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Commit | Line | Data |
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2c0262af FB |
1 | /* |
2 | * ARM translation | |
5fafdf24 | 3 | * |
2c0262af | 4 | * Copyright (c) 2003 Fabrice Bellard |
9ee6e8bb | 5 | * Copyright (c) 2005-2007 CodeSourcery |
18c9b560 | 6 | * Copyright (c) 2007 OpenedHand, Ltd. |
2c0262af FB |
7 | * |
8 | * This library is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2 of the License, or (at your option) any later version. | |
12 | * | |
13 | * This library is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
8167ee88 | 19 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
2c0262af | 20 | */ |
74c21bd0 | 21 | #include "qemu/osdep.h" |
2c0262af FB |
22 | |
23 | #include "cpu.h" | |
ccd38087 | 24 | #include "internals.h" |
76cad711 | 25 | #include "disas/disas.h" |
63c91552 | 26 | #include "exec/exec-all.h" |
57fec1fe | 27 | #include "tcg-op.h" |
36a71934 | 28 | #include "tcg-op-gvec.h" |
1de7afc9 | 29 | #include "qemu/log.h" |
534df156 | 30 | #include "qemu/bitops.h" |
90c84c56 | 31 | #include "qemu/qemu-print.h" |
1d854765 | 32 | #include "arm_ldst.h" |
f1672e6f | 33 | #include "hw/semihosting/semihost.h" |
1497c961 | 34 | |
2ef6175a RH |
35 | #include "exec/helper-proto.h" |
36 | #include "exec/helper-gen.h" | |
2c0262af | 37 | |
a7e30d84 | 38 | #include "trace-tcg.h" |
508127e2 | 39 | #include "exec/log.h" |
a7e30d84 LV |
40 | |
41 | ||
2b51668f PM |
42 | #define ENABLE_ARCH_4T arm_dc_feature(s, ARM_FEATURE_V4T) |
43 | #define ENABLE_ARCH_5 arm_dc_feature(s, ARM_FEATURE_V5) | |
be5e7a76 | 44 | /* currently all emulated v5 cores are also v5TE, so don't bother */ |
2b51668f | 45 | #define ENABLE_ARCH_5TE arm_dc_feature(s, ARM_FEATURE_V5) |
09cbd501 | 46 | #define ENABLE_ARCH_5J dc_isar_feature(jazelle, s) |
2b51668f PM |
47 | #define ENABLE_ARCH_6 arm_dc_feature(s, ARM_FEATURE_V6) |
48 | #define ENABLE_ARCH_6K arm_dc_feature(s, ARM_FEATURE_V6K) | |
49 | #define ENABLE_ARCH_6T2 arm_dc_feature(s, ARM_FEATURE_THUMB2) | |
50 | #define ENABLE_ARCH_7 arm_dc_feature(s, ARM_FEATURE_V7) | |
51 | #define ENABLE_ARCH_8 arm_dc_feature(s, ARM_FEATURE_V8) | |
b5ff1b31 | 52 | |
86753403 | 53 | #define ARCH(x) do { if (!ENABLE_ARCH_##x) goto illegal_op; } while(0) |
b5ff1b31 | 54 | |
f570c61e | 55 | #include "translate.h" |
e12ce78d | 56 | |
b5ff1b31 FB |
57 | #if defined(CONFIG_USER_ONLY) |
58 | #define IS_USER(s) 1 | |
59 | #else | |
60 | #define IS_USER(s) (s->user) | |
61 | #endif | |
62 | ||
ad69471c | 63 | /* We reuse the same 64-bit temporaries for efficiency. */ |
a7812ae4 | 64 | static TCGv_i64 cpu_V0, cpu_V1, cpu_M0; |
155c3eac | 65 | static TCGv_i32 cpu_R[16]; |
78bcaa3e RH |
66 | TCGv_i32 cpu_CF, cpu_NF, cpu_VF, cpu_ZF; |
67 | TCGv_i64 cpu_exclusive_addr; | |
68 | TCGv_i64 cpu_exclusive_val; | |
ad69471c | 69 | |
022c62cb | 70 | #include "exec/gen-icount.h" |
2e70f6ef | 71 | |
308e5636 | 72 | static const char * const regnames[] = |
155c3eac FN |
73 | { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", |
74 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "pc" }; | |
75 | ||
61adacc8 RH |
76 | /* Function prototypes for gen_ functions calling Neon helpers. */ |
77 | typedef void NeonGenThreeOpEnvFn(TCGv_i32, TCGv_env, TCGv_i32, | |
78 | TCGv_i32, TCGv_i32); | |
c253dd78 PM |
79 | /* Function prototypes for gen_ functions for fix point conversions */ |
80 | typedef void VFPGenFixPointFn(TCGv_i32, TCGv_i32, TCGv_i32, TCGv_ptr); | |
61adacc8 | 81 | |
b26eefb6 PB |
82 | /* initialize TCG globals. */ |
83 | void arm_translate_init(void) | |
84 | { | |
155c3eac FN |
85 | int i; |
86 | ||
155c3eac | 87 | for (i = 0; i < 16; i++) { |
e1ccc054 | 88 | cpu_R[i] = tcg_global_mem_new_i32(cpu_env, |
0ecb72a5 | 89 | offsetof(CPUARMState, regs[i]), |
155c3eac FN |
90 | regnames[i]); |
91 | } | |
e1ccc054 RH |
92 | cpu_CF = tcg_global_mem_new_i32(cpu_env, offsetof(CPUARMState, CF), "CF"); |
93 | cpu_NF = tcg_global_mem_new_i32(cpu_env, offsetof(CPUARMState, NF), "NF"); | |
94 | cpu_VF = tcg_global_mem_new_i32(cpu_env, offsetof(CPUARMState, VF), "VF"); | |
95 | cpu_ZF = tcg_global_mem_new_i32(cpu_env, offsetof(CPUARMState, ZF), "ZF"); | |
66c374de | 96 | |
e1ccc054 | 97 | cpu_exclusive_addr = tcg_global_mem_new_i64(cpu_env, |
0ecb72a5 | 98 | offsetof(CPUARMState, exclusive_addr), "exclusive_addr"); |
e1ccc054 | 99 | cpu_exclusive_val = tcg_global_mem_new_i64(cpu_env, |
0ecb72a5 | 100 | offsetof(CPUARMState, exclusive_val), "exclusive_val"); |
155c3eac | 101 | |
14ade10f | 102 | a64_translate_init(); |
b26eefb6 PB |
103 | } |
104 | ||
9bb6558a PM |
105 | /* Flags for the disas_set_da_iss info argument: |
106 | * lower bits hold the Rt register number, higher bits are flags. | |
107 | */ | |
108 | typedef enum ISSInfo { | |
109 | ISSNone = 0, | |
110 | ISSRegMask = 0x1f, | |
111 | ISSInvalid = (1 << 5), | |
112 | ISSIsAcqRel = (1 << 6), | |
113 | ISSIsWrite = (1 << 7), | |
114 | ISSIs16Bit = (1 << 8), | |
115 | } ISSInfo; | |
116 | ||
117 | /* Save the syndrome information for a Data Abort */ | |
118 | static void disas_set_da_iss(DisasContext *s, TCGMemOp memop, ISSInfo issinfo) | |
119 | { | |
120 | uint32_t syn; | |
121 | int sas = memop & MO_SIZE; | |
122 | bool sse = memop & MO_SIGN; | |
123 | bool is_acqrel = issinfo & ISSIsAcqRel; | |
124 | bool is_write = issinfo & ISSIsWrite; | |
125 | bool is_16bit = issinfo & ISSIs16Bit; | |
126 | int srt = issinfo & ISSRegMask; | |
127 | ||
128 | if (issinfo & ISSInvalid) { | |
129 | /* Some callsites want to conditionally provide ISS info, | |
130 | * eg "only if this was not a writeback" | |
131 | */ | |
132 | return; | |
133 | } | |
134 | ||
135 | if (srt == 15) { | |
136 | /* For AArch32, insns where the src/dest is R15 never generate | |
137 | * ISS information. Catching that here saves checking at all | |
138 | * the call sites. | |
139 | */ | |
140 | return; | |
141 | } | |
142 | ||
143 | syn = syn_data_abort_with_iss(0, sas, sse, srt, 0, is_acqrel, | |
144 | 0, 0, 0, is_write, 0, is_16bit); | |
145 | disas_set_insn_syndrome(s, syn); | |
146 | } | |
147 | ||
8bd5c820 | 148 | static inline int get_a32_user_mem_index(DisasContext *s) |
579d21cc | 149 | { |
8bd5c820 | 150 | /* Return the core mmu_idx to use for A32/T32 "unprivileged load/store" |
579d21cc PM |
151 | * insns: |
152 | * if PL2, UNPREDICTABLE (we choose to implement as if PL0) | |
153 | * otherwise, access as if at PL0. | |
154 | */ | |
155 | switch (s->mmu_idx) { | |
156 | case ARMMMUIdx_S1E2: /* this one is UNPREDICTABLE */ | |
157 | case ARMMMUIdx_S12NSE0: | |
158 | case ARMMMUIdx_S12NSE1: | |
8bd5c820 | 159 | return arm_to_core_mmu_idx(ARMMMUIdx_S12NSE0); |
579d21cc PM |
160 | case ARMMMUIdx_S1E3: |
161 | case ARMMMUIdx_S1SE0: | |
162 | case ARMMMUIdx_S1SE1: | |
8bd5c820 | 163 | return arm_to_core_mmu_idx(ARMMMUIdx_S1SE0); |
e7b921c2 PM |
164 | case ARMMMUIdx_MUser: |
165 | case ARMMMUIdx_MPriv: | |
166 | return arm_to_core_mmu_idx(ARMMMUIdx_MUser); | |
62593718 PM |
167 | case ARMMMUIdx_MUserNegPri: |
168 | case ARMMMUIdx_MPrivNegPri: | |
169 | return arm_to_core_mmu_idx(ARMMMUIdx_MUserNegPri); | |
b9f587d6 PM |
170 | case ARMMMUIdx_MSUser: |
171 | case ARMMMUIdx_MSPriv: | |
b9f587d6 | 172 | return arm_to_core_mmu_idx(ARMMMUIdx_MSUser); |
62593718 PM |
173 | case ARMMMUIdx_MSUserNegPri: |
174 | case ARMMMUIdx_MSPrivNegPri: | |
175 | return arm_to_core_mmu_idx(ARMMMUIdx_MSUserNegPri); | |
579d21cc PM |
176 | case ARMMMUIdx_S2NS: |
177 | default: | |
178 | g_assert_not_reached(); | |
179 | } | |
180 | } | |
181 | ||
39d5492a | 182 | static inline TCGv_i32 load_cpu_offset(int offset) |
d9ba4830 | 183 | { |
39d5492a | 184 | TCGv_i32 tmp = tcg_temp_new_i32(); |
d9ba4830 PB |
185 | tcg_gen_ld_i32(tmp, cpu_env, offset); |
186 | return tmp; | |
187 | } | |
188 | ||
0ecb72a5 | 189 | #define load_cpu_field(name) load_cpu_offset(offsetof(CPUARMState, name)) |
d9ba4830 | 190 | |
39d5492a | 191 | static inline void store_cpu_offset(TCGv_i32 var, int offset) |
d9ba4830 PB |
192 | { |
193 | tcg_gen_st_i32(var, cpu_env, offset); | |
7d1b0095 | 194 | tcg_temp_free_i32(var); |
d9ba4830 PB |
195 | } |
196 | ||
197 | #define store_cpu_field(var, name) \ | |
0ecb72a5 | 198 | store_cpu_offset(var, offsetof(CPUARMState, name)) |
d9ba4830 | 199 | |
b26eefb6 | 200 | /* Set a variable to the value of a CPU register. */ |
39d5492a | 201 | static void load_reg_var(DisasContext *s, TCGv_i32 var, int reg) |
b26eefb6 PB |
202 | { |
203 | if (reg == 15) { | |
204 | uint32_t addr; | |
b90372ad | 205 | /* normally, since we updated PC, we need only to add one insn */ |
b26eefb6 PB |
206 | if (s->thumb) |
207 | addr = (long)s->pc + 2; | |
208 | else | |
209 | addr = (long)s->pc + 4; | |
210 | tcg_gen_movi_i32(var, addr); | |
211 | } else { | |
155c3eac | 212 | tcg_gen_mov_i32(var, cpu_R[reg]); |
b26eefb6 PB |
213 | } |
214 | } | |
215 | ||
216 | /* Create a new temporary and set it to the value of a CPU register. */ | |
39d5492a | 217 | static inline TCGv_i32 load_reg(DisasContext *s, int reg) |
b26eefb6 | 218 | { |
39d5492a | 219 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b26eefb6 PB |
220 | load_reg_var(s, tmp, reg); |
221 | return tmp; | |
222 | } | |
223 | ||
224 | /* Set a CPU register. The source must be a temporary and will be | |
225 | marked as dead. */ | |
39d5492a | 226 | static void store_reg(DisasContext *s, int reg, TCGv_i32 var) |
b26eefb6 PB |
227 | { |
228 | if (reg == 15) { | |
9b6a3ea7 PM |
229 | /* In Thumb mode, we must ignore bit 0. |
230 | * In ARM mode, for ARMv4 and ARMv5, it is UNPREDICTABLE if bits [1:0] | |
231 | * are not 0b00, but for ARMv6 and above, we must ignore bits [1:0]. | |
232 | * We choose to ignore [1:0] in ARM mode for all architecture versions. | |
233 | */ | |
234 | tcg_gen_andi_i32(var, var, s->thumb ? ~1 : ~3); | |
dcba3a8d | 235 | s->base.is_jmp = DISAS_JUMP; |
b26eefb6 | 236 | } |
155c3eac | 237 | tcg_gen_mov_i32(cpu_R[reg], var); |
7d1b0095 | 238 | tcg_temp_free_i32(var); |
b26eefb6 PB |
239 | } |
240 | ||
55203189 PM |
241 | /* |
242 | * Variant of store_reg which applies v8M stack-limit checks before updating | |
243 | * SP. If the check fails this will result in an exception being taken. | |
244 | * We disable the stack checks for CONFIG_USER_ONLY because we have | |
245 | * no idea what the stack limits should be in that case. | |
246 | * If stack checking is not being done this just acts like store_reg(). | |
247 | */ | |
248 | static void store_sp_checked(DisasContext *s, TCGv_i32 var) | |
249 | { | |
250 | #ifndef CONFIG_USER_ONLY | |
251 | if (s->v8m_stackcheck) { | |
252 | gen_helper_v8m_stackcheck(cpu_env, var); | |
253 | } | |
254 | #endif | |
255 | store_reg(s, 13, var); | |
256 | } | |
257 | ||
b26eefb6 | 258 | /* Value extensions. */ |
86831435 PB |
259 | #define gen_uxtb(var) tcg_gen_ext8u_i32(var, var) |
260 | #define gen_uxth(var) tcg_gen_ext16u_i32(var, var) | |
b26eefb6 PB |
261 | #define gen_sxtb(var) tcg_gen_ext8s_i32(var, var) |
262 | #define gen_sxth(var) tcg_gen_ext16s_i32(var, var) | |
263 | ||
1497c961 PB |
264 | #define gen_sxtb16(var) gen_helper_sxtb16(var, var) |
265 | #define gen_uxtb16(var) gen_helper_uxtb16(var, var) | |
8f01245e | 266 | |
b26eefb6 | 267 | |
39d5492a | 268 | static inline void gen_set_cpsr(TCGv_i32 var, uint32_t mask) |
b75263d6 | 269 | { |
39d5492a | 270 | TCGv_i32 tmp_mask = tcg_const_i32(mask); |
1ce94f81 | 271 | gen_helper_cpsr_write(cpu_env, var, tmp_mask); |
b75263d6 JR |
272 | tcg_temp_free_i32(tmp_mask); |
273 | } | |
d9ba4830 PB |
274 | /* Set NZCV flags from the high 4 bits of var. */ |
275 | #define gen_set_nzcv(var) gen_set_cpsr(var, CPSR_NZCV) | |
276 | ||
d4a2dc67 | 277 | static void gen_exception_internal(int excp) |
d9ba4830 | 278 | { |
d4a2dc67 PM |
279 | TCGv_i32 tcg_excp = tcg_const_i32(excp); |
280 | ||
281 | assert(excp_is_internal(excp)); | |
282 | gen_helper_exception_internal(cpu_env, tcg_excp); | |
283 | tcg_temp_free_i32(tcg_excp); | |
284 | } | |
285 | ||
73710361 | 286 | static void gen_exception(int excp, uint32_t syndrome, uint32_t target_el) |
d4a2dc67 PM |
287 | { |
288 | TCGv_i32 tcg_excp = tcg_const_i32(excp); | |
289 | TCGv_i32 tcg_syn = tcg_const_i32(syndrome); | |
73710361 | 290 | TCGv_i32 tcg_el = tcg_const_i32(target_el); |
d4a2dc67 | 291 | |
73710361 GB |
292 | gen_helper_exception_with_syndrome(cpu_env, tcg_excp, |
293 | tcg_syn, tcg_el); | |
294 | ||
295 | tcg_temp_free_i32(tcg_el); | |
d4a2dc67 PM |
296 | tcg_temp_free_i32(tcg_syn); |
297 | tcg_temp_free_i32(tcg_excp); | |
d9ba4830 PB |
298 | } |
299 | ||
50225ad0 PM |
300 | static void gen_step_complete_exception(DisasContext *s) |
301 | { | |
302 | /* We just completed step of an insn. Move from Active-not-pending | |
303 | * to Active-pending, and then also take the swstep exception. | |
304 | * This corresponds to making the (IMPDEF) choice to prioritize | |
305 | * swstep exceptions over asynchronous exceptions taken to an exception | |
306 | * level where debug is disabled. This choice has the advantage that | |
307 | * we do not need to maintain internal state corresponding to the | |
308 | * ISV/EX syndrome bits between completion of the step and generation | |
309 | * of the exception, and our syndrome information is always correct. | |
310 | */ | |
311 | gen_ss_advance(s); | |
73710361 GB |
312 | gen_exception(EXCP_UDEF, syn_swstep(s->ss_same_el, 1, s->is_ldex), |
313 | default_exception_el(s)); | |
dcba3a8d | 314 | s->base.is_jmp = DISAS_NORETURN; |
50225ad0 PM |
315 | } |
316 | ||
5425415e PM |
317 | static void gen_singlestep_exception(DisasContext *s) |
318 | { | |
319 | /* Generate the right kind of exception for singlestep, which is | |
320 | * either the architectural singlestep or EXCP_DEBUG for QEMU's | |
321 | * gdb singlestepping. | |
322 | */ | |
323 | if (s->ss_active) { | |
324 | gen_step_complete_exception(s); | |
325 | } else { | |
326 | gen_exception_internal(EXCP_DEBUG); | |
327 | } | |
328 | } | |
329 | ||
b636649f PM |
330 | static inline bool is_singlestepping(DisasContext *s) |
331 | { | |
332 | /* Return true if we are singlestepping either because of | |
333 | * architectural singlestep or QEMU gdbstub singlestep. This does | |
334 | * not include the command line '-singlestep' mode which is rather | |
335 | * misnamed as it only means "one instruction per TB" and doesn't | |
336 | * affect the code we generate. | |
337 | */ | |
dcba3a8d | 338 | return s->base.singlestep_enabled || s->ss_active; |
b636649f PM |
339 | } |
340 | ||
39d5492a | 341 | static void gen_smul_dual(TCGv_i32 a, TCGv_i32 b) |
3670669c | 342 | { |
39d5492a PM |
343 | TCGv_i32 tmp1 = tcg_temp_new_i32(); |
344 | TCGv_i32 tmp2 = tcg_temp_new_i32(); | |
22478e79 AZ |
345 | tcg_gen_ext16s_i32(tmp1, a); |
346 | tcg_gen_ext16s_i32(tmp2, b); | |
3670669c | 347 | tcg_gen_mul_i32(tmp1, tmp1, tmp2); |
7d1b0095 | 348 | tcg_temp_free_i32(tmp2); |
3670669c PB |
349 | tcg_gen_sari_i32(a, a, 16); |
350 | tcg_gen_sari_i32(b, b, 16); | |
351 | tcg_gen_mul_i32(b, b, a); | |
352 | tcg_gen_mov_i32(a, tmp1); | |
7d1b0095 | 353 | tcg_temp_free_i32(tmp1); |
3670669c PB |
354 | } |
355 | ||
356 | /* Byteswap each halfword. */ | |
39d5492a | 357 | static void gen_rev16(TCGv_i32 var) |
3670669c | 358 | { |
39d5492a | 359 | TCGv_i32 tmp = tcg_temp_new_i32(); |
68cedf73 | 360 | TCGv_i32 mask = tcg_const_i32(0x00ff00ff); |
3670669c | 361 | tcg_gen_shri_i32(tmp, var, 8); |
68cedf73 AJ |
362 | tcg_gen_and_i32(tmp, tmp, mask); |
363 | tcg_gen_and_i32(var, var, mask); | |
3670669c | 364 | tcg_gen_shli_i32(var, var, 8); |
3670669c | 365 | tcg_gen_or_i32(var, var, tmp); |
68cedf73 | 366 | tcg_temp_free_i32(mask); |
7d1b0095 | 367 | tcg_temp_free_i32(tmp); |
3670669c PB |
368 | } |
369 | ||
370 | /* Byteswap low halfword and sign extend. */ | |
39d5492a | 371 | static void gen_revsh(TCGv_i32 var) |
3670669c | 372 | { |
1a855029 AJ |
373 | tcg_gen_ext16u_i32(var, var); |
374 | tcg_gen_bswap16_i32(var, var); | |
375 | tcg_gen_ext16s_i32(var, var); | |
3670669c PB |
376 | } |
377 | ||
838fa72d | 378 | /* Return (b << 32) + a. Mark inputs as dead */ |
39d5492a | 379 | static TCGv_i64 gen_addq_msw(TCGv_i64 a, TCGv_i32 b) |
3670669c | 380 | { |
838fa72d AJ |
381 | TCGv_i64 tmp64 = tcg_temp_new_i64(); |
382 | ||
383 | tcg_gen_extu_i32_i64(tmp64, b); | |
7d1b0095 | 384 | tcg_temp_free_i32(b); |
838fa72d AJ |
385 | tcg_gen_shli_i64(tmp64, tmp64, 32); |
386 | tcg_gen_add_i64(a, tmp64, a); | |
387 | ||
388 | tcg_temp_free_i64(tmp64); | |
389 | return a; | |
390 | } | |
391 | ||
392 | /* Return (b << 32) - a. Mark inputs as dead. */ | |
39d5492a | 393 | static TCGv_i64 gen_subq_msw(TCGv_i64 a, TCGv_i32 b) |
838fa72d AJ |
394 | { |
395 | TCGv_i64 tmp64 = tcg_temp_new_i64(); | |
396 | ||
397 | tcg_gen_extu_i32_i64(tmp64, b); | |
7d1b0095 | 398 | tcg_temp_free_i32(b); |
838fa72d AJ |
399 | tcg_gen_shli_i64(tmp64, tmp64, 32); |
400 | tcg_gen_sub_i64(a, tmp64, a); | |
401 | ||
402 | tcg_temp_free_i64(tmp64); | |
403 | return a; | |
3670669c PB |
404 | } |
405 | ||
5e3f878a | 406 | /* 32x32->64 multiply. Marks inputs as dead. */ |
39d5492a | 407 | static TCGv_i64 gen_mulu_i64_i32(TCGv_i32 a, TCGv_i32 b) |
5e3f878a | 408 | { |
39d5492a PM |
409 | TCGv_i32 lo = tcg_temp_new_i32(); |
410 | TCGv_i32 hi = tcg_temp_new_i32(); | |
831d7fe8 | 411 | TCGv_i64 ret; |
5e3f878a | 412 | |
831d7fe8 | 413 | tcg_gen_mulu2_i32(lo, hi, a, b); |
7d1b0095 | 414 | tcg_temp_free_i32(a); |
7d1b0095 | 415 | tcg_temp_free_i32(b); |
831d7fe8 RH |
416 | |
417 | ret = tcg_temp_new_i64(); | |
418 | tcg_gen_concat_i32_i64(ret, lo, hi); | |
39d5492a PM |
419 | tcg_temp_free_i32(lo); |
420 | tcg_temp_free_i32(hi); | |
831d7fe8 RH |
421 | |
422 | return ret; | |
5e3f878a PB |
423 | } |
424 | ||
39d5492a | 425 | static TCGv_i64 gen_muls_i64_i32(TCGv_i32 a, TCGv_i32 b) |
5e3f878a | 426 | { |
39d5492a PM |
427 | TCGv_i32 lo = tcg_temp_new_i32(); |
428 | TCGv_i32 hi = tcg_temp_new_i32(); | |
831d7fe8 | 429 | TCGv_i64 ret; |
5e3f878a | 430 | |
831d7fe8 | 431 | tcg_gen_muls2_i32(lo, hi, a, b); |
7d1b0095 | 432 | tcg_temp_free_i32(a); |
7d1b0095 | 433 | tcg_temp_free_i32(b); |
831d7fe8 RH |
434 | |
435 | ret = tcg_temp_new_i64(); | |
436 | tcg_gen_concat_i32_i64(ret, lo, hi); | |
39d5492a PM |
437 | tcg_temp_free_i32(lo); |
438 | tcg_temp_free_i32(hi); | |
831d7fe8 RH |
439 | |
440 | return ret; | |
5e3f878a PB |
441 | } |
442 | ||
8f01245e | 443 | /* Swap low and high halfwords. */ |
39d5492a | 444 | static void gen_swap_half(TCGv_i32 var) |
8f01245e | 445 | { |
39d5492a | 446 | TCGv_i32 tmp = tcg_temp_new_i32(); |
8f01245e PB |
447 | tcg_gen_shri_i32(tmp, var, 16); |
448 | tcg_gen_shli_i32(var, var, 16); | |
449 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 450 | tcg_temp_free_i32(tmp); |
8f01245e PB |
451 | } |
452 | ||
b26eefb6 PB |
453 | /* Dual 16-bit add. Result placed in t0 and t1 is marked as dead. |
454 | tmp = (t0 ^ t1) & 0x8000; | |
455 | t0 &= ~0x8000; | |
456 | t1 &= ~0x8000; | |
457 | t0 = (t0 + t1) ^ tmp; | |
458 | */ | |
459 | ||
39d5492a | 460 | static void gen_add16(TCGv_i32 t0, TCGv_i32 t1) |
b26eefb6 | 461 | { |
39d5492a | 462 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b26eefb6 PB |
463 | tcg_gen_xor_i32(tmp, t0, t1); |
464 | tcg_gen_andi_i32(tmp, tmp, 0x8000); | |
465 | tcg_gen_andi_i32(t0, t0, ~0x8000); | |
466 | tcg_gen_andi_i32(t1, t1, ~0x8000); | |
467 | tcg_gen_add_i32(t0, t0, t1); | |
468 | tcg_gen_xor_i32(t0, t0, tmp); | |
7d1b0095 PM |
469 | tcg_temp_free_i32(tmp); |
470 | tcg_temp_free_i32(t1); | |
b26eefb6 PB |
471 | } |
472 | ||
473 | /* Set CF to the top bit of var. */ | |
39d5492a | 474 | static void gen_set_CF_bit31(TCGv_i32 var) |
b26eefb6 | 475 | { |
66c374de | 476 | tcg_gen_shri_i32(cpu_CF, var, 31); |
b26eefb6 PB |
477 | } |
478 | ||
479 | /* Set N and Z flags from var. */ | |
39d5492a | 480 | static inline void gen_logic_CC(TCGv_i32 var) |
b26eefb6 | 481 | { |
66c374de AJ |
482 | tcg_gen_mov_i32(cpu_NF, var); |
483 | tcg_gen_mov_i32(cpu_ZF, var); | |
b26eefb6 PB |
484 | } |
485 | ||
486 | /* T0 += T1 + CF. */ | |
39d5492a | 487 | static void gen_adc(TCGv_i32 t0, TCGv_i32 t1) |
b26eefb6 | 488 | { |
396e467c | 489 | tcg_gen_add_i32(t0, t0, t1); |
66c374de | 490 | tcg_gen_add_i32(t0, t0, cpu_CF); |
b26eefb6 PB |
491 | } |
492 | ||
e9bb4aa9 | 493 | /* dest = T0 + T1 + CF. */ |
39d5492a | 494 | static void gen_add_carry(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
e9bb4aa9 | 495 | { |
e9bb4aa9 | 496 | tcg_gen_add_i32(dest, t0, t1); |
66c374de | 497 | tcg_gen_add_i32(dest, dest, cpu_CF); |
e9bb4aa9 JR |
498 | } |
499 | ||
3670669c | 500 | /* dest = T0 - T1 + CF - 1. */ |
39d5492a | 501 | static void gen_sub_carry(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
3670669c | 502 | { |
3670669c | 503 | tcg_gen_sub_i32(dest, t0, t1); |
66c374de | 504 | tcg_gen_add_i32(dest, dest, cpu_CF); |
3670669c | 505 | tcg_gen_subi_i32(dest, dest, 1); |
3670669c PB |
506 | } |
507 | ||
72485ec4 | 508 | /* dest = T0 + T1. Compute C, N, V and Z flags */ |
39d5492a | 509 | static void gen_add_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
72485ec4 | 510 | { |
39d5492a | 511 | TCGv_i32 tmp = tcg_temp_new_i32(); |
e3482cb8 RH |
512 | tcg_gen_movi_i32(tmp, 0); |
513 | tcg_gen_add2_i32(cpu_NF, cpu_CF, t0, tmp, t1, tmp); | |
72485ec4 | 514 | tcg_gen_mov_i32(cpu_ZF, cpu_NF); |
72485ec4 | 515 | tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); |
72485ec4 AJ |
516 | tcg_gen_xor_i32(tmp, t0, t1); |
517 | tcg_gen_andc_i32(cpu_VF, cpu_VF, tmp); | |
518 | tcg_temp_free_i32(tmp); | |
519 | tcg_gen_mov_i32(dest, cpu_NF); | |
520 | } | |
521 | ||
49b4c31e | 522 | /* dest = T0 + T1 + CF. Compute C, N, V and Z flags */ |
39d5492a | 523 | static void gen_adc_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
49b4c31e | 524 | { |
39d5492a | 525 | TCGv_i32 tmp = tcg_temp_new_i32(); |
49b4c31e RH |
526 | if (TCG_TARGET_HAS_add2_i32) { |
527 | tcg_gen_movi_i32(tmp, 0); | |
528 | tcg_gen_add2_i32(cpu_NF, cpu_CF, t0, tmp, cpu_CF, tmp); | |
8c3ac601 | 529 | tcg_gen_add2_i32(cpu_NF, cpu_CF, cpu_NF, cpu_CF, t1, tmp); |
49b4c31e RH |
530 | } else { |
531 | TCGv_i64 q0 = tcg_temp_new_i64(); | |
532 | TCGv_i64 q1 = tcg_temp_new_i64(); | |
533 | tcg_gen_extu_i32_i64(q0, t0); | |
534 | tcg_gen_extu_i32_i64(q1, t1); | |
535 | tcg_gen_add_i64(q0, q0, q1); | |
536 | tcg_gen_extu_i32_i64(q1, cpu_CF); | |
537 | tcg_gen_add_i64(q0, q0, q1); | |
538 | tcg_gen_extr_i64_i32(cpu_NF, cpu_CF, q0); | |
539 | tcg_temp_free_i64(q0); | |
540 | tcg_temp_free_i64(q1); | |
541 | } | |
542 | tcg_gen_mov_i32(cpu_ZF, cpu_NF); | |
543 | tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); | |
544 | tcg_gen_xor_i32(tmp, t0, t1); | |
545 | tcg_gen_andc_i32(cpu_VF, cpu_VF, tmp); | |
546 | tcg_temp_free_i32(tmp); | |
547 | tcg_gen_mov_i32(dest, cpu_NF); | |
548 | } | |
549 | ||
72485ec4 | 550 | /* dest = T0 - T1. Compute C, N, V and Z flags */ |
39d5492a | 551 | static void gen_sub_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
72485ec4 | 552 | { |
39d5492a | 553 | TCGv_i32 tmp; |
72485ec4 AJ |
554 | tcg_gen_sub_i32(cpu_NF, t0, t1); |
555 | tcg_gen_mov_i32(cpu_ZF, cpu_NF); | |
556 | tcg_gen_setcond_i32(TCG_COND_GEU, cpu_CF, t0, t1); | |
557 | tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); | |
558 | tmp = tcg_temp_new_i32(); | |
559 | tcg_gen_xor_i32(tmp, t0, t1); | |
560 | tcg_gen_and_i32(cpu_VF, cpu_VF, tmp); | |
561 | tcg_temp_free_i32(tmp); | |
562 | tcg_gen_mov_i32(dest, cpu_NF); | |
563 | } | |
564 | ||
e77f0832 | 565 | /* dest = T0 + ~T1 + CF. Compute C, N, V and Z flags */ |
39d5492a | 566 | static void gen_sbc_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
2de68a49 | 567 | { |
39d5492a | 568 | TCGv_i32 tmp = tcg_temp_new_i32(); |
e77f0832 RH |
569 | tcg_gen_not_i32(tmp, t1); |
570 | gen_adc_CC(dest, t0, tmp); | |
39d5492a | 571 | tcg_temp_free_i32(tmp); |
2de68a49 RH |
572 | } |
573 | ||
365af80e | 574 | #define GEN_SHIFT(name) \ |
39d5492a | 575 | static void gen_##name(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) \ |
365af80e | 576 | { \ |
39d5492a | 577 | TCGv_i32 tmp1, tmp2, tmp3; \ |
365af80e AJ |
578 | tmp1 = tcg_temp_new_i32(); \ |
579 | tcg_gen_andi_i32(tmp1, t1, 0xff); \ | |
580 | tmp2 = tcg_const_i32(0); \ | |
581 | tmp3 = tcg_const_i32(0x1f); \ | |
582 | tcg_gen_movcond_i32(TCG_COND_GTU, tmp2, tmp1, tmp3, tmp2, t0); \ | |
583 | tcg_temp_free_i32(tmp3); \ | |
584 | tcg_gen_andi_i32(tmp1, tmp1, 0x1f); \ | |
585 | tcg_gen_##name##_i32(dest, tmp2, tmp1); \ | |
586 | tcg_temp_free_i32(tmp2); \ | |
587 | tcg_temp_free_i32(tmp1); \ | |
588 | } | |
589 | GEN_SHIFT(shl) | |
590 | GEN_SHIFT(shr) | |
591 | #undef GEN_SHIFT | |
592 | ||
39d5492a | 593 | static void gen_sar(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
365af80e | 594 | { |
39d5492a | 595 | TCGv_i32 tmp1, tmp2; |
365af80e AJ |
596 | tmp1 = tcg_temp_new_i32(); |
597 | tcg_gen_andi_i32(tmp1, t1, 0xff); | |
598 | tmp2 = tcg_const_i32(0x1f); | |
599 | tcg_gen_movcond_i32(TCG_COND_GTU, tmp1, tmp1, tmp2, tmp2, tmp1); | |
600 | tcg_temp_free_i32(tmp2); | |
601 | tcg_gen_sar_i32(dest, t0, tmp1); | |
602 | tcg_temp_free_i32(tmp1); | |
603 | } | |
604 | ||
39d5492a | 605 | static void shifter_out_im(TCGv_i32 var, int shift) |
b26eefb6 | 606 | { |
9a119ff6 | 607 | if (shift == 0) { |
66c374de | 608 | tcg_gen_andi_i32(cpu_CF, var, 1); |
b26eefb6 | 609 | } else { |
66c374de AJ |
610 | tcg_gen_shri_i32(cpu_CF, var, shift); |
611 | if (shift != 31) { | |
612 | tcg_gen_andi_i32(cpu_CF, cpu_CF, 1); | |
613 | } | |
9a119ff6 | 614 | } |
9a119ff6 | 615 | } |
b26eefb6 | 616 | |
9a119ff6 | 617 | /* Shift by immediate. Includes special handling for shift == 0. */ |
39d5492a PM |
618 | static inline void gen_arm_shift_im(TCGv_i32 var, int shiftop, |
619 | int shift, int flags) | |
9a119ff6 PB |
620 | { |
621 | switch (shiftop) { | |
622 | case 0: /* LSL */ | |
623 | if (shift != 0) { | |
624 | if (flags) | |
625 | shifter_out_im(var, 32 - shift); | |
626 | tcg_gen_shli_i32(var, var, shift); | |
627 | } | |
628 | break; | |
629 | case 1: /* LSR */ | |
630 | if (shift == 0) { | |
631 | if (flags) { | |
66c374de | 632 | tcg_gen_shri_i32(cpu_CF, var, 31); |
9a119ff6 PB |
633 | } |
634 | tcg_gen_movi_i32(var, 0); | |
635 | } else { | |
636 | if (flags) | |
637 | shifter_out_im(var, shift - 1); | |
638 | tcg_gen_shri_i32(var, var, shift); | |
639 | } | |
640 | break; | |
641 | case 2: /* ASR */ | |
642 | if (shift == 0) | |
643 | shift = 32; | |
644 | if (flags) | |
645 | shifter_out_im(var, shift - 1); | |
646 | if (shift == 32) | |
647 | shift = 31; | |
648 | tcg_gen_sari_i32(var, var, shift); | |
649 | break; | |
650 | case 3: /* ROR/RRX */ | |
651 | if (shift != 0) { | |
652 | if (flags) | |
653 | shifter_out_im(var, shift - 1); | |
f669df27 | 654 | tcg_gen_rotri_i32(var, var, shift); break; |
9a119ff6 | 655 | } else { |
39d5492a | 656 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b6348f29 | 657 | tcg_gen_shli_i32(tmp, cpu_CF, 31); |
9a119ff6 PB |
658 | if (flags) |
659 | shifter_out_im(var, 0); | |
660 | tcg_gen_shri_i32(var, var, 1); | |
b26eefb6 | 661 | tcg_gen_or_i32(var, var, tmp); |
7d1b0095 | 662 | tcg_temp_free_i32(tmp); |
b26eefb6 PB |
663 | } |
664 | } | |
665 | }; | |
666 | ||
39d5492a PM |
667 | static inline void gen_arm_shift_reg(TCGv_i32 var, int shiftop, |
668 | TCGv_i32 shift, int flags) | |
8984bd2e PB |
669 | { |
670 | if (flags) { | |
671 | switch (shiftop) { | |
9ef39277 BS |
672 | case 0: gen_helper_shl_cc(var, cpu_env, var, shift); break; |
673 | case 1: gen_helper_shr_cc(var, cpu_env, var, shift); break; | |
674 | case 2: gen_helper_sar_cc(var, cpu_env, var, shift); break; | |
675 | case 3: gen_helper_ror_cc(var, cpu_env, var, shift); break; | |
8984bd2e PB |
676 | } |
677 | } else { | |
678 | switch (shiftop) { | |
365af80e AJ |
679 | case 0: |
680 | gen_shl(var, var, shift); | |
681 | break; | |
682 | case 1: | |
683 | gen_shr(var, var, shift); | |
684 | break; | |
685 | case 2: | |
686 | gen_sar(var, var, shift); | |
687 | break; | |
f669df27 AJ |
688 | case 3: tcg_gen_andi_i32(shift, shift, 0x1f); |
689 | tcg_gen_rotr_i32(var, var, shift); break; | |
8984bd2e PB |
690 | } |
691 | } | |
7d1b0095 | 692 | tcg_temp_free_i32(shift); |
8984bd2e PB |
693 | } |
694 | ||
6ddbc6e4 PB |
695 | #define PAS_OP(pfx) \ |
696 | switch (op2) { \ | |
697 | case 0: gen_pas_helper(glue(pfx,add16)); break; \ | |
698 | case 1: gen_pas_helper(glue(pfx,addsubx)); break; \ | |
699 | case 2: gen_pas_helper(glue(pfx,subaddx)); break; \ | |
700 | case 3: gen_pas_helper(glue(pfx,sub16)); break; \ | |
701 | case 4: gen_pas_helper(glue(pfx,add8)); break; \ | |
702 | case 7: gen_pas_helper(glue(pfx,sub8)); break; \ | |
703 | } | |
39d5492a | 704 | static void gen_arm_parallel_addsub(int op1, int op2, TCGv_i32 a, TCGv_i32 b) |
6ddbc6e4 | 705 | { |
a7812ae4 | 706 | TCGv_ptr tmp; |
6ddbc6e4 PB |
707 | |
708 | switch (op1) { | |
709 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp) | |
710 | case 1: | |
a7812ae4 | 711 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 712 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 713 | PAS_OP(s) |
b75263d6 | 714 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
715 | break; |
716 | case 5: | |
a7812ae4 | 717 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 718 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 719 | PAS_OP(u) |
b75263d6 | 720 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
721 | break; |
722 | #undef gen_pas_helper | |
723 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b) | |
724 | case 2: | |
725 | PAS_OP(q); | |
726 | break; | |
727 | case 3: | |
728 | PAS_OP(sh); | |
729 | break; | |
730 | case 6: | |
731 | PAS_OP(uq); | |
732 | break; | |
733 | case 7: | |
734 | PAS_OP(uh); | |
735 | break; | |
736 | #undef gen_pas_helper | |
737 | } | |
738 | } | |
9ee6e8bb PB |
739 | #undef PAS_OP |
740 | ||
6ddbc6e4 PB |
741 | /* For unknown reasons Arm and Thumb-2 use arbitrarily different encodings. */ |
742 | #define PAS_OP(pfx) \ | |
ed89a2f1 | 743 | switch (op1) { \ |
6ddbc6e4 PB |
744 | case 0: gen_pas_helper(glue(pfx,add8)); break; \ |
745 | case 1: gen_pas_helper(glue(pfx,add16)); break; \ | |
746 | case 2: gen_pas_helper(glue(pfx,addsubx)); break; \ | |
747 | case 4: gen_pas_helper(glue(pfx,sub8)); break; \ | |
748 | case 5: gen_pas_helper(glue(pfx,sub16)); break; \ | |
749 | case 6: gen_pas_helper(glue(pfx,subaddx)); break; \ | |
750 | } | |
39d5492a | 751 | static void gen_thumb2_parallel_addsub(int op1, int op2, TCGv_i32 a, TCGv_i32 b) |
6ddbc6e4 | 752 | { |
a7812ae4 | 753 | TCGv_ptr tmp; |
6ddbc6e4 | 754 | |
ed89a2f1 | 755 | switch (op2) { |
6ddbc6e4 PB |
756 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp) |
757 | case 0: | |
a7812ae4 | 758 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 759 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 760 | PAS_OP(s) |
b75263d6 | 761 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
762 | break; |
763 | case 4: | |
a7812ae4 | 764 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 765 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 766 | PAS_OP(u) |
b75263d6 | 767 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
768 | break; |
769 | #undef gen_pas_helper | |
770 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b) | |
771 | case 1: | |
772 | PAS_OP(q); | |
773 | break; | |
774 | case 2: | |
775 | PAS_OP(sh); | |
776 | break; | |
777 | case 5: | |
778 | PAS_OP(uq); | |
779 | break; | |
780 | case 6: | |
781 | PAS_OP(uh); | |
782 | break; | |
783 | #undef gen_pas_helper | |
784 | } | |
785 | } | |
9ee6e8bb PB |
786 | #undef PAS_OP |
787 | ||
39fb730a | 788 | /* |
6c2c63d3 | 789 | * Generate a conditional based on ARM condition code cc. |
39fb730a AG |
790 | * This is common between ARM and Aarch64 targets. |
791 | */ | |
6c2c63d3 | 792 | void arm_test_cc(DisasCompare *cmp, int cc) |
d9ba4830 | 793 | { |
6c2c63d3 RH |
794 | TCGv_i32 value; |
795 | TCGCond cond; | |
796 | bool global = true; | |
d9ba4830 | 797 | |
d9ba4830 PB |
798 | switch (cc) { |
799 | case 0: /* eq: Z */ | |
d9ba4830 | 800 | case 1: /* ne: !Z */ |
6c2c63d3 RH |
801 | cond = TCG_COND_EQ; |
802 | value = cpu_ZF; | |
d9ba4830 | 803 | break; |
6c2c63d3 | 804 | |
d9ba4830 | 805 | case 2: /* cs: C */ |
d9ba4830 | 806 | case 3: /* cc: !C */ |
6c2c63d3 RH |
807 | cond = TCG_COND_NE; |
808 | value = cpu_CF; | |
d9ba4830 | 809 | break; |
6c2c63d3 | 810 | |
d9ba4830 | 811 | case 4: /* mi: N */ |
d9ba4830 | 812 | case 5: /* pl: !N */ |
6c2c63d3 RH |
813 | cond = TCG_COND_LT; |
814 | value = cpu_NF; | |
d9ba4830 | 815 | break; |
6c2c63d3 | 816 | |
d9ba4830 | 817 | case 6: /* vs: V */ |
d9ba4830 | 818 | case 7: /* vc: !V */ |
6c2c63d3 RH |
819 | cond = TCG_COND_LT; |
820 | value = cpu_VF; | |
d9ba4830 | 821 | break; |
6c2c63d3 | 822 | |
d9ba4830 | 823 | case 8: /* hi: C && !Z */ |
6c2c63d3 RH |
824 | case 9: /* ls: !C || Z -> !(C && !Z) */ |
825 | cond = TCG_COND_NE; | |
826 | value = tcg_temp_new_i32(); | |
827 | global = false; | |
828 | /* CF is 1 for C, so -CF is an all-bits-set mask for C; | |
829 | ZF is non-zero for !Z; so AND the two subexpressions. */ | |
830 | tcg_gen_neg_i32(value, cpu_CF); | |
831 | tcg_gen_and_i32(value, value, cpu_ZF); | |
d9ba4830 | 832 | break; |
6c2c63d3 | 833 | |
d9ba4830 | 834 | case 10: /* ge: N == V -> N ^ V == 0 */ |
d9ba4830 | 835 | case 11: /* lt: N != V -> N ^ V != 0 */ |
6c2c63d3 RH |
836 | /* Since we're only interested in the sign bit, == 0 is >= 0. */ |
837 | cond = TCG_COND_GE; | |
838 | value = tcg_temp_new_i32(); | |
839 | global = false; | |
840 | tcg_gen_xor_i32(value, cpu_VF, cpu_NF); | |
d9ba4830 | 841 | break; |
6c2c63d3 | 842 | |
d9ba4830 | 843 | case 12: /* gt: !Z && N == V */ |
d9ba4830 | 844 | case 13: /* le: Z || N != V */ |
6c2c63d3 RH |
845 | cond = TCG_COND_NE; |
846 | value = tcg_temp_new_i32(); | |
847 | global = false; | |
848 | /* (N == V) is equal to the sign bit of ~(NF ^ VF). Propagate | |
849 | * the sign bit then AND with ZF to yield the result. */ | |
850 | tcg_gen_xor_i32(value, cpu_VF, cpu_NF); | |
851 | tcg_gen_sari_i32(value, value, 31); | |
852 | tcg_gen_andc_i32(value, cpu_ZF, value); | |
d9ba4830 | 853 | break; |
6c2c63d3 | 854 | |
9305eac0 RH |
855 | case 14: /* always */ |
856 | case 15: /* always */ | |
857 | /* Use the ALWAYS condition, which will fold early. | |
858 | * It doesn't matter what we use for the value. */ | |
859 | cond = TCG_COND_ALWAYS; | |
860 | value = cpu_ZF; | |
861 | goto no_invert; | |
862 | ||
d9ba4830 PB |
863 | default: |
864 | fprintf(stderr, "Bad condition code 0x%x\n", cc); | |
865 | abort(); | |
866 | } | |
6c2c63d3 RH |
867 | |
868 | if (cc & 1) { | |
869 | cond = tcg_invert_cond(cond); | |
870 | } | |
871 | ||
9305eac0 | 872 | no_invert: |
6c2c63d3 RH |
873 | cmp->cond = cond; |
874 | cmp->value = value; | |
875 | cmp->value_global = global; | |
876 | } | |
877 | ||
878 | void arm_free_cc(DisasCompare *cmp) | |
879 | { | |
880 | if (!cmp->value_global) { | |
881 | tcg_temp_free_i32(cmp->value); | |
882 | } | |
883 | } | |
884 | ||
885 | void arm_jump_cc(DisasCompare *cmp, TCGLabel *label) | |
886 | { | |
887 | tcg_gen_brcondi_i32(cmp->cond, cmp->value, 0, label); | |
888 | } | |
889 | ||
890 | void arm_gen_test_cc(int cc, TCGLabel *label) | |
891 | { | |
892 | DisasCompare cmp; | |
893 | arm_test_cc(&cmp, cc); | |
894 | arm_jump_cc(&cmp, label); | |
895 | arm_free_cc(&cmp); | |
d9ba4830 | 896 | } |
2c0262af | 897 | |
b1d8e52e | 898 | static const uint8_t table_logic_cc[16] = { |
2c0262af FB |
899 | 1, /* and */ |
900 | 1, /* xor */ | |
901 | 0, /* sub */ | |
902 | 0, /* rsb */ | |
903 | 0, /* add */ | |
904 | 0, /* adc */ | |
905 | 0, /* sbc */ | |
906 | 0, /* rsc */ | |
907 | 1, /* andl */ | |
908 | 1, /* xorl */ | |
909 | 0, /* cmp */ | |
910 | 0, /* cmn */ | |
911 | 1, /* orr */ | |
912 | 1, /* mov */ | |
913 | 1, /* bic */ | |
914 | 1, /* mvn */ | |
915 | }; | |
3b46e624 | 916 | |
4d5e8c96 PM |
917 | static inline void gen_set_condexec(DisasContext *s) |
918 | { | |
919 | if (s->condexec_mask) { | |
920 | uint32_t val = (s->condexec_cond << 4) | (s->condexec_mask >> 1); | |
921 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
922 | tcg_gen_movi_i32(tmp, val); | |
923 | store_cpu_field(tmp, condexec_bits); | |
924 | } | |
925 | } | |
926 | ||
927 | static inline void gen_set_pc_im(DisasContext *s, target_ulong val) | |
928 | { | |
929 | tcg_gen_movi_i32(cpu_R[15], val); | |
930 | } | |
931 | ||
d9ba4830 PB |
932 | /* Set PC and Thumb state from an immediate address. */ |
933 | static inline void gen_bx_im(DisasContext *s, uint32_t addr) | |
99c475ab | 934 | { |
39d5492a | 935 | TCGv_i32 tmp; |
99c475ab | 936 | |
dcba3a8d | 937 | s->base.is_jmp = DISAS_JUMP; |
d9ba4830 | 938 | if (s->thumb != (addr & 1)) { |
7d1b0095 | 939 | tmp = tcg_temp_new_i32(); |
d9ba4830 | 940 | tcg_gen_movi_i32(tmp, addr & 1); |
0ecb72a5 | 941 | tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUARMState, thumb)); |
7d1b0095 | 942 | tcg_temp_free_i32(tmp); |
d9ba4830 | 943 | } |
155c3eac | 944 | tcg_gen_movi_i32(cpu_R[15], addr & ~1); |
d9ba4830 PB |
945 | } |
946 | ||
947 | /* Set PC and Thumb state from var. var is marked as dead. */ | |
39d5492a | 948 | static inline void gen_bx(DisasContext *s, TCGv_i32 var) |
d9ba4830 | 949 | { |
dcba3a8d | 950 | s->base.is_jmp = DISAS_JUMP; |
155c3eac FN |
951 | tcg_gen_andi_i32(cpu_R[15], var, ~1); |
952 | tcg_gen_andi_i32(var, var, 1); | |
953 | store_cpu_field(var, thumb); | |
d9ba4830 PB |
954 | } |
955 | ||
3bb8a96f PM |
956 | /* Set PC and Thumb state from var. var is marked as dead. |
957 | * For M-profile CPUs, include logic to detect exception-return | |
958 | * branches and handle them. This is needed for Thumb POP/LDM to PC, LDR to PC, | |
959 | * and BX reg, and no others, and happens only for code in Handler mode. | |
960 | */ | |
961 | static inline void gen_bx_excret(DisasContext *s, TCGv_i32 var) | |
962 | { | |
963 | /* Generate the same code here as for a simple bx, but flag via | |
dcba3a8d | 964 | * s->base.is_jmp that we need to do the rest of the work later. |
3bb8a96f PM |
965 | */ |
966 | gen_bx(s, var); | |
d02a8698 PM |
967 | if (arm_dc_feature(s, ARM_FEATURE_M_SECURITY) || |
968 | (s->v7m_handler_mode && arm_dc_feature(s, ARM_FEATURE_M))) { | |
dcba3a8d | 969 | s->base.is_jmp = DISAS_BX_EXCRET; |
3bb8a96f PM |
970 | } |
971 | } | |
972 | ||
973 | static inline void gen_bx_excret_final_code(DisasContext *s) | |
974 | { | |
975 | /* Generate the code to finish possible exception return and end the TB */ | |
976 | TCGLabel *excret_label = gen_new_label(); | |
d02a8698 PM |
977 | uint32_t min_magic; |
978 | ||
979 | if (arm_dc_feature(s, ARM_FEATURE_M_SECURITY)) { | |
980 | /* Covers FNC_RETURN and EXC_RETURN magic */ | |
981 | min_magic = FNC_RETURN_MIN_MAGIC; | |
982 | } else { | |
983 | /* EXC_RETURN magic only */ | |
984 | min_magic = EXC_RETURN_MIN_MAGIC; | |
985 | } | |
3bb8a96f PM |
986 | |
987 | /* Is the new PC value in the magic range indicating exception return? */ | |
d02a8698 | 988 | tcg_gen_brcondi_i32(TCG_COND_GEU, cpu_R[15], min_magic, excret_label); |
3bb8a96f PM |
989 | /* No: end the TB as we would for a DISAS_JMP */ |
990 | if (is_singlestepping(s)) { | |
991 | gen_singlestep_exception(s); | |
992 | } else { | |
07ea28b4 | 993 | tcg_gen_exit_tb(NULL, 0); |
3bb8a96f PM |
994 | } |
995 | gen_set_label(excret_label); | |
996 | /* Yes: this is an exception return. | |
997 | * At this point in runtime env->regs[15] and env->thumb will hold | |
998 | * the exception-return magic number, which do_v7m_exception_exit() | |
999 | * will read. Nothing else will be able to see those values because | |
1000 | * the cpu-exec main loop guarantees that we will always go straight | |
1001 | * from raising the exception to the exception-handling code. | |
1002 | * | |
1003 | * gen_ss_advance(s) does nothing on M profile currently but | |
1004 | * calling it is conceptually the right thing as we have executed | |
1005 | * this instruction (compare SWI, HVC, SMC handling). | |
1006 | */ | |
1007 | gen_ss_advance(s); | |
1008 | gen_exception_internal(EXCP_EXCEPTION_EXIT); | |
1009 | } | |
1010 | ||
fb602cb7 PM |
1011 | static inline void gen_bxns(DisasContext *s, int rm) |
1012 | { | |
1013 | TCGv_i32 var = load_reg(s, rm); | |
1014 | ||
1015 | /* The bxns helper may raise an EXCEPTION_EXIT exception, so in theory | |
1016 | * we need to sync state before calling it, but: | |
1017 | * - we don't need to do gen_set_pc_im() because the bxns helper will | |
1018 | * always set the PC itself | |
1019 | * - we don't need to do gen_set_condexec() because BXNS is UNPREDICTABLE | |
1020 | * unless it's outside an IT block or the last insn in an IT block, | |
1021 | * so we know that condexec == 0 (already set at the top of the TB) | |
1022 | * is correct in the non-UNPREDICTABLE cases, and we can choose | |
1023 | * "zeroes the IT bits" as our UNPREDICTABLE behaviour otherwise. | |
1024 | */ | |
1025 | gen_helper_v7m_bxns(cpu_env, var); | |
1026 | tcg_temp_free_i32(var); | |
ef475b5d | 1027 | s->base.is_jmp = DISAS_EXIT; |
fb602cb7 PM |
1028 | } |
1029 | ||
3e3fa230 PM |
1030 | static inline void gen_blxns(DisasContext *s, int rm) |
1031 | { | |
1032 | TCGv_i32 var = load_reg(s, rm); | |
1033 | ||
1034 | /* We don't need to sync condexec state, for the same reason as bxns. | |
1035 | * We do however need to set the PC, because the blxns helper reads it. | |
1036 | * The blxns helper may throw an exception. | |
1037 | */ | |
1038 | gen_set_pc_im(s, s->pc); | |
1039 | gen_helper_v7m_blxns(cpu_env, var); | |
1040 | tcg_temp_free_i32(var); | |
1041 | s->base.is_jmp = DISAS_EXIT; | |
1042 | } | |
1043 | ||
21aeb343 JR |
1044 | /* Variant of store_reg which uses branch&exchange logic when storing |
1045 | to r15 in ARM architecture v7 and above. The source must be a temporary | |
1046 | and will be marked as dead. */ | |
7dcc1f89 | 1047 | static inline void store_reg_bx(DisasContext *s, int reg, TCGv_i32 var) |
21aeb343 JR |
1048 | { |
1049 | if (reg == 15 && ENABLE_ARCH_7) { | |
1050 | gen_bx(s, var); | |
1051 | } else { | |
1052 | store_reg(s, reg, var); | |
1053 | } | |
1054 | } | |
1055 | ||
be5e7a76 DES |
1056 | /* Variant of store_reg which uses branch&exchange logic when storing |
1057 | * to r15 in ARM architecture v5T and above. This is used for storing | |
1058 | * the results of a LDR/LDM/POP into r15, and corresponds to the cases | |
1059 | * in the ARM ARM which use the LoadWritePC() pseudocode function. */ | |
7dcc1f89 | 1060 | static inline void store_reg_from_load(DisasContext *s, int reg, TCGv_i32 var) |
be5e7a76 DES |
1061 | { |
1062 | if (reg == 15 && ENABLE_ARCH_5) { | |
3bb8a96f | 1063 | gen_bx_excret(s, var); |
be5e7a76 DES |
1064 | } else { |
1065 | store_reg(s, reg, var); | |
1066 | } | |
1067 | } | |
1068 | ||
e334bd31 PB |
1069 | #ifdef CONFIG_USER_ONLY |
1070 | #define IS_USER_ONLY 1 | |
1071 | #else | |
1072 | #define IS_USER_ONLY 0 | |
1073 | #endif | |
1074 | ||
08307563 PM |
1075 | /* Abstractions of "generate code to do a guest load/store for |
1076 | * AArch32", where a vaddr is always 32 bits (and is zero | |
1077 | * extended if we're a 64 bit core) and data is also | |
1078 | * 32 bits unless specifically doing a 64 bit access. | |
1079 | * These functions work like tcg_gen_qemu_{ld,st}* except | |
09f78135 | 1080 | * that the address argument is TCGv_i32 rather than TCGv. |
08307563 | 1081 | */ |
08307563 | 1082 | |
7f5616f5 | 1083 | static inline TCGv gen_aa32_addr(DisasContext *s, TCGv_i32 a32, TCGMemOp op) |
08307563 | 1084 | { |
7f5616f5 RH |
1085 | TCGv addr = tcg_temp_new(); |
1086 | tcg_gen_extu_i32_tl(addr, a32); | |
1087 | ||
e334bd31 | 1088 | /* Not needed for user-mode BE32, where we use MO_BE instead. */ |
7f5616f5 RH |
1089 | if (!IS_USER_ONLY && s->sctlr_b && (op & MO_SIZE) < MO_32) { |
1090 | tcg_gen_xori_tl(addr, addr, 4 - (1 << (op & MO_SIZE))); | |
e334bd31 | 1091 | } |
7f5616f5 | 1092 | return addr; |
08307563 PM |
1093 | } |
1094 | ||
7f5616f5 RH |
1095 | static void gen_aa32_ld_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32, |
1096 | int index, TCGMemOp opc) | |
08307563 | 1097 | { |
2aeba0d0 JS |
1098 | TCGv addr; |
1099 | ||
1100 | if (arm_dc_feature(s, ARM_FEATURE_M) && | |
1101 | !arm_dc_feature(s, ARM_FEATURE_M_MAIN)) { | |
1102 | opc |= MO_ALIGN; | |
1103 | } | |
1104 | ||
1105 | addr = gen_aa32_addr(s, a32, opc); | |
7f5616f5 RH |
1106 | tcg_gen_qemu_ld_i32(val, addr, index, opc); |
1107 | tcg_temp_free(addr); | |
08307563 PM |
1108 | } |
1109 | ||
7f5616f5 RH |
1110 | static void gen_aa32_st_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32, |
1111 | int index, TCGMemOp opc) | |
1112 | { | |
2aeba0d0 JS |
1113 | TCGv addr; |
1114 | ||
1115 | if (arm_dc_feature(s, ARM_FEATURE_M) && | |
1116 | !arm_dc_feature(s, ARM_FEATURE_M_MAIN)) { | |
1117 | opc |= MO_ALIGN; | |
1118 | } | |
1119 | ||
1120 | addr = gen_aa32_addr(s, a32, opc); | |
7f5616f5 RH |
1121 | tcg_gen_qemu_st_i32(val, addr, index, opc); |
1122 | tcg_temp_free(addr); | |
1123 | } | |
08307563 | 1124 | |
7f5616f5 | 1125 | #define DO_GEN_LD(SUFF, OPC) \ |
12dcc321 | 1126 | static inline void gen_aa32_ld##SUFF(DisasContext *s, TCGv_i32 val, \ |
7f5616f5 | 1127 | TCGv_i32 a32, int index) \ |
08307563 | 1128 | { \ |
7f5616f5 | 1129 | gen_aa32_ld_i32(s, val, a32, index, OPC | s->be_data); \ |
9bb6558a PM |
1130 | } \ |
1131 | static inline void gen_aa32_ld##SUFF##_iss(DisasContext *s, \ | |
1132 | TCGv_i32 val, \ | |
1133 | TCGv_i32 a32, int index, \ | |
1134 | ISSInfo issinfo) \ | |
1135 | { \ | |
1136 | gen_aa32_ld##SUFF(s, val, a32, index); \ | |
1137 | disas_set_da_iss(s, OPC, issinfo); \ | |
08307563 PM |
1138 | } |
1139 | ||
7f5616f5 | 1140 | #define DO_GEN_ST(SUFF, OPC) \ |
12dcc321 | 1141 | static inline void gen_aa32_st##SUFF(DisasContext *s, TCGv_i32 val, \ |
7f5616f5 | 1142 | TCGv_i32 a32, int index) \ |
08307563 | 1143 | { \ |
7f5616f5 | 1144 | gen_aa32_st_i32(s, val, a32, index, OPC | s->be_data); \ |
9bb6558a PM |
1145 | } \ |
1146 | static inline void gen_aa32_st##SUFF##_iss(DisasContext *s, \ | |
1147 | TCGv_i32 val, \ | |
1148 | TCGv_i32 a32, int index, \ | |
1149 | ISSInfo issinfo) \ | |
1150 | { \ | |
1151 | gen_aa32_st##SUFF(s, val, a32, index); \ | |
1152 | disas_set_da_iss(s, OPC, issinfo | ISSIsWrite); \ | |
08307563 PM |
1153 | } |
1154 | ||
7f5616f5 | 1155 | static inline void gen_aa32_frob64(DisasContext *s, TCGv_i64 val) |
08307563 | 1156 | { |
e334bd31 PB |
1157 | /* Not needed for user-mode BE32, where we use MO_BE instead. */ |
1158 | if (!IS_USER_ONLY && s->sctlr_b) { | |
1159 | tcg_gen_rotri_i64(val, val, 32); | |
1160 | } | |
08307563 PM |
1161 | } |
1162 | ||
7f5616f5 RH |
1163 | static void gen_aa32_ld_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32, |
1164 | int index, TCGMemOp opc) | |
08307563 | 1165 | { |
7f5616f5 RH |
1166 | TCGv addr = gen_aa32_addr(s, a32, opc); |
1167 | tcg_gen_qemu_ld_i64(val, addr, index, opc); | |
1168 | gen_aa32_frob64(s, val); | |
1169 | tcg_temp_free(addr); | |
1170 | } | |
1171 | ||
1172 | static inline void gen_aa32_ld64(DisasContext *s, TCGv_i64 val, | |
1173 | TCGv_i32 a32, int index) | |
1174 | { | |
1175 | gen_aa32_ld_i64(s, val, a32, index, MO_Q | s->be_data); | |
1176 | } | |
1177 | ||
1178 | static void gen_aa32_st_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32, | |
1179 | int index, TCGMemOp opc) | |
1180 | { | |
1181 | TCGv addr = gen_aa32_addr(s, a32, opc); | |
e334bd31 PB |
1182 | |
1183 | /* Not needed for user-mode BE32, where we use MO_BE instead. */ | |
1184 | if (!IS_USER_ONLY && s->sctlr_b) { | |
7f5616f5 | 1185 | TCGv_i64 tmp = tcg_temp_new_i64(); |
e334bd31 | 1186 | tcg_gen_rotri_i64(tmp, val, 32); |
7f5616f5 RH |
1187 | tcg_gen_qemu_st_i64(tmp, addr, index, opc); |
1188 | tcg_temp_free_i64(tmp); | |
e334bd31 | 1189 | } else { |
7f5616f5 | 1190 | tcg_gen_qemu_st_i64(val, addr, index, opc); |
e334bd31 | 1191 | } |
7f5616f5 | 1192 | tcg_temp_free(addr); |
08307563 PM |
1193 | } |
1194 | ||
7f5616f5 RH |
1195 | static inline void gen_aa32_st64(DisasContext *s, TCGv_i64 val, |
1196 | TCGv_i32 a32, int index) | |
1197 | { | |
1198 | gen_aa32_st_i64(s, val, a32, index, MO_Q | s->be_data); | |
1199 | } | |
08307563 | 1200 | |
7f5616f5 RH |
1201 | DO_GEN_LD(8s, MO_SB) |
1202 | DO_GEN_LD(8u, MO_UB) | |
1203 | DO_GEN_LD(16s, MO_SW) | |
1204 | DO_GEN_LD(16u, MO_UW) | |
1205 | DO_GEN_LD(32u, MO_UL) | |
7f5616f5 RH |
1206 | DO_GEN_ST(8, MO_UB) |
1207 | DO_GEN_ST(16, MO_UW) | |
1208 | DO_GEN_ST(32, MO_UL) | |
08307563 | 1209 | |
37e6456e PM |
1210 | static inline void gen_hvc(DisasContext *s, int imm16) |
1211 | { | |
1212 | /* The pre HVC helper handles cases when HVC gets trapped | |
1213 | * as an undefined insn by runtime configuration (ie before | |
1214 | * the insn really executes). | |
1215 | */ | |
1216 | gen_set_pc_im(s, s->pc - 4); | |
1217 | gen_helper_pre_hvc(cpu_env); | |
1218 | /* Otherwise we will treat this as a real exception which | |
1219 | * happens after execution of the insn. (The distinction matters | |
1220 | * for the PC value reported to the exception handler and also | |
1221 | * for single stepping.) | |
1222 | */ | |
1223 | s->svc_imm = imm16; | |
1224 | gen_set_pc_im(s, s->pc); | |
dcba3a8d | 1225 | s->base.is_jmp = DISAS_HVC; |
37e6456e PM |
1226 | } |
1227 | ||
1228 | static inline void gen_smc(DisasContext *s) | |
1229 | { | |
1230 | /* As with HVC, we may take an exception either before or after | |
1231 | * the insn executes. | |
1232 | */ | |
1233 | TCGv_i32 tmp; | |
1234 | ||
1235 | gen_set_pc_im(s, s->pc - 4); | |
1236 | tmp = tcg_const_i32(syn_aa32_smc()); | |
1237 | gen_helper_pre_smc(cpu_env, tmp); | |
1238 | tcg_temp_free_i32(tmp); | |
1239 | gen_set_pc_im(s, s->pc); | |
dcba3a8d | 1240 | s->base.is_jmp = DISAS_SMC; |
37e6456e PM |
1241 | } |
1242 | ||
d4a2dc67 PM |
1243 | static void gen_exception_internal_insn(DisasContext *s, int offset, int excp) |
1244 | { | |
1245 | gen_set_condexec(s); | |
1246 | gen_set_pc_im(s, s->pc - offset); | |
1247 | gen_exception_internal(excp); | |
dcba3a8d | 1248 | s->base.is_jmp = DISAS_NORETURN; |
d4a2dc67 PM |
1249 | } |
1250 | ||
73710361 GB |
1251 | static void gen_exception_insn(DisasContext *s, int offset, int excp, |
1252 | int syn, uint32_t target_el) | |
d4a2dc67 PM |
1253 | { |
1254 | gen_set_condexec(s); | |
1255 | gen_set_pc_im(s, s->pc - offset); | |
73710361 | 1256 | gen_exception(excp, syn, target_el); |
dcba3a8d | 1257 | s->base.is_jmp = DISAS_NORETURN; |
d4a2dc67 PM |
1258 | } |
1259 | ||
c900a2e6 PM |
1260 | static void gen_exception_bkpt_insn(DisasContext *s, int offset, uint32_t syn) |
1261 | { | |
1262 | TCGv_i32 tcg_syn; | |
1263 | ||
1264 | gen_set_condexec(s); | |
1265 | gen_set_pc_im(s, s->pc - offset); | |
1266 | tcg_syn = tcg_const_i32(syn); | |
1267 | gen_helper_exception_bkpt_insn(cpu_env, tcg_syn); | |
1268 | tcg_temp_free_i32(tcg_syn); | |
1269 | s->base.is_jmp = DISAS_NORETURN; | |
1270 | } | |
1271 | ||
b5ff1b31 FB |
1272 | /* Force a TB lookup after an instruction that changes the CPU state. */ |
1273 | static inline void gen_lookup_tb(DisasContext *s) | |
1274 | { | |
a6445c52 | 1275 | tcg_gen_movi_i32(cpu_R[15], s->pc & ~1); |
dcba3a8d | 1276 | s->base.is_jmp = DISAS_EXIT; |
b5ff1b31 FB |
1277 | } |
1278 | ||
19a6e31c PM |
1279 | static inline void gen_hlt(DisasContext *s, int imm) |
1280 | { | |
1281 | /* HLT. This has two purposes. | |
1282 | * Architecturally, it is an external halting debug instruction. | |
1283 | * Since QEMU doesn't implement external debug, we treat this as | |
1284 | * it is required for halting debug disabled: it will UNDEF. | |
1285 | * Secondly, "HLT 0x3C" is a T32 semihosting trap instruction, | |
1286 | * and "HLT 0xF000" is an A32 semihosting syscall. These traps | |
1287 | * must trigger semihosting even for ARMv7 and earlier, where | |
1288 | * HLT was an undefined encoding. | |
1289 | * In system mode, we don't allow userspace access to | |
1290 | * semihosting, to provide some semblance of security | |
1291 | * (and for consistency with our 32-bit semihosting). | |
1292 | */ | |
1293 | if (semihosting_enabled() && | |
1294 | #ifndef CONFIG_USER_ONLY | |
1295 | s->current_el != 0 && | |
1296 | #endif | |
1297 | (imm == (s->thumb ? 0x3c : 0xf000))) { | |
1298 | gen_exception_internal_insn(s, 0, EXCP_SEMIHOST); | |
1299 | return; | |
1300 | } | |
1301 | ||
1302 | gen_exception_insn(s, s->thumb ? 2 : 4, EXCP_UDEF, syn_uncategorized(), | |
1303 | default_exception_el(s)); | |
1304 | } | |
1305 | ||
b0109805 | 1306 | static inline void gen_add_data_offset(DisasContext *s, unsigned int insn, |
39d5492a | 1307 | TCGv_i32 var) |
2c0262af | 1308 | { |
1e8d4eec | 1309 | int val, rm, shift, shiftop; |
39d5492a | 1310 | TCGv_i32 offset; |
2c0262af FB |
1311 | |
1312 | if (!(insn & (1 << 25))) { | |
1313 | /* immediate */ | |
1314 | val = insn & 0xfff; | |
1315 | if (!(insn & (1 << 23))) | |
1316 | val = -val; | |
537730b9 | 1317 | if (val != 0) |
b0109805 | 1318 | tcg_gen_addi_i32(var, var, val); |
2c0262af FB |
1319 | } else { |
1320 | /* shift/register */ | |
1321 | rm = (insn) & 0xf; | |
1322 | shift = (insn >> 7) & 0x1f; | |
1e8d4eec | 1323 | shiftop = (insn >> 5) & 3; |
b26eefb6 | 1324 | offset = load_reg(s, rm); |
9a119ff6 | 1325 | gen_arm_shift_im(offset, shiftop, shift, 0); |
2c0262af | 1326 | if (!(insn & (1 << 23))) |
b0109805 | 1327 | tcg_gen_sub_i32(var, var, offset); |
2c0262af | 1328 | else |
b0109805 | 1329 | tcg_gen_add_i32(var, var, offset); |
7d1b0095 | 1330 | tcg_temp_free_i32(offset); |
2c0262af FB |
1331 | } |
1332 | } | |
1333 | ||
191f9a93 | 1334 | static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn, |
39d5492a | 1335 | int extra, TCGv_i32 var) |
2c0262af FB |
1336 | { |
1337 | int val, rm; | |
39d5492a | 1338 | TCGv_i32 offset; |
3b46e624 | 1339 | |
2c0262af FB |
1340 | if (insn & (1 << 22)) { |
1341 | /* immediate */ | |
1342 | val = (insn & 0xf) | ((insn >> 4) & 0xf0); | |
1343 | if (!(insn & (1 << 23))) | |
1344 | val = -val; | |
18acad92 | 1345 | val += extra; |
537730b9 | 1346 | if (val != 0) |
b0109805 | 1347 | tcg_gen_addi_i32(var, var, val); |
2c0262af FB |
1348 | } else { |
1349 | /* register */ | |
191f9a93 | 1350 | if (extra) |
b0109805 | 1351 | tcg_gen_addi_i32(var, var, extra); |
2c0262af | 1352 | rm = (insn) & 0xf; |
b26eefb6 | 1353 | offset = load_reg(s, rm); |
2c0262af | 1354 | if (!(insn & (1 << 23))) |
b0109805 | 1355 | tcg_gen_sub_i32(var, var, offset); |
2c0262af | 1356 | else |
b0109805 | 1357 | tcg_gen_add_i32(var, var, offset); |
7d1b0095 | 1358 | tcg_temp_free_i32(offset); |
2c0262af FB |
1359 | } |
1360 | } | |
1361 | ||
5aaebd13 PM |
1362 | static TCGv_ptr get_fpstatus_ptr(int neon) |
1363 | { | |
1364 | TCGv_ptr statusptr = tcg_temp_new_ptr(); | |
1365 | int offset; | |
1366 | if (neon) { | |
0ecb72a5 | 1367 | offset = offsetof(CPUARMState, vfp.standard_fp_status); |
5aaebd13 | 1368 | } else { |
0ecb72a5 | 1369 | offset = offsetof(CPUARMState, vfp.fp_status); |
5aaebd13 PM |
1370 | } |
1371 | tcg_gen_addi_ptr(statusptr, cpu_env, offset); | |
1372 | return statusptr; | |
1373 | } | |
1374 | ||
c39c2b90 | 1375 | static inline long vfp_reg_offset(bool dp, unsigned reg) |
8e96005d | 1376 | { |
9a2b5256 | 1377 | if (dp) { |
c39c2b90 | 1378 | return offsetof(CPUARMState, vfp.zregs[reg >> 1].d[reg & 1]); |
8e96005d | 1379 | } else { |
c39c2b90 | 1380 | long ofs = offsetof(CPUARMState, vfp.zregs[reg >> 2].d[(reg >> 1) & 1]); |
9a2b5256 RH |
1381 | if (reg & 1) { |
1382 | ofs += offsetof(CPU_DoubleU, l.upper); | |
1383 | } else { | |
1384 | ofs += offsetof(CPU_DoubleU, l.lower); | |
1385 | } | |
1386 | return ofs; | |
8e96005d FB |
1387 | } |
1388 | } | |
9ee6e8bb PB |
1389 | |
1390 | /* Return the offset of a 32-bit piece of a NEON register. | |
1391 | zero is the least significant end of the register. */ | |
1392 | static inline long | |
1393 | neon_reg_offset (int reg, int n) | |
1394 | { | |
1395 | int sreg; | |
1396 | sreg = reg * 2 + n; | |
1397 | return vfp_reg_offset(0, sreg); | |
1398 | } | |
1399 | ||
32f91fb7 RH |
1400 | /* Return the offset of a 2**SIZE piece of a NEON register, at index ELE, |
1401 | * where 0 is the least significant end of the register. | |
1402 | */ | |
1403 | static inline long | |
1404 | neon_element_offset(int reg, int element, TCGMemOp size) | |
1405 | { | |
1406 | int element_size = 1 << size; | |
1407 | int ofs = element * element_size; | |
1408 | #ifdef HOST_WORDS_BIGENDIAN | |
1409 | /* Calculate the offset assuming fully little-endian, | |
1410 | * then XOR to account for the order of the 8-byte units. | |
1411 | */ | |
1412 | if (element_size < 8) { | |
1413 | ofs ^= 8 - element_size; | |
1414 | } | |
1415 | #endif | |
1416 | return neon_reg_offset(reg, 0) + ofs; | |
1417 | } | |
1418 | ||
39d5492a | 1419 | static TCGv_i32 neon_load_reg(int reg, int pass) |
8f8e3aa4 | 1420 | { |
39d5492a | 1421 | TCGv_i32 tmp = tcg_temp_new_i32(); |
8f8e3aa4 PB |
1422 | tcg_gen_ld_i32(tmp, cpu_env, neon_reg_offset(reg, pass)); |
1423 | return tmp; | |
1424 | } | |
1425 | ||
2d6ac920 RH |
1426 | static void neon_load_element(TCGv_i32 var, int reg, int ele, TCGMemOp mop) |
1427 | { | |
1428 | long offset = neon_element_offset(reg, ele, mop & MO_SIZE); | |
1429 | ||
1430 | switch (mop) { | |
1431 | case MO_UB: | |
1432 | tcg_gen_ld8u_i32(var, cpu_env, offset); | |
1433 | break; | |
1434 | case MO_UW: | |
1435 | tcg_gen_ld16u_i32(var, cpu_env, offset); | |
1436 | break; | |
1437 | case MO_UL: | |
1438 | tcg_gen_ld_i32(var, cpu_env, offset); | |
1439 | break; | |
1440 | default: | |
1441 | g_assert_not_reached(); | |
1442 | } | |
1443 | } | |
1444 | ||
ac55d007 RH |
1445 | static void neon_load_element64(TCGv_i64 var, int reg, int ele, TCGMemOp mop) |
1446 | { | |
1447 | long offset = neon_element_offset(reg, ele, mop & MO_SIZE); | |
1448 | ||
1449 | switch (mop) { | |
1450 | case MO_UB: | |
1451 | tcg_gen_ld8u_i64(var, cpu_env, offset); | |
1452 | break; | |
1453 | case MO_UW: | |
1454 | tcg_gen_ld16u_i64(var, cpu_env, offset); | |
1455 | break; | |
1456 | case MO_UL: | |
1457 | tcg_gen_ld32u_i64(var, cpu_env, offset); | |
1458 | break; | |
1459 | case MO_Q: | |
1460 | tcg_gen_ld_i64(var, cpu_env, offset); | |
1461 | break; | |
1462 | default: | |
1463 | g_assert_not_reached(); | |
1464 | } | |
1465 | } | |
1466 | ||
39d5492a | 1467 | static void neon_store_reg(int reg, int pass, TCGv_i32 var) |
8f8e3aa4 PB |
1468 | { |
1469 | tcg_gen_st_i32(var, cpu_env, neon_reg_offset(reg, pass)); | |
7d1b0095 | 1470 | tcg_temp_free_i32(var); |
8f8e3aa4 PB |
1471 | } |
1472 | ||
2d6ac920 RH |
1473 | static void neon_store_element(int reg, int ele, TCGMemOp size, TCGv_i32 var) |
1474 | { | |
1475 | long offset = neon_element_offset(reg, ele, size); | |
1476 | ||
1477 | switch (size) { | |
1478 | case MO_8: | |
1479 | tcg_gen_st8_i32(var, cpu_env, offset); | |
1480 | break; | |
1481 | case MO_16: | |
1482 | tcg_gen_st16_i32(var, cpu_env, offset); | |
1483 | break; | |
1484 | case MO_32: | |
1485 | tcg_gen_st_i32(var, cpu_env, offset); | |
1486 | break; | |
1487 | default: | |
1488 | g_assert_not_reached(); | |
1489 | } | |
1490 | } | |
1491 | ||
ac55d007 RH |
1492 | static void neon_store_element64(int reg, int ele, TCGMemOp size, TCGv_i64 var) |
1493 | { | |
1494 | long offset = neon_element_offset(reg, ele, size); | |
1495 | ||
1496 | switch (size) { | |
1497 | case MO_8: | |
1498 | tcg_gen_st8_i64(var, cpu_env, offset); | |
1499 | break; | |
1500 | case MO_16: | |
1501 | tcg_gen_st16_i64(var, cpu_env, offset); | |
1502 | break; | |
1503 | case MO_32: | |
1504 | tcg_gen_st32_i64(var, cpu_env, offset); | |
1505 | break; | |
1506 | case MO_64: | |
1507 | tcg_gen_st_i64(var, cpu_env, offset); | |
1508 | break; | |
1509 | default: | |
1510 | g_assert_not_reached(); | |
1511 | } | |
1512 | } | |
1513 | ||
a7812ae4 | 1514 | static inline void neon_load_reg64(TCGv_i64 var, int reg) |
ad69471c PB |
1515 | { |
1516 | tcg_gen_ld_i64(var, cpu_env, vfp_reg_offset(1, reg)); | |
1517 | } | |
1518 | ||
a7812ae4 | 1519 | static inline void neon_store_reg64(TCGv_i64 var, int reg) |
ad69471c PB |
1520 | { |
1521 | tcg_gen_st_i64(var, cpu_env, vfp_reg_offset(1, reg)); | |
1522 | } | |
1523 | ||
160f3b64 PM |
1524 | static inline void neon_load_reg32(TCGv_i32 var, int reg) |
1525 | { | |
1526 | tcg_gen_ld_i32(var, cpu_env, vfp_reg_offset(false, reg)); | |
1527 | } | |
1528 | ||
1529 | static inline void neon_store_reg32(TCGv_i32 var, int reg) | |
1530 | { | |
1531 | tcg_gen_st_i32(var, cpu_env, vfp_reg_offset(false, reg)); | |
1532 | } | |
1533 | ||
1a66ac61 RH |
1534 | static TCGv_ptr vfp_reg_ptr(bool dp, int reg) |
1535 | { | |
1536 | TCGv_ptr ret = tcg_temp_new_ptr(); | |
1537 | tcg_gen_addi_ptr(ret, cpu_env, vfp_reg_offset(dp, reg)); | |
1538 | return ret; | |
1539 | } | |
1540 | ||
d00584b7 | 1541 | #define ARM_CP_RW_BIT (1 << 20) |
18c9b560 | 1542 | |
78e138bc PM |
1543 | /* Include the VFP decoder */ |
1544 | #include "translate-vfp.inc.c" | |
1545 | ||
a7812ae4 | 1546 | static inline void iwmmxt_load_reg(TCGv_i64 var, int reg) |
e677137d | 1547 | { |
0ecb72a5 | 1548 | tcg_gen_ld_i64(var, cpu_env, offsetof(CPUARMState, iwmmxt.regs[reg])); |
e677137d PB |
1549 | } |
1550 | ||
a7812ae4 | 1551 | static inline void iwmmxt_store_reg(TCGv_i64 var, int reg) |
e677137d | 1552 | { |
0ecb72a5 | 1553 | tcg_gen_st_i64(var, cpu_env, offsetof(CPUARMState, iwmmxt.regs[reg])); |
e677137d PB |
1554 | } |
1555 | ||
39d5492a | 1556 | static inline TCGv_i32 iwmmxt_load_creg(int reg) |
e677137d | 1557 | { |
39d5492a | 1558 | TCGv_i32 var = tcg_temp_new_i32(); |
0ecb72a5 | 1559 | tcg_gen_ld_i32(var, cpu_env, offsetof(CPUARMState, iwmmxt.cregs[reg])); |
da6b5335 | 1560 | return var; |
e677137d PB |
1561 | } |
1562 | ||
39d5492a | 1563 | static inline void iwmmxt_store_creg(int reg, TCGv_i32 var) |
e677137d | 1564 | { |
0ecb72a5 | 1565 | tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, iwmmxt.cregs[reg])); |
7d1b0095 | 1566 | tcg_temp_free_i32(var); |
e677137d PB |
1567 | } |
1568 | ||
1569 | static inline void gen_op_iwmmxt_movq_wRn_M0(int rn) | |
1570 | { | |
1571 | iwmmxt_store_reg(cpu_M0, rn); | |
1572 | } | |
1573 | ||
1574 | static inline void gen_op_iwmmxt_movq_M0_wRn(int rn) | |
1575 | { | |
1576 | iwmmxt_load_reg(cpu_M0, rn); | |
1577 | } | |
1578 | ||
1579 | static inline void gen_op_iwmmxt_orq_M0_wRn(int rn) | |
1580 | { | |
1581 | iwmmxt_load_reg(cpu_V1, rn); | |
1582 | tcg_gen_or_i64(cpu_M0, cpu_M0, cpu_V1); | |
1583 | } | |
1584 | ||
1585 | static inline void gen_op_iwmmxt_andq_M0_wRn(int rn) | |
1586 | { | |
1587 | iwmmxt_load_reg(cpu_V1, rn); | |
1588 | tcg_gen_and_i64(cpu_M0, cpu_M0, cpu_V1); | |
1589 | } | |
1590 | ||
1591 | static inline void gen_op_iwmmxt_xorq_M0_wRn(int rn) | |
1592 | { | |
1593 | iwmmxt_load_reg(cpu_V1, rn); | |
1594 | tcg_gen_xor_i64(cpu_M0, cpu_M0, cpu_V1); | |
1595 | } | |
1596 | ||
1597 | #define IWMMXT_OP(name) \ | |
1598 | static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ | |
1599 | { \ | |
1600 | iwmmxt_load_reg(cpu_V1, rn); \ | |
1601 | gen_helper_iwmmxt_##name(cpu_M0, cpu_M0, cpu_V1); \ | |
1602 | } | |
1603 | ||
477955bd PM |
1604 | #define IWMMXT_OP_ENV(name) \ |
1605 | static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ | |
1606 | { \ | |
1607 | iwmmxt_load_reg(cpu_V1, rn); \ | |
1608 | gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0, cpu_V1); \ | |
1609 | } | |
1610 | ||
1611 | #define IWMMXT_OP_ENV_SIZE(name) \ | |
1612 | IWMMXT_OP_ENV(name##b) \ | |
1613 | IWMMXT_OP_ENV(name##w) \ | |
1614 | IWMMXT_OP_ENV(name##l) | |
e677137d | 1615 | |
477955bd | 1616 | #define IWMMXT_OP_ENV1(name) \ |
e677137d PB |
1617 | static inline void gen_op_iwmmxt_##name##_M0(void) \ |
1618 | { \ | |
477955bd | 1619 | gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0); \ |
e677137d PB |
1620 | } |
1621 | ||
1622 | IWMMXT_OP(maddsq) | |
1623 | IWMMXT_OP(madduq) | |
1624 | IWMMXT_OP(sadb) | |
1625 | IWMMXT_OP(sadw) | |
1626 | IWMMXT_OP(mulslw) | |
1627 | IWMMXT_OP(mulshw) | |
1628 | IWMMXT_OP(mululw) | |
1629 | IWMMXT_OP(muluhw) | |
1630 | IWMMXT_OP(macsw) | |
1631 | IWMMXT_OP(macuw) | |
1632 | ||
477955bd PM |
1633 | IWMMXT_OP_ENV_SIZE(unpackl) |
1634 | IWMMXT_OP_ENV_SIZE(unpackh) | |
1635 | ||
1636 | IWMMXT_OP_ENV1(unpacklub) | |
1637 | IWMMXT_OP_ENV1(unpackluw) | |
1638 | IWMMXT_OP_ENV1(unpacklul) | |
1639 | IWMMXT_OP_ENV1(unpackhub) | |
1640 | IWMMXT_OP_ENV1(unpackhuw) | |
1641 | IWMMXT_OP_ENV1(unpackhul) | |
1642 | IWMMXT_OP_ENV1(unpacklsb) | |
1643 | IWMMXT_OP_ENV1(unpacklsw) | |
1644 | IWMMXT_OP_ENV1(unpacklsl) | |
1645 | IWMMXT_OP_ENV1(unpackhsb) | |
1646 | IWMMXT_OP_ENV1(unpackhsw) | |
1647 | IWMMXT_OP_ENV1(unpackhsl) | |
1648 | ||
1649 | IWMMXT_OP_ENV_SIZE(cmpeq) | |
1650 | IWMMXT_OP_ENV_SIZE(cmpgtu) | |
1651 | IWMMXT_OP_ENV_SIZE(cmpgts) | |
1652 | ||
1653 | IWMMXT_OP_ENV_SIZE(mins) | |
1654 | IWMMXT_OP_ENV_SIZE(minu) | |
1655 | IWMMXT_OP_ENV_SIZE(maxs) | |
1656 | IWMMXT_OP_ENV_SIZE(maxu) | |
1657 | ||
1658 | IWMMXT_OP_ENV_SIZE(subn) | |
1659 | IWMMXT_OP_ENV_SIZE(addn) | |
1660 | IWMMXT_OP_ENV_SIZE(subu) | |
1661 | IWMMXT_OP_ENV_SIZE(addu) | |
1662 | IWMMXT_OP_ENV_SIZE(subs) | |
1663 | IWMMXT_OP_ENV_SIZE(adds) | |
1664 | ||
1665 | IWMMXT_OP_ENV(avgb0) | |
1666 | IWMMXT_OP_ENV(avgb1) | |
1667 | IWMMXT_OP_ENV(avgw0) | |
1668 | IWMMXT_OP_ENV(avgw1) | |
e677137d | 1669 | |
477955bd PM |
1670 | IWMMXT_OP_ENV(packuw) |
1671 | IWMMXT_OP_ENV(packul) | |
1672 | IWMMXT_OP_ENV(packuq) | |
1673 | IWMMXT_OP_ENV(packsw) | |
1674 | IWMMXT_OP_ENV(packsl) | |
1675 | IWMMXT_OP_ENV(packsq) | |
e677137d | 1676 | |
e677137d PB |
1677 | static void gen_op_iwmmxt_set_mup(void) |
1678 | { | |
39d5492a | 1679 | TCGv_i32 tmp; |
e677137d PB |
1680 | tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1681 | tcg_gen_ori_i32(tmp, tmp, 2); | |
1682 | store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); | |
1683 | } | |
1684 | ||
1685 | static void gen_op_iwmmxt_set_cup(void) | |
1686 | { | |
39d5492a | 1687 | TCGv_i32 tmp; |
e677137d PB |
1688 | tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1689 | tcg_gen_ori_i32(tmp, tmp, 1); | |
1690 | store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); | |
1691 | } | |
1692 | ||
1693 | static void gen_op_iwmmxt_setpsr_nz(void) | |
1694 | { | |
39d5492a | 1695 | TCGv_i32 tmp = tcg_temp_new_i32(); |
e677137d PB |
1696 | gen_helper_iwmmxt_setpsr_nz(tmp, cpu_M0); |
1697 | store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCASF]); | |
1698 | } | |
1699 | ||
1700 | static inline void gen_op_iwmmxt_addl_M0_wRn(int rn) | |
1701 | { | |
1702 | iwmmxt_load_reg(cpu_V1, rn); | |
86831435 | 1703 | tcg_gen_ext32u_i64(cpu_V1, cpu_V1); |
e677137d PB |
1704 | tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); |
1705 | } | |
1706 | ||
39d5492a PM |
1707 | static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn, |
1708 | TCGv_i32 dest) | |
18c9b560 AZ |
1709 | { |
1710 | int rd; | |
1711 | uint32_t offset; | |
39d5492a | 1712 | TCGv_i32 tmp; |
18c9b560 AZ |
1713 | |
1714 | rd = (insn >> 16) & 0xf; | |
da6b5335 | 1715 | tmp = load_reg(s, rd); |
18c9b560 AZ |
1716 | |
1717 | offset = (insn & 0xff) << ((insn >> 7) & 2); | |
1718 | if (insn & (1 << 24)) { | |
1719 | /* Pre indexed */ | |
1720 | if (insn & (1 << 23)) | |
da6b5335 | 1721 | tcg_gen_addi_i32(tmp, tmp, offset); |
18c9b560 | 1722 | else |
da6b5335 FN |
1723 | tcg_gen_addi_i32(tmp, tmp, -offset); |
1724 | tcg_gen_mov_i32(dest, tmp); | |
18c9b560 | 1725 | if (insn & (1 << 21)) |
da6b5335 FN |
1726 | store_reg(s, rd, tmp); |
1727 | else | |
7d1b0095 | 1728 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1729 | } else if (insn & (1 << 21)) { |
1730 | /* Post indexed */ | |
da6b5335 | 1731 | tcg_gen_mov_i32(dest, tmp); |
18c9b560 | 1732 | if (insn & (1 << 23)) |
da6b5335 | 1733 | tcg_gen_addi_i32(tmp, tmp, offset); |
18c9b560 | 1734 | else |
da6b5335 FN |
1735 | tcg_gen_addi_i32(tmp, tmp, -offset); |
1736 | store_reg(s, rd, tmp); | |
18c9b560 AZ |
1737 | } else if (!(insn & (1 << 23))) |
1738 | return 1; | |
1739 | return 0; | |
1740 | } | |
1741 | ||
39d5492a | 1742 | static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask, TCGv_i32 dest) |
18c9b560 AZ |
1743 | { |
1744 | int rd = (insn >> 0) & 0xf; | |
39d5492a | 1745 | TCGv_i32 tmp; |
18c9b560 | 1746 | |
da6b5335 FN |
1747 | if (insn & (1 << 8)) { |
1748 | if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3) { | |
18c9b560 | 1749 | return 1; |
da6b5335 FN |
1750 | } else { |
1751 | tmp = iwmmxt_load_creg(rd); | |
1752 | } | |
1753 | } else { | |
7d1b0095 | 1754 | tmp = tcg_temp_new_i32(); |
da6b5335 | 1755 | iwmmxt_load_reg(cpu_V0, rd); |
ecc7b3aa | 1756 | tcg_gen_extrl_i64_i32(tmp, cpu_V0); |
da6b5335 FN |
1757 | } |
1758 | tcg_gen_andi_i32(tmp, tmp, mask); | |
1759 | tcg_gen_mov_i32(dest, tmp); | |
7d1b0095 | 1760 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1761 | return 0; |
1762 | } | |
1763 | ||
a1c7273b | 1764 | /* Disassemble an iwMMXt instruction. Returns nonzero if an error occurred |
18c9b560 | 1765 | (ie. an undefined instruction). */ |
7dcc1f89 | 1766 | static int disas_iwmmxt_insn(DisasContext *s, uint32_t insn) |
18c9b560 AZ |
1767 | { |
1768 | int rd, wrd; | |
1769 | int rdhi, rdlo, rd0, rd1, i; | |
39d5492a PM |
1770 | TCGv_i32 addr; |
1771 | TCGv_i32 tmp, tmp2, tmp3; | |
18c9b560 AZ |
1772 | |
1773 | if ((insn & 0x0e000e00) == 0x0c000000) { | |
1774 | if ((insn & 0x0fe00ff0) == 0x0c400000) { | |
1775 | wrd = insn & 0xf; | |
1776 | rdlo = (insn >> 12) & 0xf; | |
1777 | rdhi = (insn >> 16) & 0xf; | |
d00584b7 | 1778 | if (insn & ARM_CP_RW_BIT) { /* TMRRC */ |
da6b5335 | 1779 | iwmmxt_load_reg(cpu_V0, wrd); |
ecc7b3aa | 1780 | tcg_gen_extrl_i64_i32(cpu_R[rdlo], cpu_V0); |
da6b5335 | 1781 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); |
ecc7b3aa | 1782 | tcg_gen_extrl_i64_i32(cpu_R[rdhi], cpu_V0); |
d00584b7 | 1783 | } else { /* TMCRR */ |
da6b5335 FN |
1784 | tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
1785 | iwmmxt_store_reg(cpu_V0, wrd); | |
18c9b560 AZ |
1786 | gen_op_iwmmxt_set_mup(); |
1787 | } | |
1788 | return 0; | |
1789 | } | |
1790 | ||
1791 | wrd = (insn >> 12) & 0xf; | |
7d1b0095 | 1792 | addr = tcg_temp_new_i32(); |
da6b5335 | 1793 | if (gen_iwmmxt_address(s, insn, addr)) { |
7d1b0095 | 1794 | tcg_temp_free_i32(addr); |
18c9b560 | 1795 | return 1; |
da6b5335 | 1796 | } |
18c9b560 | 1797 | if (insn & ARM_CP_RW_BIT) { |
d00584b7 | 1798 | if ((insn >> 28) == 0xf) { /* WLDRW wCx */ |
7d1b0095 | 1799 | tmp = tcg_temp_new_i32(); |
12dcc321 | 1800 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
da6b5335 | 1801 | iwmmxt_store_creg(wrd, tmp); |
18c9b560 | 1802 | } else { |
e677137d PB |
1803 | i = 1; |
1804 | if (insn & (1 << 8)) { | |
d00584b7 | 1805 | if (insn & (1 << 22)) { /* WLDRD */ |
12dcc321 | 1806 | gen_aa32_ld64(s, cpu_M0, addr, get_mem_index(s)); |
e677137d | 1807 | i = 0; |
d00584b7 | 1808 | } else { /* WLDRW wRd */ |
29531141 | 1809 | tmp = tcg_temp_new_i32(); |
12dcc321 | 1810 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
e677137d PB |
1811 | } |
1812 | } else { | |
29531141 | 1813 | tmp = tcg_temp_new_i32(); |
d00584b7 | 1814 | if (insn & (1 << 22)) { /* WLDRH */ |
12dcc321 | 1815 | gen_aa32_ld16u(s, tmp, addr, get_mem_index(s)); |
d00584b7 | 1816 | } else { /* WLDRB */ |
12dcc321 | 1817 | gen_aa32_ld8u(s, tmp, addr, get_mem_index(s)); |
e677137d PB |
1818 | } |
1819 | } | |
1820 | if (i) { | |
1821 | tcg_gen_extu_i32_i64(cpu_M0, tmp); | |
7d1b0095 | 1822 | tcg_temp_free_i32(tmp); |
e677137d | 1823 | } |
18c9b560 AZ |
1824 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
1825 | } | |
1826 | } else { | |
d00584b7 | 1827 | if ((insn >> 28) == 0xf) { /* WSTRW wCx */ |
da6b5335 | 1828 | tmp = iwmmxt_load_creg(wrd); |
12dcc321 | 1829 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
18c9b560 AZ |
1830 | } else { |
1831 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
7d1b0095 | 1832 | tmp = tcg_temp_new_i32(); |
e677137d | 1833 | if (insn & (1 << 8)) { |
d00584b7 | 1834 | if (insn & (1 << 22)) { /* WSTRD */ |
12dcc321 | 1835 | gen_aa32_st64(s, cpu_M0, addr, get_mem_index(s)); |
d00584b7 | 1836 | } else { /* WSTRW wRd */ |
ecc7b3aa | 1837 | tcg_gen_extrl_i64_i32(tmp, cpu_M0); |
12dcc321 | 1838 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
e677137d PB |
1839 | } |
1840 | } else { | |
d00584b7 | 1841 | if (insn & (1 << 22)) { /* WSTRH */ |
ecc7b3aa | 1842 | tcg_gen_extrl_i64_i32(tmp, cpu_M0); |
12dcc321 | 1843 | gen_aa32_st16(s, tmp, addr, get_mem_index(s)); |
d00584b7 | 1844 | } else { /* WSTRB */ |
ecc7b3aa | 1845 | tcg_gen_extrl_i64_i32(tmp, cpu_M0); |
12dcc321 | 1846 | gen_aa32_st8(s, tmp, addr, get_mem_index(s)); |
e677137d PB |
1847 | } |
1848 | } | |
18c9b560 | 1849 | } |
29531141 | 1850 | tcg_temp_free_i32(tmp); |
18c9b560 | 1851 | } |
7d1b0095 | 1852 | tcg_temp_free_i32(addr); |
18c9b560 AZ |
1853 | return 0; |
1854 | } | |
1855 | ||
1856 | if ((insn & 0x0f000000) != 0x0e000000) | |
1857 | return 1; | |
1858 | ||
1859 | switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) { | |
d00584b7 | 1860 | case 0x000: /* WOR */ |
18c9b560 AZ |
1861 | wrd = (insn >> 12) & 0xf; |
1862 | rd0 = (insn >> 0) & 0xf; | |
1863 | rd1 = (insn >> 16) & 0xf; | |
1864 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1865 | gen_op_iwmmxt_orq_M0_wRn(rd1); | |
1866 | gen_op_iwmmxt_setpsr_nz(); | |
1867 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1868 | gen_op_iwmmxt_set_mup(); | |
1869 | gen_op_iwmmxt_set_cup(); | |
1870 | break; | |
d00584b7 | 1871 | case 0x011: /* TMCR */ |
18c9b560 AZ |
1872 | if (insn & 0xf) |
1873 | return 1; | |
1874 | rd = (insn >> 12) & 0xf; | |
1875 | wrd = (insn >> 16) & 0xf; | |
1876 | switch (wrd) { | |
1877 | case ARM_IWMMXT_wCID: | |
1878 | case ARM_IWMMXT_wCASF: | |
1879 | break; | |
1880 | case ARM_IWMMXT_wCon: | |
1881 | gen_op_iwmmxt_set_cup(); | |
1882 | /* Fall through. */ | |
1883 | case ARM_IWMMXT_wCSSF: | |
da6b5335 FN |
1884 | tmp = iwmmxt_load_creg(wrd); |
1885 | tmp2 = load_reg(s, rd); | |
f669df27 | 1886 | tcg_gen_andc_i32(tmp, tmp, tmp2); |
7d1b0095 | 1887 | tcg_temp_free_i32(tmp2); |
da6b5335 | 1888 | iwmmxt_store_creg(wrd, tmp); |
18c9b560 AZ |
1889 | break; |
1890 | case ARM_IWMMXT_wCGR0: | |
1891 | case ARM_IWMMXT_wCGR1: | |
1892 | case ARM_IWMMXT_wCGR2: | |
1893 | case ARM_IWMMXT_wCGR3: | |
1894 | gen_op_iwmmxt_set_cup(); | |
da6b5335 FN |
1895 | tmp = load_reg(s, rd); |
1896 | iwmmxt_store_creg(wrd, tmp); | |
18c9b560 AZ |
1897 | break; |
1898 | default: | |
1899 | return 1; | |
1900 | } | |
1901 | break; | |
d00584b7 | 1902 | case 0x100: /* WXOR */ |
18c9b560 AZ |
1903 | wrd = (insn >> 12) & 0xf; |
1904 | rd0 = (insn >> 0) & 0xf; | |
1905 | rd1 = (insn >> 16) & 0xf; | |
1906 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1907 | gen_op_iwmmxt_xorq_M0_wRn(rd1); | |
1908 | gen_op_iwmmxt_setpsr_nz(); | |
1909 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1910 | gen_op_iwmmxt_set_mup(); | |
1911 | gen_op_iwmmxt_set_cup(); | |
1912 | break; | |
d00584b7 | 1913 | case 0x111: /* TMRC */ |
18c9b560 AZ |
1914 | if (insn & 0xf) |
1915 | return 1; | |
1916 | rd = (insn >> 12) & 0xf; | |
1917 | wrd = (insn >> 16) & 0xf; | |
da6b5335 FN |
1918 | tmp = iwmmxt_load_creg(wrd); |
1919 | store_reg(s, rd, tmp); | |
18c9b560 | 1920 | break; |
d00584b7 | 1921 | case 0x300: /* WANDN */ |
18c9b560 AZ |
1922 | wrd = (insn >> 12) & 0xf; |
1923 | rd0 = (insn >> 0) & 0xf; | |
1924 | rd1 = (insn >> 16) & 0xf; | |
1925 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
e677137d | 1926 | tcg_gen_neg_i64(cpu_M0, cpu_M0); |
18c9b560 AZ |
1927 | gen_op_iwmmxt_andq_M0_wRn(rd1); |
1928 | gen_op_iwmmxt_setpsr_nz(); | |
1929 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1930 | gen_op_iwmmxt_set_mup(); | |
1931 | gen_op_iwmmxt_set_cup(); | |
1932 | break; | |
d00584b7 | 1933 | case 0x200: /* WAND */ |
18c9b560 AZ |
1934 | wrd = (insn >> 12) & 0xf; |
1935 | rd0 = (insn >> 0) & 0xf; | |
1936 | rd1 = (insn >> 16) & 0xf; | |
1937 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1938 | gen_op_iwmmxt_andq_M0_wRn(rd1); | |
1939 | gen_op_iwmmxt_setpsr_nz(); | |
1940 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1941 | gen_op_iwmmxt_set_mup(); | |
1942 | gen_op_iwmmxt_set_cup(); | |
1943 | break; | |
d00584b7 | 1944 | case 0x810: case 0xa10: /* WMADD */ |
18c9b560 AZ |
1945 | wrd = (insn >> 12) & 0xf; |
1946 | rd0 = (insn >> 0) & 0xf; | |
1947 | rd1 = (insn >> 16) & 0xf; | |
1948 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1949 | if (insn & (1 << 21)) | |
1950 | gen_op_iwmmxt_maddsq_M0_wRn(rd1); | |
1951 | else | |
1952 | gen_op_iwmmxt_madduq_M0_wRn(rd1); | |
1953 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1954 | gen_op_iwmmxt_set_mup(); | |
1955 | break; | |
d00584b7 | 1956 | case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */ |
18c9b560 AZ |
1957 | wrd = (insn >> 12) & 0xf; |
1958 | rd0 = (insn >> 16) & 0xf; | |
1959 | rd1 = (insn >> 0) & 0xf; | |
1960 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1961 | switch ((insn >> 22) & 3) { | |
1962 | case 0: | |
1963 | gen_op_iwmmxt_unpacklb_M0_wRn(rd1); | |
1964 | break; | |
1965 | case 1: | |
1966 | gen_op_iwmmxt_unpacklw_M0_wRn(rd1); | |
1967 | break; | |
1968 | case 2: | |
1969 | gen_op_iwmmxt_unpackll_M0_wRn(rd1); | |
1970 | break; | |
1971 | case 3: | |
1972 | return 1; | |
1973 | } | |
1974 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1975 | gen_op_iwmmxt_set_mup(); | |
1976 | gen_op_iwmmxt_set_cup(); | |
1977 | break; | |
d00584b7 | 1978 | case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */ |
18c9b560 AZ |
1979 | wrd = (insn >> 12) & 0xf; |
1980 | rd0 = (insn >> 16) & 0xf; | |
1981 | rd1 = (insn >> 0) & 0xf; | |
1982 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1983 | switch ((insn >> 22) & 3) { | |
1984 | case 0: | |
1985 | gen_op_iwmmxt_unpackhb_M0_wRn(rd1); | |
1986 | break; | |
1987 | case 1: | |
1988 | gen_op_iwmmxt_unpackhw_M0_wRn(rd1); | |
1989 | break; | |
1990 | case 2: | |
1991 | gen_op_iwmmxt_unpackhl_M0_wRn(rd1); | |
1992 | break; | |
1993 | case 3: | |
1994 | return 1; | |
1995 | } | |
1996 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1997 | gen_op_iwmmxt_set_mup(); | |
1998 | gen_op_iwmmxt_set_cup(); | |
1999 | break; | |
d00584b7 | 2000 | case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */ |
18c9b560 AZ |
2001 | wrd = (insn >> 12) & 0xf; |
2002 | rd0 = (insn >> 16) & 0xf; | |
2003 | rd1 = (insn >> 0) & 0xf; | |
2004 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2005 | if (insn & (1 << 22)) | |
2006 | gen_op_iwmmxt_sadw_M0_wRn(rd1); | |
2007 | else | |
2008 | gen_op_iwmmxt_sadb_M0_wRn(rd1); | |
2009 | if (!(insn & (1 << 20))) | |
2010 | gen_op_iwmmxt_addl_M0_wRn(wrd); | |
2011 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2012 | gen_op_iwmmxt_set_mup(); | |
2013 | break; | |
d00584b7 | 2014 | case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */ |
18c9b560 AZ |
2015 | wrd = (insn >> 12) & 0xf; |
2016 | rd0 = (insn >> 16) & 0xf; | |
2017 | rd1 = (insn >> 0) & 0xf; | |
2018 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
e677137d PB |
2019 | if (insn & (1 << 21)) { |
2020 | if (insn & (1 << 20)) | |
2021 | gen_op_iwmmxt_mulshw_M0_wRn(rd1); | |
2022 | else | |
2023 | gen_op_iwmmxt_mulslw_M0_wRn(rd1); | |
2024 | } else { | |
2025 | if (insn & (1 << 20)) | |
2026 | gen_op_iwmmxt_muluhw_M0_wRn(rd1); | |
2027 | else | |
2028 | gen_op_iwmmxt_mululw_M0_wRn(rd1); | |
2029 | } | |
18c9b560 AZ |
2030 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2031 | gen_op_iwmmxt_set_mup(); | |
2032 | break; | |
d00584b7 | 2033 | case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */ |
18c9b560 AZ |
2034 | wrd = (insn >> 12) & 0xf; |
2035 | rd0 = (insn >> 16) & 0xf; | |
2036 | rd1 = (insn >> 0) & 0xf; | |
2037 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2038 | if (insn & (1 << 21)) | |
2039 | gen_op_iwmmxt_macsw_M0_wRn(rd1); | |
2040 | else | |
2041 | gen_op_iwmmxt_macuw_M0_wRn(rd1); | |
2042 | if (!(insn & (1 << 20))) { | |
e677137d PB |
2043 | iwmmxt_load_reg(cpu_V1, wrd); |
2044 | tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); | |
18c9b560 AZ |
2045 | } |
2046 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2047 | gen_op_iwmmxt_set_mup(); | |
2048 | break; | |
d00584b7 | 2049 | case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */ |
18c9b560 AZ |
2050 | wrd = (insn >> 12) & 0xf; |
2051 | rd0 = (insn >> 16) & 0xf; | |
2052 | rd1 = (insn >> 0) & 0xf; | |
2053 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2054 | switch ((insn >> 22) & 3) { | |
2055 | case 0: | |
2056 | gen_op_iwmmxt_cmpeqb_M0_wRn(rd1); | |
2057 | break; | |
2058 | case 1: | |
2059 | gen_op_iwmmxt_cmpeqw_M0_wRn(rd1); | |
2060 | break; | |
2061 | case 2: | |
2062 | gen_op_iwmmxt_cmpeql_M0_wRn(rd1); | |
2063 | break; | |
2064 | case 3: | |
2065 | return 1; | |
2066 | } | |
2067 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2068 | gen_op_iwmmxt_set_mup(); | |
2069 | gen_op_iwmmxt_set_cup(); | |
2070 | break; | |
d00584b7 | 2071 | case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */ |
18c9b560 AZ |
2072 | wrd = (insn >> 12) & 0xf; |
2073 | rd0 = (insn >> 16) & 0xf; | |
2074 | rd1 = (insn >> 0) & 0xf; | |
2075 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
e677137d PB |
2076 | if (insn & (1 << 22)) { |
2077 | if (insn & (1 << 20)) | |
2078 | gen_op_iwmmxt_avgw1_M0_wRn(rd1); | |
2079 | else | |
2080 | gen_op_iwmmxt_avgw0_M0_wRn(rd1); | |
2081 | } else { | |
2082 | if (insn & (1 << 20)) | |
2083 | gen_op_iwmmxt_avgb1_M0_wRn(rd1); | |
2084 | else | |
2085 | gen_op_iwmmxt_avgb0_M0_wRn(rd1); | |
2086 | } | |
18c9b560 AZ |
2087 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2088 | gen_op_iwmmxt_set_mup(); | |
2089 | gen_op_iwmmxt_set_cup(); | |
2090 | break; | |
d00584b7 | 2091 | case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */ |
18c9b560 AZ |
2092 | wrd = (insn >> 12) & 0xf; |
2093 | rd0 = (insn >> 16) & 0xf; | |
2094 | rd1 = (insn >> 0) & 0xf; | |
2095 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
da6b5335 FN |
2096 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3)); |
2097 | tcg_gen_andi_i32(tmp, tmp, 7); | |
2098 | iwmmxt_load_reg(cpu_V1, rd1); | |
2099 | gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); | |
7d1b0095 | 2100 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2101 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2102 | gen_op_iwmmxt_set_mup(); | |
2103 | break; | |
d00584b7 | 2104 | case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */ |
da6b5335 FN |
2105 | if (((insn >> 6) & 3) == 3) |
2106 | return 1; | |
18c9b560 AZ |
2107 | rd = (insn >> 12) & 0xf; |
2108 | wrd = (insn >> 16) & 0xf; | |
da6b5335 | 2109 | tmp = load_reg(s, rd); |
18c9b560 AZ |
2110 | gen_op_iwmmxt_movq_M0_wRn(wrd); |
2111 | switch ((insn >> 6) & 3) { | |
2112 | case 0: | |
da6b5335 FN |
2113 | tmp2 = tcg_const_i32(0xff); |
2114 | tmp3 = tcg_const_i32((insn & 7) << 3); | |
18c9b560 AZ |
2115 | break; |
2116 | case 1: | |
da6b5335 FN |
2117 | tmp2 = tcg_const_i32(0xffff); |
2118 | tmp3 = tcg_const_i32((insn & 3) << 4); | |
18c9b560 AZ |
2119 | break; |
2120 | case 2: | |
da6b5335 FN |
2121 | tmp2 = tcg_const_i32(0xffffffff); |
2122 | tmp3 = tcg_const_i32((insn & 1) << 5); | |
18c9b560 | 2123 | break; |
da6b5335 | 2124 | default: |
f764718d RH |
2125 | tmp2 = NULL; |
2126 | tmp3 = NULL; | |
18c9b560 | 2127 | } |
da6b5335 | 2128 | gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, tmp, tmp2, tmp3); |
39d5492a PM |
2129 | tcg_temp_free_i32(tmp3); |
2130 | tcg_temp_free_i32(tmp2); | |
7d1b0095 | 2131 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2132 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2133 | gen_op_iwmmxt_set_mup(); | |
2134 | break; | |
d00584b7 | 2135 | case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */ |
18c9b560 AZ |
2136 | rd = (insn >> 12) & 0xf; |
2137 | wrd = (insn >> 16) & 0xf; | |
da6b5335 | 2138 | if (rd == 15 || ((insn >> 22) & 3) == 3) |
18c9b560 AZ |
2139 | return 1; |
2140 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
7d1b0095 | 2141 | tmp = tcg_temp_new_i32(); |
18c9b560 AZ |
2142 | switch ((insn >> 22) & 3) { |
2143 | case 0: | |
da6b5335 | 2144 | tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 7) << 3); |
ecc7b3aa | 2145 | tcg_gen_extrl_i64_i32(tmp, cpu_M0); |
da6b5335 FN |
2146 | if (insn & 8) { |
2147 | tcg_gen_ext8s_i32(tmp, tmp); | |
2148 | } else { | |
2149 | tcg_gen_andi_i32(tmp, tmp, 0xff); | |
18c9b560 AZ |
2150 | } |
2151 | break; | |
2152 | case 1: | |
da6b5335 | 2153 | tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 3) << 4); |
ecc7b3aa | 2154 | tcg_gen_extrl_i64_i32(tmp, cpu_M0); |
da6b5335 FN |
2155 | if (insn & 8) { |
2156 | tcg_gen_ext16s_i32(tmp, tmp); | |
2157 | } else { | |
2158 | tcg_gen_andi_i32(tmp, tmp, 0xffff); | |
18c9b560 AZ |
2159 | } |
2160 | break; | |
2161 | case 2: | |
da6b5335 | 2162 | tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 1) << 5); |
ecc7b3aa | 2163 | tcg_gen_extrl_i64_i32(tmp, cpu_M0); |
18c9b560 | 2164 | break; |
18c9b560 | 2165 | } |
da6b5335 | 2166 | store_reg(s, rd, tmp); |
18c9b560 | 2167 | break; |
d00584b7 | 2168 | case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */ |
da6b5335 | 2169 | if ((insn & 0x000ff008) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
18c9b560 | 2170 | return 1; |
da6b5335 | 2171 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
18c9b560 AZ |
2172 | switch ((insn >> 22) & 3) { |
2173 | case 0: | |
da6b5335 | 2174 | tcg_gen_shri_i32(tmp, tmp, ((insn & 7) << 2) + 0); |
18c9b560 AZ |
2175 | break; |
2176 | case 1: | |
da6b5335 | 2177 | tcg_gen_shri_i32(tmp, tmp, ((insn & 3) << 3) + 4); |
18c9b560 AZ |
2178 | break; |
2179 | case 2: | |
da6b5335 | 2180 | tcg_gen_shri_i32(tmp, tmp, ((insn & 1) << 4) + 12); |
18c9b560 | 2181 | break; |
18c9b560 | 2182 | } |
da6b5335 FN |
2183 | tcg_gen_shli_i32(tmp, tmp, 28); |
2184 | gen_set_nzcv(tmp); | |
7d1b0095 | 2185 | tcg_temp_free_i32(tmp); |
18c9b560 | 2186 | break; |
d00584b7 | 2187 | case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */ |
da6b5335 FN |
2188 | if (((insn >> 6) & 3) == 3) |
2189 | return 1; | |
18c9b560 AZ |
2190 | rd = (insn >> 12) & 0xf; |
2191 | wrd = (insn >> 16) & 0xf; | |
da6b5335 | 2192 | tmp = load_reg(s, rd); |
18c9b560 AZ |
2193 | switch ((insn >> 6) & 3) { |
2194 | case 0: | |
da6b5335 | 2195 | gen_helper_iwmmxt_bcstb(cpu_M0, tmp); |
18c9b560 AZ |
2196 | break; |
2197 | case 1: | |
da6b5335 | 2198 | gen_helper_iwmmxt_bcstw(cpu_M0, tmp); |
18c9b560 AZ |
2199 | break; |
2200 | case 2: | |
da6b5335 | 2201 | gen_helper_iwmmxt_bcstl(cpu_M0, tmp); |
18c9b560 | 2202 | break; |
18c9b560 | 2203 | } |
7d1b0095 | 2204 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2205 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2206 | gen_op_iwmmxt_set_mup(); | |
2207 | break; | |
d00584b7 | 2208 | case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */ |
da6b5335 | 2209 | if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
18c9b560 | 2210 | return 1; |
da6b5335 | 2211 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
7d1b0095 | 2212 | tmp2 = tcg_temp_new_i32(); |
da6b5335 | 2213 | tcg_gen_mov_i32(tmp2, tmp); |
18c9b560 AZ |
2214 | switch ((insn >> 22) & 3) { |
2215 | case 0: | |
2216 | for (i = 0; i < 7; i ++) { | |
da6b5335 FN |
2217 | tcg_gen_shli_i32(tmp2, tmp2, 4); |
2218 | tcg_gen_and_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
2219 | } |
2220 | break; | |
2221 | case 1: | |
2222 | for (i = 0; i < 3; i ++) { | |
da6b5335 FN |
2223 | tcg_gen_shli_i32(tmp2, tmp2, 8); |
2224 | tcg_gen_and_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
2225 | } |
2226 | break; | |
2227 | case 2: | |
da6b5335 FN |
2228 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
2229 | tcg_gen_and_i32(tmp, tmp, tmp2); | |
18c9b560 | 2230 | break; |
18c9b560 | 2231 | } |
da6b5335 | 2232 | gen_set_nzcv(tmp); |
7d1b0095 PM |
2233 | tcg_temp_free_i32(tmp2); |
2234 | tcg_temp_free_i32(tmp); | |
18c9b560 | 2235 | break; |
d00584b7 | 2236 | case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */ |
18c9b560 AZ |
2237 | wrd = (insn >> 12) & 0xf; |
2238 | rd0 = (insn >> 16) & 0xf; | |
2239 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2240 | switch ((insn >> 22) & 3) { | |
2241 | case 0: | |
e677137d | 2242 | gen_helper_iwmmxt_addcb(cpu_M0, cpu_M0); |
18c9b560 AZ |
2243 | break; |
2244 | case 1: | |
e677137d | 2245 | gen_helper_iwmmxt_addcw(cpu_M0, cpu_M0); |
18c9b560 AZ |
2246 | break; |
2247 | case 2: | |
e677137d | 2248 | gen_helper_iwmmxt_addcl(cpu_M0, cpu_M0); |
18c9b560 AZ |
2249 | break; |
2250 | case 3: | |
2251 | return 1; | |
2252 | } | |
2253 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2254 | gen_op_iwmmxt_set_mup(); | |
2255 | break; | |
d00584b7 | 2256 | case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */ |
da6b5335 | 2257 | if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
18c9b560 | 2258 | return 1; |
da6b5335 | 2259 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
7d1b0095 | 2260 | tmp2 = tcg_temp_new_i32(); |
da6b5335 | 2261 | tcg_gen_mov_i32(tmp2, tmp); |
18c9b560 AZ |
2262 | switch ((insn >> 22) & 3) { |
2263 | case 0: | |
2264 | for (i = 0; i < 7; i ++) { | |
da6b5335 FN |
2265 | tcg_gen_shli_i32(tmp2, tmp2, 4); |
2266 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
2267 | } |
2268 | break; | |
2269 | case 1: | |
2270 | for (i = 0; i < 3; i ++) { | |
da6b5335 FN |
2271 | tcg_gen_shli_i32(tmp2, tmp2, 8); |
2272 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
2273 | } |
2274 | break; | |
2275 | case 2: | |
da6b5335 FN |
2276 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
2277 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
18c9b560 | 2278 | break; |
18c9b560 | 2279 | } |
da6b5335 | 2280 | gen_set_nzcv(tmp); |
7d1b0095 PM |
2281 | tcg_temp_free_i32(tmp2); |
2282 | tcg_temp_free_i32(tmp); | |
18c9b560 | 2283 | break; |
d00584b7 | 2284 | case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */ |
18c9b560 AZ |
2285 | rd = (insn >> 12) & 0xf; |
2286 | rd0 = (insn >> 16) & 0xf; | |
da6b5335 | 2287 | if ((insn & 0xf) != 0 || ((insn >> 22) & 3) == 3) |
18c9b560 AZ |
2288 | return 1; |
2289 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2290 | tmp = tcg_temp_new_i32(); |
18c9b560 AZ |
2291 | switch ((insn >> 22) & 3) { |
2292 | case 0: | |
da6b5335 | 2293 | gen_helper_iwmmxt_msbb(tmp, cpu_M0); |
18c9b560 AZ |
2294 | break; |
2295 | case 1: | |
da6b5335 | 2296 | gen_helper_iwmmxt_msbw(tmp, cpu_M0); |
18c9b560 AZ |
2297 | break; |
2298 | case 2: | |
da6b5335 | 2299 | gen_helper_iwmmxt_msbl(tmp, cpu_M0); |
18c9b560 | 2300 | break; |
18c9b560 | 2301 | } |
da6b5335 | 2302 | store_reg(s, rd, tmp); |
18c9b560 | 2303 | break; |
d00584b7 | 2304 | case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */ |
18c9b560 AZ |
2305 | case 0x906: case 0xb06: case 0xd06: case 0xf06: |
2306 | wrd = (insn >> 12) & 0xf; | |
2307 | rd0 = (insn >> 16) & 0xf; | |
2308 | rd1 = (insn >> 0) & 0xf; | |
2309 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2310 | switch ((insn >> 22) & 3) { | |
2311 | case 0: | |
2312 | if (insn & (1 << 21)) | |
2313 | gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1); | |
2314 | else | |
2315 | gen_op_iwmmxt_cmpgtub_M0_wRn(rd1); | |
2316 | break; | |
2317 | case 1: | |
2318 | if (insn & (1 << 21)) | |
2319 | gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1); | |
2320 | else | |
2321 | gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1); | |
2322 | break; | |
2323 | case 2: | |
2324 | if (insn & (1 << 21)) | |
2325 | gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1); | |
2326 | else | |
2327 | gen_op_iwmmxt_cmpgtul_M0_wRn(rd1); | |
2328 | break; | |
2329 | case 3: | |
2330 | return 1; | |
2331 | } | |
2332 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2333 | gen_op_iwmmxt_set_mup(); | |
2334 | gen_op_iwmmxt_set_cup(); | |
2335 | break; | |
d00584b7 | 2336 | case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */ |
18c9b560 AZ |
2337 | case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e: |
2338 | wrd = (insn >> 12) & 0xf; | |
2339 | rd0 = (insn >> 16) & 0xf; | |
2340 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2341 | switch ((insn >> 22) & 3) { | |
2342 | case 0: | |
2343 | if (insn & (1 << 21)) | |
2344 | gen_op_iwmmxt_unpacklsb_M0(); | |
2345 | else | |
2346 | gen_op_iwmmxt_unpacklub_M0(); | |
2347 | break; | |
2348 | case 1: | |
2349 | if (insn & (1 << 21)) | |
2350 | gen_op_iwmmxt_unpacklsw_M0(); | |
2351 | else | |
2352 | gen_op_iwmmxt_unpackluw_M0(); | |
2353 | break; | |
2354 | case 2: | |
2355 | if (insn & (1 << 21)) | |
2356 | gen_op_iwmmxt_unpacklsl_M0(); | |
2357 | else | |
2358 | gen_op_iwmmxt_unpacklul_M0(); | |
2359 | break; | |
2360 | case 3: | |
2361 | return 1; | |
2362 | } | |
2363 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2364 | gen_op_iwmmxt_set_mup(); | |
2365 | gen_op_iwmmxt_set_cup(); | |
2366 | break; | |
d00584b7 | 2367 | case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */ |
18c9b560 AZ |
2368 | case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c: |
2369 | wrd = (insn >> 12) & 0xf; | |
2370 | rd0 = (insn >> 16) & 0xf; | |
2371 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2372 | switch ((insn >> 22) & 3) { | |
2373 | case 0: | |
2374 | if (insn & (1 << 21)) | |
2375 | gen_op_iwmmxt_unpackhsb_M0(); | |
2376 | else | |
2377 | gen_op_iwmmxt_unpackhub_M0(); | |
2378 | break; | |
2379 | case 1: | |
2380 | if (insn & (1 << 21)) | |
2381 | gen_op_iwmmxt_unpackhsw_M0(); | |
2382 | else | |
2383 | gen_op_iwmmxt_unpackhuw_M0(); | |
2384 | break; | |
2385 | case 2: | |
2386 | if (insn & (1 << 21)) | |
2387 | gen_op_iwmmxt_unpackhsl_M0(); | |
2388 | else | |
2389 | gen_op_iwmmxt_unpackhul_M0(); | |
2390 | break; | |
2391 | case 3: | |
2392 | return 1; | |
2393 | } | |
2394 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2395 | gen_op_iwmmxt_set_mup(); | |
2396 | gen_op_iwmmxt_set_cup(); | |
2397 | break; | |
d00584b7 | 2398 | case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */ |
18c9b560 | 2399 | case 0x214: case 0x614: case 0xa14: case 0xe14: |
da6b5335 FN |
2400 | if (((insn >> 22) & 3) == 0) |
2401 | return 1; | |
18c9b560 AZ |
2402 | wrd = (insn >> 12) & 0xf; |
2403 | rd0 = (insn >> 16) & 0xf; | |
2404 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2405 | tmp = tcg_temp_new_i32(); |
da6b5335 | 2406 | if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
7d1b0095 | 2407 | tcg_temp_free_i32(tmp); |
18c9b560 | 2408 | return 1; |
da6b5335 | 2409 | } |
18c9b560 | 2410 | switch ((insn >> 22) & 3) { |
18c9b560 | 2411 | case 1: |
477955bd | 2412 | gen_helper_iwmmxt_srlw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2413 | break; |
2414 | case 2: | |
477955bd | 2415 | gen_helper_iwmmxt_srll(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2416 | break; |
2417 | case 3: | |
477955bd | 2418 | gen_helper_iwmmxt_srlq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2419 | break; |
2420 | } | |
7d1b0095 | 2421 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2422 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2423 | gen_op_iwmmxt_set_mup(); | |
2424 | gen_op_iwmmxt_set_cup(); | |
2425 | break; | |
d00584b7 | 2426 | case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */ |
18c9b560 | 2427 | case 0x014: case 0x414: case 0x814: case 0xc14: |
da6b5335 FN |
2428 | if (((insn >> 22) & 3) == 0) |
2429 | return 1; | |
18c9b560 AZ |
2430 | wrd = (insn >> 12) & 0xf; |
2431 | rd0 = (insn >> 16) & 0xf; | |
2432 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2433 | tmp = tcg_temp_new_i32(); |
da6b5335 | 2434 | if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
7d1b0095 | 2435 | tcg_temp_free_i32(tmp); |
18c9b560 | 2436 | return 1; |
da6b5335 | 2437 | } |
18c9b560 | 2438 | switch ((insn >> 22) & 3) { |
18c9b560 | 2439 | case 1: |
477955bd | 2440 | gen_helper_iwmmxt_sraw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2441 | break; |
2442 | case 2: | |
477955bd | 2443 | gen_helper_iwmmxt_sral(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2444 | break; |
2445 | case 3: | |
477955bd | 2446 | gen_helper_iwmmxt_sraq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2447 | break; |
2448 | } | |
7d1b0095 | 2449 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2450 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2451 | gen_op_iwmmxt_set_mup(); | |
2452 | gen_op_iwmmxt_set_cup(); | |
2453 | break; | |
d00584b7 | 2454 | case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */ |
18c9b560 | 2455 | case 0x114: case 0x514: case 0x914: case 0xd14: |
da6b5335 FN |
2456 | if (((insn >> 22) & 3) == 0) |
2457 | return 1; | |
18c9b560 AZ |
2458 | wrd = (insn >> 12) & 0xf; |
2459 | rd0 = (insn >> 16) & 0xf; | |
2460 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2461 | tmp = tcg_temp_new_i32(); |
da6b5335 | 2462 | if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
7d1b0095 | 2463 | tcg_temp_free_i32(tmp); |
18c9b560 | 2464 | return 1; |
da6b5335 | 2465 | } |
18c9b560 | 2466 | switch ((insn >> 22) & 3) { |
18c9b560 | 2467 | case 1: |
477955bd | 2468 | gen_helper_iwmmxt_sllw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2469 | break; |
2470 | case 2: | |
477955bd | 2471 | gen_helper_iwmmxt_slll(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2472 | break; |
2473 | case 3: | |
477955bd | 2474 | gen_helper_iwmmxt_sllq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2475 | break; |
2476 | } | |
7d1b0095 | 2477 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2478 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2479 | gen_op_iwmmxt_set_mup(); | |
2480 | gen_op_iwmmxt_set_cup(); | |
2481 | break; | |
d00584b7 | 2482 | case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */ |
18c9b560 | 2483 | case 0x314: case 0x714: case 0xb14: case 0xf14: |
da6b5335 FN |
2484 | if (((insn >> 22) & 3) == 0) |
2485 | return 1; | |
18c9b560 AZ |
2486 | wrd = (insn >> 12) & 0xf; |
2487 | rd0 = (insn >> 16) & 0xf; | |
2488 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2489 | tmp = tcg_temp_new_i32(); |
18c9b560 | 2490 | switch ((insn >> 22) & 3) { |
18c9b560 | 2491 | case 1: |
da6b5335 | 2492 | if (gen_iwmmxt_shift(insn, 0xf, tmp)) { |
7d1b0095 | 2493 | tcg_temp_free_i32(tmp); |
18c9b560 | 2494 | return 1; |
da6b5335 | 2495 | } |
477955bd | 2496 | gen_helper_iwmmxt_rorw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2497 | break; |
2498 | case 2: | |
da6b5335 | 2499 | if (gen_iwmmxt_shift(insn, 0x1f, tmp)) { |
7d1b0095 | 2500 | tcg_temp_free_i32(tmp); |
18c9b560 | 2501 | return 1; |
da6b5335 | 2502 | } |
477955bd | 2503 | gen_helper_iwmmxt_rorl(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2504 | break; |
2505 | case 3: | |
da6b5335 | 2506 | if (gen_iwmmxt_shift(insn, 0x3f, tmp)) { |
7d1b0095 | 2507 | tcg_temp_free_i32(tmp); |
18c9b560 | 2508 | return 1; |
da6b5335 | 2509 | } |
477955bd | 2510 | gen_helper_iwmmxt_rorq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2511 | break; |
2512 | } | |
7d1b0095 | 2513 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2514 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2515 | gen_op_iwmmxt_set_mup(); | |
2516 | gen_op_iwmmxt_set_cup(); | |
2517 | break; | |
d00584b7 | 2518 | case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */ |
18c9b560 AZ |
2519 | case 0x916: case 0xb16: case 0xd16: case 0xf16: |
2520 | wrd = (insn >> 12) & 0xf; | |
2521 | rd0 = (insn >> 16) & 0xf; | |
2522 | rd1 = (insn >> 0) & 0xf; | |
2523 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2524 | switch ((insn >> 22) & 3) { | |
2525 | case 0: | |
2526 | if (insn & (1 << 21)) | |
2527 | gen_op_iwmmxt_minsb_M0_wRn(rd1); | |
2528 | else | |
2529 | gen_op_iwmmxt_minub_M0_wRn(rd1); | |
2530 | break; | |
2531 | case 1: | |
2532 | if (insn & (1 << 21)) | |
2533 | gen_op_iwmmxt_minsw_M0_wRn(rd1); | |
2534 | else | |
2535 | gen_op_iwmmxt_minuw_M0_wRn(rd1); | |
2536 | break; | |
2537 | case 2: | |
2538 | if (insn & (1 << 21)) | |
2539 | gen_op_iwmmxt_minsl_M0_wRn(rd1); | |
2540 | else | |
2541 | gen_op_iwmmxt_minul_M0_wRn(rd1); | |
2542 | break; | |
2543 | case 3: | |
2544 | return 1; | |
2545 | } | |
2546 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2547 | gen_op_iwmmxt_set_mup(); | |
2548 | break; | |
d00584b7 | 2549 | case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */ |
18c9b560 AZ |
2550 | case 0x816: case 0xa16: case 0xc16: case 0xe16: |
2551 | wrd = (insn >> 12) & 0xf; | |
2552 | rd0 = (insn >> 16) & 0xf; | |
2553 | rd1 = (insn >> 0) & 0xf; | |
2554 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2555 | switch ((insn >> 22) & 3) { | |
2556 | case 0: | |
2557 | if (insn & (1 << 21)) | |
2558 | gen_op_iwmmxt_maxsb_M0_wRn(rd1); | |
2559 | else | |
2560 | gen_op_iwmmxt_maxub_M0_wRn(rd1); | |
2561 | break; | |
2562 | case 1: | |
2563 | if (insn & (1 << 21)) | |
2564 | gen_op_iwmmxt_maxsw_M0_wRn(rd1); | |
2565 | else | |
2566 | gen_op_iwmmxt_maxuw_M0_wRn(rd1); | |
2567 | break; | |
2568 | case 2: | |
2569 | if (insn & (1 << 21)) | |
2570 | gen_op_iwmmxt_maxsl_M0_wRn(rd1); | |
2571 | else | |
2572 | gen_op_iwmmxt_maxul_M0_wRn(rd1); | |
2573 | break; | |
2574 | case 3: | |
2575 | return 1; | |
2576 | } | |
2577 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2578 | gen_op_iwmmxt_set_mup(); | |
2579 | break; | |
d00584b7 | 2580 | case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */ |
18c9b560 AZ |
2581 | case 0x402: case 0x502: case 0x602: case 0x702: |
2582 | wrd = (insn >> 12) & 0xf; | |
2583 | rd0 = (insn >> 16) & 0xf; | |
2584 | rd1 = (insn >> 0) & 0xf; | |
2585 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
da6b5335 FN |
2586 | tmp = tcg_const_i32((insn >> 20) & 3); |
2587 | iwmmxt_load_reg(cpu_V1, rd1); | |
2588 | gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); | |
39d5492a | 2589 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2590 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2591 | gen_op_iwmmxt_set_mup(); | |
2592 | break; | |
d00584b7 | 2593 | case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */ |
18c9b560 AZ |
2594 | case 0x41a: case 0x51a: case 0x61a: case 0x71a: |
2595 | case 0x81a: case 0x91a: case 0xa1a: case 0xb1a: | |
2596 | case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a: | |
2597 | wrd = (insn >> 12) & 0xf; | |
2598 | rd0 = (insn >> 16) & 0xf; | |
2599 | rd1 = (insn >> 0) & 0xf; | |
2600 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2601 | switch ((insn >> 20) & 0xf) { | |
2602 | case 0x0: | |
2603 | gen_op_iwmmxt_subnb_M0_wRn(rd1); | |
2604 | break; | |
2605 | case 0x1: | |
2606 | gen_op_iwmmxt_subub_M0_wRn(rd1); | |
2607 | break; | |
2608 | case 0x3: | |
2609 | gen_op_iwmmxt_subsb_M0_wRn(rd1); | |
2610 | break; | |
2611 | case 0x4: | |
2612 | gen_op_iwmmxt_subnw_M0_wRn(rd1); | |
2613 | break; | |
2614 | case 0x5: | |
2615 | gen_op_iwmmxt_subuw_M0_wRn(rd1); | |
2616 | break; | |
2617 | case 0x7: | |
2618 | gen_op_iwmmxt_subsw_M0_wRn(rd1); | |
2619 | break; | |
2620 | case 0x8: | |
2621 | gen_op_iwmmxt_subnl_M0_wRn(rd1); | |
2622 | break; | |
2623 | case 0x9: | |
2624 | gen_op_iwmmxt_subul_M0_wRn(rd1); | |
2625 | break; | |
2626 | case 0xb: | |
2627 | gen_op_iwmmxt_subsl_M0_wRn(rd1); | |
2628 | break; | |
2629 | default: | |
2630 | return 1; | |
2631 | } | |
2632 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2633 | gen_op_iwmmxt_set_mup(); | |
2634 | gen_op_iwmmxt_set_cup(); | |
2635 | break; | |
d00584b7 | 2636 | case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */ |
18c9b560 AZ |
2637 | case 0x41e: case 0x51e: case 0x61e: case 0x71e: |
2638 | case 0x81e: case 0x91e: case 0xa1e: case 0xb1e: | |
2639 | case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e: | |
2640 | wrd = (insn >> 12) & 0xf; | |
2641 | rd0 = (insn >> 16) & 0xf; | |
2642 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
da6b5335 | 2643 | tmp = tcg_const_i32(((insn >> 16) & 0xf0) | (insn & 0x0f)); |
477955bd | 2644 | gen_helper_iwmmxt_shufh(cpu_M0, cpu_env, cpu_M0, tmp); |
39d5492a | 2645 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2646 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2647 | gen_op_iwmmxt_set_mup(); | |
2648 | gen_op_iwmmxt_set_cup(); | |
2649 | break; | |
d00584b7 | 2650 | case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */ |
18c9b560 AZ |
2651 | case 0x418: case 0x518: case 0x618: case 0x718: |
2652 | case 0x818: case 0x918: case 0xa18: case 0xb18: | |
2653 | case 0xc18: case 0xd18: case 0xe18: case 0xf18: | |
2654 | wrd = (insn >> 12) & 0xf; | |
2655 | rd0 = (insn >> 16) & 0xf; | |
2656 | rd1 = (insn >> 0) & 0xf; | |
2657 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2658 | switch ((insn >> 20) & 0xf) { | |
2659 | case 0x0: | |
2660 | gen_op_iwmmxt_addnb_M0_wRn(rd1); | |
2661 | break; | |
2662 | case 0x1: | |
2663 | gen_op_iwmmxt_addub_M0_wRn(rd1); | |
2664 | break; | |
2665 | case 0x3: | |
2666 | gen_op_iwmmxt_addsb_M0_wRn(rd1); | |
2667 | break; | |
2668 | case 0x4: | |
2669 | gen_op_iwmmxt_addnw_M0_wRn(rd1); | |
2670 | break; | |
2671 | case 0x5: | |
2672 | gen_op_iwmmxt_adduw_M0_wRn(rd1); | |
2673 | break; | |
2674 | case 0x7: | |
2675 | gen_op_iwmmxt_addsw_M0_wRn(rd1); | |
2676 | break; | |
2677 | case 0x8: | |
2678 | gen_op_iwmmxt_addnl_M0_wRn(rd1); | |
2679 | break; | |
2680 | case 0x9: | |
2681 | gen_op_iwmmxt_addul_M0_wRn(rd1); | |
2682 | break; | |
2683 | case 0xb: | |
2684 | gen_op_iwmmxt_addsl_M0_wRn(rd1); | |
2685 | break; | |
2686 | default: | |
2687 | return 1; | |
2688 | } | |
2689 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2690 | gen_op_iwmmxt_set_mup(); | |
2691 | gen_op_iwmmxt_set_cup(); | |
2692 | break; | |
d00584b7 | 2693 | case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */ |
18c9b560 AZ |
2694 | case 0x408: case 0x508: case 0x608: case 0x708: |
2695 | case 0x808: case 0x908: case 0xa08: case 0xb08: | |
2696 | case 0xc08: case 0xd08: case 0xe08: case 0xf08: | |
da6b5335 FN |
2697 | if (!(insn & (1 << 20)) || ((insn >> 22) & 3) == 0) |
2698 | return 1; | |
18c9b560 AZ |
2699 | wrd = (insn >> 12) & 0xf; |
2700 | rd0 = (insn >> 16) & 0xf; | |
2701 | rd1 = (insn >> 0) & 0xf; | |
2702 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
18c9b560 | 2703 | switch ((insn >> 22) & 3) { |
18c9b560 AZ |
2704 | case 1: |
2705 | if (insn & (1 << 21)) | |
2706 | gen_op_iwmmxt_packsw_M0_wRn(rd1); | |
2707 | else | |
2708 | gen_op_iwmmxt_packuw_M0_wRn(rd1); | |
2709 | break; | |
2710 | case 2: | |
2711 | if (insn & (1 << 21)) | |
2712 | gen_op_iwmmxt_packsl_M0_wRn(rd1); | |
2713 | else | |
2714 | gen_op_iwmmxt_packul_M0_wRn(rd1); | |
2715 | break; | |
2716 | case 3: | |
2717 | if (insn & (1 << 21)) | |
2718 | gen_op_iwmmxt_packsq_M0_wRn(rd1); | |
2719 | else | |
2720 | gen_op_iwmmxt_packuq_M0_wRn(rd1); | |
2721 | break; | |
2722 | } | |
2723 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2724 | gen_op_iwmmxt_set_mup(); | |
2725 | gen_op_iwmmxt_set_cup(); | |
2726 | break; | |
2727 | case 0x201: case 0x203: case 0x205: case 0x207: | |
2728 | case 0x209: case 0x20b: case 0x20d: case 0x20f: | |
2729 | case 0x211: case 0x213: case 0x215: case 0x217: | |
2730 | case 0x219: case 0x21b: case 0x21d: case 0x21f: | |
2731 | wrd = (insn >> 5) & 0xf; | |
2732 | rd0 = (insn >> 12) & 0xf; | |
2733 | rd1 = (insn >> 0) & 0xf; | |
2734 | if (rd0 == 0xf || rd1 == 0xf) | |
2735 | return 1; | |
2736 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
da6b5335 FN |
2737 | tmp = load_reg(s, rd0); |
2738 | tmp2 = load_reg(s, rd1); | |
18c9b560 | 2739 | switch ((insn >> 16) & 0xf) { |
d00584b7 | 2740 | case 0x0: /* TMIA */ |
da6b5335 | 2741 | gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 | 2742 | break; |
d00584b7 | 2743 | case 0x8: /* TMIAPH */ |
da6b5335 | 2744 | gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 | 2745 | break; |
d00584b7 | 2746 | case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */ |
18c9b560 | 2747 | if (insn & (1 << 16)) |
da6b5335 | 2748 | tcg_gen_shri_i32(tmp, tmp, 16); |
18c9b560 | 2749 | if (insn & (1 << 17)) |
da6b5335 FN |
2750 | tcg_gen_shri_i32(tmp2, tmp2, 16); |
2751 | gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); | |
18c9b560 AZ |
2752 | break; |
2753 | default: | |
7d1b0095 PM |
2754 | tcg_temp_free_i32(tmp2); |
2755 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
2756 | return 1; |
2757 | } | |
7d1b0095 PM |
2758 | tcg_temp_free_i32(tmp2); |
2759 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
2760 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2761 | gen_op_iwmmxt_set_mup(); | |
2762 | break; | |
2763 | default: | |
2764 | return 1; | |
2765 | } | |
2766 | ||
2767 | return 0; | |
2768 | } | |
2769 | ||
a1c7273b | 2770 | /* Disassemble an XScale DSP instruction. Returns nonzero if an error occurred |
18c9b560 | 2771 | (ie. an undefined instruction). */ |
7dcc1f89 | 2772 | static int disas_dsp_insn(DisasContext *s, uint32_t insn) |
18c9b560 AZ |
2773 | { |
2774 | int acc, rd0, rd1, rdhi, rdlo; | |
39d5492a | 2775 | TCGv_i32 tmp, tmp2; |
18c9b560 AZ |
2776 | |
2777 | if ((insn & 0x0ff00f10) == 0x0e200010) { | |
2778 | /* Multiply with Internal Accumulate Format */ | |
2779 | rd0 = (insn >> 12) & 0xf; | |
2780 | rd1 = insn & 0xf; | |
2781 | acc = (insn >> 5) & 7; | |
2782 | ||
2783 | if (acc != 0) | |
2784 | return 1; | |
2785 | ||
3a554c0f FN |
2786 | tmp = load_reg(s, rd0); |
2787 | tmp2 = load_reg(s, rd1); | |
18c9b560 | 2788 | switch ((insn >> 16) & 0xf) { |
d00584b7 | 2789 | case 0x0: /* MIA */ |
3a554c0f | 2790 | gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 | 2791 | break; |
d00584b7 | 2792 | case 0x8: /* MIAPH */ |
3a554c0f | 2793 | gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 | 2794 | break; |
d00584b7 PM |
2795 | case 0xc: /* MIABB */ |
2796 | case 0xd: /* MIABT */ | |
2797 | case 0xe: /* MIATB */ | |
2798 | case 0xf: /* MIATT */ | |
18c9b560 | 2799 | if (insn & (1 << 16)) |
3a554c0f | 2800 | tcg_gen_shri_i32(tmp, tmp, 16); |
18c9b560 | 2801 | if (insn & (1 << 17)) |
3a554c0f FN |
2802 | tcg_gen_shri_i32(tmp2, tmp2, 16); |
2803 | gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); | |
18c9b560 AZ |
2804 | break; |
2805 | default: | |
2806 | return 1; | |
2807 | } | |
7d1b0095 PM |
2808 | tcg_temp_free_i32(tmp2); |
2809 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
2810 | |
2811 | gen_op_iwmmxt_movq_wRn_M0(acc); | |
2812 | return 0; | |
2813 | } | |
2814 | ||
2815 | if ((insn & 0x0fe00ff8) == 0x0c400000) { | |
2816 | /* Internal Accumulator Access Format */ | |
2817 | rdhi = (insn >> 16) & 0xf; | |
2818 | rdlo = (insn >> 12) & 0xf; | |
2819 | acc = insn & 7; | |
2820 | ||
2821 | if (acc != 0) | |
2822 | return 1; | |
2823 | ||
d00584b7 | 2824 | if (insn & ARM_CP_RW_BIT) { /* MRA */ |
3a554c0f | 2825 | iwmmxt_load_reg(cpu_V0, acc); |
ecc7b3aa | 2826 | tcg_gen_extrl_i64_i32(cpu_R[rdlo], cpu_V0); |
3a554c0f | 2827 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); |
ecc7b3aa | 2828 | tcg_gen_extrl_i64_i32(cpu_R[rdhi], cpu_V0); |
3a554c0f | 2829 | tcg_gen_andi_i32(cpu_R[rdhi], cpu_R[rdhi], (1 << (40 - 32)) - 1); |
d00584b7 | 2830 | } else { /* MAR */ |
3a554c0f FN |
2831 | tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
2832 | iwmmxt_store_reg(cpu_V0, acc); | |
18c9b560 AZ |
2833 | } |
2834 | return 0; | |
2835 | } | |
2836 | ||
2837 | return 1; | |
2838 | } | |
2839 | ||
9ee6e8bb PB |
2840 | #define VFP_REG_SHR(x, n) (((n) > 0) ? (x) >> (n) : (x) << -(n)) |
2841 | #define VFP_SREG(insn, bigbit, smallbit) \ | |
2842 | ((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1)) | |
2843 | #define VFP_DREG(reg, insn, bigbit, smallbit) do { \ | |
d614a513 | 2844 | if (arm_dc_feature(s, ARM_FEATURE_VFP3)) { \ |
9ee6e8bb PB |
2845 | reg = (((insn) >> (bigbit)) & 0x0f) \ |
2846 | | (((insn) >> ((smallbit) - 4)) & 0x10); \ | |
2847 | } else { \ | |
2848 | if (insn & (1 << (smallbit))) \ | |
2849 | return 1; \ | |
2850 | reg = ((insn) >> (bigbit)) & 0x0f; \ | |
2851 | }} while (0) | |
2852 | ||
2853 | #define VFP_SREG_D(insn) VFP_SREG(insn, 12, 22) | |
2854 | #define VFP_DREG_D(reg, insn) VFP_DREG(reg, insn, 12, 22) | |
2855 | #define VFP_SREG_N(insn) VFP_SREG(insn, 16, 7) | |
2856 | #define VFP_DREG_N(reg, insn) VFP_DREG(reg, insn, 16, 7) | |
2857 | #define VFP_SREG_M(insn) VFP_SREG(insn, 0, 5) | |
2858 | #define VFP_DREG_M(reg, insn) VFP_DREG(reg, insn, 0, 5) | |
2859 | ||
39d5492a | 2860 | static void gen_neon_dup_low16(TCGv_i32 var) |
ad69471c | 2861 | { |
39d5492a | 2862 | TCGv_i32 tmp = tcg_temp_new_i32(); |
86831435 | 2863 | tcg_gen_ext16u_i32(var, var); |
ad69471c PB |
2864 | tcg_gen_shli_i32(tmp, var, 16); |
2865 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 2866 | tcg_temp_free_i32(tmp); |
ad69471c PB |
2867 | } |
2868 | ||
39d5492a | 2869 | static void gen_neon_dup_high16(TCGv_i32 var) |
ad69471c | 2870 | { |
39d5492a | 2871 | TCGv_i32 tmp = tcg_temp_new_i32(); |
ad69471c PB |
2872 | tcg_gen_andi_i32(var, var, 0xffff0000); |
2873 | tcg_gen_shri_i32(tmp, var, 16); | |
2874 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 2875 | tcg_temp_free_i32(tmp); |
ad69471c PB |
2876 | } |
2877 | ||
06db8196 PM |
2878 | /* |
2879 | * Disassemble a VFP instruction. Returns nonzero if an error occurred | |
2880 | * (ie. an undefined instruction). | |
2881 | */ | |
7dcc1f89 | 2882 | static int disas_vfp_insn(DisasContext *s, uint32_t insn) |
b7bcbe95 | 2883 | { |
d614a513 | 2884 | if (!arm_dc_feature(s, ARM_FEATURE_VFP)) { |
40f137e1 | 2885 | return 1; |
d614a513 | 2886 | } |
40f137e1 | 2887 | |
78e138bc PM |
2888 | /* |
2889 | * If the decodetree decoder handles this insn it will always | |
2890 | * emit code to either execute the insn or generate an appropriate | |
2891 | * exception; so we don't need to ever return non-zero to tell | |
2892 | * the calling code to emit an UNDEF exception. | |
2893 | */ | |
2894 | if (extract32(insn, 28, 4) == 0xf) { | |
2895 | if (disas_vfp_uncond(s, insn)) { | |
2896 | return 0; | |
2897 | } | |
2898 | } else { | |
2899 | if (disas_vfp(s, insn)) { | |
2900 | return 0; | |
2901 | } | |
2902 | } | |
3111bfc2 PM |
2903 | /* If the decodetree decoder didn't handle this insn, it must be UNDEF */ |
2904 | return 1; | |
b7bcbe95 FB |
2905 | } |
2906 | ||
90aa39a1 | 2907 | static inline bool use_goto_tb(DisasContext *s, target_ulong dest) |
c53be334 | 2908 | { |
90aa39a1 | 2909 | #ifndef CONFIG_USER_ONLY |
dcba3a8d | 2910 | return (s->base.tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) || |
90aa39a1 SF |
2911 | ((s->pc - 1) & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); |
2912 | #else | |
2913 | return true; | |
2914 | #endif | |
2915 | } | |
6e256c93 | 2916 | |
8a6b28c7 EC |
2917 | static void gen_goto_ptr(void) |
2918 | { | |
7f11636d | 2919 | tcg_gen_lookup_and_goto_ptr(); |
8a6b28c7 EC |
2920 | } |
2921 | ||
4cae8f56 AB |
2922 | /* This will end the TB but doesn't guarantee we'll return to |
2923 | * cpu_loop_exec. Any live exit_requests will be processed as we | |
2924 | * enter the next TB. | |
2925 | */ | |
8a6b28c7 | 2926 | static void gen_goto_tb(DisasContext *s, int n, target_ulong dest) |
90aa39a1 SF |
2927 | { |
2928 | if (use_goto_tb(s, dest)) { | |
57fec1fe | 2929 | tcg_gen_goto_tb(n); |
eaed129d | 2930 | gen_set_pc_im(s, dest); |
07ea28b4 | 2931 | tcg_gen_exit_tb(s->base.tb, n); |
6e256c93 | 2932 | } else { |
eaed129d | 2933 | gen_set_pc_im(s, dest); |
8a6b28c7 | 2934 | gen_goto_ptr(); |
6e256c93 | 2935 | } |
dcba3a8d | 2936 | s->base.is_jmp = DISAS_NORETURN; |
c53be334 FB |
2937 | } |
2938 | ||
8aaca4c0 FB |
2939 | static inline void gen_jmp (DisasContext *s, uint32_t dest) |
2940 | { | |
b636649f | 2941 | if (unlikely(is_singlestepping(s))) { |
8aaca4c0 | 2942 | /* An indirect jump so that we still trigger the debug exception. */ |
5899f386 | 2943 | if (s->thumb) |
d9ba4830 PB |
2944 | dest |= 1; |
2945 | gen_bx_im(s, dest); | |
8aaca4c0 | 2946 | } else { |
6e256c93 | 2947 | gen_goto_tb(s, 0, dest); |
8aaca4c0 FB |
2948 | } |
2949 | } | |
2950 | ||
39d5492a | 2951 | static inline void gen_mulxy(TCGv_i32 t0, TCGv_i32 t1, int x, int y) |
b5ff1b31 | 2952 | { |
ee097184 | 2953 | if (x) |
d9ba4830 | 2954 | tcg_gen_sari_i32(t0, t0, 16); |
b5ff1b31 | 2955 | else |
d9ba4830 | 2956 | gen_sxth(t0); |
ee097184 | 2957 | if (y) |
d9ba4830 | 2958 | tcg_gen_sari_i32(t1, t1, 16); |
b5ff1b31 | 2959 | else |
d9ba4830 PB |
2960 | gen_sxth(t1); |
2961 | tcg_gen_mul_i32(t0, t0, t1); | |
b5ff1b31 FB |
2962 | } |
2963 | ||
2964 | /* Return the mask of PSR bits set by a MSR instruction. */ | |
7dcc1f89 PM |
2965 | static uint32_t msr_mask(DisasContext *s, int flags, int spsr) |
2966 | { | |
b5ff1b31 FB |
2967 | uint32_t mask; |
2968 | ||
2969 | mask = 0; | |
2970 | if (flags & (1 << 0)) | |
2971 | mask |= 0xff; | |
2972 | if (flags & (1 << 1)) | |
2973 | mask |= 0xff00; | |
2974 | if (flags & (1 << 2)) | |
2975 | mask |= 0xff0000; | |
2976 | if (flags & (1 << 3)) | |
2977 | mask |= 0xff000000; | |
9ee6e8bb | 2978 | |
2ae23e75 | 2979 | /* Mask out undefined bits. */ |
9ee6e8bb | 2980 | mask &= ~CPSR_RESERVED; |
d614a513 | 2981 | if (!arm_dc_feature(s, ARM_FEATURE_V4T)) { |
be5e7a76 | 2982 | mask &= ~CPSR_T; |
d614a513 PM |
2983 | } |
2984 | if (!arm_dc_feature(s, ARM_FEATURE_V5)) { | |
be5e7a76 | 2985 | mask &= ~CPSR_Q; /* V5TE in reality*/ |
d614a513 PM |
2986 | } |
2987 | if (!arm_dc_feature(s, ARM_FEATURE_V6)) { | |
e160c51c | 2988 | mask &= ~(CPSR_E | CPSR_GE); |
d614a513 PM |
2989 | } |
2990 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB2)) { | |
e160c51c | 2991 | mask &= ~CPSR_IT; |
d614a513 | 2992 | } |
4051e12c PM |
2993 | /* Mask out execution state and reserved bits. */ |
2994 | if (!spsr) { | |
2995 | mask &= ~(CPSR_EXEC | CPSR_RESERVED); | |
2996 | } | |
b5ff1b31 FB |
2997 | /* Mask out privileged bits. */ |
2998 | if (IS_USER(s)) | |
9ee6e8bb | 2999 | mask &= CPSR_USER; |
b5ff1b31 FB |
3000 | return mask; |
3001 | } | |
3002 | ||
2fbac54b | 3003 | /* Returns nonzero if access to the PSR is not permitted. Marks t0 as dead. */ |
39d5492a | 3004 | static int gen_set_psr(DisasContext *s, uint32_t mask, int spsr, TCGv_i32 t0) |
b5ff1b31 | 3005 | { |
39d5492a | 3006 | TCGv_i32 tmp; |
b5ff1b31 FB |
3007 | if (spsr) { |
3008 | /* ??? This is also undefined in system mode. */ | |
3009 | if (IS_USER(s)) | |
3010 | return 1; | |
d9ba4830 PB |
3011 | |
3012 | tmp = load_cpu_field(spsr); | |
3013 | tcg_gen_andi_i32(tmp, tmp, ~mask); | |
2fbac54b FN |
3014 | tcg_gen_andi_i32(t0, t0, mask); |
3015 | tcg_gen_or_i32(tmp, tmp, t0); | |
d9ba4830 | 3016 | store_cpu_field(tmp, spsr); |
b5ff1b31 | 3017 | } else { |
2fbac54b | 3018 | gen_set_cpsr(t0, mask); |
b5ff1b31 | 3019 | } |
7d1b0095 | 3020 | tcg_temp_free_i32(t0); |
b5ff1b31 FB |
3021 | gen_lookup_tb(s); |
3022 | return 0; | |
3023 | } | |
3024 | ||
2fbac54b FN |
3025 | /* Returns nonzero if access to the PSR is not permitted. */ |
3026 | static int gen_set_psr_im(DisasContext *s, uint32_t mask, int spsr, uint32_t val) | |
3027 | { | |
39d5492a | 3028 | TCGv_i32 tmp; |
7d1b0095 | 3029 | tmp = tcg_temp_new_i32(); |
2fbac54b FN |
3030 | tcg_gen_movi_i32(tmp, val); |
3031 | return gen_set_psr(s, mask, spsr, tmp); | |
3032 | } | |
3033 | ||
8bfd0550 PM |
3034 | static bool msr_banked_access_decode(DisasContext *s, int r, int sysm, int rn, |
3035 | int *tgtmode, int *regno) | |
3036 | { | |
3037 | /* Decode the r and sysm fields of MSR/MRS banked accesses into | |
3038 | * the target mode and register number, and identify the various | |
3039 | * unpredictable cases. | |
3040 | * MSR (banked) and MRS (banked) are CONSTRAINED UNPREDICTABLE if: | |
3041 | * + executed in user mode | |
3042 | * + using R15 as the src/dest register | |
3043 | * + accessing an unimplemented register | |
3044 | * + accessing a register that's inaccessible at current PL/security state* | |
3045 | * + accessing a register that you could access with a different insn | |
3046 | * We choose to UNDEF in all these cases. | |
3047 | * Since we don't know which of the various AArch32 modes we are in | |
3048 | * we have to defer some checks to runtime. | |
3049 | * Accesses to Monitor mode registers from Secure EL1 (which implies | |
3050 | * that EL3 is AArch64) must trap to EL3. | |
3051 | * | |
3052 | * If the access checks fail this function will emit code to take | |
3053 | * an exception and return false. Otherwise it will return true, | |
3054 | * and set *tgtmode and *regno appropriately. | |
3055 | */ | |
3056 | int exc_target = default_exception_el(s); | |
3057 | ||
3058 | /* These instructions are present only in ARMv8, or in ARMv7 with the | |
3059 | * Virtualization Extensions. | |
3060 | */ | |
3061 | if (!arm_dc_feature(s, ARM_FEATURE_V8) && | |
3062 | !arm_dc_feature(s, ARM_FEATURE_EL2)) { | |
3063 | goto undef; | |
3064 | } | |
3065 | ||
3066 | if (IS_USER(s) || rn == 15) { | |
3067 | goto undef; | |
3068 | } | |
3069 | ||
3070 | /* The table in the v8 ARM ARM section F5.2.3 describes the encoding | |
3071 | * of registers into (r, sysm). | |
3072 | */ | |
3073 | if (r) { | |
3074 | /* SPSRs for other modes */ | |
3075 | switch (sysm) { | |
3076 | case 0xe: /* SPSR_fiq */ | |
3077 | *tgtmode = ARM_CPU_MODE_FIQ; | |
3078 | break; | |
3079 | case 0x10: /* SPSR_irq */ | |
3080 | *tgtmode = ARM_CPU_MODE_IRQ; | |
3081 | break; | |
3082 | case 0x12: /* SPSR_svc */ | |
3083 | *tgtmode = ARM_CPU_MODE_SVC; | |
3084 | break; | |
3085 | case 0x14: /* SPSR_abt */ | |
3086 | *tgtmode = ARM_CPU_MODE_ABT; | |
3087 | break; | |
3088 | case 0x16: /* SPSR_und */ | |
3089 | *tgtmode = ARM_CPU_MODE_UND; | |
3090 | break; | |
3091 | case 0x1c: /* SPSR_mon */ | |
3092 | *tgtmode = ARM_CPU_MODE_MON; | |
3093 | break; | |
3094 | case 0x1e: /* SPSR_hyp */ | |
3095 | *tgtmode = ARM_CPU_MODE_HYP; | |
3096 | break; | |
3097 | default: /* unallocated */ | |
3098 | goto undef; | |
3099 | } | |
3100 | /* We arbitrarily assign SPSR a register number of 16. */ | |
3101 | *regno = 16; | |
3102 | } else { | |
3103 | /* general purpose registers for other modes */ | |
3104 | switch (sysm) { | |
3105 | case 0x0 ... 0x6: /* 0b00xxx : r8_usr ... r14_usr */ | |
3106 | *tgtmode = ARM_CPU_MODE_USR; | |
3107 | *regno = sysm + 8; | |
3108 | break; | |
3109 | case 0x8 ... 0xe: /* 0b01xxx : r8_fiq ... r14_fiq */ | |
3110 | *tgtmode = ARM_CPU_MODE_FIQ; | |
3111 | *regno = sysm; | |
3112 | break; | |
3113 | case 0x10 ... 0x11: /* 0b1000x : r14_irq, r13_irq */ | |
3114 | *tgtmode = ARM_CPU_MODE_IRQ; | |
3115 | *regno = sysm & 1 ? 13 : 14; | |
3116 | break; | |
3117 | case 0x12 ... 0x13: /* 0b1001x : r14_svc, r13_svc */ | |
3118 | *tgtmode = ARM_CPU_MODE_SVC; | |
3119 | *regno = sysm & 1 ? 13 : 14; | |
3120 | break; | |
3121 | case 0x14 ... 0x15: /* 0b1010x : r14_abt, r13_abt */ | |
3122 | *tgtmode = ARM_CPU_MODE_ABT; | |
3123 | *regno = sysm & 1 ? 13 : 14; | |
3124 | break; | |
3125 | case 0x16 ... 0x17: /* 0b1011x : r14_und, r13_und */ | |
3126 | *tgtmode = ARM_CPU_MODE_UND; | |
3127 | *regno = sysm & 1 ? 13 : 14; | |
3128 | break; | |
3129 | case 0x1c ... 0x1d: /* 0b1110x : r14_mon, r13_mon */ | |
3130 | *tgtmode = ARM_CPU_MODE_MON; | |
3131 | *regno = sysm & 1 ? 13 : 14; | |
3132 | break; | |
3133 | case 0x1e ... 0x1f: /* 0b1111x : elr_hyp, r13_hyp */ | |
3134 | *tgtmode = ARM_CPU_MODE_HYP; | |
3135 | /* Arbitrarily pick 17 for ELR_Hyp (which is not a banked LR!) */ | |
3136 | *regno = sysm & 1 ? 13 : 17; | |
3137 | break; | |
3138 | default: /* unallocated */ | |
3139 | goto undef; | |
3140 | } | |
3141 | } | |
3142 | ||
3143 | /* Catch the 'accessing inaccessible register' cases we can detect | |
3144 | * at translate time. | |
3145 | */ | |
3146 | switch (*tgtmode) { | |
3147 | case ARM_CPU_MODE_MON: | |
3148 | if (!arm_dc_feature(s, ARM_FEATURE_EL3) || s->ns) { | |
3149 | goto undef; | |
3150 | } | |
3151 | if (s->current_el == 1) { | |
3152 | /* If we're in Secure EL1 (which implies that EL3 is AArch64) | |
3153 | * then accesses to Mon registers trap to EL3 | |
3154 | */ | |
3155 | exc_target = 3; | |
3156 | goto undef; | |
3157 | } | |
3158 | break; | |
3159 | case ARM_CPU_MODE_HYP: | |
aec4dd09 PM |
3160 | /* |
3161 | * SPSR_hyp and r13_hyp can only be accessed from Monitor mode | |
3162 | * (and so we can forbid accesses from EL2 or below). elr_hyp | |
3163 | * can be accessed also from Hyp mode, so forbid accesses from | |
3164 | * EL0 or EL1. | |
8bfd0550 | 3165 | */ |
aec4dd09 PM |
3166 | if (!arm_dc_feature(s, ARM_FEATURE_EL2) || s->current_el < 2 || |
3167 | (s->current_el < 3 && *regno != 17)) { | |
8bfd0550 PM |
3168 | goto undef; |
3169 | } | |
3170 | break; | |
3171 | default: | |
3172 | break; | |
3173 | } | |
3174 | ||
3175 | return true; | |
3176 | ||
3177 | undef: | |
3178 | /* If we get here then some access check did not pass */ | |
3179 | gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(), exc_target); | |
3180 | return false; | |
3181 | } | |
3182 | ||
3183 | static void gen_msr_banked(DisasContext *s, int r, int sysm, int rn) | |
3184 | { | |
3185 | TCGv_i32 tcg_reg, tcg_tgtmode, tcg_regno; | |
3186 | int tgtmode = 0, regno = 0; | |
3187 | ||
3188 | if (!msr_banked_access_decode(s, r, sysm, rn, &tgtmode, ®no)) { | |
3189 | return; | |
3190 | } | |
3191 | ||
3192 | /* Sync state because msr_banked() can raise exceptions */ | |
3193 | gen_set_condexec(s); | |
3194 | gen_set_pc_im(s, s->pc - 4); | |
3195 | tcg_reg = load_reg(s, rn); | |
3196 | tcg_tgtmode = tcg_const_i32(tgtmode); | |
3197 | tcg_regno = tcg_const_i32(regno); | |
3198 | gen_helper_msr_banked(cpu_env, tcg_reg, tcg_tgtmode, tcg_regno); | |
3199 | tcg_temp_free_i32(tcg_tgtmode); | |
3200 | tcg_temp_free_i32(tcg_regno); | |
3201 | tcg_temp_free_i32(tcg_reg); | |
dcba3a8d | 3202 | s->base.is_jmp = DISAS_UPDATE; |
8bfd0550 PM |
3203 | } |
3204 | ||
3205 | static void gen_mrs_banked(DisasContext *s, int r, int sysm, int rn) | |
3206 | { | |
3207 | TCGv_i32 tcg_reg, tcg_tgtmode, tcg_regno; | |
3208 | int tgtmode = 0, regno = 0; | |
3209 | ||
3210 | if (!msr_banked_access_decode(s, r, sysm, rn, &tgtmode, ®no)) { | |
3211 | return; | |
3212 | } | |
3213 | ||
3214 | /* Sync state because mrs_banked() can raise exceptions */ | |
3215 | gen_set_condexec(s); | |
3216 | gen_set_pc_im(s, s->pc - 4); | |
3217 | tcg_reg = tcg_temp_new_i32(); | |
3218 | tcg_tgtmode = tcg_const_i32(tgtmode); | |
3219 | tcg_regno = tcg_const_i32(regno); | |
3220 | gen_helper_mrs_banked(tcg_reg, cpu_env, tcg_tgtmode, tcg_regno); | |
3221 | tcg_temp_free_i32(tcg_tgtmode); | |
3222 | tcg_temp_free_i32(tcg_regno); | |
3223 | store_reg(s, rn, tcg_reg); | |
dcba3a8d | 3224 | s->base.is_jmp = DISAS_UPDATE; |
8bfd0550 PM |
3225 | } |
3226 | ||
fb0e8e79 PM |
3227 | /* Store value to PC as for an exception return (ie don't |
3228 | * mask bits). The subsequent call to gen_helper_cpsr_write_eret() | |
3229 | * will do the masking based on the new value of the Thumb bit. | |
3230 | */ | |
3231 | static void store_pc_exc_ret(DisasContext *s, TCGv_i32 pc) | |
b5ff1b31 | 3232 | { |
fb0e8e79 PM |
3233 | tcg_gen_mov_i32(cpu_R[15], pc); |
3234 | tcg_temp_free_i32(pc); | |
b5ff1b31 FB |
3235 | } |
3236 | ||
b0109805 | 3237 | /* Generate a v6 exception return. Marks both values as dead. */ |
39d5492a | 3238 | static void gen_rfe(DisasContext *s, TCGv_i32 pc, TCGv_i32 cpsr) |
2c0262af | 3239 | { |
fb0e8e79 PM |
3240 | store_pc_exc_ret(s, pc); |
3241 | /* The cpsr_write_eret helper will mask the low bits of PC | |
3242 | * appropriately depending on the new Thumb bit, so it must | |
3243 | * be called after storing the new PC. | |
3244 | */ | |
e69ad9df AL |
3245 | if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { |
3246 | gen_io_start(); | |
3247 | } | |
235ea1f5 | 3248 | gen_helper_cpsr_write_eret(cpu_env, cpsr); |
e69ad9df AL |
3249 | if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { |
3250 | gen_io_end(); | |
3251 | } | |
7d1b0095 | 3252 | tcg_temp_free_i32(cpsr); |
b29fd33d | 3253 | /* Must exit loop to check un-masked IRQs */ |
dcba3a8d | 3254 | s->base.is_jmp = DISAS_EXIT; |
9ee6e8bb | 3255 | } |
3b46e624 | 3256 | |
fb0e8e79 PM |
3257 | /* Generate an old-style exception return. Marks pc as dead. */ |
3258 | static void gen_exception_return(DisasContext *s, TCGv_i32 pc) | |
3259 | { | |
3260 | gen_rfe(s, pc, load_cpu_field(spsr)); | |
3261 | } | |
3262 | ||
c22edfeb AB |
3263 | /* |
3264 | * For WFI we will halt the vCPU until an IRQ. For WFE and YIELD we | |
3265 | * only call the helper when running single threaded TCG code to ensure | |
3266 | * the next round-robin scheduled vCPU gets a crack. In MTTCG mode we | |
3267 | * just skip this instruction. Currently the SEV/SEVL instructions | |
3268 | * which are *one* of many ways to wake the CPU from WFE are not | |
3269 | * implemented so we can't sleep like WFI does. | |
3270 | */ | |
9ee6e8bb PB |
3271 | static void gen_nop_hint(DisasContext *s, int val) |
3272 | { | |
3273 | switch (val) { | |
2399d4e7 EC |
3274 | /* When running in MTTCG we don't generate jumps to the yield and |
3275 | * WFE helpers as it won't affect the scheduling of other vCPUs. | |
3276 | * If we wanted to more completely model WFE/SEV so we don't busy | |
3277 | * spin unnecessarily we would need to do something more involved. | |
3278 | */ | |
c87e5a61 | 3279 | case 1: /* yield */ |
2399d4e7 | 3280 | if (!(tb_cflags(s->base.tb) & CF_PARALLEL)) { |
c22edfeb | 3281 | gen_set_pc_im(s, s->pc); |
dcba3a8d | 3282 | s->base.is_jmp = DISAS_YIELD; |
c22edfeb | 3283 | } |
c87e5a61 | 3284 | break; |
9ee6e8bb | 3285 | case 3: /* wfi */ |
eaed129d | 3286 | gen_set_pc_im(s, s->pc); |
dcba3a8d | 3287 | s->base.is_jmp = DISAS_WFI; |
9ee6e8bb PB |
3288 | break; |
3289 | case 2: /* wfe */ | |
2399d4e7 | 3290 | if (!(tb_cflags(s->base.tb) & CF_PARALLEL)) { |
c22edfeb | 3291 | gen_set_pc_im(s, s->pc); |
dcba3a8d | 3292 | s->base.is_jmp = DISAS_WFE; |
c22edfeb | 3293 | } |
72c1d3af | 3294 | break; |
9ee6e8bb | 3295 | case 4: /* sev */ |
12b10571 MR |
3296 | case 5: /* sevl */ |
3297 | /* TODO: Implement SEV, SEVL and WFE. May help SMP performance. */ | |
9ee6e8bb PB |
3298 | default: /* nop */ |
3299 | break; | |
3300 | } | |
3301 | } | |
99c475ab | 3302 | |
ad69471c | 3303 | #define CPU_V001 cpu_V0, cpu_V0, cpu_V1 |
9ee6e8bb | 3304 | |
39d5492a | 3305 | static inline void gen_neon_add(int size, TCGv_i32 t0, TCGv_i32 t1) |
9ee6e8bb PB |
3306 | { |
3307 | switch (size) { | |
dd8fbd78 FN |
3308 | case 0: gen_helper_neon_add_u8(t0, t0, t1); break; |
3309 | case 1: gen_helper_neon_add_u16(t0, t0, t1); break; | |
3310 | case 2: tcg_gen_add_i32(t0, t0, t1); break; | |
62698be3 | 3311 | default: abort(); |
9ee6e8bb | 3312 | } |
9ee6e8bb PB |
3313 | } |
3314 | ||
39d5492a | 3315 | static inline void gen_neon_rsb(int size, TCGv_i32 t0, TCGv_i32 t1) |
ad69471c PB |
3316 | { |
3317 | switch (size) { | |
dd8fbd78 FN |
3318 | case 0: gen_helper_neon_sub_u8(t0, t1, t0); break; |
3319 | case 1: gen_helper_neon_sub_u16(t0, t1, t0); break; | |
3320 | case 2: tcg_gen_sub_i32(t0, t1, t0); break; | |
ad69471c PB |
3321 | default: return; |
3322 | } | |
3323 | } | |
3324 | ||
3325 | /* 32-bit pairwise ops end up the same as the elementwise versions. */ | |
9ecd3c5c RH |
3326 | #define gen_helper_neon_pmax_s32 tcg_gen_smax_i32 |
3327 | #define gen_helper_neon_pmax_u32 tcg_gen_umax_i32 | |
3328 | #define gen_helper_neon_pmin_s32 tcg_gen_smin_i32 | |
3329 | #define gen_helper_neon_pmin_u32 tcg_gen_umin_i32 | |
ad69471c | 3330 | |
ad69471c PB |
3331 | #define GEN_NEON_INTEGER_OP_ENV(name) do { \ |
3332 | switch ((size << 1) | u) { \ | |
3333 | case 0: \ | |
dd8fbd78 | 3334 | gen_helper_neon_##name##_s8(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3335 | break; \ |
3336 | case 1: \ | |
dd8fbd78 | 3337 | gen_helper_neon_##name##_u8(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3338 | break; \ |
3339 | case 2: \ | |
dd8fbd78 | 3340 | gen_helper_neon_##name##_s16(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3341 | break; \ |
3342 | case 3: \ | |
dd8fbd78 | 3343 | gen_helper_neon_##name##_u16(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3344 | break; \ |
3345 | case 4: \ | |
dd8fbd78 | 3346 | gen_helper_neon_##name##_s32(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3347 | break; \ |
3348 | case 5: \ | |
dd8fbd78 | 3349 | gen_helper_neon_##name##_u32(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3350 | break; \ |
3351 | default: return 1; \ | |
3352 | }} while (0) | |
9ee6e8bb PB |
3353 | |
3354 | #define GEN_NEON_INTEGER_OP(name) do { \ | |
3355 | switch ((size << 1) | u) { \ | |
ad69471c | 3356 | case 0: \ |
dd8fbd78 | 3357 | gen_helper_neon_##name##_s8(tmp, tmp, tmp2); \ |
ad69471c PB |
3358 | break; \ |
3359 | case 1: \ | |
dd8fbd78 | 3360 | gen_helper_neon_##name##_u8(tmp, tmp, tmp2); \ |
ad69471c PB |
3361 | break; \ |
3362 | case 2: \ | |
dd8fbd78 | 3363 | gen_helper_neon_##name##_s16(tmp, tmp, tmp2); \ |
ad69471c PB |
3364 | break; \ |
3365 | case 3: \ | |
dd8fbd78 | 3366 | gen_helper_neon_##name##_u16(tmp, tmp, tmp2); \ |
ad69471c PB |
3367 | break; \ |
3368 | case 4: \ | |
dd8fbd78 | 3369 | gen_helper_neon_##name##_s32(tmp, tmp, tmp2); \ |
ad69471c PB |
3370 | break; \ |
3371 | case 5: \ | |
dd8fbd78 | 3372 | gen_helper_neon_##name##_u32(tmp, tmp, tmp2); \ |
ad69471c | 3373 | break; \ |
9ee6e8bb PB |
3374 | default: return 1; \ |
3375 | }} while (0) | |
3376 | ||
39d5492a | 3377 | static TCGv_i32 neon_load_scratch(int scratch) |
9ee6e8bb | 3378 | { |
39d5492a | 3379 | TCGv_i32 tmp = tcg_temp_new_i32(); |
dd8fbd78 FN |
3380 | tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
3381 | return tmp; | |
9ee6e8bb PB |
3382 | } |
3383 | ||
39d5492a | 3384 | static void neon_store_scratch(int scratch, TCGv_i32 var) |
9ee6e8bb | 3385 | { |
dd8fbd78 | 3386 | tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
7d1b0095 | 3387 | tcg_temp_free_i32(var); |
9ee6e8bb PB |
3388 | } |
3389 | ||
39d5492a | 3390 | static inline TCGv_i32 neon_get_scalar(int size, int reg) |
9ee6e8bb | 3391 | { |
39d5492a | 3392 | TCGv_i32 tmp; |
9ee6e8bb | 3393 | if (size == 1) { |
0fad6efc PM |
3394 | tmp = neon_load_reg(reg & 7, reg >> 4); |
3395 | if (reg & 8) { | |
dd8fbd78 | 3396 | gen_neon_dup_high16(tmp); |
0fad6efc PM |
3397 | } else { |
3398 | gen_neon_dup_low16(tmp); | |
dd8fbd78 | 3399 | } |
0fad6efc PM |
3400 | } else { |
3401 | tmp = neon_load_reg(reg & 15, reg >> 4); | |
9ee6e8bb | 3402 | } |
dd8fbd78 | 3403 | return tmp; |
9ee6e8bb PB |
3404 | } |
3405 | ||
02acedf9 | 3406 | static int gen_neon_unzip(int rd, int rm, int size, int q) |
19457615 | 3407 | { |
b13708bb RH |
3408 | TCGv_ptr pd, pm; |
3409 | ||
600b828c | 3410 | if (!q && size == 2) { |
02acedf9 PM |
3411 | return 1; |
3412 | } | |
b13708bb RH |
3413 | pd = vfp_reg_ptr(true, rd); |
3414 | pm = vfp_reg_ptr(true, rm); | |
02acedf9 PM |
3415 | if (q) { |
3416 | switch (size) { | |
3417 | case 0: | |
b13708bb | 3418 | gen_helper_neon_qunzip8(pd, pm); |
02acedf9 PM |
3419 | break; |
3420 | case 1: | |
b13708bb | 3421 | gen_helper_neon_qunzip16(pd, pm); |
02acedf9 PM |
3422 | break; |
3423 | case 2: | |
b13708bb | 3424 | gen_helper_neon_qunzip32(pd, pm); |
02acedf9 PM |
3425 | break; |
3426 | default: | |
3427 | abort(); | |
3428 | } | |
3429 | } else { | |
3430 | switch (size) { | |
3431 | case 0: | |
b13708bb | 3432 | gen_helper_neon_unzip8(pd, pm); |
02acedf9 PM |
3433 | break; |
3434 | case 1: | |
b13708bb | 3435 | gen_helper_neon_unzip16(pd, pm); |
02acedf9 PM |
3436 | break; |
3437 | default: | |
3438 | abort(); | |
3439 | } | |
3440 | } | |
b13708bb RH |
3441 | tcg_temp_free_ptr(pd); |
3442 | tcg_temp_free_ptr(pm); | |
02acedf9 | 3443 | return 0; |
19457615 FN |
3444 | } |
3445 | ||
d68a6f3a | 3446 | static int gen_neon_zip(int rd, int rm, int size, int q) |
19457615 | 3447 | { |
b13708bb RH |
3448 | TCGv_ptr pd, pm; |
3449 | ||
600b828c | 3450 | if (!q && size == 2) { |
d68a6f3a PM |
3451 | return 1; |
3452 | } | |
b13708bb RH |
3453 | pd = vfp_reg_ptr(true, rd); |
3454 | pm = vfp_reg_ptr(true, rm); | |
d68a6f3a PM |
3455 | if (q) { |
3456 | switch (size) { | |
3457 | case 0: | |
b13708bb | 3458 | gen_helper_neon_qzip8(pd, pm); |
d68a6f3a PM |
3459 | break; |
3460 | case 1: | |
b13708bb | 3461 | gen_helper_neon_qzip16(pd, pm); |
d68a6f3a PM |
3462 | break; |
3463 | case 2: | |
b13708bb | 3464 | gen_helper_neon_qzip32(pd, pm); |
d68a6f3a PM |
3465 | break; |
3466 | default: | |
3467 | abort(); | |
3468 | } | |
3469 | } else { | |
3470 | switch (size) { | |
3471 | case 0: | |
b13708bb | 3472 | gen_helper_neon_zip8(pd, pm); |
d68a6f3a PM |
3473 | break; |
3474 | case 1: | |
b13708bb | 3475 | gen_helper_neon_zip16(pd, pm); |
d68a6f3a PM |
3476 | break; |
3477 | default: | |
3478 | abort(); | |
3479 | } | |
3480 | } | |
b13708bb RH |
3481 | tcg_temp_free_ptr(pd); |
3482 | tcg_temp_free_ptr(pm); | |
d68a6f3a | 3483 | return 0; |
19457615 FN |
3484 | } |
3485 | ||
39d5492a | 3486 | static void gen_neon_trn_u8(TCGv_i32 t0, TCGv_i32 t1) |
19457615 | 3487 | { |
39d5492a | 3488 | TCGv_i32 rd, tmp; |
19457615 | 3489 | |
7d1b0095 PM |
3490 | rd = tcg_temp_new_i32(); |
3491 | tmp = tcg_temp_new_i32(); | |
19457615 FN |
3492 | |
3493 | tcg_gen_shli_i32(rd, t0, 8); | |
3494 | tcg_gen_andi_i32(rd, rd, 0xff00ff00); | |
3495 | tcg_gen_andi_i32(tmp, t1, 0x00ff00ff); | |
3496 | tcg_gen_or_i32(rd, rd, tmp); | |
3497 | ||
3498 | tcg_gen_shri_i32(t1, t1, 8); | |
3499 | tcg_gen_andi_i32(t1, t1, 0x00ff00ff); | |
3500 | tcg_gen_andi_i32(tmp, t0, 0xff00ff00); | |
3501 | tcg_gen_or_i32(t1, t1, tmp); | |
3502 | tcg_gen_mov_i32(t0, rd); | |
3503 | ||
7d1b0095 PM |
3504 | tcg_temp_free_i32(tmp); |
3505 | tcg_temp_free_i32(rd); | |
19457615 FN |
3506 | } |
3507 | ||
39d5492a | 3508 | static void gen_neon_trn_u16(TCGv_i32 t0, TCGv_i32 t1) |
19457615 | 3509 | { |
39d5492a | 3510 | TCGv_i32 rd, tmp; |
19457615 | 3511 | |
7d1b0095 PM |
3512 | rd = tcg_temp_new_i32(); |
3513 | tmp = tcg_temp_new_i32(); | |
19457615 FN |
3514 | |
3515 | tcg_gen_shli_i32(rd, t0, 16); | |
3516 | tcg_gen_andi_i32(tmp, t1, 0xffff); | |
3517 | tcg_gen_or_i32(rd, rd, tmp); | |
3518 | tcg_gen_shri_i32(t1, t1, 16); | |
3519 | tcg_gen_andi_i32(tmp, t0, 0xffff0000); | |
3520 | tcg_gen_or_i32(t1, t1, tmp); | |
3521 | tcg_gen_mov_i32(t0, rd); | |
3522 | ||
7d1b0095 PM |
3523 | tcg_temp_free_i32(tmp); |
3524 | tcg_temp_free_i32(rd); | |
19457615 FN |
3525 | } |
3526 | ||
3527 | ||
9ee6e8bb PB |
3528 | static struct { |
3529 | int nregs; | |
3530 | int interleave; | |
3531 | int spacing; | |
308e5636 | 3532 | } const neon_ls_element_type[11] = { |
ac55d007 RH |
3533 | {1, 4, 1}, |
3534 | {1, 4, 2}, | |
9ee6e8bb | 3535 | {4, 1, 1}, |
ac55d007 RH |
3536 | {2, 2, 2}, |
3537 | {1, 3, 1}, | |
3538 | {1, 3, 2}, | |
9ee6e8bb PB |
3539 | {3, 1, 1}, |
3540 | {1, 1, 1}, | |
ac55d007 RH |
3541 | {1, 2, 1}, |
3542 | {1, 2, 2}, | |
9ee6e8bb PB |
3543 | {2, 1, 1} |
3544 | }; | |
3545 | ||
3546 | /* Translate a NEON load/store element instruction. Return nonzero if the | |
3547 | instruction is invalid. */ | |
7dcc1f89 | 3548 | static int disas_neon_ls_insn(DisasContext *s, uint32_t insn) |
9ee6e8bb PB |
3549 | { |
3550 | int rd, rn, rm; | |
3551 | int op; | |
3552 | int nregs; | |
3553 | int interleave; | |
84496233 | 3554 | int spacing; |
9ee6e8bb PB |
3555 | int stride; |
3556 | int size; | |
3557 | int reg; | |
9ee6e8bb | 3558 | int load; |
9ee6e8bb | 3559 | int n; |
7377c2c9 | 3560 | int vec_size; |
ac55d007 RH |
3561 | int mmu_idx; |
3562 | TCGMemOp endian; | |
39d5492a PM |
3563 | TCGv_i32 addr; |
3564 | TCGv_i32 tmp; | |
3565 | TCGv_i32 tmp2; | |
84496233 | 3566 | TCGv_i64 tmp64; |
9ee6e8bb | 3567 | |
2c7ffc41 PM |
3568 | /* FIXME: this access check should not take precedence over UNDEF |
3569 | * for invalid encodings; we will generate incorrect syndrome information | |
3570 | * for attempts to execute invalid vfp/neon encodings with FP disabled. | |
3571 | */ | |
9dbbc748 | 3572 | if (s->fp_excp_el) { |
2c7ffc41 | 3573 | gen_exception_insn(s, 4, EXCP_UDEF, |
4be42f40 | 3574 | syn_simd_access_trap(1, 0xe, false), s->fp_excp_el); |
2c7ffc41 PM |
3575 | return 0; |
3576 | } | |
3577 | ||
5df8bac1 | 3578 | if (!s->vfp_enabled) |
9ee6e8bb PB |
3579 | return 1; |
3580 | VFP_DREG_D(rd, insn); | |
3581 | rn = (insn >> 16) & 0xf; | |
3582 | rm = insn & 0xf; | |
3583 | load = (insn & (1 << 21)) != 0; | |
ac55d007 RH |
3584 | endian = s->be_data; |
3585 | mmu_idx = get_mem_index(s); | |
9ee6e8bb PB |
3586 | if ((insn & (1 << 23)) == 0) { |
3587 | /* Load store all elements. */ | |
3588 | op = (insn >> 8) & 0xf; | |
3589 | size = (insn >> 6) & 3; | |
84496233 | 3590 | if (op > 10) |
9ee6e8bb | 3591 | return 1; |
f2dd89d0 PM |
3592 | /* Catch UNDEF cases for bad values of align field */ |
3593 | switch (op & 0xc) { | |
3594 | case 4: | |
3595 | if (((insn >> 5) & 1) == 1) { | |
3596 | return 1; | |
3597 | } | |
3598 | break; | |
3599 | case 8: | |
3600 | if (((insn >> 4) & 3) == 3) { | |
3601 | return 1; | |
3602 | } | |
3603 | break; | |
3604 | default: | |
3605 | break; | |
3606 | } | |
9ee6e8bb PB |
3607 | nregs = neon_ls_element_type[op].nregs; |
3608 | interleave = neon_ls_element_type[op].interleave; | |
84496233 | 3609 | spacing = neon_ls_element_type[op].spacing; |
ac55d007 | 3610 | if (size == 3 && (interleave | spacing) != 1) { |
84496233 | 3611 | return 1; |
ac55d007 | 3612 | } |
e23f12b3 RH |
3613 | /* For our purposes, bytes are always little-endian. */ |
3614 | if (size == 0) { | |
3615 | endian = MO_LE; | |
3616 | } | |
3617 | /* Consecutive little-endian elements from a single register | |
3618 | * can be promoted to a larger little-endian operation. | |
3619 | */ | |
3620 | if (interleave == 1 && endian == MO_LE) { | |
3621 | size = 3; | |
3622 | } | |
ac55d007 | 3623 | tmp64 = tcg_temp_new_i64(); |
e318a60b | 3624 | addr = tcg_temp_new_i32(); |
ac55d007 | 3625 | tmp2 = tcg_const_i32(1 << size); |
dcc65026 | 3626 | load_reg_var(s, addr, rn); |
9ee6e8bb | 3627 | for (reg = 0; reg < nregs; reg++) { |
ac55d007 RH |
3628 | for (n = 0; n < 8 >> size; n++) { |
3629 | int xs; | |
3630 | for (xs = 0; xs < interleave; xs++) { | |
3631 | int tt = rd + reg + spacing * xs; | |
3632 | ||
3633 | if (load) { | |
3634 | gen_aa32_ld_i64(s, tmp64, addr, mmu_idx, endian | size); | |
3635 | neon_store_element64(tt, n, size, tmp64); | |
3636 | } else { | |
3637 | neon_load_element64(tmp64, tt, n, size); | |
3638 | gen_aa32_st_i64(s, tmp64, addr, mmu_idx, endian | size); | |
9ee6e8bb | 3639 | } |
ac55d007 | 3640 | tcg_gen_add_i32(addr, addr, tmp2); |
9ee6e8bb PB |
3641 | } |
3642 | } | |
9ee6e8bb | 3643 | } |
e318a60b | 3644 | tcg_temp_free_i32(addr); |
ac55d007 RH |
3645 | tcg_temp_free_i32(tmp2); |
3646 | tcg_temp_free_i64(tmp64); | |
3647 | stride = nregs * interleave * 8; | |
9ee6e8bb PB |
3648 | } else { |
3649 | size = (insn >> 10) & 3; | |
3650 | if (size == 3) { | |
3651 | /* Load single element to all lanes. */ | |
8e18cde3 PM |
3652 | int a = (insn >> 4) & 1; |
3653 | if (!load) { | |
9ee6e8bb | 3654 | return 1; |
8e18cde3 | 3655 | } |
9ee6e8bb PB |
3656 | size = (insn >> 6) & 3; |
3657 | nregs = ((insn >> 8) & 3) + 1; | |
8e18cde3 PM |
3658 | |
3659 | if (size == 3) { | |
3660 | if (nregs != 4 || a == 0) { | |
9ee6e8bb | 3661 | return 1; |
99c475ab | 3662 | } |
8e18cde3 PM |
3663 | /* For VLD4 size==3 a == 1 means 32 bits at 16 byte alignment */ |
3664 | size = 2; | |
3665 | } | |
3666 | if (nregs == 1 && a == 1 && size == 0) { | |
3667 | return 1; | |
3668 | } | |
3669 | if (nregs == 3 && a == 1) { | |
3670 | return 1; | |
3671 | } | |
e318a60b | 3672 | addr = tcg_temp_new_i32(); |
8e18cde3 | 3673 | load_reg_var(s, addr, rn); |
7377c2c9 RH |
3674 | |
3675 | /* VLD1 to all lanes: bit 5 indicates how many Dregs to write. | |
3676 | * VLD2/3/4 to all lanes: bit 5 indicates register stride. | |
3677 | */ | |
3678 | stride = (insn & (1 << 5)) ? 2 : 1; | |
3679 | vec_size = nregs == 1 ? stride * 8 : 8; | |
3680 | ||
3681 | tmp = tcg_temp_new_i32(); | |
3682 | for (reg = 0; reg < nregs; reg++) { | |
3683 | gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), | |
3684 | s->be_data | size); | |
3685 | if ((rd & 1) && vec_size == 16) { | |
3686 | /* We cannot write 16 bytes at once because the | |
3687 | * destination is unaligned. | |
3688 | */ | |
3689 | tcg_gen_gvec_dup_i32(size, neon_reg_offset(rd, 0), | |
3690 | 8, 8, tmp); | |
3691 | tcg_gen_gvec_mov(0, neon_reg_offset(rd + 1, 0), | |
3692 | neon_reg_offset(rd, 0), 8, 8); | |
3693 | } else { | |
3694 | tcg_gen_gvec_dup_i32(size, neon_reg_offset(rd, 0), | |
3695 | vec_size, vec_size, tmp); | |
8e18cde3 | 3696 | } |
7377c2c9 RH |
3697 | tcg_gen_addi_i32(addr, addr, 1 << size); |
3698 | rd += stride; | |
9ee6e8bb | 3699 | } |
7377c2c9 | 3700 | tcg_temp_free_i32(tmp); |
e318a60b | 3701 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
3702 | stride = (1 << size) * nregs; |
3703 | } else { | |
3704 | /* Single element. */ | |
93262b16 | 3705 | int idx = (insn >> 4) & 0xf; |
2d6ac920 | 3706 | int reg_idx; |
9ee6e8bb PB |
3707 | switch (size) { |
3708 | case 0: | |
2d6ac920 | 3709 | reg_idx = (insn >> 5) & 7; |
9ee6e8bb PB |
3710 | stride = 1; |
3711 | break; | |
3712 | case 1: | |
2d6ac920 | 3713 | reg_idx = (insn >> 6) & 3; |
9ee6e8bb PB |
3714 | stride = (insn & (1 << 5)) ? 2 : 1; |
3715 | break; | |
3716 | case 2: | |
2d6ac920 | 3717 | reg_idx = (insn >> 7) & 1; |
9ee6e8bb PB |
3718 | stride = (insn & (1 << 6)) ? 2 : 1; |
3719 | break; | |
3720 | default: | |
3721 | abort(); | |
3722 | } | |
3723 | nregs = ((insn >> 8) & 3) + 1; | |
93262b16 PM |
3724 | /* Catch the UNDEF cases. This is unavoidably a bit messy. */ |
3725 | switch (nregs) { | |
3726 | case 1: | |
3727 | if (((idx & (1 << size)) != 0) || | |
3728 | (size == 2 && ((idx & 3) == 1 || (idx & 3) == 2))) { | |
3729 | return 1; | |
3730 | } | |
3731 | break; | |
3732 | case 3: | |
3733 | if ((idx & 1) != 0) { | |
3734 | return 1; | |
3735 | } | |
3736 | /* fall through */ | |
3737 | case 2: | |
3738 | if (size == 2 && (idx & 2) != 0) { | |
3739 | return 1; | |
3740 | } | |
3741 | break; | |
3742 | case 4: | |
3743 | if ((size == 2) && ((idx & 3) == 3)) { | |
3744 | return 1; | |
3745 | } | |
3746 | break; | |
3747 | default: | |
3748 | abort(); | |
3749 | } | |
3750 | if ((rd + stride * (nregs - 1)) > 31) { | |
3751 | /* Attempts to write off the end of the register file | |
3752 | * are UNPREDICTABLE; we choose to UNDEF because otherwise | |
3753 | * the neon_load_reg() would write off the end of the array. | |
3754 | */ | |
3755 | return 1; | |
3756 | } | |
2d6ac920 | 3757 | tmp = tcg_temp_new_i32(); |
e318a60b | 3758 | addr = tcg_temp_new_i32(); |
dcc65026 | 3759 | load_reg_var(s, addr, rn); |
9ee6e8bb PB |
3760 | for (reg = 0; reg < nregs; reg++) { |
3761 | if (load) { | |
2d6ac920 RH |
3762 | gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), |
3763 | s->be_data | size); | |
3764 | neon_store_element(rd, reg_idx, size, tmp); | |
9ee6e8bb | 3765 | } else { /* Store */ |
2d6ac920 RH |
3766 | neon_load_element(tmp, rd, reg_idx, size); |
3767 | gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), | |
3768 | s->be_data | size); | |
99c475ab | 3769 | } |
9ee6e8bb | 3770 | rd += stride; |
1b2b1e54 | 3771 | tcg_gen_addi_i32(addr, addr, 1 << size); |
99c475ab | 3772 | } |
e318a60b | 3773 | tcg_temp_free_i32(addr); |
2d6ac920 | 3774 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 3775 | stride = nregs * (1 << size); |
99c475ab | 3776 | } |
9ee6e8bb PB |
3777 | } |
3778 | if (rm != 15) { | |
39d5492a | 3779 | TCGv_i32 base; |
b26eefb6 PB |
3780 | |
3781 | base = load_reg(s, rn); | |
9ee6e8bb | 3782 | if (rm == 13) { |
b26eefb6 | 3783 | tcg_gen_addi_i32(base, base, stride); |
9ee6e8bb | 3784 | } else { |
39d5492a | 3785 | TCGv_i32 index; |
b26eefb6 PB |
3786 | index = load_reg(s, rm); |
3787 | tcg_gen_add_i32(base, base, index); | |
7d1b0095 | 3788 | tcg_temp_free_i32(index); |
9ee6e8bb | 3789 | } |
b26eefb6 | 3790 | store_reg(s, rn, base); |
9ee6e8bb PB |
3791 | } |
3792 | return 0; | |
3793 | } | |
3b46e624 | 3794 | |
39d5492a | 3795 | static inline void gen_neon_narrow(int size, TCGv_i32 dest, TCGv_i64 src) |
ad69471c PB |
3796 | { |
3797 | switch (size) { | |
3798 | case 0: gen_helper_neon_narrow_u8(dest, src); break; | |
3799 | case 1: gen_helper_neon_narrow_u16(dest, src); break; | |
ecc7b3aa | 3800 | case 2: tcg_gen_extrl_i64_i32(dest, src); break; |
ad69471c PB |
3801 | default: abort(); |
3802 | } | |
3803 | } | |
3804 | ||
39d5492a | 3805 | static inline void gen_neon_narrow_sats(int size, TCGv_i32 dest, TCGv_i64 src) |
ad69471c PB |
3806 | { |
3807 | switch (size) { | |
02da0b2d PM |
3808 | case 0: gen_helper_neon_narrow_sat_s8(dest, cpu_env, src); break; |
3809 | case 1: gen_helper_neon_narrow_sat_s16(dest, cpu_env, src); break; | |
3810 | case 2: gen_helper_neon_narrow_sat_s32(dest, cpu_env, src); break; | |
ad69471c PB |
3811 | default: abort(); |
3812 | } | |
3813 | } | |
3814 | ||
39d5492a | 3815 | static inline void gen_neon_narrow_satu(int size, TCGv_i32 dest, TCGv_i64 src) |
ad69471c PB |
3816 | { |
3817 | switch (size) { | |
02da0b2d PM |
3818 | case 0: gen_helper_neon_narrow_sat_u8(dest, cpu_env, src); break; |
3819 | case 1: gen_helper_neon_narrow_sat_u16(dest, cpu_env, src); break; | |
3820 | case 2: gen_helper_neon_narrow_sat_u32(dest, cpu_env, src); break; | |
ad69471c PB |
3821 | default: abort(); |
3822 | } | |
3823 | } | |
3824 | ||
39d5492a | 3825 | static inline void gen_neon_unarrow_sats(int size, TCGv_i32 dest, TCGv_i64 src) |
af1bbf30 JR |
3826 | { |
3827 | switch (size) { | |
02da0b2d PM |
3828 | case 0: gen_helper_neon_unarrow_sat8(dest, cpu_env, src); break; |
3829 | case 1: gen_helper_neon_unarrow_sat16(dest, cpu_env, src); break; | |
3830 | case 2: gen_helper_neon_unarrow_sat32(dest, cpu_env, src); break; | |
af1bbf30 JR |
3831 | default: abort(); |
3832 | } | |
3833 | } | |
3834 | ||
39d5492a | 3835 | static inline void gen_neon_shift_narrow(int size, TCGv_i32 var, TCGv_i32 shift, |
ad69471c PB |
3836 | int q, int u) |
3837 | { | |
3838 | if (q) { | |
3839 | if (u) { | |
3840 | switch (size) { | |
3841 | case 1: gen_helper_neon_rshl_u16(var, var, shift); break; | |
3842 | case 2: gen_helper_neon_rshl_u32(var, var, shift); break; | |
3843 | default: abort(); | |
3844 | } | |
3845 | } else { | |
3846 | switch (size) { | |
3847 | case 1: gen_helper_neon_rshl_s16(var, var, shift); break; | |
3848 | case 2: gen_helper_neon_rshl_s32(var, var, shift); break; | |
3849 | default: abort(); | |
3850 | } | |
3851 | } | |
3852 | } else { | |
3853 | if (u) { | |
3854 | switch (size) { | |
b408a9b0 CL |
3855 | case 1: gen_helper_neon_shl_u16(var, var, shift); break; |
3856 | case 2: gen_helper_neon_shl_u32(var, var, shift); break; | |
ad69471c PB |
3857 | default: abort(); |
3858 | } | |
3859 | } else { | |
3860 | switch (size) { | |
3861 | case 1: gen_helper_neon_shl_s16(var, var, shift); break; | |
3862 | case 2: gen_helper_neon_shl_s32(var, var, shift); break; | |
3863 | default: abort(); | |
3864 | } | |
3865 | } | |
3866 | } | |
3867 | } | |
3868 | ||
39d5492a | 3869 | static inline void gen_neon_widen(TCGv_i64 dest, TCGv_i32 src, int size, int u) |
ad69471c PB |
3870 | { |
3871 | if (u) { | |
3872 | switch (size) { | |
3873 | case 0: gen_helper_neon_widen_u8(dest, src); break; | |
3874 | case 1: gen_helper_neon_widen_u16(dest, src); break; | |
3875 | case 2: tcg_gen_extu_i32_i64(dest, src); break; | |
3876 | default: abort(); | |
3877 | } | |
3878 | } else { | |
3879 | switch (size) { | |
3880 | case 0: gen_helper_neon_widen_s8(dest, src); break; | |
3881 | case 1: gen_helper_neon_widen_s16(dest, src); break; | |
3882 | case 2: tcg_gen_ext_i32_i64(dest, src); break; | |
3883 | default: abort(); | |
3884 | } | |
3885 | } | |
7d1b0095 | 3886 | tcg_temp_free_i32(src); |
ad69471c PB |
3887 | } |
3888 | ||
3889 | static inline void gen_neon_addl(int size) | |
3890 | { | |
3891 | switch (size) { | |
3892 | case 0: gen_helper_neon_addl_u16(CPU_V001); break; | |
3893 | case 1: gen_helper_neon_addl_u32(CPU_V001); break; | |
3894 | case 2: tcg_gen_add_i64(CPU_V001); break; | |
3895 | default: abort(); | |
3896 | } | |
3897 | } | |
3898 | ||
3899 | static inline void gen_neon_subl(int size) | |
3900 | { | |
3901 | switch (size) { | |
3902 | case 0: gen_helper_neon_subl_u16(CPU_V001); break; | |
3903 | case 1: gen_helper_neon_subl_u32(CPU_V001); break; | |
3904 | case 2: tcg_gen_sub_i64(CPU_V001); break; | |
3905 | default: abort(); | |
3906 | } | |
3907 | } | |
3908 | ||
a7812ae4 | 3909 | static inline void gen_neon_negl(TCGv_i64 var, int size) |
ad69471c PB |
3910 | { |
3911 | switch (size) { | |
3912 | case 0: gen_helper_neon_negl_u16(var, var); break; | |
3913 | case 1: gen_helper_neon_negl_u32(var, var); break; | |
ee6fa559 PM |
3914 | case 2: |
3915 | tcg_gen_neg_i64(var, var); | |
3916 | break; | |
ad69471c PB |
3917 | default: abort(); |
3918 | } | |
3919 | } | |
3920 | ||
a7812ae4 | 3921 | static inline void gen_neon_addl_saturate(TCGv_i64 op0, TCGv_i64 op1, int size) |
ad69471c PB |
3922 | { |
3923 | switch (size) { | |
02da0b2d PM |
3924 | case 1: gen_helper_neon_addl_saturate_s32(op0, cpu_env, op0, op1); break; |
3925 | case 2: gen_helper_neon_addl_saturate_s64(op0, cpu_env, op0, op1); break; | |
ad69471c PB |
3926 | default: abort(); |
3927 | } | |
3928 | } | |
3929 | ||
39d5492a PM |
3930 | static inline void gen_neon_mull(TCGv_i64 dest, TCGv_i32 a, TCGv_i32 b, |
3931 | int size, int u) | |
ad69471c | 3932 | { |
a7812ae4 | 3933 | TCGv_i64 tmp; |
ad69471c PB |
3934 | |
3935 | switch ((size << 1) | u) { | |
3936 | case 0: gen_helper_neon_mull_s8(dest, a, b); break; | |
3937 | case 1: gen_helper_neon_mull_u8(dest, a, b); break; | |
3938 | case 2: gen_helper_neon_mull_s16(dest, a, b); break; | |
3939 | case 3: gen_helper_neon_mull_u16(dest, a, b); break; | |
3940 | case 4: | |
3941 | tmp = gen_muls_i64_i32(a, b); | |
3942 | tcg_gen_mov_i64(dest, tmp); | |
7d2aabe2 | 3943 | tcg_temp_free_i64(tmp); |
ad69471c PB |
3944 | break; |
3945 | case 5: | |
3946 | tmp = gen_mulu_i64_i32(a, b); | |
3947 | tcg_gen_mov_i64(dest, tmp); | |
7d2aabe2 | 3948 | tcg_temp_free_i64(tmp); |
ad69471c PB |
3949 | break; |
3950 | default: abort(); | |
3951 | } | |
c6067f04 CL |
3952 | |
3953 | /* gen_helper_neon_mull_[su]{8|16} do not free their parameters. | |
3954 | Don't forget to clean them now. */ | |
3955 | if (size < 2) { | |
7d1b0095 PM |
3956 | tcg_temp_free_i32(a); |
3957 | tcg_temp_free_i32(b); | |
c6067f04 | 3958 | } |
ad69471c PB |
3959 | } |
3960 | ||
39d5492a PM |
3961 | static void gen_neon_narrow_op(int op, int u, int size, |
3962 | TCGv_i32 dest, TCGv_i64 src) | |
c33171c7 PM |
3963 | { |
3964 | if (op) { | |
3965 | if (u) { | |
3966 | gen_neon_unarrow_sats(size, dest, src); | |
3967 | } else { | |
3968 | gen_neon_narrow(size, dest, src); | |
3969 | } | |
3970 | } else { | |
3971 | if (u) { | |
3972 | gen_neon_narrow_satu(size, dest, src); | |
3973 | } else { | |
3974 | gen_neon_narrow_sats(size, dest, src); | |
3975 | } | |
3976 | } | |
3977 | } | |
3978 | ||
62698be3 PM |
3979 | /* Symbolic constants for op fields for Neon 3-register same-length. |
3980 | * The values correspond to bits [11:8,4]; see the ARM ARM DDI0406B | |
3981 | * table A7-9. | |
3982 | */ | |
3983 | #define NEON_3R_VHADD 0 | |
3984 | #define NEON_3R_VQADD 1 | |
3985 | #define NEON_3R_VRHADD 2 | |
3986 | #define NEON_3R_LOGIC 3 /* VAND,VBIC,VORR,VMOV,VORN,VEOR,VBIF,VBIT,VBSL */ | |
3987 | #define NEON_3R_VHSUB 4 | |
3988 | #define NEON_3R_VQSUB 5 | |
3989 | #define NEON_3R_VCGT 6 | |
3990 | #define NEON_3R_VCGE 7 | |
3991 | #define NEON_3R_VSHL 8 | |
3992 | #define NEON_3R_VQSHL 9 | |
3993 | #define NEON_3R_VRSHL 10 | |
3994 | #define NEON_3R_VQRSHL 11 | |
3995 | #define NEON_3R_VMAX 12 | |
3996 | #define NEON_3R_VMIN 13 | |
3997 | #define NEON_3R_VABD 14 | |
3998 | #define NEON_3R_VABA 15 | |
3999 | #define NEON_3R_VADD_VSUB 16 | |
4000 | #define NEON_3R_VTST_VCEQ 17 | |
4a7832b0 | 4001 | #define NEON_3R_VML 18 /* VMLA, VMLS */ |
62698be3 PM |
4002 | #define NEON_3R_VMUL 19 |
4003 | #define NEON_3R_VPMAX 20 | |
4004 | #define NEON_3R_VPMIN 21 | |
4005 | #define NEON_3R_VQDMULH_VQRDMULH 22 | |
36a71934 | 4006 | #define NEON_3R_VPADD_VQRDMLAH 23 |
f1ecb913 | 4007 | #define NEON_3R_SHA 24 /* SHA1C,SHA1P,SHA1M,SHA1SU0,SHA256H{2},SHA256SU1 */ |
36a71934 | 4008 | #define NEON_3R_VFM_VQRDMLSH 25 /* VFMA, VFMS, VQRDMLSH */ |
62698be3 PM |
4009 | #define NEON_3R_FLOAT_ARITH 26 /* float VADD, VSUB, VPADD, VABD */ |
4010 | #define NEON_3R_FLOAT_MULTIPLY 27 /* float VMLA, VMLS, VMUL */ | |
4011 | #define NEON_3R_FLOAT_CMP 28 /* float VCEQ, VCGE, VCGT */ | |
4012 | #define NEON_3R_FLOAT_ACMP 29 /* float VACGE, VACGT, VACLE, VACLT */ | |
4013 | #define NEON_3R_FLOAT_MINMAX 30 /* float VMIN, VMAX */ | |
505935fc | 4014 | #define NEON_3R_FLOAT_MISC 31 /* float VRECPS, VRSQRTS, VMAXNM/MINNM */ |
62698be3 PM |
4015 | |
4016 | static const uint8_t neon_3r_sizes[] = { | |
4017 | [NEON_3R_VHADD] = 0x7, | |
4018 | [NEON_3R_VQADD] = 0xf, | |
4019 | [NEON_3R_VRHADD] = 0x7, | |
4020 | [NEON_3R_LOGIC] = 0xf, /* size field encodes op type */ | |
4021 | [NEON_3R_VHSUB] = 0x7, | |
4022 | [NEON_3R_VQSUB] = 0xf, | |
4023 | [NEON_3R_VCGT] = 0x7, | |
4024 | [NEON_3R_VCGE] = 0x7, | |
4025 | [NEON_3R_VSHL] = 0xf, | |
4026 | [NEON_3R_VQSHL] = 0xf, | |
4027 | [NEON_3R_VRSHL] = 0xf, | |
4028 | [NEON_3R_VQRSHL] = 0xf, | |
4029 | [NEON_3R_VMAX] = 0x7, | |
4030 | [NEON_3R_VMIN] = 0x7, | |
4031 | [NEON_3R_VABD] = 0x7, | |
4032 | [NEON_3R_VABA] = 0x7, | |
4033 | [NEON_3R_VADD_VSUB] = 0xf, | |
4034 | [NEON_3R_VTST_VCEQ] = 0x7, | |
4035 | [NEON_3R_VML] = 0x7, | |
4036 | [NEON_3R_VMUL] = 0x7, | |
4037 | [NEON_3R_VPMAX] = 0x7, | |
4038 | [NEON_3R_VPMIN] = 0x7, | |
4039 | [NEON_3R_VQDMULH_VQRDMULH] = 0x6, | |
36a71934 | 4040 | [NEON_3R_VPADD_VQRDMLAH] = 0x7, |
f1ecb913 | 4041 | [NEON_3R_SHA] = 0xf, /* size field encodes op type */ |
36a71934 | 4042 | [NEON_3R_VFM_VQRDMLSH] = 0x7, /* For VFM, size bit 1 encodes op */ |
62698be3 PM |
4043 | [NEON_3R_FLOAT_ARITH] = 0x5, /* size bit 1 encodes op */ |
4044 | [NEON_3R_FLOAT_MULTIPLY] = 0x5, /* size bit 1 encodes op */ | |
4045 | [NEON_3R_FLOAT_CMP] = 0x5, /* size bit 1 encodes op */ | |
4046 | [NEON_3R_FLOAT_ACMP] = 0x5, /* size bit 1 encodes op */ | |
4047 | [NEON_3R_FLOAT_MINMAX] = 0x5, /* size bit 1 encodes op */ | |
505935fc | 4048 | [NEON_3R_FLOAT_MISC] = 0x5, /* size bit 1 encodes op */ |
62698be3 PM |
4049 | }; |
4050 | ||
600b828c PM |
4051 | /* Symbolic constants for op fields for Neon 2-register miscellaneous. |
4052 | * The values correspond to bits [17:16,10:7]; see the ARM ARM DDI0406B | |
4053 | * table A7-13. | |
4054 | */ | |
4055 | #define NEON_2RM_VREV64 0 | |
4056 | #define NEON_2RM_VREV32 1 | |
4057 | #define NEON_2RM_VREV16 2 | |
4058 | #define NEON_2RM_VPADDL 4 | |
4059 | #define NEON_2RM_VPADDL_U 5 | |
9d935509 AB |
4060 | #define NEON_2RM_AESE 6 /* Includes AESD */ |
4061 | #define NEON_2RM_AESMC 7 /* Includes AESIMC */ | |
600b828c PM |
4062 | #define NEON_2RM_VCLS 8 |
4063 | #define NEON_2RM_VCLZ 9 | |
4064 | #define NEON_2RM_VCNT 10 | |
4065 | #define NEON_2RM_VMVN 11 | |
4066 | #define NEON_2RM_VPADAL 12 | |
4067 | #define NEON_2RM_VPADAL_U 13 | |
4068 | #define NEON_2RM_VQABS 14 | |
4069 | #define NEON_2RM_VQNEG 15 | |
4070 | #define NEON_2RM_VCGT0 16 | |
4071 | #define NEON_2RM_VCGE0 17 | |
4072 | #define NEON_2RM_VCEQ0 18 | |
4073 | #define NEON_2RM_VCLE0 19 | |
4074 | #define NEON_2RM_VCLT0 20 | |
f1ecb913 | 4075 | #define NEON_2RM_SHA1H 21 |
600b828c PM |
4076 | #define NEON_2RM_VABS 22 |
4077 | #define NEON_2RM_VNEG 23 | |
4078 | #define NEON_2RM_VCGT0_F 24 | |
4079 | #define NEON_2RM_VCGE0_F 25 | |
4080 | #define NEON_2RM_VCEQ0_F 26 | |
4081 | #define NEON_2RM_VCLE0_F 27 | |
4082 | #define NEON_2RM_VCLT0_F 28 | |
4083 | #define NEON_2RM_VABS_F 30 | |
4084 | #define NEON_2RM_VNEG_F 31 | |
4085 | #define NEON_2RM_VSWP 32 | |
4086 | #define NEON_2RM_VTRN 33 | |
4087 | #define NEON_2RM_VUZP 34 | |
4088 | #define NEON_2RM_VZIP 35 | |
4089 | #define NEON_2RM_VMOVN 36 /* Includes VQMOVN, VQMOVUN */ | |
4090 | #define NEON_2RM_VQMOVN 37 /* Includes VQMOVUN */ | |
4091 | #define NEON_2RM_VSHLL 38 | |
f1ecb913 | 4092 | #define NEON_2RM_SHA1SU1 39 /* Includes SHA256SU0 */ |
34f7b0a2 | 4093 | #define NEON_2RM_VRINTN 40 |
2ce70625 | 4094 | #define NEON_2RM_VRINTX 41 |
34f7b0a2 WN |
4095 | #define NEON_2RM_VRINTA 42 |
4096 | #define NEON_2RM_VRINTZ 43 | |
600b828c | 4097 | #define NEON_2RM_VCVT_F16_F32 44 |
34f7b0a2 | 4098 | #define NEON_2RM_VRINTM 45 |
600b828c | 4099 | #define NEON_2RM_VCVT_F32_F16 46 |
34f7b0a2 | 4100 | #define NEON_2RM_VRINTP 47 |
901ad525 WN |
4101 | #define NEON_2RM_VCVTAU 48 |
4102 | #define NEON_2RM_VCVTAS 49 | |
4103 | #define NEON_2RM_VCVTNU 50 | |
4104 | #define NEON_2RM_VCVTNS 51 | |
4105 | #define NEON_2RM_VCVTPU 52 | |
4106 | #define NEON_2RM_VCVTPS 53 | |
4107 | #define NEON_2RM_VCVTMU 54 | |
4108 | #define NEON_2RM_VCVTMS 55 | |
600b828c PM |
4109 | #define NEON_2RM_VRECPE 56 |
4110 | #define NEON_2RM_VRSQRTE 57 | |
4111 | #define NEON_2RM_VRECPE_F 58 | |
4112 | #define NEON_2RM_VRSQRTE_F 59 | |
4113 | #define NEON_2RM_VCVT_FS 60 | |
4114 | #define NEON_2RM_VCVT_FU 61 | |
4115 | #define NEON_2RM_VCVT_SF 62 | |
4116 | #define NEON_2RM_VCVT_UF 63 | |
4117 | ||
fe8fcf3d PM |
4118 | static bool neon_2rm_is_v8_op(int op) |
4119 | { | |
4120 | /* Return true if this neon 2reg-misc op is ARMv8 and up */ | |
4121 | switch (op) { | |
4122 | case NEON_2RM_VRINTN: | |
4123 | case NEON_2RM_VRINTA: | |
4124 | case NEON_2RM_VRINTM: | |
4125 | case NEON_2RM_VRINTP: | |
4126 | case NEON_2RM_VRINTZ: | |
4127 | case NEON_2RM_VRINTX: | |
4128 | case NEON_2RM_VCVTAU: | |
4129 | case NEON_2RM_VCVTAS: | |
4130 | case NEON_2RM_VCVTNU: | |
4131 | case NEON_2RM_VCVTNS: | |
4132 | case NEON_2RM_VCVTPU: | |
4133 | case NEON_2RM_VCVTPS: | |
4134 | case NEON_2RM_VCVTMU: | |
4135 | case NEON_2RM_VCVTMS: | |
4136 | return true; | |
4137 | default: | |
4138 | return false; | |
4139 | } | |
4140 | } | |
4141 | ||
600b828c PM |
4142 | /* Each entry in this array has bit n set if the insn allows |
4143 | * size value n (otherwise it will UNDEF). Since unallocated | |
4144 | * op values will have no bits set they always UNDEF. | |
4145 | */ | |
4146 | static const uint8_t neon_2rm_sizes[] = { | |
4147 | [NEON_2RM_VREV64] = 0x7, | |
4148 | [NEON_2RM_VREV32] = 0x3, | |
4149 | [NEON_2RM_VREV16] = 0x1, | |
4150 | [NEON_2RM_VPADDL] = 0x7, | |
4151 | [NEON_2RM_VPADDL_U] = 0x7, | |
9d935509 AB |
4152 | [NEON_2RM_AESE] = 0x1, |
4153 | [NEON_2RM_AESMC] = 0x1, | |
600b828c PM |
4154 | [NEON_2RM_VCLS] = 0x7, |
4155 | [NEON_2RM_VCLZ] = 0x7, | |
4156 | [NEON_2RM_VCNT] = 0x1, | |
4157 | [NEON_2RM_VMVN] = 0x1, | |
4158 | [NEON_2RM_VPADAL] = 0x7, | |
4159 | [NEON_2RM_VPADAL_U] = 0x7, | |
4160 | [NEON_2RM_VQABS] = 0x7, | |
4161 | [NEON_2RM_VQNEG] = 0x7, | |
4162 | [NEON_2RM_VCGT0] = 0x7, | |
4163 | [NEON_2RM_VCGE0] = 0x7, | |
4164 | [NEON_2RM_VCEQ0] = 0x7, | |
4165 | [NEON_2RM_VCLE0] = 0x7, | |
4166 | [NEON_2RM_VCLT0] = 0x7, | |
f1ecb913 | 4167 | [NEON_2RM_SHA1H] = 0x4, |
600b828c PM |
4168 | [NEON_2RM_VABS] = 0x7, |
4169 | [NEON_2RM_VNEG] = 0x7, | |
4170 | [NEON_2RM_VCGT0_F] = 0x4, | |
4171 | [NEON_2RM_VCGE0_F] = 0x4, | |
4172 | [NEON_2RM_VCEQ0_F] = 0x4, | |
4173 | [NEON_2RM_VCLE0_F] = 0x4, | |
4174 | [NEON_2RM_VCLT0_F] = 0x4, | |
4175 | [NEON_2RM_VABS_F] = 0x4, | |
4176 | [NEON_2RM_VNEG_F] = 0x4, | |
4177 | [NEON_2RM_VSWP] = 0x1, | |
4178 | [NEON_2RM_VTRN] = 0x7, | |
4179 | [NEON_2RM_VUZP] = 0x7, | |
4180 | [NEON_2RM_VZIP] = 0x7, | |
4181 | [NEON_2RM_VMOVN] = 0x7, | |
4182 | [NEON_2RM_VQMOVN] = 0x7, | |
4183 | [NEON_2RM_VSHLL] = 0x7, | |
f1ecb913 | 4184 | [NEON_2RM_SHA1SU1] = 0x4, |
34f7b0a2 | 4185 | [NEON_2RM_VRINTN] = 0x4, |
2ce70625 | 4186 | [NEON_2RM_VRINTX] = 0x4, |
34f7b0a2 WN |
4187 | [NEON_2RM_VRINTA] = 0x4, |
4188 | [NEON_2RM_VRINTZ] = 0x4, | |
600b828c | 4189 | [NEON_2RM_VCVT_F16_F32] = 0x2, |
34f7b0a2 | 4190 | [NEON_2RM_VRINTM] = 0x4, |
600b828c | 4191 | [NEON_2RM_VCVT_F32_F16] = 0x2, |
34f7b0a2 | 4192 | [NEON_2RM_VRINTP] = 0x4, |
901ad525 WN |
4193 | [NEON_2RM_VCVTAU] = 0x4, |
4194 | [NEON_2RM_VCVTAS] = 0x4, | |
4195 | [NEON_2RM_VCVTNU] = 0x4, | |
4196 | [NEON_2RM_VCVTNS] = 0x4, | |
4197 | [NEON_2RM_VCVTPU] = 0x4, | |
4198 | [NEON_2RM_VCVTPS] = 0x4, | |
4199 | [NEON_2RM_VCVTMU] = 0x4, | |
4200 | [NEON_2RM_VCVTMS] = 0x4, | |
600b828c PM |
4201 | [NEON_2RM_VRECPE] = 0x4, |
4202 | [NEON_2RM_VRSQRTE] = 0x4, | |
4203 | [NEON_2RM_VRECPE_F] = 0x4, | |
4204 | [NEON_2RM_VRSQRTE_F] = 0x4, | |
4205 | [NEON_2RM_VCVT_FS] = 0x4, | |
4206 | [NEON_2RM_VCVT_FU] = 0x4, | |
4207 | [NEON_2RM_VCVT_SF] = 0x4, | |
4208 | [NEON_2RM_VCVT_UF] = 0x4, | |
4209 | }; | |
4210 | ||
36a71934 RH |
4211 | |
4212 | /* Expand v8.1 simd helper. */ | |
4213 | static int do_v81_helper(DisasContext *s, gen_helper_gvec_3_ptr *fn, | |
4214 | int q, int rd, int rn, int rm) | |
4215 | { | |
962fcbf2 | 4216 | if (dc_isar_feature(aa32_rdm, s)) { |
36a71934 RH |
4217 | int opr_sz = (1 + q) * 8; |
4218 | tcg_gen_gvec_3_ptr(vfp_reg_offset(1, rd), | |
4219 | vfp_reg_offset(1, rn), | |
4220 | vfp_reg_offset(1, rm), cpu_env, | |
4221 | opr_sz, opr_sz, 0, fn); | |
4222 | return 0; | |
4223 | } | |
4224 | return 1; | |
4225 | } | |
4226 | ||
41f6c113 RH |
4227 | static void gen_ssra8_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) |
4228 | { | |
4229 | tcg_gen_vec_sar8i_i64(a, a, shift); | |
4230 | tcg_gen_vec_add8_i64(d, d, a); | |
4231 | } | |
4232 | ||
4233 | static void gen_ssra16_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4234 | { | |
4235 | tcg_gen_vec_sar16i_i64(a, a, shift); | |
4236 | tcg_gen_vec_add16_i64(d, d, a); | |
4237 | } | |
4238 | ||
4239 | static void gen_ssra32_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) | |
4240 | { | |
4241 | tcg_gen_sari_i32(a, a, shift); | |
4242 | tcg_gen_add_i32(d, d, a); | |
4243 | } | |
4244 | ||
4245 | static void gen_ssra64_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4246 | { | |
4247 | tcg_gen_sari_i64(a, a, shift); | |
4248 | tcg_gen_add_i64(d, d, a); | |
4249 | } | |
4250 | ||
4251 | static void gen_ssra_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) | |
4252 | { | |
4253 | tcg_gen_sari_vec(vece, a, a, sh); | |
4254 | tcg_gen_add_vec(vece, d, d, a); | |
4255 | } | |
4256 | ||
53229a77 RH |
4257 | static const TCGOpcode vecop_list_ssra[] = { |
4258 | INDEX_op_sari_vec, INDEX_op_add_vec, 0 | |
4259 | }; | |
4260 | ||
41f6c113 RH |
4261 | const GVecGen2i ssra_op[4] = { |
4262 | { .fni8 = gen_ssra8_i64, | |
4263 | .fniv = gen_ssra_vec, | |
4264 | .load_dest = true, | |
53229a77 | 4265 | .opt_opc = vecop_list_ssra, |
41f6c113 RH |
4266 | .vece = MO_8 }, |
4267 | { .fni8 = gen_ssra16_i64, | |
4268 | .fniv = gen_ssra_vec, | |
4269 | .load_dest = true, | |
53229a77 | 4270 | .opt_opc = vecop_list_ssra, |
41f6c113 RH |
4271 | .vece = MO_16 }, |
4272 | { .fni4 = gen_ssra32_i32, | |
4273 | .fniv = gen_ssra_vec, | |
4274 | .load_dest = true, | |
53229a77 | 4275 | .opt_opc = vecop_list_ssra, |
41f6c113 RH |
4276 | .vece = MO_32 }, |
4277 | { .fni8 = gen_ssra64_i64, | |
4278 | .fniv = gen_ssra_vec, | |
4279 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
53229a77 | 4280 | .opt_opc = vecop_list_ssra, |
41f6c113 | 4281 | .load_dest = true, |
41f6c113 RH |
4282 | .vece = MO_64 }, |
4283 | }; | |
4284 | ||
4285 | static void gen_usra8_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4286 | { | |
4287 | tcg_gen_vec_shr8i_i64(a, a, shift); | |
4288 | tcg_gen_vec_add8_i64(d, d, a); | |
4289 | } | |
4290 | ||
4291 | static void gen_usra16_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4292 | { | |
4293 | tcg_gen_vec_shr16i_i64(a, a, shift); | |
4294 | tcg_gen_vec_add16_i64(d, d, a); | |
4295 | } | |
4296 | ||
4297 | static void gen_usra32_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) | |
4298 | { | |
4299 | tcg_gen_shri_i32(a, a, shift); | |
4300 | tcg_gen_add_i32(d, d, a); | |
4301 | } | |
4302 | ||
4303 | static void gen_usra64_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4304 | { | |
4305 | tcg_gen_shri_i64(a, a, shift); | |
4306 | tcg_gen_add_i64(d, d, a); | |
4307 | } | |
4308 | ||
4309 | static void gen_usra_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) | |
4310 | { | |
4311 | tcg_gen_shri_vec(vece, a, a, sh); | |
4312 | tcg_gen_add_vec(vece, d, d, a); | |
4313 | } | |
4314 | ||
53229a77 RH |
4315 | static const TCGOpcode vecop_list_usra[] = { |
4316 | INDEX_op_shri_vec, INDEX_op_add_vec, 0 | |
4317 | }; | |
4318 | ||
41f6c113 RH |
4319 | const GVecGen2i usra_op[4] = { |
4320 | { .fni8 = gen_usra8_i64, | |
4321 | .fniv = gen_usra_vec, | |
4322 | .load_dest = true, | |
53229a77 | 4323 | .opt_opc = vecop_list_usra, |
41f6c113 RH |
4324 | .vece = MO_8, }, |
4325 | { .fni8 = gen_usra16_i64, | |
4326 | .fniv = gen_usra_vec, | |
4327 | .load_dest = true, | |
53229a77 | 4328 | .opt_opc = vecop_list_usra, |
41f6c113 RH |
4329 | .vece = MO_16, }, |
4330 | { .fni4 = gen_usra32_i32, | |
4331 | .fniv = gen_usra_vec, | |
4332 | .load_dest = true, | |
53229a77 | 4333 | .opt_opc = vecop_list_usra, |
41f6c113 RH |
4334 | .vece = MO_32, }, |
4335 | { .fni8 = gen_usra64_i64, | |
4336 | .fniv = gen_usra_vec, | |
4337 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
4338 | .load_dest = true, | |
53229a77 | 4339 | .opt_opc = vecop_list_usra, |
41f6c113 RH |
4340 | .vece = MO_64, }, |
4341 | }; | |
eabcd6fa | 4342 | |
f3cd8218 RH |
4343 | static void gen_shr8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) |
4344 | { | |
4345 | uint64_t mask = dup_const(MO_8, 0xff >> shift); | |
4346 | TCGv_i64 t = tcg_temp_new_i64(); | |
4347 | ||
4348 | tcg_gen_shri_i64(t, a, shift); | |
4349 | tcg_gen_andi_i64(t, t, mask); | |
4350 | tcg_gen_andi_i64(d, d, ~mask); | |
4351 | tcg_gen_or_i64(d, d, t); | |
4352 | tcg_temp_free_i64(t); | |
4353 | } | |
4354 | ||
4355 | static void gen_shr16_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4356 | { | |
4357 | uint64_t mask = dup_const(MO_16, 0xffff >> shift); | |
4358 | TCGv_i64 t = tcg_temp_new_i64(); | |
4359 | ||
4360 | tcg_gen_shri_i64(t, a, shift); | |
4361 | tcg_gen_andi_i64(t, t, mask); | |
4362 | tcg_gen_andi_i64(d, d, ~mask); | |
4363 | tcg_gen_or_i64(d, d, t); | |
4364 | tcg_temp_free_i64(t); | |
4365 | } | |
4366 | ||
4367 | static void gen_shr32_ins_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) | |
4368 | { | |
4369 | tcg_gen_shri_i32(a, a, shift); | |
4370 | tcg_gen_deposit_i32(d, d, a, 0, 32 - shift); | |
4371 | } | |
4372 | ||
4373 | static void gen_shr64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4374 | { | |
4375 | tcg_gen_shri_i64(a, a, shift); | |
4376 | tcg_gen_deposit_i64(d, d, a, 0, 64 - shift); | |
4377 | } | |
4378 | ||
4379 | static void gen_shr_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) | |
4380 | { | |
4381 | if (sh == 0) { | |
4382 | tcg_gen_mov_vec(d, a); | |
4383 | } else { | |
4384 | TCGv_vec t = tcg_temp_new_vec_matching(d); | |
4385 | TCGv_vec m = tcg_temp_new_vec_matching(d); | |
4386 | ||
4387 | tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK((8 << vece) - sh, sh)); | |
4388 | tcg_gen_shri_vec(vece, t, a, sh); | |
4389 | tcg_gen_and_vec(vece, d, d, m); | |
4390 | tcg_gen_or_vec(vece, d, d, t); | |
4391 | ||
4392 | tcg_temp_free_vec(t); | |
4393 | tcg_temp_free_vec(m); | |
4394 | } | |
4395 | } | |
4396 | ||
53229a77 RH |
4397 | static const TCGOpcode vecop_list_sri[] = { INDEX_op_shri_vec, 0 }; |
4398 | ||
f3cd8218 RH |
4399 | const GVecGen2i sri_op[4] = { |
4400 | { .fni8 = gen_shr8_ins_i64, | |
4401 | .fniv = gen_shr_ins_vec, | |
4402 | .load_dest = true, | |
53229a77 | 4403 | .opt_opc = vecop_list_sri, |
f3cd8218 RH |
4404 | .vece = MO_8 }, |
4405 | { .fni8 = gen_shr16_ins_i64, | |
4406 | .fniv = gen_shr_ins_vec, | |
4407 | .load_dest = true, | |
53229a77 | 4408 | .opt_opc = vecop_list_sri, |
f3cd8218 RH |
4409 | .vece = MO_16 }, |
4410 | { .fni4 = gen_shr32_ins_i32, | |
4411 | .fniv = gen_shr_ins_vec, | |
4412 | .load_dest = true, | |
53229a77 | 4413 | .opt_opc = vecop_list_sri, |
f3cd8218 RH |
4414 | .vece = MO_32 }, |
4415 | { .fni8 = gen_shr64_ins_i64, | |
4416 | .fniv = gen_shr_ins_vec, | |
4417 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
4418 | .load_dest = true, | |
53229a77 | 4419 | .opt_opc = vecop_list_sri, |
f3cd8218 RH |
4420 | .vece = MO_64 }, |
4421 | }; | |
4422 | ||
4423 | static void gen_shl8_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4424 | { | |
4425 | uint64_t mask = dup_const(MO_8, 0xff << shift); | |
4426 | TCGv_i64 t = tcg_temp_new_i64(); | |
4427 | ||
4428 | tcg_gen_shli_i64(t, a, shift); | |
4429 | tcg_gen_andi_i64(t, t, mask); | |
4430 | tcg_gen_andi_i64(d, d, ~mask); | |
4431 | tcg_gen_or_i64(d, d, t); | |
4432 | tcg_temp_free_i64(t); | |
4433 | } | |
4434 | ||
4435 | static void gen_shl16_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4436 | { | |
4437 | uint64_t mask = dup_const(MO_16, 0xffff << shift); | |
4438 | TCGv_i64 t = tcg_temp_new_i64(); | |
4439 | ||
4440 | tcg_gen_shli_i64(t, a, shift); | |
4441 | tcg_gen_andi_i64(t, t, mask); | |
4442 | tcg_gen_andi_i64(d, d, ~mask); | |
4443 | tcg_gen_or_i64(d, d, t); | |
4444 | tcg_temp_free_i64(t); | |
4445 | } | |
4446 | ||
4447 | static void gen_shl32_ins_i32(TCGv_i32 d, TCGv_i32 a, int32_t shift) | |
4448 | { | |
4449 | tcg_gen_deposit_i32(d, d, a, shift, 32 - shift); | |
4450 | } | |
4451 | ||
4452 | static void gen_shl64_ins_i64(TCGv_i64 d, TCGv_i64 a, int64_t shift) | |
4453 | { | |
4454 | tcg_gen_deposit_i64(d, d, a, shift, 64 - shift); | |
4455 | } | |
4456 | ||
4457 | static void gen_shl_ins_vec(unsigned vece, TCGv_vec d, TCGv_vec a, int64_t sh) | |
4458 | { | |
4459 | if (sh == 0) { | |
4460 | tcg_gen_mov_vec(d, a); | |
4461 | } else { | |
4462 | TCGv_vec t = tcg_temp_new_vec_matching(d); | |
4463 | TCGv_vec m = tcg_temp_new_vec_matching(d); | |
4464 | ||
4465 | tcg_gen_dupi_vec(vece, m, MAKE_64BIT_MASK(0, sh)); | |
4466 | tcg_gen_shli_vec(vece, t, a, sh); | |
4467 | tcg_gen_and_vec(vece, d, d, m); | |
4468 | tcg_gen_or_vec(vece, d, d, t); | |
4469 | ||
4470 | tcg_temp_free_vec(t); | |
4471 | tcg_temp_free_vec(m); | |
4472 | } | |
4473 | } | |
4474 | ||
53229a77 RH |
4475 | static const TCGOpcode vecop_list_sli[] = { INDEX_op_shli_vec, 0 }; |
4476 | ||
f3cd8218 RH |
4477 | const GVecGen2i sli_op[4] = { |
4478 | { .fni8 = gen_shl8_ins_i64, | |
4479 | .fniv = gen_shl_ins_vec, | |
4480 | .load_dest = true, | |
53229a77 | 4481 | .opt_opc = vecop_list_sli, |
f3cd8218 RH |
4482 | .vece = MO_8 }, |
4483 | { .fni8 = gen_shl16_ins_i64, | |
4484 | .fniv = gen_shl_ins_vec, | |
4485 | .load_dest = true, | |
53229a77 | 4486 | .opt_opc = vecop_list_sli, |
f3cd8218 RH |
4487 | .vece = MO_16 }, |
4488 | { .fni4 = gen_shl32_ins_i32, | |
4489 | .fniv = gen_shl_ins_vec, | |
4490 | .load_dest = true, | |
53229a77 | 4491 | .opt_opc = vecop_list_sli, |
f3cd8218 RH |
4492 | .vece = MO_32 }, |
4493 | { .fni8 = gen_shl64_ins_i64, | |
4494 | .fniv = gen_shl_ins_vec, | |
4495 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
4496 | .load_dest = true, | |
53229a77 | 4497 | .opt_opc = vecop_list_sli, |
f3cd8218 RH |
4498 | .vece = MO_64 }, |
4499 | }; | |
4500 | ||
4a7832b0 RH |
4501 | static void gen_mla8_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) |
4502 | { | |
4503 | gen_helper_neon_mul_u8(a, a, b); | |
4504 | gen_helper_neon_add_u8(d, d, a); | |
4505 | } | |
4506 | ||
4507 | static void gen_mls8_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) | |
4508 | { | |
4509 | gen_helper_neon_mul_u8(a, a, b); | |
4510 | gen_helper_neon_sub_u8(d, d, a); | |
4511 | } | |
4512 | ||
4513 | static void gen_mla16_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) | |
4514 | { | |
4515 | gen_helper_neon_mul_u16(a, a, b); | |
4516 | gen_helper_neon_add_u16(d, d, a); | |
4517 | } | |
4518 | ||
4519 | static void gen_mls16_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) | |
4520 | { | |
4521 | gen_helper_neon_mul_u16(a, a, b); | |
4522 | gen_helper_neon_sub_u16(d, d, a); | |
4523 | } | |
4524 | ||
4525 | static void gen_mla32_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) | |
4526 | { | |
4527 | tcg_gen_mul_i32(a, a, b); | |
4528 | tcg_gen_add_i32(d, d, a); | |
4529 | } | |
4530 | ||
4531 | static void gen_mls32_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) | |
4532 | { | |
4533 | tcg_gen_mul_i32(a, a, b); | |
4534 | tcg_gen_sub_i32(d, d, a); | |
4535 | } | |
4536 | ||
4537 | static void gen_mla64_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) | |
4538 | { | |
4539 | tcg_gen_mul_i64(a, a, b); | |
4540 | tcg_gen_add_i64(d, d, a); | |
4541 | } | |
4542 | ||
4543 | static void gen_mls64_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) | |
4544 | { | |
4545 | tcg_gen_mul_i64(a, a, b); | |
4546 | tcg_gen_sub_i64(d, d, a); | |
4547 | } | |
4548 | ||
4549 | static void gen_mla_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b) | |
4550 | { | |
4551 | tcg_gen_mul_vec(vece, a, a, b); | |
4552 | tcg_gen_add_vec(vece, d, d, a); | |
4553 | } | |
4554 | ||
4555 | static void gen_mls_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b) | |
4556 | { | |
4557 | tcg_gen_mul_vec(vece, a, a, b); | |
4558 | tcg_gen_sub_vec(vece, d, d, a); | |
4559 | } | |
4560 | ||
4561 | /* Note that while NEON does not support VMLA and VMLS as 64-bit ops, | |
4562 | * these tables are shared with AArch64 which does support them. | |
4563 | */ | |
53229a77 RH |
4564 | |
4565 | static const TCGOpcode vecop_list_mla[] = { | |
4566 | INDEX_op_mul_vec, INDEX_op_add_vec, 0 | |
4567 | }; | |
4568 | ||
4569 | static const TCGOpcode vecop_list_mls[] = { | |
4570 | INDEX_op_mul_vec, INDEX_op_sub_vec, 0 | |
4571 | }; | |
4572 | ||
4a7832b0 RH |
4573 | const GVecGen3 mla_op[4] = { |
4574 | { .fni4 = gen_mla8_i32, | |
4575 | .fniv = gen_mla_vec, | |
4a7832b0 | 4576 | .load_dest = true, |
53229a77 | 4577 | .opt_opc = vecop_list_mla, |
4a7832b0 RH |
4578 | .vece = MO_8 }, |
4579 | { .fni4 = gen_mla16_i32, | |
4580 | .fniv = gen_mla_vec, | |
4a7832b0 | 4581 | .load_dest = true, |
53229a77 | 4582 | .opt_opc = vecop_list_mla, |
4a7832b0 RH |
4583 | .vece = MO_16 }, |
4584 | { .fni4 = gen_mla32_i32, | |
4585 | .fniv = gen_mla_vec, | |
4a7832b0 | 4586 | .load_dest = true, |
53229a77 | 4587 | .opt_opc = vecop_list_mla, |
4a7832b0 RH |
4588 | .vece = MO_32 }, |
4589 | { .fni8 = gen_mla64_i64, | |
4590 | .fniv = gen_mla_vec, | |
4a7832b0 RH |
4591 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, |
4592 | .load_dest = true, | |
53229a77 | 4593 | .opt_opc = vecop_list_mla, |
4a7832b0 RH |
4594 | .vece = MO_64 }, |
4595 | }; | |
4596 | ||
4597 | const GVecGen3 mls_op[4] = { | |
4598 | { .fni4 = gen_mls8_i32, | |
4599 | .fniv = gen_mls_vec, | |
4a7832b0 | 4600 | .load_dest = true, |
53229a77 | 4601 | .opt_opc = vecop_list_mls, |
4a7832b0 RH |
4602 | .vece = MO_8 }, |
4603 | { .fni4 = gen_mls16_i32, | |
4604 | .fniv = gen_mls_vec, | |
4a7832b0 | 4605 | .load_dest = true, |
53229a77 | 4606 | .opt_opc = vecop_list_mls, |
4a7832b0 RH |
4607 | .vece = MO_16 }, |
4608 | { .fni4 = gen_mls32_i32, | |
4609 | .fniv = gen_mls_vec, | |
4a7832b0 | 4610 | .load_dest = true, |
53229a77 | 4611 | .opt_opc = vecop_list_mls, |
4a7832b0 RH |
4612 | .vece = MO_32 }, |
4613 | { .fni8 = gen_mls64_i64, | |
4614 | .fniv = gen_mls_vec, | |
4a7832b0 RH |
4615 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, |
4616 | .load_dest = true, | |
53229a77 | 4617 | .opt_opc = vecop_list_mls, |
4a7832b0 RH |
4618 | .vece = MO_64 }, |
4619 | }; | |
4620 | ||
ea580fa3 RH |
4621 | /* CMTST : test is "if (X & Y != 0)". */ |
4622 | static void gen_cmtst_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) | |
4623 | { | |
4624 | tcg_gen_and_i32(d, a, b); | |
4625 | tcg_gen_setcondi_i32(TCG_COND_NE, d, d, 0); | |
4626 | tcg_gen_neg_i32(d, d); | |
4627 | } | |
4628 | ||
4629 | void gen_cmtst_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) | |
4630 | { | |
4631 | tcg_gen_and_i64(d, a, b); | |
4632 | tcg_gen_setcondi_i64(TCG_COND_NE, d, d, 0); | |
4633 | tcg_gen_neg_i64(d, d); | |
4634 | } | |
4635 | ||
4636 | static void gen_cmtst_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b) | |
4637 | { | |
4638 | tcg_gen_and_vec(vece, d, a, b); | |
4639 | tcg_gen_dupi_vec(vece, a, 0); | |
4640 | tcg_gen_cmp_vec(TCG_COND_NE, vece, d, d, a); | |
4641 | } | |
4642 | ||
53229a77 RH |
4643 | static const TCGOpcode vecop_list_cmtst[] = { INDEX_op_cmp_vec, 0 }; |
4644 | ||
ea580fa3 RH |
4645 | const GVecGen3 cmtst_op[4] = { |
4646 | { .fni4 = gen_helper_neon_tst_u8, | |
4647 | .fniv = gen_cmtst_vec, | |
53229a77 | 4648 | .opt_opc = vecop_list_cmtst, |
ea580fa3 RH |
4649 | .vece = MO_8 }, |
4650 | { .fni4 = gen_helper_neon_tst_u16, | |
4651 | .fniv = gen_cmtst_vec, | |
53229a77 | 4652 | .opt_opc = vecop_list_cmtst, |
ea580fa3 RH |
4653 | .vece = MO_16 }, |
4654 | { .fni4 = gen_cmtst_i32, | |
4655 | .fniv = gen_cmtst_vec, | |
53229a77 | 4656 | .opt_opc = vecop_list_cmtst, |
ea580fa3 RH |
4657 | .vece = MO_32 }, |
4658 | { .fni8 = gen_cmtst_i64, | |
4659 | .fniv = gen_cmtst_vec, | |
4660 | .prefer_i64 = TCG_TARGET_REG_BITS == 64, | |
53229a77 | 4661 | .opt_opc = vecop_list_cmtst, |
ea580fa3 RH |
4662 | .vece = MO_64 }, |
4663 | }; | |
4664 | ||
89e68b57 RH |
4665 | static void gen_uqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, |
4666 | TCGv_vec a, TCGv_vec b) | |
4667 | { | |
4668 | TCGv_vec x = tcg_temp_new_vec_matching(t); | |
4669 | tcg_gen_add_vec(vece, x, a, b); | |
4670 | tcg_gen_usadd_vec(vece, t, a, b); | |
4671 | tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); | |
4672 | tcg_gen_or_vec(vece, sat, sat, x); | |
4673 | tcg_temp_free_vec(x); | |
4674 | } | |
4675 | ||
53229a77 RH |
4676 | static const TCGOpcode vecop_list_uqadd[] = { |
4677 | INDEX_op_usadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0 | |
4678 | }; | |
4679 | ||
89e68b57 RH |
4680 | const GVecGen4 uqadd_op[4] = { |
4681 | { .fniv = gen_uqadd_vec, | |
4682 | .fno = gen_helper_gvec_uqadd_b, | |
89e68b57 | 4683 | .write_aofs = true, |
53229a77 | 4684 | .opt_opc = vecop_list_uqadd, |
89e68b57 RH |
4685 | .vece = MO_8 }, |
4686 | { .fniv = gen_uqadd_vec, | |
4687 | .fno = gen_helper_gvec_uqadd_h, | |
89e68b57 | 4688 | .write_aofs = true, |
53229a77 | 4689 | .opt_opc = vecop_list_uqadd, |
89e68b57 RH |
4690 | .vece = MO_16 }, |
4691 | { .fniv = gen_uqadd_vec, | |
4692 | .fno = gen_helper_gvec_uqadd_s, | |
89e68b57 | 4693 | .write_aofs = true, |
53229a77 | 4694 | .opt_opc = vecop_list_uqadd, |
89e68b57 RH |
4695 | .vece = MO_32 }, |
4696 | { .fniv = gen_uqadd_vec, | |
4697 | .fno = gen_helper_gvec_uqadd_d, | |
89e68b57 | 4698 | .write_aofs = true, |
53229a77 | 4699 | .opt_opc = vecop_list_uqadd, |
89e68b57 RH |
4700 | .vece = MO_64 }, |
4701 | }; | |
4702 | ||
4703 | static void gen_sqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, | |
4704 | TCGv_vec a, TCGv_vec b) | |
4705 | { | |
4706 | TCGv_vec x = tcg_temp_new_vec_matching(t); | |
4707 | tcg_gen_add_vec(vece, x, a, b); | |
4708 | tcg_gen_ssadd_vec(vece, t, a, b); | |
4709 | tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); | |
4710 | tcg_gen_or_vec(vece, sat, sat, x); | |
4711 | tcg_temp_free_vec(x); | |
4712 | } | |
4713 | ||
53229a77 RH |
4714 | static const TCGOpcode vecop_list_sqadd[] = { |
4715 | INDEX_op_ssadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0 | |
4716 | }; | |
4717 | ||
89e68b57 RH |
4718 | const GVecGen4 sqadd_op[4] = { |
4719 | { .fniv = gen_sqadd_vec, | |
4720 | .fno = gen_helper_gvec_sqadd_b, | |
53229a77 | 4721 | .opt_opc = vecop_list_sqadd, |
89e68b57 RH |
4722 | .write_aofs = true, |
4723 | .vece = MO_8 }, | |
4724 | { .fniv = gen_sqadd_vec, | |
4725 | .fno = gen_helper_gvec_sqadd_h, | |
53229a77 | 4726 | .opt_opc = vecop_list_sqadd, |
89e68b57 RH |
4727 | .write_aofs = true, |
4728 | .vece = MO_16 }, | |
4729 | { .fniv = gen_sqadd_vec, | |
4730 | .fno = gen_helper_gvec_sqadd_s, | |
53229a77 | 4731 | .opt_opc = vecop_list_sqadd, |
89e68b57 RH |
4732 | .write_aofs = true, |
4733 | .vece = MO_32 }, | |
4734 | { .fniv = gen_sqadd_vec, | |
4735 | .fno = gen_helper_gvec_sqadd_d, | |
53229a77 | 4736 | .opt_opc = vecop_list_sqadd, |
89e68b57 RH |
4737 | .write_aofs = true, |
4738 | .vece = MO_64 }, | |
4739 | }; | |
4740 | ||
4741 | static void gen_uqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, | |
4742 | TCGv_vec a, TCGv_vec b) | |
4743 | { | |
4744 | TCGv_vec x = tcg_temp_new_vec_matching(t); | |
4745 | tcg_gen_sub_vec(vece, x, a, b); | |
4746 | tcg_gen_ussub_vec(vece, t, a, b); | |
4747 | tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); | |
4748 | tcg_gen_or_vec(vece, sat, sat, x); | |
4749 | tcg_temp_free_vec(x); | |
4750 | } | |
4751 | ||
53229a77 RH |
4752 | static const TCGOpcode vecop_list_uqsub[] = { |
4753 | INDEX_op_ussub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0 | |
4754 | }; | |
4755 | ||
89e68b57 RH |
4756 | const GVecGen4 uqsub_op[4] = { |
4757 | { .fniv = gen_uqsub_vec, | |
4758 | .fno = gen_helper_gvec_uqsub_b, | |
53229a77 | 4759 | .opt_opc = vecop_list_uqsub, |
89e68b57 RH |
4760 | .write_aofs = true, |
4761 | .vece = MO_8 }, | |
4762 | { .fniv = gen_uqsub_vec, | |
4763 | .fno = gen_helper_gvec_uqsub_h, | |
53229a77 | 4764 | .opt_opc = vecop_list_uqsub, |
89e68b57 RH |
4765 | .write_aofs = true, |
4766 | .vece = MO_16 }, | |
4767 | { .fniv = gen_uqsub_vec, | |
4768 | .fno = gen_helper_gvec_uqsub_s, | |
53229a77 | 4769 | .opt_opc = vecop_list_uqsub, |
89e68b57 RH |
4770 | .write_aofs = true, |
4771 | .vece = MO_32 }, | |
4772 | { .fniv = gen_uqsub_vec, | |
4773 | .fno = gen_helper_gvec_uqsub_d, | |
53229a77 | 4774 | .opt_opc = vecop_list_uqsub, |
89e68b57 RH |
4775 | .write_aofs = true, |
4776 | .vece = MO_64 }, | |
4777 | }; | |
4778 | ||
4779 | static void gen_sqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, | |
4780 | TCGv_vec a, TCGv_vec b) | |
4781 | { | |
4782 | TCGv_vec x = tcg_temp_new_vec_matching(t); | |
4783 | tcg_gen_sub_vec(vece, x, a, b); | |
4784 | tcg_gen_sssub_vec(vece, t, a, b); | |
4785 | tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); | |
4786 | tcg_gen_or_vec(vece, sat, sat, x); | |
4787 | tcg_temp_free_vec(x); | |
4788 | } | |
4789 | ||
53229a77 RH |
4790 | static const TCGOpcode vecop_list_sqsub[] = { |
4791 | INDEX_op_sssub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0 | |
4792 | }; | |
4793 | ||
89e68b57 RH |
4794 | const GVecGen4 sqsub_op[4] = { |
4795 | { .fniv = gen_sqsub_vec, | |
4796 | .fno = gen_helper_gvec_sqsub_b, | |
53229a77 | 4797 | .opt_opc = vecop_list_sqsub, |
89e68b57 RH |
4798 | .write_aofs = true, |
4799 | .vece = MO_8 }, | |
4800 | { .fniv = gen_sqsub_vec, | |
4801 | .fno = gen_helper_gvec_sqsub_h, | |
53229a77 | 4802 | .opt_opc = vecop_list_sqsub, |
89e68b57 RH |
4803 | .write_aofs = true, |
4804 | .vece = MO_16 }, | |
4805 | { .fniv = gen_sqsub_vec, | |
4806 | .fno = gen_helper_gvec_sqsub_s, | |
53229a77 | 4807 | .opt_opc = vecop_list_sqsub, |
89e68b57 RH |
4808 | .write_aofs = true, |
4809 | .vece = MO_32 }, | |
4810 | { .fniv = gen_sqsub_vec, | |
4811 | .fno = gen_helper_gvec_sqsub_d, | |
53229a77 | 4812 | .opt_opc = vecop_list_sqsub, |
89e68b57 RH |
4813 | .write_aofs = true, |
4814 | .vece = MO_64 }, | |
4815 | }; | |
4816 | ||
9ee6e8bb PB |
4817 | /* Translate a NEON data processing instruction. Return nonzero if the |
4818 | instruction is invalid. | |
ad69471c PB |
4819 | We process data in a mixture of 32-bit and 64-bit chunks. |
4820 | Mostly we use 32-bit chunks so we can use normal scalar instructions. */ | |
2c0262af | 4821 | |
7dcc1f89 | 4822 | static int disas_neon_data_insn(DisasContext *s, uint32_t insn) |
9ee6e8bb PB |
4823 | { |
4824 | int op; | |
4825 | int q; | |
eabcd6fa | 4826 | int rd, rn, rm, rd_ofs, rn_ofs, rm_ofs; |
9ee6e8bb PB |
4827 | int size; |
4828 | int shift; | |
4829 | int pass; | |
4830 | int count; | |
4831 | int pairwise; | |
4832 | int u; | |
eabcd6fa | 4833 | int vec_size; |
f3cd8218 | 4834 | uint32_t imm; |
39d5492a | 4835 | TCGv_i32 tmp, tmp2, tmp3, tmp4, tmp5; |
1a66ac61 | 4836 | TCGv_ptr ptr1, ptr2, ptr3; |
a7812ae4 | 4837 | TCGv_i64 tmp64; |
9ee6e8bb | 4838 | |
2c7ffc41 PM |
4839 | /* FIXME: this access check should not take precedence over UNDEF |
4840 | * for invalid encodings; we will generate incorrect syndrome information | |
4841 | * for attempts to execute invalid vfp/neon encodings with FP disabled. | |
4842 | */ | |
9dbbc748 | 4843 | if (s->fp_excp_el) { |
2c7ffc41 | 4844 | gen_exception_insn(s, 4, EXCP_UDEF, |
4be42f40 | 4845 | syn_simd_access_trap(1, 0xe, false), s->fp_excp_el); |
2c7ffc41 PM |
4846 | return 0; |
4847 | } | |
4848 | ||
5df8bac1 | 4849 | if (!s->vfp_enabled) |
9ee6e8bb PB |
4850 | return 1; |
4851 | q = (insn & (1 << 6)) != 0; | |
4852 | u = (insn >> 24) & 1; | |
4853 | VFP_DREG_D(rd, insn); | |
4854 | VFP_DREG_N(rn, insn); | |
4855 | VFP_DREG_M(rm, insn); | |
4856 | size = (insn >> 20) & 3; | |
eabcd6fa RH |
4857 | vec_size = q ? 16 : 8; |
4858 | rd_ofs = neon_reg_offset(rd, 0); | |
4859 | rn_ofs = neon_reg_offset(rn, 0); | |
4860 | rm_ofs = neon_reg_offset(rm, 0); | |
4861 | ||
9ee6e8bb PB |
4862 | if ((insn & (1 << 23)) == 0) { |
4863 | /* Three register same length. */ | |
4864 | op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1); | |
62698be3 PM |
4865 | /* Catch invalid op and bad size combinations: UNDEF */ |
4866 | if ((neon_3r_sizes[op] & (1 << size)) == 0) { | |
4867 | return 1; | |
4868 | } | |
25f84f79 PM |
4869 | /* All insns of this form UNDEF for either this condition or the |
4870 | * superset of cases "Q==1"; we catch the latter later. | |
4871 | */ | |
4872 | if (q && ((rd | rn | rm) & 1)) { | |
4873 | return 1; | |
4874 | } | |
36a71934 RH |
4875 | switch (op) { |
4876 | case NEON_3R_SHA: | |
4877 | /* The SHA-1/SHA-256 3-register instructions require special | |
4878 | * treatment here, as their size field is overloaded as an | |
4879 | * op type selector, and they all consume their input in a | |
4880 | * single pass. | |
4881 | */ | |
f1ecb913 AB |
4882 | if (!q) { |
4883 | return 1; | |
4884 | } | |
4885 | if (!u) { /* SHA-1 */ | |
962fcbf2 | 4886 | if (!dc_isar_feature(aa32_sha1, s)) { |
f1ecb913 AB |
4887 | return 1; |
4888 | } | |
1a66ac61 RH |
4889 | ptr1 = vfp_reg_ptr(true, rd); |
4890 | ptr2 = vfp_reg_ptr(true, rn); | |
4891 | ptr3 = vfp_reg_ptr(true, rm); | |
f1ecb913 | 4892 | tmp4 = tcg_const_i32(size); |
1a66ac61 | 4893 | gen_helper_crypto_sha1_3reg(ptr1, ptr2, ptr3, tmp4); |
f1ecb913 AB |
4894 | tcg_temp_free_i32(tmp4); |
4895 | } else { /* SHA-256 */ | |
962fcbf2 | 4896 | if (!dc_isar_feature(aa32_sha2, s) || size == 3) { |
f1ecb913 AB |
4897 | return 1; |
4898 | } | |
1a66ac61 RH |
4899 | ptr1 = vfp_reg_ptr(true, rd); |
4900 | ptr2 = vfp_reg_ptr(true, rn); | |
4901 | ptr3 = vfp_reg_ptr(true, rm); | |
f1ecb913 AB |
4902 | switch (size) { |
4903 | case 0: | |
1a66ac61 | 4904 | gen_helper_crypto_sha256h(ptr1, ptr2, ptr3); |
f1ecb913 AB |
4905 | break; |
4906 | case 1: | |
1a66ac61 | 4907 | gen_helper_crypto_sha256h2(ptr1, ptr2, ptr3); |
f1ecb913 AB |
4908 | break; |
4909 | case 2: | |
1a66ac61 | 4910 | gen_helper_crypto_sha256su1(ptr1, ptr2, ptr3); |
f1ecb913 AB |
4911 | break; |
4912 | } | |
4913 | } | |
1a66ac61 RH |
4914 | tcg_temp_free_ptr(ptr1); |
4915 | tcg_temp_free_ptr(ptr2); | |
4916 | tcg_temp_free_ptr(ptr3); | |
f1ecb913 | 4917 | return 0; |
36a71934 RH |
4918 | |
4919 | case NEON_3R_VPADD_VQRDMLAH: | |
4920 | if (!u) { | |
4921 | break; /* VPADD */ | |
4922 | } | |
4923 | /* VQRDMLAH */ | |
4924 | switch (size) { | |
4925 | case 1: | |
4926 | return do_v81_helper(s, gen_helper_gvec_qrdmlah_s16, | |
4927 | q, rd, rn, rm); | |
4928 | case 2: | |
4929 | return do_v81_helper(s, gen_helper_gvec_qrdmlah_s32, | |
4930 | q, rd, rn, rm); | |
4931 | } | |
4932 | return 1; | |
4933 | ||
4934 | case NEON_3R_VFM_VQRDMLSH: | |
4935 | if (!u) { | |
4936 | /* VFM, VFMS */ | |
4937 | if (size == 1) { | |
4938 | return 1; | |
4939 | } | |
4940 | break; | |
4941 | } | |
4942 | /* VQRDMLSH */ | |
4943 | switch (size) { | |
4944 | case 1: | |
4945 | return do_v81_helper(s, gen_helper_gvec_qrdmlsh_s16, | |
4946 | q, rd, rn, rm); | |
4947 | case 2: | |
4948 | return do_v81_helper(s, gen_helper_gvec_qrdmlsh_s32, | |
4949 | q, rd, rn, rm); | |
4950 | } | |
4951 | return 1; | |
eabcd6fa RH |
4952 | |
4953 | case NEON_3R_LOGIC: /* Logic ops. */ | |
4954 | switch ((u << 2) | size) { | |
4955 | case 0: /* VAND */ | |
4956 | tcg_gen_gvec_and(0, rd_ofs, rn_ofs, rm_ofs, | |
4957 | vec_size, vec_size); | |
4958 | break; | |
4959 | case 1: /* VBIC */ | |
4960 | tcg_gen_gvec_andc(0, rd_ofs, rn_ofs, rm_ofs, | |
4961 | vec_size, vec_size); | |
4962 | break; | |
2900847f RH |
4963 | case 2: /* VORR */ |
4964 | tcg_gen_gvec_or(0, rd_ofs, rn_ofs, rm_ofs, | |
4965 | vec_size, vec_size); | |
eabcd6fa RH |
4966 | break; |
4967 | case 3: /* VORN */ | |
4968 | tcg_gen_gvec_orc(0, rd_ofs, rn_ofs, rm_ofs, | |
4969 | vec_size, vec_size); | |
4970 | break; | |
4971 | case 4: /* VEOR */ | |
4972 | tcg_gen_gvec_xor(0, rd_ofs, rn_ofs, rm_ofs, | |
4973 | vec_size, vec_size); | |
4974 | break; | |
4975 | case 5: /* VBSL */ | |
3a7a2b4e RH |
4976 | tcg_gen_gvec_bitsel(MO_8, rd_ofs, rd_ofs, rn_ofs, rm_ofs, |
4977 | vec_size, vec_size); | |
eabcd6fa RH |
4978 | break; |
4979 | case 6: /* VBIT */ | |
3a7a2b4e RH |
4980 | tcg_gen_gvec_bitsel(MO_8, rd_ofs, rm_ofs, rn_ofs, rd_ofs, |
4981 | vec_size, vec_size); | |
eabcd6fa RH |
4982 | break; |
4983 | case 7: /* VBIF */ | |
3a7a2b4e RH |
4984 | tcg_gen_gvec_bitsel(MO_8, rd_ofs, rm_ofs, rd_ofs, rn_ofs, |
4985 | vec_size, vec_size); | |
eabcd6fa RH |
4986 | break; |
4987 | } | |
4988 | return 0; | |
e4717ae0 RH |
4989 | |
4990 | case NEON_3R_VADD_VSUB: | |
4991 | if (u) { | |
4992 | tcg_gen_gvec_sub(size, rd_ofs, rn_ofs, rm_ofs, | |
4993 | vec_size, vec_size); | |
4994 | } else { | |
4995 | tcg_gen_gvec_add(size, rd_ofs, rn_ofs, rm_ofs, | |
4996 | vec_size, vec_size); | |
4997 | } | |
4998 | return 0; | |
82083184 | 4999 | |
89e68b57 RH |
5000 | case NEON_3R_VQADD: |
5001 | tcg_gen_gvec_4(rd_ofs, offsetof(CPUARMState, vfp.qc), | |
5002 | rn_ofs, rm_ofs, vec_size, vec_size, | |
5003 | (u ? uqadd_op : sqadd_op) + size); | |
2f143d3a | 5004 | return 0; |
89e68b57 RH |
5005 | |
5006 | case NEON_3R_VQSUB: | |
5007 | tcg_gen_gvec_4(rd_ofs, offsetof(CPUARMState, vfp.qc), | |
5008 | rn_ofs, rm_ofs, vec_size, vec_size, | |
5009 | (u ? uqsub_op : sqsub_op) + size); | |
2f143d3a | 5010 | return 0; |
89e68b57 | 5011 | |
82083184 RH |
5012 | case NEON_3R_VMUL: /* VMUL */ |
5013 | if (u) { | |
5014 | /* Polynomial case allows only P8 and is handled below. */ | |
5015 | if (size != 0) { | |
5016 | return 1; | |
5017 | } | |
5018 | } else { | |
5019 | tcg_gen_gvec_mul(size, rd_ofs, rn_ofs, rm_ofs, | |
5020 | vec_size, vec_size); | |
5021 | return 0; | |
5022 | } | |
5023 | break; | |
4a7832b0 RH |
5024 | |
5025 | case NEON_3R_VML: /* VMLA, VMLS */ | |
5026 | tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, vec_size, vec_size, | |
5027 | u ? &mls_op[size] : &mla_op[size]); | |
5028 | return 0; | |
ea580fa3 RH |
5029 | |
5030 | case NEON_3R_VTST_VCEQ: | |
5031 | if (u) { /* VCEQ */ | |
5032 | tcg_gen_gvec_cmp(TCG_COND_EQ, size, rd_ofs, rn_ofs, rm_ofs, | |
5033 | vec_size, vec_size); | |
5034 | } else { /* VTST */ | |
5035 | tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, | |
5036 | vec_size, vec_size, &cmtst_op[size]); | |
5037 | } | |
5038 | return 0; | |
5039 | ||
5040 | case NEON_3R_VCGT: | |
5041 | tcg_gen_gvec_cmp(u ? TCG_COND_GTU : TCG_COND_GT, size, | |
5042 | rd_ofs, rn_ofs, rm_ofs, vec_size, vec_size); | |
5043 | return 0; | |
5044 | ||
5045 | case NEON_3R_VCGE: | |
5046 | tcg_gen_gvec_cmp(u ? TCG_COND_GEU : TCG_COND_GE, size, | |
5047 | rd_ofs, rn_ofs, rm_ofs, vec_size, vec_size); | |
5048 | return 0; | |
6f278221 RH |
5049 | |
5050 | case NEON_3R_VMAX: | |
5051 | if (u) { | |
5052 | tcg_gen_gvec_umax(size, rd_ofs, rn_ofs, rm_ofs, | |
5053 | vec_size, vec_size); | |
5054 | } else { | |
5055 | tcg_gen_gvec_smax(size, rd_ofs, rn_ofs, rm_ofs, | |
5056 | vec_size, vec_size); | |
5057 | } | |
5058 | return 0; | |
5059 | case NEON_3R_VMIN: | |
5060 | if (u) { | |
5061 | tcg_gen_gvec_umin(size, rd_ofs, rn_ofs, rm_ofs, | |
5062 | vec_size, vec_size); | |
5063 | } else { | |
5064 | tcg_gen_gvec_smin(size, rd_ofs, rn_ofs, rm_ofs, | |
5065 | vec_size, vec_size); | |
5066 | } | |
5067 | return 0; | |
f1ecb913 | 5068 | } |
4a7832b0 | 5069 | |
eabcd6fa | 5070 | if (size == 3) { |
62698be3 | 5071 | /* 64-bit element instructions. */ |
9ee6e8bb | 5072 | for (pass = 0; pass < (q ? 2 : 1); pass++) { |
ad69471c PB |
5073 | neon_load_reg64(cpu_V0, rn + pass); |
5074 | neon_load_reg64(cpu_V1, rm + pass); | |
9ee6e8bb | 5075 | switch (op) { |
62698be3 | 5076 | case NEON_3R_VSHL: |
ad69471c PB |
5077 | if (u) { |
5078 | gen_helper_neon_shl_u64(cpu_V0, cpu_V1, cpu_V0); | |
5079 | } else { | |
5080 | gen_helper_neon_shl_s64(cpu_V0, cpu_V1, cpu_V0); | |
5081 | } | |
5082 | break; | |
62698be3 | 5083 | case NEON_3R_VQSHL: |
ad69471c | 5084 | if (u) { |
02da0b2d PM |
5085 | gen_helper_neon_qshl_u64(cpu_V0, cpu_env, |
5086 | cpu_V1, cpu_V0); | |
ad69471c | 5087 | } else { |
02da0b2d PM |
5088 | gen_helper_neon_qshl_s64(cpu_V0, cpu_env, |
5089 | cpu_V1, cpu_V0); | |
ad69471c PB |
5090 | } |
5091 | break; | |
62698be3 | 5092 | case NEON_3R_VRSHL: |
ad69471c PB |
5093 | if (u) { |
5094 | gen_helper_neon_rshl_u64(cpu_V0, cpu_V1, cpu_V0); | |
1e8d4eec | 5095 | } else { |
ad69471c PB |
5096 | gen_helper_neon_rshl_s64(cpu_V0, cpu_V1, cpu_V0); |
5097 | } | |
5098 | break; | |
62698be3 | 5099 | case NEON_3R_VQRSHL: |
ad69471c | 5100 | if (u) { |
02da0b2d PM |
5101 | gen_helper_neon_qrshl_u64(cpu_V0, cpu_env, |
5102 | cpu_V1, cpu_V0); | |
ad69471c | 5103 | } else { |
02da0b2d PM |
5104 | gen_helper_neon_qrshl_s64(cpu_V0, cpu_env, |
5105 | cpu_V1, cpu_V0); | |
1e8d4eec | 5106 | } |
9ee6e8bb | 5107 | break; |
9ee6e8bb PB |
5108 | default: |
5109 | abort(); | |
2c0262af | 5110 | } |
ad69471c | 5111 | neon_store_reg64(cpu_V0, rd + pass); |
2c0262af | 5112 | } |
9ee6e8bb | 5113 | return 0; |
2c0262af | 5114 | } |
25f84f79 | 5115 | pairwise = 0; |
9ee6e8bb | 5116 | switch (op) { |
62698be3 PM |
5117 | case NEON_3R_VSHL: |
5118 | case NEON_3R_VQSHL: | |
5119 | case NEON_3R_VRSHL: | |
5120 | case NEON_3R_VQRSHL: | |
9ee6e8bb | 5121 | { |
ad69471c PB |
5122 | int rtmp; |
5123 | /* Shift instruction operands are reversed. */ | |
5124 | rtmp = rn; | |
9ee6e8bb | 5125 | rn = rm; |
ad69471c | 5126 | rm = rtmp; |
9ee6e8bb | 5127 | } |
2c0262af | 5128 | break; |
36a71934 | 5129 | case NEON_3R_VPADD_VQRDMLAH: |
62698be3 PM |
5130 | case NEON_3R_VPMAX: |
5131 | case NEON_3R_VPMIN: | |
9ee6e8bb | 5132 | pairwise = 1; |
2c0262af | 5133 | break; |
25f84f79 PM |
5134 | case NEON_3R_FLOAT_ARITH: |
5135 | pairwise = (u && size < 2); /* if VPADD (float) */ | |
5136 | break; | |
5137 | case NEON_3R_FLOAT_MINMAX: | |
5138 | pairwise = u; /* if VPMIN/VPMAX (float) */ | |
5139 | break; | |
5140 | case NEON_3R_FLOAT_CMP: | |
5141 | if (!u && size) { | |
5142 | /* no encoding for U=0 C=1x */ | |
5143 | return 1; | |
5144 | } | |
5145 | break; | |
5146 | case NEON_3R_FLOAT_ACMP: | |
5147 | if (!u) { | |
5148 | return 1; | |
5149 | } | |
5150 | break; | |
505935fc WN |
5151 | case NEON_3R_FLOAT_MISC: |
5152 | /* VMAXNM/VMINNM in ARMv8 */ | |
d614a513 | 5153 | if (u && !arm_dc_feature(s, ARM_FEATURE_V8)) { |
25f84f79 PM |
5154 | return 1; |
5155 | } | |
2c0262af | 5156 | break; |
36a71934 RH |
5157 | case NEON_3R_VFM_VQRDMLSH: |
5158 | if (!arm_dc_feature(s, ARM_FEATURE_VFP4)) { | |
da97f52c PM |
5159 | return 1; |
5160 | } | |
5161 | break; | |
9ee6e8bb | 5162 | default: |
2c0262af | 5163 | break; |
9ee6e8bb | 5164 | } |
dd8fbd78 | 5165 | |
25f84f79 PM |
5166 | if (pairwise && q) { |
5167 | /* All the pairwise insns UNDEF if Q is set */ | |
5168 | return 1; | |
5169 | } | |
5170 | ||
9ee6e8bb PB |
5171 | for (pass = 0; pass < (q ? 4 : 2); pass++) { |
5172 | ||
5173 | if (pairwise) { | |
5174 | /* Pairwise. */ | |
a5a14945 JR |
5175 | if (pass < 1) { |
5176 | tmp = neon_load_reg(rn, 0); | |
5177 | tmp2 = neon_load_reg(rn, 1); | |
9ee6e8bb | 5178 | } else { |
a5a14945 JR |
5179 | tmp = neon_load_reg(rm, 0); |
5180 | tmp2 = neon_load_reg(rm, 1); | |
9ee6e8bb PB |
5181 | } |
5182 | } else { | |
5183 | /* Elementwise. */ | |
dd8fbd78 FN |
5184 | tmp = neon_load_reg(rn, pass); |
5185 | tmp2 = neon_load_reg(rm, pass); | |
9ee6e8bb PB |
5186 | } |
5187 | switch (op) { | |
62698be3 | 5188 | case NEON_3R_VHADD: |
9ee6e8bb PB |
5189 | GEN_NEON_INTEGER_OP(hadd); |
5190 | break; | |
62698be3 | 5191 | case NEON_3R_VRHADD: |
9ee6e8bb | 5192 | GEN_NEON_INTEGER_OP(rhadd); |
2c0262af | 5193 | break; |
62698be3 | 5194 | case NEON_3R_VHSUB: |
9ee6e8bb PB |
5195 | GEN_NEON_INTEGER_OP(hsub); |
5196 | break; | |
62698be3 | 5197 | case NEON_3R_VSHL: |
ad69471c | 5198 | GEN_NEON_INTEGER_OP(shl); |
2c0262af | 5199 | break; |
62698be3 | 5200 | case NEON_3R_VQSHL: |
02da0b2d | 5201 | GEN_NEON_INTEGER_OP_ENV(qshl); |
2c0262af | 5202 | break; |
62698be3 | 5203 | case NEON_3R_VRSHL: |
ad69471c | 5204 | GEN_NEON_INTEGER_OP(rshl); |
2c0262af | 5205 | break; |
62698be3 | 5206 | case NEON_3R_VQRSHL: |
02da0b2d | 5207 | GEN_NEON_INTEGER_OP_ENV(qrshl); |
9ee6e8bb | 5208 | break; |
62698be3 | 5209 | case NEON_3R_VABD: |
9ee6e8bb PB |
5210 | GEN_NEON_INTEGER_OP(abd); |
5211 | break; | |
62698be3 | 5212 | case NEON_3R_VABA: |
9ee6e8bb | 5213 | GEN_NEON_INTEGER_OP(abd); |
7d1b0095 | 5214 | tcg_temp_free_i32(tmp2); |
dd8fbd78 FN |
5215 | tmp2 = neon_load_reg(rd, pass); |
5216 | gen_neon_add(size, tmp, tmp2); | |
9ee6e8bb | 5217 | break; |
62698be3 | 5218 | case NEON_3R_VMUL: |
82083184 RH |
5219 | /* VMUL.P8; other cases already eliminated. */ |
5220 | gen_helper_neon_mul_p8(tmp, tmp, tmp2); | |
9ee6e8bb | 5221 | break; |
62698be3 | 5222 | case NEON_3R_VPMAX: |
9ee6e8bb PB |
5223 | GEN_NEON_INTEGER_OP(pmax); |
5224 | break; | |
62698be3 | 5225 | case NEON_3R_VPMIN: |
9ee6e8bb PB |
5226 | GEN_NEON_INTEGER_OP(pmin); |
5227 | break; | |
62698be3 | 5228 | case NEON_3R_VQDMULH_VQRDMULH: /* Multiply high. */ |
9ee6e8bb PB |
5229 | if (!u) { /* VQDMULH */ |
5230 | switch (size) { | |
02da0b2d PM |
5231 | case 1: |
5232 | gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); | |
5233 | break; | |
5234 | case 2: | |
5235 | gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); | |
5236 | break; | |
62698be3 | 5237 | default: abort(); |
9ee6e8bb | 5238 | } |
62698be3 | 5239 | } else { /* VQRDMULH */ |
9ee6e8bb | 5240 | switch (size) { |
02da0b2d PM |
5241 | case 1: |
5242 | gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); | |
5243 | break; | |
5244 | case 2: | |
5245 | gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); | |
5246 | break; | |
62698be3 | 5247 | default: abort(); |
9ee6e8bb PB |
5248 | } |
5249 | } | |
5250 | break; | |
36a71934 | 5251 | case NEON_3R_VPADD_VQRDMLAH: |
9ee6e8bb | 5252 | switch (size) { |
dd8fbd78 FN |
5253 | case 0: gen_helper_neon_padd_u8(tmp, tmp, tmp2); break; |
5254 | case 1: gen_helper_neon_padd_u16(tmp, tmp, tmp2); break; | |
5255 | case 2: tcg_gen_add_i32(tmp, tmp, tmp2); break; | |
62698be3 | 5256 | default: abort(); |
9ee6e8bb PB |
5257 | } |
5258 | break; | |
62698be3 | 5259 | case NEON_3R_FLOAT_ARITH: /* Floating point arithmetic. */ |
aa47cfdd PM |
5260 | { |
5261 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
9ee6e8bb PB |
5262 | switch ((u << 2) | size) { |
5263 | case 0: /* VADD */ | |
aa47cfdd PM |
5264 | case 4: /* VPADD */ |
5265 | gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); | |
9ee6e8bb PB |
5266 | break; |
5267 | case 2: /* VSUB */ | |
aa47cfdd | 5268 | gen_helper_vfp_subs(tmp, tmp, tmp2, fpstatus); |
9ee6e8bb PB |
5269 | break; |
5270 | case 6: /* VABD */ | |
aa47cfdd | 5271 | gen_helper_neon_abd_f32(tmp, tmp, tmp2, fpstatus); |
9ee6e8bb PB |
5272 | break; |
5273 | default: | |
62698be3 | 5274 | abort(); |
9ee6e8bb | 5275 | } |
aa47cfdd | 5276 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 5277 | break; |
aa47cfdd | 5278 | } |
62698be3 | 5279 | case NEON_3R_FLOAT_MULTIPLY: |
aa47cfdd PM |
5280 | { |
5281 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
5282 | gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus); | |
9ee6e8bb | 5283 | if (!u) { |
7d1b0095 | 5284 | tcg_temp_free_i32(tmp2); |
dd8fbd78 | 5285 | tmp2 = neon_load_reg(rd, pass); |
9ee6e8bb | 5286 | if (size == 0) { |
aa47cfdd | 5287 | gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); |
9ee6e8bb | 5288 | } else { |
aa47cfdd | 5289 | gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus); |
9ee6e8bb PB |
5290 | } |
5291 | } | |
aa47cfdd | 5292 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 5293 | break; |
aa47cfdd | 5294 | } |
62698be3 | 5295 | case NEON_3R_FLOAT_CMP: |
aa47cfdd PM |
5296 | { |
5297 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
9ee6e8bb | 5298 | if (!u) { |
aa47cfdd | 5299 | gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus); |
b5ff1b31 | 5300 | } else { |
aa47cfdd PM |
5301 | if (size == 0) { |
5302 | gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus); | |
5303 | } else { | |
5304 | gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus); | |
5305 | } | |
b5ff1b31 | 5306 | } |
aa47cfdd | 5307 | tcg_temp_free_ptr(fpstatus); |
2c0262af | 5308 | break; |
aa47cfdd | 5309 | } |
62698be3 | 5310 | case NEON_3R_FLOAT_ACMP: |
aa47cfdd PM |
5311 | { |
5312 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
5313 | if (size == 0) { | |
5314 | gen_helper_neon_acge_f32(tmp, tmp, tmp2, fpstatus); | |
5315 | } else { | |
5316 | gen_helper_neon_acgt_f32(tmp, tmp, tmp2, fpstatus); | |
5317 | } | |
5318 | tcg_temp_free_ptr(fpstatus); | |
2c0262af | 5319 | break; |
aa47cfdd | 5320 | } |
62698be3 | 5321 | case NEON_3R_FLOAT_MINMAX: |
aa47cfdd PM |
5322 | { |
5323 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
5324 | if (size == 0) { | |
f71a2ae5 | 5325 | gen_helper_vfp_maxs(tmp, tmp, tmp2, fpstatus); |
aa47cfdd | 5326 | } else { |
f71a2ae5 | 5327 | gen_helper_vfp_mins(tmp, tmp, tmp2, fpstatus); |
aa47cfdd PM |
5328 | } |
5329 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 5330 | break; |
aa47cfdd | 5331 | } |
505935fc WN |
5332 | case NEON_3R_FLOAT_MISC: |
5333 | if (u) { | |
5334 | /* VMAXNM/VMINNM */ | |
5335 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
5336 | if (size == 0) { | |
f71a2ae5 | 5337 | gen_helper_vfp_maxnums(tmp, tmp, tmp2, fpstatus); |
505935fc | 5338 | } else { |
f71a2ae5 | 5339 | gen_helper_vfp_minnums(tmp, tmp, tmp2, fpstatus); |
505935fc WN |
5340 | } |
5341 | tcg_temp_free_ptr(fpstatus); | |
5342 | } else { | |
5343 | if (size == 0) { | |
5344 | gen_helper_recps_f32(tmp, tmp, tmp2, cpu_env); | |
5345 | } else { | |
5346 | gen_helper_rsqrts_f32(tmp, tmp, tmp2, cpu_env); | |
5347 | } | |
5348 | } | |
2c0262af | 5349 | break; |
36a71934 | 5350 | case NEON_3R_VFM_VQRDMLSH: |
da97f52c PM |
5351 | { |
5352 | /* VFMA, VFMS: fused multiply-add */ | |
5353 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
5354 | TCGv_i32 tmp3 = neon_load_reg(rd, pass); | |
5355 | if (size) { | |
5356 | /* VFMS */ | |
5357 | gen_helper_vfp_negs(tmp, tmp); | |
5358 | } | |
5359 | gen_helper_vfp_muladds(tmp, tmp, tmp2, tmp3, fpstatus); | |
5360 | tcg_temp_free_i32(tmp3); | |
5361 | tcg_temp_free_ptr(fpstatus); | |
5362 | break; | |
5363 | } | |
9ee6e8bb PB |
5364 | default: |
5365 | abort(); | |
2c0262af | 5366 | } |
7d1b0095 | 5367 | tcg_temp_free_i32(tmp2); |
dd8fbd78 | 5368 | |
9ee6e8bb PB |
5369 | /* Save the result. For elementwise operations we can put it |
5370 | straight into the destination register. For pairwise operations | |
5371 | we have to be careful to avoid clobbering the source operands. */ | |
5372 | if (pairwise && rd == rm) { | |
dd8fbd78 | 5373 | neon_store_scratch(pass, tmp); |
9ee6e8bb | 5374 | } else { |
dd8fbd78 | 5375 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
5376 | } |
5377 | ||
5378 | } /* for pass */ | |
5379 | if (pairwise && rd == rm) { | |
5380 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
dd8fbd78 FN |
5381 | tmp = neon_load_scratch(pass); |
5382 | neon_store_reg(rd, pass, tmp); | |
9ee6e8bb PB |
5383 | } |
5384 | } | |
ad69471c | 5385 | /* End of 3 register same size operations. */ |
9ee6e8bb PB |
5386 | } else if (insn & (1 << 4)) { |
5387 | if ((insn & 0x00380080) != 0) { | |
5388 | /* Two registers and shift. */ | |
5389 | op = (insn >> 8) & 0xf; | |
5390 | if (insn & (1 << 7)) { | |
cc13115b PM |
5391 | /* 64-bit shift. */ |
5392 | if (op > 7) { | |
5393 | return 1; | |
5394 | } | |
9ee6e8bb PB |
5395 | size = 3; |
5396 | } else { | |
5397 | size = 2; | |
5398 | while ((insn & (1 << (size + 19))) == 0) | |
5399 | size--; | |
5400 | } | |
5401 | shift = (insn >> 16) & ((1 << (3 + size)) - 1); | |
9ee6e8bb PB |
5402 | if (op < 8) { |
5403 | /* Shift by immediate: | |
5404 | VSHR, VSRA, VRSHR, VRSRA, VSRI, VSHL, VQSHL, VQSHLU. */ | |
cc13115b PM |
5405 | if (q && ((rd | rm) & 1)) { |
5406 | return 1; | |
5407 | } | |
5408 | if (!u && (op == 4 || op == 6)) { | |
5409 | return 1; | |
5410 | } | |
9ee6e8bb PB |
5411 | /* Right shifts are encoded as N - shift, where N is the |
5412 | element size in bits. */ | |
1dc8425e | 5413 | if (op <= 4) { |
9ee6e8bb | 5414 | shift = shift - (1 << (size + 3)); |
1dc8425e RH |
5415 | } |
5416 | ||
5417 | switch (op) { | |
5418 | case 0: /* VSHR */ | |
5419 | /* Right shift comes here negative. */ | |
5420 | shift = -shift; | |
5421 | /* Shifts larger than the element size are architecturally | |
5422 | * valid. Unsigned results in all zeros; signed results | |
5423 | * in all sign bits. | |
5424 | */ | |
5425 | if (!u) { | |
5426 | tcg_gen_gvec_sari(size, rd_ofs, rm_ofs, | |
5427 | MIN(shift, (8 << size) - 1), | |
5428 | vec_size, vec_size); | |
5429 | } else if (shift >= 8 << size) { | |
5430 | tcg_gen_gvec_dup8i(rd_ofs, vec_size, vec_size, 0); | |
5431 | } else { | |
5432 | tcg_gen_gvec_shri(size, rd_ofs, rm_ofs, shift, | |
5433 | vec_size, vec_size); | |
5434 | } | |
5435 | return 0; | |
5436 | ||
41f6c113 RH |
5437 | case 1: /* VSRA */ |
5438 | /* Right shift comes here negative. */ | |
5439 | shift = -shift; | |
5440 | /* Shifts larger than the element size are architecturally | |
5441 | * valid. Unsigned results in all zeros; signed results | |
5442 | * in all sign bits. | |
5443 | */ | |
5444 | if (!u) { | |
5445 | tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, vec_size, | |
5446 | MIN(shift, (8 << size) - 1), | |
5447 | &ssra_op[size]); | |
5448 | } else if (shift >= 8 << size) { | |
5449 | /* rd += 0 */ | |
5450 | } else { | |
5451 | tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, vec_size, | |
5452 | shift, &usra_op[size]); | |
5453 | } | |
5454 | return 0; | |
5455 | ||
f3cd8218 RH |
5456 | case 4: /* VSRI */ |
5457 | if (!u) { | |
5458 | return 1; | |
5459 | } | |
5460 | /* Right shift comes here negative. */ | |
5461 | shift = -shift; | |
5462 | /* Shift out of range leaves destination unchanged. */ | |
5463 | if (shift < 8 << size) { | |
5464 | tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, vec_size, | |
5465 | shift, &sri_op[size]); | |
5466 | } | |
5467 | return 0; | |
5468 | ||
1dc8425e | 5469 | case 5: /* VSHL, VSLI */ |
f3cd8218 RH |
5470 | if (u) { /* VSLI */ |
5471 | /* Shift out of range leaves destination unchanged. */ | |
5472 | if (shift < 8 << size) { | |
5473 | tcg_gen_gvec_2i(rd_ofs, rm_ofs, vec_size, | |
5474 | vec_size, shift, &sli_op[size]); | |
5475 | } | |
5476 | } else { /* VSHL */ | |
1dc8425e RH |
5477 | /* Shifts larger than the element size are |
5478 | * architecturally valid and results in zero. | |
5479 | */ | |
5480 | if (shift >= 8 << size) { | |
5481 | tcg_gen_gvec_dup8i(rd_ofs, vec_size, vec_size, 0); | |
5482 | } else { | |
5483 | tcg_gen_gvec_shli(size, rd_ofs, rm_ofs, shift, | |
5484 | vec_size, vec_size); | |
5485 | } | |
1dc8425e | 5486 | } |
f3cd8218 | 5487 | return 0; |
1dc8425e RH |
5488 | } |
5489 | ||
9ee6e8bb PB |
5490 | if (size == 3) { |
5491 | count = q + 1; | |
5492 | } else { | |
5493 | count = q ? 4: 2; | |
5494 | } | |
1dc8425e RH |
5495 | |
5496 | /* To avoid excessive duplication of ops we implement shift | |
5497 | * by immediate using the variable shift operations. | |
5498 | */ | |
5499 | imm = dup_const(size, shift); | |
9ee6e8bb PB |
5500 | |
5501 | for (pass = 0; pass < count; pass++) { | |
ad69471c PB |
5502 | if (size == 3) { |
5503 | neon_load_reg64(cpu_V0, rm + pass); | |
5504 | tcg_gen_movi_i64(cpu_V1, imm); | |
5505 | switch (op) { | |
ad69471c PB |
5506 | case 2: /* VRSHR */ |
5507 | case 3: /* VRSRA */ | |
5508 | if (u) | |
5509 | gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, cpu_V1); | |
9ee6e8bb | 5510 | else |
ad69471c | 5511 | gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1); |
9ee6e8bb | 5512 | break; |
0322b26e | 5513 | case 6: /* VQSHLU */ |
02da0b2d PM |
5514 | gen_helper_neon_qshlu_s64(cpu_V0, cpu_env, |
5515 | cpu_V0, cpu_V1); | |
ad69471c | 5516 | break; |
0322b26e PM |
5517 | case 7: /* VQSHL */ |
5518 | if (u) { | |
02da0b2d | 5519 | gen_helper_neon_qshl_u64(cpu_V0, cpu_env, |
0322b26e PM |
5520 | cpu_V0, cpu_V1); |
5521 | } else { | |
02da0b2d | 5522 | gen_helper_neon_qshl_s64(cpu_V0, cpu_env, |
0322b26e PM |
5523 | cpu_V0, cpu_V1); |
5524 | } | |
9ee6e8bb | 5525 | break; |
1dc8425e RH |
5526 | default: |
5527 | g_assert_not_reached(); | |
9ee6e8bb | 5528 | } |
41f6c113 | 5529 | if (op == 3) { |
ad69471c | 5530 | /* Accumulate. */ |
5371cb81 | 5531 | neon_load_reg64(cpu_V1, rd + pass); |
ad69471c | 5532 | tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1); |
ad69471c PB |
5533 | } |
5534 | neon_store_reg64(cpu_V0, rd + pass); | |
5535 | } else { /* size < 3 */ | |
5536 | /* Operands in T0 and T1. */ | |
dd8fbd78 | 5537 | tmp = neon_load_reg(rm, pass); |
7d1b0095 | 5538 | tmp2 = tcg_temp_new_i32(); |
dd8fbd78 | 5539 | tcg_gen_movi_i32(tmp2, imm); |
ad69471c | 5540 | switch (op) { |
ad69471c PB |
5541 | case 2: /* VRSHR */ |
5542 | case 3: /* VRSRA */ | |
5543 | GEN_NEON_INTEGER_OP(rshl); | |
5544 | break; | |
0322b26e | 5545 | case 6: /* VQSHLU */ |
ad69471c | 5546 | switch (size) { |
0322b26e | 5547 | case 0: |
02da0b2d PM |
5548 | gen_helper_neon_qshlu_s8(tmp, cpu_env, |
5549 | tmp, tmp2); | |
0322b26e PM |
5550 | break; |
5551 | case 1: | |
02da0b2d PM |
5552 | gen_helper_neon_qshlu_s16(tmp, cpu_env, |
5553 | tmp, tmp2); | |
0322b26e PM |
5554 | break; |
5555 | case 2: | |
02da0b2d PM |
5556 | gen_helper_neon_qshlu_s32(tmp, cpu_env, |
5557 | tmp, tmp2); | |
0322b26e PM |
5558 | break; |
5559 | default: | |
cc13115b | 5560 | abort(); |
ad69471c PB |
5561 | } |
5562 | break; | |
0322b26e | 5563 | case 7: /* VQSHL */ |
02da0b2d | 5564 | GEN_NEON_INTEGER_OP_ENV(qshl); |
0322b26e | 5565 | break; |
1dc8425e RH |
5566 | default: |
5567 | g_assert_not_reached(); | |
ad69471c | 5568 | } |
7d1b0095 | 5569 | tcg_temp_free_i32(tmp2); |
ad69471c | 5570 | |
41f6c113 | 5571 | if (op == 3) { |
ad69471c | 5572 | /* Accumulate. */ |
dd8fbd78 | 5573 | tmp2 = neon_load_reg(rd, pass); |
5371cb81 | 5574 | gen_neon_add(size, tmp, tmp2); |
7d1b0095 | 5575 | tcg_temp_free_i32(tmp2); |
ad69471c | 5576 | } |
dd8fbd78 | 5577 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
5578 | } |
5579 | } /* for pass */ | |
5580 | } else if (op < 10) { | |
ad69471c | 5581 | /* Shift by immediate and narrow: |
9ee6e8bb | 5582 | VSHRN, VRSHRN, VQSHRN, VQRSHRN. */ |
0b36f4cd | 5583 | int input_unsigned = (op == 8) ? !u : u; |
cc13115b PM |
5584 | if (rm & 1) { |
5585 | return 1; | |
5586 | } | |
9ee6e8bb PB |
5587 | shift = shift - (1 << (size + 3)); |
5588 | size++; | |
92cdfaeb | 5589 | if (size == 3) { |
a7812ae4 | 5590 | tmp64 = tcg_const_i64(shift); |
92cdfaeb PM |
5591 | neon_load_reg64(cpu_V0, rm); |
5592 | neon_load_reg64(cpu_V1, rm + 1); | |
5593 | for (pass = 0; pass < 2; pass++) { | |
5594 | TCGv_i64 in; | |
5595 | if (pass == 0) { | |
5596 | in = cpu_V0; | |
5597 | } else { | |
5598 | in = cpu_V1; | |
5599 | } | |
ad69471c | 5600 | if (q) { |
0b36f4cd | 5601 | if (input_unsigned) { |
92cdfaeb | 5602 | gen_helper_neon_rshl_u64(cpu_V0, in, tmp64); |
0b36f4cd | 5603 | } else { |
92cdfaeb | 5604 | gen_helper_neon_rshl_s64(cpu_V0, in, tmp64); |
0b36f4cd | 5605 | } |
ad69471c | 5606 | } else { |
0b36f4cd | 5607 | if (input_unsigned) { |
92cdfaeb | 5608 | gen_helper_neon_shl_u64(cpu_V0, in, tmp64); |
0b36f4cd | 5609 | } else { |
92cdfaeb | 5610 | gen_helper_neon_shl_s64(cpu_V0, in, tmp64); |
0b36f4cd | 5611 | } |
ad69471c | 5612 | } |
7d1b0095 | 5613 | tmp = tcg_temp_new_i32(); |
92cdfaeb PM |
5614 | gen_neon_narrow_op(op == 8, u, size - 1, tmp, cpu_V0); |
5615 | neon_store_reg(rd, pass, tmp); | |
5616 | } /* for pass */ | |
5617 | tcg_temp_free_i64(tmp64); | |
5618 | } else { | |
5619 | if (size == 1) { | |
5620 | imm = (uint16_t)shift; | |
5621 | imm |= imm << 16; | |
2c0262af | 5622 | } else { |
92cdfaeb PM |
5623 | /* size == 2 */ |
5624 | imm = (uint32_t)shift; | |
5625 | } | |
5626 | tmp2 = tcg_const_i32(imm); | |
5627 | tmp4 = neon_load_reg(rm + 1, 0); | |
5628 | tmp5 = neon_load_reg(rm + 1, 1); | |
5629 | for (pass = 0; pass < 2; pass++) { | |
5630 | if (pass == 0) { | |
5631 | tmp = neon_load_reg(rm, 0); | |
5632 | } else { | |
5633 | tmp = tmp4; | |
5634 | } | |
0b36f4cd CL |
5635 | gen_neon_shift_narrow(size, tmp, tmp2, q, |
5636 | input_unsigned); | |
92cdfaeb PM |
5637 | if (pass == 0) { |
5638 | tmp3 = neon_load_reg(rm, 1); | |
5639 | } else { | |
5640 | tmp3 = tmp5; | |
5641 | } | |
0b36f4cd CL |
5642 | gen_neon_shift_narrow(size, tmp3, tmp2, q, |
5643 | input_unsigned); | |
36aa55dc | 5644 | tcg_gen_concat_i32_i64(cpu_V0, tmp, tmp3); |
7d1b0095 PM |
5645 | tcg_temp_free_i32(tmp); |
5646 | tcg_temp_free_i32(tmp3); | |
5647 | tmp = tcg_temp_new_i32(); | |
92cdfaeb PM |
5648 | gen_neon_narrow_op(op == 8, u, size - 1, tmp, cpu_V0); |
5649 | neon_store_reg(rd, pass, tmp); | |
5650 | } /* for pass */ | |
c6067f04 | 5651 | tcg_temp_free_i32(tmp2); |
b75263d6 | 5652 | } |
9ee6e8bb | 5653 | } else if (op == 10) { |
cc13115b PM |
5654 | /* VSHLL, VMOVL */ |
5655 | if (q || (rd & 1)) { | |
9ee6e8bb | 5656 | return 1; |
cc13115b | 5657 | } |
ad69471c PB |
5658 | tmp = neon_load_reg(rm, 0); |
5659 | tmp2 = neon_load_reg(rm, 1); | |
9ee6e8bb | 5660 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
5661 | if (pass == 1) |
5662 | tmp = tmp2; | |
5663 | ||
5664 | gen_neon_widen(cpu_V0, tmp, size, u); | |
9ee6e8bb | 5665 | |
9ee6e8bb PB |
5666 | if (shift != 0) { |
5667 | /* The shift is less than the width of the source | |
ad69471c PB |
5668 | type, so we can just shift the whole register. */ |
5669 | tcg_gen_shli_i64(cpu_V0, cpu_V0, shift); | |
acdf01ef CL |
5670 | /* Widen the result of shift: we need to clear |
5671 | * the potential overflow bits resulting from | |
5672 | * left bits of the narrow input appearing as | |
5673 | * right bits of left the neighbour narrow | |
5674 | * input. */ | |
ad69471c PB |
5675 | if (size < 2 || !u) { |
5676 | uint64_t imm64; | |
5677 | if (size == 0) { | |
5678 | imm = (0xffu >> (8 - shift)); | |
5679 | imm |= imm << 16; | |
acdf01ef | 5680 | } else if (size == 1) { |
ad69471c | 5681 | imm = 0xffff >> (16 - shift); |
acdf01ef CL |
5682 | } else { |
5683 | /* size == 2 */ | |
5684 | imm = 0xffffffff >> (32 - shift); | |
5685 | } | |
5686 | if (size < 2) { | |
5687 | imm64 = imm | (((uint64_t)imm) << 32); | |
5688 | } else { | |
5689 | imm64 = imm; | |
9ee6e8bb | 5690 | } |
acdf01ef | 5691 | tcg_gen_andi_i64(cpu_V0, cpu_V0, ~imm64); |
9ee6e8bb PB |
5692 | } |
5693 | } | |
ad69471c | 5694 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb | 5695 | } |
f73534a5 | 5696 | } else if (op >= 14) { |
9ee6e8bb | 5697 | /* VCVT fixed-point. */ |
c253dd78 PM |
5698 | TCGv_ptr fpst; |
5699 | TCGv_i32 shiftv; | |
5700 | VFPGenFixPointFn *fn; | |
5701 | ||
cc13115b PM |
5702 | if (!(insn & (1 << 21)) || (q && ((rd | rm) & 1))) { |
5703 | return 1; | |
5704 | } | |
c253dd78 PM |
5705 | |
5706 | if (!(op & 1)) { | |
5707 | if (u) { | |
5708 | fn = gen_helper_vfp_ultos; | |
5709 | } else { | |
5710 | fn = gen_helper_vfp_sltos; | |
5711 | } | |
5712 | } else { | |
5713 | if (u) { | |
5714 | fn = gen_helper_vfp_touls_round_to_zero; | |
5715 | } else { | |
5716 | fn = gen_helper_vfp_tosls_round_to_zero; | |
5717 | } | |
5718 | } | |
5719 | ||
f73534a5 PM |
5720 | /* We have already masked out the must-be-1 top bit of imm6, |
5721 | * hence this 32-shift where the ARM ARM has 64-imm6. | |
5722 | */ | |
5723 | shift = 32 - shift; | |
c253dd78 PM |
5724 | fpst = get_fpstatus_ptr(1); |
5725 | shiftv = tcg_const_i32(shift); | |
9ee6e8bb | 5726 | for (pass = 0; pass < (q ? 4 : 2); pass++) { |
c253dd78 PM |
5727 | TCGv_i32 tmpf = neon_load_reg(rm, pass); |
5728 | fn(tmpf, tmpf, shiftv, fpst); | |
5729 | neon_store_reg(rd, pass, tmpf); | |
2c0262af | 5730 | } |
c253dd78 PM |
5731 | tcg_temp_free_ptr(fpst); |
5732 | tcg_temp_free_i32(shiftv); | |
2c0262af | 5733 | } else { |
9ee6e8bb PB |
5734 | return 1; |
5735 | } | |
5736 | } else { /* (insn & 0x00380080) == 0 */ | |
246fa4ac RH |
5737 | int invert, reg_ofs, vec_size; |
5738 | ||
7d80fee5 PM |
5739 | if (q && (rd & 1)) { |
5740 | return 1; | |
5741 | } | |
9ee6e8bb PB |
5742 | |
5743 | op = (insn >> 8) & 0xf; | |
5744 | /* One register and immediate. */ | |
5745 | imm = (u << 7) | ((insn >> 12) & 0x70) | (insn & 0xf); | |
5746 | invert = (insn & (1 << 5)) != 0; | |
7d80fee5 PM |
5747 | /* Note that op = 2,3,4,5,6,7,10,11,12,13 imm=0 is UNPREDICTABLE. |
5748 | * We choose to not special-case this and will behave as if a | |
5749 | * valid constant encoding of 0 had been given. | |
5750 | */ | |
9ee6e8bb PB |
5751 | switch (op) { |
5752 | case 0: case 1: | |
5753 | /* no-op */ | |
5754 | break; | |
5755 | case 2: case 3: | |
5756 | imm <<= 8; | |
5757 | break; | |
5758 | case 4: case 5: | |
5759 | imm <<= 16; | |
5760 | break; | |
5761 | case 6: case 7: | |
5762 | imm <<= 24; | |
5763 | break; | |
5764 | case 8: case 9: | |
5765 | imm |= imm << 16; | |
5766 | break; | |
5767 | case 10: case 11: | |
5768 | imm = (imm << 8) | (imm << 24); | |
5769 | break; | |
5770 | case 12: | |
8e31209e | 5771 | imm = (imm << 8) | 0xff; |
9ee6e8bb PB |
5772 | break; |
5773 | case 13: | |
5774 | imm = (imm << 16) | 0xffff; | |
5775 | break; | |
5776 | case 14: | |
5777 | imm |= (imm << 8) | (imm << 16) | (imm << 24); | |
246fa4ac | 5778 | if (invert) { |
9ee6e8bb | 5779 | imm = ~imm; |
246fa4ac | 5780 | } |
9ee6e8bb PB |
5781 | break; |
5782 | case 15: | |
7d80fee5 PM |
5783 | if (invert) { |
5784 | return 1; | |
5785 | } | |
9ee6e8bb PB |
5786 | imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19) |
5787 | | ((imm & 0x40) ? (0x1f << 25) : (1 << 30)); | |
5788 | break; | |
5789 | } | |
246fa4ac | 5790 | if (invert) { |
9ee6e8bb | 5791 | imm = ~imm; |
246fa4ac | 5792 | } |
9ee6e8bb | 5793 | |
246fa4ac RH |
5794 | reg_ofs = neon_reg_offset(rd, 0); |
5795 | vec_size = q ? 16 : 8; | |
5796 | ||
5797 | if (op & 1 && op < 12) { | |
5798 | if (invert) { | |
5799 | /* The immediate value has already been inverted, | |
5800 | * so BIC becomes AND. | |
5801 | */ | |
5802 | tcg_gen_gvec_andi(MO_32, reg_ofs, reg_ofs, imm, | |
5803 | vec_size, vec_size); | |
9ee6e8bb | 5804 | } else { |
246fa4ac RH |
5805 | tcg_gen_gvec_ori(MO_32, reg_ofs, reg_ofs, imm, |
5806 | vec_size, vec_size); | |
5807 | } | |
5808 | } else { | |
5809 | /* VMOV, VMVN. */ | |
5810 | if (op == 14 && invert) { | |
5811 | TCGv_i64 t64 = tcg_temp_new_i64(); | |
5812 | ||
5813 | for (pass = 0; pass <= q; ++pass) { | |
5814 | uint64_t val = 0; | |
a5a14945 | 5815 | int n; |
246fa4ac RH |
5816 | |
5817 | for (n = 0; n < 8; n++) { | |
5818 | if (imm & (1 << (n + pass * 8))) { | |
5819 | val |= 0xffull << (n * 8); | |
5820 | } | |
9ee6e8bb | 5821 | } |
246fa4ac RH |
5822 | tcg_gen_movi_i64(t64, val); |
5823 | neon_store_reg64(t64, rd + pass); | |
9ee6e8bb | 5824 | } |
246fa4ac RH |
5825 | tcg_temp_free_i64(t64); |
5826 | } else { | |
5827 | tcg_gen_gvec_dup32i(reg_ofs, vec_size, vec_size, imm); | |
9ee6e8bb PB |
5828 | } |
5829 | } | |
5830 | } | |
e4b3861d | 5831 | } else { /* (insn & 0x00800010 == 0x00800000) */ |
9ee6e8bb PB |
5832 | if (size != 3) { |
5833 | op = (insn >> 8) & 0xf; | |
5834 | if ((insn & (1 << 6)) == 0) { | |
5835 | /* Three registers of different lengths. */ | |
5836 | int src1_wide; | |
5837 | int src2_wide; | |
5838 | int prewiden; | |
526d0096 PM |
5839 | /* undefreq: bit 0 : UNDEF if size == 0 |
5840 | * bit 1 : UNDEF if size == 1 | |
5841 | * bit 2 : UNDEF if size == 2 | |
5842 | * bit 3 : UNDEF if U == 1 | |
5843 | * Note that [2:0] set implies 'always UNDEF' | |
695272dc PM |
5844 | */ |
5845 | int undefreq; | |
5846 | /* prewiden, src1_wide, src2_wide, undefreq */ | |
5847 | static const int neon_3reg_wide[16][4] = { | |
5848 | {1, 0, 0, 0}, /* VADDL */ | |
5849 | {1, 1, 0, 0}, /* VADDW */ | |
5850 | {1, 0, 0, 0}, /* VSUBL */ | |
5851 | {1, 1, 0, 0}, /* VSUBW */ | |
5852 | {0, 1, 1, 0}, /* VADDHN */ | |
5853 | {0, 0, 0, 0}, /* VABAL */ | |
5854 | {0, 1, 1, 0}, /* VSUBHN */ | |
5855 | {0, 0, 0, 0}, /* VABDL */ | |
5856 | {0, 0, 0, 0}, /* VMLAL */ | |
526d0096 | 5857 | {0, 0, 0, 9}, /* VQDMLAL */ |
695272dc | 5858 | {0, 0, 0, 0}, /* VMLSL */ |
526d0096 | 5859 | {0, 0, 0, 9}, /* VQDMLSL */ |
695272dc | 5860 | {0, 0, 0, 0}, /* Integer VMULL */ |
526d0096 | 5861 | {0, 0, 0, 1}, /* VQDMULL */ |
4e624eda | 5862 | {0, 0, 0, 0xa}, /* Polynomial VMULL */ |
526d0096 | 5863 | {0, 0, 0, 7}, /* Reserved: always UNDEF */ |
9ee6e8bb PB |
5864 | }; |
5865 | ||
5866 | prewiden = neon_3reg_wide[op][0]; | |
5867 | src1_wide = neon_3reg_wide[op][1]; | |
5868 | src2_wide = neon_3reg_wide[op][2]; | |
695272dc | 5869 | undefreq = neon_3reg_wide[op][3]; |
9ee6e8bb | 5870 | |
526d0096 PM |
5871 | if ((undefreq & (1 << size)) || |
5872 | ((undefreq & 8) && u)) { | |
695272dc PM |
5873 | return 1; |
5874 | } | |
5875 | if ((src1_wide && (rn & 1)) || | |
5876 | (src2_wide && (rm & 1)) || | |
5877 | (!src2_wide && (rd & 1))) { | |
ad69471c | 5878 | return 1; |
695272dc | 5879 | } |
ad69471c | 5880 | |
4e624eda PM |
5881 | /* Handle VMULL.P64 (Polynomial 64x64 to 128 bit multiply) |
5882 | * outside the loop below as it only performs a single pass. | |
5883 | */ | |
5884 | if (op == 14 && size == 2) { | |
5885 | TCGv_i64 tcg_rn, tcg_rm, tcg_rd; | |
5886 | ||
962fcbf2 | 5887 | if (!dc_isar_feature(aa32_pmull, s)) { |
4e624eda PM |
5888 | return 1; |
5889 | } | |
5890 | tcg_rn = tcg_temp_new_i64(); | |
5891 | tcg_rm = tcg_temp_new_i64(); | |
5892 | tcg_rd = tcg_temp_new_i64(); | |
5893 | neon_load_reg64(tcg_rn, rn); | |
5894 | neon_load_reg64(tcg_rm, rm); | |
5895 | gen_helper_neon_pmull_64_lo(tcg_rd, tcg_rn, tcg_rm); | |
5896 | neon_store_reg64(tcg_rd, rd); | |
5897 | gen_helper_neon_pmull_64_hi(tcg_rd, tcg_rn, tcg_rm); | |
5898 | neon_store_reg64(tcg_rd, rd + 1); | |
5899 | tcg_temp_free_i64(tcg_rn); | |
5900 | tcg_temp_free_i64(tcg_rm); | |
5901 | tcg_temp_free_i64(tcg_rd); | |
5902 | return 0; | |
5903 | } | |
5904 | ||
9ee6e8bb PB |
5905 | /* Avoid overlapping operands. Wide source operands are |
5906 | always aligned so will never overlap with wide | |
5907 | destinations in problematic ways. */ | |
8f8e3aa4 | 5908 | if (rd == rm && !src2_wide) { |
dd8fbd78 FN |
5909 | tmp = neon_load_reg(rm, 1); |
5910 | neon_store_scratch(2, tmp); | |
8f8e3aa4 | 5911 | } else if (rd == rn && !src1_wide) { |
dd8fbd78 FN |
5912 | tmp = neon_load_reg(rn, 1); |
5913 | neon_store_scratch(2, tmp); | |
9ee6e8bb | 5914 | } |
f764718d | 5915 | tmp3 = NULL; |
9ee6e8bb | 5916 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
5917 | if (src1_wide) { |
5918 | neon_load_reg64(cpu_V0, rn + pass); | |
f764718d | 5919 | tmp = NULL; |
9ee6e8bb | 5920 | } else { |
ad69471c | 5921 | if (pass == 1 && rd == rn) { |
dd8fbd78 | 5922 | tmp = neon_load_scratch(2); |
9ee6e8bb | 5923 | } else { |
ad69471c PB |
5924 | tmp = neon_load_reg(rn, pass); |
5925 | } | |
5926 | if (prewiden) { | |
5927 | gen_neon_widen(cpu_V0, tmp, size, u); | |
9ee6e8bb PB |
5928 | } |
5929 | } | |
ad69471c PB |
5930 | if (src2_wide) { |
5931 | neon_load_reg64(cpu_V1, rm + pass); | |
f764718d | 5932 | tmp2 = NULL; |
9ee6e8bb | 5933 | } else { |
ad69471c | 5934 | if (pass == 1 && rd == rm) { |
dd8fbd78 | 5935 | tmp2 = neon_load_scratch(2); |
9ee6e8bb | 5936 | } else { |
ad69471c PB |
5937 | tmp2 = neon_load_reg(rm, pass); |
5938 | } | |
5939 | if (prewiden) { | |
5940 | gen_neon_widen(cpu_V1, tmp2, size, u); | |
9ee6e8bb | 5941 | } |
9ee6e8bb PB |
5942 | } |
5943 | switch (op) { | |
5944 | case 0: case 1: case 4: /* VADDL, VADDW, VADDHN, VRADDHN */ | |
ad69471c | 5945 | gen_neon_addl(size); |
9ee6e8bb | 5946 | break; |
79b0e534 | 5947 | case 2: case 3: case 6: /* VSUBL, VSUBW, VSUBHN, VRSUBHN */ |
ad69471c | 5948 | gen_neon_subl(size); |
9ee6e8bb PB |
5949 | break; |
5950 | case 5: case 7: /* VABAL, VABDL */ | |
5951 | switch ((size << 1) | u) { | |
ad69471c PB |
5952 | case 0: |
5953 | gen_helper_neon_abdl_s16(cpu_V0, tmp, tmp2); | |
5954 | break; | |
5955 | case 1: | |
5956 | gen_helper_neon_abdl_u16(cpu_V0, tmp, tmp2); | |
5957 | break; | |
5958 | case 2: | |
5959 | gen_helper_neon_abdl_s32(cpu_V0, tmp, tmp2); | |
5960 | break; | |
5961 | case 3: | |
5962 | gen_helper_neon_abdl_u32(cpu_V0, tmp, tmp2); | |
5963 | break; | |
5964 | case 4: | |
5965 | gen_helper_neon_abdl_s64(cpu_V0, tmp, tmp2); | |
5966 | break; | |
5967 | case 5: | |
5968 | gen_helper_neon_abdl_u64(cpu_V0, tmp, tmp2); | |
5969 | break; | |
9ee6e8bb PB |
5970 | default: abort(); |
5971 | } | |
7d1b0095 PM |
5972 | tcg_temp_free_i32(tmp2); |
5973 | tcg_temp_free_i32(tmp); | |
9ee6e8bb PB |
5974 | break; |
5975 | case 8: case 9: case 10: case 11: case 12: case 13: | |
5976 | /* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */ | |
ad69471c | 5977 | gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
9ee6e8bb PB |
5978 | break; |
5979 | case 14: /* Polynomial VMULL */ | |
e5ca24cb | 5980 | gen_helper_neon_mull_p8(cpu_V0, tmp, tmp2); |
7d1b0095 PM |
5981 | tcg_temp_free_i32(tmp2); |
5982 | tcg_temp_free_i32(tmp); | |
e5ca24cb | 5983 | break; |
695272dc PM |
5984 | default: /* 15 is RESERVED: caught earlier */ |
5985 | abort(); | |
9ee6e8bb | 5986 | } |
ebcd88ce PM |
5987 | if (op == 13) { |
5988 | /* VQDMULL */ | |
5989 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); | |
5990 | neon_store_reg64(cpu_V0, rd + pass); | |
5991 | } else if (op == 5 || (op >= 8 && op <= 11)) { | |
9ee6e8bb | 5992 | /* Accumulate. */ |
ebcd88ce | 5993 | neon_load_reg64(cpu_V1, rd + pass); |
9ee6e8bb | 5994 | switch (op) { |
4dc064e6 PM |
5995 | case 10: /* VMLSL */ |
5996 | gen_neon_negl(cpu_V0, size); | |
5997 | /* Fall through */ | |
5998 | case 5: case 8: /* VABAL, VMLAL */ | |
ad69471c | 5999 | gen_neon_addl(size); |
9ee6e8bb PB |
6000 | break; |
6001 | case 9: case 11: /* VQDMLAL, VQDMLSL */ | |
ad69471c | 6002 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
4dc064e6 PM |
6003 | if (op == 11) { |
6004 | gen_neon_negl(cpu_V0, size); | |
6005 | } | |
ad69471c PB |
6006 | gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
6007 | break; | |
9ee6e8bb PB |
6008 | default: |
6009 | abort(); | |
6010 | } | |
ad69471c | 6011 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
6012 | } else if (op == 4 || op == 6) { |
6013 | /* Narrowing operation. */ | |
7d1b0095 | 6014 | tmp = tcg_temp_new_i32(); |
79b0e534 | 6015 | if (!u) { |
9ee6e8bb | 6016 | switch (size) { |
ad69471c PB |
6017 | case 0: |
6018 | gen_helper_neon_narrow_high_u8(tmp, cpu_V0); | |
6019 | break; | |
6020 | case 1: | |
6021 | gen_helper_neon_narrow_high_u16(tmp, cpu_V0); | |
6022 | break; | |
6023 | case 2: | |
6024 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); | |
ecc7b3aa | 6025 | tcg_gen_extrl_i64_i32(tmp, cpu_V0); |
ad69471c | 6026 | break; |
9ee6e8bb PB |
6027 | default: abort(); |
6028 | } | |
6029 | } else { | |
6030 | switch (size) { | |
ad69471c PB |
6031 | case 0: |
6032 | gen_helper_neon_narrow_round_high_u8(tmp, cpu_V0); | |
6033 | break; | |
6034 | case 1: | |
6035 | gen_helper_neon_narrow_round_high_u16(tmp, cpu_V0); | |
6036 | break; | |
6037 | case 2: | |
6038 | tcg_gen_addi_i64(cpu_V0, cpu_V0, 1u << 31); | |
6039 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); | |
ecc7b3aa | 6040 | tcg_gen_extrl_i64_i32(tmp, cpu_V0); |
ad69471c | 6041 | break; |
9ee6e8bb PB |
6042 | default: abort(); |
6043 | } | |
6044 | } | |
ad69471c PB |
6045 | if (pass == 0) { |
6046 | tmp3 = tmp; | |
6047 | } else { | |
6048 | neon_store_reg(rd, 0, tmp3); | |
6049 | neon_store_reg(rd, 1, tmp); | |
6050 | } | |
9ee6e8bb PB |
6051 | } else { |
6052 | /* Write back the result. */ | |
ad69471c | 6053 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
6054 | } |
6055 | } | |
6056 | } else { | |
3e3326df PM |
6057 | /* Two registers and a scalar. NB that for ops of this form |
6058 | * the ARM ARM labels bit 24 as Q, but it is in our variable | |
6059 | * 'u', not 'q'. | |
6060 | */ | |
6061 | if (size == 0) { | |
6062 | return 1; | |
6063 | } | |
9ee6e8bb | 6064 | switch (op) { |
9ee6e8bb | 6065 | case 1: /* Float VMLA scalar */ |
9ee6e8bb | 6066 | case 5: /* Floating point VMLS scalar */ |
9ee6e8bb | 6067 | case 9: /* Floating point VMUL scalar */ |
3e3326df PM |
6068 | if (size == 1) { |
6069 | return 1; | |
6070 | } | |
6071 | /* fall through */ | |
6072 | case 0: /* Integer VMLA scalar */ | |
6073 | case 4: /* Integer VMLS scalar */ | |
6074 | case 8: /* Integer VMUL scalar */ | |
9ee6e8bb PB |
6075 | case 12: /* VQDMULH scalar */ |
6076 | case 13: /* VQRDMULH scalar */ | |
3e3326df PM |
6077 | if (u && ((rd | rn) & 1)) { |
6078 | return 1; | |
6079 | } | |
dd8fbd78 FN |
6080 | tmp = neon_get_scalar(size, rm); |
6081 | neon_store_scratch(0, tmp); | |
9ee6e8bb | 6082 | for (pass = 0; pass < (u ? 4 : 2); pass++) { |
dd8fbd78 FN |
6083 | tmp = neon_load_scratch(0); |
6084 | tmp2 = neon_load_reg(rn, pass); | |
9ee6e8bb PB |
6085 | if (op == 12) { |
6086 | if (size == 1) { | |
02da0b2d | 6087 | gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 6088 | } else { |
02da0b2d | 6089 | gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb PB |
6090 | } |
6091 | } else if (op == 13) { | |
6092 | if (size == 1) { | |
02da0b2d | 6093 | gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 6094 | } else { |
02da0b2d | 6095 | gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb PB |
6096 | } |
6097 | } else if (op & 1) { | |
aa47cfdd PM |
6098 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); |
6099 | gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus); | |
6100 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb PB |
6101 | } else { |
6102 | switch (size) { | |
dd8fbd78 FN |
6103 | case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
6104 | case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; | |
6105 | case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; | |
3e3326df | 6106 | default: abort(); |
9ee6e8bb PB |
6107 | } |
6108 | } | |
7d1b0095 | 6109 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
6110 | if (op < 8) { |
6111 | /* Accumulate. */ | |
dd8fbd78 | 6112 | tmp2 = neon_load_reg(rd, pass); |
9ee6e8bb PB |
6113 | switch (op) { |
6114 | case 0: | |
dd8fbd78 | 6115 | gen_neon_add(size, tmp, tmp2); |
9ee6e8bb PB |
6116 | break; |
6117 | case 1: | |
aa47cfdd PM |
6118 | { |
6119 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6120 | gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); | |
6121 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6122 | break; |
aa47cfdd | 6123 | } |
9ee6e8bb | 6124 | case 4: |
dd8fbd78 | 6125 | gen_neon_rsb(size, tmp, tmp2); |
9ee6e8bb PB |
6126 | break; |
6127 | case 5: | |
aa47cfdd PM |
6128 | { |
6129 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6130 | gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus); | |
6131 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6132 | break; |
aa47cfdd | 6133 | } |
9ee6e8bb PB |
6134 | default: |
6135 | abort(); | |
6136 | } | |
7d1b0095 | 6137 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 6138 | } |
dd8fbd78 | 6139 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
6140 | } |
6141 | break; | |
9ee6e8bb | 6142 | case 3: /* VQDMLAL scalar */ |
9ee6e8bb | 6143 | case 7: /* VQDMLSL scalar */ |
9ee6e8bb | 6144 | case 11: /* VQDMULL scalar */ |
3e3326df | 6145 | if (u == 1) { |
ad69471c | 6146 | return 1; |
3e3326df PM |
6147 | } |
6148 | /* fall through */ | |
6149 | case 2: /* VMLAL sclar */ | |
6150 | case 6: /* VMLSL scalar */ | |
6151 | case 10: /* VMULL scalar */ | |
6152 | if (rd & 1) { | |
6153 | return 1; | |
6154 | } | |
dd8fbd78 | 6155 | tmp2 = neon_get_scalar(size, rm); |
c6067f04 CL |
6156 | /* We need a copy of tmp2 because gen_neon_mull |
6157 | * deletes it during pass 0. */ | |
7d1b0095 | 6158 | tmp4 = tcg_temp_new_i32(); |
c6067f04 | 6159 | tcg_gen_mov_i32(tmp4, tmp2); |
dd8fbd78 | 6160 | tmp3 = neon_load_reg(rn, 1); |
ad69471c | 6161 | |
9ee6e8bb | 6162 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
6163 | if (pass == 0) { |
6164 | tmp = neon_load_reg(rn, 0); | |
9ee6e8bb | 6165 | } else { |
dd8fbd78 | 6166 | tmp = tmp3; |
c6067f04 | 6167 | tmp2 = tmp4; |
9ee6e8bb | 6168 | } |
ad69471c | 6169 | gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
ad69471c PB |
6170 | if (op != 11) { |
6171 | neon_load_reg64(cpu_V1, rd + pass); | |
9ee6e8bb | 6172 | } |
9ee6e8bb | 6173 | switch (op) { |
4dc064e6 PM |
6174 | case 6: |
6175 | gen_neon_negl(cpu_V0, size); | |
6176 | /* Fall through */ | |
6177 | case 2: | |
ad69471c | 6178 | gen_neon_addl(size); |
9ee6e8bb PB |
6179 | break; |
6180 | case 3: case 7: | |
ad69471c | 6181 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
4dc064e6 PM |
6182 | if (op == 7) { |
6183 | gen_neon_negl(cpu_V0, size); | |
6184 | } | |
ad69471c | 6185 | gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
9ee6e8bb PB |
6186 | break; |
6187 | case 10: | |
6188 | /* no-op */ | |
6189 | break; | |
6190 | case 11: | |
ad69471c | 6191 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
9ee6e8bb PB |
6192 | break; |
6193 | default: | |
6194 | abort(); | |
6195 | } | |
ad69471c | 6196 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb | 6197 | } |
61adacc8 RH |
6198 | break; |
6199 | case 14: /* VQRDMLAH scalar */ | |
6200 | case 15: /* VQRDMLSH scalar */ | |
6201 | { | |
6202 | NeonGenThreeOpEnvFn *fn; | |
dd8fbd78 | 6203 | |
962fcbf2 | 6204 | if (!dc_isar_feature(aa32_rdm, s)) { |
61adacc8 RH |
6205 | return 1; |
6206 | } | |
6207 | if (u && ((rd | rn) & 1)) { | |
6208 | return 1; | |
6209 | } | |
6210 | if (op == 14) { | |
6211 | if (size == 1) { | |
6212 | fn = gen_helper_neon_qrdmlah_s16; | |
6213 | } else { | |
6214 | fn = gen_helper_neon_qrdmlah_s32; | |
6215 | } | |
6216 | } else { | |
6217 | if (size == 1) { | |
6218 | fn = gen_helper_neon_qrdmlsh_s16; | |
6219 | } else { | |
6220 | fn = gen_helper_neon_qrdmlsh_s32; | |
6221 | } | |
6222 | } | |
dd8fbd78 | 6223 | |
61adacc8 RH |
6224 | tmp2 = neon_get_scalar(size, rm); |
6225 | for (pass = 0; pass < (u ? 4 : 2); pass++) { | |
6226 | tmp = neon_load_reg(rn, pass); | |
6227 | tmp3 = neon_load_reg(rd, pass); | |
6228 | fn(tmp, cpu_env, tmp, tmp2, tmp3); | |
6229 | tcg_temp_free_i32(tmp3); | |
6230 | neon_store_reg(rd, pass, tmp); | |
6231 | } | |
6232 | tcg_temp_free_i32(tmp2); | |
6233 | } | |
9ee6e8bb | 6234 | break; |
61adacc8 RH |
6235 | default: |
6236 | g_assert_not_reached(); | |
9ee6e8bb PB |
6237 | } |
6238 | } | |
6239 | } else { /* size == 3 */ | |
6240 | if (!u) { | |
6241 | /* Extract. */ | |
9ee6e8bb | 6242 | imm = (insn >> 8) & 0xf; |
ad69471c PB |
6243 | |
6244 | if (imm > 7 && !q) | |
6245 | return 1; | |
6246 | ||
52579ea1 PM |
6247 | if (q && ((rd | rn | rm) & 1)) { |
6248 | return 1; | |
6249 | } | |
6250 | ||
ad69471c PB |
6251 | if (imm == 0) { |
6252 | neon_load_reg64(cpu_V0, rn); | |
6253 | if (q) { | |
6254 | neon_load_reg64(cpu_V1, rn + 1); | |
9ee6e8bb | 6255 | } |
ad69471c PB |
6256 | } else if (imm == 8) { |
6257 | neon_load_reg64(cpu_V0, rn + 1); | |
6258 | if (q) { | |
6259 | neon_load_reg64(cpu_V1, rm); | |
9ee6e8bb | 6260 | } |
ad69471c | 6261 | } else if (q) { |
a7812ae4 | 6262 | tmp64 = tcg_temp_new_i64(); |
ad69471c PB |
6263 | if (imm < 8) { |
6264 | neon_load_reg64(cpu_V0, rn); | |
a7812ae4 | 6265 | neon_load_reg64(tmp64, rn + 1); |
ad69471c PB |
6266 | } else { |
6267 | neon_load_reg64(cpu_V0, rn + 1); | |
a7812ae4 | 6268 | neon_load_reg64(tmp64, rm); |
ad69471c PB |
6269 | } |
6270 | tcg_gen_shri_i64(cpu_V0, cpu_V0, (imm & 7) * 8); | |
a7812ae4 | 6271 | tcg_gen_shli_i64(cpu_V1, tmp64, 64 - ((imm & 7) * 8)); |
ad69471c PB |
6272 | tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
6273 | if (imm < 8) { | |
6274 | neon_load_reg64(cpu_V1, rm); | |
9ee6e8bb | 6275 | } else { |
ad69471c PB |
6276 | neon_load_reg64(cpu_V1, rm + 1); |
6277 | imm -= 8; | |
9ee6e8bb | 6278 | } |
ad69471c | 6279 | tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
a7812ae4 PB |
6280 | tcg_gen_shri_i64(tmp64, tmp64, imm * 8); |
6281 | tcg_gen_or_i64(cpu_V1, cpu_V1, tmp64); | |
b75263d6 | 6282 | tcg_temp_free_i64(tmp64); |
ad69471c | 6283 | } else { |
a7812ae4 | 6284 | /* BUGFIX */ |
ad69471c | 6285 | neon_load_reg64(cpu_V0, rn); |
a7812ae4 | 6286 | tcg_gen_shri_i64(cpu_V0, cpu_V0, imm * 8); |
ad69471c | 6287 | neon_load_reg64(cpu_V1, rm); |
a7812ae4 | 6288 | tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
ad69471c PB |
6289 | tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
6290 | } | |
6291 | neon_store_reg64(cpu_V0, rd); | |
6292 | if (q) { | |
6293 | neon_store_reg64(cpu_V1, rd + 1); | |
9ee6e8bb PB |
6294 | } |
6295 | } else if ((insn & (1 << 11)) == 0) { | |
6296 | /* Two register misc. */ | |
6297 | op = ((insn >> 12) & 0x30) | ((insn >> 7) & 0xf); | |
6298 | size = (insn >> 18) & 3; | |
600b828c PM |
6299 | /* UNDEF for unknown op values and bad op-size combinations */ |
6300 | if ((neon_2rm_sizes[op] & (1 << size)) == 0) { | |
6301 | return 1; | |
6302 | } | |
fe8fcf3d PM |
6303 | if (neon_2rm_is_v8_op(op) && |
6304 | !arm_dc_feature(s, ARM_FEATURE_V8)) { | |
6305 | return 1; | |
6306 | } | |
fc2a9b37 PM |
6307 | if ((op != NEON_2RM_VMOVN && op != NEON_2RM_VQMOVN) && |
6308 | q && ((rm | rd) & 1)) { | |
6309 | return 1; | |
6310 | } | |
9ee6e8bb | 6311 | switch (op) { |
600b828c | 6312 | case NEON_2RM_VREV64: |
9ee6e8bb | 6313 | for (pass = 0; pass < (q ? 2 : 1); pass++) { |
dd8fbd78 FN |
6314 | tmp = neon_load_reg(rm, pass * 2); |
6315 | tmp2 = neon_load_reg(rm, pass * 2 + 1); | |
9ee6e8bb | 6316 | switch (size) { |
dd8fbd78 FN |
6317 | case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
6318 | case 1: gen_swap_half(tmp); break; | |
9ee6e8bb PB |
6319 | case 2: /* no-op */ break; |
6320 | default: abort(); | |
6321 | } | |
dd8fbd78 | 6322 | neon_store_reg(rd, pass * 2 + 1, tmp); |
9ee6e8bb | 6323 | if (size == 2) { |
dd8fbd78 | 6324 | neon_store_reg(rd, pass * 2, tmp2); |
9ee6e8bb | 6325 | } else { |
9ee6e8bb | 6326 | switch (size) { |
dd8fbd78 FN |
6327 | case 0: tcg_gen_bswap32_i32(tmp2, tmp2); break; |
6328 | case 1: gen_swap_half(tmp2); break; | |
9ee6e8bb PB |
6329 | default: abort(); |
6330 | } | |
dd8fbd78 | 6331 | neon_store_reg(rd, pass * 2, tmp2); |
9ee6e8bb PB |
6332 | } |
6333 | } | |
6334 | break; | |
600b828c PM |
6335 | case NEON_2RM_VPADDL: case NEON_2RM_VPADDL_U: |
6336 | case NEON_2RM_VPADAL: case NEON_2RM_VPADAL_U: | |
ad69471c PB |
6337 | for (pass = 0; pass < q + 1; pass++) { |
6338 | tmp = neon_load_reg(rm, pass * 2); | |
6339 | gen_neon_widen(cpu_V0, tmp, size, op & 1); | |
6340 | tmp = neon_load_reg(rm, pass * 2 + 1); | |
6341 | gen_neon_widen(cpu_V1, tmp, size, op & 1); | |
6342 | switch (size) { | |
6343 | case 0: gen_helper_neon_paddl_u16(CPU_V001); break; | |
6344 | case 1: gen_helper_neon_paddl_u32(CPU_V001); break; | |
6345 | case 2: tcg_gen_add_i64(CPU_V001); break; | |
6346 | default: abort(); | |
6347 | } | |
600b828c | 6348 | if (op >= NEON_2RM_VPADAL) { |
9ee6e8bb | 6349 | /* Accumulate. */ |
ad69471c PB |
6350 | neon_load_reg64(cpu_V1, rd + pass); |
6351 | gen_neon_addl(size); | |
9ee6e8bb | 6352 | } |
ad69471c | 6353 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
6354 | } |
6355 | break; | |
600b828c | 6356 | case NEON_2RM_VTRN: |
9ee6e8bb | 6357 | if (size == 2) { |
a5a14945 | 6358 | int n; |
9ee6e8bb | 6359 | for (n = 0; n < (q ? 4 : 2); n += 2) { |
dd8fbd78 FN |
6360 | tmp = neon_load_reg(rm, n); |
6361 | tmp2 = neon_load_reg(rd, n + 1); | |
6362 | neon_store_reg(rm, n, tmp2); | |
6363 | neon_store_reg(rd, n + 1, tmp); | |
9ee6e8bb PB |
6364 | } |
6365 | } else { | |
6366 | goto elementwise; | |
6367 | } | |
6368 | break; | |
600b828c | 6369 | case NEON_2RM_VUZP: |
02acedf9 | 6370 | if (gen_neon_unzip(rd, rm, size, q)) { |
9ee6e8bb | 6371 | return 1; |
9ee6e8bb PB |
6372 | } |
6373 | break; | |
600b828c | 6374 | case NEON_2RM_VZIP: |
d68a6f3a | 6375 | if (gen_neon_zip(rd, rm, size, q)) { |
9ee6e8bb | 6376 | return 1; |
9ee6e8bb PB |
6377 | } |
6378 | break; | |
600b828c PM |
6379 | case NEON_2RM_VMOVN: case NEON_2RM_VQMOVN: |
6380 | /* also VQMOVUN; op field and mnemonics don't line up */ | |
fc2a9b37 PM |
6381 | if (rm & 1) { |
6382 | return 1; | |
6383 | } | |
f764718d | 6384 | tmp2 = NULL; |
9ee6e8bb | 6385 | for (pass = 0; pass < 2; pass++) { |
ad69471c | 6386 | neon_load_reg64(cpu_V0, rm + pass); |
7d1b0095 | 6387 | tmp = tcg_temp_new_i32(); |
600b828c PM |
6388 | gen_neon_narrow_op(op == NEON_2RM_VMOVN, q, size, |
6389 | tmp, cpu_V0); | |
ad69471c PB |
6390 | if (pass == 0) { |
6391 | tmp2 = tmp; | |
6392 | } else { | |
6393 | neon_store_reg(rd, 0, tmp2); | |
6394 | neon_store_reg(rd, 1, tmp); | |
9ee6e8bb | 6395 | } |
9ee6e8bb PB |
6396 | } |
6397 | break; | |
600b828c | 6398 | case NEON_2RM_VSHLL: |
fc2a9b37 | 6399 | if (q || (rd & 1)) { |
9ee6e8bb | 6400 | return 1; |
600b828c | 6401 | } |
ad69471c PB |
6402 | tmp = neon_load_reg(rm, 0); |
6403 | tmp2 = neon_load_reg(rm, 1); | |
9ee6e8bb | 6404 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
6405 | if (pass == 1) |
6406 | tmp = tmp2; | |
6407 | gen_neon_widen(cpu_V0, tmp, size, 1); | |
30d11a2a | 6408 | tcg_gen_shli_i64(cpu_V0, cpu_V0, 8 << size); |
ad69471c | 6409 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
6410 | } |
6411 | break; | |
600b828c | 6412 | case NEON_2RM_VCVT_F16_F32: |
486624fc AB |
6413 | { |
6414 | TCGv_ptr fpst; | |
6415 | TCGv_i32 ahp; | |
6416 | ||
602f6e42 | 6417 | if (!dc_isar_feature(aa32_fp16_spconv, s) || |
fc2a9b37 PM |
6418 | q || (rm & 1)) { |
6419 | return 1; | |
6420 | } | |
486624fc AB |
6421 | fpst = get_fpstatus_ptr(true); |
6422 | ahp = get_ahp_flag(); | |
58f2682e PM |
6423 | tmp = neon_load_reg(rm, 0); |
6424 | gen_helper_vfp_fcvt_f32_to_f16(tmp, tmp, fpst, ahp); | |
6425 | tmp2 = neon_load_reg(rm, 1); | |
6426 | gen_helper_vfp_fcvt_f32_to_f16(tmp2, tmp2, fpst, ahp); | |
60011498 PB |
6427 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
6428 | tcg_gen_or_i32(tmp2, tmp2, tmp); | |
58f2682e PM |
6429 | tcg_temp_free_i32(tmp); |
6430 | tmp = neon_load_reg(rm, 2); | |
6431 | gen_helper_vfp_fcvt_f32_to_f16(tmp, tmp, fpst, ahp); | |
6432 | tmp3 = neon_load_reg(rm, 3); | |
60011498 | 6433 | neon_store_reg(rd, 0, tmp2); |
58f2682e PM |
6434 | gen_helper_vfp_fcvt_f32_to_f16(tmp3, tmp3, fpst, ahp); |
6435 | tcg_gen_shli_i32(tmp3, tmp3, 16); | |
6436 | tcg_gen_or_i32(tmp3, tmp3, tmp); | |
6437 | neon_store_reg(rd, 1, tmp3); | |
7d1b0095 | 6438 | tcg_temp_free_i32(tmp); |
486624fc AB |
6439 | tcg_temp_free_i32(ahp); |
6440 | tcg_temp_free_ptr(fpst); | |
60011498 | 6441 | break; |
486624fc | 6442 | } |
600b828c | 6443 | case NEON_2RM_VCVT_F32_F16: |
486624fc AB |
6444 | { |
6445 | TCGv_ptr fpst; | |
6446 | TCGv_i32 ahp; | |
602f6e42 | 6447 | if (!dc_isar_feature(aa32_fp16_spconv, s) || |
fc2a9b37 PM |
6448 | q || (rd & 1)) { |
6449 | return 1; | |
6450 | } | |
486624fc AB |
6451 | fpst = get_fpstatus_ptr(true); |
6452 | ahp = get_ahp_flag(); | |
7d1b0095 | 6453 | tmp3 = tcg_temp_new_i32(); |
60011498 PB |
6454 | tmp = neon_load_reg(rm, 0); |
6455 | tmp2 = neon_load_reg(rm, 1); | |
6456 | tcg_gen_ext16u_i32(tmp3, tmp); | |
b66f6b99 PM |
6457 | gen_helper_vfp_fcvt_f16_to_f32(tmp3, tmp3, fpst, ahp); |
6458 | neon_store_reg(rd, 0, tmp3); | |
6459 | tcg_gen_shri_i32(tmp, tmp, 16); | |
6460 | gen_helper_vfp_fcvt_f16_to_f32(tmp, tmp, fpst, ahp); | |
6461 | neon_store_reg(rd, 1, tmp); | |
6462 | tmp3 = tcg_temp_new_i32(); | |
60011498 | 6463 | tcg_gen_ext16u_i32(tmp3, tmp2); |
b66f6b99 PM |
6464 | gen_helper_vfp_fcvt_f16_to_f32(tmp3, tmp3, fpst, ahp); |
6465 | neon_store_reg(rd, 2, tmp3); | |
6466 | tcg_gen_shri_i32(tmp2, tmp2, 16); | |
6467 | gen_helper_vfp_fcvt_f16_to_f32(tmp2, tmp2, fpst, ahp); | |
6468 | neon_store_reg(rd, 3, tmp2); | |
486624fc AB |
6469 | tcg_temp_free_i32(ahp); |
6470 | tcg_temp_free_ptr(fpst); | |
60011498 | 6471 | break; |
486624fc | 6472 | } |
9d935509 | 6473 | case NEON_2RM_AESE: case NEON_2RM_AESMC: |
962fcbf2 | 6474 | if (!dc_isar_feature(aa32_aes, s) || ((rm | rd) & 1)) { |
9d935509 AB |
6475 | return 1; |
6476 | } | |
1a66ac61 RH |
6477 | ptr1 = vfp_reg_ptr(true, rd); |
6478 | ptr2 = vfp_reg_ptr(true, rm); | |
9d935509 AB |
6479 | |
6480 | /* Bit 6 is the lowest opcode bit; it distinguishes between | |
6481 | * encryption (AESE/AESMC) and decryption (AESD/AESIMC) | |
6482 | */ | |
6483 | tmp3 = tcg_const_i32(extract32(insn, 6, 1)); | |
6484 | ||
6485 | if (op == NEON_2RM_AESE) { | |
1a66ac61 | 6486 | gen_helper_crypto_aese(ptr1, ptr2, tmp3); |
9d935509 | 6487 | } else { |
1a66ac61 | 6488 | gen_helper_crypto_aesmc(ptr1, ptr2, tmp3); |
9d935509 | 6489 | } |
1a66ac61 RH |
6490 | tcg_temp_free_ptr(ptr1); |
6491 | tcg_temp_free_ptr(ptr2); | |
9d935509 AB |
6492 | tcg_temp_free_i32(tmp3); |
6493 | break; | |
f1ecb913 | 6494 | case NEON_2RM_SHA1H: |
962fcbf2 | 6495 | if (!dc_isar_feature(aa32_sha1, s) || ((rm | rd) & 1)) { |
f1ecb913 AB |
6496 | return 1; |
6497 | } | |
1a66ac61 RH |
6498 | ptr1 = vfp_reg_ptr(true, rd); |
6499 | ptr2 = vfp_reg_ptr(true, rm); | |
f1ecb913 | 6500 | |
1a66ac61 | 6501 | gen_helper_crypto_sha1h(ptr1, ptr2); |
f1ecb913 | 6502 | |
1a66ac61 RH |
6503 | tcg_temp_free_ptr(ptr1); |
6504 | tcg_temp_free_ptr(ptr2); | |
f1ecb913 AB |
6505 | break; |
6506 | case NEON_2RM_SHA1SU1: | |
6507 | if ((rm | rd) & 1) { | |
6508 | return 1; | |
6509 | } | |
6510 | /* bit 6 (q): set -> SHA256SU0, cleared -> SHA1SU1 */ | |
6511 | if (q) { | |
962fcbf2 | 6512 | if (!dc_isar_feature(aa32_sha2, s)) { |
f1ecb913 AB |
6513 | return 1; |
6514 | } | |
962fcbf2 | 6515 | } else if (!dc_isar_feature(aa32_sha1, s)) { |
f1ecb913 AB |
6516 | return 1; |
6517 | } | |
1a66ac61 RH |
6518 | ptr1 = vfp_reg_ptr(true, rd); |
6519 | ptr2 = vfp_reg_ptr(true, rm); | |
f1ecb913 | 6520 | if (q) { |
1a66ac61 | 6521 | gen_helper_crypto_sha256su0(ptr1, ptr2); |
f1ecb913 | 6522 | } else { |
1a66ac61 | 6523 | gen_helper_crypto_sha1su1(ptr1, ptr2); |
f1ecb913 | 6524 | } |
1a66ac61 RH |
6525 | tcg_temp_free_ptr(ptr1); |
6526 | tcg_temp_free_ptr(ptr2); | |
f1ecb913 | 6527 | break; |
4bf940be RH |
6528 | |
6529 | case NEON_2RM_VMVN: | |
6530 | tcg_gen_gvec_not(0, rd_ofs, rm_ofs, vec_size, vec_size); | |
6531 | break; | |
6532 | case NEON_2RM_VNEG: | |
6533 | tcg_gen_gvec_neg(size, rd_ofs, rm_ofs, vec_size, vec_size); | |
6534 | break; | |
4e027a71 RH |
6535 | case NEON_2RM_VABS: |
6536 | tcg_gen_gvec_abs(size, rd_ofs, rm_ofs, vec_size, vec_size); | |
6537 | break; | |
4bf940be | 6538 | |
9ee6e8bb PB |
6539 | default: |
6540 | elementwise: | |
6541 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
60737ed5 | 6542 | tmp = neon_load_reg(rm, pass); |
9ee6e8bb | 6543 | switch (op) { |
600b828c | 6544 | case NEON_2RM_VREV32: |
9ee6e8bb | 6545 | switch (size) { |
dd8fbd78 FN |
6546 | case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
6547 | case 1: gen_swap_half(tmp); break; | |
600b828c | 6548 | default: abort(); |
9ee6e8bb PB |
6549 | } |
6550 | break; | |
600b828c | 6551 | case NEON_2RM_VREV16: |
dd8fbd78 | 6552 | gen_rev16(tmp); |
9ee6e8bb | 6553 | break; |
600b828c | 6554 | case NEON_2RM_VCLS: |
9ee6e8bb | 6555 | switch (size) { |
dd8fbd78 FN |
6556 | case 0: gen_helper_neon_cls_s8(tmp, tmp); break; |
6557 | case 1: gen_helper_neon_cls_s16(tmp, tmp); break; | |
6558 | case 2: gen_helper_neon_cls_s32(tmp, tmp); break; | |
600b828c | 6559 | default: abort(); |
9ee6e8bb PB |
6560 | } |
6561 | break; | |
600b828c | 6562 | case NEON_2RM_VCLZ: |
9ee6e8bb | 6563 | switch (size) { |
dd8fbd78 FN |
6564 | case 0: gen_helper_neon_clz_u8(tmp, tmp); break; |
6565 | case 1: gen_helper_neon_clz_u16(tmp, tmp); break; | |
7539a012 | 6566 | case 2: tcg_gen_clzi_i32(tmp, tmp, 32); break; |
600b828c | 6567 | default: abort(); |
9ee6e8bb PB |
6568 | } |
6569 | break; | |
600b828c | 6570 | case NEON_2RM_VCNT: |
dd8fbd78 | 6571 | gen_helper_neon_cnt_u8(tmp, tmp); |
9ee6e8bb | 6572 | break; |
600b828c | 6573 | case NEON_2RM_VQABS: |
9ee6e8bb | 6574 | switch (size) { |
02da0b2d PM |
6575 | case 0: |
6576 | gen_helper_neon_qabs_s8(tmp, cpu_env, tmp); | |
6577 | break; | |
6578 | case 1: | |
6579 | gen_helper_neon_qabs_s16(tmp, cpu_env, tmp); | |
6580 | break; | |
6581 | case 2: | |
6582 | gen_helper_neon_qabs_s32(tmp, cpu_env, tmp); | |
6583 | break; | |
600b828c | 6584 | default: abort(); |
9ee6e8bb PB |
6585 | } |
6586 | break; | |
600b828c | 6587 | case NEON_2RM_VQNEG: |
9ee6e8bb | 6588 | switch (size) { |
02da0b2d PM |
6589 | case 0: |
6590 | gen_helper_neon_qneg_s8(tmp, cpu_env, tmp); | |
6591 | break; | |
6592 | case 1: | |
6593 | gen_helper_neon_qneg_s16(tmp, cpu_env, tmp); | |
6594 | break; | |
6595 | case 2: | |
6596 | gen_helper_neon_qneg_s32(tmp, cpu_env, tmp); | |
6597 | break; | |
600b828c | 6598 | default: abort(); |
9ee6e8bb PB |
6599 | } |
6600 | break; | |
600b828c | 6601 | case NEON_2RM_VCGT0: case NEON_2RM_VCLE0: |
dd8fbd78 | 6602 | tmp2 = tcg_const_i32(0); |
9ee6e8bb | 6603 | switch(size) { |
dd8fbd78 FN |
6604 | case 0: gen_helper_neon_cgt_s8(tmp, tmp, tmp2); break; |
6605 | case 1: gen_helper_neon_cgt_s16(tmp, tmp, tmp2); break; | |
6606 | case 2: gen_helper_neon_cgt_s32(tmp, tmp, tmp2); break; | |
600b828c | 6607 | default: abort(); |
9ee6e8bb | 6608 | } |
39d5492a | 6609 | tcg_temp_free_i32(tmp2); |
600b828c | 6610 | if (op == NEON_2RM_VCLE0) { |
dd8fbd78 | 6611 | tcg_gen_not_i32(tmp, tmp); |
600b828c | 6612 | } |
9ee6e8bb | 6613 | break; |
600b828c | 6614 | case NEON_2RM_VCGE0: case NEON_2RM_VCLT0: |
dd8fbd78 | 6615 | tmp2 = tcg_const_i32(0); |
9ee6e8bb | 6616 | switch(size) { |
dd8fbd78 FN |
6617 | case 0: gen_helper_neon_cge_s8(tmp, tmp, tmp2); break; |
6618 | case 1: gen_helper_neon_cge_s16(tmp, tmp, tmp2); break; | |
6619 | case 2: gen_helper_neon_cge_s32(tmp, tmp, tmp2); break; | |
600b828c | 6620 | default: abort(); |
9ee6e8bb | 6621 | } |
39d5492a | 6622 | tcg_temp_free_i32(tmp2); |
600b828c | 6623 | if (op == NEON_2RM_VCLT0) { |
dd8fbd78 | 6624 | tcg_gen_not_i32(tmp, tmp); |
600b828c | 6625 | } |
9ee6e8bb | 6626 | break; |
600b828c | 6627 | case NEON_2RM_VCEQ0: |
dd8fbd78 | 6628 | tmp2 = tcg_const_i32(0); |
9ee6e8bb | 6629 | switch(size) { |
dd8fbd78 FN |
6630 | case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break; |
6631 | case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break; | |
6632 | case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break; | |
600b828c | 6633 | default: abort(); |
9ee6e8bb | 6634 | } |
39d5492a | 6635 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 6636 | break; |
600b828c | 6637 | case NEON_2RM_VCGT0_F: |
aa47cfdd PM |
6638 | { |
6639 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
dd8fbd78 | 6640 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6641 | gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus); |
39d5492a | 6642 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6643 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6644 | break; |
aa47cfdd | 6645 | } |
600b828c | 6646 | case NEON_2RM_VCGE0_F: |
aa47cfdd PM |
6647 | { |
6648 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
dd8fbd78 | 6649 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6650 | gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus); |
39d5492a | 6651 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6652 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6653 | break; |
aa47cfdd | 6654 | } |
600b828c | 6655 | case NEON_2RM_VCEQ0_F: |
aa47cfdd PM |
6656 | { |
6657 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
dd8fbd78 | 6658 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6659 | gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus); |
39d5492a | 6660 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6661 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6662 | break; |
aa47cfdd | 6663 | } |
600b828c | 6664 | case NEON_2RM_VCLE0_F: |
aa47cfdd PM |
6665 | { |
6666 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
0e326109 | 6667 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6668 | gen_helper_neon_cge_f32(tmp, tmp2, tmp, fpstatus); |
39d5492a | 6669 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6670 | tcg_temp_free_ptr(fpstatus); |
0e326109 | 6671 | break; |
aa47cfdd | 6672 | } |
600b828c | 6673 | case NEON_2RM_VCLT0_F: |
aa47cfdd PM |
6674 | { |
6675 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
0e326109 | 6676 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6677 | gen_helper_neon_cgt_f32(tmp, tmp2, tmp, fpstatus); |
39d5492a | 6678 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6679 | tcg_temp_free_ptr(fpstatus); |
0e326109 | 6680 | break; |
aa47cfdd | 6681 | } |
600b828c | 6682 | case NEON_2RM_VABS_F: |
fd8a68cd | 6683 | gen_helper_vfp_abss(tmp, tmp); |
9ee6e8bb | 6684 | break; |
600b828c | 6685 | case NEON_2RM_VNEG_F: |
cedcc96f | 6686 | gen_helper_vfp_negs(tmp, tmp); |
9ee6e8bb | 6687 | break; |
600b828c | 6688 | case NEON_2RM_VSWP: |
dd8fbd78 FN |
6689 | tmp2 = neon_load_reg(rd, pass); |
6690 | neon_store_reg(rm, pass, tmp2); | |
9ee6e8bb | 6691 | break; |
600b828c | 6692 | case NEON_2RM_VTRN: |
dd8fbd78 | 6693 | tmp2 = neon_load_reg(rd, pass); |
9ee6e8bb | 6694 | switch (size) { |
dd8fbd78 FN |
6695 | case 0: gen_neon_trn_u8(tmp, tmp2); break; |
6696 | case 1: gen_neon_trn_u16(tmp, tmp2); break; | |
600b828c | 6697 | default: abort(); |
9ee6e8bb | 6698 | } |
dd8fbd78 | 6699 | neon_store_reg(rm, pass, tmp2); |
9ee6e8bb | 6700 | break; |
34f7b0a2 WN |
6701 | case NEON_2RM_VRINTN: |
6702 | case NEON_2RM_VRINTA: | |
6703 | case NEON_2RM_VRINTM: | |
6704 | case NEON_2RM_VRINTP: | |
6705 | case NEON_2RM_VRINTZ: | |
6706 | { | |
6707 | TCGv_i32 tcg_rmode; | |
6708 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6709 | int rmode; | |
6710 | ||
6711 | if (op == NEON_2RM_VRINTZ) { | |
6712 | rmode = FPROUNDING_ZERO; | |
6713 | } else { | |
6714 | rmode = fp_decode_rm[((op & 0x6) >> 1) ^ 1]; | |
6715 | } | |
6716 | ||
6717 | tcg_rmode = tcg_const_i32(arm_rmode_to_sf(rmode)); | |
6718 | gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, | |
6719 | cpu_env); | |
3b52ad1f | 6720 | gen_helper_rints(tmp, tmp, fpstatus); |
34f7b0a2 WN |
6721 | gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, |
6722 | cpu_env); | |
6723 | tcg_temp_free_ptr(fpstatus); | |
6724 | tcg_temp_free_i32(tcg_rmode); | |
6725 | break; | |
6726 | } | |
2ce70625 WN |
6727 | case NEON_2RM_VRINTX: |
6728 | { | |
6729 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
3b52ad1f | 6730 | gen_helper_rints_exact(tmp, tmp, fpstatus); |
2ce70625 WN |
6731 | tcg_temp_free_ptr(fpstatus); |
6732 | break; | |
6733 | } | |
901ad525 WN |
6734 | case NEON_2RM_VCVTAU: |
6735 | case NEON_2RM_VCVTAS: | |
6736 | case NEON_2RM_VCVTNU: | |
6737 | case NEON_2RM_VCVTNS: | |
6738 | case NEON_2RM_VCVTPU: | |
6739 | case NEON_2RM_VCVTPS: | |
6740 | case NEON_2RM_VCVTMU: | |
6741 | case NEON_2RM_VCVTMS: | |
6742 | { | |
6743 | bool is_signed = !extract32(insn, 7, 1); | |
6744 | TCGv_ptr fpst = get_fpstatus_ptr(1); | |
6745 | TCGv_i32 tcg_rmode, tcg_shift; | |
6746 | int rmode = fp_decode_rm[extract32(insn, 8, 2)]; | |
6747 | ||
6748 | tcg_shift = tcg_const_i32(0); | |
6749 | tcg_rmode = tcg_const_i32(arm_rmode_to_sf(rmode)); | |
6750 | gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, | |
6751 | cpu_env); | |
6752 | ||
6753 | if (is_signed) { | |
30bf0a01 | 6754 | gen_helper_vfp_tosls(tmp, tmp, |
901ad525 WN |
6755 | tcg_shift, fpst); |
6756 | } else { | |
30bf0a01 | 6757 | gen_helper_vfp_touls(tmp, tmp, |
901ad525 WN |
6758 | tcg_shift, fpst); |
6759 | } | |
6760 | ||
6761 | gen_helper_set_neon_rmode(tcg_rmode, tcg_rmode, | |
6762 | cpu_env); | |
6763 | tcg_temp_free_i32(tcg_rmode); | |
6764 | tcg_temp_free_i32(tcg_shift); | |
6765 | tcg_temp_free_ptr(fpst); | |
6766 | break; | |
6767 | } | |
600b828c | 6768 | case NEON_2RM_VRECPE: |
b6d4443a AB |
6769 | { |
6770 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6771 | gen_helper_recpe_u32(tmp, tmp, fpstatus); | |
6772 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6773 | break; |
b6d4443a | 6774 | } |
600b828c | 6775 | case NEON_2RM_VRSQRTE: |
c2fb418e AB |
6776 | { |
6777 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6778 | gen_helper_rsqrte_u32(tmp, tmp, fpstatus); | |
6779 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6780 | break; |
c2fb418e | 6781 | } |
600b828c | 6782 | case NEON_2RM_VRECPE_F: |
b6d4443a AB |
6783 | { |
6784 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
9a011fec | 6785 | gen_helper_recpe_f32(tmp, tmp, fpstatus); |
b6d4443a | 6786 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6787 | break; |
b6d4443a | 6788 | } |
600b828c | 6789 | case NEON_2RM_VRSQRTE_F: |
c2fb418e AB |
6790 | { |
6791 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
9a011fec | 6792 | gen_helper_rsqrte_f32(tmp, tmp, fpstatus); |
c2fb418e | 6793 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6794 | break; |
c2fb418e | 6795 | } |
600b828c | 6796 | case NEON_2RM_VCVT_FS: /* VCVT.F32.S32 */ |
60737ed5 PM |
6797 | { |
6798 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6799 | gen_helper_vfp_sitos(tmp, tmp, fpstatus); | |
6800 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6801 | break; |
60737ed5 | 6802 | } |
600b828c | 6803 | case NEON_2RM_VCVT_FU: /* VCVT.F32.U32 */ |
60737ed5 PM |
6804 | { |
6805 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6806 | gen_helper_vfp_uitos(tmp, tmp, fpstatus); | |
6807 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6808 | break; |
60737ed5 | 6809 | } |
600b828c | 6810 | case NEON_2RM_VCVT_SF: /* VCVT.S32.F32 */ |
60737ed5 PM |
6811 | { |
6812 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6813 | gen_helper_vfp_tosizs(tmp, tmp, fpstatus); | |
6814 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6815 | break; |
60737ed5 | 6816 | } |
600b828c | 6817 | case NEON_2RM_VCVT_UF: /* VCVT.U32.F32 */ |
60737ed5 PM |
6818 | { |
6819 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
6820 | gen_helper_vfp_touizs(tmp, tmp, fpstatus); | |
6821 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 6822 | break; |
60737ed5 | 6823 | } |
9ee6e8bb | 6824 | default: |
600b828c PM |
6825 | /* Reserved op values were caught by the |
6826 | * neon_2rm_sizes[] check earlier. | |
6827 | */ | |
6828 | abort(); | |
9ee6e8bb | 6829 | } |
60737ed5 | 6830 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
6831 | } |
6832 | break; | |
6833 | } | |
6834 | } else if ((insn & (1 << 10)) == 0) { | |
6835 | /* VTBL, VTBX. */ | |
56907d77 PM |
6836 | int n = ((insn >> 8) & 3) + 1; |
6837 | if ((rn + n) > 32) { | |
6838 | /* This is UNPREDICTABLE; we choose to UNDEF to avoid the | |
6839 | * helper function running off the end of the register file. | |
6840 | */ | |
6841 | return 1; | |
6842 | } | |
6843 | n <<= 3; | |
9ee6e8bb | 6844 | if (insn & (1 << 6)) { |
8f8e3aa4 | 6845 | tmp = neon_load_reg(rd, 0); |
9ee6e8bb | 6846 | } else { |
7d1b0095 | 6847 | tmp = tcg_temp_new_i32(); |
8f8e3aa4 | 6848 | tcg_gen_movi_i32(tmp, 0); |
9ee6e8bb | 6849 | } |
8f8e3aa4 | 6850 | tmp2 = neon_load_reg(rm, 0); |
e7c06c4e | 6851 | ptr1 = vfp_reg_ptr(true, rn); |
b75263d6 | 6852 | tmp5 = tcg_const_i32(n); |
e7c06c4e | 6853 | gen_helper_neon_tbl(tmp2, tmp2, tmp, ptr1, tmp5); |
7d1b0095 | 6854 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 6855 | if (insn & (1 << 6)) { |
8f8e3aa4 | 6856 | tmp = neon_load_reg(rd, 1); |
9ee6e8bb | 6857 | } else { |
7d1b0095 | 6858 | tmp = tcg_temp_new_i32(); |
8f8e3aa4 | 6859 | tcg_gen_movi_i32(tmp, 0); |
9ee6e8bb | 6860 | } |
8f8e3aa4 | 6861 | tmp3 = neon_load_reg(rm, 1); |
e7c06c4e | 6862 | gen_helper_neon_tbl(tmp3, tmp3, tmp, ptr1, tmp5); |
25aeb69b | 6863 | tcg_temp_free_i32(tmp5); |
e7c06c4e | 6864 | tcg_temp_free_ptr(ptr1); |
8f8e3aa4 | 6865 | neon_store_reg(rd, 0, tmp2); |
3018f259 | 6866 | neon_store_reg(rd, 1, tmp3); |
7d1b0095 | 6867 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
6868 | } else if ((insn & 0x380) == 0) { |
6869 | /* VDUP */ | |
32f91fb7 RH |
6870 | int element; |
6871 | TCGMemOp size; | |
6872 | ||
133da6aa JR |
6873 | if ((insn & (7 << 16)) == 0 || (q && (rd & 1))) { |
6874 | return 1; | |
6875 | } | |
9ee6e8bb | 6876 | if (insn & (1 << 16)) { |
32f91fb7 RH |
6877 | size = MO_8; |
6878 | element = (insn >> 17) & 7; | |
9ee6e8bb | 6879 | } else if (insn & (1 << 17)) { |
32f91fb7 RH |
6880 | size = MO_16; |
6881 | element = (insn >> 18) & 3; | |
6882 | } else { | |
6883 | size = MO_32; | |
6884 | element = (insn >> 19) & 1; | |
9ee6e8bb | 6885 | } |
32f91fb7 RH |
6886 | tcg_gen_gvec_dup_mem(size, neon_reg_offset(rd, 0), |
6887 | neon_element_offset(rm, element, size), | |
6888 | q ? 16 : 8, q ? 16 : 8); | |
9ee6e8bb PB |
6889 | } else { |
6890 | return 1; | |
6891 | } | |
6892 | } | |
6893 | } | |
6894 | return 0; | |
6895 | } | |
6896 | ||
8b7209fa RH |
6897 | /* Advanced SIMD three registers of the same length extension. |
6898 | * 31 25 23 22 20 16 12 11 10 9 8 3 0 | |
6899 | * +---------------+-----+---+-----+----+----+---+----+---+----+---------+----+ | |
6900 | * | 1 1 1 1 1 1 0 | op1 | D | op2 | Vn | Vd | 1 | o3 | 0 | o4 | N Q M U | Vm | | |
6901 | * +---------------+-----+---+-----+----+----+---+----+---+----+---------+----+ | |
6902 | */ | |
6903 | static int disas_neon_insn_3same_ext(DisasContext *s, uint32_t insn) | |
6904 | { | |
26c470a7 RH |
6905 | gen_helper_gvec_3 *fn_gvec = NULL; |
6906 | gen_helper_gvec_3_ptr *fn_gvec_ptr = NULL; | |
6907 | int rd, rn, rm, opr_sz; | |
6908 | int data = 0; | |
87732318 RH |
6909 | int off_rn, off_rm; |
6910 | bool is_long = false, q = extract32(insn, 6, 1); | |
6911 | bool ptr_is_env = false; | |
8b7209fa RH |
6912 | |
6913 | if ((insn & 0xfe200f10) == 0xfc200800) { | |
6914 | /* VCMLA -- 1111 110R R.1S .... .... 1000 ...0 .... */ | |
26c470a7 RH |
6915 | int size = extract32(insn, 20, 1); |
6916 | data = extract32(insn, 23, 2); /* rot */ | |
962fcbf2 | 6917 | if (!dc_isar_feature(aa32_vcma, s) |
5763190f | 6918 | || (!size && !dc_isar_feature(aa32_fp16_arith, s))) { |
8b7209fa RH |
6919 | return 1; |
6920 | } | |
6921 | fn_gvec_ptr = size ? gen_helper_gvec_fcmlas : gen_helper_gvec_fcmlah; | |
6922 | } else if ((insn & 0xfea00f10) == 0xfc800800) { | |
6923 | /* VCADD -- 1111 110R 1.0S .... .... 1000 ...0 .... */ | |
26c470a7 RH |
6924 | int size = extract32(insn, 20, 1); |
6925 | data = extract32(insn, 24, 1); /* rot */ | |
962fcbf2 | 6926 | if (!dc_isar_feature(aa32_vcma, s) |
5763190f | 6927 | || (!size && !dc_isar_feature(aa32_fp16_arith, s))) { |
8b7209fa RH |
6928 | return 1; |
6929 | } | |
6930 | fn_gvec_ptr = size ? gen_helper_gvec_fcadds : gen_helper_gvec_fcaddh; | |
26c470a7 RH |
6931 | } else if ((insn & 0xfeb00f00) == 0xfc200d00) { |
6932 | /* V[US]DOT -- 1111 1100 0.10 .... .... 1101 .Q.U .... */ | |
6933 | bool u = extract32(insn, 4, 1); | |
962fcbf2 | 6934 | if (!dc_isar_feature(aa32_dp, s)) { |
26c470a7 RH |
6935 | return 1; |
6936 | } | |
6937 | fn_gvec = u ? gen_helper_gvec_udot_b : gen_helper_gvec_sdot_b; | |
87732318 RH |
6938 | } else if ((insn & 0xff300f10) == 0xfc200810) { |
6939 | /* VFM[AS]L -- 1111 1100 S.10 .... .... 1000 .Q.1 .... */ | |
6940 | int is_s = extract32(insn, 23, 1); | |
6941 | if (!dc_isar_feature(aa32_fhm, s)) { | |
6942 | return 1; | |
6943 | } | |
6944 | is_long = true; | |
6945 | data = is_s; /* is_2 == 0 */ | |
6946 | fn_gvec_ptr = gen_helper_gvec_fmlal_a32; | |
6947 | ptr_is_env = true; | |
8b7209fa RH |
6948 | } else { |
6949 | return 1; | |
6950 | } | |
6951 | ||
87732318 RH |
6952 | VFP_DREG_D(rd, insn); |
6953 | if (rd & q) { | |
6954 | return 1; | |
6955 | } | |
6956 | if (q || !is_long) { | |
6957 | VFP_DREG_N(rn, insn); | |
6958 | VFP_DREG_M(rm, insn); | |
6959 | if ((rn | rm) & q & !is_long) { | |
6960 | return 1; | |
6961 | } | |
6962 | off_rn = vfp_reg_offset(1, rn); | |
6963 | off_rm = vfp_reg_offset(1, rm); | |
6964 | } else { | |
6965 | rn = VFP_SREG_N(insn); | |
6966 | rm = VFP_SREG_M(insn); | |
6967 | off_rn = vfp_reg_offset(0, rn); | |
6968 | off_rm = vfp_reg_offset(0, rm); | |
6969 | } | |
6970 | ||
8b7209fa RH |
6971 | if (s->fp_excp_el) { |
6972 | gen_exception_insn(s, 4, EXCP_UDEF, | |
4be42f40 | 6973 | syn_simd_access_trap(1, 0xe, false), s->fp_excp_el); |
8b7209fa RH |
6974 | return 0; |
6975 | } | |
6976 | if (!s->vfp_enabled) { | |
6977 | return 1; | |
6978 | } | |
6979 | ||
6980 | opr_sz = (1 + q) * 8; | |
26c470a7 | 6981 | if (fn_gvec_ptr) { |
87732318 RH |
6982 | TCGv_ptr ptr; |
6983 | if (ptr_is_env) { | |
6984 | ptr = cpu_env; | |
6985 | } else { | |
6986 | ptr = get_fpstatus_ptr(1); | |
6987 | } | |
6988 | tcg_gen_gvec_3_ptr(vfp_reg_offset(1, rd), off_rn, off_rm, ptr, | |
26c470a7 | 6989 | opr_sz, opr_sz, data, fn_gvec_ptr); |
87732318 RH |
6990 | if (!ptr_is_env) { |
6991 | tcg_temp_free_ptr(ptr); | |
6992 | } | |
26c470a7 | 6993 | } else { |
87732318 | 6994 | tcg_gen_gvec_3_ool(vfp_reg_offset(1, rd), off_rn, off_rm, |
26c470a7 RH |
6995 | opr_sz, opr_sz, data, fn_gvec); |
6996 | } | |
8b7209fa RH |
6997 | return 0; |
6998 | } | |
6999 | ||
638808ff RH |
7000 | /* Advanced SIMD two registers and a scalar extension. |
7001 | * 31 24 23 22 20 16 12 11 10 9 8 3 0 | |
7002 | * +-----------------+----+---+----+----+----+---+----+---+----+---------+----+ | |
7003 | * | 1 1 1 1 1 1 1 0 | o1 | D | o2 | Vn | Vd | 1 | o3 | 0 | o4 | N Q M U | Vm | | |
7004 | * +-----------------+----+---+----+----+----+---+----+---+----+---------+----+ | |
7005 | * | |
7006 | */ | |
7007 | ||
7008 | static int disas_neon_insn_2reg_scalar_ext(DisasContext *s, uint32_t insn) | |
7009 | { | |
26c470a7 RH |
7010 | gen_helper_gvec_3 *fn_gvec = NULL; |
7011 | gen_helper_gvec_3_ptr *fn_gvec_ptr = NULL; | |
2cc99919 | 7012 | int rd, rn, rm, opr_sz, data; |
87732318 RH |
7013 | int off_rn, off_rm; |
7014 | bool is_long = false, q = extract32(insn, 6, 1); | |
7015 | bool ptr_is_env = false; | |
638808ff RH |
7016 | |
7017 | if ((insn & 0xff000f10) == 0xfe000800) { | |
7018 | /* VCMLA (indexed) -- 1111 1110 S.RR .... .... 1000 ...0 .... */ | |
2cc99919 RH |
7019 | int rot = extract32(insn, 20, 2); |
7020 | int size = extract32(insn, 23, 1); | |
7021 | int index; | |
7022 | ||
962fcbf2 | 7023 | if (!dc_isar_feature(aa32_vcma, s)) { |
638808ff RH |
7024 | return 1; |
7025 | } | |
2cc99919 | 7026 | if (size == 0) { |
5763190f | 7027 | if (!dc_isar_feature(aa32_fp16_arith, s)) { |
2cc99919 RH |
7028 | return 1; |
7029 | } | |
7030 | /* For fp16, rm is just Vm, and index is M. */ | |
7031 | rm = extract32(insn, 0, 4); | |
7032 | index = extract32(insn, 5, 1); | |
7033 | } else { | |
7034 | /* For fp32, rm is the usual M:Vm, and index is 0. */ | |
7035 | VFP_DREG_M(rm, insn); | |
7036 | index = 0; | |
7037 | } | |
7038 | data = (index << 2) | rot; | |
7039 | fn_gvec_ptr = (size ? gen_helper_gvec_fcmlas_idx | |
7040 | : gen_helper_gvec_fcmlah_idx); | |
26c470a7 RH |
7041 | } else if ((insn & 0xffb00f00) == 0xfe200d00) { |
7042 | /* V[US]DOT -- 1111 1110 0.10 .... .... 1101 .Q.U .... */ | |
7043 | int u = extract32(insn, 4, 1); | |
87732318 | 7044 | |
962fcbf2 | 7045 | if (!dc_isar_feature(aa32_dp, s)) { |
26c470a7 RH |
7046 | return 1; |
7047 | } | |
7048 | fn_gvec = u ? gen_helper_gvec_udot_idx_b : gen_helper_gvec_sdot_idx_b; | |
7049 | /* rm is just Vm, and index is M. */ | |
7050 | data = extract32(insn, 5, 1); /* index */ | |
7051 | rm = extract32(insn, 0, 4); | |
87732318 RH |
7052 | } else if ((insn & 0xffa00f10) == 0xfe000810) { |
7053 | /* VFM[AS]L -- 1111 1110 0.0S .... .... 1000 .Q.1 .... */ | |
7054 | int is_s = extract32(insn, 20, 1); | |
7055 | int vm20 = extract32(insn, 0, 3); | |
7056 | int vm3 = extract32(insn, 3, 1); | |
7057 | int m = extract32(insn, 5, 1); | |
7058 | int index; | |
7059 | ||
7060 | if (!dc_isar_feature(aa32_fhm, s)) { | |
7061 | return 1; | |
7062 | } | |
7063 | if (q) { | |
7064 | rm = vm20; | |
7065 | index = m * 2 + vm3; | |
7066 | } else { | |
7067 | rm = vm20 * 2 + m; | |
7068 | index = vm3; | |
7069 | } | |
7070 | is_long = true; | |
7071 | data = (index << 2) | is_s; /* is_2 == 0 */ | |
7072 | fn_gvec_ptr = gen_helper_gvec_fmlal_idx_a32; | |
7073 | ptr_is_env = true; | |
638808ff RH |
7074 | } else { |
7075 | return 1; | |
7076 | } | |
7077 | ||
87732318 RH |
7078 | VFP_DREG_D(rd, insn); |
7079 | if (rd & q) { | |
7080 | return 1; | |
7081 | } | |
7082 | if (q || !is_long) { | |
7083 | VFP_DREG_N(rn, insn); | |
7084 | if (rn & q & !is_long) { | |
7085 | return 1; | |
7086 | } | |
7087 | off_rn = vfp_reg_offset(1, rn); | |
7088 | off_rm = vfp_reg_offset(1, rm); | |
7089 | } else { | |
7090 | rn = VFP_SREG_N(insn); | |
7091 | off_rn = vfp_reg_offset(0, rn); | |
7092 | off_rm = vfp_reg_offset(0, rm); | |
7093 | } | |
638808ff RH |
7094 | if (s->fp_excp_el) { |
7095 | gen_exception_insn(s, 4, EXCP_UDEF, | |
4be42f40 | 7096 | syn_simd_access_trap(1, 0xe, false), s->fp_excp_el); |
638808ff RH |
7097 | return 0; |
7098 | } | |
7099 | if (!s->vfp_enabled) { | |
7100 | return 1; | |
7101 | } | |
7102 | ||
7103 | opr_sz = (1 + q) * 8; | |
26c470a7 | 7104 | if (fn_gvec_ptr) { |
87732318 RH |
7105 | TCGv_ptr ptr; |
7106 | if (ptr_is_env) { | |
7107 | ptr = cpu_env; | |
7108 | } else { | |
7109 | ptr = get_fpstatus_ptr(1); | |
7110 | } | |
7111 | tcg_gen_gvec_3_ptr(vfp_reg_offset(1, rd), off_rn, off_rm, ptr, | |
26c470a7 | 7112 | opr_sz, opr_sz, data, fn_gvec_ptr); |
87732318 RH |
7113 | if (!ptr_is_env) { |
7114 | tcg_temp_free_ptr(ptr); | |
7115 | } | |
26c470a7 | 7116 | } else { |
87732318 | 7117 | tcg_gen_gvec_3_ool(vfp_reg_offset(1, rd), off_rn, off_rm, |
26c470a7 RH |
7118 | opr_sz, opr_sz, data, fn_gvec); |
7119 | } | |
638808ff RH |
7120 | return 0; |
7121 | } | |
7122 | ||
7dcc1f89 | 7123 | static int disas_coproc_insn(DisasContext *s, uint32_t insn) |
9ee6e8bb | 7124 | { |
4b6a83fb PM |
7125 | int cpnum, is64, crn, crm, opc1, opc2, isread, rt, rt2; |
7126 | const ARMCPRegInfo *ri; | |
9ee6e8bb PB |
7127 | |
7128 | cpnum = (insn >> 8) & 0xf; | |
c0f4af17 PM |
7129 | |
7130 | /* First check for coprocessor space used for XScale/iwMMXt insns */ | |
d614a513 | 7131 | if (arm_dc_feature(s, ARM_FEATURE_XSCALE) && (cpnum < 2)) { |
c0f4af17 PM |
7132 | if (extract32(s->c15_cpar, cpnum, 1) == 0) { |
7133 | return 1; | |
7134 | } | |
d614a513 | 7135 | if (arm_dc_feature(s, ARM_FEATURE_IWMMXT)) { |
7dcc1f89 | 7136 | return disas_iwmmxt_insn(s, insn); |
d614a513 | 7137 | } else if (arm_dc_feature(s, ARM_FEATURE_XSCALE)) { |
7dcc1f89 | 7138 | return disas_dsp_insn(s, insn); |
c0f4af17 PM |
7139 | } |
7140 | return 1; | |
4b6a83fb PM |
7141 | } |
7142 | ||
7143 | /* Otherwise treat as a generic register access */ | |
7144 | is64 = (insn & (1 << 25)) == 0; | |
7145 | if (!is64 && ((insn & (1 << 4)) == 0)) { | |
7146 | /* cdp */ | |
7147 | return 1; | |
7148 | } | |
7149 | ||
7150 | crm = insn & 0xf; | |
7151 | if (is64) { | |
7152 | crn = 0; | |
7153 | opc1 = (insn >> 4) & 0xf; | |
7154 | opc2 = 0; | |
7155 | rt2 = (insn >> 16) & 0xf; | |
7156 | } else { | |
7157 | crn = (insn >> 16) & 0xf; | |
7158 | opc1 = (insn >> 21) & 7; | |
7159 | opc2 = (insn >> 5) & 7; | |
7160 | rt2 = 0; | |
7161 | } | |
7162 | isread = (insn >> 20) & 1; | |
7163 | rt = (insn >> 12) & 0xf; | |
7164 | ||
60322b39 | 7165 | ri = get_arm_cp_reginfo(s->cp_regs, |
51a79b03 | 7166 | ENCODE_CP_REG(cpnum, is64, s->ns, crn, crm, opc1, opc2)); |
4b6a83fb PM |
7167 | if (ri) { |
7168 | /* Check access permissions */ | |
dcbff19b | 7169 | if (!cp_access_ok(s->current_el, ri, isread)) { |
4b6a83fb PM |
7170 | return 1; |
7171 | } | |
7172 | ||
c0f4af17 | 7173 | if (ri->accessfn || |
d614a513 | 7174 | (arm_dc_feature(s, ARM_FEATURE_XSCALE) && cpnum < 14)) { |
f59df3f2 PM |
7175 | /* Emit code to perform further access permissions checks at |
7176 | * runtime; this may result in an exception. | |
c0f4af17 PM |
7177 | * Note that on XScale all cp0..c13 registers do an access check |
7178 | * call in order to handle c15_cpar. | |
f59df3f2 PM |
7179 | */ |
7180 | TCGv_ptr tmpptr; | |
3f208fd7 | 7181 | TCGv_i32 tcg_syn, tcg_isread; |
8bcbf37c PM |
7182 | uint32_t syndrome; |
7183 | ||
7184 | /* Note that since we are an implementation which takes an | |
7185 | * exception on a trapped conditional instruction only if the | |
7186 | * instruction passes its condition code check, we can take | |
7187 | * advantage of the clause in the ARM ARM that allows us to set | |
7188 | * the COND field in the instruction to 0xE in all cases. | |
7189 | * We could fish the actual condition out of the insn (ARM) | |
7190 | * or the condexec bits (Thumb) but it isn't necessary. | |
7191 | */ | |
7192 | switch (cpnum) { | |
7193 | case 14: | |
7194 | if (is64) { | |
7195 | syndrome = syn_cp14_rrt_trap(1, 0xe, opc1, crm, rt, rt2, | |
4df32259 | 7196 | isread, false); |
8bcbf37c PM |
7197 | } else { |
7198 | syndrome = syn_cp14_rt_trap(1, 0xe, opc1, opc2, crn, crm, | |
4df32259 | 7199 | rt, isread, false); |
8bcbf37c PM |
7200 | } |
7201 | break; | |
7202 | case 15: | |
7203 | if (is64) { | |
7204 | syndrome = syn_cp15_rrt_trap(1, 0xe, opc1, crm, rt, rt2, | |
4df32259 | 7205 | isread, false); |
8bcbf37c PM |
7206 | } else { |
7207 | syndrome = syn_cp15_rt_trap(1, 0xe, opc1, opc2, crn, crm, | |
4df32259 | 7208 | rt, isread, false); |
8bcbf37c PM |
7209 | } |
7210 | break; | |
7211 | default: | |
7212 | /* ARMv8 defines that only coprocessors 14 and 15 exist, | |
7213 | * so this can only happen if this is an ARMv7 or earlier CPU, | |
7214 | * in which case the syndrome information won't actually be | |
7215 | * guest visible. | |
7216 | */ | |
d614a513 | 7217 | assert(!arm_dc_feature(s, ARM_FEATURE_V8)); |
8bcbf37c PM |
7218 | syndrome = syn_uncategorized(); |
7219 | break; | |
7220 | } | |
7221 | ||
43bfa4a1 | 7222 | gen_set_condexec(s); |
3977ee5d | 7223 | gen_set_pc_im(s, s->pc - 4); |
f59df3f2 | 7224 | tmpptr = tcg_const_ptr(ri); |
8bcbf37c | 7225 | tcg_syn = tcg_const_i32(syndrome); |
3f208fd7 PM |
7226 | tcg_isread = tcg_const_i32(isread); |
7227 | gen_helper_access_check_cp_reg(cpu_env, tmpptr, tcg_syn, | |
7228 | tcg_isread); | |
f59df3f2 | 7229 | tcg_temp_free_ptr(tmpptr); |
8bcbf37c | 7230 | tcg_temp_free_i32(tcg_syn); |
3f208fd7 | 7231 | tcg_temp_free_i32(tcg_isread); |
f59df3f2 PM |
7232 | } |
7233 | ||
4b6a83fb PM |
7234 | /* Handle special cases first */ |
7235 | switch (ri->type & ~(ARM_CP_FLAG_MASK & ~ARM_CP_SPECIAL)) { | |
7236 | case ARM_CP_NOP: | |
7237 | return 0; | |
7238 | case ARM_CP_WFI: | |
7239 | if (isread) { | |
7240 | return 1; | |
7241 | } | |
eaed129d | 7242 | gen_set_pc_im(s, s->pc); |
dcba3a8d | 7243 | s->base.is_jmp = DISAS_WFI; |
2bee5105 | 7244 | return 0; |
4b6a83fb PM |
7245 | default: |
7246 | break; | |
7247 | } | |
7248 | ||
c5a49c63 | 7249 | if ((tb_cflags(s->base.tb) & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { |
2452731c PM |
7250 | gen_io_start(); |
7251 | } | |
7252 | ||
4b6a83fb PM |
7253 | if (isread) { |
7254 | /* Read */ | |
7255 | if (is64) { | |
7256 | TCGv_i64 tmp64; | |
7257 | TCGv_i32 tmp; | |
7258 | if (ri->type & ARM_CP_CONST) { | |
7259 | tmp64 = tcg_const_i64(ri->resetvalue); | |
7260 | } else if (ri->readfn) { | |
7261 | TCGv_ptr tmpptr; | |
4b6a83fb PM |
7262 | tmp64 = tcg_temp_new_i64(); |
7263 | tmpptr = tcg_const_ptr(ri); | |
7264 | gen_helper_get_cp_reg64(tmp64, cpu_env, tmpptr); | |
7265 | tcg_temp_free_ptr(tmpptr); | |
7266 | } else { | |
7267 | tmp64 = tcg_temp_new_i64(); | |
7268 | tcg_gen_ld_i64(tmp64, cpu_env, ri->fieldoffset); | |
7269 | } | |
7270 | tmp = tcg_temp_new_i32(); | |
ecc7b3aa | 7271 | tcg_gen_extrl_i64_i32(tmp, tmp64); |
4b6a83fb PM |
7272 | store_reg(s, rt, tmp); |
7273 | tcg_gen_shri_i64(tmp64, tmp64, 32); | |
ed336850 | 7274 | tmp = tcg_temp_new_i32(); |
ecc7b3aa | 7275 | tcg_gen_extrl_i64_i32(tmp, tmp64); |
ed336850 | 7276 | tcg_temp_free_i64(tmp64); |
4b6a83fb PM |
7277 | store_reg(s, rt2, tmp); |
7278 | } else { | |
39d5492a | 7279 | TCGv_i32 tmp; |
4b6a83fb PM |
7280 | if (ri->type & ARM_CP_CONST) { |
7281 | tmp = tcg_const_i32(ri->resetvalue); | |
7282 | } else if (ri->readfn) { | |
7283 | TCGv_ptr tmpptr; | |
4b6a83fb PM |
7284 | tmp = tcg_temp_new_i32(); |
7285 | tmpptr = tcg_const_ptr(ri); | |
7286 | gen_helper_get_cp_reg(tmp, cpu_env, tmpptr); | |
7287 | tcg_temp_free_ptr(tmpptr); | |
7288 | } else { | |
7289 | tmp = load_cpu_offset(ri->fieldoffset); | |
7290 | } | |
7291 | if (rt == 15) { | |
7292 | /* Destination register of r15 for 32 bit loads sets | |
7293 | * the condition codes from the high 4 bits of the value | |
7294 | */ | |
7295 | gen_set_nzcv(tmp); | |
7296 | tcg_temp_free_i32(tmp); | |
7297 | } else { | |
7298 | store_reg(s, rt, tmp); | |
7299 | } | |
7300 | } | |
7301 | } else { | |
7302 | /* Write */ | |
7303 | if (ri->type & ARM_CP_CONST) { | |
7304 | /* If not forbidden by access permissions, treat as WI */ | |
7305 | return 0; | |
7306 | } | |
7307 | ||
7308 | if (is64) { | |
39d5492a | 7309 | TCGv_i32 tmplo, tmphi; |
4b6a83fb PM |
7310 | TCGv_i64 tmp64 = tcg_temp_new_i64(); |
7311 | tmplo = load_reg(s, rt); | |
7312 | tmphi = load_reg(s, rt2); | |
7313 | tcg_gen_concat_i32_i64(tmp64, tmplo, tmphi); | |
7314 | tcg_temp_free_i32(tmplo); | |
7315 | tcg_temp_free_i32(tmphi); | |
7316 | if (ri->writefn) { | |
7317 | TCGv_ptr tmpptr = tcg_const_ptr(ri); | |
4b6a83fb PM |
7318 | gen_helper_set_cp_reg64(cpu_env, tmpptr, tmp64); |
7319 | tcg_temp_free_ptr(tmpptr); | |
7320 | } else { | |
7321 | tcg_gen_st_i64(tmp64, cpu_env, ri->fieldoffset); | |
7322 | } | |
7323 | tcg_temp_free_i64(tmp64); | |
7324 | } else { | |
7325 | if (ri->writefn) { | |
39d5492a | 7326 | TCGv_i32 tmp; |
4b6a83fb | 7327 | TCGv_ptr tmpptr; |
4b6a83fb PM |
7328 | tmp = load_reg(s, rt); |
7329 | tmpptr = tcg_const_ptr(ri); | |
7330 | gen_helper_set_cp_reg(cpu_env, tmpptr, tmp); | |
7331 | tcg_temp_free_ptr(tmpptr); | |
7332 | tcg_temp_free_i32(tmp); | |
7333 | } else { | |
39d5492a | 7334 | TCGv_i32 tmp = load_reg(s, rt); |
4b6a83fb PM |
7335 | store_cpu_offset(tmp, ri->fieldoffset); |
7336 | } | |
7337 | } | |
2452731c PM |
7338 | } |
7339 | ||
c5a49c63 | 7340 | if ((tb_cflags(s->base.tb) & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { |
2452731c PM |
7341 | /* I/O operations must end the TB here (whether read or write) */ |
7342 | gen_io_end(); | |
7343 | gen_lookup_tb(s); | |
7344 | } else if (!isread && !(ri->type & ARM_CP_SUPPRESS_TB_END)) { | |
4b6a83fb PM |
7345 | /* We default to ending the TB on a coprocessor register write, |
7346 | * but allow this to be suppressed by the register definition | |
7347 | * (usually only necessary to work around guest bugs). | |
7348 | */ | |
2452731c | 7349 | gen_lookup_tb(s); |
4b6a83fb | 7350 | } |
2452731c | 7351 | |
4b6a83fb PM |
7352 | return 0; |
7353 | } | |
7354 | ||
626187d8 PM |
7355 | /* Unknown register; this might be a guest error or a QEMU |
7356 | * unimplemented feature. | |
7357 | */ | |
7358 | if (is64) { | |
7359 | qemu_log_mask(LOG_UNIMP, "%s access to unsupported AArch32 " | |
51a79b03 PM |
7360 | "64 bit system register cp:%d opc1: %d crm:%d " |
7361 | "(%s)\n", | |
7362 | isread ? "read" : "write", cpnum, opc1, crm, | |
7363 | s->ns ? "non-secure" : "secure"); | |
626187d8 PM |
7364 | } else { |
7365 | qemu_log_mask(LOG_UNIMP, "%s access to unsupported AArch32 " | |
51a79b03 PM |
7366 | "system register cp:%d opc1:%d crn:%d crm:%d opc2:%d " |
7367 | "(%s)\n", | |
7368 | isread ? "read" : "write", cpnum, opc1, crn, crm, opc2, | |
7369 | s->ns ? "non-secure" : "secure"); | |
626187d8 PM |
7370 | } |
7371 | ||
4a9a539f | 7372 | return 1; |
9ee6e8bb PB |
7373 | } |
7374 | ||
5e3f878a PB |
7375 | |
7376 | /* Store a 64-bit value to a register pair. Clobbers val. */ | |
a7812ae4 | 7377 | static void gen_storeq_reg(DisasContext *s, int rlow, int rhigh, TCGv_i64 val) |
5e3f878a | 7378 | { |
39d5492a | 7379 | TCGv_i32 tmp; |
7d1b0095 | 7380 | tmp = tcg_temp_new_i32(); |
ecc7b3aa | 7381 | tcg_gen_extrl_i64_i32(tmp, val); |
5e3f878a | 7382 | store_reg(s, rlow, tmp); |
7d1b0095 | 7383 | tmp = tcg_temp_new_i32(); |
5e3f878a | 7384 | tcg_gen_shri_i64(val, val, 32); |
ecc7b3aa | 7385 | tcg_gen_extrl_i64_i32(tmp, val); |
5e3f878a PB |
7386 | store_reg(s, rhigh, tmp); |
7387 | } | |
7388 | ||
7389 | /* load a 32-bit value from a register and perform a 64-bit accumulate. */ | |
a7812ae4 | 7390 | static void gen_addq_lo(DisasContext *s, TCGv_i64 val, int rlow) |
5e3f878a | 7391 | { |
a7812ae4 | 7392 | TCGv_i64 tmp; |
39d5492a | 7393 | TCGv_i32 tmp2; |
5e3f878a | 7394 | |
36aa55dc | 7395 | /* Load value and extend to 64 bits. */ |
a7812ae4 | 7396 | tmp = tcg_temp_new_i64(); |
5e3f878a PB |
7397 | tmp2 = load_reg(s, rlow); |
7398 | tcg_gen_extu_i32_i64(tmp, tmp2); | |
7d1b0095 | 7399 | tcg_temp_free_i32(tmp2); |
5e3f878a | 7400 | tcg_gen_add_i64(val, val, tmp); |
b75263d6 | 7401 | tcg_temp_free_i64(tmp); |
5e3f878a PB |
7402 | } |
7403 | ||
7404 | /* load and add a 64-bit value from a register pair. */ | |
a7812ae4 | 7405 | static void gen_addq(DisasContext *s, TCGv_i64 val, int rlow, int rhigh) |
5e3f878a | 7406 | { |
a7812ae4 | 7407 | TCGv_i64 tmp; |
39d5492a PM |
7408 | TCGv_i32 tmpl; |
7409 | TCGv_i32 tmph; | |
5e3f878a PB |
7410 | |
7411 | /* Load 64-bit value rd:rn. */ | |
36aa55dc PB |
7412 | tmpl = load_reg(s, rlow); |
7413 | tmph = load_reg(s, rhigh); | |
a7812ae4 | 7414 | tmp = tcg_temp_new_i64(); |
36aa55dc | 7415 | tcg_gen_concat_i32_i64(tmp, tmpl, tmph); |
7d1b0095 PM |
7416 | tcg_temp_free_i32(tmpl); |
7417 | tcg_temp_free_i32(tmph); | |
5e3f878a | 7418 | tcg_gen_add_i64(val, val, tmp); |
b75263d6 | 7419 | tcg_temp_free_i64(tmp); |
5e3f878a PB |
7420 | } |
7421 | ||
c9f10124 | 7422 | /* Set N and Z flags from hi|lo. */ |
39d5492a | 7423 | static void gen_logicq_cc(TCGv_i32 lo, TCGv_i32 hi) |
5e3f878a | 7424 | { |
c9f10124 RH |
7425 | tcg_gen_mov_i32(cpu_NF, hi); |
7426 | tcg_gen_or_i32(cpu_ZF, lo, hi); | |
5e3f878a PB |
7427 | } |
7428 | ||
426f5abc PB |
7429 | /* Load/Store exclusive instructions are implemented by remembering |
7430 | the value/address loaded, and seeing if these are the same | |
354161b3 | 7431 | when the store is performed. This should be sufficient to implement |
426f5abc | 7432 | the architecturally mandated semantics, and avoids having to monitor |
354161b3 EC |
7433 | regular stores. The compare vs the remembered value is done during |
7434 | the cmpxchg operation, but we must compare the addresses manually. */ | |
426f5abc | 7435 | static void gen_load_exclusive(DisasContext *s, int rt, int rt2, |
39d5492a | 7436 | TCGv_i32 addr, int size) |
426f5abc | 7437 | { |
94ee24e7 | 7438 | TCGv_i32 tmp = tcg_temp_new_i32(); |
354161b3 | 7439 | TCGMemOp opc = size | MO_ALIGN | s->be_data; |
426f5abc | 7440 | |
50225ad0 PM |
7441 | s->is_ldex = true; |
7442 | ||
426f5abc | 7443 | if (size == 3) { |
39d5492a | 7444 | TCGv_i32 tmp2 = tcg_temp_new_i32(); |
354161b3 | 7445 | TCGv_i64 t64 = tcg_temp_new_i64(); |
03d05e2d | 7446 | |
3448d47b PM |
7447 | /* For AArch32, architecturally the 32-bit word at the lowest |
7448 | * address is always Rt and the one at addr+4 is Rt2, even if | |
7449 | * the CPU is big-endian. That means we don't want to do a | |
7450 | * gen_aa32_ld_i64(), which invokes gen_aa32_frob64() as if | |
7451 | * for an architecturally 64-bit access, but instead do a | |
7452 | * 64-bit access using MO_BE if appropriate and then split | |
7453 | * the two halves. | |
7454 | * This only makes a difference for BE32 user-mode, where | |
7455 | * frob64() must not flip the two halves of the 64-bit data | |
7456 | * but this code must treat BE32 user-mode like BE32 system. | |
7457 | */ | |
7458 | TCGv taddr = gen_aa32_addr(s, addr, opc); | |
7459 | ||
7460 | tcg_gen_qemu_ld_i64(t64, taddr, get_mem_index(s), opc); | |
7461 | tcg_temp_free(taddr); | |
354161b3 | 7462 | tcg_gen_mov_i64(cpu_exclusive_val, t64); |
3448d47b PM |
7463 | if (s->be_data == MO_BE) { |
7464 | tcg_gen_extr_i64_i32(tmp2, tmp, t64); | |
7465 | } else { | |
7466 | tcg_gen_extr_i64_i32(tmp, tmp2, t64); | |
7467 | } | |
354161b3 EC |
7468 | tcg_temp_free_i64(t64); |
7469 | ||
7470 | store_reg(s, rt2, tmp2); | |
03d05e2d | 7471 | } else { |
354161b3 | 7472 | gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), opc); |
03d05e2d | 7473 | tcg_gen_extu_i32_i64(cpu_exclusive_val, tmp); |
426f5abc | 7474 | } |
03d05e2d PM |
7475 | |
7476 | store_reg(s, rt, tmp); | |
7477 | tcg_gen_extu_i32_i64(cpu_exclusive_addr, addr); | |
426f5abc PB |
7478 | } |
7479 | ||
7480 | static void gen_clrex(DisasContext *s) | |
7481 | { | |
03d05e2d | 7482 | tcg_gen_movi_i64(cpu_exclusive_addr, -1); |
426f5abc PB |
7483 | } |
7484 | ||
426f5abc | 7485 | static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, |
39d5492a | 7486 | TCGv_i32 addr, int size) |
426f5abc | 7487 | { |
354161b3 EC |
7488 | TCGv_i32 t0, t1, t2; |
7489 | TCGv_i64 extaddr; | |
7490 | TCGv taddr; | |
42a268c2 RH |
7491 | TCGLabel *done_label; |
7492 | TCGLabel *fail_label; | |
354161b3 | 7493 | TCGMemOp opc = size | MO_ALIGN | s->be_data; |
426f5abc PB |
7494 | |
7495 | /* if (env->exclusive_addr == addr && env->exclusive_val == [addr]) { | |
7496 | [addr] = {Rt}; | |
7497 | {Rd} = 0; | |
7498 | } else { | |
7499 | {Rd} = 1; | |
7500 | } */ | |
7501 | fail_label = gen_new_label(); | |
7502 | done_label = gen_new_label(); | |
03d05e2d PM |
7503 | extaddr = tcg_temp_new_i64(); |
7504 | tcg_gen_extu_i32_i64(extaddr, addr); | |
7505 | tcg_gen_brcond_i64(TCG_COND_NE, extaddr, cpu_exclusive_addr, fail_label); | |
7506 | tcg_temp_free_i64(extaddr); | |
7507 | ||
354161b3 EC |
7508 | taddr = gen_aa32_addr(s, addr, opc); |
7509 | t0 = tcg_temp_new_i32(); | |
7510 | t1 = load_reg(s, rt); | |
426f5abc | 7511 | if (size == 3) { |
354161b3 EC |
7512 | TCGv_i64 o64 = tcg_temp_new_i64(); |
7513 | TCGv_i64 n64 = tcg_temp_new_i64(); | |
03d05e2d | 7514 | |
354161b3 | 7515 | t2 = load_reg(s, rt2); |
3448d47b PM |
7516 | /* For AArch32, architecturally the 32-bit word at the lowest |
7517 | * address is always Rt and the one at addr+4 is Rt2, even if | |
7518 | * the CPU is big-endian. Since we're going to treat this as a | |
7519 | * single 64-bit BE store, we need to put the two halves in the | |
7520 | * opposite order for BE to LE, so that they end up in the right | |
7521 | * places. | |
7522 | * We don't want gen_aa32_frob64() because that does the wrong | |
7523 | * thing for BE32 usermode. | |
7524 | */ | |
7525 | if (s->be_data == MO_BE) { | |
7526 | tcg_gen_concat_i32_i64(n64, t2, t1); | |
7527 | } else { | |
7528 | tcg_gen_concat_i32_i64(n64, t1, t2); | |
7529 | } | |
354161b3 | 7530 | tcg_temp_free_i32(t2); |
03d05e2d | 7531 | |
354161b3 EC |
7532 | tcg_gen_atomic_cmpxchg_i64(o64, taddr, cpu_exclusive_val, n64, |
7533 | get_mem_index(s), opc); | |
7534 | tcg_temp_free_i64(n64); | |
7535 | ||
354161b3 EC |
7536 | tcg_gen_setcond_i64(TCG_COND_NE, o64, o64, cpu_exclusive_val); |
7537 | tcg_gen_extrl_i64_i32(t0, o64); | |
7538 | ||
7539 | tcg_temp_free_i64(o64); | |
7540 | } else { | |
7541 | t2 = tcg_temp_new_i32(); | |
7542 | tcg_gen_extrl_i64_i32(t2, cpu_exclusive_val); | |
7543 | tcg_gen_atomic_cmpxchg_i32(t0, taddr, t2, t1, get_mem_index(s), opc); | |
7544 | tcg_gen_setcond_i32(TCG_COND_NE, t0, t0, t2); | |
7545 | tcg_temp_free_i32(t2); | |
426f5abc | 7546 | } |
354161b3 EC |
7547 | tcg_temp_free_i32(t1); |
7548 | tcg_temp_free(taddr); | |
7549 | tcg_gen_mov_i32(cpu_R[rd], t0); | |
7550 | tcg_temp_free_i32(t0); | |
426f5abc | 7551 | tcg_gen_br(done_label); |
354161b3 | 7552 | |
426f5abc PB |
7553 | gen_set_label(fail_label); |
7554 | tcg_gen_movi_i32(cpu_R[rd], 1); | |
7555 | gen_set_label(done_label); | |
03d05e2d | 7556 | tcg_gen_movi_i64(cpu_exclusive_addr, -1); |
426f5abc | 7557 | } |
426f5abc | 7558 | |
81465888 PM |
7559 | /* gen_srs: |
7560 | * @env: CPUARMState | |
7561 | * @s: DisasContext | |
7562 | * @mode: mode field from insn (which stack to store to) | |
7563 | * @amode: addressing mode (DA/IA/DB/IB), encoded as per P,U bits in ARM insn | |
7564 | * @writeback: true if writeback bit set | |
7565 | * | |
7566 | * Generate code for the SRS (Store Return State) insn. | |
7567 | */ | |
7568 | static void gen_srs(DisasContext *s, | |
7569 | uint32_t mode, uint32_t amode, bool writeback) | |
7570 | { | |
7571 | int32_t offset; | |
cbc0326b PM |
7572 | TCGv_i32 addr, tmp; |
7573 | bool undef = false; | |
7574 | ||
7575 | /* SRS is: | |
7576 | * - trapped to EL3 if EL3 is AArch64 and we are at Secure EL1 | |
ba63cf47 | 7577 | * and specified mode is monitor mode |
cbc0326b PM |
7578 | * - UNDEFINED in Hyp mode |
7579 | * - UNPREDICTABLE in User or System mode | |
7580 | * - UNPREDICTABLE if the specified mode is: | |
7581 | * -- not implemented | |
7582 | * -- not a valid mode number | |
7583 | * -- a mode that's at a higher exception level | |
7584 | * -- Monitor, if we are Non-secure | |
f01377f5 | 7585 | * For the UNPREDICTABLE cases we choose to UNDEF. |
cbc0326b | 7586 | */ |
ba63cf47 | 7587 | if (s->current_el == 1 && !s->ns && mode == ARM_CPU_MODE_MON) { |
cbc0326b PM |
7588 | gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(), 3); |
7589 | return; | |
7590 | } | |
7591 | ||
7592 | if (s->current_el == 0 || s->current_el == 2) { | |
7593 | undef = true; | |
7594 | } | |
7595 | ||
7596 | switch (mode) { | |
7597 | case ARM_CPU_MODE_USR: | |
7598 | case ARM_CPU_MODE_FIQ: | |
7599 | case ARM_CPU_MODE_IRQ: | |
7600 | case ARM_CPU_MODE_SVC: | |
7601 | case ARM_CPU_MODE_ABT: | |
7602 | case ARM_CPU_MODE_UND: | |
7603 | case ARM_CPU_MODE_SYS: | |
7604 | break; | |
7605 | case ARM_CPU_MODE_HYP: | |
7606 | if (s->current_el == 1 || !arm_dc_feature(s, ARM_FEATURE_EL2)) { | |
7607 | undef = true; | |
7608 | } | |
7609 | break; | |
7610 | case ARM_CPU_MODE_MON: | |
7611 | /* No need to check specifically for "are we non-secure" because | |
7612 | * we've already made EL0 UNDEF and handled the trap for S-EL1; | |
7613 | * so if this isn't EL3 then we must be non-secure. | |
7614 | */ | |
7615 | if (s->current_el != 3) { | |
7616 | undef = true; | |
7617 | } | |
7618 | break; | |
7619 | default: | |
7620 | undef = true; | |
7621 | } | |
7622 | ||
7623 | if (undef) { | |
7624 | gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(), | |
7625 | default_exception_el(s)); | |
7626 | return; | |
7627 | } | |
7628 | ||
7629 | addr = tcg_temp_new_i32(); | |
7630 | tmp = tcg_const_i32(mode); | |
f01377f5 PM |
7631 | /* get_r13_banked() will raise an exception if called from System mode */ |
7632 | gen_set_condexec(s); | |
7633 | gen_set_pc_im(s, s->pc - 4); | |
81465888 PM |
7634 | gen_helper_get_r13_banked(addr, cpu_env, tmp); |
7635 | tcg_temp_free_i32(tmp); | |
7636 | switch (amode) { | |
7637 | case 0: /* DA */ | |
7638 | offset = -4; | |
7639 | break; | |
7640 | case 1: /* IA */ | |
7641 | offset = 0; | |
7642 | break; | |
7643 | case 2: /* DB */ | |
7644 | offset = -8; | |
7645 | break; | |
7646 | case 3: /* IB */ | |
7647 | offset = 4; | |
7648 | break; | |
7649 | default: | |
7650 | abort(); | |
7651 | } | |
7652 | tcg_gen_addi_i32(addr, addr, offset); | |
7653 | tmp = load_reg(s, 14); | |
12dcc321 | 7654 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
5a839c0d | 7655 | tcg_temp_free_i32(tmp); |
81465888 PM |
7656 | tmp = load_cpu_field(spsr); |
7657 | tcg_gen_addi_i32(addr, addr, 4); | |
12dcc321 | 7658 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
5a839c0d | 7659 | tcg_temp_free_i32(tmp); |
81465888 PM |
7660 | if (writeback) { |
7661 | switch (amode) { | |
7662 | case 0: | |
7663 | offset = -8; | |
7664 | break; | |
7665 | case 1: | |
7666 | offset = 4; | |
7667 | break; | |
7668 | case 2: | |
7669 | offset = -4; | |
7670 | break; | |
7671 | case 3: | |
7672 | offset = 0; | |
7673 | break; | |
7674 | default: | |
7675 | abort(); | |
7676 | } | |
7677 | tcg_gen_addi_i32(addr, addr, offset); | |
7678 | tmp = tcg_const_i32(mode); | |
7679 | gen_helper_set_r13_banked(cpu_env, tmp, addr); | |
7680 | tcg_temp_free_i32(tmp); | |
7681 | } | |
7682 | tcg_temp_free_i32(addr); | |
dcba3a8d | 7683 | s->base.is_jmp = DISAS_UPDATE; |
81465888 PM |
7684 | } |
7685 | ||
c2d9644e RK |
7686 | /* Generate a label used for skipping this instruction */ |
7687 | static void arm_gen_condlabel(DisasContext *s) | |
7688 | { | |
7689 | if (!s->condjmp) { | |
7690 | s->condlabel = gen_new_label(); | |
7691 | s->condjmp = 1; | |
7692 | } | |
7693 | } | |
7694 | ||
7695 | /* Skip this instruction if the ARM condition is false */ | |
7696 | static void arm_skip_unless(DisasContext *s, uint32_t cond) | |
7697 | { | |
7698 | arm_gen_condlabel(s); | |
7699 | arm_gen_test_cc(cond ^ 1, s->condlabel); | |
7700 | } | |
7701 | ||
f4df2210 | 7702 | static void disas_arm_insn(DisasContext *s, unsigned int insn) |
9ee6e8bb | 7703 | { |
f4df2210 | 7704 | unsigned int cond, val, op1, i, shift, rm, rs, rn, rd, sh; |
39d5492a PM |
7705 | TCGv_i32 tmp; |
7706 | TCGv_i32 tmp2; | |
7707 | TCGv_i32 tmp3; | |
7708 | TCGv_i32 addr; | |
a7812ae4 | 7709 | TCGv_i64 tmp64; |
9ee6e8bb | 7710 | |
e13886e3 PM |
7711 | /* M variants do not implement ARM mode; this must raise the INVSTATE |
7712 | * UsageFault exception. | |
7713 | */ | |
b53d8923 | 7714 | if (arm_dc_feature(s, ARM_FEATURE_M)) { |
e13886e3 PM |
7715 | gen_exception_insn(s, 4, EXCP_INVSTATE, syn_uncategorized(), |
7716 | default_exception_el(s)); | |
7717 | return; | |
b53d8923 | 7718 | } |
9ee6e8bb PB |
7719 | cond = insn >> 28; |
7720 | if (cond == 0xf){ | |
be5e7a76 DES |
7721 | /* In ARMv3 and v4 the NV condition is UNPREDICTABLE; we |
7722 | * choose to UNDEF. In ARMv5 and above the space is used | |
7723 | * for miscellaneous unconditional instructions. | |
7724 | */ | |
7725 | ARCH(5); | |
7726 | ||
9ee6e8bb PB |
7727 | /* Unconditional instructions. */ |
7728 | if (((insn >> 25) & 7) == 1) { | |
7729 | /* NEON Data processing. */ | |
d614a513 | 7730 | if (!arm_dc_feature(s, ARM_FEATURE_NEON)) { |
9ee6e8bb | 7731 | goto illegal_op; |
d614a513 | 7732 | } |
9ee6e8bb | 7733 | |
7dcc1f89 | 7734 | if (disas_neon_data_insn(s, insn)) { |
9ee6e8bb | 7735 | goto illegal_op; |
7dcc1f89 | 7736 | } |
9ee6e8bb PB |
7737 | return; |
7738 | } | |
7739 | if ((insn & 0x0f100000) == 0x04000000) { | |
7740 | /* NEON load/store. */ | |
d614a513 | 7741 | if (!arm_dc_feature(s, ARM_FEATURE_NEON)) { |
9ee6e8bb | 7742 | goto illegal_op; |
d614a513 | 7743 | } |
9ee6e8bb | 7744 | |
7dcc1f89 | 7745 | if (disas_neon_ls_insn(s, insn)) { |
9ee6e8bb | 7746 | goto illegal_op; |
7dcc1f89 | 7747 | } |
9ee6e8bb PB |
7748 | return; |
7749 | } | |
6a57f3eb WN |
7750 | if ((insn & 0x0f000e10) == 0x0e000a00) { |
7751 | /* VFP. */ | |
7dcc1f89 | 7752 | if (disas_vfp_insn(s, insn)) { |
6a57f3eb WN |
7753 | goto illegal_op; |
7754 | } | |
7755 | return; | |
7756 | } | |
3d185e5d PM |
7757 | if (((insn & 0x0f30f000) == 0x0510f000) || |
7758 | ((insn & 0x0f30f010) == 0x0710f000)) { | |
7759 | if ((insn & (1 << 22)) == 0) { | |
7760 | /* PLDW; v7MP */ | |
d614a513 | 7761 | if (!arm_dc_feature(s, ARM_FEATURE_V7MP)) { |
3d185e5d PM |
7762 | goto illegal_op; |
7763 | } | |
7764 | } | |
7765 | /* Otherwise PLD; v5TE+ */ | |
be5e7a76 | 7766 | ARCH(5TE); |
3d185e5d PM |
7767 | return; |
7768 | } | |
7769 | if (((insn & 0x0f70f000) == 0x0450f000) || | |
7770 | ((insn & 0x0f70f010) == 0x0650f000)) { | |
7771 | ARCH(7); | |
7772 | return; /* PLI; V7 */ | |
7773 | } | |
7774 | if (((insn & 0x0f700000) == 0x04100000) || | |
7775 | ((insn & 0x0f700010) == 0x06100000)) { | |
d614a513 | 7776 | if (!arm_dc_feature(s, ARM_FEATURE_V7MP)) { |
3d185e5d PM |
7777 | goto illegal_op; |
7778 | } | |
7779 | return; /* v7MP: Unallocated memory hint: must NOP */ | |
7780 | } | |
7781 | ||
7782 | if ((insn & 0x0ffffdff) == 0x01010000) { | |
9ee6e8bb PB |
7783 | ARCH(6); |
7784 | /* setend */ | |
9886ecdf PB |
7785 | if (((insn >> 9) & 1) != !!(s->be_data == MO_BE)) { |
7786 | gen_helper_setend(cpu_env); | |
dcba3a8d | 7787 | s->base.is_jmp = DISAS_UPDATE; |
9ee6e8bb PB |
7788 | } |
7789 | return; | |
7790 | } else if ((insn & 0x0fffff00) == 0x057ff000) { | |
7791 | switch ((insn >> 4) & 0xf) { | |
7792 | case 1: /* clrex */ | |
7793 | ARCH(6K); | |
426f5abc | 7794 | gen_clrex(s); |
9ee6e8bb PB |
7795 | return; |
7796 | case 4: /* dsb */ | |
7797 | case 5: /* dmb */ | |
9ee6e8bb | 7798 | ARCH(7); |
61e4c432 | 7799 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); |
9ee6e8bb | 7800 | return; |
6df99dec SS |
7801 | case 6: /* isb */ |
7802 | /* We need to break the TB after this insn to execute | |
7803 | * self-modifying code correctly and also to take | |
7804 | * any pending interrupts immediately. | |
7805 | */ | |
0b609cc1 | 7806 | gen_goto_tb(s, 0, s->pc & ~1); |
6df99dec | 7807 | return; |
9888bd1e RH |
7808 | case 7: /* sb */ |
7809 | if ((insn & 0xf) || !dc_isar_feature(aa32_sb, s)) { | |
7810 | goto illegal_op; | |
7811 | } | |
7812 | /* | |
7813 | * TODO: There is no speculation barrier opcode | |
7814 | * for TCG; MB and end the TB instead. | |
7815 | */ | |
7816 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); | |
7817 | gen_goto_tb(s, 0, s->pc & ~1); | |
7818 | return; | |
9ee6e8bb PB |
7819 | default: |
7820 | goto illegal_op; | |
7821 | } | |
7822 | } else if ((insn & 0x0e5fffe0) == 0x084d0500) { | |
7823 | /* srs */ | |
81465888 PM |
7824 | ARCH(6); |
7825 | gen_srs(s, (insn & 0x1f), (insn >> 23) & 3, insn & (1 << 21)); | |
3b328448 | 7826 | return; |
ea825eee | 7827 | } else if ((insn & 0x0e50ffe0) == 0x08100a00) { |
9ee6e8bb | 7828 | /* rfe */ |
c67b6b71 | 7829 | int32_t offset; |
9ee6e8bb PB |
7830 | if (IS_USER(s)) |
7831 | goto illegal_op; | |
7832 | ARCH(6); | |
7833 | rn = (insn >> 16) & 0xf; | |
b0109805 | 7834 | addr = load_reg(s, rn); |
9ee6e8bb PB |
7835 | i = (insn >> 23) & 3; |
7836 | switch (i) { | |
b0109805 | 7837 | case 0: offset = -4; break; /* DA */ |
c67b6b71 FN |
7838 | case 1: offset = 0; break; /* IA */ |
7839 | case 2: offset = -8; break; /* DB */ | |
b0109805 | 7840 | case 3: offset = 4; break; /* IB */ |
9ee6e8bb PB |
7841 | default: abort(); |
7842 | } | |
7843 | if (offset) | |
b0109805 PB |
7844 | tcg_gen_addi_i32(addr, addr, offset); |
7845 | /* Load PC into tmp and CPSR into tmp2. */ | |
5a839c0d | 7846 | tmp = tcg_temp_new_i32(); |
12dcc321 | 7847 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
b0109805 | 7848 | tcg_gen_addi_i32(addr, addr, 4); |
5a839c0d | 7849 | tmp2 = tcg_temp_new_i32(); |
12dcc321 | 7850 | gen_aa32_ld32u(s, tmp2, addr, get_mem_index(s)); |
9ee6e8bb PB |
7851 | if (insn & (1 << 21)) { |
7852 | /* Base writeback. */ | |
7853 | switch (i) { | |
b0109805 | 7854 | case 0: offset = -8; break; |
c67b6b71 FN |
7855 | case 1: offset = 4; break; |
7856 | case 2: offset = -4; break; | |
b0109805 | 7857 | case 3: offset = 0; break; |
9ee6e8bb PB |
7858 | default: abort(); |
7859 | } | |
7860 | if (offset) | |
b0109805 PB |
7861 | tcg_gen_addi_i32(addr, addr, offset); |
7862 | store_reg(s, rn, addr); | |
7863 | } else { | |
7d1b0095 | 7864 | tcg_temp_free_i32(addr); |
9ee6e8bb | 7865 | } |
b0109805 | 7866 | gen_rfe(s, tmp, tmp2); |
c67b6b71 | 7867 | return; |
9ee6e8bb PB |
7868 | } else if ((insn & 0x0e000000) == 0x0a000000) { |
7869 | /* branch link and change to thumb (blx <offset>) */ | |
7870 | int32_t offset; | |
7871 | ||
7872 | val = (uint32_t)s->pc; | |
7d1b0095 | 7873 | tmp = tcg_temp_new_i32(); |
d9ba4830 PB |
7874 | tcg_gen_movi_i32(tmp, val); |
7875 | store_reg(s, 14, tmp); | |
9ee6e8bb PB |
7876 | /* Sign-extend the 24-bit offset */ |
7877 | offset = (((int32_t)insn) << 8) >> 8; | |
7878 | /* offset * 4 + bit24 * 2 + (thumb bit) */ | |
7879 | val += (offset << 2) | ((insn >> 23) & 2) | 1; | |
7880 | /* pipeline offset */ | |
7881 | val += 4; | |
be5e7a76 | 7882 | /* protected by ARCH(5); above, near the start of uncond block */ |
d9ba4830 | 7883 | gen_bx_im(s, val); |
9ee6e8bb PB |
7884 | return; |
7885 | } else if ((insn & 0x0e000f00) == 0x0c000100) { | |
d614a513 | 7886 | if (arm_dc_feature(s, ARM_FEATURE_IWMMXT)) { |
9ee6e8bb | 7887 | /* iWMMXt register transfer. */ |
c0f4af17 | 7888 | if (extract32(s->c15_cpar, 1, 1)) { |
7dcc1f89 | 7889 | if (!disas_iwmmxt_insn(s, insn)) { |
9ee6e8bb | 7890 | return; |
c0f4af17 PM |
7891 | } |
7892 | } | |
9ee6e8bb | 7893 | } |
8b7209fa RH |
7894 | } else if ((insn & 0x0e000a00) == 0x0c000800 |
7895 | && arm_dc_feature(s, ARM_FEATURE_V8)) { | |
7896 | if (disas_neon_insn_3same_ext(s, insn)) { | |
7897 | goto illegal_op; | |
7898 | } | |
7899 | return; | |
638808ff RH |
7900 | } else if ((insn & 0x0f000a00) == 0x0e000800 |
7901 | && arm_dc_feature(s, ARM_FEATURE_V8)) { | |
7902 | if (disas_neon_insn_2reg_scalar_ext(s, insn)) { | |
7903 | goto illegal_op; | |
7904 | } | |
7905 | return; | |
9ee6e8bb PB |
7906 | } else if ((insn & 0x0fe00000) == 0x0c400000) { |
7907 | /* Coprocessor double register transfer. */ | |
be5e7a76 | 7908 | ARCH(5TE); |
9ee6e8bb PB |
7909 | } else if ((insn & 0x0f000010) == 0x0e000010) { |
7910 | /* Additional coprocessor register transfer. */ | |
7997d92f | 7911 | } else if ((insn & 0x0ff10020) == 0x01000000) { |
9ee6e8bb PB |
7912 | uint32_t mask; |
7913 | uint32_t val; | |
7914 | /* cps (privileged) */ | |
7915 | if (IS_USER(s)) | |
7916 | return; | |
7917 | mask = val = 0; | |
7918 | if (insn & (1 << 19)) { | |
7919 | if (insn & (1 << 8)) | |
7920 | mask |= CPSR_A; | |
7921 | if (insn & (1 << 7)) | |
7922 | mask |= CPSR_I; | |
7923 | if (insn & (1 << 6)) | |
7924 | mask |= CPSR_F; | |
7925 | if (insn & (1 << 18)) | |
7926 | val |= mask; | |
7927 | } | |
7997d92f | 7928 | if (insn & (1 << 17)) { |
9ee6e8bb PB |
7929 | mask |= CPSR_M; |
7930 | val |= (insn & 0x1f); | |
7931 | } | |
7932 | if (mask) { | |
2fbac54b | 7933 | gen_set_psr_im(s, mask, 0, val); |
9ee6e8bb PB |
7934 | } |
7935 | return; | |
7936 | } | |
7937 | goto illegal_op; | |
7938 | } | |
7939 | if (cond != 0xe) { | |
7940 | /* if not always execute, we generate a conditional jump to | |
7941 | next instruction */ | |
c2d9644e | 7942 | arm_skip_unless(s, cond); |
9ee6e8bb PB |
7943 | } |
7944 | if ((insn & 0x0f900000) == 0x03000000) { | |
7945 | if ((insn & (1 << 21)) == 0) { | |
7946 | ARCH(6T2); | |
7947 | rd = (insn >> 12) & 0xf; | |
7948 | val = ((insn >> 4) & 0xf000) | (insn & 0xfff); | |
7949 | if ((insn & (1 << 22)) == 0) { | |
7950 | /* MOVW */ | |
7d1b0095 | 7951 | tmp = tcg_temp_new_i32(); |
5e3f878a | 7952 | tcg_gen_movi_i32(tmp, val); |
9ee6e8bb PB |
7953 | } else { |
7954 | /* MOVT */ | |
5e3f878a | 7955 | tmp = load_reg(s, rd); |
86831435 | 7956 | tcg_gen_ext16u_i32(tmp, tmp); |
5e3f878a | 7957 | tcg_gen_ori_i32(tmp, tmp, val << 16); |
9ee6e8bb | 7958 | } |
5e3f878a | 7959 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7960 | } else { |
7961 | if (((insn >> 12) & 0xf) != 0xf) | |
7962 | goto illegal_op; | |
7963 | if (((insn >> 16) & 0xf) == 0) { | |
7964 | gen_nop_hint(s, insn & 0xff); | |
7965 | } else { | |
7966 | /* CPSR = immediate */ | |
7967 | val = insn & 0xff; | |
7968 | shift = ((insn >> 8) & 0xf) * 2; | |
7969 | if (shift) | |
7970 | val = (val >> shift) | (val << (32 - shift)); | |
9ee6e8bb | 7971 | i = ((insn & (1 << 22)) != 0); |
7dcc1f89 PM |
7972 | if (gen_set_psr_im(s, msr_mask(s, (insn >> 16) & 0xf, i), |
7973 | i, val)) { | |
9ee6e8bb | 7974 | goto illegal_op; |
7dcc1f89 | 7975 | } |
9ee6e8bb PB |
7976 | } |
7977 | } | |
7978 | } else if ((insn & 0x0f900000) == 0x01000000 | |
7979 | && (insn & 0x00000090) != 0x00000090) { | |
7980 | /* miscellaneous instructions */ | |
7981 | op1 = (insn >> 21) & 3; | |
7982 | sh = (insn >> 4) & 0xf; | |
7983 | rm = insn & 0xf; | |
7984 | switch (sh) { | |
8bfd0550 PM |
7985 | case 0x0: /* MSR, MRS */ |
7986 | if (insn & (1 << 9)) { | |
7987 | /* MSR (banked) and MRS (banked) */ | |
7988 | int sysm = extract32(insn, 16, 4) | | |
7989 | (extract32(insn, 8, 1) << 4); | |
7990 | int r = extract32(insn, 22, 1); | |
7991 | ||
7992 | if (op1 & 1) { | |
7993 | /* MSR (banked) */ | |
7994 | gen_msr_banked(s, r, sysm, rm); | |
7995 | } else { | |
7996 | /* MRS (banked) */ | |
7997 | int rd = extract32(insn, 12, 4); | |
7998 | ||
7999 | gen_mrs_banked(s, r, sysm, rd); | |
8000 | } | |
8001 | break; | |
8002 | } | |
8003 | ||
8004 | /* MSR, MRS (for PSRs) */ | |
9ee6e8bb PB |
8005 | if (op1 & 1) { |
8006 | /* PSR = reg */ | |
2fbac54b | 8007 | tmp = load_reg(s, rm); |
9ee6e8bb | 8008 | i = ((op1 & 2) != 0); |
7dcc1f89 | 8009 | if (gen_set_psr(s, msr_mask(s, (insn >> 16) & 0xf, i), i, tmp)) |
9ee6e8bb PB |
8010 | goto illegal_op; |
8011 | } else { | |
8012 | /* reg = PSR */ | |
8013 | rd = (insn >> 12) & 0xf; | |
8014 | if (op1 & 2) { | |
8015 | if (IS_USER(s)) | |
8016 | goto illegal_op; | |
d9ba4830 | 8017 | tmp = load_cpu_field(spsr); |
9ee6e8bb | 8018 | } else { |
7d1b0095 | 8019 | tmp = tcg_temp_new_i32(); |
9ef39277 | 8020 | gen_helper_cpsr_read(tmp, cpu_env); |
9ee6e8bb | 8021 | } |
d9ba4830 | 8022 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8023 | } |
8024 | break; | |
8025 | case 0x1: | |
8026 | if (op1 == 1) { | |
8027 | /* branch/exchange thumb (bx). */ | |
be5e7a76 | 8028 | ARCH(4T); |
d9ba4830 PB |
8029 | tmp = load_reg(s, rm); |
8030 | gen_bx(s, tmp); | |
9ee6e8bb PB |
8031 | } else if (op1 == 3) { |
8032 | /* clz */ | |
be5e7a76 | 8033 | ARCH(5); |
9ee6e8bb | 8034 | rd = (insn >> 12) & 0xf; |
1497c961 | 8035 | tmp = load_reg(s, rm); |
7539a012 | 8036 | tcg_gen_clzi_i32(tmp, tmp, 32); |
1497c961 | 8037 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8038 | } else { |
8039 | goto illegal_op; | |
8040 | } | |
8041 | break; | |
8042 | case 0x2: | |
8043 | if (op1 == 1) { | |
8044 | ARCH(5J); /* bxj */ | |
8045 | /* Trivial implementation equivalent to bx. */ | |
d9ba4830 PB |
8046 | tmp = load_reg(s, rm); |
8047 | gen_bx(s, tmp); | |
9ee6e8bb PB |
8048 | } else { |
8049 | goto illegal_op; | |
8050 | } | |
8051 | break; | |
8052 | case 0x3: | |
8053 | if (op1 != 1) | |
8054 | goto illegal_op; | |
8055 | ||
be5e7a76 | 8056 | ARCH(5); |
9ee6e8bb | 8057 | /* branch link/exchange thumb (blx) */ |
d9ba4830 | 8058 | tmp = load_reg(s, rm); |
7d1b0095 | 8059 | tmp2 = tcg_temp_new_i32(); |
d9ba4830 PB |
8060 | tcg_gen_movi_i32(tmp2, s->pc); |
8061 | store_reg(s, 14, tmp2); | |
8062 | gen_bx(s, tmp); | |
9ee6e8bb | 8063 | break; |
eb0ecd5a WN |
8064 | case 0x4: |
8065 | { | |
8066 | /* crc32/crc32c */ | |
8067 | uint32_t c = extract32(insn, 8, 4); | |
8068 | ||
8069 | /* Check this CPU supports ARMv8 CRC instructions. | |
8070 | * op1 == 3 is UNPREDICTABLE but handle as UNDEFINED. | |
8071 | * Bits 8, 10 and 11 should be zero. | |
8072 | */ | |
962fcbf2 | 8073 | if (!dc_isar_feature(aa32_crc32, s) || op1 == 0x3 || (c & 0xd) != 0) { |
eb0ecd5a WN |
8074 | goto illegal_op; |
8075 | } | |
8076 | ||
8077 | rn = extract32(insn, 16, 4); | |
8078 | rd = extract32(insn, 12, 4); | |
8079 | ||
8080 | tmp = load_reg(s, rn); | |
8081 | tmp2 = load_reg(s, rm); | |
aa633469 PM |
8082 | if (op1 == 0) { |
8083 | tcg_gen_andi_i32(tmp2, tmp2, 0xff); | |
8084 | } else if (op1 == 1) { | |
8085 | tcg_gen_andi_i32(tmp2, tmp2, 0xffff); | |
8086 | } | |
eb0ecd5a WN |
8087 | tmp3 = tcg_const_i32(1 << op1); |
8088 | if (c & 0x2) { | |
8089 | gen_helper_crc32c(tmp, tmp, tmp2, tmp3); | |
8090 | } else { | |
8091 | gen_helper_crc32(tmp, tmp, tmp2, tmp3); | |
8092 | } | |
8093 | tcg_temp_free_i32(tmp2); | |
8094 | tcg_temp_free_i32(tmp3); | |
8095 | store_reg(s, rd, tmp); | |
8096 | break; | |
8097 | } | |
9ee6e8bb | 8098 | case 0x5: /* saturating add/subtract */ |
be5e7a76 | 8099 | ARCH(5TE); |
9ee6e8bb PB |
8100 | rd = (insn >> 12) & 0xf; |
8101 | rn = (insn >> 16) & 0xf; | |
b40d0353 | 8102 | tmp = load_reg(s, rm); |
5e3f878a | 8103 | tmp2 = load_reg(s, rn); |
9ee6e8bb | 8104 | if (op1 & 2) |
9ef39277 | 8105 | gen_helper_double_saturate(tmp2, cpu_env, tmp2); |
9ee6e8bb | 8106 | if (op1 & 1) |
9ef39277 | 8107 | gen_helper_sub_saturate(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 8108 | else |
9ef39277 | 8109 | gen_helper_add_saturate(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8110 | tcg_temp_free_i32(tmp2); |
5e3f878a | 8111 | store_reg(s, rd, tmp); |
9ee6e8bb | 8112 | break; |
55c544ed PM |
8113 | case 0x6: /* ERET */ |
8114 | if (op1 != 3) { | |
8115 | goto illegal_op; | |
8116 | } | |
8117 | if (!arm_dc_feature(s, ARM_FEATURE_V7VE)) { | |
8118 | goto illegal_op; | |
8119 | } | |
8120 | if ((insn & 0x000fff0f) != 0x0000000e) { | |
8121 | /* UNPREDICTABLE; we choose to UNDEF */ | |
8122 | goto illegal_op; | |
8123 | } | |
8124 | ||
8125 | if (s->current_el == 2) { | |
8126 | tmp = load_cpu_field(elr_el[2]); | |
8127 | } else { | |
8128 | tmp = load_reg(s, 14); | |
8129 | } | |
8130 | gen_exception_return(s, tmp); | |
8131 | break; | |
49e14940 | 8132 | case 7: |
d4a2dc67 PM |
8133 | { |
8134 | int imm16 = extract32(insn, 0, 4) | (extract32(insn, 8, 12) << 4); | |
37e6456e | 8135 | switch (op1) { |
19a6e31c PM |
8136 | case 0: |
8137 | /* HLT */ | |
8138 | gen_hlt(s, imm16); | |
8139 | break; | |
37e6456e PM |
8140 | case 1: |
8141 | /* bkpt */ | |
8142 | ARCH(5); | |
c900a2e6 | 8143 | gen_exception_bkpt_insn(s, 4, syn_aa32_bkpt(imm16, false)); |
37e6456e PM |
8144 | break; |
8145 | case 2: | |
8146 | /* Hypervisor call (v7) */ | |
8147 | ARCH(7); | |
8148 | if (IS_USER(s)) { | |
8149 | goto illegal_op; | |
8150 | } | |
8151 | gen_hvc(s, imm16); | |
8152 | break; | |
8153 | case 3: | |
8154 | /* Secure monitor call (v6+) */ | |
8155 | ARCH(6K); | |
8156 | if (IS_USER(s)) { | |
8157 | goto illegal_op; | |
8158 | } | |
8159 | gen_smc(s); | |
8160 | break; | |
8161 | default: | |
19a6e31c | 8162 | g_assert_not_reached(); |
49e14940 | 8163 | } |
9ee6e8bb | 8164 | break; |
d4a2dc67 | 8165 | } |
9ee6e8bb PB |
8166 | case 0x8: /* signed multiply */ |
8167 | case 0xa: | |
8168 | case 0xc: | |
8169 | case 0xe: | |
be5e7a76 | 8170 | ARCH(5TE); |
9ee6e8bb PB |
8171 | rs = (insn >> 8) & 0xf; |
8172 | rn = (insn >> 12) & 0xf; | |
8173 | rd = (insn >> 16) & 0xf; | |
8174 | if (op1 == 1) { | |
8175 | /* (32 * 16) >> 16 */ | |
5e3f878a PB |
8176 | tmp = load_reg(s, rm); |
8177 | tmp2 = load_reg(s, rs); | |
9ee6e8bb | 8178 | if (sh & 4) |
5e3f878a | 8179 | tcg_gen_sari_i32(tmp2, tmp2, 16); |
9ee6e8bb | 8180 | else |
5e3f878a | 8181 | gen_sxth(tmp2); |
a7812ae4 PB |
8182 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
8183 | tcg_gen_shri_i64(tmp64, tmp64, 16); | |
7d1b0095 | 8184 | tmp = tcg_temp_new_i32(); |
ecc7b3aa | 8185 | tcg_gen_extrl_i64_i32(tmp, tmp64); |
b75263d6 | 8186 | tcg_temp_free_i64(tmp64); |
9ee6e8bb | 8187 | if ((sh & 2) == 0) { |
5e3f878a | 8188 | tmp2 = load_reg(s, rn); |
9ef39277 | 8189 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8190 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8191 | } |
5e3f878a | 8192 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8193 | } else { |
8194 | /* 16 * 16 */ | |
5e3f878a PB |
8195 | tmp = load_reg(s, rm); |
8196 | tmp2 = load_reg(s, rs); | |
8197 | gen_mulxy(tmp, tmp2, sh & 2, sh & 4); | |
7d1b0095 | 8198 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8199 | if (op1 == 2) { |
a7812ae4 PB |
8200 | tmp64 = tcg_temp_new_i64(); |
8201 | tcg_gen_ext_i32_i64(tmp64, tmp); | |
7d1b0095 | 8202 | tcg_temp_free_i32(tmp); |
a7812ae4 PB |
8203 | gen_addq(s, tmp64, rn, rd); |
8204 | gen_storeq_reg(s, rn, rd, tmp64); | |
b75263d6 | 8205 | tcg_temp_free_i64(tmp64); |
9ee6e8bb PB |
8206 | } else { |
8207 | if (op1 == 0) { | |
5e3f878a | 8208 | tmp2 = load_reg(s, rn); |
9ef39277 | 8209 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8210 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8211 | } |
5e3f878a | 8212 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8213 | } |
8214 | } | |
8215 | break; | |
8216 | default: | |
8217 | goto illegal_op; | |
8218 | } | |
8219 | } else if (((insn & 0x0e000000) == 0 && | |
8220 | (insn & 0x00000090) != 0x90) || | |
8221 | ((insn & 0x0e000000) == (1 << 25))) { | |
8222 | int set_cc, logic_cc, shiftop; | |
8223 | ||
8224 | op1 = (insn >> 21) & 0xf; | |
8225 | set_cc = (insn >> 20) & 1; | |
8226 | logic_cc = table_logic_cc[op1] & set_cc; | |
8227 | ||
8228 | /* data processing instruction */ | |
8229 | if (insn & (1 << 25)) { | |
8230 | /* immediate operand */ | |
8231 | val = insn & 0xff; | |
8232 | shift = ((insn >> 8) & 0xf) * 2; | |
e9bb4aa9 | 8233 | if (shift) { |
9ee6e8bb | 8234 | val = (val >> shift) | (val << (32 - shift)); |
e9bb4aa9 | 8235 | } |
7d1b0095 | 8236 | tmp2 = tcg_temp_new_i32(); |
e9bb4aa9 JR |
8237 | tcg_gen_movi_i32(tmp2, val); |
8238 | if (logic_cc && shift) { | |
8239 | gen_set_CF_bit31(tmp2); | |
8240 | } | |
9ee6e8bb PB |
8241 | } else { |
8242 | /* register */ | |
8243 | rm = (insn) & 0xf; | |
e9bb4aa9 | 8244 | tmp2 = load_reg(s, rm); |
9ee6e8bb PB |
8245 | shiftop = (insn >> 5) & 3; |
8246 | if (!(insn & (1 << 4))) { | |
8247 | shift = (insn >> 7) & 0x1f; | |
e9bb4aa9 | 8248 | gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); |
9ee6e8bb PB |
8249 | } else { |
8250 | rs = (insn >> 8) & 0xf; | |
8984bd2e | 8251 | tmp = load_reg(s, rs); |
e9bb4aa9 | 8252 | gen_arm_shift_reg(tmp2, shiftop, tmp, logic_cc); |
9ee6e8bb PB |
8253 | } |
8254 | } | |
8255 | if (op1 != 0x0f && op1 != 0x0d) { | |
8256 | rn = (insn >> 16) & 0xf; | |
e9bb4aa9 JR |
8257 | tmp = load_reg(s, rn); |
8258 | } else { | |
f764718d | 8259 | tmp = NULL; |
9ee6e8bb PB |
8260 | } |
8261 | rd = (insn >> 12) & 0xf; | |
8262 | switch(op1) { | |
8263 | case 0x00: | |
e9bb4aa9 JR |
8264 | tcg_gen_and_i32(tmp, tmp, tmp2); |
8265 | if (logic_cc) { | |
8266 | gen_logic_CC(tmp); | |
8267 | } | |
7dcc1f89 | 8268 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8269 | break; |
8270 | case 0x01: | |
e9bb4aa9 JR |
8271 | tcg_gen_xor_i32(tmp, tmp, tmp2); |
8272 | if (logic_cc) { | |
8273 | gen_logic_CC(tmp); | |
8274 | } | |
7dcc1f89 | 8275 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8276 | break; |
8277 | case 0x02: | |
8278 | if (set_cc && rd == 15) { | |
8279 | /* SUBS r15, ... is used for exception return. */ | |
e9bb4aa9 | 8280 | if (IS_USER(s)) { |
9ee6e8bb | 8281 | goto illegal_op; |
e9bb4aa9 | 8282 | } |
72485ec4 | 8283 | gen_sub_CC(tmp, tmp, tmp2); |
e9bb4aa9 | 8284 | gen_exception_return(s, tmp); |
9ee6e8bb | 8285 | } else { |
e9bb4aa9 | 8286 | if (set_cc) { |
72485ec4 | 8287 | gen_sub_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
8288 | } else { |
8289 | tcg_gen_sub_i32(tmp, tmp, tmp2); | |
8290 | } | |
7dcc1f89 | 8291 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8292 | } |
8293 | break; | |
8294 | case 0x03: | |
e9bb4aa9 | 8295 | if (set_cc) { |
72485ec4 | 8296 | gen_sub_CC(tmp, tmp2, tmp); |
e9bb4aa9 JR |
8297 | } else { |
8298 | tcg_gen_sub_i32(tmp, tmp2, tmp); | |
8299 | } | |
7dcc1f89 | 8300 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8301 | break; |
8302 | case 0x04: | |
e9bb4aa9 | 8303 | if (set_cc) { |
72485ec4 | 8304 | gen_add_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
8305 | } else { |
8306 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
8307 | } | |
7dcc1f89 | 8308 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8309 | break; |
8310 | case 0x05: | |
e9bb4aa9 | 8311 | if (set_cc) { |
49b4c31e | 8312 | gen_adc_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
8313 | } else { |
8314 | gen_add_carry(tmp, tmp, tmp2); | |
8315 | } | |
7dcc1f89 | 8316 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8317 | break; |
8318 | case 0x06: | |
e9bb4aa9 | 8319 | if (set_cc) { |
2de68a49 | 8320 | gen_sbc_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
8321 | } else { |
8322 | gen_sub_carry(tmp, tmp, tmp2); | |
8323 | } | |
7dcc1f89 | 8324 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8325 | break; |
8326 | case 0x07: | |
e9bb4aa9 | 8327 | if (set_cc) { |
2de68a49 | 8328 | gen_sbc_CC(tmp, tmp2, tmp); |
e9bb4aa9 JR |
8329 | } else { |
8330 | gen_sub_carry(tmp, tmp2, tmp); | |
8331 | } | |
7dcc1f89 | 8332 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8333 | break; |
8334 | case 0x08: | |
8335 | if (set_cc) { | |
e9bb4aa9 JR |
8336 | tcg_gen_and_i32(tmp, tmp, tmp2); |
8337 | gen_logic_CC(tmp); | |
9ee6e8bb | 8338 | } |
7d1b0095 | 8339 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8340 | break; |
8341 | case 0x09: | |
8342 | if (set_cc) { | |
e9bb4aa9 JR |
8343 | tcg_gen_xor_i32(tmp, tmp, tmp2); |
8344 | gen_logic_CC(tmp); | |
9ee6e8bb | 8345 | } |
7d1b0095 | 8346 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8347 | break; |
8348 | case 0x0a: | |
8349 | if (set_cc) { | |
72485ec4 | 8350 | gen_sub_CC(tmp, tmp, tmp2); |
9ee6e8bb | 8351 | } |
7d1b0095 | 8352 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8353 | break; |
8354 | case 0x0b: | |
8355 | if (set_cc) { | |
72485ec4 | 8356 | gen_add_CC(tmp, tmp, tmp2); |
9ee6e8bb | 8357 | } |
7d1b0095 | 8358 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8359 | break; |
8360 | case 0x0c: | |
e9bb4aa9 JR |
8361 | tcg_gen_or_i32(tmp, tmp, tmp2); |
8362 | if (logic_cc) { | |
8363 | gen_logic_CC(tmp); | |
8364 | } | |
7dcc1f89 | 8365 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8366 | break; |
8367 | case 0x0d: | |
8368 | if (logic_cc && rd == 15) { | |
8369 | /* MOVS r15, ... is used for exception return. */ | |
e9bb4aa9 | 8370 | if (IS_USER(s)) { |
9ee6e8bb | 8371 | goto illegal_op; |
e9bb4aa9 JR |
8372 | } |
8373 | gen_exception_return(s, tmp2); | |
9ee6e8bb | 8374 | } else { |
e9bb4aa9 JR |
8375 | if (logic_cc) { |
8376 | gen_logic_CC(tmp2); | |
8377 | } | |
7dcc1f89 | 8378 | store_reg_bx(s, rd, tmp2); |
9ee6e8bb PB |
8379 | } |
8380 | break; | |
8381 | case 0x0e: | |
f669df27 | 8382 | tcg_gen_andc_i32(tmp, tmp, tmp2); |
e9bb4aa9 JR |
8383 | if (logic_cc) { |
8384 | gen_logic_CC(tmp); | |
8385 | } | |
7dcc1f89 | 8386 | store_reg_bx(s, rd, tmp); |
9ee6e8bb PB |
8387 | break; |
8388 | default: | |
8389 | case 0x0f: | |
e9bb4aa9 JR |
8390 | tcg_gen_not_i32(tmp2, tmp2); |
8391 | if (logic_cc) { | |
8392 | gen_logic_CC(tmp2); | |
8393 | } | |
7dcc1f89 | 8394 | store_reg_bx(s, rd, tmp2); |
9ee6e8bb PB |
8395 | break; |
8396 | } | |
e9bb4aa9 | 8397 | if (op1 != 0x0f && op1 != 0x0d) { |
7d1b0095 | 8398 | tcg_temp_free_i32(tmp2); |
e9bb4aa9 | 8399 | } |
9ee6e8bb PB |
8400 | } else { |
8401 | /* other instructions */ | |
8402 | op1 = (insn >> 24) & 0xf; | |
8403 | switch(op1) { | |
8404 | case 0x0: | |
8405 | case 0x1: | |
8406 | /* multiplies, extra load/stores */ | |
8407 | sh = (insn >> 5) & 3; | |
8408 | if (sh == 0) { | |
8409 | if (op1 == 0x0) { | |
8410 | rd = (insn >> 16) & 0xf; | |
8411 | rn = (insn >> 12) & 0xf; | |
8412 | rs = (insn >> 8) & 0xf; | |
8413 | rm = (insn) & 0xf; | |
8414 | op1 = (insn >> 20) & 0xf; | |
8415 | switch (op1) { | |
8416 | case 0: case 1: case 2: case 3: case 6: | |
8417 | /* 32 bit mul */ | |
5e3f878a PB |
8418 | tmp = load_reg(s, rs); |
8419 | tmp2 = load_reg(s, rm); | |
8420 | tcg_gen_mul_i32(tmp, tmp, tmp2); | |
7d1b0095 | 8421 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8422 | if (insn & (1 << 22)) { |
8423 | /* Subtract (mls) */ | |
8424 | ARCH(6T2); | |
5e3f878a PB |
8425 | tmp2 = load_reg(s, rn); |
8426 | tcg_gen_sub_i32(tmp, tmp2, tmp); | |
7d1b0095 | 8427 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8428 | } else if (insn & (1 << 21)) { |
8429 | /* Add */ | |
5e3f878a PB |
8430 | tmp2 = load_reg(s, rn); |
8431 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
7d1b0095 | 8432 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8433 | } |
8434 | if (insn & (1 << 20)) | |
5e3f878a PB |
8435 | gen_logic_CC(tmp); |
8436 | store_reg(s, rd, tmp); | |
9ee6e8bb | 8437 | break; |
8aac08b1 AJ |
8438 | case 4: |
8439 | /* 64 bit mul double accumulate (UMAAL) */ | |
8440 | ARCH(6); | |
8441 | tmp = load_reg(s, rs); | |
8442 | tmp2 = load_reg(s, rm); | |
8443 | tmp64 = gen_mulu_i64_i32(tmp, tmp2); | |
8444 | gen_addq_lo(s, tmp64, rn); | |
8445 | gen_addq_lo(s, tmp64, rd); | |
8446 | gen_storeq_reg(s, rn, rd, tmp64); | |
8447 | tcg_temp_free_i64(tmp64); | |
8448 | break; | |
8449 | case 8: case 9: case 10: case 11: | |
8450 | case 12: case 13: case 14: case 15: | |
8451 | /* 64 bit mul: UMULL, UMLAL, SMULL, SMLAL. */ | |
5e3f878a PB |
8452 | tmp = load_reg(s, rs); |
8453 | tmp2 = load_reg(s, rm); | |
8aac08b1 | 8454 | if (insn & (1 << 22)) { |
c9f10124 | 8455 | tcg_gen_muls2_i32(tmp, tmp2, tmp, tmp2); |
8aac08b1 | 8456 | } else { |
c9f10124 | 8457 | tcg_gen_mulu2_i32(tmp, tmp2, tmp, tmp2); |
8aac08b1 AJ |
8458 | } |
8459 | if (insn & (1 << 21)) { /* mult accumulate */ | |
39d5492a PM |
8460 | TCGv_i32 al = load_reg(s, rn); |
8461 | TCGv_i32 ah = load_reg(s, rd); | |
c9f10124 | 8462 | tcg_gen_add2_i32(tmp, tmp2, tmp, tmp2, al, ah); |
39d5492a PM |
8463 | tcg_temp_free_i32(al); |
8464 | tcg_temp_free_i32(ah); | |
9ee6e8bb | 8465 | } |
8aac08b1 | 8466 | if (insn & (1 << 20)) { |
c9f10124 | 8467 | gen_logicq_cc(tmp, tmp2); |
8aac08b1 | 8468 | } |
c9f10124 RH |
8469 | store_reg(s, rn, tmp); |
8470 | store_reg(s, rd, tmp2); | |
9ee6e8bb | 8471 | break; |
8aac08b1 AJ |
8472 | default: |
8473 | goto illegal_op; | |
9ee6e8bb PB |
8474 | } |
8475 | } else { | |
8476 | rn = (insn >> 16) & 0xf; | |
8477 | rd = (insn >> 12) & 0xf; | |
8478 | if (insn & (1 << 23)) { | |
8479 | /* load/store exclusive */ | |
96c55295 PM |
8480 | bool is_ld = extract32(insn, 20, 1); |
8481 | bool is_lasr = !extract32(insn, 8, 1); | |
2359bf80 | 8482 | int op2 = (insn >> 8) & 3; |
86753403 | 8483 | op1 = (insn >> 21) & 0x3; |
2359bf80 MR |
8484 | |
8485 | switch (op2) { | |
8486 | case 0: /* lda/stl */ | |
8487 | if (op1 == 1) { | |
8488 | goto illegal_op; | |
8489 | } | |
8490 | ARCH(8); | |
8491 | break; | |
8492 | case 1: /* reserved */ | |
8493 | goto illegal_op; | |
8494 | case 2: /* ldaex/stlex */ | |
8495 | ARCH(8); | |
8496 | break; | |
8497 | case 3: /* ldrex/strex */ | |
8498 | if (op1) { | |
8499 | ARCH(6K); | |
8500 | } else { | |
8501 | ARCH(6); | |
8502 | } | |
8503 | break; | |
8504 | } | |
8505 | ||
3174f8e9 | 8506 | addr = tcg_temp_local_new_i32(); |
98a46317 | 8507 | load_reg_var(s, addr, rn); |
2359bf80 | 8508 | |
96c55295 PM |
8509 | if (is_lasr && !is_ld) { |
8510 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL); | |
8511 | } | |
8512 | ||
2359bf80 | 8513 | if (op2 == 0) { |
96c55295 | 8514 | if (is_ld) { |
2359bf80 MR |
8515 | tmp = tcg_temp_new_i32(); |
8516 | switch (op1) { | |
8517 | case 0: /* lda */ | |
9bb6558a PM |
8518 | gen_aa32_ld32u_iss(s, tmp, addr, |
8519 | get_mem_index(s), | |
8520 | rd | ISSIsAcqRel); | |
2359bf80 MR |
8521 | break; |
8522 | case 2: /* ldab */ | |
9bb6558a PM |
8523 | gen_aa32_ld8u_iss(s, tmp, addr, |
8524 | get_mem_index(s), | |
8525 | rd | ISSIsAcqRel); | |
2359bf80 MR |
8526 | break; |
8527 | case 3: /* ldah */ | |
9bb6558a PM |
8528 | gen_aa32_ld16u_iss(s, tmp, addr, |
8529 | get_mem_index(s), | |
8530 | rd | ISSIsAcqRel); | |
2359bf80 MR |
8531 | break; |
8532 | default: | |
8533 | abort(); | |
8534 | } | |
8535 | store_reg(s, rd, tmp); | |
8536 | } else { | |
8537 | rm = insn & 0xf; | |
8538 | tmp = load_reg(s, rm); | |
8539 | switch (op1) { | |
8540 | case 0: /* stl */ | |
9bb6558a PM |
8541 | gen_aa32_st32_iss(s, tmp, addr, |
8542 | get_mem_index(s), | |
8543 | rm | ISSIsAcqRel); | |
2359bf80 MR |
8544 | break; |
8545 | case 2: /* stlb */ | |
9bb6558a PM |
8546 | gen_aa32_st8_iss(s, tmp, addr, |
8547 | get_mem_index(s), | |
8548 | rm | ISSIsAcqRel); | |
2359bf80 MR |
8549 | break; |
8550 | case 3: /* stlh */ | |
9bb6558a PM |
8551 | gen_aa32_st16_iss(s, tmp, addr, |
8552 | get_mem_index(s), | |
8553 | rm | ISSIsAcqRel); | |
2359bf80 MR |
8554 | break; |
8555 | default: | |
8556 | abort(); | |
8557 | } | |
8558 | tcg_temp_free_i32(tmp); | |
8559 | } | |
96c55295 | 8560 | } else if (is_ld) { |
86753403 PB |
8561 | switch (op1) { |
8562 | case 0: /* ldrex */ | |
426f5abc | 8563 | gen_load_exclusive(s, rd, 15, addr, 2); |
86753403 PB |
8564 | break; |
8565 | case 1: /* ldrexd */ | |
426f5abc | 8566 | gen_load_exclusive(s, rd, rd + 1, addr, 3); |
86753403 PB |
8567 | break; |
8568 | case 2: /* ldrexb */ | |
426f5abc | 8569 | gen_load_exclusive(s, rd, 15, addr, 0); |
86753403 PB |
8570 | break; |
8571 | case 3: /* ldrexh */ | |
426f5abc | 8572 | gen_load_exclusive(s, rd, 15, addr, 1); |
86753403 PB |
8573 | break; |
8574 | default: | |
8575 | abort(); | |
8576 | } | |
9ee6e8bb PB |
8577 | } else { |
8578 | rm = insn & 0xf; | |
86753403 PB |
8579 | switch (op1) { |
8580 | case 0: /* strex */ | |
426f5abc | 8581 | gen_store_exclusive(s, rd, rm, 15, addr, 2); |
86753403 PB |
8582 | break; |
8583 | case 1: /* strexd */ | |
502e64fe | 8584 | gen_store_exclusive(s, rd, rm, rm + 1, addr, 3); |
86753403 PB |
8585 | break; |
8586 | case 2: /* strexb */ | |
426f5abc | 8587 | gen_store_exclusive(s, rd, rm, 15, addr, 0); |
86753403 PB |
8588 | break; |
8589 | case 3: /* strexh */ | |
426f5abc | 8590 | gen_store_exclusive(s, rd, rm, 15, addr, 1); |
86753403 PB |
8591 | break; |
8592 | default: | |
8593 | abort(); | |
8594 | } | |
9ee6e8bb | 8595 | } |
39d5492a | 8596 | tcg_temp_free_i32(addr); |
96c55295 PM |
8597 | |
8598 | if (is_lasr && is_ld) { | |
8599 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ); | |
8600 | } | |
c4869ca6 OS |
8601 | } else if ((insn & 0x00300f00) == 0) { |
8602 | /* 0bcccc_0001_0x00_xxxx_xxxx_0000_1001_xxxx | |
8603 | * - SWP, SWPB | |
8604 | */ | |
8605 | ||
cf12bce0 EC |
8606 | TCGv taddr; |
8607 | TCGMemOp opc = s->be_data; | |
8608 | ||
9ee6e8bb PB |
8609 | rm = (insn) & 0xf; |
8610 | ||
9ee6e8bb | 8611 | if (insn & (1 << 22)) { |
cf12bce0 | 8612 | opc |= MO_UB; |
9ee6e8bb | 8613 | } else { |
cf12bce0 | 8614 | opc |= MO_UL | MO_ALIGN; |
9ee6e8bb | 8615 | } |
cf12bce0 EC |
8616 | |
8617 | addr = load_reg(s, rn); | |
8618 | taddr = gen_aa32_addr(s, addr, opc); | |
7d1b0095 | 8619 | tcg_temp_free_i32(addr); |
cf12bce0 EC |
8620 | |
8621 | tmp = load_reg(s, rm); | |
8622 | tcg_gen_atomic_xchg_i32(tmp, taddr, tmp, | |
8623 | get_mem_index(s), opc); | |
8624 | tcg_temp_free(taddr); | |
8625 | store_reg(s, rd, tmp); | |
c4869ca6 OS |
8626 | } else { |
8627 | goto illegal_op; | |
9ee6e8bb PB |
8628 | } |
8629 | } | |
8630 | } else { | |
8631 | int address_offset; | |
3960c336 | 8632 | bool load = insn & (1 << 20); |
63f26fcf PM |
8633 | bool wbit = insn & (1 << 21); |
8634 | bool pbit = insn & (1 << 24); | |
3960c336 | 8635 | bool doubleword = false; |
9bb6558a PM |
8636 | ISSInfo issinfo; |
8637 | ||
9ee6e8bb PB |
8638 | /* Misc load/store */ |
8639 | rn = (insn >> 16) & 0xf; | |
8640 | rd = (insn >> 12) & 0xf; | |
3960c336 | 8641 | |
9bb6558a PM |
8642 | /* ISS not valid if writeback */ |
8643 | issinfo = (pbit & !wbit) ? rd : ISSInvalid; | |
8644 | ||
3960c336 PM |
8645 | if (!load && (sh & 2)) { |
8646 | /* doubleword */ | |
8647 | ARCH(5TE); | |
8648 | if (rd & 1) { | |
8649 | /* UNPREDICTABLE; we choose to UNDEF */ | |
8650 | goto illegal_op; | |
8651 | } | |
8652 | load = (sh & 1) == 0; | |
8653 | doubleword = true; | |
8654 | } | |
8655 | ||
b0109805 | 8656 | addr = load_reg(s, rn); |
63f26fcf | 8657 | if (pbit) { |
b0109805 | 8658 | gen_add_datah_offset(s, insn, 0, addr); |
63f26fcf | 8659 | } |
9ee6e8bb | 8660 | address_offset = 0; |
3960c336 PM |
8661 | |
8662 | if (doubleword) { | |
8663 | if (!load) { | |
9ee6e8bb | 8664 | /* store */ |
b0109805 | 8665 | tmp = load_reg(s, rd); |
12dcc321 | 8666 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
5a839c0d | 8667 | tcg_temp_free_i32(tmp); |
b0109805 PB |
8668 | tcg_gen_addi_i32(addr, addr, 4); |
8669 | tmp = load_reg(s, rd + 1); | |
12dcc321 | 8670 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
5a839c0d | 8671 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8672 | } else { |
8673 | /* load */ | |
5a839c0d | 8674 | tmp = tcg_temp_new_i32(); |
12dcc321 | 8675 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
b0109805 PB |
8676 | store_reg(s, rd, tmp); |
8677 | tcg_gen_addi_i32(addr, addr, 4); | |
5a839c0d | 8678 | tmp = tcg_temp_new_i32(); |
12dcc321 | 8679 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
9ee6e8bb | 8680 | rd++; |
9ee6e8bb PB |
8681 | } |
8682 | address_offset = -4; | |
3960c336 PM |
8683 | } else if (load) { |
8684 | /* load */ | |
8685 | tmp = tcg_temp_new_i32(); | |
8686 | switch (sh) { | |
8687 | case 1: | |
9bb6558a PM |
8688 | gen_aa32_ld16u_iss(s, tmp, addr, get_mem_index(s), |
8689 | issinfo); | |
3960c336 PM |
8690 | break; |
8691 | case 2: | |
9bb6558a PM |
8692 | gen_aa32_ld8s_iss(s, tmp, addr, get_mem_index(s), |
8693 | issinfo); | |
3960c336 PM |
8694 | break; |
8695 | default: | |
8696 | case 3: | |
9bb6558a PM |
8697 | gen_aa32_ld16s_iss(s, tmp, addr, get_mem_index(s), |
8698 | issinfo); | |
3960c336 PM |
8699 | break; |
8700 | } | |
9ee6e8bb PB |
8701 | } else { |
8702 | /* store */ | |
b0109805 | 8703 | tmp = load_reg(s, rd); |
9bb6558a | 8704 | gen_aa32_st16_iss(s, tmp, addr, get_mem_index(s), issinfo); |
5a839c0d | 8705 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8706 | } |
8707 | /* Perform base writeback before the loaded value to | |
8708 | ensure correct behavior with overlapping index registers. | |
b6af0975 | 8709 | ldrd with base writeback is undefined if the |
9ee6e8bb | 8710 | destination and index registers overlap. */ |
63f26fcf | 8711 | if (!pbit) { |
b0109805 PB |
8712 | gen_add_datah_offset(s, insn, address_offset, addr); |
8713 | store_reg(s, rn, addr); | |
63f26fcf | 8714 | } else if (wbit) { |
9ee6e8bb | 8715 | if (address_offset) |
b0109805 PB |
8716 | tcg_gen_addi_i32(addr, addr, address_offset); |
8717 | store_reg(s, rn, addr); | |
8718 | } else { | |
7d1b0095 | 8719 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
8720 | } |
8721 | if (load) { | |
8722 | /* Complete the load. */ | |
b0109805 | 8723 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8724 | } |
8725 | } | |
8726 | break; | |
8727 | case 0x4: | |
8728 | case 0x5: | |
8729 | goto do_ldst; | |
8730 | case 0x6: | |
8731 | case 0x7: | |
8732 | if (insn & (1 << 4)) { | |
8733 | ARCH(6); | |
8734 | /* Armv6 Media instructions. */ | |
8735 | rm = insn & 0xf; | |
8736 | rn = (insn >> 16) & 0xf; | |
2c0262af | 8737 | rd = (insn >> 12) & 0xf; |
9ee6e8bb PB |
8738 | rs = (insn >> 8) & 0xf; |
8739 | switch ((insn >> 23) & 3) { | |
8740 | case 0: /* Parallel add/subtract. */ | |
8741 | op1 = (insn >> 20) & 7; | |
6ddbc6e4 PB |
8742 | tmp = load_reg(s, rn); |
8743 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
8744 | sh = (insn >> 5) & 7; |
8745 | if ((op1 & 3) == 0 || sh == 5 || sh == 6) | |
8746 | goto illegal_op; | |
6ddbc6e4 | 8747 | gen_arm_parallel_addsub(op1, sh, tmp, tmp2); |
7d1b0095 | 8748 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 8749 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8750 | break; |
8751 | case 1: | |
8752 | if ((insn & 0x00700020) == 0) { | |
6c95676b | 8753 | /* Halfword pack. */ |
3670669c PB |
8754 | tmp = load_reg(s, rn); |
8755 | tmp2 = load_reg(s, rm); | |
9ee6e8bb | 8756 | shift = (insn >> 7) & 0x1f; |
3670669c PB |
8757 | if (insn & (1 << 6)) { |
8758 | /* pkhtb */ | |
22478e79 AZ |
8759 | if (shift == 0) |
8760 | shift = 31; | |
8761 | tcg_gen_sari_i32(tmp2, tmp2, shift); | |
3670669c | 8762 | tcg_gen_andi_i32(tmp, tmp, 0xffff0000); |
86831435 | 8763 | tcg_gen_ext16u_i32(tmp2, tmp2); |
3670669c PB |
8764 | } else { |
8765 | /* pkhbt */ | |
22478e79 AZ |
8766 | if (shift) |
8767 | tcg_gen_shli_i32(tmp2, tmp2, shift); | |
86831435 | 8768 | tcg_gen_ext16u_i32(tmp, tmp); |
3670669c PB |
8769 | tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000); |
8770 | } | |
8771 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
7d1b0095 | 8772 | tcg_temp_free_i32(tmp2); |
3670669c | 8773 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8774 | } else if ((insn & 0x00200020) == 0x00200000) { |
8775 | /* [us]sat */ | |
6ddbc6e4 | 8776 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
8777 | shift = (insn >> 7) & 0x1f; |
8778 | if (insn & (1 << 6)) { | |
8779 | if (shift == 0) | |
8780 | shift = 31; | |
6ddbc6e4 | 8781 | tcg_gen_sari_i32(tmp, tmp, shift); |
9ee6e8bb | 8782 | } else { |
6ddbc6e4 | 8783 | tcg_gen_shli_i32(tmp, tmp, shift); |
9ee6e8bb PB |
8784 | } |
8785 | sh = (insn >> 16) & 0x1f; | |
40d3c433 CL |
8786 | tmp2 = tcg_const_i32(sh); |
8787 | if (insn & (1 << 22)) | |
9ef39277 | 8788 | gen_helper_usat(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 8789 | else |
9ef39277 | 8790 | gen_helper_ssat(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 8791 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 8792 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8793 | } else if ((insn & 0x00300fe0) == 0x00200f20) { |
8794 | /* [us]sat16 */ | |
6ddbc6e4 | 8795 | tmp = load_reg(s, rm); |
9ee6e8bb | 8796 | sh = (insn >> 16) & 0x1f; |
40d3c433 CL |
8797 | tmp2 = tcg_const_i32(sh); |
8798 | if (insn & (1 << 22)) | |
9ef39277 | 8799 | gen_helper_usat16(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 8800 | else |
9ef39277 | 8801 | gen_helper_ssat16(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 8802 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 8803 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8804 | } else if ((insn & 0x00700fe0) == 0x00000fa0) { |
8805 | /* Select bytes. */ | |
6ddbc6e4 PB |
8806 | tmp = load_reg(s, rn); |
8807 | tmp2 = load_reg(s, rm); | |
7d1b0095 | 8808 | tmp3 = tcg_temp_new_i32(); |
0ecb72a5 | 8809 | tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 8810 | gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
7d1b0095 PM |
8811 | tcg_temp_free_i32(tmp3); |
8812 | tcg_temp_free_i32(tmp2); | |
6ddbc6e4 | 8813 | store_reg(s, rd, tmp); |
9ee6e8bb | 8814 | } else if ((insn & 0x000003e0) == 0x00000060) { |
5e3f878a | 8815 | tmp = load_reg(s, rm); |
9ee6e8bb | 8816 | shift = (insn >> 10) & 3; |
1301f322 | 8817 | /* ??? In many cases it's not necessary to do a |
9ee6e8bb PB |
8818 | rotate, a shift is sufficient. */ |
8819 | if (shift != 0) | |
f669df27 | 8820 | tcg_gen_rotri_i32(tmp, tmp, shift * 8); |
9ee6e8bb PB |
8821 | op1 = (insn >> 20) & 7; |
8822 | switch (op1) { | |
5e3f878a PB |
8823 | case 0: gen_sxtb16(tmp); break; |
8824 | case 2: gen_sxtb(tmp); break; | |
8825 | case 3: gen_sxth(tmp); break; | |
8826 | case 4: gen_uxtb16(tmp); break; | |
8827 | case 6: gen_uxtb(tmp); break; | |
8828 | case 7: gen_uxth(tmp); break; | |
9ee6e8bb PB |
8829 | default: goto illegal_op; |
8830 | } | |
8831 | if (rn != 15) { | |
5e3f878a | 8832 | tmp2 = load_reg(s, rn); |
9ee6e8bb | 8833 | if ((op1 & 3) == 0) { |
5e3f878a | 8834 | gen_add16(tmp, tmp2); |
9ee6e8bb | 8835 | } else { |
5e3f878a | 8836 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 8837 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8838 | } |
8839 | } | |
6c95676b | 8840 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8841 | } else if ((insn & 0x003f0f60) == 0x003f0f20) { |
8842 | /* rev */ | |
b0109805 | 8843 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
8844 | if (insn & (1 << 22)) { |
8845 | if (insn & (1 << 7)) { | |
b0109805 | 8846 | gen_revsh(tmp); |
9ee6e8bb PB |
8847 | } else { |
8848 | ARCH(6T2); | |
b0109805 | 8849 | gen_helper_rbit(tmp, tmp); |
9ee6e8bb PB |
8850 | } |
8851 | } else { | |
8852 | if (insn & (1 << 7)) | |
b0109805 | 8853 | gen_rev16(tmp); |
9ee6e8bb | 8854 | else |
66896cb8 | 8855 | tcg_gen_bswap32_i32(tmp, tmp); |
9ee6e8bb | 8856 | } |
b0109805 | 8857 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8858 | } else { |
8859 | goto illegal_op; | |
8860 | } | |
8861 | break; | |
8862 | case 2: /* Multiplies (Type 3). */ | |
41e9564d PM |
8863 | switch ((insn >> 20) & 0x7) { |
8864 | case 5: | |
8865 | if (((insn >> 6) ^ (insn >> 7)) & 1) { | |
8866 | /* op2 not 00x or 11x : UNDEF */ | |
8867 | goto illegal_op; | |
8868 | } | |
838fa72d AJ |
8869 | /* Signed multiply most significant [accumulate]. |
8870 | (SMMUL, SMMLA, SMMLS) */ | |
41e9564d PM |
8871 | tmp = load_reg(s, rm); |
8872 | tmp2 = load_reg(s, rs); | |
a7812ae4 | 8873 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
838fa72d | 8874 | |
955a7dd5 | 8875 | if (rd != 15) { |
838fa72d | 8876 | tmp = load_reg(s, rd); |
9ee6e8bb | 8877 | if (insn & (1 << 6)) { |
838fa72d | 8878 | tmp64 = gen_subq_msw(tmp64, tmp); |
9ee6e8bb | 8879 | } else { |
838fa72d | 8880 | tmp64 = gen_addq_msw(tmp64, tmp); |
9ee6e8bb PB |
8881 | } |
8882 | } | |
838fa72d AJ |
8883 | if (insn & (1 << 5)) { |
8884 | tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u); | |
8885 | } | |
8886 | tcg_gen_shri_i64(tmp64, tmp64, 32); | |
7d1b0095 | 8887 | tmp = tcg_temp_new_i32(); |
ecc7b3aa | 8888 | tcg_gen_extrl_i64_i32(tmp, tmp64); |
838fa72d | 8889 | tcg_temp_free_i64(tmp64); |
955a7dd5 | 8890 | store_reg(s, rn, tmp); |
41e9564d PM |
8891 | break; |
8892 | case 0: | |
8893 | case 4: | |
8894 | /* SMLAD, SMUAD, SMLSD, SMUSD, SMLALD, SMLSLD */ | |
8895 | if (insn & (1 << 7)) { | |
8896 | goto illegal_op; | |
8897 | } | |
8898 | tmp = load_reg(s, rm); | |
8899 | tmp2 = load_reg(s, rs); | |
9ee6e8bb | 8900 | if (insn & (1 << 5)) |
5e3f878a PB |
8901 | gen_swap_half(tmp2); |
8902 | gen_smul_dual(tmp, tmp2); | |
9ee6e8bb | 8903 | if (insn & (1 << 22)) { |
5e3f878a | 8904 | /* smlald, smlsld */ |
33bbd75a PC |
8905 | TCGv_i64 tmp64_2; |
8906 | ||
a7812ae4 | 8907 | tmp64 = tcg_temp_new_i64(); |
33bbd75a | 8908 | tmp64_2 = tcg_temp_new_i64(); |
a7812ae4 | 8909 | tcg_gen_ext_i32_i64(tmp64, tmp); |
33bbd75a | 8910 | tcg_gen_ext_i32_i64(tmp64_2, tmp2); |
7d1b0095 | 8911 | tcg_temp_free_i32(tmp); |
33bbd75a PC |
8912 | tcg_temp_free_i32(tmp2); |
8913 | if (insn & (1 << 6)) { | |
8914 | tcg_gen_sub_i64(tmp64, tmp64, tmp64_2); | |
8915 | } else { | |
8916 | tcg_gen_add_i64(tmp64, tmp64, tmp64_2); | |
8917 | } | |
8918 | tcg_temp_free_i64(tmp64_2); | |
a7812ae4 PB |
8919 | gen_addq(s, tmp64, rd, rn); |
8920 | gen_storeq_reg(s, rd, rn, tmp64); | |
b75263d6 | 8921 | tcg_temp_free_i64(tmp64); |
9ee6e8bb | 8922 | } else { |
5e3f878a | 8923 | /* smuad, smusd, smlad, smlsd */ |
33bbd75a PC |
8924 | if (insn & (1 << 6)) { |
8925 | /* This subtraction cannot overflow. */ | |
8926 | tcg_gen_sub_i32(tmp, tmp, tmp2); | |
8927 | } else { | |
8928 | /* This addition cannot overflow 32 bits; | |
8929 | * however it may overflow considered as a | |
8930 | * signed operation, in which case we must set | |
8931 | * the Q flag. | |
8932 | */ | |
8933 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); | |
8934 | } | |
8935 | tcg_temp_free_i32(tmp2); | |
22478e79 | 8936 | if (rd != 15) |
9ee6e8bb | 8937 | { |
22478e79 | 8938 | tmp2 = load_reg(s, rd); |
9ef39277 | 8939 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8940 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8941 | } |
22478e79 | 8942 | store_reg(s, rn, tmp); |
9ee6e8bb | 8943 | } |
41e9564d | 8944 | break; |
b8b8ea05 PM |
8945 | case 1: |
8946 | case 3: | |
8947 | /* SDIV, UDIV */ | |
7e0cf8b4 | 8948 | if (!dc_isar_feature(arm_div, s)) { |
b8b8ea05 PM |
8949 | goto illegal_op; |
8950 | } | |
8951 | if (((insn >> 5) & 7) || (rd != 15)) { | |
8952 | goto illegal_op; | |
8953 | } | |
8954 | tmp = load_reg(s, rm); | |
8955 | tmp2 = load_reg(s, rs); | |
8956 | if (insn & (1 << 21)) { | |
8957 | gen_helper_udiv(tmp, tmp, tmp2); | |
8958 | } else { | |
8959 | gen_helper_sdiv(tmp, tmp, tmp2); | |
8960 | } | |
8961 | tcg_temp_free_i32(tmp2); | |
8962 | store_reg(s, rn, tmp); | |
8963 | break; | |
41e9564d PM |
8964 | default: |
8965 | goto illegal_op; | |
9ee6e8bb PB |
8966 | } |
8967 | break; | |
8968 | case 3: | |
8969 | op1 = ((insn >> 17) & 0x38) | ((insn >> 5) & 7); | |
8970 | switch (op1) { | |
8971 | case 0: /* Unsigned sum of absolute differences. */ | |
6ddbc6e4 PB |
8972 | ARCH(6); |
8973 | tmp = load_reg(s, rm); | |
8974 | tmp2 = load_reg(s, rs); | |
8975 | gen_helper_usad8(tmp, tmp, tmp2); | |
7d1b0095 | 8976 | tcg_temp_free_i32(tmp2); |
ded9d295 AZ |
8977 | if (rd != 15) { |
8978 | tmp2 = load_reg(s, rd); | |
6ddbc6e4 | 8979 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 8980 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8981 | } |
ded9d295 | 8982 | store_reg(s, rn, tmp); |
9ee6e8bb PB |
8983 | break; |
8984 | case 0x20: case 0x24: case 0x28: case 0x2c: | |
8985 | /* Bitfield insert/clear. */ | |
8986 | ARCH(6T2); | |
8987 | shift = (insn >> 7) & 0x1f; | |
8988 | i = (insn >> 16) & 0x1f; | |
45140a57 KB |
8989 | if (i < shift) { |
8990 | /* UNPREDICTABLE; we choose to UNDEF */ | |
8991 | goto illegal_op; | |
8992 | } | |
9ee6e8bb PB |
8993 | i = i + 1 - shift; |
8994 | if (rm == 15) { | |
7d1b0095 | 8995 | tmp = tcg_temp_new_i32(); |
5e3f878a | 8996 | tcg_gen_movi_i32(tmp, 0); |
9ee6e8bb | 8997 | } else { |
5e3f878a | 8998 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
8999 | } |
9000 | if (i != 32) { | |
5e3f878a | 9001 | tmp2 = load_reg(s, rd); |
d593c48e | 9002 | tcg_gen_deposit_i32(tmp, tmp2, tmp, shift, i); |
7d1b0095 | 9003 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 9004 | } |
5e3f878a | 9005 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
9006 | break; |
9007 | case 0x12: case 0x16: case 0x1a: case 0x1e: /* sbfx */ | |
9008 | case 0x32: case 0x36: case 0x3a: case 0x3e: /* ubfx */ | |
4cc633c3 | 9009 | ARCH(6T2); |
5e3f878a | 9010 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
9011 | shift = (insn >> 7) & 0x1f; |
9012 | i = ((insn >> 16) & 0x1f) + 1; | |
9013 | if (shift + i > 32) | |
9014 | goto illegal_op; | |
9015 | if (i < 32) { | |
9016 | if (op1 & 0x20) { | |
59a71b4c | 9017 | tcg_gen_extract_i32(tmp, tmp, shift, i); |
9ee6e8bb | 9018 | } else { |
59a71b4c | 9019 | tcg_gen_sextract_i32(tmp, tmp, shift, i); |
9ee6e8bb PB |
9020 | } |
9021 | } | |
5e3f878a | 9022 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
9023 | break; |
9024 | default: | |
9025 | goto illegal_op; | |
9026 | } | |
9027 | break; | |
9028 | } | |
9029 | break; | |
9030 | } | |
9031 | do_ldst: | |
9032 | /* Check for undefined extension instructions | |
9033 | * per the ARM Bible IE: | |
9034 | * xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx | |
9035 | */ | |
9036 | sh = (0xf << 20) | (0xf << 4); | |
9037 | if (op1 == 0x7 && ((insn & sh) == sh)) | |
9038 | { | |
9039 | goto illegal_op; | |
9040 | } | |
9041 | /* load/store byte/word */ | |
9042 | rn = (insn >> 16) & 0xf; | |
9043 | rd = (insn >> 12) & 0xf; | |
b0109805 | 9044 | tmp2 = load_reg(s, rn); |
a99caa48 PM |
9045 | if ((insn & 0x01200000) == 0x00200000) { |
9046 | /* ldrt/strt */ | |
579d21cc | 9047 | i = get_a32_user_mem_index(s); |
a99caa48 PM |
9048 | } else { |
9049 | i = get_mem_index(s); | |
9050 | } | |
9ee6e8bb | 9051 | if (insn & (1 << 24)) |
b0109805 | 9052 | gen_add_data_offset(s, insn, tmp2); |
9ee6e8bb PB |
9053 | if (insn & (1 << 20)) { |
9054 | /* load */ | |
5a839c0d | 9055 | tmp = tcg_temp_new_i32(); |
9ee6e8bb | 9056 | if (insn & (1 << 22)) { |
9bb6558a | 9057 | gen_aa32_ld8u_iss(s, tmp, tmp2, i, rd); |
9ee6e8bb | 9058 | } else { |
9bb6558a | 9059 | gen_aa32_ld32u_iss(s, tmp, tmp2, i, rd); |
9ee6e8bb | 9060 | } |
9ee6e8bb PB |
9061 | } else { |
9062 | /* store */ | |
b0109805 | 9063 | tmp = load_reg(s, rd); |
5a839c0d | 9064 | if (insn & (1 << 22)) { |
9bb6558a | 9065 | gen_aa32_st8_iss(s, tmp, tmp2, i, rd); |
5a839c0d | 9066 | } else { |
9bb6558a | 9067 | gen_aa32_st32_iss(s, tmp, tmp2, i, rd); |
5a839c0d PM |
9068 | } |
9069 | tcg_temp_free_i32(tmp); | |
9ee6e8bb PB |
9070 | } |
9071 | if (!(insn & (1 << 24))) { | |
b0109805 PB |
9072 | gen_add_data_offset(s, insn, tmp2); |
9073 | store_reg(s, rn, tmp2); | |
9074 | } else if (insn & (1 << 21)) { | |
9075 | store_reg(s, rn, tmp2); | |
9076 | } else { | |
7d1b0095 | 9077 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
9078 | } |
9079 | if (insn & (1 << 20)) { | |
9080 | /* Complete the load. */ | |
7dcc1f89 | 9081 | store_reg_from_load(s, rd, tmp); |
9ee6e8bb PB |
9082 | } |
9083 | break; | |
9084 | case 0x08: | |
9085 | case 0x09: | |
9086 | { | |
da3e53dd PM |
9087 | int j, n, loaded_base; |
9088 | bool exc_return = false; | |
9089 | bool is_load = extract32(insn, 20, 1); | |
9090 | bool user = false; | |
39d5492a | 9091 | TCGv_i32 loaded_var; |
9ee6e8bb PB |
9092 | /* load/store multiple words */ |
9093 | /* XXX: store correct base if write back */ | |
9ee6e8bb | 9094 | if (insn & (1 << 22)) { |
da3e53dd | 9095 | /* LDM (user), LDM (exception return) and STM (user) */ |
9ee6e8bb PB |
9096 | if (IS_USER(s)) |
9097 | goto illegal_op; /* only usable in supervisor mode */ | |
9098 | ||
da3e53dd PM |
9099 | if (is_load && extract32(insn, 15, 1)) { |
9100 | exc_return = true; | |
9101 | } else { | |
9102 | user = true; | |
9103 | } | |
9ee6e8bb PB |
9104 | } |
9105 | rn = (insn >> 16) & 0xf; | |
b0109805 | 9106 | addr = load_reg(s, rn); |
9ee6e8bb PB |
9107 | |
9108 | /* compute total size */ | |
9109 | loaded_base = 0; | |
f764718d | 9110 | loaded_var = NULL; |
9ee6e8bb PB |
9111 | n = 0; |
9112 | for(i=0;i<16;i++) { | |
9113 | if (insn & (1 << i)) | |
9114 | n++; | |
9115 | } | |
9116 | /* XXX: test invalid n == 0 case ? */ | |
9117 | if (insn & (1 << 23)) { | |
9118 | if (insn & (1 << 24)) { | |
9119 | /* pre increment */ | |
b0109805 | 9120 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb PB |
9121 | } else { |
9122 | /* post increment */ | |
9123 | } | |
9124 | } else { | |
9125 | if (insn & (1 << 24)) { | |
9126 | /* pre decrement */ | |
b0109805 | 9127 | tcg_gen_addi_i32(addr, addr, -(n * 4)); |
9ee6e8bb PB |
9128 | } else { |
9129 | /* post decrement */ | |
9130 | if (n != 1) | |
b0109805 | 9131 | tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
9ee6e8bb PB |
9132 | } |
9133 | } | |
9134 | j = 0; | |
9135 | for(i=0;i<16;i++) { | |
9136 | if (insn & (1 << i)) { | |
da3e53dd | 9137 | if (is_load) { |
9ee6e8bb | 9138 | /* load */ |
5a839c0d | 9139 | tmp = tcg_temp_new_i32(); |
12dcc321 | 9140 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
be5e7a76 | 9141 | if (user) { |
b75263d6 | 9142 | tmp2 = tcg_const_i32(i); |
1ce94f81 | 9143 | gen_helper_set_user_reg(cpu_env, tmp2, tmp); |
b75263d6 | 9144 | tcg_temp_free_i32(tmp2); |
7d1b0095 | 9145 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 9146 | } else if (i == rn) { |
b0109805 | 9147 | loaded_var = tmp; |
9ee6e8bb | 9148 | loaded_base = 1; |
9d090d17 | 9149 | } else if (i == 15 && exc_return) { |
fb0e8e79 | 9150 | store_pc_exc_ret(s, tmp); |
9ee6e8bb | 9151 | } else { |
7dcc1f89 | 9152 | store_reg_from_load(s, i, tmp); |
9ee6e8bb PB |
9153 | } |
9154 | } else { | |
9155 | /* store */ | |
9156 | if (i == 15) { | |
9157 | /* special case: r15 = PC + 8 */ | |
9158 | val = (long)s->pc + 4; | |
7d1b0095 | 9159 | tmp = tcg_temp_new_i32(); |
b0109805 | 9160 | tcg_gen_movi_i32(tmp, val); |
9ee6e8bb | 9161 | } else if (user) { |
7d1b0095 | 9162 | tmp = tcg_temp_new_i32(); |
b75263d6 | 9163 | tmp2 = tcg_const_i32(i); |
9ef39277 | 9164 | gen_helper_get_user_reg(tmp, cpu_env, tmp2); |
b75263d6 | 9165 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 9166 | } else { |
b0109805 | 9167 | tmp = load_reg(s, i); |
9ee6e8bb | 9168 | } |
12dcc321 | 9169 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
5a839c0d | 9170 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
9171 | } |
9172 | j++; | |
9173 | /* no need to add after the last transfer */ | |
9174 | if (j != n) | |
b0109805 | 9175 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb PB |
9176 | } |
9177 | } | |
9178 | if (insn & (1 << 21)) { | |
9179 | /* write back */ | |
9180 | if (insn & (1 << 23)) { | |
9181 | if (insn & (1 << 24)) { | |
9182 | /* pre increment */ | |
9183 | } else { | |
9184 | /* post increment */ | |
b0109805 | 9185 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb PB |
9186 | } |
9187 | } else { | |
9188 | if (insn & (1 << 24)) { | |
9189 | /* pre decrement */ | |
9190 | if (n != 1) | |
b0109805 | 9191 | tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
9ee6e8bb PB |
9192 | } else { |
9193 | /* post decrement */ | |
b0109805 | 9194 | tcg_gen_addi_i32(addr, addr, -(n * 4)); |
9ee6e8bb PB |
9195 | } |
9196 | } | |
b0109805 PB |
9197 | store_reg(s, rn, addr); |
9198 | } else { | |
7d1b0095 | 9199 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
9200 | } |
9201 | if (loaded_base) { | |
b0109805 | 9202 | store_reg(s, rn, loaded_var); |
9ee6e8bb | 9203 | } |
da3e53dd | 9204 | if (exc_return) { |
9ee6e8bb | 9205 | /* Restore CPSR from SPSR. */ |
d9ba4830 | 9206 | tmp = load_cpu_field(spsr); |
e69ad9df AL |
9207 | if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { |
9208 | gen_io_start(); | |
9209 | } | |
235ea1f5 | 9210 | gen_helper_cpsr_write_eret(cpu_env, tmp); |
e69ad9df AL |
9211 | if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { |
9212 | gen_io_end(); | |
9213 | } | |
7d1b0095 | 9214 | tcg_temp_free_i32(tmp); |
b29fd33d | 9215 | /* Must exit loop to check un-masked IRQs */ |
dcba3a8d | 9216 | s->base.is_jmp = DISAS_EXIT; |
9ee6e8bb PB |
9217 | } |
9218 | } | |
9219 | break; | |
9220 | case 0xa: | |
9221 | case 0xb: | |
9222 | { | |
9223 | int32_t offset; | |
9224 | ||
9225 | /* branch (and link) */ | |
9226 | val = (int32_t)s->pc; | |
9227 | if (insn & (1 << 24)) { | |
7d1b0095 | 9228 | tmp = tcg_temp_new_i32(); |
5e3f878a PB |
9229 | tcg_gen_movi_i32(tmp, val); |
9230 | store_reg(s, 14, tmp); | |
9ee6e8bb | 9231 | } |
534df156 PM |
9232 | offset = sextract32(insn << 2, 0, 26); |
9233 | val += offset + 4; | |
9ee6e8bb PB |
9234 | gen_jmp(s, val); |
9235 | } | |
9236 | break; | |
9237 | case 0xc: | |
9238 | case 0xd: | |
9239 | case 0xe: | |
6a57f3eb WN |
9240 | if (((insn >> 8) & 0xe) == 10) { |
9241 | /* VFP. */ | |
7dcc1f89 | 9242 | if (disas_vfp_insn(s, insn)) { |
6a57f3eb WN |
9243 | goto illegal_op; |
9244 | } | |
7dcc1f89 | 9245 | } else if (disas_coproc_insn(s, insn)) { |
6a57f3eb | 9246 | /* Coprocessor. */ |
9ee6e8bb | 9247 | goto illegal_op; |
6a57f3eb | 9248 | } |
9ee6e8bb PB |
9249 | break; |
9250 | case 0xf: | |
9251 | /* swi */ | |
eaed129d | 9252 | gen_set_pc_im(s, s->pc); |
d4a2dc67 | 9253 | s->svc_imm = extract32(insn, 0, 24); |
dcba3a8d | 9254 | s->base.is_jmp = DISAS_SWI; |
9ee6e8bb PB |
9255 | break; |
9256 | default: | |
9257 | illegal_op: | |
73710361 GB |
9258 | gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(), |
9259 | default_exception_el(s)); | |
9ee6e8bb PB |
9260 | break; |
9261 | } | |
9262 | } | |
9263 | } | |
9264 | ||
296e5a0a PM |
9265 | static bool thumb_insn_is_16bit(DisasContext *s, uint32_t insn) |
9266 | { | |
9267 | /* Return true if this is a 16 bit instruction. We must be precise | |
9268 | * about this (matching the decode). We assume that s->pc still | |
9269 | * points to the first 16 bits of the insn. | |
9270 | */ | |
9271 | if ((insn >> 11) < 0x1d) { | |
9272 | /* Definitely a 16-bit instruction */ | |
9273 | return true; | |
9274 | } | |
9275 | ||
9276 | /* Top five bits 0b11101 / 0b11110 / 0b11111 : this is the | |
9277 | * first half of a 32-bit Thumb insn. Thumb-1 cores might | |
9278 | * end up actually treating this as two 16-bit insns, though, | |
9279 | * if it's half of a bl/blx pair that might span a page boundary. | |
9280 | */ | |
14120108 JS |
9281 | if (arm_dc_feature(s, ARM_FEATURE_THUMB2) || |
9282 | arm_dc_feature(s, ARM_FEATURE_M)) { | |
296e5a0a PM |
9283 | /* Thumb2 cores (including all M profile ones) always treat |
9284 | * 32-bit insns as 32-bit. | |
9285 | */ | |
9286 | return false; | |
9287 | } | |
9288 | ||
bfe7ad5b | 9289 | if ((insn >> 11) == 0x1e && s->pc - s->page_start < TARGET_PAGE_SIZE - 3) { |
296e5a0a PM |
9290 | /* 0b1111_0xxx_xxxx_xxxx : BL/BLX prefix, and the suffix |
9291 | * is not on the next page; we merge this into a 32-bit | |
9292 | * insn. | |
9293 | */ | |
9294 | return false; | |
9295 | } | |
9296 | /* 0b1110_1xxx_xxxx_xxxx : BLX suffix (or UNDEF); | |
9297 | * 0b1111_1xxx_xxxx_xxxx : BL suffix; | |
9298 | * 0b1111_0xxx_xxxx_xxxx : BL/BLX prefix on the end of a page | |
9299 | * -- handle as single 16 bit insn | |
9300 | */ | |
9301 | return true; | |
9302 | } | |
9303 | ||
9ee6e8bb PB |
9304 | /* Return true if this is a Thumb-2 logical op. */ |
9305 | static int | |
9306 | thumb2_logic_op(int op) | |
9307 | { | |
9308 | return (op < 8); | |
9309 | } | |
9310 | ||
9311 | /* Generate code for a Thumb-2 data processing operation. If CONDS is nonzero | |
9312 | then set condition code flags based on the result of the operation. | |
9313 | If SHIFTER_OUT is nonzero then set the carry flag for logical operations | |
9314 | to the high bit of T1. | |
9315 | Returns zero if the opcode is valid. */ | |
9316 | ||
9317 | static int | |
39d5492a PM |
9318 | gen_thumb2_data_op(DisasContext *s, int op, int conds, uint32_t shifter_out, |
9319 | TCGv_i32 t0, TCGv_i32 t1) | |
9ee6e8bb PB |
9320 | { |
9321 | int logic_cc; | |
9322 | ||
9323 | logic_cc = 0; | |
9324 | switch (op) { | |
9325 | case 0: /* and */ | |
396e467c | 9326 | tcg_gen_and_i32(t0, t0, t1); |
9ee6e8bb PB |
9327 | logic_cc = conds; |
9328 | break; | |
9329 | case 1: /* bic */ | |
f669df27 | 9330 | tcg_gen_andc_i32(t0, t0, t1); |
9ee6e8bb PB |
9331 | logic_cc = conds; |
9332 | break; | |
9333 | case 2: /* orr */ | |
396e467c | 9334 | tcg_gen_or_i32(t0, t0, t1); |
9ee6e8bb PB |
9335 | logic_cc = conds; |
9336 | break; | |
9337 | case 3: /* orn */ | |
29501f1b | 9338 | tcg_gen_orc_i32(t0, t0, t1); |
9ee6e8bb PB |
9339 | logic_cc = conds; |
9340 | break; | |
9341 | case 4: /* eor */ | |
396e467c | 9342 | tcg_gen_xor_i32(t0, t0, t1); |
9ee6e8bb PB |
9343 | logic_cc = conds; |
9344 | break; | |
9345 | case 8: /* add */ | |
9346 | if (conds) | |
72485ec4 | 9347 | gen_add_CC(t0, t0, t1); |
9ee6e8bb | 9348 | else |
396e467c | 9349 | tcg_gen_add_i32(t0, t0, t1); |
9ee6e8bb PB |
9350 | break; |
9351 | case 10: /* adc */ | |
9352 | if (conds) | |
49b4c31e | 9353 | gen_adc_CC(t0, t0, t1); |
9ee6e8bb | 9354 | else |
396e467c | 9355 | gen_adc(t0, t1); |
9ee6e8bb PB |
9356 | break; |
9357 | case 11: /* sbc */ | |
2de68a49 RH |
9358 | if (conds) { |
9359 | gen_sbc_CC(t0, t0, t1); | |
9360 | } else { | |
396e467c | 9361 | gen_sub_carry(t0, t0, t1); |
2de68a49 | 9362 | } |
9ee6e8bb PB |
9363 | break; |
9364 | case 13: /* sub */ | |
9365 | if (conds) | |
72485ec4 | 9366 | gen_sub_CC(t0, t0, t1); |
9ee6e8bb | 9367 | else |
396e467c | 9368 | tcg_gen_sub_i32(t0, t0, t1); |
9ee6e8bb PB |
9369 | break; |
9370 | case 14: /* rsb */ | |
9371 | if (conds) | |
72485ec4 | 9372 | gen_sub_CC(t0, t1, t0); |
9ee6e8bb | 9373 | else |
396e467c | 9374 | tcg_gen_sub_i32(t0, t1, t0); |
9ee6e8bb PB |
9375 | break; |
9376 | default: /* 5, 6, 7, 9, 12, 15. */ | |
9377 | return 1; | |
9378 | } | |
9379 | if (logic_cc) { | |
396e467c | 9380 | gen_logic_CC(t0); |
9ee6e8bb | 9381 | if (shifter_out) |
396e467c | 9382 | gen_set_CF_bit31(t1); |
9ee6e8bb PB |
9383 | } |
9384 | return 0; | |
9385 | } | |
9386 | ||
2eea841c PM |
9387 | /* Translate a 32-bit thumb instruction. */ |
9388 | static void disas_thumb2_insn(DisasContext *s, uint32_t insn) | |
9ee6e8bb | 9389 | { |
296e5a0a | 9390 | uint32_t imm, shift, offset; |
9ee6e8bb | 9391 | uint32_t rd, rn, rm, rs; |
39d5492a PM |
9392 | TCGv_i32 tmp; |
9393 | TCGv_i32 tmp2; | |
9394 | TCGv_i32 tmp3; | |
9395 | TCGv_i32 addr; | |
a7812ae4 | 9396 | TCGv_i64 tmp64; |
9ee6e8bb PB |
9397 | int op; |
9398 | int shiftop; | |
9399 | int conds; | |
9400 | int logic_cc; | |
9401 | ||
14120108 JS |
9402 | /* |
9403 | * ARMv6-M supports a limited subset of Thumb2 instructions. | |
9404 | * Other Thumb1 architectures allow only 32-bit | |
9405 | * combined BL/BLX prefix and suffix. | |
296e5a0a | 9406 | */ |
14120108 JS |
9407 | if (arm_dc_feature(s, ARM_FEATURE_M) && |
9408 | !arm_dc_feature(s, ARM_FEATURE_V7)) { | |
9409 | int i; | |
9410 | bool found = false; | |
8297cb13 JS |
9411 | static const uint32_t armv6m_insn[] = {0xf3808000 /* msr */, |
9412 | 0xf3b08040 /* dsb */, | |
9413 | 0xf3b08050 /* dmb */, | |
9414 | 0xf3b08060 /* isb */, | |
9415 | 0xf3e08000 /* mrs */, | |
9416 | 0xf000d000 /* bl */}; | |
9417 | static const uint32_t armv6m_mask[] = {0xffe0d000, | |
9418 | 0xfff0d0f0, | |
9419 | 0xfff0d0f0, | |
9420 | 0xfff0d0f0, | |
9421 | 0xffe0d000, | |
9422 | 0xf800d000}; | |
14120108 JS |
9423 | |
9424 | for (i = 0; i < ARRAY_SIZE(armv6m_insn); i++) { | |
9425 | if ((insn & armv6m_mask[i]) == armv6m_insn[i]) { | |
9426 | found = true; | |
9427 | break; | |
9428 | } | |
9429 | } | |
9430 | if (!found) { | |
9431 | goto illegal_op; | |
9432 | } | |
9433 | } else if ((insn & 0xf800e800) != 0xf000e800) { | |
9ee6e8bb PB |
9434 | ARCH(6T2); |
9435 | } | |
9436 | ||
9437 | rn = (insn >> 16) & 0xf; | |
9438 | rs = (insn >> 12) & 0xf; | |
9439 | rd = (insn >> 8) & 0xf; | |
9440 | rm = insn & 0xf; | |
9441 | switch ((insn >> 25) & 0xf) { | |
9442 | case 0: case 1: case 2: case 3: | |
9443 | /* 16-bit instructions. Should never happen. */ | |
9444 | abort(); | |
9445 | case 4: | |
9446 | if (insn & (1 << 22)) { | |
ebfe27c5 PM |
9447 | /* 0b1110_100x_x1xx_xxxx_xxxx_xxxx_xxxx_xxxx |
9448 | * - load/store doubleword, load/store exclusive, ldacq/strel, | |
5158de24 | 9449 | * table branch, TT. |
ebfe27c5 | 9450 | */ |
76eff04d PM |
9451 | if (insn == 0xe97fe97f && arm_dc_feature(s, ARM_FEATURE_M) && |
9452 | arm_dc_feature(s, ARM_FEATURE_V8)) { | |
9453 | /* 0b1110_1001_0111_1111_1110_1001_0111_111 | |
9454 | * - SG (v8M only) | |
9455 | * The bulk of the behaviour for this instruction is implemented | |
9456 | * in v7m_handle_execute_nsc(), which deals with the insn when | |
9457 | * it is executed by a CPU in non-secure state from memory | |
9458 | * which is Secure & NonSecure-Callable. | |
9459 | * Here we only need to handle the remaining cases: | |
9460 | * * in NS memory (including the "security extension not | |
9461 | * implemented" case) : NOP | |
9462 | * * in S memory but CPU already secure (clear IT bits) | |
9463 | * We know that the attribute for the memory this insn is | |
9464 | * in must match the current CPU state, because otherwise | |
9465 | * get_phys_addr_pmsav8 would have generated an exception. | |
9466 | */ | |
9467 | if (s->v8m_secure) { | |
9468 | /* Like the IT insn, we don't need to generate any code */ | |
9469 | s->condexec_cond = 0; | |
9470 | s->condexec_mask = 0; | |
9471 | } | |
9472 | } else if (insn & 0x01200000) { | |
ebfe27c5 PM |
9473 | /* 0b1110_1000_x11x_xxxx_xxxx_xxxx_xxxx_xxxx |
9474 | * - load/store dual (post-indexed) | |
9475 | * 0b1111_1001_x10x_xxxx_xxxx_xxxx_xxxx_xxxx | |
9476 | * - load/store dual (literal and immediate) | |
9477 | * 0b1111_1001_x11x_xxxx_xxxx_xxxx_xxxx_xxxx | |
9478 | * - load/store dual (pre-indexed) | |
9479 | */ | |
910d7692 PM |
9480 | bool wback = extract32(insn, 21, 1); |
9481 | ||
9ee6e8bb | 9482 | if (rn == 15) { |
ebfe27c5 PM |
9483 | if (insn & (1 << 21)) { |
9484 | /* UNPREDICTABLE */ | |
9485 | goto illegal_op; | |
9486 | } | |
7d1b0095 | 9487 | addr = tcg_temp_new_i32(); |
b0109805 | 9488 | tcg_gen_movi_i32(addr, s->pc & ~3); |
9ee6e8bb | 9489 | } else { |
b0109805 | 9490 | addr = load_reg(s, rn); |
9ee6e8bb PB |
9491 | } |
9492 | offset = (insn & 0xff) * 4; | |
910d7692 | 9493 | if ((insn & (1 << 23)) == 0) { |
9ee6e8bb | 9494 | offset = -offset; |
910d7692 PM |
9495 | } |
9496 | ||
9497 | if (s->v8m_stackcheck && rn == 13 && wback) { | |
9498 | /* | |
9499 | * Here 'addr' is the current SP; if offset is +ve we're | |
9500 | * moving SP up, else down. It is UNKNOWN whether the limit | |
9501 | * check triggers when SP starts below the limit and ends | |
9502 | * up above it; check whichever of the current and final | |
9503 | * SP is lower, so QEMU will trigger in that situation. | |
9504 | */ | |
9505 | if ((int32_t)offset < 0) { | |
9506 | TCGv_i32 newsp = tcg_temp_new_i32(); | |
9507 | ||
9508 | tcg_gen_addi_i32(newsp, addr, offset); | |
9509 | gen_helper_v8m_stackcheck(cpu_env, newsp); | |
9510 | tcg_temp_free_i32(newsp); | |
9511 | } else { | |
9512 | gen_helper_v8m_stackcheck(cpu_env, addr); | |
9513 | } | |
9514 | } | |
9515 | ||
9ee6e8bb | 9516 | if (insn & (1 << 24)) { |
b0109805 | 9517 | tcg_gen_addi_i32(addr, addr, offset); |
9ee6e8bb PB |
9518 | offset = 0; |
9519 | } | |
9520 | if (insn & (1 << 20)) { | |
9521 | /* ldrd */ | |
e2592fad | 9522 | tmp = tcg_temp_new_i32(); |
12dcc321 | 9523 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
b0109805 PB |
9524 | store_reg(s, rs, tmp); |
9525 | tcg_gen_addi_i32(addr, addr, 4); | |
e2592fad | 9526 | tmp = tcg_temp_new_i32(); |
12dcc321 | 9527 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
b0109805 | 9528 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
9529 | } else { |
9530 | /* strd */ | |
b0109805 | 9531 | tmp = load_reg(s, rs); |
12dcc321 | 9532 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
e2592fad | 9533 | tcg_temp_free_i32(tmp); |
b0109805 PB |
9534 | tcg_gen_addi_i32(addr, addr, 4); |
9535 | tmp = load_reg(s, rd); | |
12dcc321 | 9536 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
e2592fad | 9537 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 9538 | } |
910d7692 | 9539 | if (wback) { |
9ee6e8bb | 9540 | /* Base writeback. */ |
b0109805 PB |
9541 | tcg_gen_addi_i32(addr, addr, offset - 4); |
9542 | store_reg(s, rn, addr); | |
9543 | } else { | |
7d1b0095 | 9544 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
9545 | } |
9546 | } else if ((insn & (1 << 23)) == 0) { | |
ebfe27c5 PM |
9547 | /* 0b1110_1000_010x_xxxx_xxxx_xxxx_xxxx_xxxx |
9548 | * - load/store exclusive word | |
5158de24 | 9549 | * - TT (v8M only) |
ebfe27c5 PM |
9550 | */ |
9551 | if (rs == 15) { | |
5158de24 PM |
9552 | if (!(insn & (1 << 20)) && |
9553 | arm_dc_feature(s, ARM_FEATURE_M) && | |
9554 | arm_dc_feature(s, ARM_FEATURE_V8)) { | |
9555 | /* 0b1110_1000_0100_xxxx_1111_xxxx_xxxx_xxxx | |
9556 | * - TT (v8M only) | |
9557 | */ | |
9558 | bool alt = insn & (1 << 7); | |
9559 | TCGv_i32 addr, op, ttresp; | |
9560 | ||
9561 | if ((insn & 0x3f) || rd == 13 || rd == 15 || rn == 15) { | |
9562 | /* we UNDEF for these UNPREDICTABLE cases */ | |
9563 | goto illegal_op; | |
9564 | } | |
9565 | ||
9566 | if (alt && !s->v8m_secure) { | |
9567 | goto illegal_op; | |
9568 | } | |
9569 | ||
9570 | addr = load_reg(s, rn); | |
9571 | op = tcg_const_i32(extract32(insn, 6, 2)); | |
9572 | ttresp = tcg_temp_new_i32(); | |
9573 | gen_helper_v7m_tt(ttresp, cpu_env, addr, op); | |
9574 | tcg_temp_free_i32(addr); | |
9575 | tcg_temp_free_i32(op); | |
9576 | store_reg(s, rd, ttresp); | |
384c6c03 | 9577 | break; |
5158de24 | 9578 | } |
ebfe27c5 PM |
9579 | goto illegal_op; |
9580 | } | |
39d5492a | 9581 | addr = tcg_temp_local_new_i32(); |
98a46317 | 9582 | load_reg_var(s, addr, rn); |
426f5abc | 9583 | tcg_gen_addi_i32(addr, addr, (insn & 0xff) << 2); |
2c0262af | 9584 | if (insn & (1 << 20)) { |
426f5abc | 9585 | gen_load_exclusive(s, rs, 15, addr, 2); |
9ee6e8bb | 9586 | } else { |
426f5abc | 9587 | gen_store_exclusive(s, rd, rs, 15, addr, 2); |
9ee6e8bb | 9588 | } |
39d5492a | 9589 | tcg_temp_free_i32(addr); |
2359bf80 | 9590 | } else if ((insn & (7 << 5)) == 0) { |
9ee6e8bb PB |
9591 | /* Table Branch. */ |
9592 | if (rn == 15) { | |
7d1b0095 | 9593 | addr = tcg_temp_new_i32(); |
b0109805 | 9594 | tcg_gen_movi_i32(addr, s->pc); |
9ee6e8bb | 9595 | } else { |
b0109805 | 9596 | addr = load_reg(s, rn); |
9ee6e8bb | 9597 | } |
b26eefb6 | 9598 | tmp = load_reg(s, rm); |
b0109805 | 9599 | tcg_gen_add_i32(addr, addr, tmp); |
9ee6e8bb PB |
9600 | if (insn & (1 << 4)) { |
9601 | /* tbh */ | |
b0109805 | 9602 | tcg_gen_add_i32(addr, addr, tmp); |
7d1b0095 | 9603 | tcg_temp_free_i32(tmp); |
e2592fad | 9604 | tmp = tcg_temp_new_i32(); |
12dcc321 | 9605 | gen_aa32_ld16u(s, tmp, addr, get_mem_index(s)); |
9ee6e8bb | 9606 | } else { /* tbb */ |
7d1b0095 | 9607 | tcg_temp_free_i32(tmp); |
e2592fad | 9608 | tmp = tcg_temp_new_i32(); |
12dcc321 | 9609 | gen_aa32_ld8u(s, tmp, addr, get_mem_index(s)); |
9ee6e8bb | 9610 | } |
7d1b0095 | 9611 | tcg_temp_free_i32(addr); |
b0109805 PB |
9612 | tcg_gen_shli_i32(tmp, tmp, 1); |
9613 | tcg_gen_addi_i32(tmp, tmp, s->pc); | |
9614 | store_reg(s, 15, tmp); | |
9ee6e8bb | 9615 | } else { |
96c55295 PM |
9616 | bool is_lasr = false; |
9617 | bool is_ld = extract32(insn, 20, 1); | |
2359bf80 | 9618 | int op2 = (insn >> 6) & 0x3; |
9ee6e8bb | 9619 | op = (insn >> 4) & 0x3; |
2359bf80 MR |
9620 | switch (op2) { |
9621 | case 0: | |
426f5abc | 9622 | goto illegal_op; |
2359bf80 MR |
9623 | case 1: |
9624 | /* Load/store exclusive byte/halfword/doubleword */ | |
9625 | if (op == 2) { | |
9626 | goto illegal_op; | |
9627 | } | |
9628 | ARCH(7); | |
9629 | break; | |
9630 | case 2: | |
9631 | /* Load-acquire/store-release */ | |
9632 | if (op == 3) { | |
9633 | goto illegal_op; | |
9634 | } | |
9635 | /* Fall through */ | |
9636 | case 3: | |
9637 | /* Load-acquire/store-release exclusive */ | |
9638 | ARCH(8); | |
96c55295 | 9639 | is_lasr = true; |
2359bf80 | 9640 | break; |
426f5abc | 9641 | } |
96c55295 PM |
9642 | |
9643 | if (is_lasr && !is_ld) { | |
9644 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL); | |
9645 | } | |
9646 | ||
39d5492a | 9647 | addr = tcg_temp_local_new_i32(); |
98a46317 | 9648 | load_reg_var(s, addr, rn); |
2359bf80 | 9649 | if (!(op2 & 1)) { |
96c55295 | 9650 | if (is_ld) { |
2359bf80 MR |
9651 | tmp = tcg_temp_new_i32(); |
9652 | switch (op) { | |
9653 | case 0: /* ldab */ | |
9bb6558a PM |
9654 | gen_aa32_ld8u_iss(s, tmp, addr, get_mem_index(s), |
9655 | rs | ISSIsAcqRel); | |
2359bf80 MR |
9656 | break; |
9657 | case 1: /* ldah */ | |
9bb6558a PM |
9658 | gen_aa32_ld16u_iss(s, tmp, addr, get_mem_index(s), |
9659 | rs | ISSIsAcqRel); | |
2359bf80 MR |
9660 | break; |
9661 | case 2: /* lda */ | |
9bb6558a PM |
9662 | gen_aa32_ld32u_iss(s, tmp, addr, get_mem_index(s), |
9663 | rs | ISSIsAcqRel); | |
2359bf80 MR |
9664 | break; |
9665 | default: | |
9666 | abort(); | |
9667 | } | |
9668 | store_reg(s, rs, tmp); | |
9669 | } else { | |
9670 | tmp = load_reg(s, rs); | |
9671 | switch (op) { | |
9672 | case 0: /* stlb */ | |
9bb6558a PM |
9673 | gen_aa32_st8_iss(s, tmp, addr, get_mem_index(s), |
9674 | rs | ISSIsAcqRel); | |
2359bf80 MR |
9675 | break; |
9676 | case 1: /* stlh */ | |
9bb6558a PM |
9677 | gen_aa32_st16_iss(s, tmp, addr, get_mem_index(s), |
9678 | rs | ISSIsAcqRel); | |
2359bf80 MR |
9679 | break; |
9680 | case 2: /* stl */ | |
9bb6558a PM |
9681 | gen_aa32_st32_iss(s, tmp, addr, get_mem_index(s), |
9682 | rs | ISSIsAcqRel); | |
2359bf80 MR |
9683 | break; |
9684 | default: | |
9685 | abort(); | |
9686 | } | |
9687 | tcg_temp_free_i32(tmp); | |
9688 | } | |
96c55295 | 9689 | } else if (is_ld) { |
426f5abc | 9690 | gen_load_exclusive(s, rs, rd, addr, op); |
9ee6e8bb | 9691 | } else { |
426f5abc | 9692 | gen_store_exclusive(s, rm, rs, rd, addr, op); |
9ee6e8bb | 9693 | } |
39d5492a | 9694 | tcg_temp_free_i32(addr); |
96c55295 PM |
9695 | |
9696 | if (is_lasr && is_ld) { | |
9697 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ); | |
9698 | } | |
9ee6e8bb PB |
9699 | } |
9700 | } else { | |
9701 | /* Load/store multiple, RFE, SRS. */ | |
9702 | if (((insn >> 23) & 1) == ((insn >> 24) & 1)) { | |
00115976 | 9703 | /* RFE, SRS: not available in user mode or on M profile */ |
b53d8923 | 9704 | if (IS_USER(s) || arm_dc_feature(s, ARM_FEATURE_M)) { |
9ee6e8bb | 9705 | goto illegal_op; |
00115976 | 9706 | } |
9ee6e8bb PB |
9707 | if (insn & (1 << 20)) { |
9708 | /* rfe */ | |
b0109805 PB |
9709 | addr = load_reg(s, rn); |
9710 | if ((insn & (1 << 24)) == 0) | |
9711 | tcg_gen_addi_i32(addr, addr, -8); | |
9712 | /* Load PC into tmp and CPSR into tmp2. */ | |
e2592fad | 9713 | tmp = tcg_temp_new_i32(); |
12dcc321 | 9714 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
b0109805 | 9715 | tcg_gen_addi_i32(addr, addr, 4); |
e2592fad | 9716 | tmp2 = tcg_temp_new_i32(); |
12dcc321 | 9717 | gen_aa32_ld32u(s, tmp2, addr, get_mem_index(s)); |
9ee6e8bb PB |
9718 | if (insn & (1 << 21)) { |
9719 | /* Base writeback. */ | |
b0109805 PB |
9720 | if (insn & (1 << 24)) { |
9721 | tcg_gen_addi_i32(addr, addr, 4); | |
9722 | } else { | |
9723 | tcg_gen_addi_i32(addr, addr, -4); | |
9724 | } | |
9725 | store_reg(s, rn, addr); | |
9726 | } else { | |
7d1b0095 | 9727 | tcg_temp_free_i32(addr); |
9ee6e8bb | 9728 | } |
b0109805 | 9729 | gen_rfe(s, tmp, tmp2); |
9ee6e8bb PB |
9730 | } else { |
9731 | /* srs */ | |
81465888 PM |
9732 | gen_srs(s, (insn & 0x1f), (insn & (1 << 24)) ? 1 : 2, |
9733 | insn & (1 << 21)); | |
9ee6e8bb PB |
9734 | } |
9735 | } else { | |
5856d44e | 9736 | int i, loaded_base = 0; |
39d5492a | 9737 | TCGv_i32 loaded_var; |
7c0ed88e | 9738 | bool wback = extract32(insn, 21, 1); |
9ee6e8bb | 9739 | /* Load/store multiple. */ |
b0109805 | 9740 | addr = load_reg(s, rn); |
9ee6e8bb PB |
9741 | offset = 0; |
9742 | for (i = 0; i < 16; i++) { | |
9743 | if (insn & (1 << i)) | |
9744 | offset += 4; | |
9745 | } | |
7c0ed88e | 9746 | |
9ee6e8bb | 9747 | if (insn & (1 << 24)) { |
b0109805 | 9748 | tcg_gen_addi_i32(addr, addr, -offset); |
9ee6e8bb PB |
9749 | } |
9750 | ||
7c0ed88e PM |
9751 | if (s->v8m_stackcheck && rn == 13 && wback) { |
9752 | /* | |
9753 | * If the writeback is incrementing SP rather than | |
9754 | * decrementing it, and the initial SP is below the | |
9755 | * stack limit but the final written-back SP would | |
9756 | * be above, then then we must not perform any memory | |
9757 | * accesses, but it is IMPDEF whether we generate | |
9758 | * an exception. We choose to do so in this case. | |
9759 | * At this point 'addr' is the lowest address, so | |
9760 | * either the original SP (if incrementing) or our | |
9761 | * final SP (if decrementing), so that's what we check. | |
9762 | */ | |
9763 | gen_helper_v8m_stackcheck(cpu_env, addr); | |
9764 | } | |
9765 | ||
f764718d | 9766 | loaded_var = NULL; |
9ee6e8bb PB |
9767 | for (i = 0; i < 16; i++) { |
9768 | if ((insn & (1 << i)) == 0) | |
9769 | continue; | |
9770 | if (insn & (1 << 20)) { | |
9771 | /* Load. */ | |
e2592fad | 9772 | tmp = tcg_temp_new_i32(); |
12dcc321 | 9773 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
9ee6e8bb | 9774 | if (i == 15) { |
3bb8a96f | 9775 | gen_bx_excret(s, tmp); |
5856d44e YO |
9776 | } else if (i == rn) { |
9777 | loaded_var = tmp; | |
9778 | loaded_base = 1; | |
9ee6e8bb | 9779 | } else { |
b0109805 | 9780 | store_reg(s, i, tmp); |
9ee6e8bb PB |
9781 | } |
9782 | } else { | |
9783 | /* Store. */ | |
b0109805 | 9784 | tmp = load_reg(s, i); |
12dcc321 | 9785 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
e2592fad | 9786 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 9787 | } |
b0109805 | 9788 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb | 9789 | } |
5856d44e YO |
9790 | if (loaded_base) { |
9791 | store_reg(s, rn, loaded_var); | |
9792 | } | |
7c0ed88e | 9793 | if (wback) { |
9ee6e8bb PB |
9794 | /* Base register writeback. */ |
9795 | if (insn & (1 << 24)) { | |
b0109805 | 9796 | tcg_gen_addi_i32(addr, addr, -offset); |
9ee6e8bb PB |
9797 | } |
9798 | /* Fault if writeback register is in register list. */ | |
9799 | if (insn & (1 << rn)) | |
9800 | goto illegal_op; | |
b0109805 PB |
9801 | store_reg(s, rn, addr); |
9802 | } else { | |
7d1b0095 | 9803 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
9804 | } |
9805 | } | |
9806 | } | |
9807 | break; | |
2af9ab77 JB |
9808 | case 5: |
9809 | ||
9ee6e8bb | 9810 | op = (insn >> 21) & 0xf; |
2af9ab77 | 9811 | if (op == 6) { |
62b44f05 AR |
9812 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { |
9813 | goto illegal_op; | |
9814 | } | |
2af9ab77 JB |
9815 | /* Halfword pack. */ |
9816 | tmp = load_reg(s, rn); | |
9817 | tmp2 = load_reg(s, rm); | |
9818 | shift = ((insn >> 10) & 0x1c) | ((insn >> 6) & 0x3); | |
9819 | if (insn & (1 << 5)) { | |
9820 | /* pkhtb */ | |
9821 | if (shift == 0) | |
9822 | shift = 31; | |
9823 | tcg_gen_sari_i32(tmp2, tmp2, shift); | |
9824 | tcg_gen_andi_i32(tmp, tmp, 0xffff0000); | |
9825 | tcg_gen_ext16u_i32(tmp2, tmp2); | |
9826 | } else { | |
9827 | /* pkhbt */ | |
9828 | if (shift) | |
9829 | tcg_gen_shli_i32(tmp2, tmp2, shift); | |
9830 | tcg_gen_ext16u_i32(tmp, tmp); | |
9831 | tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000); | |
9832 | } | |
9833 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
7d1b0095 | 9834 | tcg_temp_free_i32(tmp2); |
3174f8e9 FN |
9835 | store_reg(s, rd, tmp); |
9836 | } else { | |
2af9ab77 JB |
9837 | /* Data processing register constant shift. */ |
9838 | if (rn == 15) { | |
7d1b0095 | 9839 | tmp = tcg_temp_new_i32(); |
2af9ab77 JB |
9840 | tcg_gen_movi_i32(tmp, 0); |
9841 | } else { | |
9842 | tmp = load_reg(s, rn); | |
9843 | } | |
9844 | tmp2 = load_reg(s, rm); | |
9845 | ||
9846 | shiftop = (insn >> 4) & 3; | |
9847 | shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); | |
9848 | conds = (insn & (1 << 20)) != 0; | |
9849 | logic_cc = (conds && thumb2_logic_op(op)); | |
9850 | gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); | |
9851 | if (gen_thumb2_data_op(s, op, conds, 0, tmp, tmp2)) | |
9852 | goto illegal_op; | |
7d1b0095 | 9853 | tcg_temp_free_i32(tmp2); |
55203189 PM |
9854 | if (rd == 13 && |
9855 | ((op == 2 && rn == 15) || | |
9856 | (op == 8 && rn == 13) || | |
9857 | (op == 13 && rn == 13))) { | |
9858 | /* MOV SP, ... or ADD SP, SP, ... or SUB SP, SP, ... */ | |
9859 | store_sp_checked(s, tmp); | |
9860 | } else if (rd != 15) { | |
2af9ab77 JB |
9861 | store_reg(s, rd, tmp); |
9862 | } else { | |
7d1b0095 | 9863 | tcg_temp_free_i32(tmp); |
2af9ab77 | 9864 | } |
3174f8e9 | 9865 | } |
9ee6e8bb PB |
9866 | break; |
9867 | case 13: /* Misc data processing. */ | |
9868 | op = ((insn >> 22) & 6) | ((insn >> 7) & 1); | |
9869 | if (op < 4 && (insn & 0xf000) != 0xf000) | |
9870 | goto illegal_op; | |
9871 | switch (op) { | |
9872 | case 0: /* Register controlled shift. */ | |
8984bd2e PB |
9873 | tmp = load_reg(s, rn); |
9874 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
9875 | if ((insn & 0x70) != 0) |
9876 | goto illegal_op; | |
a2d12f0f PM |
9877 | /* |
9878 | * 0b1111_1010_0xxx_xxxx_1111_xxxx_0000_xxxx: | |
9879 | * - MOV, MOVS (register-shifted register), flagsetting | |
9880 | */ | |
9ee6e8bb | 9881 | op = (insn >> 21) & 3; |
8984bd2e PB |
9882 | logic_cc = (insn & (1 << 20)) != 0; |
9883 | gen_arm_shift_reg(tmp, op, tmp2, logic_cc); | |
9884 | if (logic_cc) | |
9885 | gen_logic_CC(tmp); | |
bedb8a6b | 9886 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
9887 | break; |
9888 | case 1: /* Sign/zero extend. */ | |
62b44f05 AR |
9889 | op = (insn >> 20) & 7; |
9890 | switch (op) { | |
9891 | case 0: /* SXTAH, SXTH */ | |
9892 | case 1: /* UXTAH, UXTH */ | |
9893 | case 4: /* SXTAB, SXTB */ | |
9894 | case 5: /* UXTAB, UXTB */ | |
9895 | break; | |
9896 | case 2: /* SXTAB16, SXTB16 */ | |
9897 | case 3: /* UXTAB16, UXTB16 */ | |
9898 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { | |
9899 | goto illegal_op; | |
9900 | } | |
9901 | break; | |
9902 | default: | |
9903 | goto illegal_op; | |
9904 | } | |
9905 | if (rn != 15) { | |
9906 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { | |
9907 | goto illegal_op; | |
9908 | } | |
9909 | } | |
5e3f878a | 9910 | tmp = load_reg(s, rm); |
9ee6e8bb | 9911 | shift = (insn >> 4) & 3; |
1301f322 | 9912 | /* ??? In many cases it's not necessary to do a |
9ee6e8bb PB |
9913 | rotate, a shift is sufficient. */ |
9914 | if (shift != 0) | |
f669df27 | 9915 | tcg_gen_rotri_i32(tmp, tmp, shift * 8); |
9ee6e8bb PB |
9916 | op = (insn >> 20) & 7; |
9917 | switch (op) { | |
5e3f878a PB |
9918 | case 0: gen_sxth(tmp); break; |
9919 | case 1: gen_uxth(tmp); break; | |
9920 | case 2: gen_sxtb16(tmp); break; | |
9921 | case 3: gen_uxtb16(tmp); break; | |
9922 | case 4: gen_sxtb(tmp); break; | |
9923 | case 5: gen_uxtb(tmp); break; | |
62b44f05 AR |
9924 | default: |
9925 | g_assert_not_reached(); | |
9ee6e8bb PB |
9926 | } |
9927 | if (rn != 15) { | |
5e3f878a | 9928 | tmp2 = load_reg(s, rn); |
9ee6e8bb | 9929 | if ((op >> 1) == 1) { |
5e3f878a | 9930 | gen_add16(tmp, tmp2); |
9ee6e8bb | 9931 | } else { |
5e3f878a | 9932 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 9933 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
9934 | } |
9935 | } | |
5e3f878a | 9936 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
9937 | break; |
9938 | case 2: /* SIMD add/subtract. */ | |
62b44f05 AR |
9939 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { |
9940 | goto illegal_op; | |
9941 | } | |
9ee6e8bb PB |
9942 | op = (insn >> 20) & 7; |
9943 | shift = (insn >> 4) & 7; | |
9944 | if ((op & 3) == 3 || (shift & 3) == 3) | |
9945 | goto illegal_op; | |
6ddbc6e4 PB |
9946 | tmp = load_reg(s, rn); |
9947 | tmp2 = load_reg(s, rm); | |
9948 | gen_thumb2_parallel_addsub(op, shift, tmp, tmp2); | |
7d1b0095 | 9949 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 9950 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
9951 | break; |
9952 | case 3: /* Other data processing. */ | |
9953 | op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7); | |
9954 | if (op < 4) { | |
9955 | /* Saturating add/subtract. */ | |
62b44f05 AR |
9956 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { |
9957 | goto illegal_op; | |
9958 | } | |
d9ba4830 PB |
9959 | tmp = load_reg(s, rn); |
9960 | tmp2 = load_reg(s, rm); | |
9ee6e8bb | 9961 | if (op & 1) |
9ef39277 | 9962 | gen_helper_double_saturate(tmp, cpu_env, tmp); |
4809c612 | 9963 | if (op & 2) |
9ef39277 | 9964 | gen_helper_sub_saturate(tmp, cpu_env, tmp2, tmp); |
9ee6e8bb | 9965 | else |
9ef39277 | 9966 | gen_helper_add_saturate(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 9967 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 9968 | } else { |
62b44f05 AR |
9969 | switch (op) { |
9970 | case 0x0a: /* rbit */ | |
9971 | case 0x08: /* rev */ | |
9972 | case 0x09: /* rev16 */ | |
9973 | case 0x0b: /* revsh */ | |
9974 | case 0x18: /* clz */ | |
9975 | break; | |
9976 | case 0x10: /* sel */ | |
9977 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { | |
9978 | goto illegal_op; | |
9979 | } | |
9980 | break; | |
9981 | case 0x20: /* crc32/crc32c */ | |
9982 | case 0x21: | |
9983 | case 0x22: | |
9984 | case 0x28: | |
9985 | case 0x29: | |
9986 | case 0x2a: | |
962fcbf2 | 9987 | if (!dc_isar_feature(aa32_crc32, s)) { |
62b44f05 AR |
9988 | goto illegal_op; |
9989 | } | |
9990 | break; | |
9991 | default: | |
9992 | goto illegal_op; | |
9993 | } | |
d9ba4830 | 9994 | tmp = load_reg(s, rn); |
9ee6e8bb PB |
9995 | switch (op) { |
9996 | case 0x0a: /* rbit */ | |
d9ba4830 | 9997 | gen_helper_rbit(tmp, tmp); |
9ee6e8bb PB |
9998 | break; |
9999 | case 0x08: /* rev */ | |
66896cb8 | 10000 | tcg_gen_bswap32_i32(tmp, tmp); |
9ee6e8bb PB |
10001 | break; |
10002 | case 0x09: /* rev16 */ | |
d9ba4830 | 10003 | gen_rev16(tmp); |
9ee6e8bb PB |
10004 | break; |
10005 | case 0x0b: /* revsh */ | |
d9ba4830 | 10006 | gen_revsh(tmp); |
9ee6e8bb PB |
10007 | break; |
10008 | case 0x10: /* sel */ | |
d9ba4830 | 10009 | tmp2 = load_reg(s, rm); |
7d1b0095 | 10010 | tmp3 = tcg_temp_new_i32(); |
0ecb72a5 | 10011 | tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUARMState, GE)); |
d9ba4830 | 10012 | gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
7d1b0095 PM |
10013 | tcg_temp_free_i32(tmp3); |
10014 | tcg_temp_free_i32(tmp2); | |
9ee6e8bb PB |
10015 | break; |
10016 | case 0x18: /* clz */ | |
7539a012 | 10017 | tcg_gen_clzi_i32(tmp, tmp, 32); |
9ee6e8bb | 10018 | break; |
eb0ecd5a WN |
10019 | case 0x20: |
10020 | case 0x21: | |
10021 | case 0x22: | |
10022 | case 0x28: | |
10023 | case 0x29: | |
10024 | case 0x2a: | |
10025 | { | |
10026 | /* crc32/crc32c */ | |
10027 | uint32_t sz = op & 0x3; | |
10028 | uint32_t c = op & 0x8; | |
10029 | ||
eb0ecd5a | 10030 | tmp2 = load_reg(s, rm); |
aa633469 PM |
10031 | if (sz == 0) { |
10032 | tcg_gen_andi_i32(tmp2, tmp2, 0xff); | |
10033 | } else if (sz == 1) { | |
10034 | tcg_gen_andi_i32(tmp2, tmp2, 0xffff); | |
10035 | } | |
eb0ecd5a WN |
10036 | tmp3 = tcg_const_i32(1 << sz); |
10037 | if (c) { | |
10038 | gen_helper_crc32c(tmp, tmp, tmp2, tmp3); | |
10039 | } else { | |
10040 | gen_helper_crc32(tmp, tmp, tmp2, tmp3); | |
10041 | } | |
10042 | tcg_temp_free_i32(tmp2); | |
10043 | tcg_temp_free_i32(tmp3); | |
10044 | break; | |
10045 | } | |
9ee6e8bb | 10046 | default: |
62b44f05 | 10047 | g_assert_not_reached(); |
9ee6e8bb PB |
10048 | } |
10049 | } | |
d9ba4830 | 10050 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
10051 | break; |
10052 | case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */ | |
62b44f05 AR |
10053 | switch ((insn >> 20) & 7) { |
10054 | case 0: /* 32 x 32 -> 32 */ | |
10055 | case 7: /* Unsigned sum of absolute differences. */ | |
10056 | break; | |
10057 | case 1: /* 16 x 16 -> 32 */ | |
10058 | case 2: /* Dual multiply add. */ | |
10059 | case 3: /* 32 * 16 -> 32msb */ | |
10060 | case 4: /* Dual multiply subtract. */ | |
10061 | case 5: case 6: /* 32 * 32 -> 32msb (SMMUL, SMMLA, SMMLS) */ | |
10062 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { | |
10063 | goto illegal_op; | |
10064 | } | |
10065 | break; | |
10066 | } | |
9ee6e8bb | 10067 | op = (insn >> 4) & 0xf; |
d9ba4830 PB |
10068 | tmp = load_reg(s, rn); |
10069 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
10070 | switch ((insn >> 20) & 7) { |
10071 | case 0: /* 32 x 32 -> 32 */ | |
d9ba4830 | 10072 | tcg_gen_mul_i32(tmp, tmp, tmp2); |
7d1b0095 | 10073 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10074 | if (rs != 15) { |
d9ba4830 | 10075 | tmp2 = load_reg(s, rs); |
9ee6e8bb | 10076 | if (op) |
d9ba4830 | 10077 | tcg_gen_sub_i32(tmp, tmp2, tmp); |
9ee6e8bb | 10078 | else |
d9ba4830 | 10079 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 10080 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10081 | } |
9ee6e8bb PB |
10082 | break; |
10083 | case 1: /* 16 x 16 -> 32 */ | |
d9ba4830 | 10084 | gen_mulxy(tmp, tmp2, op & 2, op & 1); |
7d1b0095 | 10085 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10086 | if (rs != 15) { |
d9ba4830 | 10087 | tmp2 = load_reg(s, rs); |
9ef39277 | 10088 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 10089 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10090 | } |
9ee6e8bb PB |
10091 | break; |
10092 | case 2: /* Dual multiply add. */ | |
10093 | case 4: /* Dual multiply subtract. */ | |
10094 | if (op) | |
d9ba4830 PB |
10095 | gen_swap_half(tmp2); |
10096 | gen_smul_dual(tmp, tmp2); | |
9ee6e8bb | 10097 | if (insn & (1 << 22)) { |
e1d177b9 | 10098 | /* This subtraction cannot overflow. */ |
d9ba4830 | 10099 | tcg_gen_sub_i32(tmp, tmp, tmp2); |
9ee6e8bb | 10100 | } else { |
e1d177b9 PM |
10101 | /* This addition cannot overflow 32 bits; |
10102 | * however it may overflow considered as a signed | |
10103 | * operation, in which case we must set the Q flag. | |
10104 | */ | |
9ef39277 | 10105 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 10106 | } |
7d1b0095 | 10107 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
10108 | if (rs != 15) |
10109 | { | |
d9ba4830 | 10110 | tmp2 = load_reg(s, rs); |
9ef39277 | 10111 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 10112 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10113 | } |
9ee6e8bb PB |
10114 | break; |
10115 | case 3: /* 32 * 16 -> 32msb */ | |
10116 | if (op) | |
d9ba4830 | 10117 | tcg_gen_sari_i32(tmp2, tmp2, 16); |
9ee6e8bb | 10118 | else |
d9ba4830 | 10119 | gen_sxth(tmp2); |
a7812ae4 PB |
10120 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
10121 | tcg_gen_shri_i64(tmp64, tmp64, 16); | |
7d1b0095 | 10122 | tmp = tcg_temp_new_i32(); |
ecc7b3aa | 10123 | tcg_gen_extrl_i64_i32(tmp, tmp64); |
b75263d6 | 10124 | tcg_temp_free_i64(tmp64); |
9ee6e8bb PB |
10125 | if (rs != 15) |
10126 | { | |
d9ba4830 | 10127 | tmp2 = load_reg(s, rs); |
9ef39277 | 10128 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 10129 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10130 | } |
9ee6e8bb | 10131 | break; |
838fa72d AJ |
10132 | case 5: case 6: /* 32 * 32 -> 32msb (SMMUL, SMMLA, SMMLS) */ |
10133 | tmp64 = gen_muls_i64_i32(tmp, tmp2); | |
9ee6e8bb | 10134 | if (rs != 15) { |
838fa72d AJ |
10135 | tmp = load_reg(s, rs); |
10136 | if (insn & (1 << 20)) { | |
10137 | tmp64 = gen_addq_msw(tmp64, tmp); | |
99c475ab | 10138 | } else { |
838fa72d | 10139 | tmp64 = gen_subq_msw(tmp64, tmp); |
99c475ab | 10140 | } |
2c0262af | 10141 | } |
838fa72d AJ |
10142 | if (insn & (1 << 4)) { |
10143 | tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u); | |
10144 | } | |
10145 | tcg_gen_shri_i64(tmp64, tmp64, 32); | |
7d1b0095 | 10146 | tmp = tcg_temp_new_i32(); |
ecc7b3aa | 10147 | tcg_gen_extrl_i64_i32(tmp, tmp64); |
838fa72d | 10148 | tcg_temp_free_i64(tmp64); |
9ee6e8bb PB |
10149 | break; |
10150 | case 7: /* Unsigned sum of absolute differences. */ | |
d9ba4830 | 10151 | gen_helper_usad8(tmp, tmp, tmp2); |
7d1b0095 | 10152 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10153 | if (rs != 15) { |
d9ba4830 PB |
10154 | tmp2 = load_reg(s, rs); |
10155 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
7d1b0095 | 10156 | tcg_temp_free_i32(tmp2); |
5fd46862 | 10157 | } |
9ee6e8bb | 10158 | break; |
2c0262af | 10159 | } |
d9ba4830 | 10160 | store_reg(s, rd, tmp); |
2c0262af | 10161 | break; |
9ee6e8bb PB |
10162 | case 6: case 7: /* 64-bit multiply, Divide. */ |
10163 | op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70); | |
5e3f878a PB |
10164 | tmp = load_reg(s, rn); |
10165 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
10166 | if ((op & 0x50) == 0x10) { |
10167 | /* sdiv, udiv */ | |
7e0cf8b4 | 10168 | if (!dc_isar_feature(thumb_div, s)) { |
9ee6e8bb | 10169 | goto illegal_op; |
47789990 | 10170 | } |
9ee6e8bb | 10171 | if (op & 0x20) |
5e3f878a | 10172 | gen_helper_udiv(tmp, tmp, tmp2); |
2c0262af | 10173 | else |
5e3f878a | 10174 | gen_helper_sdiv(tmp, tmp, tmp2); |
7d1b0095 | 10175 | tcg_temp_free_i32(tmp2); |
5e3f878a | 10176 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
10177 | } else if ((op & 0xe) == 0xc) { |
10178 | /* Dual multiply accumulate long. */ | |
62b44f05 AR |
10179 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { |
10180 | tcg_temp_free_i32(tmp); | |
10181 | tcg_temp_free_i32(tmp2); | |
10182 | goto illegal_op; | |
10183 | } | |
9ee6e8bb | 10184 | if (op & 1) |
5e3f878a PB |
10185 | gen_swap_half(tmp2); |
10186 | gen_smul_dual(tmp, tmp2); | |
9ee6e8bb | 10187 | if (op & 0x10) { |
5e3f878a | 10188 | tcg_gen_sub_i32(tmp, tmp, tmp2); |
b5ff1b31 | 10189 | } else { |
5e3f878a | 10190 | tcg_gen_add_i32(tmp, tmp, tmp2); |
b5ff1b31 | 10191 | } |
7d1b0095 | 10192 | tcg_temp_free_i32(tmp2); |
a7812ae4 PB |
10193 | /* BUGFIX */ |
10194 | tmp64 = tcg_temp_new_i64(); | |
10195 | tcg_gen_ext_i32_i64(tmp64, tmp); | |
7d1b0095 | 10196 | tcg_temp_free_i32(tmp); |
a7812ae4 PB |
10197 | gen_addq(s, tmp64, rs, rd); |
10198 | gen_storeq_reg(s, rs, rd, tmp64); | |
b75263d6 | 10199 | tcg_temp_free_i64(tmp64); |
2c0262af | 10200 | } else { |
9ee6e8bb PB |
10201 | if (op & 0x20) { |
10202 | /* Unsigned 64-bit multiply */ | |
a7812ae4 | 10203 | tmp64 = gen_mulu_i64_i32(tmp, tmp2); |
b5ff1b31 | 10204 | } else { |
9ee6e8bb PB |
10205 | if (op & 8) { |
10206 | /* smlalxy */ | |
62b44f05 AR |
10207 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { |
10208 | tcg_temp_free_i32(tmp2); | |
10209 | tcg_temp_free_i32(tmp); | |
10210 | goto illegal_op; | |
10211 | } | |
5e3f878a | 10212 | gen_mulxy(tmp, tmp2, op & 2, op & 1); |
7d1b0095 | 10213 | tcg_temp_free_i32(tmp2); |
a7812ae4 PB |
10214 | tmp64 = tcg_temp_new_i64(); |
10215 | tcg_gen_ext_i32_i64(tmp64, tmp); | |
7d1b0095 | 10216 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
10217 | } else { |
10218 | /* Signed 64-bit multiply */ | |
a7812ae4 | 10219 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
9ee6e8bb | 10220 | } |
b5ff1b31 | 10221 | } |
9ee6e8bb PB |
10222 | if (op & 4) { |
10223 | /* umaal */ | |
62b44f05 AR |
10224 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { |
10225 | tcg_temp_free_i64(tmp64); | |
10226 | goto illegal_op; | |
10227 | } | |
a7812ae4 PB |
10228 | gen_addq_lo(s, tmp64, rs); |
10229 | gen_addq_lo(s, tmp64, rd); | |
9ee6e8bb PB |
10230 | } else if (op & 0x40) { |
10231 | /* 64-bit accumulate. */ | |
a7812ae4 | 10232 | gen_addq(s, tmp64, rs, rd); |
9ee6e8bb | 10233 | } |
a7812ae4 | 10234 | gen_storeq_reg(s, rs, rd, tmp64); |
b75263d6 | 10235 | tcg_temp_free_i64(tmp64); |
5fd46862 | 10236 | } |
2c0262af | 10237 | break; |
9ee6e8bb PB |
10238 | } |
10239 | break; | |
10240 | case 6: case 7: case 14: case 15: | |
10241 | /* Coprocessor. */ | |
7517748e | 10242 | if (arm_dc_feature(s, ARM_FEATURE_M)) { |
8859ba3c PM |
10243 | /* 0b111x_11xx_xxxx_xxxx_xxxx_xxxx_xxxx_xxxx */ |
10244 | if (extract32(insn, 24, 2) == 3) { | |
10245 | goto illegal_op; /* op0 = 0b11 : unallocated */ | |
10246 | } | |
10247 | ||
10248 | /* | |
10249 | * Decode VLLDM and VLSTM first: these are nonstandard because: | |
10250 | * * if there is no FPU then these insns must NOP in | |
10251 | * Secure state and UNDEF in Nonsecure state | |
10252 | * * if there is an FPU then these insns do not have | |
10253 | * the usual behaviour that disas_vfp_insn() provides of | |
10254 | * being controlled by CPACR/NSACR enable bits or the | |
10255 | * lazy-stacking logic. | |
7517748e | 10256 | */ |
b1e5336a PM |
10257 | if (arm_dc_feature(s, ARM_FEATURE_V8) && |
10258 | (insn & 0xffa00f00) == 0xec200a00) { | |
10259 | /* 0b1110_1100_0x1x_xxxx_xxxx_1010_xxxx_xxxx | |
10260 | * - VLLDM, VLSTM | |
10261 | * We choose to UNDEF if the RAZ bits are non-zero. | |
10262 | */ | |
10263 | if (!s->v8m_secure || (insn & 0x0040f0ff)) { | |
10264 | goto illegal_op; | |
10265 | } | |
019076b0 PM |
10266 | |
10267 | if (arm_dc_feature(s, ARM_FEATURE_VFP)) { | |
10268 | TCGv_i32 fptr = load_reg(s, rn); | |
10269 | ||
10270 | if (extract32(insn, 20, 1)) { | |
956fe143 | 10271 | gen_helper_v7m_vlldm(cpu_env, fptr); |
019076b0 PM |
10272 | } else { |
10273 | gen_helper_v7m_vlstm(cpu_env, fptr); | |
10274 | } | |
10275 | tcg_temp_free_i32(fptr); | |
10276 | ||
10277 | /* End the TB, because we have updated FP control bits */ | |
10278 | s->base.is_jmp = DISAS_UPDATE; | |
10279 | } | |
b1e5336a PM |
10280 | break; |
10281 | } | |
8859ba3c PM |
10282 | if (arm_dc_feature(s, ARM_FEATURE_VFP) && |
10283 | ((insn >> 8) & 0xe) == 10) { | |
10284 | /* FP, and the CPU supports it */ | |
10285 | if (disas_vfp_insn(s, insn)) { | |
10286 | goto illegal_op; | |
10287 | } | |
10288 | break; | |
10289 | } | |
10290 | ||
b1e5336a | 10291 | /* All other insns: NOCP */ |
7517748e PM |
10292 | gen_exception_insn(s, 4, EXCP_NOCP, syn_uncategorized(), |
10293 | default_exception_el(s)); | |
10294 | break; | |
10295 | } | |
0052087e RH |
10296 | if ((insn & 0xfe000a00) == 0xfc000800 |
10297 | && arm_dc_feature(s, ARM_FEATURE_V8)) { | |
10298 | /* The Thumb2 and ARM encodings are identical. */ | |
10299 | if (disas_neon_insn_3same_ext(s, insn)) { | |
10300 | goto illegal_op; | |
10301 | } | |
10302 | } else if ((insn & 0xff000a00) == 0xfe000800 | |
10303 | && arm_dc_feature(s, ARM_FEATURE_V8)) { | |
10304 | /* The Thumb2 and ARM encodings are identical. */ | |
10305 | if (disas_neon_insn_2reg_scalar_ext(s, insn)) { | |
10306 | goto illegal_op; | |
10307 | } | |
10308 | } else if (((insn >> 24) & 3) == 3) { | |
9ee6e8bb | 10309 | /* Translate into the equivalent ARM encoding. */ |
f06053e3 | 10310 | insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4) | (1 << 28); |
7dcc1f89 | 10311 | if (disas_neon_data_insn(s, insn)) { |
9ee6e8bb | 10312 | goto illegal_op; |
7dcc1f89 | 10313 | } |
6a57f3eb | 10314 | } else if (((insn >> 8) & 0xe) == 10) { |
7dcc1f89 | 10315 | if (disas_vfp_insn(s, insn)) { |
6a57f3eb WN |
10316 | goto illegal_op; |
10317 | } | |
9ee6e8bb PB |
10318 | } else { |
10319 | if (insn & (1 << 28)) | |
10320 | goto illegal_op; | |
7dcc1f89 | 10321 | if (disas_coproc_insn(s, insn)) { |
9ee6e8bb | 10322 | goto illegal_op; |
7dcc1f89 | 10323 | } |
9ee6e8bb PB |
10324 | } |
10325 | break; | |
10326 | case 8: case 9: case 10: case 11: | |
10327 | if (insn & (1 << 15)) { | |
10328 | /* Branches, misc control. */ | |
10329 | if (insn & 0x5000) { | |
10330 | /* Unconditional branch. */ | |
10331 | /* signextend(hw1[10:0]) -> offset[:12]. */ | |
10332 | offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff; | |
10333 | /* hw1[10:0] -> offset[11:1]. */ | |
10334 | offset |= (insn & 0x7ff) << 1; | |
10335 | /* (~hw2[13, 11] ^ offset[24]) -> offset[23,22] | |
10336 | offset[24:22] already have the same value because of the | |
10337 | sign extension above. */ | |
10338 | offset ^= ((~insn) & (1 << 13)) << 10; | |
10339 | offset ^= ((~insn) & (1 << 11)) << 11; | |
10340 | ||
9ee6e8bb PB |
10341 | if (insn & (1 << 14)) { |
10342 | /* Branch and link. */ | |
3174f8e9 | 10343 | tcg_gen_movi_i32(cpu_R[14], s->pc | 1); |
b5ff1b31 | 10344 | } |
3b46e624 | 10345 | |
b0109805 | 10346 | offset += s->pc; |
9ee6e8bb PB |
10347 | if (insn & (1 << 12)) { |
10348 | /* b/bl */ | |
b0109805 | 10349 | gen_jmp(s, offset); |
9ee6e8bb PB |
10350 | } else { |
10351 | /* blx */ | |
b0109805 | 10352 | offset &= ~(uint32_t)2; |
be5e7a76 | 10353 | /* thumb2 bx, no need to check */ |
b0109805 | 10354 | gen_bx_im(s, offset); |
2c0262af | 10355 | } |
9ee6e8bb PB |
10356 | } else if (((insn >> 23) & 7) == 7) { |
10357 | /* Misc control */ | |
10358 | if (insn & (1 << 13)) | |
10359 | goto illegal_op; | |
10360 | ||
10361 | if (insn & (1 << 26)) { | |
001b3cab PM |
10362 | if (arm_dc_feature(s, ARM_FEATURE_M)) { |
10363 | goto illegal_op; | |
10364 | } | |
37e6456e PM |
10365 | if (!(insn & (1 << 20))) { |
10366 | /* Hypervisor call (v7) */ | |
10367 | int imm16 = extract32(insn, 16, 4) << 12 | |
10368 | | extract32(insn, 0, 12); | |
10369 | ARCH(7); | |
10370 | if (IS_USER(s)) { | |
10371 | goto illegal_op; | |
10372 | } | |
10373 | gen_hvc(s, imm16); | |
10374 | } else { | |
10375 | /* Secure monitor call (v6+) */ | |
10376 | ARCH(6K); | |
10377 | if (IS_USER(s)) { | |
10378 | goto illegal_op; | |
10379 | } | |
10380 | gen_smc(s); | |
10381 | } | |
2c0262af | 10382 | } else { |
9ee6e8bb PB |
10383 | op = (insn >> 20) & 7; |
10384 | switch (op) { | |
10385 | case 0: /* msr cpsr. */ | |
b53d8923 | 10386 | if (arm_dc_feature(s, ARM_FEATURE_M)) { |
8984bd2e | 10387 | tmp = load_reg(s, rn); |
b28b3377 PM |
10388 | /* the constant is the mask and SYSm fields */ |
10389 | addr = tcg_const_i32(insn & 0xfff); | |
8984bd2e | 10390 | gen_helper_v7m_msr(cpu_env, addr, tmp); |
b75263d6 | 10391 | tcg_temp_free_i32(addr); |
7d1b0095 | 10392 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
10393 | gen_lookup_tb(s); |
10394 | break; | |
10395 | } | |
10396 | /* fall through */ | |
10397 | case 1: /* msr spsr. */ | |
b53d8923 | 10398 | if (arm_dc_feature(s, ARM_FEATURE_M)) { |
9ee6e8bb | 10399 | goto illegal_op; |
b53d8923 | 10400 | } |
8bfd0550 PM |
10401 | |
10402 | if (extract32(insn, 5, 1)) { | |
10403 | /* MSR (banked) */ | |
10404 | int sysm = extract32(insn, 8, 4) | | |
10405 | (extract32(insn, 4, 1) << 4); | |
10406 | int r = op & 1; | |
10407 | ||
10408 | gen_msr_banked(s, r, sysm, rm); | |
10409 | break; | |
10410 | } | |
10411 | ||
10412 | /* MSR (for PSRs) */ | |
2fbac54b FN |
10413 | tmp = load_reg(s, rn); |
10414 | if (gen_set_psr(s, | |
7dcc1f89 | 10415 | msr_mask(s, (insn >> 8) & 0xf, op == 1), |
2fbac54b | 10416 | op == 1, tmp)) |
9ee6e8bb PB |
10417 | goto illegal_op; |
10418 | break; | |
10419 | case 2: /* cps, nop-hint. */ | |
10420 | if (((insn >> 8) & 7) == 0) { | |
10421 | gen_nop_hint(s, insn & 0xff); | |
10422 | } | |
10423 | /* Implemented as NOP in user mode. */ | |
10424 | if (IS_USER(s)) | |
10425 | break; | |
10426 | offset = 0; | |
10427 | imm = 0; | |
10428 | if (insn & (1 << 10)) { | |
10429 | if (insn & (1 << 7)) | |
10430 | offset |= CPSR_A; | |
10431 | if (insn & (1 << 6)) | |
10432 | offset |= CPSR_I; | |
10433 | if (insn & (1 << 5)) | |
10434 | offset |= CPSR_F; | |
10435 | if (insn & (1 << 9)) | |
10436 | imm = CPSR_A | CPSR_I | CPSR_F; | |
10437 | } | |
10438 | if (insn & (1 << 8)) { | |
10439 | offset |= 0x1f; | |
10440 | imm |= (insn & 0x1f); | |
10441 | } | |
10442 | if (offset) { | |
2fbac54b | 10443 | gen_set_psr_im(s, offset, 0, imm); |
9ee6e8bb PB |
10444 | } |
10445 | break; | |
10446 | case 3: /* Special control operations. */ | |
14120108 | 10447 | if (!arm_dc_feature(s, ARM_FEATURE_V7) && |
8297cb13 | 10448 | !arm_dc_feature(s, ARM_FEATURE_M)) { |
14120108 JS |
10449 | goto illegal_op; |
10450 | } | |
9ee6e8bb PB |
10451 | op = (insn >> 4) & 0xf; |
10452 | switch (op) { | |
10453 | case 2: /* clrex */ | |
426f5abc | 10454 | gen_clrex(s); |
9ee6e8bb PB |
10455 | break; |
10456 | case 4: /* dsb */ | |
10457 | case 5: /* dmb */ | |
61e4c432 | 10458 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); |
9ee6e8bb | 10459 | break; |
6df99dec SS |
10460 | case 6: /* isb */ |
10461 | /* We need to break the TB after this insn | |
10462 | * to execute self-modifying code correctly | |
10463 | * and also to take any pending interrupts | |
10464 | * immediately. | |
10465 | */ | |
0b609cc1 | 10466 | gen_goto_tb(s, 0, s->pc & ~1); |
6df99dec | 10467 | break; |
9888bd1e RH |
10468 | case 7: /* sb */ |
10469 | if ((insn & 0xf) || !dc_isar_feature(aa32_sb, s)) { | |
10470 | goto illegal_op; | |
10471 | } | |
10472 | /* | |
10473 | * TODO: There is no speculation barrier opcode | |
10474 | * for TCG; MB and end the TB instead. | |
10475 | */ | |
10476 | tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); | |
10477 | gen_goto_tb(s, 0, s->pc & ~1); | |
10478 | break; | |
9ee6e8bb PB |
10479 | default: |
10480 | goto illegal_op; | |
10481 | } | |
10482 | break; | |
10483 | case 4: /* bxj */ | |
9d7c59c8 PM |
10484 | /* Trivial implementation equivalent to bx. |
10485 | * This instruction doesn't exist at all for M-profile. | |
10486 | */ | |
10487 | if (arm_dc_feature(s, ARM_FEATURE_M)) { | |
10488 | goto illegal_op; | |
10489 | } | |
d9ba4830 PB |
10490 | tmp = load_reg(s, rn); |
10491 | gen_bx(s, tmp); | |
9ee6e8bb PB |
10492 | break; |
10493 | case 5: /* Exception return. */ | |
b8b45b68 RV |
10494 | if (IS_USER(s)) { |
10495 | goto illegal_op; | |
10496 | } | |
10497 | if (rn != 14 || rd != 15) { | |
10498 | goto illegal_op; | |
10499 | } | |
55c544ed PM |
10500 | if (s->current_el == 2) { |
10501 | /* ERET from Hyp uses ELR_Hyp, not LR */ | |
10502 | if (insn & 0xff) { | |
10503 | goto illegal_op; | |
10504 | } | |
10505 | tmp = load_cpu_field(elr_el[2]); | |
10506 | } else { | |
10507 | tmp = load_reg(s, rn); | |
10508 | tcg_gen_subi_i32(tmp, tmp, insn & 0xff); | |
10509 | } | |
b8b45b68 RV |
10510 | gen_exception_return(s, tmp); |
10511 | break; | |
8bfd0550 | 10512 | case 6: /* MRS */ |
43ac6574 PM |
10513 | if (extract32(insn, 5, 1) && |
10514 | !arm_dc_feature(s, ARM_FEATURE_M)) { | |
8bfd0550 PM |
10515 | /* MRS (banked) */ |
10516 | int sysm = extract32(insn, 16, 4) | | |
10517 | (extract32(insn, 4, 1) << 4); | |
10518 | ||
10519 | gen_mrs_banked(s, 0, sysm, rd); | |
10520 | break; | |
10521 | } | |
10522 | ||
3d54026f PM |
10523 | if (extract32(insn, 16, 4) != 0xf) { |
10524 | goto illegal_op; | |
10525 | } | |
10526 | if (!arm_dc_feature(s, ARM_FEATURE_M) && | |
10527 | extract32(insn, 0, 8) != 0) { | |
10528 | goto illegal_op; | |
10529 | } | |
10530 | ||
8bfd0550 | 10531 | /* mrs cpsr */ |
7d1b0095 | 10532 | tmp = tcg_temp_new_i32(); |
b53d8923 | 10533 | if (arm_dc_feature(s, ARM_FEATURE_M)) { |
8984bd2e PB |
10534 | addr = tcg_const_i32(insn & 0xff); |
10535 | gen_helper_v7m_mrs(tmp, cpu_env, addr); | |
b75263d6 | 10536 | tcg_temp_free_i32(addr); |
9ee6e8bb | 10537 | } else { |
9ef39277 | 10538 | gen_helper_cpsr_read(tmp, cpu_env); |
9ee6e8bb | 10539 | } |
8984bd2e | 10540 | store_reg(s, rd, tmp); |
9ee6e8bb | 10541 | break; |
8bfd0550 | 10542 | case 7: /* MRS */ |
43ac6574 PM |
10543 | if (extract32(insn, 5, 1) && |
10544 | !arm_dc_feature(s, ARM_FEATURE_M)) { | |
8bfd0550 PM |
10545 | /* MRS (banked) */ |
10546 | int sysm = extract32(insn, 16, 4) | | |
10547 | (extract32(insn, 4, 1) << 4); | |
10548 | ||
10549 | gen_mrs_banked(s, 1, sysm, rd); | |
10550 | break; | |
10551 | } | |
10552 | ||
10553 | /* mrs spsr. */ | |
9ee6e8bb | 10554 | /* Not accessible in user mode. */ |
b53d8923 | 10555 | if (IS_USER(s) || arm_dc_feature(s, ARM_FEATURE_M)) { |
9ee6e8bb | 10556 | goto illegal_op; |
b53d8923 | 10557 | } |
3d54026f PM |
10558 | |
10559 | if (extract32(insn, 16, 4) != 0xf || | |
10560 | extract32(insn, 0, 8) != 0) { | |
10561 | goto illegal_op; | |
10562 | } | |
10563 | ||
d9ba4830 PB |
10564 | tmp = load_cpu_field(spsr); |
10565 | store_reg(s, rd, tmp); | |
9ee6e8bb | 10566 | break; |
2c0262af FB |
10567 | } |
10568 | } | |
9ee6e8bb PB |
10569 | } else { |
10570 | /* Conditional branch. */ | |
10571 | op = (insn >> 22) & 0xf; | |
10572 | /* Generate a conditional jump to next instruction. */ | |
c2d9644e | 10573 | arm_skip_unless(s, op); |
9ee6e8bb PB |
10574 | |
10575 | /* offset[11:1] = insn[10:0] */ | |
10576 | offset = (insn & 0x7ff) << 1; | |
10577 | /* offset[17:12] = insn[21:16]. */ | |
10578 | offset |= (insn & 0x003f0000) >> 4; | |
10579 | /* offset[31:20] = insn[26]. */ | |
10580 | offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11; | |
10581 | /* offset[18] = insn[13]. */ | |
10582 | offset |= (insn & (1 << 13)) << 5; | |
10583 | /* offset[19] = insn[11]. */ | |
10584 | offset |= (insn & (1 << 11)) << 8; | |
10585 | ||
10586 | /* jump to the offset */ | |
b0109805 | 10587 | gen_jmp(s, s->pc + offset); |
9ee6e8bb PB |
10588 | } |
10589 | } else { | |
55203189 PM |
10590 | /* |
10591 | * 0b1111_0xxx_xxxx_0xxx_xxxx_xxxx | |
10592 | * - Data-processing (modified immediate, plain binary immediate) | |
10593 | */ | |
9ee6e8bb | 10594 | if (insn & (1 << 25)) { |
55203189 PM |
10595 | /* |
10596 | * 0b1111_0x1x_xxxx_0xxx_xxxx_xxxx | |
10597 | * - Data-processing (plain binary immediate) | |
10598 | */ | |
9ee6e8bb PB |
10599 | if (insn & (1 << 24)) { |
10600 | if (insn & (1 << 20)) | |
10601 | goto illegal_op; | |
10602 | /* Bitfield/Saturate. */ | |
10603 | op = (insn >> 21) & 7; | |
10604 | imm = insn & 0x1f; | |
10605 | shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); | |
6ddbc6e4 | 10606 | if (rn == 15) { |
7d1b0095 | 10607 | tmp = tcg_temp_new_i32(); |
6ddbc6e4 PB |
10608 | tcg_gen_movi_i32(tmp, 0); |
10609 | } else { | |
10610 | tmp = load_reg(s, rn); | |
10611 | } | |
9ee6e8bb PB |
10612 | switch (op) { |
10613 | case 2: /* Signed bitfield extract. */ | |
10614 | imm++; | |
10615 | if (shift + imm > 32) | |
10616 | goto illegal_op; | |
59a71b4c RH |
10617 | if (imm < 32) { |
10618 | tcg_gen_sextract_i32(tmp, tmp, shift, imm); | |
10619 | } | |
9ee6e8bb PB |
10620 | break; |
10621 | case 6: /* Unsigned bitfield extract. */ | |
10622 | imm++; | |
10623 | if (shift + imm > 32) | |
10624 | goto illegal_op; | |
59a71b4c RH |
10625 | if (imm < 32) { |
10626 | tcg_gen_extract_i32(tmp, tmp, shift, imm); | |
10627 | } | |
9ee6e8bb PB |
10628 | break; |
10629 | case 3: /* Bitfield insert/clear. */ | |
10630 | if (imm < shift) | |
10631 | goto illegal_op; | |
10632 | imm = imm + 1 - shift; | |
10633 | if (imm != 32) { | |
6ddbc6e4 | 10634 | tmp2 = load_reg(s, rd); |
d593c48e | 10635 | tcg_gen_deposit_i32(tmp, tmp2, tmp, shift, imm); |
7d1b0095 | 10636 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
10637 | } |
10638 | break; | |
10639 | case 7: | |
10640 | goto illegal_op; | |
10641 | default: /* Saturate. */ | |
9ee6e8bb PB |
10642 | if (shift) { |
10643 | if (op & 1) | |
6ddbc6e4 | 10644 | tcg_gen_sari_i32(tmp, tmp, shift); |
9ee6e8bb | 10645 | else |
6ddbc6e4 | 10646 | tcg_gen_shli_i32(tmp, tmp, shift); |
9ee6e8bb | 10647 | } |
6ddbc6e4 | 10648 | tmp2 = tcg_const_i32(imm); |
9ee6e8bb PB |
10649 | if (op & 4) { |
10650 | /* Unsigned. */ | |
62b44f05 AR |
10651 | if ((op & 1) && shift == 0) { |
10652 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { | |
10653 | tcg_temp_free_i32(tmp); | |
10654 | tcg_temp_free_i32(tmp2); | |
10655 | goto illegal_op; | |
10656 | } | |
9ef39277 | 10657 | gen_helper_usat16(tmp, cpu_env, tmp, tmp2); |
62b44f05 | 10658 | } else { |
9ef39277 | 10659 | gen_helper_usat(tmp, cpu_env, tmp, tmp2); |
62b44f05 | 10660 | } |
2c0262af | 10661 | } else { |
9ee6e8bb | 10662 | /* Signed. */ |
62b44f05 AR |
10663 | if ((op & 1) && shift == 0) { |
10664 | if (!arm_dc_feature(s, ARM_FEATURE_THUMB_DSP)) { | |
10665 | tcg_temp_free_i32(tmp); | |
10666 | tcg_temp_free_i32(tmp2); | |
10667 | goto illegal_op; | |
10668 | } | |
9ef39277 | 10669 | gen_helper_ssat16(tmp, cpu_env, tmp, tmp2); |
62b44f05 | 10670 | } else { |
9ef39277 | 10671 | gen_helper_ssat(tmp, cpu_env, tmp, tmp2); |
62b44f05 | 10672 | } |
2c0262af | 10673 | } |
b75263d6 | 10674 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10675 | break; |
2c0262af | 10676 | } |
6ddbc6e4 | 10677 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
10678 | } else { |
10679 | imm = ((insn & 0x04000000) >> 15) | |
10680 | | ((insn & 0x7000) >> 4) | (insn & 0xff); | |
10681 | if (insn & (1 << 22)) { | |
10682 | /* 16-bit immediate. */ | |
10683 | imm |= (insn >> 4) & 0xf000; | |
10684 | if (insn & (1 << 23)) { | |
10685 | /* movt */ | |
5e3f878a | 10686 | tmp = load_reg(s, rd); |
86831435 | 10687 | tcg_gen_ext16u_i32(tmp, tmp); |
5e3f878a | 10688 | tcg_gen_ori_i32(tmp, tmp, imm << 16); |
2c0262af | 10689 | } else { |
9ee6e8bb | 10690 | /* movw */ |
7d1b0095 | 10691 | tmp = tcg_temp_new_i32(); |
5e3f878a | 10692 | tcg_gen_movi_i32(tmp, imm); |
2c0262af | 10693 | } |
55203189 | 10694 | store_reg(s, rd, tmp); |
2c0262af | 10695 | } else { |
9ee6e8bb PB |
10696 | /* Add/sub 12-bit immediate. */ |
10697 | if (rn == 15) { | |
b0109805 | 10698 | offset = s->pc & ~(uint32_t)3; |
9ee6e8bb | 10699 | if (insn & (1 << 23)) |
b0109805 | 10700 | offset -= imm; |
9ee6e8bb | 10701 | else |
b0109805 | 10702 | offset += imm; |
7d1b0095 | 10703 | tmp = tcg_temp_new_i32(); |
5e3f878a | 10704 | tcg_gen_movi_i32(tmp, offset); |
55203189 | 10705 | store_reg(s, rd, tmp); |
2c0262af | 10706 | } else { |
5e3f878a | 10707 | tmp = load_reg(s, rn); |
9ee6e8bb | 10708 | if (insn & (1 << 23)) |
5e3f878a | 10709 | tcg_gen_subi_i32(tmp, tmp, imm); |
9ee6e8bb | 10710 | else |
5e3f878a | 10711 | tcg_gen_addi_i32(tmp, tmp, imm); |
55203189 PM |
10712 | if (rn == 13 && rd == 13) { |
10713 | /* ADD SP, SP, imm or SUB SP, SP, imm */ | |
10714 | store_sp_checked(s, tmp); | |
10715 | } else { | |
10716 | store_reg(s, rd, tmp); | |
10717 | } | |
2c0262af | 10718 | } |
9ee6e8bb | 10719 | } |
191abaa2 | 10720 | } |
9ee6e8bb | 10721 | } else { |
55203189 PM |
10722 | /* |
10723 | * 0b1111_0x0x_xxxx_0xxx_xxxx_xxxx | |
10724 | * - Data-processing (modified immediate) | |
10725 | */ | |
9ee6e8bb PB |
10726 | int shifter_out = 0; |
10727 | /* modified 12-bit immediate. */ | |
10728 | shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12); | |
10729 | imm = (insn & 0xff); | |
10730 | switch (shift) { | |
10731 | case 0: /* XY */ | |
10732 | /* Nothing to do. */ | |
10733 | break; | |
10734 | case 1: /* 00XY00XY */ | |
10735 | imm |= imm << 16; | |
10736 | break; | |
10737 | case 2: /* XY00XY00 */ | |
10738 | imm |= imm << 16; | |
10739 | imm <<= 8; | |
10740 | break; | |
10741 | case 3: /* XYXYXYXY */ | |
10742 | imm |= imm << 16; | |
10743 | imm |= imm << 8; | |
10744 | break; | |
10745 | default: /* Rotated constant. */ | |
10746 | shift = (shift << 1) | (imm >> 7); | |
10747 | imm |= 0x80; | |
10748 | imm = imm << (32 - shift); | |
10749 | shifter_out = 1; | |
10750 | break; | |
b5ff1b31 | 10751 | } |
7d1b0095 | 10752 | tmp2 = tcg_temp_new_i32(); |
3174f8e9 | 10753 | tcg_gen_movi_i32(tmp2, imm); |
9ee6e8bb | 10754 | rn = (insn >> 16) & 0xf; |
3174f8e9 | 10755 | if (rn == 15) { |
7d1b0095 | 10756 | tmp = tcg_temp_new_i32(); |
3174f8e9 FN |
10757 | tcg_gen_movi_i32(tmp, 0); |
10758 | } else { | |
10759 | tmp = load_reg(s, rn); | |
10760 | } | |
9ee6e8bb PB |
10761 | op = (insn >> 21) & 0xf; |
10762 | if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0, | |
3174f8e9 | 10763 | shifter_out, tmp, tmp2)) |
9ee6e8bb | 10764 | goto illegal_op; |
7d1b0095 | 10765 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 10766 | rd = (insn >> 8) & 0xf; |
55203189 PM |
10767 | if (rd == 13 && rn == 13 |
10768 | && (op == 8 || op == 13)) { | |
10769 | /* ADD(S) SP, SP, imm or SUB(S) SP, SP, imm */ | |
10770 | store_sp_checked(s, tmp); | |
10771 | } else if (rd != 15) { | |
3174f8e9 FN |
10772 | store_reg(s, rd, tmp); |
10773 | } else { | |
7d1b0095 | 10774 | tcg_temp_free_i32(tmp); |
2c0262af | 10775 | } |
2c0262af | 10776 | } |
9ee6e8bb PB |
10777 | } |
10778 | break; | |
10779 | case 12: /* Load/store single data item. */ | |
10780 | { | |
10781 | int postinc = 0; | |
10782 | int writeback = 0; | |
a99caa48 | 10783 | int memidx; |
9bb6558a PM |
10784 | ISSInfo issinfo; |
10785 | ||
9ee6e8bb | 10786 | if ((insn & 0x01100000) == 0x01000000) { |
7dcc1f89 | 10787 | if (disas_neon_ls_insn(s, insn)) { |
c1713132 | 10788 | goto illegal_op; |
7dcc1f89 | 10789 | } |
9ee6e8bb PB |
10790 | break; |
10791 | } | |
a2fdc890 PM |
10792 | op = ((insn >> 21) & 3) | ((insn >> 22) & 4); |
10793 | if (rs == 15) { | |
10794 | if (!(insn & (1 << 20))) { | |
10795 | goto illegal_op; | |
10796 | } | |
10797 | if (op != 2) { | |
10798 | /* Byte or halfword load space with dest == r15 : memory hints. | |
10799 | * Catch them early so we don't emit pointless addressing code. | |
10800 | * This space is a mix of: | |
10801 | * PLD/PLDW/PLI, which we implement as NOPs (note that unlike | |
10802 | * the ARM encodings, PLDW space doesn't UNDEF for non-v7MP | |
10803 | * cores) | |
10804 | * unallocated hints, which must be treated as NOPs | |
10805 | * UNPREDICTABLE space, which we NOP or UNDEF depending on | |
10806 | * which is easiest for the decoding logic | |
10807 | * Some space which must UNDEF | |
10808 | */ | |
10809 | int op1 = (insn >> 23) & 3; | |
10810 | int op2 = (insn >> 6) & 0x3f; | |
10811 | if (op & 2) { | |
10812 | goto illegal_op; | |
10813 | } | |
10814 | if (rn == 15) { | |
02afbf64 PM |
10815 | /* UNPREDICTABLE, unallocated hint or |
10816 | * PLD/PLDW/PLI (literal) | |
10817 | */ | |
2eea841c | 10818 | return; |
a2fdc890 PM |
10819 | } |
10820 | if (op1 & 1) { | |
2eea841c | 10821 | return; /* PLD/PLDW/PLI or unallocated hint */ |
a2fdc890 PM |
10822 | } |
10823 | if ((op2 == 0) || ((op2 & 0x3c) == 0x30)) { | |
2eea841c | 10824 | return; /* PLD/PLDW/PLI or unallocated hint */ |
a2fdc890 PM |
10825 | } |
10826 | /* UNDEF space, or an UNPREDICTABLE */ | |
2eea841c | 10827 | goto illegal_op; |
a2fdc890 PM |
10828 | } |
10829 | } | |
a99caa48 | 10830 | memidx = get_mem_index(s); |
9ee6e8bb | 10831 | if (rn == 15) { |
7d1b0095 | 10832 | addr = tcg_temp_new_i32(); |
9ee6e8bb PB |
10833 | /* PC relative. */ |
10834 | /* s->pc has already been incremented by 4. */ | |
10835 | imm = s->pc & 0xfffffffc; | |
10836 | if (insn & (1 << 23)) | |
10837 | imm += insn & 0xfff; | |
10838 | else | |
10839 | imm -= insn & 0xfff; | |
b0109805 | 10840 | tcg_gen_movi_i32(addr, imm); |
9ee6e8bb | 10841 | } else { |
b0109805 | 10842 | addr = load_reg(s, rn); |
9ee6e8bb PB |
10843 | if (insn & (1 << 23)) { |
10844 | /* Positive offset. */ | |
10845 | imm = insn & 0xfff; | |
b0109805 | 10846 | tcg_gen_addi_i32(addr, addr, imm); |
9ee6e8bb | 10847 | } else { |
9ee6e8bb | 10848 | imm = insn & 0xff; |
2a0308c5 PM |
10849 | switch ((insn >> 8) & 0xf) { |
10850 | case 0x0: /* Shifted Register. */ | |
9ee6e8bb | 10851 | shift = (insn >> 4) & 0xf; |
2a0308c5 PM |
10852 | if (shift > 3) { |
10853 | tcg_temp_free_i32(addr); | |
18c9b560 | 10854 | goto illegal_op; |
2a0308c5 | 10855 | } |
b26eefb6 | 10856 | tmp = load_reg(s, rm); |
9ee6e8bb | 10857 | if (shift) |
b26eefb6 | 10858 | tcg_gen_shli_i32(tmp, tmp, shift); |
b0109805 | 10859 | tcg_gen_add_i32(addr, addr, tmp); |
7d1b0095 | 10860 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 10861 | break; |
2a0308c5 | 10862 | case 0xc: /* Negative offset. */ |
b0109805 | 10863 | tcg_gen_addi_i32(addr, addr, -imm); |
9ee6e8bb | 10864 | break; |
2a0308c5 | 10865 | case 0xe: /* User privilege. */ |
b0109805 | 10866 | tcg_gen_addi_i32(addr, addr, imm); |
579d21cc | 10867 | memidx = get_a32_user_mem_index(s); |
9ee6e8bb | 10868 | break; |
2a0308c5 | 10869 | case 0x9: /* Post-decrement. */ |
9ee6e8bb PB |
10870 | imm = -imm; |
10871 | /* Fall through. */ | |
2a0308c5 | 10872 | case 0xb: /* Post-increment. */ |
9ee6e8bb PB |
10873 | postinc = 1; |
10874 | writeback = 1; | |
10875 | break; | |
2a0308c5 | 10876 | case 0xd: /* Pre-decrement. */ |
9ee6e8bb PB |
10877 | imm = -imm; |
10878 | /* Fall through. */ | |
2a0308c5 | 10879 | case 0xf: /* Pre-increment. */ |
9ee6e8bb PB |
10880 | writeback = 1; |
10881 | break; | |
10882 | default: | |
2a0308c5 | 10883 | tcg_temp_free_i32(addr); |
b7bcbe95 | 10884 | goto illegal_op; |
9ee6e8bb PB |
10885 | } |
10886 | } | |
10887 | } | |
9bb6558a PM |
10888 | |
10889 | issinfo = writeback ? ISSInvalid : rs; | |
10890 | ||
0bc003ba PM |
10891 | if (s->v8m_stackcheck && rn == 13 && writeback) { |
10892 | /* | |
10893 | * Stackcheck. Here we know 'addr' is the current SP; | |
10894 | * if imm is +ve we're moving SP up, else down. It is | |
10895 | * UNKNOWN whether the limit check triggers when SP starts | |
10896 | * below the limit and ends up above it; we chose to do so. | |
10897 | */ | |
10898 | if ((int32_t)imm < 0) { | |
10899 | TCGv_i32 newsp = tcg_temp_new_i32(); | |
10900 | ||
10901 | tcg_gen_addi_i32(newsp, addr, imm); | |
10902 | gen_helper_v8m_stackcheck(cpu_env, newsp); | |
10903 | tcg_temp_free_i32(newsp); | |
10904 | } else { | |
10905 | gen_helper_v8m_stackcheck(cpu_env, addr); | |
10906 | } | |
10907 | } | |
10908 | ||
10909 | if (writeback && !postinc) { | |
10910 | tcg_gen_addi_i32(addr, addr, imm); | |
10911 | } | |
10912 | ||
9ee6e8bb PB |
10913 | if (insn & (1 << 20)) { |
10914 | /* Load. */ | |
5a839c0d | 10915 | tmp = tcg_temp_new_i32(); |
a2fdc890 | 10916 | switch (op) { |
5a839c0d | 10917 | case 0: |
9bb6558a | 10918 | gen_aa32_ld8u_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d PM |
10919 | break; |
10920 | case 4: | |
9bb6558a | 10921 | gen_aa32_ld8s_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d PM |
10922 | break; |
10923 | case 1: | |
9bb6558a | 10924 | gen_aa32_ld16u_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d PM |
10925 | break; |
10926 | case 5: | |
9bb6558a | 10927 | gen_aa32_ld16s_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d PM |
10928 | break; |
10929 | case 2: | |
9bb6558a | 10930 | gen_aa32_ld32u_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d | 10931 | break; |
2a0308c5 | 10932 | default: |
5a839c0d | 10933 | tcg_temp_free_i32(tmp); |
2a0308c5 PM |
10934 | tcg_temp_free_i32(addr); |
10935 | goto illegal_op; | |
a2fdc890 PM |
10936 | } |
10937 | if (rs == 15) { | |
3bb8a96f | 10938 | gen_bx_excret(s, tmp); |
9ee6e8bb | 10939 | } else { |
a2fdc890 | 10940 | store_reg(s, rs, tmp); |
9ee6e8bb PB |
10941 | } |
10942 | } else { | |
10943 | /* Store. */ | |
b0109805 | 10944 | tmp = load_reg(s, rs); |
9ee6e8bb | 10945 | switch (op) { |
5a839c0d | 10946 | case 0: |
9bb6558a | 10947 | gen_aa32_st8_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d PM |
10948 | break; |
10949 | case 1: | |
9bb6558a | 10950 | gen_aa32_st16_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d PM |
10951 | break; |
10952 | case 2: | |
9bb6558a | 10953 | gen_aa32_st32_iss(s, tmp, addr, memidx, issinfo); |
5a839c0d | 10954 | break; |
2a0308c5 | 10955 | default: |
5a839c0d | 10956 | tcg_temp_free_i32(tmp); |
2a0308c5 PM |
10957 | tcg_temp_free_i32(addr); |
10958 | goto illegal_op; | |
b7bcbe95 | 10959 | } |
5a839c0d | 10960 | tcg_temp_free_i32(tmp); |
2c0262af | 10961 | } |
9ee6e8bb | 10962 | if (postinc) |
b0109805 PB |
10963 | tcg_gen_addi_i32(addr, addr, imm); |
10964 | if (writeback) { | |
10965 | store_reg(s, rn, addr); | |
10966 | } else { | |
7d1b0095 | 10967 | tcg_temp_free_i32(addr); |
b0109805 | 10968 | } |
9ee6e8bb PB |
10969 | } |
10970 | break; | |
10971 | default: | |
10972 | goto illegal_op; | |
2c0262af | 10973 | } |
2eea841c | 10974 | return; |
9ee6e8bb | 10975 | illegal_op: |
2eea841c PM |
10976 | gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized(), |
10977 | default_exception_el(s)); | |
2c0262af FB |
10978 | } |
10979 | ||
296e5a0a | 10980 | static void disas_thumb_insn(DisasContext *s, uint32_t insn) |
99c475ab | 10981 | { |
296e5a0a | 10982 | uint32_t val, op, rm, rn, rd, shift, cond; |
99c475ab FB |
10983 | int32_t offset; |
10984 | int i; | |
39d5492a PM |
10985 | TCGv_i32 tmp; |
10986 | TCGv_i32 tmp2; | |
10987 | TCGv_i32 addr; | |
99c475ab | 10988 | |
99c475ab FB |
10989 | switch (insn >> 12) { |
10990 | case 0: case 1: | |
396e467c | 10991 | |
99c475ab FB |
10992 | rd = insn & 7; |
10993 | op = (insn >> 11) & 3; | |
10994 | if (op == 3) { | |
a2d12f0f PM |
10995 | /* |
10996 | * 0b0001_1xxx_xxxx_xxxx | |
10997 | * - Add, subtract (three low registers) | |
10998 | * - Add, subtract (two low registers and immediate) | |
10999 | */ | |
99c475ab | 11000 | rn = (insn >> 3) & 7; |
396e467c | 11001 | tmp = load_reg(s, rn); |
99c475ab FB |
11002 | if (insn & (1 << 10)) { |
11003 | /* immediate */ | |
7d1b0095 | 11004 | tmp2 = tcg_temp_new_i32(); |
396e467c | 11005 | tcg_gen_movi_i32(tmp2, (insn >> 6) & 7); |
99c475ab FB |
11006 | } else { |
11007 | /* reg */ | |
11008 | rm = (insn >> 6) & 7; | |
396e467c | 11009 | tmp2 = load_reg(s, rm); |
99c475ab | 11010 | } |
9ee6e8bb PB |
11011 | if (insn & (1 << 9)) { |
11012 | if (s->condexec_mask) | |
396e467c | 11013 | tcg_gen_sub_i32(tmp, tmp, tmp2); |
9ee6e8bb | 11014 | else |
72485ec4 | 11015 | gen_sub_CC(tmp, tmp, tmp2); |
9ee6e8bb PB |
11016 | } else { |
11017 | if (s->condexec_mask) | |
396e467c | 11018 | tcg_gen_add_i32(tmp, tmp, tmp2); |
9ee6e8bb | 11019 | else |
72485ec4 | 11020 | gen_add_CC(tmp, tmp, tmp2); |
9ee6e8bb | 11021 | } |
7d1b0095 | 11022 | tcg_temp_free_i32(tmp2); |
396e467c | 11023 | store_reg(s, rd, tmp); |
99c475ab FB |
11024 | } else { |
11025 | /* shift immediate */ | |
11026 | rm = (insn >> 3) & 7; | |
11027 | shift = (insn >> 6) & 0x1f; | |
9a119ff6 PB |
11028 | tmp = load_reg(s, rm); |
11029 | gen_arm_shift_im(tmp, op, shift, s->condexec_mask == 0); | |
11030 | if (!s->condexec_mask) | |
11031 | gen_logic_CC(tmp); | |
11032 | store_reg(s, rd, tmp); | |
99c475ab FB |
11033 | } |
11034 | break; | |
11035 | case 2: case 3: | |
a2d12f0f PM |
11036 | /* |
11037 | * 0b001x_xxxx_xxxx_xxxx | |
11038 | * - Add, subtract, compare, move (one low register and immediate) | |
11039 | */ | |
99c475ab FB |
11040 | op = (insn >> 11) & 3; |
11041 | rd = (insn >> 8) & 0x7; | |
396e467c | 11042 | if (op == 0) { /* mov */ |
7d1b0095 | 11043 | tmp = tcg_temp_new_i32(); |
396e467c | 11044 | tcg_gen_movi_i32(tmp, insn & 0xff); |
9ee6e8bb | 11045 | if (!s->condexec_mask) |
396e467c FN |
11046 | gen_logic_CC(tmp); |
11047 | store_reg(s, rd, tmp); | |
11048 | } else { | |
11049 | tmp = load_reg(s, rd); | |
7d1b0095 | 11050 | tmp2 = tcg_temp_new_i32(); |
396e467c FN |
11051 | tcg_gen_movi_i32(tmp2, insn & 0xff); |
11052 | switch (op) { | |
11053 | case 1: /* cmp */ | |
72485ec4 | 11054 | gen_sub_CC(tmp, tmp, tmp2); |
7d1b0095 PM |
11055 | tcg_temp_free_i32(tmp); |
11056 | tcg_temp_free_i32(tmp2); | |
396e467c FN |
11057 | break; |
11058 | case 2: /* add */ | |
11059 | if (s->condexec_mask) | |
11060 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
11061 | else | |
72485ec4 | 11062 | gen_add_CC(tmp, tmp, tmp2); |
7d1b0095 | 11063 | tcg_temp_free_i32(tmp2); |
396e467c FN |
11064 | store_reg(s, rd, tmp); |
11065 | break; | |
11066 | case 3: /* sub */ | |
11067 | if (s->condexec_mask) | |
11068 | tcg_gen_sub_i32(tmp, tmp, tmp2); | |
11069 | else | |
72485ec4 | 11070 | gen_sub_CC(tmp, tmp, tmp2); |
7d1b0095 | 11071 | tcg_temp_free_i32(tmp2); |
396e467c FN |
11072 | store_reg(s, rd, tmp); |
11073 | break; | |
11074 | } | |
99c475ab | 11075 | } |
99c475ab FB |
11076 | break; |
11077 | case 4: | |
11078 | if (insn & (1 << 11)) { | |
11079 | rd = (insn >> 8) & 7; | |
5899f386 FB |
11080 | /* load pc-relative. Bit 1 of PC is ignored. */ |
11081 | val = s->pc + 2 + ((insn & 0xff) * 4); | |
11082 | val &= ~(uint32_t)2; | |
7d1b0095 | 11083 | addr = tcg_temp_new_i32(); |
b0109805 | 11084 | tcg_gen_movi_i32(addr, val); |
c40c8556 | 11085 | tmp = tcg_temp_new_i32(); |
9bb6558a PM |
11086 | gen_aa32_ld32u_iss(s, tmp, addr, get_mem_index(s), |
11087 | rd | ISSIs16Bit); | |
7d1b0095 | 11088 | tcg_temp_free_i32(addr); |
b0109805 | 11089 | store_reg(s, rd, tmp); |
99c475ab FB |
11090 | break; |
11091 | } | |
11092 | if (insn & (1 << 10)) { | |
ebfe27c5 PM |
11093 | /* 0b0100_01xx_xxxx_xxxx |
11094 | * - data processing extended, branch and exchange | |
11095 | */ | |
99c475ab FB |
11096 | rd = (insn & 7) | ((insn >> 4) & 8); |
11097 | rm = (insn >> 3) & 0xf; | |
11098 | op = (insn >> 8) & 3; | |
11099 | switch (op) { | |
11100 | case 0: /* add */ | |
396e467c FN |
11101 | tmp = load_reg(s, rd); |
11102 | tmp2 = load_reg(s, rm); | |
11103 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
7d1b0095 | 11104 | tcg_temp_free_i32(tmp2); |
55203189 PM |
11105 | if (rd == 13) { |
11106 | /* ADD SP, SP, reg */ | |
11107 | store_sp_checked(s, tmp); | |
11108 | } else { | |
11109 | store_reg(s, rd, tmp); | |
11110 | } | |
99c475ab FB |
11111 | break; |
11112 | case 1: /* cmp */ | |
396e467c FN |
11113 | tmp = load_reg(s, rd); |
11114 | tmp2 = load_reg(s, rm); | |
72485ec4 | 11115 | gen_sub_CC(tmp, tmp, tmp2); |
7d1b0095 PM |
11116 | tcg_temp_free_i32(tmp2); |
11117 | tcg_temp_free_i32(tmp); | |
99c475ab FB |
11118 | break; |
11119 | case 2: /* mov/cpy */ | |
396e467c | 11120 | tmp = load_reg(s, rm); |
55203189 PM |
11121 | if (rd == 13) { |
11122 | /* MOV SP, reg */ | |
11123 | store_sp_checked(s, tmp); | |
11124 | } else { | |
11125 | store_reg(s, rd, tmp); | |
11126 | } | |
99c475ab | 11127 | break; |
ebfe27c5 PM |
11128 | case 3: |
11129 | { | |
11130 | /* 0b0100_0111_xxxx_xxxx | |
11131 | * - branch [and link] exchange thumb register | |
11132 | */ | |
11133 | bool link = insn & (1 << 7); | |
11134 | ||
fb602cb7 | 11135 | if (insn & 3) { |
ebfe27c5 PM |
11136 | goto undef; |
11137 | } | |
11138 | if (link) { | |
be5e7a76 | 11139 | ARCH(5); |
ebfe27c5 | 11140 | } |
fb602cb7 PM |
11141 | if ((insn & 4)) { |
11142 | /* BXNS/BLXNS: only exists for v8M with the | |
11143 | * security extensions, and always UNDEF if NonSecure. | |
11144 | * We don't implement these in the user-only mode | |
11145 | * either (in theory you can use them from Secure User | |
11146 | * mode but they are too tied in to system emulation.) | |
11147 | */ | |
11148 | if (!s->v8m_secure || IS_USER_ONLY) { | |
11149 | goto undef; | |
11150 | } | |
11151 | if (link) { | |
3e3fa230 | 11152 | gen_blxns(s, rm); |
fb602cb7 PM |
11153 | } else { |
11154 | gen_bxns(s, rm); | |
11155 | } | |
11156 | break; | |
11157 | } | |
11158 | /* BLX/BX */ | |
ebfe27c5 PM |
11159 | tmp = load_reg(s, rm); |
11160 | if (link) { | |
99c475ab | 11161 | val = (uint32_t)s->pc | 1; |
7d1b0095 | 11162 | tmp2 = tcg_temp_new_i32(); |
b0109805 PB |
11163 | tcg_gen_movi_i32(tmp2, val); |
11164 | store_reg(s, 14, tmp2); | |
3bb8a96f PM |
11165 | gen_bx(s, tmp); |
11166 | } else { | |
11167 | /* Only BX works as exception-return, not BLX */ | |
11168 | gen_bx_excret(s, tmp); | |
99c475ab | 11169 | } |
99c475ab FB |
11170 | break; |
11171 | } | |
ebfe27c5 | 11172 | } |
99c475ab FB |
11173 | break; |
11174 | } | |
11175 | ||
a2d12f0f PM |
11176 | /* |
11177 | * 0b0100_00xx_xxxx_xxxx | |
11178 | * - Data-processing (two low registers) | |
11179 | */ | |
99c475ab FB |
11180 | rd = insn & 7; |
11181 | rm = (insn >> 3) & 7; | |
11182 | op = (insn >> 6) & 0xf; | |
11183 | if (op == 2 || op == 3 || op == 4 || op == 7) { | |
11184 | /* the shift/rotate ops want the operands backwards */ | |
11185 | val = rm; | |
11186 | rm = rd; | |
11187 | rd = val; | |
11188 | val = 1; | |
11189 | } else { | |
11190 | val = 0; | |
11191 | } | |
11192 | ||
396e467c | 11193 | if (op == 9) { /* neg */ |
7d1b0095 | 11194 | tmp = tcg_temp_new_i32(); |
396e467c FN |
11195 | tcg_gen_movi_i32(tmp, 0); |
11196 | } else if (op != 0xf) { /* mvn doesn't read its first operand */ | |
11197 | tmp = load_reg(s, rd); | |
11198 | } else { | |
f764718d | 11199 | tmp = NULL; |
396e467c | 11200 | } |
99c475ab | 11201 | |
396e467c | 11202 | tmp2 = load_reg(s, rm); |
5899f386 | 11203 | switch (op) { |
99c475ab | 11204 | case 0x0: /* and */ |
396e467c | 11205 | tcg_gen_and_i32(tmp, tmp, tmp2); |
9ee6e8bb | 11206 | if (!s->condexec_mask) |
396e467c | 11207 | gen_logic_CC(tmp); |
99c475ab FB |
11208 | break; |
11209 | case 0x1: /* eor */ | |
396e467c | 11210 | tcg_gen_xor_i32(tmp, tmp, tmp2); |
9ee6e8bb | 11211 | if (!s->condexec_mask) |
396e467c | 11212 | gen_logic_CC(tmp); |
99c475ab FB |
11213 | break; |
11214 | case 0x2: /* lsl */ | |
9ee6e8bb | 11215 | if (s->condexec_mask) { |
365af80e | 11216 | gen_shl(tmp2, tmp2, tmp); |
9ee6e8bb | 11217 | } else { |
9ef39277 | 11218 | gen_helper_shl_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 11219 | gen_logic_CC(tmp2); |
9ee6e8bb | 11220 | } |
99c475ab FB |
11221 | break; |
11222 | case 0x3: /* lsr */ | |
9ee6e8bb | 11223 | if (s->condexec_mask) { |
365af80e | 11224 | gen_shr(tmp2, tmp2, tmp); |
9ee6e8bb | 11225 | } else { |
9ef39277 | 11226 | gen_helper_shr_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 11227 | gen_logic_CC(tmp2); |
9ee6e8bb | 11228 | } |
99c475ab FB |
11229 | break; |
11230 | case 0x4: /* asr */ | |
9ee6e8bb | 11231 | if (s->condexec_mask) { |
365af80e | 11232 | gen_sar(tmp2, tmp2, tmp); |
9ee6e8bb | 11233 | } else { |
9ef39277 | 11234 | gen_helper_sar_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 11235 | gen_logic_CC(tmp2); |
9ee6e8bb | 11236 | } |
99c475ab FB |
11237 | break; |
11238 | case 0x5: /* adc */ | |
49b4c31e | 11239 | if (s->condexec_mask) { |
396e467c | 11240 | gen_adc(tmp, tmp2); |
49b4c31e RH |
11241 | } else { |
11242 | gen_adc_CC(tmp, tmp, tmp2); | |
11243 | } | |
99c475ab FB |
11244 | break; |
11245 | case 0x6: /* sbc */ | |
2de68a49 | 11246 | if (s->condexec_mask) { |
396e467c | 11247 | gen_sub_carry(tmp, tmp, tmp2); |
2de68a49 RH |
11248 | } else { |
11249 | gen_sbc_CC(tmp, tmp, tmp2); | |
11250 | } | |
99c475ab FB |
11251 | break; |
11252 | case 0x7: /* ror */ | |
9ee6e8bb | 11253 | if (s->condexec_mask) { |
f669df27 AJ |
11254 | tcg_gen_andi_i32(tmp, tmp, 0x1f); |
11255 | tcg_gen_rotr_i32(tmp2, tmp2, tmp); | |
9ee6e8bb | 11256 | } else { |
9ef39277 | 11257 | gen_helper_ror_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 11258 | gen_logic_CC(tmp2); |
9ee6e8bb | 11259 | } |
99c475ab FB |
11260 | break; |
11261 | case 0x8: /* tst */ | |
396e467c FN |
11262 | tcg_gen_and_i32(tmp, tmp, tmp2); |
11263 | gen_logic_CC(tmp); | |
99c475ab | 11264 | rd = 16; |
5899f386 | 11265 | break; |
99c475ab | 11266 | case 0x9: /* neg */ |
9ee6e8bb | 11267 | if (s->condexec_mask) |
396e467c | 11268 | tcg_gen_neg_i32(tmp, tmp2); |
9ee6e8bb | 11269 | else |
72485ec4 | 11270 | gen_sub_CC(tmp, tmp, tmp2); |
99c475ab FB |
11271 | break; |
11272 | case 0xa: /* cmp */ | |
72485ec4 | 11273 | gen_sub_CC(tmp, tmp, tmp2); |
99c475ab FB |
11274 | rd = 16; |
11275 | break; | |
11276 | case 0xb: /* cmn */ | |
72485ec4 | 11277 | gen_add_CC(tmp, tmp, tmp2); |
99c475ab FB |
11278 | rd = 16; |
11279 | break; | |
11280 | case 0xc: /* orr */ | |
396e467c | 11281 | tcg_gen_or_i32(tmp, tmp, tmp2); |
9ee6e8bb | 11282 | if (!s->condexec_mask) |
396e467c | 11283 | gen_logic_CC(tmp); |
99c475ab FB |
11284 | break; |
11285 | case 0xd: /* mul */ | |
7b2919a0 | 11286 | tcg_gen_mul_i32(tmp, tmp, tmp2); |
9ee6e8bb | 11287 | if (!s->condexec_mask) |
396e467c | 11288 | gen_logic_CC(tmp); |
99c475ab FB |
11289 | break; |
11290 | case 0xe: /* bic */ | |
f669df27 | 11291 | tcg_gen_andc_i32(tmp, tmp, tmp2); |
9ee6e8bb | 11292 | if (!s->condexec_mask) |
396e467c | 11293 | gen_logic_CC(tmp); |
99c475ab FB |
11294 | break; |
11295 | case 0xf: /* mvn */ | |
396e467c | 11296 | tcg_gen_not_i32(tmp2, tmp2); |
9ee6e8bb | 11297 | if (!s->condexec_mask) |
396e467c | 11298 | gen_logic_CC(tmp2); |
99c475ab | 11299 | val = 1; |
5899f386 | 11300 | rm = rd; |
99c475ab FB |
11301 | break; |
11302 | } | |
11303 | if (rd != 16) { | |
396e467c FN |
11304 | if (val) { |
11305 | store_reg(s, rm, tmp2); | |
11306 | if (op != 0xf) | |
7d1b0095 | 11307 | tcg_temp_free_i32(tmp); |
396e467c FN |
11308 | } else { |
11309 | store_reg(s, rd, tmp); | |
7d1b0095 | 11310 | tcg_temp_free_i32(tmp2); |
396e467c FN |
11311 | } |
11312 | } else { | |
7d1b0095 PM |
11313 | tcg_temp_free_i32(tmp); |
11314 | tcg_temp_free_i32(tmp2); | |
99c475ab FB |
11315 | } |
11316 | break; | |
11317 | ||
11318 | case 5: | |
11319 | /* load/store register offset. */ | |
11320 | rd = insn & 7; | |
11321 | rn = (insn >> 3) & 7; | |
11322 | rm = (insn >> 6) & 7; | |
11323 | op = (insn >> 9) & 7; | |
b0109805 | 11324 | addr = load_reg(s, rn); |
b26eefb6 | 11325 | tmp = load_reg(s, rm); |
b0109805 | 11326 | tcg_gen_add_i32(addr, addr, tmp); |
7d1b0095 | 11327 | tcg_temp_free_i32(tmp); |
99c475ab | 11328 | |
c40c8556 | 11329 | if (op < 3) { /* store */ |
b0109805 | 11330 | tmp = load_reg(s, rd); |
c40c8556 PM |
11331 | } else { |
11332 | tmp = tcg_temp_new_i32(); | |
11333 | } | |
99c475ab FB |
11334 | |
11335 | switch (op) { | |
11336 | case 0: /* str */ | |
9bb6558a | 11337 | gen_aa32_st32_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11338 | break; |
11339 | case 1: /* strh */ | |
9bb6558a | 11340 | gen_aa32_st16_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11341 | break; |
11342 | case 2: /* strb */ | |
9bb6558a | 11343 | gen_aa32_st8_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11344 | break; |
11345 | case 3: /* ldrsb */ | |
9bb6558a | 11346 | gen_aa32_ld8s_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11347 | break; |
11348 | case 4: /* ldr */ | |
9bb6558a | 11349 | gen_aa32_ld32u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11350 | break; |
11351 | case 5: /* ldrh */ | |
9bb6558a | 11352 | gen_aa32_ld16u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11353 | break; |
11354 | case 6: /* ldrb */ | |
9bb6558a | 11355 | gen_aa32_ld8u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11356 | break; |
11357 | case 7: /* ldrsh */ | |
9bb6558a | 11358 | gen_aa32_ld16s_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
99c475ab FB |
11359 | break; |
11360 | } | |
c40c8556 | 11361 | if (op >= 3) { /* load */ |
b0109805 | 11362 | store_reg(s, rd, tmp); |
c40c8556 PM |
11363 | } else { |
11364 | tcg_temp_free_i32(tmp); | |
11365 | } | |
7d1b0095 | 11366 | tcg_temp_free_i32(addr); |
99c475ab FB |
11367 | break; |
11368 | ||
11369 | case 6: | |
11370 | /* load/store word immediate offset */ | |
11371 | rd = insn & 7; | |
11372 | rn = (insn >> 3) & 7; | |
b0109805 | 11373 | addr = load_reg(s, rn); |
99c475ab | 11374 | val = (insn >> 4) & 0x7c; |
b0109805 | 11375 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
11376 | |
11377 | if (insn & (1 << 11)) { | |
11378 | /* load */ | |
c40c8556 | 11379 | tmp = tcg_temp_new_i32(); |
12dcc321 | 11380 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
b0109805 | 11381 | store_reg(s, rd, tmp); |
99c475ab FB |
11382 | } else { |
11383 | /* store */ | |
b0109805 | 11384 | tmp = load_reg(s, rd); |
12dcc321 | 11385 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
c40c8556 | 11386 | tcg_temp_free_i32(tmp); |
99c475ab | 11387 | } |
7d1b0095 | 11388 | tcg_temp_free_i32(addr); |
99c475ab FB |
11389 | break; |
11390 | ||
11391 | case 7: | |
11392 | /* load/store byte immediate offset */ | |
11393 | rd = insn & 7; | |
11394 | rn = (insn >> 3) & 7; | |
b0109805 | 11395 | addr = load_reg(s, rn); |
99c475ab | 11396 | val = (insn >> 6) & 0x1f; |
b0109805 | 11397 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
11398 | |
11399 | if (insn & (1 << 11)) { | |
11400 | /* load */ | |
c40c8556 | 11401 | tmp = tcg_temp_new_i32(); |
9bb6558a | 11402 | gen_aa32_ld8u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
b0109805 | 11403 | store_reg(s, rd, tmp); |
99c475ab FB |
11404 | } else { |
11405 | /* store */ | |
b0109805 | 11406 | tmp = load_reg(s, rd); |
9bb6558a | 11407 | gen_aa32_st8_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
c40c8556 | 11408 | tcg_temp_free_i32(tmp); |
99c475ab | 11409 | } |
7d1b0095 | 11410 | tcg_temp_free_i32(addr); |
99c475ab FB |
11411 | break; |
11412 | ||
11413 | case 8: | |
11414 | /* load/store halfword immediate offset */ | |
11415 | rd = insn & 7; | |
11416 | rn = (insn >> 3) & 7; | |
b0109805 | 11417 | addr = load_reg(s, rn); |
99c475ab | 11418 | val = (insn >> 5) & 0x3e; |
b0109805 | 11419 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
11420 | |
11421 | if (insn & (1 << 11)) { | |
11422 | /* load */ | |
c40c8556 | 11423 | tmp = tcg_temp_new_i32(); |
9bb6558a | 11424 | gen_aa32_ld16u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
b0109805 | 11425 | store_reg(s, rd, tmp); |
99c475ab FB |
11426 | } else { |
11427 | /* store */ | |
b0109805 | 11428 | tmp = load_reg(s, rd); |
9bb6558a | 11429 | gen_aa32_st16_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
c40c8556 | 11430 | tcg_temp_free_i32(tmp); |
99c475ab | 11431 | } |
7d1b0095 | 11432 | tcg_temp_free_i32(addr); |
99c475ab FB |
11433 | break; |
11434 | ||
11435 | case 9: | |
11436 | /* load/store from stack */ | |
11437 | rd = (insn >> 8) & 7; | |
b0109805 | 11438 | addr = load_reg(s, 13); |
99c475ab | 11439 | val = (insn & 0xff) * 4; |
b0109805 | 11440 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
11441 | |
11442 | if (insn & (1 << 11)) { | |
11443 | /* load */ | |
c40c8556 | 11444 | tmp = tcg_temp_new_i32(); |
9bb6558a | 11445 | gen_aa32_ld32u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
b0109805 | 11446 | store_reg(s, rd, tmp); |
99c475ab FB |
11447 | } else { |
11448 | /* store */ | |
b0109805 | 11449 | tmp = load_reg(s, rd); |
9bb6558a | 11450 | gen_aa32_st32_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit); |
c40c8556 | 11451 | tcg_temp_free_i32(tmp); |
99c475ab | 11452 | } |
7d1b0095 | 11453 | tcg_temp_free_i32(addr); |
99c475ab FB |
11454 | break; |
11455 | ||
11456 | case 10: | |
55203189 PM |
11457 | /* |
11458 | * 0b1010_xxxx_xxxx_xxxx | |
11459 | * - Add PC/SP (immediate) | |
11460 | */ | |
99c475ab | 11461 | rd = (insn >> 8) & 7; |
5899f386 FB |
11462 | if (insn & (1 << 11)) { |
11463 | /* SP */ | |
5e3f878a | 11464 | tmp = load_reg(s, 13); |
5899f386 FB |
11465 | } else { |
11466 | /* PC. bit 1 is ignored. */ | |
7d1b0095 | 11467 | tmp = tcg_temp_new_i32(); |
5e3f878a | 11468 | tcg_gen_movi_i32(tmp, (s->pc + 2) & ~(uint32_t)2); |
5899f386 | 11469 | } |
99c475ab | 11470 | val = (insn & 0xff) * 4; |
5e3f878a PB |
11471 | tcg_gen_addi_i32(tmp, tmp, val); |
11472 | store_reg(s, rd, tmp); | |
99c475ab FB |
11473 | break; |
11474 | ||
11475 | case 11: | |
11476 | /* misc */ | |
11477 | op = (insn >> 8) & 0xf; | |
11478 | switch (op) { | |
11479 | case 0: | |
55203189 PM |
11480 | /* |
11481 | * 0b1011_0000_xxxx_xxxx | |
11482 | * - ADD (SP plus immediate) | |
11483 | * - SUB (SP minus immediate) | |
11484 | */ | |
b26eefb6 | 11485 | tmp = load_reg(s, 13); |
99c475ab FB |
11486 | val = (insn & 0x7f) * 4; |
11487 | if (insn & (1 << 7)) | |
6a0d8a1d | 11488 | val = -(int32_t)val; |
b26eefb6 | 11489 | tcg_gen_addi_i32(tmp, tmp, val); |
55203189 | 11490 | store_sp_checked(s, tmp); |
99c475ab FB |
11491 | break; |
11492 | ||
9ee6e8bb PB |
11493 | case 2: /* sign/zero extend. */ |
11494 | ARCH(6); | |
11495 | rd = insn & 7; | |
11496 | rm = (insn >> 3) & 7; | |
b0109805 | 11497 | tmp = load_reg(s, rm); |
9ee6e8bb | 11498 | switch ((insn >> 6) & 3) { |
b0109805 PB |
11499 | case 0: gen_sxth(tmp); break; |
11500 | case 1: gen_sxtb(tmp); break; | |
11501 | case 2: gen_uxth(tmp); break; | |
11502 | case 3: gen_uxtb(tmp); break; | |
9ee6e8bb | 11503 | } |
b0109805 | 11504 | store_reg(s, rd, tmp); |
9ee6e8bb | 11505 | break; |
99c475ab | 11506 | case 4: case 5: case 0xc: case 0xd: |
aa369e5c PM |
11507 | /* |
11508 | * 0b1011_x10x_xxxx_xxxx | |
11509 | * - push/pop | |
11510 | */ | |
b0109805 | 11511 | addr = load_reg(s, 13); |
5899f386 FB |
11512 | if (insn & (1 << 8)) |
11513 | offset = 4; | |
99c475ab | 11514 | else |
5899f386 FB |
11515 | offset = 0; |
11516 | for (i = 0; i < 8; i++) { | |
11517 | if (insn & (1 << i)) | |
11518 | offset += 4; | |
11519 | } | |
11520 | if ((insn & (1 << 11)) == 0) { | |
b0109805 | 11521 | tcg_gen_addi_i32(addr, addr, -offset); |
5899f386 | 11522 | } |
aa369e5c PM |
11523 | |
11524 | if (s->v8m_stackcheck) { | |
11525 | /* | |
11526 | * Here 'addr' is the lower of "old SP" and "new SP"; | |
11527 | * if this is a pop that starts below the limit and ends | |
11528 | * above it, it is UNKNOWN whether the limit check triggers; | |
11529 | * we choose to trigger. | |
11530 | */ | |
11531 | gen_helper_v8m_stackcheck(cpu_env, addr); | |
11532 | } | |
11533 | ||
99c475ab FB |
11534 | for (i = 0; i < 8; i++) { |
11535 | if (insn & (1 << i)) { | |
11536 | if (insn & (1 << 11)) { | |
11537 | /* pop */ | |
c40c8556 | 11538 | tmp = tcg_temp_new_i32(); |
12dcc321 | 11539 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
b0109805 | 11540 | store_reg(s, i, tmp); |
99c475ab FB |
11541 | } else { |
11542 | /* push */ | |
b0109805 | 11543 | tmp = load_reg(s, i); |
12dcc321 | 11544 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
c40c8556 | 11545 | tcg_temp_free_i32(tmp); |
99c475ab | 11546 | } |
5899f386 | 11547 | /* advance to the next address. */ |
b0109805 | 11548 | tcg_gen_addi_i32(addr, addr, 4); |
99c475ab FB |
11549 | } |
11550 | } | |
f764718d | 11551 | tmp = NULL; |
99c475ab FB |
11552 | if (insn & (1 << 8)) { |
11553 | if (insn & (1 << 11)) { | |
11554 | /* pop pc */ | |
c40c8556 | 11555 | tmp = tcg_temp_new_i32(); |
12dcc321 | 11556 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
99c475ab FB |
11557 | /* don't set the pc until the rest of the instruction |
11558 | has completed */ | |
11559 | } else { | |
11560 | /* push lr */ | |
b0109805 | 11561 | tmp = load_reg(s, 14); |
12dcc321 | 11562 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
c40c8556 | 11563 | tcg_temp_free_i32(tmp); |
99c475ab | 11564 | } |
b0109805 | 11565 | tcg_gen_addi_i32(addr, addr, 4); |
99c475ab | 11566 | } |
5899f386 | 11567 | if ((insn & (1 << 11)) == 0) { |
b0109805 | 11568 | tcg_gen_addi_i32(addr, addr, -offset); |
5899f386 | 11569 | } |
99c475ab | 11570 | /* write back the new stack pointer */ |
b0109805 | 11571 | store_reg(s, 13, addr); |
99c475ab | 11572 | /* set the new PC value */ |
be5e7a76 | 11573 | if ((insn & 0x0900) == 0x0900) { |
7dcc1f89 | 11574 | store_reg_from_load(s, 15, tmp); |
be5e7a76 | 11575 | } |
99c475ab FB |
11576 | break; |
11577 | ||
9ee6e8bb PB |
11578 | case 1: case 3: case 9: case 11: /* czb */ |
11579 | rm = insn & 7; | |
d9ba4830 | 11580 | tmp = load_reg(s, rm); |
c2d9644e | 11581 | arm_gen_condlabel(s); |
9ee6e8bb | 11582 | if (insn & (1 << 11)) |
cb63669a | 11583 | tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel); |
9ee6e8bb | 11584 | else |
cb63669a | 11585 | tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, s->condlabel); |
7d1b0095 | 11586 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
11587 | offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3; |
11588 | val = (uint32_t)s->pc + 2; | |
11589 | val += offset; | |
11590 | gen_jmp(s, val); | |
11591 | break; | |
11592 | ||
11593 | case 15: /* IT, nop-hint. */ | |
11594 | if ((insn & 0xf) == 0) { | |
11595 | gen_nop_hint(s, (insn >> 4) & 0xf); | |
11596 | break; | |
11597 | } | |
11598 | /* If Then. */ | |
11599 | s->condexec_cond = (insn >> 4) & 0xe; | |
11600 | s->condexec_mask = insn & 0x1f; | |
11601 | /* No actual code generated for this insn, just setup state. */ | |
11602 | break; | |
11603 | ||
06c949e6 | 11604 | case 0xe: /* bkpt */ |
d4a2dc67 PM |
11605 | { |
11606 | int imm8 = extract32(insn, 0, 8); | |
be5e7a76 | 11607 | ARCH(5); |
c900a2e6 | 11608 | gen_exception_bkpt_insn(s, 2, syn_aa32_bkpt(imm8, true)); |
06c949e6 | 11609 | break; |
d4a2dc67 | 11610 | } |
06c949e6 | 11611 | |
19a6e31c PM |
11612 | case 0xa: /* rev, and hlt */ |
11613 | { | |
11614 | int op1 = extract32(insn, 6, 2); | |
11615 | ||
11616 | if (op1 == 2) { | |
11617 | /* HLT */ | |
11618 | int imm6 = extract32(insn, 0, 6); | |
11619 | ||
11620 | gen_hlt(s, imm6); | |
11621 | break; | |
11622 | } | |
11623 | ||
11624 | /* Otherwise this is rev */ | |
9ee6e8bb PB |
11625 | ARCH(6); |
11626 | rn = (insn >> 3) & 0x7; | |
11627 | rd = insn & 0x7; | |
b0109805 | 11628 | tmp = load_reg(s, rn); |
19a6e31c | 11629 | switch (op1) { |
66896cb8 | 11630 | case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
b0109805 PB |
11631 | case 1: gen_rev16(tmp); break; |
11632 | case 3: gen_revsh(tmp); break; | |
19a6e31c PM |
11633 | default: |
11634 | g_assert_not_reached(); | |
9ee6e8bb | 11635 | } |
b0109805 | 11636 | store_reg(s, rd, tmp); |
9ee6e8bb | 11637 | break; |
19a6e31c | 11638 | } |
9ee6e8bb | 11639 | |
d9e028c1 PM |
11640 | case 6: |
11641 | switch ((insn >> 5) & 7) { | |
11642 | case 2: | |
11643 | /* setend */ | |
11644 | ARCH(6); | |
9886ecdf PB |
11645 | if (((insn >> 3) & 1) != !!(s->be_data == MO_BE)) { |
11646 | gen_helper_setend(cpu_env); | |
dcba3a8d | 11647 | s->base.is_jmp = DISAS_UPDATE; |
d9e028c1 | 11648 | } |
9ee6e8bb | 11649 | break; |
d9e028c1 PM |
11650 | case 3: |
11651 | /* cps */ | |
11652 | ARCH(6); | |
11653 | if (IS_USER(s)) { | |
11654 | break; | |
8984bd2e | 11655 | } |
b53d8923 | 11656 | if (arm_dc_feature(s, ARM_FEATURE_M)) { |
d9e028c1 PM |
11657 | tmp = tcg_const_i32((insn & (1 << 4)) != 0); |
11658 | /* FAULTMASK */ | |
11659 | if (insn & 1) { | |
11660 | addr = tcg_const_i32(19); | |
11661 | gen_helper_v7m_msr(cpu_env, addr, tmp); | |
11662 | tcg_temp_free_i32(addr); | |
11663 | } | |
11664 | /* PRIMASK */ | |
11665 | if (insn & 2) { | |
11666 | addr = tcg_const_i32(16); | |
11667 | gen_helper_v7m_msr(cpu_env, addr, tmp); | |
11668 | tcg_temp_free_i32(addr); | |
11669 | } | |
11670 | tcg_temp_free_i32(tmp); | |
11671 | gen_lookup_tb(s); | |
11672 | } else { | |
11673 | if (insn & (1 << 4)) { | |
11674 | shift = CPSR_A | CPSR_I | CPSR_F; | |
11675 | } else { | |
11676 | shift = 0; | |
11677 | } | |
11678 | gen_set_psr_im(s, ((insn & 7) << 6), 0, shift); | |
8984bd2e | 11679 | } |
d9e028c1 PM |
11680 | break; |
11681 | default: | |
11682 | goto undef; | |
9ee6e8bb PB |
11683 | } |
11684 | break; | |
11685 | ||
99c475ab FB |
11686 | default: |
11687 | goto undef; | |
11688 | } | |
11689 | break; | |
11690 | ||
11691 | case 12: | |
a7d3970d | 11692 | { |
99c475ab | 11693 | /* load/store multiple */ |
f764718d | 11694 | TCGv_i32 loaded_var = NULL; |
99c475ab | 11695 | rn = (insn >> 8) & 0x7; |
b0109805 | 11696 | addr = load_reg(s, rn); |
99c475ab FB |
11697 | for (i = 0; i < 8; i++) { |
11698 | if (insn & (1 << i)) { | |
99c475ab FB |
11699 | if (insn & (1 << 11)) { |
11700 | /* load */ | |
c40c8556 | 11701 | tmp = tcg_temp_new_i32(); |
12dcc321 | 11702 | gen_aa32_ld32u(s, tmp, addr, get_mem_index(s)); |
a7d3970d PM |
11703 | if (i == rn) { |
11704 | loaded_var = tmp; | |
11705 | } else { | |
11706 | store_reg(s, i, tmp); | |
11707 | } | |
99c475ab FB |
11708 | } else { |
11709 | /* store */ | |
b0109805 | 11710 | tmp = load_reg(s, i); |
12dcc321 | 11711 | gen_aa32_st32(s, tmp, addr, get_mem_index(s)); |
c40c8556 | 11712 | tcg_temp_free_i32(tmp); |
99c475ab | 11713 | } |
5899f386 | 11714 | /* advance to the next address */ |
b0109805 | 11715 | tcg_gen_addi_i32(addr, addr, 4); |
99c475ab FB |
11716 | } |
11717 | } | |
b0109805 | 11718 | if ((insn & (1 << rn)) == 0) { |
a7d3970d | 11719 | /* base reg not in list: base register writeback */ |
b0109805 PB |
11720 | store_reg(s, rn, addr); |
11721 | } else { | |
a7d3970d PM |
11722 | /* base reg in list: if load, complete it now */ |
11723 | if (insn & (1 << 11)) { | |
11724 | store_reg(s, rn, loaded_var); | |
11725 | } | |
7d1b0095 | 11726 | tcg_temp_free_i32(addr); |
b0109805 | 11727 | } |
99c475ab | 11728 | break; |
a7d3970d | 11729 | } |
99c475ab FB |
11730 | case 13: |
11731 | /* conditional branch or swi */ | |
11732 | cond = (insn >> 8) & 0xf; | |
11733 | if (cond == 0xe) | |
11734 | goto undef; | |
11735 | ||
11736 | if (cond == 0xf) { | |
11737 | /* swi */ | |
eaed129d | 11738 | gen_set_pc_im(s, s->pc); |
d4a2dc67 | 11739 | s->svc_imm = extract32(insn, 0, 8); |
dcba3a8d | 11740 | s->base.is_jmp = DISAS_SWI; |
99c475ab FB |
11741 | break; |
11742 | } | |
11743 | /* generate a conditional jump to next instruction */ | |
c2d9644e | 11744 | arm_skip_unless(s, cond); |
99c475ab FB |
11745 | |
11746 | /* jump to the offset */ | |
5899f386 | 11747 | val = (uint32_t)s->pc + 2; |
99c475ab | 11748 | offset = ((int32_t)insn << 24) >> 24; |
5899f386 | 11749 | val += offset << 1; |
8aaca4c0 | 11750 | gen_jmp(s, val); |
99c475ab FB |
11751 | break; |
11752 | ||
11753 | case 14: | |
358bf29e | 11754 | if (insn & (1 << 11)) { |
296e5a0a PM |
11755 | /* thumb_insn_is_16bit() ensures we can't get here for |
11756 | * a Thumb2 CPU, so this must be a thumb1 split BL/BLX: | |
11757 | * 0b1110_1xxx_xxxx_xxxx : BLX suffix (or UNDEF) | |
11758 | */ | |
11759 | assert(!arm_dc_feature(s, ARM_FEATURE_THUMB2)); | |
11760 | ARCH(5); | |
11761 | offset = ((insn & 0x7ff) << 1); | |
11762 | tmp = load_reg(s, 14); | |
11763 | tcg_gen_addi_i32(tmp, tmp, offset); | |
11764 | tcg_gen_andi_i32(tmp, tmp, 0xfffffffc); | |
11765 | ||
11766 | tmp2 = tcg_temp_new_i32(); | |
11767 | tcg_gen_movi_i32(tmp2, s->pc | 1); | |
11768 | store_reg(s, 14, tmp2); | |
11769 | gen_bx(s, tmp); | |
358bf29e PB |
11770 | break; |
11771 | } | |
9ee6e8bb | 11772 | /* unconditional branch */ |
99c475ab FB |
11773 | val = (uint32_t)s->pc; |
11774 | offset = ((int32_t)insn << 21) >> 21; | |
11775 | val += (offset << 1) + 2; | |
8aaca4c0 | 11776 | gen_jmp(s, val); |
99c475ab FB |
11777 | break; |
11778 | ||
11779 | case 15: | |
296e5a0a PM |
11780 | /* thumb_insn_is_16bit() ensures we can't get here for |
11781 | * a Thumb2 CPU, so this must be a thumb1 split BL/BLX. | |
11782 | */ | |
11783 | assert(!arm_dc_feature(s, ARM_FEATURE_THUMB2)); | |
11784 | ||
11785 | if (insn & (1 << 11)) { | |
11786 | /* 0b1111_1xxx_xxxx_xxxx : BL suffix */ | |
11787 | offset = ((insn & 0x7ff) << 1) | 1; | |
11788 | tmp = load_reg(s, 14); | |
11789 | tcg_gen_addi_i32(tmp, tmp, offset); | |
11790 | ||
11791 | tmp2 = tcg_temp_new_i32(); | |
11792 | tcg_gen_movi_i32(tmp2, s->pc | 1); | |
11793 | store_reg(s, 14, tmp2); | |
11794 | gen_bx(s, tmp); | |
11795 | } else { | |
11796 | /* 0b1111_0xxx_xxxx_xxxx : BL/BLX prefix */ | |
11797 | uint32_t uoffset = ((int32_t)insn << 21) >> 9; | |
11798 | ||
11799 | tcg_gen_movi_i32(cpu_R[14], s->pc + 2 + uoffset); | |
11800 | } | |
9ee6e8bb | 11801 | break; |
99c475ab FB |
11802 | } |
11803 | return; | |
9ee6e8bb | 11804 | illegal_op: |
99c475ab | 11805 | undef: |
73710361 GB |
11806 | gen_exception_insn(s, 2, EXCP_UDEF, syn_uncategorized(), |
11807 | default_exception_el(s)); | |
99c475ab FB |
11808 | } |
11809 | ||
541ebcd4 PM |
11810 | static bool insn_crosses_page(CPUARMState *env, DisasContext *s) |
11811 | { | |
11812 | /* Return true if the insn at dc->pc might cross a page boundary. | |
11813 | * (False positives are OK, false negatives are not.) | |
5b8d7289 PM |
11814 | * We know this is a Thumb insn, and our caller ensures we are |
11815 | * only called if dc->pc is less than 4 bytes from the page | |
11816 | * boundary, so we cross the page if the first 16 bits indicate | |
11817 | * that this is a 32 bit insn. | |
541ebcd4 | 11818 | */ |
5b8d7289 | 11819 | uint16_t insn = arm_lduw_code(env, s->pc, s->sctlr_b); |
541ebcd4 | 11820 | |
5b8d7289 | 11821 | return !thumb_insn_is_16bit(s, insn); |
541ebcd4 PM |
11822 | } |
11823 | ||
b542683d | 11824 | static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) |
2c0262af | 11825 | { |
1d8a5535 | 11826 | DisasContext *dc = container_of(dcbase, DisasContext, base); |
9c489ea6 | 11827 | CPUARMState *env = cs->env_ptr; |
2fc0cc0e | 11828 | ARMCPU *cpu = env_archcpu(env); |
aad821ac RH |
11829 | uint32_t tb_flags = dc->base.tb->flags; |
11830 | uint32_t condexec, core_mmu_idx; | |
3b46e624 | 11831 | |
962fcbf2 | 11832 | dc->isar = &cpu->isar; |
dcba3a8d | 11833 | dc->pc = dc->base.pc_first; |
e50e6a20 | 11834 | dc->condjmp = 0; |
3926cc84 | 11835 | |
40f860cd | 11836 | dc->aarch64 = 0; |
cef9ee70 SS |
11837 | /* If we are coming from secure EL0 in a system with a 32-bit EL3, then |
11838 | * there is no secure EL1, so we route exceptions to EL3. | |
11839 | */ | |
11840 | dc->secure_routed_to_el3 = arm_feature(env, ARM_FEATURE_EL3) && | |
11841 | !arm_el_is_aa64(env, 3); | |
aad821ac RH |
11842 | dc->thumb = FIELD_EX32(tb_flags, TBFLAG_A32, THUMB); |
11843 | dc->sctlr_b = FIELD_EX32(tb_flags, TBFLAG_A32, SCTLR_B); | |
11844 | dc->be_data = FIELD_EX32(tb_flags, TBFLAG_ANY, BE_DATA) ? MO_BE : MO_LE; | |
11845 | condexec = FIELD_EX32(tb_flags, TBFLAG_A32, CONDEXEC); | |
11846 | dc->condexec_mask = (condexec & 0xf) << 1; | |
11847 | dc->condexec_cond = condexec >> 4; | |
11848 | core_mmu_idx = FIELD_EX32(tb_flags, TBFLAG_ANY, MMUIDX); | |
11849 | dc->mmu_idx = core_to_arm_mmu_idx(env, core_mmu_idx); | |
c1e37810 | 11850 | dc->current_el = arm_mmu_idx_to_el(dc->mmu_idx); |
3926cc84 | 11851 | #if !defined(CONFIG_USER_ONLY) |
c1e37810 | 11852 | dc->user = (dc->current_el == 0); |
3926cc84 | 11853 | #endif |
aad821ac RH |
11854 | dc->ns = FIELD_EX32(tb_flags, TBFLAG_A32, NS); |
11855 | dc->fp_excp_el = FIELD_EX32(tb_flags, TBFLAG_ANY, FPEXC_EL); | |
11856 | dc->vfp_enabled = FIELD_EX32(tb_flags, TBFLAG_A32, VFPEN); | |
11857 | dc->vec_len = FIELD_EX32(tb_flags, TBFLAG_A32, VECLEN); | |
ea7ac69d PM |
11858 | if (arm_feature(env, ARM_FEATURE_XSCALE)) { |
11859 | dc->c15_cpar = FIELD_EX32(tb_flags, TBFLAG_A32, XSCALE_CPAR); | |
11860 | dc->vec_stride = 0; | |
11861 | } else { | |
11862 | dc->vec_stride = FIELD_EX32(tb_flags, TBFLAG_A32, VECSTRIDE); | |
11863 | dc->c15_cpar = 0; | |
11864 | } | |
aad821ac | 11865 | dc->v7m_handler_mode = FIELD_EX32(tb_flags, TBFLAG_A32, HANDLER); |
fb602cb7 PM |
11866 | dc->v8m_secure = arm_feature(env, ARM_FEATURE_M_SECURITY) && |
11867 | regime_is_secure(env, dc->mmu_idx); | |
aad821ac | 11868 | dc->v8m_stackcheck = FIELD_EX32(tb_flags, TBFLAG_A32, STACKCHECK); |
6d60c67a | 11869 | dc->v8m_fpccr_s_wrong = FIELD_EX32(tb_flags, TBFLAG_A32, FPCCR_S_WRONG); |
6000531e PM |
11870 | dc->v7m_new_fp_ctxt_needed = |
11871 | FIELD_EX32(tb_flags, TBFLAG_A32, NEW_FP_CTXT_NEEDED); | |
e33cf0f8 | 11872 | dc->v7m_lspact = FIELD_EX32(tb_flags, TBFLAG_A32, LSPACT); |
60322b39 | 11873 | dc->cp_regs = cpu->cp_regs; |
a984e42c | 11874 | dc->features = env->features; |
40f860cd | 11875 | |
50225ad0 PM |
11876 | /* Single step state. The code-generation logic here is: |
11877 | * SS_ACTIVE == 0: | |
11878 | * generate code with no special handling for single-stepping (except | |
11879 | * that anything that can make us go to SS_ACTIVE == 1 must end the TB; | |
11880 | * this happens anyway because those changes are all system register or | |
11881 | * PSTATE writes). | |
11882 | * SS_ACTIVE == 1, PSTATE.SS == 1: (active-not-pending) | |
11883 | * emit code for one insn | |
11884 | * emit code to clear PSTATE.SS | |
11885 | * emit code to generate software step exception for completed step | |
11886 | * end TB (as usual for having generated an exception) | |
11887 | * SS_ACTIVE == 1, PSTATE.SS == 0: (active-pending) | |
11888 | * emit code to generate a software step exception | |
11889 | * end the TB | |
11890 | */ | |
aad821ac RH |
11891 | dc->ss_active = FIELD_EX32(tb_flags, TBFLAG_ANY, SS_ACTIVE); |
11892 | dc->pstate_ss = FIELD_EX32(tb_flags, TBFLAG_ANY, PSTATE_SS); | |
50225ad0 PM |
11893 | dc->is_ldex = false; |
11894 | dc->ss_same_el = false; /* Can't be true since EL_d must be AArch64 */ | |
11895 | ||
bfe7ad5b | 11896 | dc->page_start = dc->base.pc_first & TARGET_PAGE_MASK; |
1d8a5535 | 11897 | |
f7708456 RH |
11898 | /* If architectural single step active, limit to 1. */ |
11899 | if (is_singlestepping(dc)) { | |
b542683d | 11900 | dc->base.max_insns = 1; |
f7708456 RH |
11901 | } |
11902 | ||
d0264d86 RH |
11903 | /* ARM is a fixed-length ISA. Bound the number of insns to execute |
11904 | to those left on the page. */ | |
11905 | if (!dc->thumb) { | |
bfe7ad5b | 11906 | int bound = -(dc->base.pc_first | TARGET_PAGE_MASK) / 4; |
b542683d | 11907 | dc->base.max_insns = MIN(dc->base.max_insns, bound); |
d0264d86 RH |
11908 | } |
11909 | ||
d9eea52c PM |
11910 | cpu_V0 = tcg_temp_new_i64(); |
11911 | cpu_V1 = tcg_temp_new_i64(); | |
e677137d | 11912 | /* FIXME: cpu_M0 can probably be the same as cpu_V0. */ |
a7812ae4 | 11913 | cpu_M0 = tcg_temp_new_i64(); |
1d8a5535 LV |
11914 | } |
11915 | ||
b1476854 LV |
11916 | static void arm_tr_tb_start(DisasContextBase *dcbase, CPUState *cpu) |
11917 | { | |
11918 | DisasContext *dc = container_of(dcbase, DisasContext, base); | |
11919 | ||
11920 | /* A note on handling of the condexec (IT) bits: | |
11921 | * | |
11922 | * We want to avoid the overhead of having to write the updated condexec | |
11923 | * bits back to the CPUARMState for every instruction in an IT block. So: | |
11924 | * (1) if the condexec bits are not already zero then we write | |
11925 | * zero back into the CPUARMState now. This avoids complications trying | |
11926 | * to do it at the end of the block. (For example if we don't do this | |
11927 | * it's hard to identify whether we can safely skip writing condexec | |
11928 | * at the end of the TB, which we definitely want to do for the case | |
11929 | * where a TB doesn't do anything with the IT state at all.) | |
11930 | * (2) if we are going to leave the TB then we call gen_set_condexec() | |
11931 | * which will write the correct value into CPUARMState if zero is wrong. | |
11932 | * This is done both for leaving the TB at the end, and for leaving | |
11933 | * it because of an exception we know will happen, which is done in | |
11934 | * gen_exception_insn(). The latter is necessary because we need to | |
11935 | * leave the TB with the PC/IT state just prior to execution of the | |
11936 | * instruction which caused the exception. | |
11937 | * (3) if we leave the TB unexpectedly (eg a data abort on a load) | |
11938 | * then the CPUARMState will be wrong and we need to reset it. | |
11939 | * This is handled in the same way as restoration of the | |
11940 | * PC in these situations; we save the value of the condexec bits | |
11941 | * for each PC via tcg_gen_insn_start(), and restore_state_to_opc() | |
11942 | * then uses this to restore them after an exception. | |
11943 | * | |
11944 | * Note that there are no instructions which can read the condexec | |
11945 | * bits, and none which can write non-static values to them, so | |
11946 | * we don't need to care about whether CPUARMState is correct in the | |
11947 | * middle of a TB. | |
11948 | */ | |
11949 | ||
11950 | /* Reset the conditional execution bits immediately. This avoids | |
11951 | complications trying to do it at the end of the block. */ | |
11952 | if (dc->condexec_mask || dc->condexec_cond) { | |
11953 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
11954 | tcg_gen_movi_i32(tmp, 0); | |
11955 | store_cpu_field(tmp, condexec_bits); | |
11956 | } | |
11957 | } | |
11958 | ||
f62bd897 LV |
11959 | static void arm_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) |
11960 | { | |
11961 | DisasContext *dc = container_of(dcbase, DisasContext, base); | |
11962 | ||
f62bd897 LV |
11963 | tcg_gen_insn_start(dc->pc, |
11964 | (dc->condexec_cond << 4) | (dc->condexec_mask >> 1), | |
11965 | 0); | |
15fa08f8 | 11966 | dc->insn_start = tcg_last_op(); |
f62bd897 LV |
11967 | } |
11968 | ||
a68956ad LV |
11969 | static bool arm_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu, |
11970 | const CPUBreakpoint *bp) | |
11971 | { | |
11972 | DisasContext *dc = container_of(dcbase, DisasContext, base); | |
11973 | ||
11974 | if (bp->flags & BP_CPU) { | |
11975 | gen_set_condexec(dc); | |
11976 | gen_set_pc_im(dc, dc->pc); | |
11977 | gen_helper_check_breakpoints(cpu_env); | |
11978 | /* End the TB early; it's likely not going to be executed */ | |
11979 | dc->base.is_jmp = DISAS_TOO_MANY; | |
11980 | } else { | |
11981 | gen_exception_internal_insn(dc, 0, EXCP_DEBUG); | |
11982 | /* The address covered by the breakpoint must be | |
11983 | included in [tb->pc, tb->pc + tb->size) in order | |
11984 | to for it to be properly cleared -- thus we | |
11985 | increment the PC here so that the logic setting | |
11986 | tb->size below does the right thing. */ | |
11987 | /* TODO: Advance PC by correct instruction length to | |
11988 | * avoid disassembler error messages */ | |
11989 | dc->pc += 2; | |
11990 | dc->base.is_jmp = DISAS_NORETURN; | |
11991 | } | |
11992 | ||
11993 | return true; | |
11994 | } | |
11995 | ||
722ef0a5 | 11996 | static bool arm_pre_translate_insn(DisasContext *dc) |
13189a90 | 11997 | { |
13189a90 LV |
11998 | #ifdef CONFIG_USER_ONLY |
11999 | /* Intercept jump to the magic kernel page. */ | |
12000 | if (dc->pc >= 0xffff0000) { | |
12001 | /* We always get here via a jump, so know we are not in a | |
12002 | conditional execution block. */ | |
12003 | gen_exception_internal(EXCP_KERNEL_TRAP); | |
12004 | dc->base.is_jmp = DISAS_NORETURN; | |
722ef0a5 | 12005 | return true; |
13189a90 LV |
12006 | } |
12007 | #endif | |
12008 | ||
12009 | if (dc->ss_active && !dc->pstate_ss) { | |
12010 | /* Singlestep state is Active-pending. | |
12011 | * If we're in this state at the start of a TB then either | |
12012 | * a) we just took an exception to an EL which is being debugged | |
12013 | * and this is the first insn in the exception handler | |
12014 | * b) debug exceptions were masked and we just unmasked them | |
12015 | * without changing EL (eg by clearing PSTATE.D) | |
12016 | * In either case we're going to take a swstep exception in the | |
12017 | * "did not step an insn" case, and so the syndrome ISV and EX | |
12018 | * bits should be zero. | |
12019 | */ | |
12020 | assert(dc->base.num_insns == 1); | |
12021 | gen_exception(EXCP_UDEF, syn_swstep(dc->ss_same_el, 0, 0), | |
12022 | default_exception_el(dc)); | |
12023 | dc->base.is_jmp = DISAS_NORETURN; | |
722ef0a5 | 12024 | return true; |
13189a90 LV |
12025 | } |
12026 | ||
722ef0a5 RH |
12027 | return false; |
12028 | } | |
13189a90 | 12029 | |
d0264d86 | 12030 | static void arm_post_translate_insn(DisasContext *dc) |
722ef0a5 | 12031 | { |
13189a90 LV |
12032 | if (dc->condjmp && !dc->base.is_jmp) { |
12033 | gen_set_label(dc->condlabel); | |
12034 | dc->condjmp = 0; | |
12035 | } | |
13189a90 | 12036 | dc->base.pc_next = dc->pc; |
23169224 | 12037 | translator_loop_temp_check(&dc->base); |
13189a90 LV |
12038 | } |
12039 | ||
722ef0a5 RH |
12040 | static void arm_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu) |
12041 | { | |
12042 | DisasContext *dc = container_of(dcbase, DisasContext, base); | |
12043 | CPUARMState *env = cpu->env_ptr; | |
12044 | unsigned int insn; | |
12045 | ||
12046 | if (arm_pre_translate_insn(dc)) { | |
12047 | return; | |
12048 | } | |
12049 | ||
12050 | insn = arm_ldl_code(env, dc->pc, dc->sctlr_b); | |
58803318 | 12051 | dc->insn = insn; |
722ef0a5 RH |
12052 | dc->pc += 4; |
12053 | disas_arm_insn(dc, insn); | |
12054 | ||
d0264d86 RH |
12055 | arm_post_translate_insn(dc); |
12056 | ||
12057 | /* ARM is a fixed-length ISA. We performed the cross-page check | |
12058 | in init_disas_context by adjusting max_insns. */ | |
722ef0a5 RH |
12059 | } |
12060 | ||
dcf14dfb PM |
12061 | static bool thumb_insn_is_unconditional(DisasContext *s, uint32_t insn) |
12062 | { | |
12063 | /* Return true if this Thumb insn is always unconditional, | |
12064 | * even inside an IT block. This is true of only a very few | |
12065 | * instructions: BKPT, HLT, and SG. | |
12066 | * | |
12067 | * A larger class of instructions are UNPREDICTABLE if used | |
12068 | * inside an IT block; we do not need to detect those here, because | |
12069 | * what we do by default (perform the cc check and update the IT | |
12070 | * bits state machine) is a permitted CONSTRAINED UNPREDICTABLE | |
12071 | * choice for those situations. | |
12072 | * | |
12073 | * insn is either a 16-bit or a 32-bit instruction; the two are | |
12074 | * distinguishable because for the 16-bit case the top 16 bits | |
12075 | * are zeroes, and that isn't a valid 32-bit encoding. | |
12076 | */ | |
12077 | if ((insn & 0xffffff00) == 0xbe00) { | |
12078 | /* BKPT */ | |
12079 | return true; | |
12080 | } | |
12081 | ||
12082 | if ((insn & 0xffffffc0) == 0xba80 && arm_dc_feature(s, ARM_FEATURE_V8) && | |
12083 | !arm_dc_feature(s, ARM_FEATURE_M)) { | |
12084 | /* HLT: v8A only. This is unconditional even when it is going to | |
12085 | * UNDEF; see the v8A ARM ARM DDI0487B.a H3.3. | |
12086 | * For v7 cores this was a plain old undefined encoding and so | |
12087 | * honours its cc check. (We might be using the encoding as | |
12088 | * a semihosting trap, but we don't change the cc check behaviour | |
12089 | * on that account, because a debugger connected to a real v7A | |
12090 | * core and emulating semihosting traps by catching the UNDEF | |
12091 | * exception would also only see cases where the cc check passed. | |
12092 | * No guest code should be trying to do a HLT semihosting trap | |
12093 | * in an IT block anyway. | |
12094 | */ | |
12095 | return true; | |
12096 | } | |
12097 | ||
12098 | if (insn == 0xe97fe97f && arm_dc_feature(s, ARM_FEATURE_V8) && | |
12099 | arm_dc_feature(s, ARM_FEATURE_M)) { | |
12100 | /* SG: v8M only */ | |
12101 | return true; | |
12102 | } | |
12103 | ||
12104 | return false; | |
12105 | } | |
12106 | ||
722ef0a5 RH |
12107 | static void thumb_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu) |
12108 | { | |
12109 | DisasContext *dc = container_of(dcbase, DisasContext, base); | |
12110 | CPUARMState *env = cpu->env_ptr; | |
296e5a0a PM |
12111 | uint32_t insn; |
12112 | bool is_16bit; | |
722ef0a5 RH |
12113 | |
12114 | if (arm_pre_translate_insn(dc)) { | |
12115 | return; | |
12116 | } | |
12117 | ||
296e5a0a PM |
12118 | insn = arm_lduw_code(env, dc->pc, dc->sctlr_b); |
12119 | is_16bit = thumb_insn_is_16bit(dc, insn); | |
12120 | dc->pc += 2; | |
12121 | if (!is_16bit) { | |
12122 | uint32_t insn2 = arm_lduw_code(env, dc->pc, dc->sctlr_b); | |
12123 | ||
12124 | insn = insn << 16 | insn2; | |
12125 | dc->pc += 2; | |
12126 | } | |
58803318 | 12127 | dc->insn = insn; |
296e5a0a | 12128 | |
dcf14dfb | 12129 | if (dc->condexec_mask && !thumb_insn_is_unconditional(dc, insn)) { |
296e5a0a PM |
12130 | uint32_t cond = dc->condexec_cond; |
12131 | ||
12132 | if (cond != 0x0e) { /* Skip conditional when condition is AL. */ | |
c2d9644e | 12133 | arm_skip_unless(dc, cond); |
296e5a0a PM |
12134 | } |
12135 | } | |
12136 | ||
12137 | if (is_16bit) { | |
12138 | disas_thumb_insn(dc, insn); | |
12139 | } else { | |
2eea841c | 12140 | disas_thumb2_insn(dc, insn); |
296e5a0a | 12141 | } |
722ef0a5 RH |
12142 | |
12143 | /* Advance the Thumb condexec condition. */ | |
12144 | if (dc->condexec_mask) { | |
12145 | dc->condexec_cond = ((dc->condexec_cond & 0xe) | | |
12146 | ((dc->condexec_mask >> 4) & 1)); | |
12147 | dc->condexec_mask = (dc->condexec_mask << 1) & 0x1f; | |
12148 | if (dc->condexec_mask == 0) { | |
12149 | dc->condexec_cond = 0; | |
12150 | } | |
12151 | } | |
12152 | ||
d0264d86 RH |
12153 | arm_post_translate_insn(dc); |
12154 | ||
12155 | /* Thumb is a variable-length ISA. Stop translation when the next insn | |
12156 | * will touch a new page. This ensures that prefetch aborts occur at | |
12157 | * the right place. | |
12158 | * | |
12159 | * We want to stop the TB if the next insn starts in a new page, | |
12160 | * or if it spans between this page and the next. This means that | |
12161 | * if we're looking at the last halfword in the page we need to | |
12162 | * see if it's a 16-bit Thumb insn (which will fit in this TB) | |
12163 | * or a 32-bit Thumb insn (which won't). | |
12164 | * This is to avoid generating a silly TB with a single 16-bit insn | |
12165 | * in it at the end of this page (which would execute correctly | |
12166 | * but isn't very efficient). | |
12167 | */ | |
12168 | if (dc->base.is_jmp == DISAS_NEXT | |
bfe7ad5b EC |
12169 | && (dc->pc - dc->page_start >= TARGET_PAGE_SIZE |
12170 | || (dc->pc - dc->page_start >= TARGET_PAGE_SIZE - 3 | |
d0264d86 RH |
12171 | && insn_crosses_page(env, dc)))) { |
12172 | dc->base.is_jmp = DISAS_TOO_MANY; | |
12173 | } | |
722ef0a5 RH |
12174 | } |
12175 | ||
70d3c035 | 12176 | static void arm_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) |
1d8a5535 | 12177 | { |
70d3c035 | 12178 | DisasContext *dc = container_of(dcbase, DisasContext, base); |
2e70f6ef | 12179 | |
c5a49c63 | 12180 | if (tb_cflags(dc->base.tb) & CF_LAST_IO && dc->condjmp) { |
70d3c035 LV |
12181 | /* FIXME: This can theoretically happen with self-modifying code. */ |
12182 | cpu_abort(cpu, "IO on conditional branch instruction"); | |
2e70f6ef | 12183 | } |
9ee6e8bb | 12184 | |
b5ff1b31 | 12185 | /* At this stage dc->condjmp will only be set when the skipped |
9ee6e8bb PB |
12186 | instruction was a conditional branch or trap, and the PC has |
12187 | already been written. */ | |
f021b2c4 | 12188 | gen_set_condexec(dc); |
dcba3a8d | 12189 | if (dc->base.is_jmp == DISAS_BX_EXCRET) { |
3bb8a96f PM |
12190 | /* Exception return branches need some special case code at the |
12191 | * end of the TB, which is complex enough that it has to | |
12192 | * handle the single-step vs not and the condition-failed | |
12193 | * insn codepath itself. | |
12194 | */ | |
12195 | gen_bx_excret_final_code(dc); | |
12196 | } else if (unlikely(is_singlestepping(dc))) { | |
7999a5c8 | 12197 | /* Unconditional and "condition passed" instruction codepath. */ |
dcba3a8d | 12198 | switch (dc->base.is_jmp) { |
7999a5c8 | 12199 | case DISAS_SWI: |
50225ad0 | 12200 | gen_ss_advance(dc); |
73710361 GB |
12201 | gen_exception(EXCP_SWI, syn_aa32_svc(dc->svc_imm, dc->thumb), |
12202 | default_exception_el(dc)); | |
7999a5c8 SF |
12203 | break; |
12204 | case DISAS_HVC: | |
37e6456e | 12205 | gen_ss_advance(dc); |
73710361 | 12206 | gen_exception(EXCP_HVC, syn_aa32_hvc(dc->svc_imm), 2); |
7999a5c8 SF |
12207 | break; |
12208 | case DISAS_SMC: | |
37e6456e | 12209 | gen_ss_advance(dc); |
73710361 | 12210 | gen_exception(EXCP_SMC, syn_aa32_smc(), 3); |
7999a5c8 SF |
12211 | break; |
12212 | case DISAS_NEXT: | |
a68956ad | 12213 | case DISAS_TOO_MANY: |
7999a5c8 SF |
12214 | case DISAS_UPDATE: |
12215 | gen_set_pc_im(dc, dc->pc); | |
12216 | /* fall through */ | |
12217 | default: | |
5425415e PM |
12218 | /* FIXME: Single stepping a WFI insn will not halt the CPU. */ |
12219 | gen_singlestep_exception(dc); | |
a0c231e6 RH |
12220 | break; |
12221 | case DISAS_NORETURN: | |
12222 | break; | |
7999a5c8 | 12223 | } |
8aaca4c0 | 12224 | } else { |
9ee6e8bb PB |
12225 | /* While branches must always occur at the end of an IT block, |
12226 | there are a few other things that can cause us to terminate | |
65626741 | 12227 | the TB in the middle of an IT block: |
9ee6e8bb PB |
12228 | - Exception generating instructions (bkpt, swi, undefined). |
12229 | - Page boundaries. | |
12230 | - Hardware watchpoints. | |
12231 | Hardware breakpoints have already been handled and skip this code. | |
12232 | */ | |
dcba3a8d | 12233 | switch(dc->base.is_jmp) { |
8aaca4c0 | 12234 | case DISAS_NEXT: |
a68956ad | 12235 | case DISAS_TOO_MANY: |
6e256c93 | 12236 | gen_goto_tb(dc, 1, dc->pc); |
8aaca4c0 | 12237 | break; |
577bf808 | 12238 | case DISAS_JUMP: |
8a6b28c7 EC |
12239 | gen_goto_ptr(); |
12240 | break; | |
e8d52302 AB |
12241 | case DISAS_UPDATE: |
12242 | gen_set_pc_im(dc, dc->pc); | |
12243 | /* fall through */ | |
577bf808 | 12244 | default: |
8aaca4c0 | 12245 | /* indicate that the hash table must be used to find the next TB */ |
07ea28b4 | 12246 | tcg_gen_exit_tb(NULL, 0); |
8aaca4c0 | 12247 | break; |
a0c231e6 | 12248 | case DISAS_NORETURN: |
8aaca4c0 FB |
12249 | /* nothing more to generate */ |
12250 | break; | |
9ee6e8bb | 12251 | case DISAS_WFI: |
58803318 SS |
12252 | { |
12253 | TCGv_i32 tmp = tcg_const_i32((dc->thumb && | |
12254 | !(dc->insn & (1U << 31))) ? 2 : 4); | |
12255 | ||
12256 | gen_helper_wfi(cpu_env, tmp); | |
12257 | tcg_temp_free_i32(tmp); | |
84549b6d PM |
12258 | /* The helper doesn't necessarily throw an exception, but we |
12259 | * must go back to the main loop to check for interrupts anyway. | |
12260 | */ | |
07ea28b4 | 12261 | tcg_gen_exit_tb(NULL, 0); |
9ee6e8bb | 12262 | break; |
58803318 | 12263 | } |
72c1d3af PM |
12264 | case DISAS_WFE: |
12265 | gen_helper_wfe(cpu_env); | |
12266 | break; | |
c87e5a61 PM |
12267 | case DISAS_YIELD: |
12268 | gen_helper_yield(cpu_env); | |
12269 | break; | |
9ee6e8bb | 12270 | case DISAS_SWI: |
73710361 GB |
12271 | gen_exception(EXCP_SWI, syn_aa32_svc(dc->svc_imm, dc->thumb), |
12272 | default_exception_el(dc)); | |
9ee6e8bb | 12273 | break; |
37e6456e | 12274 | case DISAS_HVC: |
73710361 | 12275 | gen_exception(EXCP_HVC, syn_aa32_hvc(dc->svc_imm), 2); |
37e6456e PM |
12276 | break; |
12277 | case DISAS_SMC: | |
73710361 | 12278 | gen_exception(EXCP_SMC, syn_aa32_smc(), 3); |
37e6456e | 12279 | break; |
8aaca4c0 | 12280 | } |
f021b2c4 PM |
12281 | } |
12282 | ||
12283 | if (dc->condjmp) { | |
12284 | /* "Condition failed" instruction codepath for the branch/trap insn */ | |
12285 | gen_set_label(dc->condlabel); | |
12286 | gen_set_condexec(dc); | |
b636649f | 12287 | if (unlikely(is_singlestepping(dc))) { |
f021b2c4 PM |
12288 | gen_set_pc_im(dc, dc->pc); |
12289 | gen_singlestep_exception(dc); | |
12290 | } else { | |
6e256c93 | 12291 | gen_goto_tb(dc, 1, dc->pc); |
e50e6a20 | 12292 | } |
2c0262af | 12293 | } |
23169224 LV |
12294 | |
12295 | /* Functions above can change dc->pc, so re-align db->pc_next */ | |
12296 | dc->base.pc_next = dc->pc; | |
70d3c035 LV |
12297 | } |
12298 | ||
4013f7fc LV |
12299 | static void arm_tr_disas_log(const DisasContextBase *dcbase, CPUState *cpu) |
12300 | { | |
12301 | DisasContext *dc = container_of(dcbase, DisasContext, base); | |
12302 | ||
12303 | qemu_log("IN: %s\n", lookup_symbol(dc->base.pc_first)); | |
1d48474d | 12304 | log_target_disas(cpu, dc->base.pc_first, dc->base.tb->size); |
4013f7fc LV |
12305 | } |
12306 | ||
23169224 LV |
12307 | static const TranslatorOps arm_translator_ops = { |
12308 | .init_disas_context = arm_tr_init_disas_context, | |
12309 | .tb_start = arm_tr_tb_start, | |
12310 | .insn_start = arm_tr_insn_start, | |
12311 | .breakpoint_check = arm_tr_breakpoint_check, | |
12312 | .translate_insn = arm_tr_translate_insn, | |
12313 | .tb_stop = arm_tr_tb_stop, | |
12314 | .disas_log = arm_tr_disas_log, | |
12315 | }; | |
12316 | ||
722ef0a5 RH |
12317 | static const TranslatorOps thumb_translator_ops = { |
12318 | .init_disas_context = arm_tr_init_disas_context, | |
12319 | .tb_start = arm_tr_tb_start, | |
12320 | .insn_start = arm_tr_insn_start, | |
12321 | .breakpoint_check = arm_tr_breakpoint_check, | |
12322 | .translate_insn = thumb_tr_translate_insn, | |
12323 | .tb_stop = arm_tr_tb_stop, | |
12324 | .disas_log = arm_tr_disas_log, | |
12325 | }; | |
12326 | ||
70d3c035 | 12327 | /* generate intermediate code for basic block 'tb'. */ |
8b86d6d2 | 12328 | void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns) |
70d3c035 | 12329 | { |
23169224 LV |
12330 | DisasContext dc; |
12331 | const TranslatorOps *ops = &arm_translator_ops; | |
70d3c035 | 12332 | |
aad821ac | 12333 | if (FIELD_EX32(tb->flags, TBFLAG_A32, THUMB)) { |
722ef0a5 RH |
12334 | ops = &thumb_translator_ops; |
12335 | } | |
23169224 | 12336 | #ifdef TARGET_AARCH64 |
aad821ac | 12337 | if (FIELD_EX32(tb->flags, TBFLAG_ANY, AARCH64_STATE)) { |
23169224 | 12338 | ops = &aarch64_translator_ops; |
2c0262af FB |
12339 | } |
12340 | #endif | |
23169224 | 12341 | |
8b86d6d2 | 12342 | translator_loop(ops, &dc.base, cpu, tb, max_insns); |
2c0262af FB |
12343 | } |
12344 | ||
90c84c56 | 12345 | void arm_cpu_dump_state(CPUState *cs, FILE *f, int flags) |
2c0262af | 12346 | { |
878096ee AF |
12347 | ARMCPU *cpu = ARM_CPU(cs); |
12348 | CPUARMState *env = &cpu->env; | |
2c0262af FB |
12349 | int i; |
12350 | ||
17731115 | 12351 | if (is_a64(env)) { |
90c84c56 | 12352 | aarch64_cpu_dump_state(cs, f, flags); |
17731115 PM |
12353 | return; |
12354 | } | |
12355 | ||
2c0262af | 12356 | for(i=0;i<16;i++) { |
90c84c56 | 12357 | qemu_fprintf(f, "R%02d=%08x", i, env->regs[i]); |
2c0262af | 12358 | if ((i % 4) == 3) |
90c84c56 | 12359 | qemu_fprintf(f, "\n"); |
2c0262af | 12360 | else |
90c84c56 | 12361 | qemu_fprintf(f, " "); |
2c0262af | 12362 | } |
06e5cf7a | 12363 | |
5b906f35 PM |
12364 | if (arm_feature(env, ARM_FEATURE_M)) { |
12365 | uint32_t xpsr = xpsr_read(env); | |
12366 | const char *mode; | |
1e577cc7 PM |
12367 | const char *ns_status = ""; |
12368 | ||
12369 | if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { | |
12370 | ns_status = env->v7m.secure ? "S " : "NS "; | |
12371 | } | |
5b906f35 PM |
12372 | |
12373 | if (xpsr & XPSR_EXCP) { | |
12374 | mode = "handler"; | |
12375 | } else { | |
8bfc26ea | 12376 | if (env->v7m.control[env->v7m.secure] & R_V7M_CONTROL_NPRIV_MASK) { |
5b906f35 PM |
12377 | mode = "unpriv-thread"; |
12378 | } else { | |
12379 | mode = "priv-thread"; | |
12380 | } | |
12381 | } | |
12382 | ||
90c84c56 MA |
12383 | qemu_fprintf(f, "XPSR=%08x %c%c%c%c %c %s%s\n", |
12384 | xpsr, | |
12385 | xpsr & XPSR_N ? 'N' : '-', | |
12386 | xpsr & XPSR_Z ? 'Z' : '-', | |
12387 | xpsr & XPSR_C ? 'C' : '-', | |
12388 | xpsr & XPSR_V ? 'V' : '-', | |
12389 | xpsr & XPSR_T ? 'T' : 'A', | |
12390 | ns_status, | |
12391 | mode); | |
06e5cf7a | 12392 | } else { |
5b906f35 PM |
12393 | uint32_t psr = cpsr_read(env); |
12394 | const char *ns_status = ""; | |
12395 | ||
12396 | if (arm_feature(env, ARM_FEATURE_EL3) && | |
12397 | (psr & CPSR_M) != ARM_CPU_MODE_MON) { | |
12398 | ns_status = env->cp15.scr_el3 & SCR_NS ? "NS " : "S "; | |
12399 | } | |
12400 | ||
90c84c56 MA |
12401 | qemu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%s%d\n", |
12402 | psr, | |
12403 | psr & CPSR_N ? 'N' : '-', | |
12404 | psr & CPSR_Z ? 'Z' : '-', | |
12405 | psr & CPSR_C ? 'C' : '-', | |
12406 | psr & CPSR_V ? 'V' : '-', | |
12407 | psr & CPSR_T ? 'T' : 'A', | |
12408 | ns_status, | |
12409 | aarch32_mode_name(psr), (psr & 0x10) ? 32 : 26); | |
5b906f35 | 12410 | } |
b7bcbe95 | 12411 | |
f2617cfc PM |
12412 | if (flags & CPU_DUMP_FPU) { |
12413 | int numvfpregs = 0; | |
12414 | if (arm_feature(env, ARM_FEATURE_VFP)) { | |
12415 | numvfpregs += 16; | |
12416 | } | |
12417 | if (arm_feature(env, ARM_FEATURE_VFP3)) { | |
12418 | numvfpregs += 16; | |
12419 | } | |
12420 | for (i = 0; i < numvfpregs; i++) { | |
9a2b5256 | 12421 | uint64_t v = *aa32_vfp_dreg(env, i); |
90c84c56 MA |
12422 | qemu_fprintf(f, "s%02d=%08x s%02d=%08x d%02d=%016" PRIx64 "\n", |
12423 | i * 2, (uint32_t)v, | |
12424 | i * 2 + 1, (uint32_t)(v >> 32), | |
12425 | i, v); | |
f2617cfc | 12426 | } |
90c84c56 | 12427 | qemu_fprintf(f, "FPSCR: %08x\n", vfp_get_fpscr(env)); |
b7bcbe95 | 12428 | } |
2c0262af | 12429 | } |
a6b025d3 | 12430 | |
bad729e2 RH |
12431 | void restore_state_to_opc(CPUARMState *env, TranslationBlock *tb, |
12432 | target_ulong *data) | |
d2856f1a | 12433 | { |
3926cc84 | 12434 | if (is_a64(env)) { |
bad729e2 | 12435 | env->pc = data[0]; |
40f860cd | 12436 | env->condexec_bits = 0; |
aaa1f954 | 12437 | env->exception.syndrome = data[2] << ARM_INSN_START_WORD2_SHIFT; |
3926cc84 | 12438 | } else { |
bad729e2 RH |
12439 | env->regs[15] = data[0]; |
12440 | env->condexec_bits = data[1]; | |
aaa1f954 | 12441 | env->exception.syndrome = data[2] << ARM_INSN_START_WORD2_SHIFT; |
3926cc84 | 12442 | } |
d2856f1a | 12443 | } |