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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 FB |
20 | */ |
21 | #include <stdarg.h> | |
22 | #include <stdlib.h> | |
23 | #include <stdio.h> | |
24 | #include <string.h> | |
25 | #include <inttypes.h> | |
26 | ||
27 | #include "cpu.h" | |
76cad711 | 28 | #include "disas/disas.h" |
57fec1fe | 29 | #include "tcg-op.h" |
1de7afc9 | 30 | #include "qemu/log.h" |
1497c961 | 31 | |
7b59220e | 32 | #include "helper.h" |
1497c961 | 33 | #define GEN_HELPER 1 |
7b59220e | 34 | #include "helper.h" |
2c0262af | 35 | |
be5e7a76 DES |
36 | #define ENABLE_ARCH_4T arm_feature(env, ARM_FEATURE_V4T) |
37 | #define ENABLE_ARCH_5 arm_feature(env, ARM_FEATURE_V5) | |
38 | /* currently all emulated v5 cores are also v5TE, so don't bother */ | |
39 | #define ENABLE_ARCH_5TE arm_feature(env, ARM_FEATURE_V5) | |
9ee6e8bb PB |
40 | #define ENABLE_ARCH_5J 0 |
41 | #define ENABLE_ARCH_6 arm_feature(env, ARM_FEATURE_V6) | |
42 | #define ENABLE_ARCH_6K arm_feature(env, ARM_FEATURE_V6K) | |
43 | #define ENABLE_ARCH_6T2 arm_feature(env, ARM_FEATURE_THUMB2) | |
44 | #define ENABLE_ARCH_7 arm_feature(env, ARM_FEATURE_V7) | |
b5ff1b31 | 45 | |
86753403 | 46 | #define ARCH(x) do { if (!ENABLE_ARCH_##x) goto illegal_op; } while(0) |
b5ff1b31 | 47 | |
2c0262af FB |
48 | /* internal defines */ |
49 | typedef struct DisasContext { | |
0fa85d43 | 50 | target_ulong pc; |
2c0262af | 51 | int is_jmp; |
e50e6a20 FB |
52 | /* Nonzero if this instruction has been conditionally skipped. */ |
53 | int condjmp; | |
54 | /* The label that will be jumped to when the instruction is skipped. */ | |
55 | int condlabel; | |
b90372ad | 56 | /* Thumb-2 conditional execution bits. */ |
9ee6e8bb PB |
57 | int condexec_mask; |
58 | int condexec_cond; | |
2c0262af | 59 | struct TranslationBlock *tb; |
8aaca4c0 | 60 | int singlestep_enabled; |
5899f386 | 61 | int thumb; |
d8fd2954 | 62 | int bswap_code; |
b5ff1b31 FB |
63 | #if !defined(CONFIG_USER_ONLY) |
64 | int user; | |
65 | #endif | |
5df8bac1 | 66 | int vfp_enabled; |
69d1fc22 PM |
67 | int vec_len; |
68 | int vec_stride; | |
2c0262af FB |
69 | } DisasContext; |
70 | ||
e12ce78d PM |
71 | static uint32_t gen_opc_condexec_bits[OPC_BUF_SIZE]; |
72 | ||
b5ff1b31 FB |
73 | #if defined(CONFIG_USER_ONLY) |
74 | #define IS_USER(s) 1 | |
75 | #else | |
76 | #define IS_USER(s) (s->user) | |
77 | #endif | |
78 | ||
9ee6e8bb | 79 | /* These instructions trap after executing, so defer them until after the |
b90372ad | 80 | conditional execution state has been updated. */ |
9ee6e8bb PB |
81 | #define DISAS_WFI 4 |
82 | #define DISAS_SWI 5 | |
2c0262af | 83 | |
a7812ae4 | 84 | static TCGv_ptr cpu_env; |
ad69471c | 85 | /* We reuse the same 64-bit temporaries for efficiency. */ |
a7812ae4 | 86 | static TCGv_i64 cpu_V0, cpu_V1, cpu_M0; |
155c3eac | 87 | static TCGv_i32 cpu_R[16]; |
66c374de | 88 | static TCGv_i32 cpu_CF, cpu_NF, cpu_VF, cpu_ZF; |
426f5abc PB |
89 | static TCGv_i32 cpu_exclusive_addr; |
90 | static TCGv_i32 cpu_exclusive_val; | |
91 | static TCGv_i32 cpu_exclusive_high; | |
92 | #ifdef CONFIG_USER_ONLY | |
93 | static TCGv_i32 cpu_exclusive_test; | |
94 | static TCGv_i32 cpu_exclusive_info; | |
95 | #endif | |
ad69471c | 96 | |
b26eefb6 | 97 | /* FIXME: These should be removed. */ |
39d5492a | 98 | static TCGv_i32 cpu_F0s, cpu_F1s; |
a7812ae4 | 99 | static TCGv_i64 cpu_F0d, cpu_F1d; |
b26eefb6 | 100 | |
022c62cb | 101 | #include "exec/gen-icount.h" |
2e70f6ef | 102 | |
155c3eac FN |
103 | static const char *regnames[] = |
104 | { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
105 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "pc" }; | |
106 | ||
b26eefb6 PB |
107 | /* initialize TCG globals. */ |
108 | void arm_translate_init(void) | |
109 | { | |
155c3eac FN |
110 | int i; |
111 | ||
a7812ae4 PB |
112 | cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); |
113 | ||
155c3eac FN |
114 | for (i = 0; i < 16; i++) { |
115 | cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0, | |
0ecb72a5 | 116 | offsetof(CPUARMState, regs[i]), |
155c3eac FN |
117 | regnames[i]); |
118 | } | |
66c374de AJ |
119 | cpu_CF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, CF), "CF"); |
120 | cpu_NF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, NF), "NF"); | |
121 | cpu_VF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, VF), "VF"); | |
122 | cpu_ZF = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUARMState, ZF), "ZF"); | |
123 | ||
426f5abc | 124 | cpu_exclusive_addr = tcg_global_mem_new_i32(TCG_AREG0, |
0ecb72a5 | 125 | offsetof(CPUARMState, exclusive_addr), "exclusive_addr"); |
426f5abc | 126 | cpu_exclusive_val = tcg_global_mem_new_i32(TCG_AREG0, |
0ecb72a5 | 127 | offsetof(CPUARMState, exclusive_val), "exclusive_val"); |
426f5abc | 128 | cpu_exclusive_high = tcg_global_mem_new_i32(TCG_AREG0, |
0ecb72a5 | 129 | offsetof(CPUARMState, exclusive_high), "exclusive_high"); |
426f5abc PB |
130 | #ifdef CONFIG_USER_ONLY |
131 | cpu_exclusive_test = tcg_global_mem_new_i32(TCG_AREG0, | |
0ecb72a5 | 132 | offsetof(CPUARMState, exclusive_test), "exclusive_test"); |
426f5abc | 133 | cpu_exclusive_info = tcg_global_mem_new_i32(TCG_AREG0, |
0ecb72a5 | 134 | offsetof(CPUARMState, exclusive_info), "exclusive_info"); |
426f5abc | 135 | #endif |
155c3eac | 136 | |
a7812ae4 | 137 | #define GEN_HELPER 2 |
7b59220e | 138 | #include "helper.h" |
b26eefb6 PB |
139 | } |
140 | ||
39d5492a | 141 | static inline TCGv_i32 load_cpu_offset(int offset) |
d9ba4830 | 142 | { |
39d5492a | 143 | TCGv_i32 tmp = tcg_temp_new_i32(); |
d9ba4830 PB |
144 | tcg_gen_ld_i32(tmp, cpu_env, offset); |
145 | return tmp; | |
146 | } | |
147 | ||
0ecb72a5 | 148 | #define load_cpu_field(name) load_cpu_offset(offsetof(CPUARMState, name)) |
d9ba4830 | 149 | |
39d5492a | 150 | static inline void store_cpu_offset(TCGv_i32 var, int offset) |
d9ba4830 PB |
151 | { |
152 | tcg_gen_st_i32(var, cpu_env, offset); | |
7d1b0095 | 153 | tcg_temp_free_i32(var); |
d9ba4830 PB |
154 | } |
155 | ||
156 | #define store_cpu_field(var, name) \ | |
0ecb72a5 | 157 | store_cpu_offset(var, offsetof(CPUARMState, name)) |
d9ba4830 | 158 | |
b26eefb6 | 159 | /* Set a variable to the value of a CPU register. */ |
39d5492a | 160 | static void load_reg_var(DisasContext *s, TCGv_i32 var, int reg) |
b26eefb6 PB |
161 | { |
162 | if (reg == 15) { | |
163 | uint32_t addr; | |
b90372ad | 164 | /* normally, since we updated PC, we need only to add one insn */ |
b26eefb6 PB |
165 | if (s->thumb) |
166 | addr = (long)s->pc + 2; | |
167 | else | |
168 | addr = (long)s->pc + 4; | |
169 | tcg_gen_movi_i32(var, addr); | |
170 | } else { | |
155c3eac | 171 | tcg_gen_mov_i32(var, cpu_R[reg]); |
b26eefb6 PB |
172 | } |
173 | } | |
174 | ||
175 | /* Create a new temporary and set it to the value of a CPU register. */ | |
39d5492a | 176 | static inline TCGv_i32 load_reg(DisasContext *s, int reg) |
b26eefb6 | 177 | { |
39d5492a | 178 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b26eefb6 PB |
179 | load_reg_var(s, tmp, reg); |
180 | return tmp; | |
181 | } | |
182 | ||
183 | /* Set a CPU register. The source must be a temporary and will be | |
184 | marked as dead. */ | |
39d5492a | 185 | static void store_reg(DisasContext *s, int reg, TCGv_i32 var) |
b26eefb6 PB |
186 | { |
187 | if (reg == 15) { | |
188 | tcg_gen_andi_i32(var, var, ~1); | |
189 | s->is_jmp = DISAS_JUMP; | |
190 | } | |
155c3eac | 191 | tcg_gen_mov_i32(cpu_R[reg], var); |
7d1b0095 | 192 | tcg_temp_free_i32(var); |
b26eefb6 PB |
193 | } |
194 | ||
b26eefb6 | 195 | /* Value extensions. */ |
86831435 PB |
196 | #define gen_uxtb(var) tcg_gen_ext8u_i32(var, var) |
197 | #define gen_uxth(var) tcg_gen_ext16u_i32(var, var) | |
b26eefb6 PB |
198 | #define gen_sxtb(var) tcg_gen_ext8s_i32(var, var) |
199 | #define gen_sxth(var) tcg_gen_ext16s_i32(var, var) | |
200 | ||
1497c961 PB |
201 | #define gen_sxtb16(var) gen_helper_sxtb16(var, var) |
202 | #define gen_uxtb16(var) gen_helper_uxtb16(var, var) | |
8f01245e | 203 | |
b26eefb6 | 204 | |
39d5492a | 205 | static inline void gen_set_cpsr(TCGv_i32 var, uint32_t mask) |
b75263d6 | 206 | { |
39d5492a | 207 | TCGv_i32 tmp_mask = tcg_const_i32(mask); |
1ce94f81 | 208 | gen_helper_cpsr_write(cpu_env, var, tmp_mask); |
b75263d6 JR |
209 | tcg_temp_free_i32(tmp_mask); |
210 | } | |
d9ba4830 PB |
211 | /* Set NZCV flags from the high 4 bits of var. */ |
212 | #define gen_set_nzcv(var) gen_set_cpsr(var, CPSR_NZCV) | |
213 | ||
214 | static void gen_exception(int excp) | |
215 | { | |
39d5492a | 216 | TCGv_i32 tmp = tcg_temp_new_i32(); |
d9ba4830 | 217 | tcg_gen_movi_i32(tmp, excp); |
1ce94f81 | 218 | gen_helper_exception(cpu_env, tmp); |
7d1b0095 | 219 | tcg_temp_free_i32(tmp); |
d9ba4830 PB |
220 | } |
221 | ||
39d5492a | 222 | static void gen_smul_dual(TCGv_i32 a, TCGv_i32 b) |
3670669c | 223 | { |
39d5492a PM |
224 | TCGv_i32 tmp1 = tcg_temp_new_i32(); |
225 | TCGv_i32 tmp2 = tcg_temp_new_i32(); | |
22478e79 AZ |
226 | tcg_gen_ext16s_i32(tmp1, a); |
227 | tcg_gen_ext16s_i32(tmp2, b); | |
3670669c | 228 | tcg_gen_mul_i32(tmp1, tmp1, tmp2); |
7d1b0095 | 229 | tcg_temp_free_i32(tmp2); |
3670669c PB |
230 | tcg_gen_sari_i32(a, a, 16); |
231 | tcg_gen_sari_i32(b, b, 16); | |
232 | tcg_gen_mul_i32(b, b, a); | |
233 | tcg_gen_mov_i32(a, tmp1); | |
7d1b0095 | 234 | tcg_temp_free_i32(tmp1); |
3670669c PB |
235 | } |
236 | ||
237 | /* Byteswap each halfword. */ | |
39d5492a | 238 | static void gen_rev16(TCGv_i32 var) |
3670669c | 239 | { |
39d5492a | 240 | TCGv_i32 tmp = tcg_temp_new_i32(); |
3670669c PB |
241 | tcg_gen_shri_i32(tmp, var, 8); |
242 | tcg_gen_andi_i32(tmp, tmp, 0x00ff00ff); | |
243 | tcg_gen_shli_i32(var, var, 8); | |
244 | tcg_gen_andi_i32(var, var, 0xff00ff00); | |
245 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 246 | tcg_temp_free_i32(tmp); |
3670669c PB |
247 | } |
248 | ||
249 | /* Byteswap low halfword and sign extend. */ | |
39d5492a | 250 | static void gen_revsh(TCGv_i32 var) |
3670669c | 251 | { |
1a855029 AJ |
252 | tcg_gen_ext16u_i32(var, var); |
253 | tcg_gen_bswap16_i32(var, var); | |
254 | tcg_gen_ext16s_i32(var, var); | |
3670669c PB |
255 | } |
256 | ||
257 | /* Unsigned bitfield extract. */ | |
39d5492a | 258 | static void gen_ubfx(TCGv_i32 var, int shift, uint32_t mask) |
3670669c PB |
259 | { |
260 | if (shift) | |
261 | tcg_gen_shri_i32(var, var, shift); | |
262 | tcg_gen_andi_i32(var, var, mask); | |
263 | } | |
264 | ||
265 | /* Signed bitfield extract. */ | |
39d5492a | 266 | static void gen_sbfx(TCGv_i32 var, int shift, int width) |
3670669c PB |
267 | { |
268 | uint32_t signbit; | |
269 | ||
270 | if (shift) | |
271 | tcg_gen_sari_i32(var, var, shift); | |
272 | if (shift + width < 32) { | |
273 | signbit = 1u << (width - 1); | |
274 | tcg_gen_andi_i32(var, var, (1u << width) - 1); | |
275 | tcg_gen_xori_i32(var, var, signbit); | |
276 | tcg_gen_subi_i32(var, var, signbit); | |
277 | } | |
278 | } | |
279 | ||
838fa72d | 280 | /* Return (b << 32) + a. Mark inputs as dead */ |
39d5492a | 281 | static TCGv_i64 gen_addq_msw(TCGv_i64 a, TCGv_i32 b) |
3670669c | 282 | { |
838fa72d AJ |
283 | TCGv_i64 tmp64 = tcg_temp_new_i64(); |
284 | ||
285 | tcg_gen_extu_i32_i64(tmp64, b); | |
7d1b0095 | 286 | tcg_temp_free_i32(b); |
838fa72d AJ |
287 | tcg_gen_shli_i64(tmp64, tmp64, 32); |
288 | tcg_gen_add_i64(a, tmp64, a); | |
289 | ||
290 | tcg_temp_free_i64(tmp64); | |
291 | return a; | |
292 | } | |
293 | ||
294 | /* Return (b << 32) - a. Mark inputs as dead. */ | |
39d5492a | 295 | static TCGv_i64 gen_subq_msw(TCGv_i64 a, TCGv_i32 b) |
838fa72d AJ |
296 | { |
297 | TCGv_i64 tmp64 = tcg_temp_new_i64(); | |
298 | ||
299 | tcg_gen_extu_i32_i64(tmp64, b); | |
7d1b0095 | 300 | tcg_temp_free_i32(b); |
838fa72d AJ |
301 | tcg_gen_shli_i64(tmp64, tmp64, 32); |
302 | tcg_gen_sub_i64(a, tmp64, a); | |
303 | ||
304 | tcg_temp_free_i64(tmp64); | |
305 | return a; | |
3670669c PB |
306 | } |
307 | ||
5e3f878a | 308 | /* 32x32->64 multiply. Marks inputs as dead. */ |
39d5492a | 309 | static TCGv_i64 gen_mulu_i64_i32(TCGv_i32 a, TCGv_i32 b) |
5e3f878a | 310 | { |
39d5492a PM |
311 | TCGv_i32 lo = tcg_temp_new_i32(); |
312 | TCGv_i32 hi = tcg_temp_new_i32(); | |
831d7fe8 | 313 | TCGv_i64 ret; |
5e3f878a | 314 | |
831d7fe8 | 315 | tcg_gen_mulu2_i32(lo, hi, a, b); |
7d1b0095 | 316 | tcg_temp_free_i32(a); |
7d1b0095 | 317 | tcg_temp_free_i32(b); |
831d7fe8 RH |
318 | |
319 | ret = tcg_temp_new_i64(); | |
320 | tcg_gen_concat_i32_i64(ret, lo, hi); | |
39d5492a PM |
321 | tcg_temp_free_i32(lo); |
322 | tcg_temp_free_i32(hi); | |
831d7fe8 RH |
323 | |
324 | return ret; | |
5e3f878a PB |
325 | } |
326 | ||
39d5492a | 327 | static TCGv_i64 gen_muls_i64_i32(TCGv_i32 a, TCGv_i32 b) |
5e3f878a | 328 | { |
39d5492a PM |
329 | TCGv_i32 lo = tcg_temp_new_i32(); |
330 | TCGv_i32 hi = tcg_temp_new_i32(); | |
831d7fe8 | 331 | TCGv_i64 ret; |
5e3f878a | 332 | |
831d7fe8 | 333 | tcg_gen_muls2_i32(lo, hi, a, b); |
7d1b0095 | 334 | tcg_temp_free_i32(a); |
7d1b0095 | 335 | tcg_temp_free_i32(b); |
831d7fe8 RH |
336 | |
337 | ret = tcg_temp_new_i64(); | |
338 | tcg_gen_concat_i32_i64(ret, lo, hi); | |
39d5492a PM |
339 | tcg_temp_free_i32(lo); |
340 | tcg_temp_free_i32(hi); | |
831d7fe8 RH |
341 | |
342 | return ret; | |
5e3f878a PB |
343 | } |
344 | ||
8f01245e | 345 | /* Swap low and high halfwords. */ |
39d5492a | 346 | static void gen_swap_half(TCGv_i32 var) |
8f01245e | 347 | { |
39d5492a | 348 | TCGv_i32 tmp = tcg_temp_new_i32(); |
8f01245e PB |
349 | tcg_gen_shri_i32(tmp, var, 16); |
350 | tcg_gen_shli_i32(var, var, 16); | |
351 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 352 | tcg_temp_free_i32(tmp); |
8f01245e PB |
353 | } |
354 | ||
b26eefb6 PB |
355 | /* Dual 16-bit add. Result placed in t0 and t1 is marked as dead. |
356 | tmp = (t0 ^ t1) & 0x8000; | |
357 | t0 &= ~0x8000; | |
358 | t1 &= ~0x8000; | |
359 | t0 = (t0 + t1) ^ tmp; | |
360 | */ | |
361 | ||
39d5492a | 362 | static void gen_add16(TCGv_i32 t0, TCGv_i32 t1) |
b26eefb6 | 363 | { |
39d5492a | 364 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b26eefb6 PB |
365 | tcg_gen_xor_i32(tmp, t0, t1); |
366 | tcg_gen_andi_i32(tmp, tmp, 0x8000); | |
367 | tcg_gen_andi_i32(t0, t0, ~0x8000); | |
368 | tcg_gen_andi_i32(t1, t1, ~0x8000); | |
369 | tcg_gen_add_i32(t0, t0, t1); | |
370 | tcg_gen_xor_i32(t0, t0, tmp); | |
7d1b0095 PM |
371 | tcg_temp_free_i32(tmp); |
372 | tcg_temp_free_i32(t1); | |
b26eefb6 PB |
373 | } |
374 | ||
375 | /* Set CF to the top bit of var. */ | |
39d5492a | 376 | static void gen_set_CF_bit31(TCGv_i32 var) |
b26eefb6 | 377 | { |
66c374de | 378 | tcg_gen_shri_i32(cpu_CF, var, 31); |
b26eefb6 PB |
379 | } |
380 | ||
381 | /* Set N and Z flags from var. */ | |
39d5492a | 382 | static inline void gen_logic_CC(TCGv_i32 var) |
b26eefb6 | 383 | { |
66c374de AJ |
384 | tcg_gen_mov_i32(cpu_NF, var); |
385 | tcg_gen_mov_i32(cpu_ZF, var); | |
b26eefb6 PB |
386 | } |
387 | ||
388 | /* T0 += T1 + CF. */ | |
39d5492a | 389 | static void gen_adc(TCGv_i32 t0, TCGv_i32 t1) |
b26eefb6 | 390 | { |
396e467c | 391 | tcg_gen_add_i32(t0, t0, t1); |
66c374de | 392 | tcg_gen_add_i32(t0, t0, cpu_CF); |
b26eefb6 PB |
393 | } |
394 | ||
e9bb4aa9 | 395 | /* dest = T0 + T1 + CF. */ |
39d5492a | 396 | static void gen_add_carry(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
e9bb4aa9 | 397 | { |
e9bb4aa9 | 398 | tcg_gen_add_i32(dest, t0, t1); |
66c374de | 399 | tcg_gen_add_i32(dest, dest, cpu_CF); |
e9bb4aa9 JR |
400 | } |
401 | ||
3670669c | 402 | /* dest = T0 - T1 + CF - 1. */ |
39d5492a | 403 | static void gen_sub_carry(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
3670669c | 404 | { |
3670669c | 405 | tcg_gen_sub_i32(dest, t0, t1); |
66c374de | 406 | tcg_gen_add_i32(dest, dest, cpu_CF); |
3670669c | 407 | tcg_gen_subi_i32(dest, dest, 1); |
3670669c PB |
408 | } |
409 | ||
72485ec4 | 410 | /* dest = T0 + T1. Compute C, N, V and Z flags */ |
39d5492a | 411 | static void gen_add_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
72485ec4 | 412 | { |
39d5492a | 413 | TCGv_i32 tmp = tcg_temp_new_i32(); |
e3482cb8 RH |
414 | tcg_gen_movi_i32(tmp, 0); |
415 | tcg_gen_add2_i32(cpu_NF, cpu_CF, t0, tmp, t1, tmp); | |
72485ec4 | 416 | tcg_gen_mov_i32(cpu_ZF, cpu_NF); |
72485ec4 | 417 | tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); |
72485ec4 AJ |
418 | tcg_gen_xor_i32(tmp, t0, t1); |
419 | tcg_gen_andc_i32(cpu_VF, cpu_VF, tmp); | |
420 | tcg_temp_free_i32(tmp); | |
421 | tcg_gen_mov_i32(dest, cpu_NF); | |
422 | } | |
423 | ||
49b4c31e | 424 | /* dest = T0 + T1 + CF. Compute C, N, V and Z flags */ |
39d5492a | 425 | static void gen_adc_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
49b4c31e | 426 | { |
39d5492a | 427 | TCGv_i32 tmp = tcg_temp_new_i32(); |
49b4c31e RH |
428 | if (TCG_TARGET_HAS_add2_i32) { |
429 | tcg_gen_movi_i32(tmp, 0); | |
430 | tcg_gen_add2_i32(cpu_NF, cpu_CF, t0, tmp, cpu_CF, tmp); | |
8c3ac601 | 431 | tcg_gen_add2_i32(cpu_NF, cpu_CF, cpu_NF, cpu_CF, t1, tmp); |
49b4c31e RH |
432 | } else { |
433 | TCGv_i64 q0 = tcg_temp_new_i64(); | |
434 | TCGv_i64 q1 = tcg_temp_new_i64(); | |
435 | tcg_gen_extu_i32_i64(q0, t0); | |
436 | tcg_gen_extu_i32_i64(q1, t1); | |
437 | tcg_gen_add_i64(q0, q0, q1); | |
438 | tcg_gen_extu_i32_i64(q1, cpu_CF); | |
439 | tcg_gen_add_i64(q0, q0, q1); | |
440 | tcg_gen_extr_i64_i32(cpu_NF, cpu_CF, q0); | |
441 | tcg_temp_free_i64(q0); | |
442 | tcg_temp_free_i64(q1); | |
443 | } | |
444 | tcg_gen_mov_i32(cpu_ZF, cpu_NF); | |
445 | tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); | |
446 | tcg_gen_xor_i32(tmp, t0, t1); | |
447 | tcg_gen_andc_i32(cpu_VF, cpu_VF, tmp); | |
448 | tcg_temp_free_i32(tmp); | |
449 | tcg_gen_mov_i32(dest, cpu_NF); | |
450 | } | |
451 | ||
72485ec4 | 452 | /* dest = T0 - T1. Compute C, N, V and Z flags */ |
39d5492a | 453 | static void gen_sub_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
72485ec4 | 454 | { |
39d5492a | 455 | TCGv_i32 tmp; |
72485ec4 AJ |
456 | tcg_gen_sub_i32(cpu_NF, t0, t1); |
457 | tcg_gen_mov_i32(cpu_ZF, cpu_NF); | |
458 | tcg_gen_setcond_i32(TCG_COND_GEU, cpu_CF, t0, t1); | |
459 | tcg_gen_xor_i32(cpu_VF, cpu_NF, t0); | |
460 | tmp = tcg_temp_new_i32(); | |
461 | tcg_gen_xor_i32(tmp, t0, t1); | |
462 | tcg_gen_and_i32(cpu_VF, cpu_VF, tmp); | |
463 | tcg_temp_free_i32(tmp); | |
464 | tcg_gen_mov_i32(dest, cpu_NF); | |
465 | } | |
466 | ||
e77f0832 | 467 | /* dest = T0 + ~T1 + CF. Compute C, N, V and Z flags */ |
39d5492a | 468 | static void gen_sbc_CC(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
2de68a49 | 469 | { |
39d5492a | 470 | TCGv_i32 tmp = tcg_temp_new_i32(); |
e77f0832 RH |
471 | tcg_gen_not_i32(tmp, t1); |
472 | gen_adc_CC(dest, t0, tmp); | |
39d5492a | 473 | tcg_temp_free_i32(tmp); |
2de68a49 RH |
474 | } |
475 | ||
365af80e | 476 | #define GEN_SHIFT(name) \ |
39d5492a | 477 | static void gen_##name(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) \ |
365af80e | 478 | { \ |
39d5492a | 479 | TCGv_i32 tmp1, tmp2, tmp3; \ |
365af80e AJ |
480 | tmp1 = tcg_temp_new_i32(); \ |
481 | tcg_gen_andi_i32(tmp1, t1, 0xff); \ | |
482 | tmp2 = tcg_const_i32(0); \ | |
483 | tmp3 = tcg_const_i32(0x1f); \ | |
484 | tcg_gen_movcond_i32(TCG_COND_GTU, tmp2, tmp1, tmp3, tmp2, t0); \ | |
485 | tcg_temp_free_i32(tmp3); \ | |
486 | tcg_gen_andi_i32(tmp1, tmp1, 0x1f); \ | |
487 | tcg_gen_##name##_i32(dest, tmp2, tmp1); \ | |
488 | tcg_temp_free_i32(tmp2); \ | |
489 | tcg_temp_free_i32(tmp1); \ | |
490 | } | |
491 | GEN_SHIFT(shl) | |
492 | GEN_SHIFT(shr) | |
493 | #undef GEN_SHIFT | |
494 | ||
39d5492a | 495 | static void gen_sar(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32 t1) |
365af80e | 496 | { |
39d5492a | 497 | TCGv_i32 tmp1, tmp2; |
365af80e AJ |
498 | tmp1 = tcg_temp_new_i32(); |
499 | tcg_gen_andi_i32(tmp1, t1, 0xff); | |
500 | tmp2 = tcg_const_i32(0x1f); | |
501 | tcg_gen_movcond_i32(TCG_COND_GTU, tmp1, tmp1, tmp2, tmp2, tmp1); | |
502 | tcg_temp_free_i32(tmp2); | |
503 | tcg_gen_sar_i32(dest, t0, tmp1); | |
504 | tcg_temp_free_i32(tmp1); | |
505 | } | |
506 | ||
39d5492a | 507 | static void tcg_gen_abs_i32(TCGv_i32 dest, TCGv_i32 src) |
36c91fd1 | 508 | { |
39d5492a PM |
509 | TCGv_i32 c0 = tcg_const_i32(0); |
510 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
36c91fd1 PM |
511 | tcg_gen_neg_i32(tmp, src); |
512 | tcg_gen_movcond_i32(TCG_COND_GT, dest, src, c0, src, tmp); | |
513 | tcg_temp_free_i32(c0); | |
514 | tcg_temp_free_i32(tmp); | |
515 | } | |
ad69471c | 516 | |
39d5492a | 517 | static void shifter_out_im(TCGv_i32 var, int shift) |
b26eefb6 | 518 | { |
9a119ff6 | 519 | if (shift == 0) { |
66c374de | 520 | tcg_gen_andi_i32(cpu_CF, var, 1); |
b26eefb6 | 521 | } else { |
66c374de AJ |
522 | tcg_gen_shri_i32(cpu_CF, var, shift); |
523 | if (shift != 31) { | |
524 | tcg_gen_andi_i32(cpu_CF, cpu_CF, 1); | |
525 | } | |
9a119ff6 | 526 | } |
9a119ff6 | 527 | } |
b26eefb6 | 528 | |
9a119ff6 | 529 | /* Shift by immediate. Includes special handling for shift == 0. */ |
39d5492a PM |
530 | static inline void gen_arm_shift_im(TCGv_i32 var, int shiftop, |
531 | int shift, int flags) | |
9a119ff6 PB |
532 | { |
533 | switch (shiftop) { | |
534 | case 0: /* LSL */ | |
535 | if (shift != 0) { | |
536 | if (flags) | |
537 | shifter_out_im(var, 32 - shift); | |
538 | tcg_gen_shli_i32(var, var, shift); | |
539 | } | |
540 | break; | |
541 | case 1: /* LSR */ | |
542 | if (shift == 0) { | |
543 | if (flags) { | |
66c374de | 544 | tcg_gen_shri_i32(cpu_CF, var, 31); |
9a119ff6 PB |
545 | } |
546 | tcg_gen_movi_i32(var, 0); | |
547 | } else { | |
548 | if (flags) | |
549 | shifter_out_im(var, shift - 1); | |
550 | tcg_gen_shri_i32(var, var, shift); | |
551 | } | |
552 | break; | |
553 | case 2: /* ASR */ | |
554 | if (shift == 0) | |
555 | shift = 32; | |
556 | if (flags) | |
557 | shifter_out_im(var, shift - 1); | |
558 | if (shift == 32) | |
559 | shift = 31; | |
560 | tcg_gen_sari_i32(var, var, shift); | |
561 | break; | |
562 | case 3: /* ROR/RRX */ | |
563 | if (shift != 0) { | |
564 | if (flags) | |
565 | shifter_out_im(var, shift - 1); | |
f669df27 | 566 | tcg_gen_rotri_i32(var, var, shift); break; |
9a119ff6 | 567 | } else { |
39d5492a | 568 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b6348f29 | 569 | tcg_gen_shli_i32(tmp, cpu_CF, 31); |
9a119ff6 PB |
570 | if (flags) |
571 | shifter_out_im(var, 0); | |
572 | tcg_gen_shri_i32(var, var, 1); | |
b26eefb6 | 573 | tcg_gen_or_i32(var, var, tmp); |
7d1b0095 | 574 | tcg_temp_free_i32(tmp); |
b26eefb6 PB |
575 | } |
576 | } | |
577 | }; | |
578 | ||
39d5492a PM |
579 | static inline void gen_arm_shift_reg(TCGv_i32 var, int shiftop, |
580 | TCGv_i32 shift, int flags) | |
8984bd2e PB |
581 | { |
582 | if (flags) { | |
583 | switch (shiftop) { | |
9ef39277 BS |
584 | case 0: gen_helper_shl_cc(var, cpu_env, var, shift); break; |
585 | case 1: gen_helper_shr_cc(var, cpu_env, var, shift); break; | |
586 | case 2: gen_helper_sar_cc(var, cpu_env, var, shift); break; | |
587 | case 3: gen_helper_ror_cc(var, cpu_env, var, shift); break; | |
8984bd2e PB |
588 | } |
589 | } else { | |
590 | switch (shiftop) { | |
365af80e AJ |
591 | case 0: |
592 | gen_shl(var, var, shift); | |
593 | break; | |
594 | case 1: | |
595 | gen_shr(var, var, shift); | |
596 | break; | |
597 | case 2: | |
598 | gen_sar(var, var, shift); | |
599 | break; | |
f669df27 AJ |
600 | case 3: tcg_gen_andi_i32(shift, shift, 0x1f); |
601 | tcg_gen_rotr_i32(var, var, shift); break; | |
8984bd2e PB |
602 | } |
603 | } | |
7d1b0095 | 604 | tcg_temp_free_i32(shift); |
8984bd2e PB |
605 | } |
606 | ||
6ddbc6e4 PB |
607 | #define PAS_OP(pfx) \ |
608 | switch (op2) { \ | |
609 | case 0: gen_pas_helper(glue(pfx,add16)); break; \ | |
610 | case 1: gen_pas_helper(glue(pfx,addsubx)); break; \ | |
611 | case 2: gen_pas_helper(glue(pfx,subaddx)); break; \ | |
612 | case 3: gen_pas_helper(glue(pfx,sub16)); break; \ | |
613 | case 4: gen_pas_helper(glue(pfx,add8)); break; \ | |
614 | case 7: gen_pas_helper(glue(pfx,sub8)); break; \ | |
615 | } | |
39d5492a | 616 | static void gen_arm_parallel_addsub(int op1, int op2, TCGv_i32 a, TCGv_i32 b) |
6ddbc6e4 | 617 | { |
a7812ae4 | 618 | TCGv_ptr tmp; |
6ddbc6e4 PB |
619 | |
620 | switch (op1) { | |
621 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp) | |
622 | case 1: | |
a7812ae4 | 623 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 624 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 625 | PAS_OP(s) |
b75263d6 | 626 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
627 | break; |
628 | case 5: | |
a7812ae4 | 629 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 630 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 631 | PAS_OP(u) |
b75263d6 | 632 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
633 | break; |
634 | #undef gen_pas_helper | |
635 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b) | |
636 | case 2: | |
637 | PAS_OP(q); | |
638 | break; | |
639 | case 3: | |
640 | PAS_OP(sh); | |
641 | break; | |
642 | case 6: | |
643 | PAS_OP(uq); | |
644 | break; | |
645 | case 7: | |
646 | PAS_OP(uh); | |
647 | break; | |
648 | #undef gen_pas_helper | |
649 | } | |
650 | } | |
9ee6e8bb PB |
651 | #undef PAS_OP |
652 | ||
6ddbc6e4 PB |
653 | /* For unknown reasons Arm and Thumb-2 use arbitrarily different encodings. */ |
654 | #define PAS_OP(pfx) \ | |
ed89a2f1 | 655 | switch (op1) { \ |
6ddbc6e4 PB |
656 | case 0: gen_pas_helper(glue(pfx,add8)); break; \ |
657 | case 1: gen_pas_helper(glue(pfx,add16)); break; \ | |
658 | case 2: gen_pas_helper(glue(pfx,addsubx)); break; \ | |
659 | case 4: gen_pas_helper(glue(pfx,sub8)); break; \ | |
660 | case 5: gen_pas_helper(glue(pfx,sub16)); break; \ | |
661 | case 6: gen_pas_helper(glue(pfx,subaddx)); break; \ | |
662 | } | |
39d5492a | 663 | static void gen_thumb2_parallel_addsub(int op1, int op2, TCGv_i32 a, TCGv_i32 b) |
6ddbc6e4 | 664 | { |
a7812ae4 | 665 | TCGv_ptr tmp; |
6ddbc6e4 | 666 | |
ed89a2f1 | 667 | switch (op2) { |
6ddbc6e4 PB |
668 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp) |
669 | case 0: | |
a7812ae4 | 670 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 671 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 672 | PAS_OP(s) |
b75263d6 | 673 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
674 | break; |
675 | case 4: | |
a7812ae4 | 676 | tmp = tcg_temp_new_ptr(); |
0ecb72a5 | 677 | tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 678 | PAS_OP(u) |
b75263d6 | 679 | tcg_temp_free_ptr(tmp); |
6ddbc6e4 PB |
680 | break; |
681 | #undef gen_pas_helper | |
682 | #define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b) | |
683 | case 1: | |
684 | PAS_OP(q); | |
685 | break; | |
686 | case 2: | |
687 | PAS_OP(sh); | |
688 | break; | |
689 | case 5: | |
690 | PAS_OP(uq); | |
691 | break; | |
692 | case 6: | |
693 | PAS_OP(uh); | |
694 | break; | |
695 | #undef gen_pas_helper | |
696 | } | |
697 | } | |
9ee6e8bb PB |
698 | #undef PAS_OP |
699 | ||
d9ba4830 PB |
700 | static void gen_test_cc(int cc, int label) |
701 | { | |
39d5492a | 702 | TCGv_i32 tmp; |
d9ba4830 PB |
703 | int inv; |
704 | ||
d9ba4830 PB |
705 | switch (cc) { |
706 | case 0: /* eq: Z */ | |
66c374de | 707 | tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, label); |
d9ba4830 PB |
708 | break; |
709 | case 1: /* ne: !Z */ | |
66c374de | 710 | tcg_gen_brcondi_i32(TCG_COND_NE, cpu_ZF, 0, label); |
d9ba4830 PB |
711 | break; |
712 | case 2: /* cs: C */ | |
66c374de | 713 | tcg_gen_brcondi_i32(TCG_COND_NE, cpu_CF, 0, label); |
d9ba4830 PB |
714 | break; |
715 | case 3: /* cc: !C */ | |
66c374de | 716 | tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_CF, 0, label); |
d9ba4830 PB |
717 | break; |
718 | case 4: /* mi: N */ | |
66c374de | 719 | tcg_gen_brcondi_i32(TCG_COND_LT, cpu_NF, 0, label); |
d9ba4830 PB |
720 | break; |
721 | case 5: /* pl: !N */ | |
66c374de | 722 | tcg_gen_brcondi_i32(TCG_COND_GE, cpu_NF, 0, label); |
d9ba4830 PB |
723 | break; |
724 | case 6: /* vs: V */ | |
66c374de | 725 | tcg_gen_brcondi_i32(TCG_COND_LT, cpu_VF, 0, label); |
d9ba4830 PB |
726 | break; |
727 | case 7: /* vc: !V */ | |
66c374de | 728 | tcg_gen_brcondi_i32(TCG_COND_GE, cpu_VF, 0, label); |
d9ba4830 PB |
729 | break; |
730 | case 8: /* hi: C && !Z */ | |
731 | inv = gen_new_label(); | |
66c374de AJ |
732 | tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_CF, 0, inv); |
733 | tcg_gen_brcondi_i32(TCG_COND_NE, cpu_ZF, 0, label); | |
d9ba4830 PB |
734 | gen_set_label(inv); |
735 | break; | |
736 | case 9: /* ls: !C || Z */ | |
66c374de AJ |
737 | tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_CF, 0, label); |
738 | tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, label); | |
d9ba4830 PB |
739 | break; |
740 | case 10: /* ge: N == V -> N ^ V == 0 */ | |
66c374de AJ |
741 | tmp = tcg_temp_new_i32(); |
742 | tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); | |
cb63669a | 743 | tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label); |
66c374de | 744 | tcg_temp_free_i32(tmp); |
d9ba4830 PB |
745 | break; |
746 | case 11: /* lt: N != V -> N ^ V != 0 */ | |
66c374de AJ |
747 | tmp = tcg_temp_new_i32(); |
748 | tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); | |
cb63669a | 749 | tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label); |
66c374de | 750 | tcg_temp_free_i32(tmp); |
d9ba4830 PB |
751 | break; |
752 | case 12: /* gt: !Z && N == V */ | |
753 | inv = gen_new_label(); | |
66c374de AJ |
754 | tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, inv); |
755 | tmp = tcg_temp_new_i32(); | |
756 | tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); | |
cb63669a | 757 | tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label); |
66c374de | 758 | tcg_temp_free_i32(tmp); |
d9ba4830 PB |
759 | gen_set_label(inv); |
760 | break; | |
761 | case 13: /* le: Z || N != V */ | |
66c374de AJ |
762 | tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ZF, 0, label); |
763 | tmp = tcg_temp_new_i32(); | |
764 | tcg_gen_xor_i32(tmp, cpu_VF, cpu_NF); | |
cb63669a | 765 | tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label); |
66c374de | 766 | tcg_temp_free_i32(tmp); |
d9ba4830 PB |
767 | break; |
768 | default: | |
769 | fprintf(stderr, "Bad condition code 0x%x\n", cc); | |
770 | abort(); | |
771 | } | |
d9ba4830 | 772 | } |
2c0262af | 773 | |
b1d8e52e | 774 | static const uint8_t table_logic_cc[16] = { |
2c0262af FB |
775 | 1, /* and */ |
776 | 1, /* xor */ | |
777 | 0, /* sub */ | |
778 | 0, /* rsb */ | |
779 | 0, /* add */ | |
780 | 0, /* adc */ | |
781 | 0, /* sbc */ | |
782 | 0, /* rsc */ | |
783 | 1, /* andl */ | |
784 | 1, /* xorl */ | |
785 | 0, /* cmp */ | |
786 | 0, /* cmn */ | |
787 | 1, /* orr */ | |
788 | 1, /* mov */ | |
789 | 1, /* bic */ | |
790 | 1, /* mvn */ | |
791 | }; | |
3b46e624 | 792 | |
d9ba4830 PB |
793 | /* Set PC and Thumb state from an immediate address. */ |
794 | static inline void gen_bx_im(DisasContext *s, uint32_t addr) | |
99c475ab | 795 | { |
39d5492a | 796 | TCGv_i32 tmp; |
99c475ab | 797 | |
b26eefb6 | 798 | s->is_jmp = DISAS_UPDATE; |
d9ba4830 | 799 | if (s->thumb != (addr & 1)) { |
7d1b0095 | 800 | tmp = tcg_temp_new_i32(); |
d9ba4830 | 801 | tcg_gen_movi_i32(tmp, addr & 1); |
0ecb72a5 | 802 | tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUARMState, thumb)); |
7d1b0095 | 803 | tcg_temp_free_i32(tmp); |
d9ba4830 | 804 | } |
155c3eac | 805 | tcg_gen_movi_i32(cpu_R[15], addr & ~1); |
d9ba4830 PB |
806 | } |
807 | ||
808 | /* Set PC and Thumb state from var. var is marked as dead. */ | |
39d5492a | 809 | static inline void gen_bx(DisasContext *s, TCGv_i32 var) |
d9ba4830 | 810 | { |
d9ba4830 | 811 | s->is_jmp = DISAS_UPDATE; |
155c3eac FN |
812 | tcg_gen_andi_i32(cpu_R[15], var, ~1); |
813 | tcg_gen_andi_i32(var, var, 1); | |
814 | store_cpu_field(var, thumb); | |
d9ba4830 PB |
815 | } |
816 | ||
21aeb343 JR |
817 | /* Variant of store_reg which uses branch&exchange logic when storing |
818 | to r15 in ARM architecture v7 and above. The source must be a temporary | |
819 | and will be marked as dead. */ | |
0ecb72a5 | 820 | static inline void store_reg_bx(CPUARMState *env, DisasContext *s, |
39d5492a | 821 | int reg, TCGv_i32 var) |
21aeb343 JR |
822 | { |
823 | if (reg == 15 && ENABLE_ARCH_7) { | |
824 | gen_bx(s, var); | |
825 | } else { | |
826 | store_reg(s, reg, var); | |
827 | } | |
828 | } | |
829 | ||
be5e7a76 DES |
830 | /* Variant of store_reg which uses branch&exchange logic when storing |
831 | * to r15 in ARM architecture v5T and above. This is used for storing | |
832 | * the results of a LDR/LDM/POP into r15, and corresponds to the cases | |
833 | * in the ARM ARM which use the LoadWritePC() pseudocode function. */ | |
0ecb72a5 | 834 | static inline void store_reg_from_load(CPUARMState *env, DisasContext *s, |
39d5492a | 835 | int reg, TCGv_i32 var) |
be5e7a76 DES |
836 | { |
837 | if (reg == 15 && ENABLE_ARCH_5) { | |
838 | gen_bx(s, var); | |
839 | } else { | |
840 | store_reg(s, reg, var); | |
841 | } | |
842 | } | |
843 | ||
39d5492a | 844 | static inline TCGv_i32 gen_ld8s(TCGv_i32 addr, int index) |
b0109805 | 845 | { |
39d5492a | 846 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b0109805 PB |
847 | tcg_gen_qemu_ld8s(tmp, addr, index); |
848 | return tmp; | |
849 | } | |
39d5492a | 850 | static inline TCGv_i32 gen_ld8u(TCGv_i32 addr, int index) |
b0109805 | 851 | { |
39d5492a | 852 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b0109805 PB |
853 | tcg_gen_qemu_ld8u(tmp, addr, index); |
854 | return tmp; | |
855 | } | |
39d5492a | 856 | static inline TCGv_i32 gen_ld16s(TCGv_i32 addr, int index) |
b0109805 | 857 | { |
39d5492a | 858 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b0109805 PB |
859 | tcg_gen_qemu_ld16s(tmp, addr, index); |
860 | return tmp; | |
861 | } | |
39d5492a | 862 | static inline TCGv_i32 gen_ld16u(TCGv_i32 addr, int index) |
b0109805 | 863 | { |
39d5492a | 864 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b0109805 PB |
865 | tcg_gen_qemu_ld16u(tmp, addr, index); |
866 | return tmp; | |
867 | } | |
39d5492a | 868 | static inline TCGv_i32 gen_ld32(TCGv_i32 addr, int index) |
b0109805 | 869 | { |
39d5492a | 870 | TCGv_i32 tmp = tcg_temp_new_i32(); |
b0109805 PB |
871 | tcg_gen_qemu_ld32u(tmp, addr, index); |
872 | return tmp; | |
873 | } | |
39d5492a | 874 | static inline void gen_st8(TCGv_i32 val, TCGv_i32 addr, int index) |
b0109805 PB |
875 | { |
876 | tcg_gen_qemu_st8(val, addr, index); | |
7d1b0095 | 877 | tcg_temp_free_i32(val); |
b0109805 | 878 | } |
39d5492a | 879 | static inline void gen_st16(TCGv_i32 val, TCGv_i32 addr, int index) |
b0109805 PB |
880 | { |
881 | tcg_gen_qemu_st16(val, addr, index); | |
7d1b0095 | 882 | tcg_temp_free_i32(val); |
b0109805 | 883 | } |
39d5492a | 884 | static inline void gen_st32(TCGv_i32 val, TCGv_i32 addr, int index) |
b0109805 PB |
885 | { |
886 | tcg_gen_qemu_st32(val, addr, index); | |
7d1b0095 | 887 | tcg_temp_free_i32(val); |
b0109805 | 888 | } |
b5ff1b31 | 889 | |
5e3f878a PB |
890 | static inline void gen_set_pc_im(uint32_t val) |
891 | { | |
155c3eac | 892 | tcg_gen_movi_i32(cpu_R[15], val); |
5e3f878a PB |
893 | } |
894 | ||
b5ff1b31 FB |
895 | /* Force a TB lookup after an instruction that changes the CPU state. */ |
896 | static inline void gen_lookup_tb(DisasContext *s) | |
897 | { | |
a6445c52 | 898 | tcg_gen_movi_i32(cpu_R[15], s->pc & ~1); |
b5ff1b31 FB |
899 | s->is_jmp = DISAS_UPDATE; |
900 | } | |
901 | ||
b0109805 | 902 | static inline void gen_add_data_offset(DisasContext *s, unsigned int insn, |
39d5492a | 903 | TCGv_i32 var) |
2c0262af | 904 | { |
1e8d4eec | 905 | int val, rm, shift, shiftop; |
39d5492a | 906 | TCGv_i32 offset; |
2c0262af FB |
907 | |
908 | if (!(insn & (1 << 25))) { | |
909 | /* immediate */ | |
910 | val = insn & 0xfff; | |
911 | if (!(insn & (1 << 23))) | |
912 | val = -val; | |
537730b9 | 913 | if (val != 0) |
b0109805 | 914 | tcg_gen_addi_i32(var, var, val); |
2c0262af FB |
915 | } else { |
916 | /* shift/register */ | |
917 | rm = (insn) & 0xf; | |
918 | shift = (insn >> 7) & 0x1f; | |
1e8d4eec | 919 | shiftop = (insn >> 5) & 3; |
b26eefb6 | 920 | offset = load_reg(s, rm); |
9a119ff6 | 921 | gen_arm_shift_im(offset, shiftop, shift, 0); |
2c0262af | 922 | if (!(insn & (1 << 23))) |
b0109805 | 923 | tcg_gen_sub_i32(var, var, offset); |
2c0262af | 924 | else |
b0109805 | 925 | tcg_gen_add_i32(var, var, offset); |
7d1b0095 | 926 | tcg_temp_free_i32(offset); |
2c0262af FB |
927 | } |
928 | } | |
929 | ||
191f9a93 | 930 | static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn, |
39d5492a | 931 | int extra, TCGv_i32 var) |
2c0262af FB |
932 | { |
933 | int val, rm; | |
39d5492a | 934 | TCGv_i32 offset; |
3b46e624 | 935 | |
2c0262af FB |
936 | if (insn & (1 << 22)) { |
937 | /* immediate */ | |
938 | val = (insn & 0xf) | ((insn >> 4) & 0xf0); | |
939 | if (!(insn & (1 << 23))) | |
940 | val = -val; | |
18acad92 | 941 | val += extra; |
537730b9 | 942 | if (val != 0) |
b0109805 | 943 | tcg_gen_addi_i32(var, var, val); |
2c0262af FB |
944 | } else { |
945 | /* register */ | |
191f9a93 | 946 | if (extra) |
b0109805 | 947 | tcg_gen_addi_i32(var, var, extra); |
2c0262af | 948 | rm = (insn) & 0xf; |
b26eefb6 | 949 | offset = load_reg(s, rm); |
2c0262af | 950 | if (!(insn & (1 << 23))) |
b0109805 | 951 | tcg_gen_sub_i32(var, var, offset); |
2c0262af | 952 | else |
b0109805 | 953 | tcg_gen_add_i32(var, var, offset); |
7d1b0095 | 954 | tcg_temp_free_i32(offset); |
2c0262af FB |
955 | } |
956 | } | |
957 | ||
5aaebd13 PM |
958 | static TCGv_ptr get_fpstatus_ptr(int neon) |
959 | { | |
960 | TCGv_ptr statusptr = tcg_temp_new_ptr(); | |
961 | int offset; | |
962 | if (neon) { | |
0ecb72a5 | 963 | offset = offsetof(CPUARMState, vfp.standard_fp_status); |
5aaebd13 | 964 | } else { |
0ecb72a5 | 965 | offset = offsetof(CPUARMState, vfp.fp_status); |
5aaebd13 PM |
966 | } |
967 | tcg_gen_addi_ptr(statusptr, cpu_env, offset); | |
968 | return statusptr; | |
969 | } | |
970 | ||
4373f3ce PB |
971 | #define VFP_OP2(name) \ |
972 | static inline void gen_vfp_##name(int dp) \ | |
973 | { \ | |
ae1857ec PM |
974 | TCGv_ptr fpst = get_fpstatus_ptr(0); \ |
975 | if (dp) { \ | |
976 | gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, cpu_F1d, fpst); \ | |
977 | } else { \ | |
978 | gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, cpu_F1s, fpst); \ | |
979 | } \ | |
980 | tcg_temp_free_ptr(fpst); \ | |
b7bcbe95 FB |
981 | } |
982 | ||
4373f3ce PB |
983 | VFP_OP2(add) |
984 | VFP_OP2(sub) | |
985 | VFP_OP2(mul) | |
986 | VFP_OP2(div) | |
987 | ||
988 | #undef VFP_OP2 | |
989 | ||
605a6aed PM |
990 | static inline void gen_vfp_F1_mul(int dp) |
991 | { | |
992 | /* Like gen_vfp_mul() but put result in F1 */ | |
ae1857ec | 993 | TCGv_ptr fpst = get_fpstatus_ptr(0); |
605a6aed | 994 | if (dp) { |
ae1857ec | 995 | gen_helper_vfp_muld(cpu_F1d, cpu_F0d, cpu_F1d, fpst); |
605a6aed | 996 | } else { |
ae1857ec | 997 | gen_helper_vfp_muls(cpu_F1s, cpu_F0s, cpu_F1s, fpst); |
605a6aed | 998 | } |
ae1857ec | 999 | tcg_temp_free_ptr(fpst); |
605a6aed PM |
1000 | } |
1001 | ||
1002 | static inline void gen_vfp_F1_neg(int dp) | |
1003 | { | |
1004 | /* Like gen_vfp_neg() but put result in F1 */ | |
1005 | if (dp) { | |
1006 | gen_helper_vfp_negd(cpu_F1d, cpu_F0d); | |
1007 | } else { | |
1008 | gen_helper_vfp_negs(cpu_F1s, cpu_F0s); | |
1009 | } | |
1010 | } | |
1011 | ||
4373f3ce PB |
1012 | static inline void gen_vfp_abs(int dp) |
1013 | { | |
1014 | if (dp) | |
1015 | gen_helper_vfp_absd(cpu_F0d, cpu_F0d); | |
1016 | else | |
1017 | gen_helper_vfp_abss(cpu_F0s, cpu_F0s); | |
1018 | } | |
1019 | ||
1020 | static inline void gen_vfp_neg(int dp) | |
1021 | { | |
1022 | if (dp) | |
1023 | gen_helper_vfp_negd(cpu_F0d, cpu_F0d); | |
1024 | else | |
1025 | gen_helper_vfp_negs(cpu_F0s, cpu_F0s); | |
1026 | } | |
1027 | ||
1028 | static inline void gen_vfp_sqrt(int dp) | |
1029 | { | |
1030 | if (dp) | |
1031 | gen_helper_vfp_sqrtd(cpu_F0d, cpu_F0d, cpu_env); | |
1032 | else | |
1033 | gen_helper_vfp_sqrts(cpu_F0s, cpu_F0s, cpu_env); | |
1034 | } | |
1035 | ||
1036 | static inline void gen_vfp_cmp(int dp) | |
1037 | { | |
1038 | if (dp) | |
1039 | gen_helper_vfp_cmpd(cpu_F0d, cpu_F1d, cpu_env); | |
1040 | else | |
1041 | gen_helper_vfp_cmps(cpu_F0s, cpu_F1s, cpu_env); | |
1042 | } | |
1043 | ||
1044 | static inline void gen_vfp_cmpe(int dp) | |
1045 | { | |
1046 | if (dp) | |
1047 | gen_helper_vfp_cmped(cpu_F0d, cpu_F1d, cpu_env); | |
1048 | else | |
1049 | gen_helper_vfp_cmpes(cpu_F0s, cpu_F1s, cpu_env); | |
1050 | } | |
1051 | ||
1052 | static inline void gen_vfp_F1_ld0(int dp) | |
1053 | { | |
1054 | if (dp) | |
5b340b51 | 1055 | tcg_gen_movi_i64(cpu_F1d, 0); |
4373f3ce | 1056 | else |
5b340b51 | 1057 | tcg_gen_movi_i32(cpu_F1s, 0); |
4373f3ce PB |
1058 | } |
1059 | ||
5500b06c PM |
1060 | #define VFP_GEN_ITOF(name) \ |
1061 | static inline void gen_vfp_##name(int dp, int neon) \ | |
1062 | { \ | |
5aaebd13 | 1063 | TCGv_ptr statusptr = get_fpstatus_ptr(neon); \ |
5500b06c PM |
1064 | if (dp) { \ |
1065 | gen_helper_vfp_##name##d(cpu_F0d, cpu_F0s, statusptr); \ | |
1066 | } else { \ | |
1067 | gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, statusptr); \ | |
1068 | } \ | |
b7fa9214 | 1069 | tcg_temp_free_ptr(statusptr); \ |
4373f3ce PB |
1070 | } |
1071 | ||
5500b06c PM |
1072 | VFP_GEN_ITOF(uito) |
1073 | VFP_GEN_ITOF(sito) | |
1074 | #undef VFP_GEN_ITOF | |
4373f3ce | 1075 | |
5500b06c PM |
1076 | #define VFP_GEN_FTOI(name) \ |
1077 | static inline void gen_vfp_##name(int dp, int neon) \ | |
1078 | { \ | |
5aaebd13 | 1079 | TCGv_ptr statusptr = get_fpstatus_ptr(neon); \ |
5500b06c PM |
1080 | if (dp) { \ |
1081 | gen_helper_vfp_##name##d(cpu_F0s, cpu_F0d, statusptr); \ | |
1082 | } else { \ | |
1083 | gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, statusptr); \ | |
1084 | } \ | |
b7fa9214 | 1085 | tcg_temp_free_ptr(statusptr); \ |
4373f3ce PB |
1086 | } |
1087 | ||
5500b06c PM |
1088 | VFP_GEN_FTOI(toui) |
1089 | VFP_GEN_FTOI(touiz) | |
1090 | VFP_GEN_FTOI(tosi) | |
1091 | VFP_GEN_FTOI(tosiz) | |
1092 | #undef VFP_GEN_FTOI | |
4373f3ce PB |
1093 | |
1094 | #define VFP_GEN_FIX(name) \ | |
5500b06c | 1095 | static inline void gen_vfp_##name(int dp, int shift, int neon) \ |
4373f3ce | 1096 | { \ |
39d5492a | 1097 | TCGv_i32 tmp_shift = tcg_const_i32(shift); \ |
5aaebd13 | 1098 | TCGv_ptr statusptr = get_fpstatus_ptr(neon); \ |
5500b06c PM |
1099 | if (dp) { \ |
1100 | gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, tmp_shift, statusptr); \ | |
1101 | } else { \ | |
1102 | gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, tmp_shift, statusptr); \ | |
1103 | } \ | |
b75263d6 | 1104 | tcg_temp_free_i32(tmp_shift); \ |
b7fa9214 | 1105 | tcg_temp_free_ptr(statusptr); \ |
9ee6e8bb | 1106 | } |
4373f3ce PB |
1107 | VFP_GEN_FIX(tosh) |
1108 | VFP_GEN_FIX(tosl) | |
1109 | VFP_GEN_FIX(touh) | |
1110 | VFP_GEN_FIX(toul) | |
1111 | VFP_GEN_FIX(shto) | |
1112 | VFP_GEN_FIX(slto) | |
1113 | VFP_GEN_FIX(uhto) | |
1114 | VFP_GEN_FIX(ulto) | |
1115 | #undef VFP_GEN_FIX | |
9ee6e8bb | 1116 | |
39d5492a | 1117 | static inline void gen_vfp_ld(DisasContext *s, int dp, TCGv_i32 addr) |
b5ff1b31 FB |
1118 | { |
1119 | if (dp) | |
312eea9f | 1120 | tcg_gen_qemu_ld64(cpu_F0d, addr, IS_USER(s)); |
b5ff1b31 | 1121 | else |
312eea9f | 1122 | tcg_gen_qemu_ld32u(cpu_F0s, addr, IS_USER(s)); |
b5ff1b31 FB |
1123 | } |
1124 | ||
39d5492a | 1125 | static inline void gen_vfp_st(DisasContext *s, int dp, TCGv_i32 addr) |
b5ff1b31 FB |
1126 | { |
1127 | if (dp) | |
312eea9f | 1128 | tcg_gen_qemu_st64(cpu_F0d, addr, IS_USER(s)); |
b5ff1b31 | 1129 | else |
312eea9f | 1130 | tcg_gen_qemu_st32(cpu_F0s, addr, IS_USER(s)); |
b5ff1b31 FB |
1131 | } |
1132 | ||
8e96005d FB |
1133 | static inline long |
1134 | vfp_reg_offset (int dp, int reg) | |
1135 | { | |
1136 | if (dp) | |
1137 | return offsetof(CPUARMState, vfp.regs[reg]); | |
1138 | else if (reg & 1) { | |
1139 | return offsetof(CPUARMState, vfp.regs[reg >> 1]) | |
1140 | + offsetof(CPU_DoubleU, l.upper); | |
1141 | } else { | |
1142 | return offsetof(CPUARMState, vfp.regs[reg >> 1]) | |
1143 | + offsetof(CPU_DoubleU, l.lower); | |
1144 | } | |
1145 | } | |
9ee6e8bb PB |
1146 | |
1147 | /* Return the offset of a 32-bit piece of a NEON register. | |
1148 | zero is the least significant end of the register. */ | |
1149 | static inline long | |
1150 | neon_reg_offset (int reg, int n) | |
1151 | { | |
1152 | int sreg; | |
1153 | sreg = reg * 2 + n; | |
1154 | return vfp_reg_offset(0, sreg); | |
1155 | } | |
1156 | ||
39d5492a | 1157 | static TCGv_i32 neon_load_reg(int reg, int pass) |
8f8e3aa4 | 1158 | { |
39d5492a | 1159 | TCGv_i32 tmp = tcg_temp_new_i32(); |
8f8e3aa4 PB |
1160 | tcg_gen_ld_i32(tmp, cpu_env, neon_reg_offset(reg, pass)); |
1161 | return tmp; | |
1162 | } | |
1163 | ||
39d5492a | 1164 | static void neon_store_reg(int reg, int pass, TCGv_i32 var) |
8f8e3aa4 PB |
1165 | { |
1166 | tcg_gen_st_i32(var, cpu_env, neon_reg_offset(reg, pass)); | |
7d1b0095 | 1167 | tcg_temp_free_i32(var); |
8f8e3aa4 PB |
1168 | } |
1169 | ||
a7812ae4 | 1170 | static inline void neon_load_reg64(TCGv_i64 var, int reg) |
ad69471c PB |
1171 | { |
1172 | tcg_gen_ld_i64(var, cpu_env, vfp_reg_offset(1, reg)); | |
1173 | } | |
1174 | ||
a7812ae4 | 1175 | static inline void neon_store_reg64(TCGv_i64 var, int reg) |
ad69471c PB |
1176 | { |
1177 | tcg_gen_st_i64(var, cpu_env, vfp_reg_offset(1, reg)); | |
1178 | } | |
1179 | ||
4373f3ce PB |
1180 | #define tcg_gen_ld_f32 tcg_gen_ld_i32 |
1181 | #define tcg_gen_ld_f64 tcg_gen_ld_i64 | |
1182 | #define tcg_gen_st_f32 tcg_gen_st_i32 | |
1183 | #define tcg_gen_st_f64 tcg_gen_st_i64 | |
1184 | ||
b7bcbe95 FB |
1185 | static inline void gen_mov_F0_vreg(int dp, int reg) |
1186 | { | |
1187 | if (dp) | |
4373f3ce | 1188 | tcg_gen_ld_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg)); |
b7bcbe95 | 1189 | else |
4373f3ce | 1190 | tcg_gen_ld_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg)); |
b7bcbe95 FB |
1191 | } |
1192 | ||
1193 | static inline void gen_mov_F1_vreg(int dp, int reg) | |
1194 | { | |
1195 | if (dp) | |
4373f3ce | 1196 | tcg_gen_ld_f64(cpu_F1d, cpu_env, vfp_reg_offset(dp, reg)); |
b7bcbe95 | 1197 | else |
4373f3ce | 1198 | tcg_gen_ld_f32(cpu_F1s, cpu_env, vfp_reg_offset(dp, reg)); |
b7bcbe95 FB |
1199 | } |
1200 | ||
1201 | static inline void gen_mov_vreg_F0(int dp, int reg) | |
1202 | { | |
1203 | if (dp) | |
4373f3ce | 1204 | tcg_gen_st_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg)); |
b7bcbe95 | 1205 | else |
4373f3ce | 1206 | tcg_gen_st_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg)); |
b7bcbe95 FB |
1207 | } |
1208 | ||
18c9b560 AZ |
1209 | #define ARM_CP_RW_BIT (1 << 20) |
1210 | ||
a7812ae4 | 1211 | static inline void iwmmxt_load_reg(TCGv_i64 var, int reg) |
e677137d | 1212 | { |
0ecb72a5 | 1213 | tcg_gen_ld_i64(var, cpu_env, offsetof(CPUARMState, iwmmxt.regs[reg])); |
e677137d PB |
1214 | } |
1215 | ||
a7812ae4 | 1216 | static inline void iwmmxt_store_reg(TCGv_i64 var, int reg) |
e677137d | 1217 | { |
0ecb72a5 | 1218 | tcg_gen_st_i64(var, cpu_env, offsetof(CPUARMState, iwmmxt.regs[reg])); |
e677137d PB |
1219 | } |
1220 | ||
39d5492a | 1221 | static inline TCGv_i32 iwmmxt_load_creg(int reg) |
e677137d | 1222 | { |
39d5492a | 1223 | TCGv_i32 var = tcg_temp_new_i32(); |
0ecb72a5 | 1224 | tcg_gen_ld_i32(var, cpu_env, offsetof(CPUARMState, iwmmxt.cregs[reg])); |
da6b5335 | 1225 | return var; |
e677137d PB |
1226 | } |
1227 | ||
39d5492a | 1228 | static inline void iwmmxt_store_creg(int reg, TCGv_i32 var) |
e677137d | 1229 | { |
0ecb72a5 | 1230 | tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, iwmmxt.cregs[reg])); |
7d1b0095 | 1231 | tcg_temp_free_i32(var); |
e677137d PB |
1232 | } |
1233 | ||
1234 | static inline void gen_op_iwmmxt_movq_wRn_M0(int rn) | |
1235 | { | |
1236 | iwmmxt_store_reg(cpu_M0, rn); | |
1237 | } | |
1238 | ||
1239 | static inline void gen_op_iwmmxt_movq_M0_wRn(int rn) | |
1240 | { | |
1241 | iwmmxt_load_reg(cpu_M0, rn); | |
1242 | } | |
1243 | ||
1244 | static inline void gen_op_iwmmxt_orq_M0_wRn(int rn) | |
1245 | { | |
1246 | iwmmxt_load_reg(cpu_V1, rn); | |
1247 | tcg_gen_or_i64(cpu_M0, cpu_M0, cpu_V1); | |
1248 | } | |
1249 | ||
1250 | static inline void gen_op_iwmmxt_andq_M0_wRn(int rn) | |
1251 | { | |
1252 | iwmmxt_load_reg(cpu_V1, rn); | |
1253 | tcg_gen_and_i64(cpu_M0, cpu_M0, cpu_V1); | |
1254 | } | |
1255 | ||
1256 | static inline void gen_op_iwmmxt_xorq_M0_wRn(int rn) | |
1257 | { | |
1258 | iwmmxt_load_reg(cpu_V1, rn); | |
1259 | tcg_gen_xor_i64(cpu_M0, cpu_M0, cpu_V1); | |
1260 | } | |
1261 | ||
1262 | #define IWMMXT_OP(name) \ | |
1263 | static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ | |
1264 | { \ | |
1265 | iwmmxt_load_reg(cpu_V1, rn); \ | |
1266 | gen_helper_iwmmxt_##name(cpu_M0, cpu_M0, cpu_V1); \ | |
1267 | } | |
1268 | ||
477955bd PM |
1269 | #define IWMMXT_OP_ENV(name) \ |
1270 | static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \ | |
1271 | { \ | |
1272 | iwmmxt_load_reg(cpu_V1, rn); \ | |
1273 | gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0, cpu_V1); \ | |
1274 | } | |
1275 | ||
1276 | #define IWMMXT_OP_ENV_SIZE(name) \ | |
1277 | IWMMXT_OP_ENV(name##b) \ | |
1278 | IWMMXT_OP_ENV(name##w) \ | |
1279 | IWMMXT_OP_ENV(name##l) | |
e677137d | 1280 | |
477955bd | 1281 | #define IWMMXT_OP_ENV1(name) \ |
e677137d PB |
1282 | static inline void gen_op_iwmmxt_##name##_M0(void) \ |
1283 | { \ | |
477955bd | 1284 | gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0); \ |
e677137d PB |
1285 | } |
1286 | ||
1287 | IWMMXT_OP(maddsq) | |
1288 | IWMMXT_OP(madduq) | |
1289 | IWMMXT_OP(sadb) | |
1290 | IWMMXT_OP(sadw) | |
1291 | IWMMXT_OP(mulslw) | |
1292 | IWMMXT_OP(mulshw) | |
1293 | IWMMXT_OP(mululw) | |
1294 | IWMMXT_OP(muluhw) | |
1295 | IWMMXT_OP(macsw) | |
1296 | IWMMXT_OP(macuw) | |
1297 | ||
477955bd PM |
1298 | IWMMXT_OP_ENV_SIZE(unpackl) |
1299 | IWMMXT_OP_ENV_SIZE(unpackh) | |
1300 | ||
1301 | IWMMXT_OP_ENV1(unpacklub) | |
1302 | IWMMXT_OP_ENV1(unpackluw) | |
1303 | IWMMXT_OP_ENV1(unpacklul) | |
1304 | IWMMXT_OP_ENV1(unpackhub) | |
1305 | IWMMXT_OP_ENV1(unpackhuw) | |
1306 | IWMMXT_OP_ENV1(unpackhul) | |
1307 | IWMMXT_OP_ENV1(unpacklsb) | |
1308 | IWMMXT_OP_ENV1(unpacklsw) | |
1309 | IWMMXT_OP_ENV1(unpacklsl) | |
1310 | IWMMXT_OP_ENV1(unpackhsb) | |
1311 | IWMMXT_OP_ENV1(unpackhsw) | |
1312 | IWMMXT_OP_ENV1(unpackhsl) | |
1313 | ||
1314 | IWMMXT_OP_ENV_SIZE(cmpeq) | |
1315 | IWMMXT_OP_ENV_SIZE(cmpgtu) | |
1316 | IWMMXT_OP_ENV_SIZE(cmpgts) | |
1317 | ||
1318 | IWMMXT_OP_ENV_SIZE(mins) | |
1319 | IWMMXT_OP_ENV_SIZE(minu) | |
1320 | IWMMXT_OP_ENV_SIZE(maxs) | |
1321 | IWMMXT_OP_ENV_SIZE(maxu) | |
1322 | ||
1323 | IWMMXT_OP_ENV_SIZE(subn) | |
1324 | IWMMXT_OP_ENV_SIZE(addn) | |
1325 | IWMMXT_OP_ENV_SIZE(subu) | |
1326 | IWMMXT_OP_ENV_SIZE(addu) | |
1327 | IWMMXT_OP_ENV_SIZE(subs) | |
1328 | IWMMXT_OP_ENV_SIZE(adds) | |
1329 | ||
1330 | IWMMXT_OP_ENV(avgb0) | |
1331 | IWMMXT_OP_ENV(avgb1) | |
1332 | IWMMXT_OP_ENV(avgw0) | |
1333 | IWMMXT_OP_ENV(avgw1) | |
e677137d PB |
1334 | |
1335 | IWMMXT_OP(msadb) | |
1336 | ||
477955bd PM |
1337 | IWMMXT_OP_ENV(packuw) |
1338 | IWMMXT_OP_ENV(packul) | |
1339 | IWMMXT_OP_ENV(packuq) | |
1340 | IWMMXT_OP_ENV(packsw) | |
1341 | IWMMXT_OP_ENV(packsl) | |
1342 | IWMMXT_OP_ENV(packsq) | |
e677137d | 1343 | |
e677137d PB |
1344 | static void gen_op_iwmmxt_set_mup(void) |
1345 | { | |
39d5492a | 1346 | TCGv_i32 tmp; |
e677137d PB |
1347 | tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1348 | tcg_gen_ori_i32(tmp, tmp, 2); | |
1349 | store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); | |
1350 | } | |
1351 | ||
1352 | static void gen_op_iwmmxt_set_cup(void) | |
1353 | { | |
39d5492a | 1354 | TCGv_i32 tmp; |
e677137d PB |
1355 | tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]); |
1356 | tcg_gen_ori_i32(tmp, tmp, 1); | |
1357 | store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]); | |
1358 | } | |
1359 | ||
1360 | static void gen_op_iwmmxt_setpsr_nz(void) | |
1361 | { | |
39d5492a | 1362 | TCGv_i32 tmp = tcg_temp_new_i32(); |
e677137d PB |
1363 | gen_helper_iwmmxt_setpsr_nz(tmp, cpu_M0); |
1364 | store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCASF]); | |
1365 | } | |
1366 | ||
1367 | static inline void gen_op_iwmmxt_addl_M0_wRn(int rn) | |
1368 | { | |
1369 | iwmmxt_load_reg(cpu_V1, rn); | |
86831435 | 1370 | tcg_gen_ext32u_i64(cpu_V1, cpu_V1); |
e677137d PB |
1371 | tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); |
1372 | } | |
1373 | ||
39d5492a PM |
1374 | static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn, |
1375 | TCGv_i32 dest) | |
18c9b560 AZ |
1376 | { |
1377 | int rd; | |
1378 | uint32_t offset; | |
39d5492a | 1379 | TCGv_i32 tmp; |
18c9b560 AZ |
1380 | |
1381 | rd = (insn >> 16) & 0xf; | |
da6b5335 | 1382 | tmp = load_reg(s, rd); |
18c9b560 AZ |
1383 | |
1384 | offset = (insn & 0xff) << ((insn >> 7) & 2); | |
1385 | if (insn & (1 << 24)) { | |
1386 | /* Pre indexed */ | |
1387 | if (insn & (1 << 23)) | |
da6b5335 | 1388 | tcg_gen_addi_i32(tmp, tmp, offset); |
18c9b560 | 1389 | else |
da6b5335 FN |
1390 | tcg_gen_addi_i32(tmp, tmp, -offset); |
1391 | tcg_gen_mov_i32(dest, tmp); | |
18c9b560 | 1392 | if (insn & (1 << 21)) |
da6b5335 FN |
1393 | store_reg(s, rd, tmp); |
1394 | else | |
7d1b0095 | 1395 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1396 | } else if (insn & (1 << 21)) { |
1397 | /* Post indexed */ | |
da6b5335 | 1398 | tcg_gen_mov_i32(dest, tmp); |
18c9b560 | 1399 | if (insn & (1 << 23)) |
da6b5335 | 1400 | tcg_gen_addi_i32(tmp, tmp, offset); |
18c9b560 | 1401 | else |
da6b5335 FN |
1402 | tcg_gen_addi_i32(tmp, tmp, -offset); |
1403 | store_reg(s, rd, tmp); | |
18c9b560 AZ |
1404 | } else if (!(insn & (1 << 23))) |
1405 | return 1; | |
1406 | return 0; | |
1407 | } | |
1408 | ||
39d5492a | 1409 | static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask, TCGv_i32 dest) |
18c9b560 AZ |
1410 | { |
1411 | int rd = (insn >> 0) & 0xf; | |
39d5492a | 1412 | TCGv_i32 tmp; |
18c9b560 | 1413 | |
da6b5335 FN |
1414 | if (insn & (1 << 8)) { |
1415 | if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3) { | |
18c9b560 | 1416 | return 1; |
da6b5335 FN |
1417 | } else { |
1418 | tmp = iwmmxt_load_creg(rd); | |
1419 | } | |
1420 | } else { | |
7d1b0095 | 1421 | tmp = tcg_temp_new_i32(); |
da6b5335 FN |
1422 | iwmmxt_load_reg(cpu_V0, rd); |
1423 | tcg_gen_trunc_i64_i32(tmp, cpu_V0); | |
1424 | } | |
1425 | tcg_gen_andi_i32(tmp, tmp, mask); | |
1426 | tcg_gen_mov_i32(dest, tmp); | |
7d1b0095 | 1427 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1428 | return 0; |
1429 | } | |
1430 | ||
a1c7273b | 1431 | /* Disassemble an iwMMXt instruction. Returns nonzero if an error occurred |
18c9b560 | 1432 | (ie. an undefined instruction). */ |
0ecb72a5 | 1433 | static int disas_iwmmxt_insn(CPUARMState *env, DisasContext *s, uint32_t insn) |
18c9b560 AZ |
1434 | { |
1435 | int rd, wrd; | |
1436 | int rdhi, rdlo, rd0, rd1, i; | |
39d5492a PM |
1437 | TCGv_i32 addr; |
1438 | TCGv_i32 tmp, tmp2, tmp3; | |
18c9b560 AZ |
1439 | |
1440 | if ((insn & 0x0e000e00) == 0x0c000000) { | |
1441 | if ((insn & 0x0fe00ff0) == 0x0c400000) { | |
1442 | wrd = insn & 0xf; | |
1443 | rdlo = (insn >> 12) & 0xf; | |
1444 | rdhi = (insn >> 16) & 0xf; | |
1445 | if (insn & ARM_CP_RW_BIT) { /* TMRRC */ | |
da6b5335 FN |
1446 | iwmmxt_load_reg(cpu_V0, wrd); |
1447 | tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0); | |
1448 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); | |
1449 | tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0); | |
18c9b560 | 1450 | } else { /* TMCRR */ |
da6b5335 FN |
1451 | tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
1452 | iwmmxt_store_reg(cpu_V0, wrd); | |
18c9b560 AZ |
1453 | gen_op_iwmmxt_set_mup(); |
1454 | } | |
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | wrd = (insn >> 12) & 0xf; | |
7d1b0095 | 1459 | addr = tcg_temp_new_i32(); |
da6b5335 | 1460 | if (gen_iwmmxt_address(s, insn, addr)) { |
7d1b0095 | 1461 | tcg_temp_free_i32(addr); |
18c9b560 | 1462 | return 1; |
da6b5335 | 1463 | } |
18c9b560 AZ |
1464 | if (insn & ARM_CP_RW_BIT) { |
1465 | if ((insn >> 28) == 0xf) { /* WLDRW wCx */ | |
7d1b0095 | 1466 | tmp = tcg_temp_new_i32(); |
da6b5335 FN |
1467 | tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); |
1468 | iwmmxt_store_creg(wrd, tmp); | |
18c9b560 | 1469 | } else { |
e677137d PB |
1470 | i = 1; |
1471 | if (insn & (1 << 8)) { | |
1472 | if (insn & (1 << 22)) { /* WLDRD */ | |
da6b5335 | 1473 | tcg_gen_qemu_ld64(cpu_M0, addr, IS_USER(s)); |
e677137d PB |
1474 | i = 0; |
1475 | } else { /* WLDRW wRd */ | |
29531141 PM |
1476 | tmp = tcg_temp_new_i32(); |
1477 | tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); | |
e677137d PB |
1478 | } |
1479 | } else { | |
29531141 | 1480 | tmp = tcg_temp_new_i32(); |
e677137d | 1481 | if (insn & (1 << 22)) { /* WLDRH */ |
29531141 | 1482 | tcg_gen_qemu_ld16u(tmp, addr, IS_USER(s)); |
e677137d | 1483 | } else { /* WLDRB */ |
29531141 | 1484 | tcg_gen_qemu_ld8u(tmp, addr, IS_USER(s)); |
e677137d PB |
1485 | } |
1486 | } | |
1487 | if (i) { | |
1488 | tcg_gen_extu_i32_i64(cpu_M0, tmp); | |
7d1b0095 | 1489 | tcg_temp_free_i32(tmp); |
e677137d | 1490 | } |
18c9b560 AZ |
1491 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
1492 | } | |
1493 | } else { | |
1494 | if ((insn >> 28) == 0xf) { /* WSTRW wCx */ | |
da6b5335 | 1495 | tmp = iwmmxt_load_creg(wrd); |
29531141 | 1496 | tcg_gen_qemu_st32(tmp, addr, IS_USER(s)); |
18c9b560 AZ |
1497 | } else { |
1498 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
7d1b0095 | 1499 | tmp = tcg_temp_new_i32(); |
e677137d PB |
1500 | if (insn & (1 << 8)) { |
1501 | if (insn & (1 << 22)) { /* WSTRD */ | |
da6b5335 | 1502 | tcg_gen_qemu_st64(cpu_M0, addr, IS_USER(s)); |
e677137d PB |
1503 | } else { /* WSTRW wRd */ |
1504 | tcg_gen_trunc_i64_i32(tmp, cpu_M0); | |
29531141 | 1505 | tcg_gen_qemu_st32(tmp, addr, IS_USER(s)); |
e677137d PB |
1506 | } |
1507 | } else { | |
1508 | if (insn & (1 << 22)) { /* WSTRH */ | |
1509 | tcg_gen_trunc_i64_i32(tmp, cpu_M0); | |
29531141 | 1510 | tcg_gen_qemu_st16(tmp, addr, IS_USER(s)); |
e677137d PB |
1511 | } else { /* WSTRB */ |
1512 | tcg_gen_trunc_i64_i32(tmp, cpu_M0); | |
29531141 | 1513 | tcg_gen_qemu_st8(tmp, addr, IS_USER(s)); |
e677137d PB |
1514 | } |
1515 | } | |
18c9b560 | 1516 | } |
29531141 | 1517 | tcg_temp_free_i32(tmp); |
18c9b560 | 1518 | } |
7d1b0095 | 1519 | tcg_temp_free_i32(addr); |
18c9b560 AZ |
1520 | return 0; |
1521 | } | |
1522 | ||
1523 | if ((insn & 0x0f000000) != 0x0e000000) | |
1524 | return 1; | |
1525 | ||
1526 | switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) { | |
1527 | case 0x000: /* WOR */ | |
1528 | wrd = (insn >> 12) & 0xf; | |
1529 | rd0 = (insn >> 0) & 0xf; | |
1530 | rd1 = (insn >> 16) & 0xf; | |
1531 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1532 | gen_op_iwmmxt_orq_M0_wRn(rd1); | |
1533 | gen_op_iwmmxt_setpsr_nz(); | |
1534 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1535 | gen_op_iwmmxt_set_mup(); | |
1536 | gen_op_iwmmxt_set_cup(); | |
1537 | break; | |
1538 | case 0x011: /* TMCR */ | |
1539 | if (insn & 0xf) | |
1540 | return 1; | |
1541 | rd = (insn >> 12) & 0xf; | |
1542 | wrd = (insn >> 16) & 0xf; | |
1543 | switch (wrd) { | |
1544 | case ARM_IWMMXT_wCID: | |
1545 | case ARM_IWMMXT_wCASF: | |
1546 | break; | |
1547 | case ARM_IWMMXT_wCon: | |
1548 | gen_op_iwmmxt_set_cup(); | |
1549 | /* Fall through. */ | |
1550 | case ARM_IWMMXT_wCSSF: | |
da6b5335 FN |
1551 | tmp = iwmmxt_load_creg(wrd); |
1552 | tmp2 = load_reg(s, rd); | |
f669df27 | 1553 | tcg_gen_andc_i32(tmp, tmp, tmp2); |
7d1b0095 | 1554 | tcg_temp_free_i32(tmp2); |
da6b5335 | 1555 | iwmmxt_store_creg(wrd, tmp); |
18c9b560 AZ |
1556 | break; |
1557 | case ARM_IWMMXT_wCGR0: | |
1558 | case ARM_IWMMXT_wCGR1: | |
1559 | case ARM_IWMMXT_wCGR2: | |
1560 | case ARM_IWMMXT_wCGR3: | |
1561 | gen_op_iwmmxt_set_cup(); | |
da6b5335 FN |
1562 | tmp = load_reg(s, rd); |
1563 | iwmmxt_store_creg(wrd, tmp); | |
18c9b560 AZ |
1564 | break; |
1565 | default: | |
1566 | return 1; | |
1567 | } | |
1568 | break; | |
1569 | case 0x100: /* WXOR */ | |
1570 | wrd = (insn >> 12) & 0xf; | |
1571 | rd0 = (insn >> 0) & 0xf; | |
1572 | rd1 = (insn >> 16) & 0xf; | |
1573 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1574 | gen_op_iwmmxt_xorq_M0_wRn(rd1); | |
1575 | gen_op_iwmmxt_setpsr_nz(); | |
1576 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1577 | gen_op_iwmmxt_set_mup(); | |
1578 | gen_op_iwmmxt_set_cup(); | |
1579 | break; | |
1580 | case 0x111: /* TMRC */ | |
1581 | if (insn & 0xf) | |
1582 | return 1; | |
1583 | rd = (insn >> 12) & 0xf; | |
1584 | wrd = (insn >> 16) & 0xf; | |
da6b5335 FN |
1585 | tmp = iwmmxt_load_creg(wrd); |
1586 | store_reg(s, rd, tmp); | |
18c9b560 AZ |
1587 | break; |
1588 | case 0x300: /* WANDN */ | |
1589 | wrd = (insn >> 12) & 0xf; | |
1590 | rd0 = (insn >> 0) & 0xf; | |
1591 | rd1 = (insn >> 16) & 0xf; | |
1592 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
e677137d | 1593 | tcg_gen_neg_i64(cpu_M0, cpu_M0); |
18c9b560 AZ |
1594 | gen_op_iwmmxt_andq_M0_wRn(rd1); |
1595 | gen_op_iwmmxt_setpsr_nz(); | |
1596 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1597 | gen_op_iwmmxt_set_mup(); | |
1598 | gen_op_iwmmxt_set_cup(); | |
1599 | break; | |
1600 | case 0x200: /* WAND */ | |
1601 | wrd = (insn >> 12) & 0xf; | |
1602 | rd0 = (insn >> 0) & 0xf; | |
1603 | rd1 = (insn >> 16) & 0xf; | |
1604 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1605 | gen_op_iwmmxt_andq_M0_wRn(rd1); | |
1606 | gen_op_iwmmxt_setpsr_nz(); | |
1607 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1608 | gen_op_iwmmxt_set_mup(); | |
1609 | gen_op_iwmmxt_set_cup(); | |
1610 | break; | |
1611 | case 0x810: case 0xa10: /* WMADD */ | |
1612 | wrd = (insn >> 12) & 0xf; | |
1613 | rd0 = (insn >> 0) & 0xf; | |
1614 | rd1 = (insn >> 16) & 0xf; | |
1615 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1616 | if (insn & (1 << 21)) | |
1617 | gen_op_iwmmxt_maddsq_M0_wRn(rd1); | |
1618 | else | |
1619 | gen_op_iwmmxt_madduq_M0_wRn(rd1); | |
1620 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1621 | gen_op_iwmmxt_set_mup(); | |
1622 | break; | |
1623 | case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */ | |
1624 | wrd = (insn >> 12) & 0xf; | |
1625 | rd0 = (insn >> 16) & 0xf; | |
1626 | rd1 = (insn >> 0) & 0xf; | |
1627 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1628 | switch ((insn >> 22) & 3) { | |
1629 | case 0: | |
1630 | gen_op_iwmmxt_unpacklb_M0_wRn(rd1); | |
1631 | break; | |
1632 | case 1: | |
1633 | gen_op_iwmmxt_unpacklw_M0_wRn(rd1); | |
1634 | break; | |
1635 | case 2: | |
1636 | gen_op_iwmmxt_unpackll_M0_wRn(rd1); | |
1637 | break; | |
1638 | case 3: | |
1639 | return 1; | |
1640 | } | |
1641 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1642 | gen_op_iwmmxt_set_mup(); | |
1643 | gen_op_iwmmxt_set_cup(); | |
1644 | break; | |
1645 | case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */ | |
1646 | wrd = (insn >> 12) & 0xf; | |
1647 | rd0 = (insn >> 16) & 0xf; | |
1648 | rd1 = (insn >> 0) & 0xf; | |
1649 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1650 | switch ((insn >> 22) & 3) { | |
1651 | case 0: | |
1652 | gen_op_iwmmxt_unpackhb_M0_wRn(rd1); | |
1653 | break; | |
1654 | case 1: | |
1655 | gen_op_iwmmxt_unpackhw_M0_wRn(rd1); | |
1656 | break; | |
1657 | case 2: | |
1658 | gen_op_iwmmxt_unpackhl_M0_wRn(rd1); | |
1659 | break; | |
1660 | case 3: | |
1661 | return 1; | |
1662 | } | |
1663 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1664 | gen_op_iwmmxt_set_mup(); | |
1665 | gen_op_iwmmxt_set_cup(); | |
1666 | break; | |
1667 | case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */ | |
1668 | wrd = (insn >> 12) & 0xf; | |
1669 | rd0 = (insn >> 16) & 0xf; | |
1670 | rd1 = (insn >> 0) & 0xf; | |
1671 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1672 | if (insn & (1 << 22)) | |
1673 | gen_op_iwmmxt_sadw_M0_wRn(rd1); | |
1674 | else | |
1675 | gen_op_iwmmxt_sadb_M0_wRn(rd1); | |
1676 | if (!(insn & (1 << 20))) | |
1677 | gen_op_iwmmxt_addl_M0_wRn(wrd); | |
1678 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1679 | gen_op_iwmmxt_set_mup(); | |
1680 | break; | |
1681 | case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */ | |
1682 | wrd = (insn >> 12) & 0xf; | |
1683 | rd0 = (insn >> 16) & 0xf; | |
1684 | rd1 = (insn >> 0) & 0xf; | |
1685 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
e677137d PB |
1686 | if (insn & (1 << 21)) { |
1687 | if (insn & (1 << 20)) | |
1688 | gen_op_iwmmxt_mulshw_M0_wRn(rd1); | |
1689 | else | |
1690 | gen_op_iwmmxt_mulslw_M0_wRn(rd1); | |
1691 | } else { | |
1692 | if (insn & (1 << 20)) | |
1693 | gen_op_iwmmxt_muluhw_M0_wRn(rd1); | |
1694 | else | |
1695 | gen_op_iwmmxt_mululw_M0_wRn(rd1); | |
1696 | } | |
18c9b560 AZ |
1697 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
1698 | gen_op_iwmmxt_set_mup(); | |
1699 | break; | |
1700 | case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */ | |
1701 | wrd = (insn >> 12) & 0xf; | |
1702 | rd0 = (insn >> 16) & 0xf; | |
1703 | rd1 = (insn >> 0) & 0xf; | |
1704 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1705 | if (insn & (1 << 21)) | |
1706 | gen_op_iwmmxt_macsw_M0_wRn(rd1); | |
1707 | else | |
1708 | gen_op_iwmmxt_macuw_M0_wRn(rd1); | |
1709 | if (!(insn & (1 << 20))) { | |
e677137d PB |
1710 | iwmmxt_load_reg(cpu_V1, wrd); |
1711 | tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1); | |
18c9b560 AZ |
1712 | } |
1713 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1714 | gen_op_iwmmxt_set_mup(); | |
1715 | break; | |
1716 | case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */ | |
1717 | wrd = (insn >> 12) & 0xf; | |
1718 | rd0 = (insn >> 16) & 0xf; | |
1719 | rd1 = (insn >> 0) & 0xf; | |
1720 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1721 | switch ((insn >> 22) & 3) { | |
1722 | case 0: | |
1723 | gen_op_iwmmxt_cmpeqb_M0_wRn(rd1); | |
1724 | break; | |
1725 | case 1: | |
1726 | gen_op_iwmmxt_cmpeqw_M0_wRn(rd1); | |
1727 | break; | |
1728 | case 2: | |
1729 | gen_op_iwmmxt_cmpeql_M0_wRn(rd1); | |
1730 | break; | |
1731 | case 3: | |
1732 | return 1; | |
1733 | } | |
1734 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1735 | gen_op_iwmmxt_set_mup(); | |
1736 | gen_op_iwmmxt_set_cup(); | |
1737 | break; | |
1738 | case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */ | |
1739 | wrd = (insn >> 12) & 0xf; | |
1740 | rd0 = (insn >> 16) & 0xf; | |
1741 | rd1 = (insn >> 0) & 0xf; | |
1742 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
e677137d PB |
1743 | if (insn & (1 << 22)) { |
1744 | if (insn & (1 << 20)) | |
1745 | gen_op_iwmmxt_avgw1_M0_wRn(rd1); | |
1746 | else | |
1747 | gen_op_iwmmxt_avgw0_M0_wRn(rd1); | |
1748 | } else { | |
1749 | if (insn & (1 << 20)) | |
1750 | gen_op_iwmmxt_avgb1_M0_wRn(rd1); | |
1751 | else | |
1752 | gen_op_iwmmxt_avgb0_M0_wRn(rd1); | |
1753 | } | |
18c9b560 AZ |
1754 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
1755 | gen_op_iwmmxt_set_mup(); | |
1756 | gen_op_iwmmxt_set_cup(); | |
1757 | break; | |
1758 | case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */ | |
1759 | wrd = (insn >> 12) & 0xf; | |
1760 | rd0 = (insn >> 16) & 0xf; | |
1761 | rd1 = (insn >> 0) & 0xf; | |
1762 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
da6b5335 FN |
1763 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3)); |
1764 | tcg_gen_andi_i32(tmp, tmp, 7); | |
1765 | iwmmxt_load_reg(cpu_V1, rd1); | |
1766 | gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); | |
7d1b0095 | 1767 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1768 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
1769 | gen_op_iwmmxt_set_mup(); | |
1770 | break; | |
1771 | case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */ | |
da6b5335 FN |
1772 | if (((insn >> 6) & 3) == 3) |
1773 | return 1; | |
18c9b560 AZ |
1774 | rd = (insn >> 12) & 0xf; |
1775 | wrd = (insn >> 16) & 0xf; | |
da6b5335 | 1776 | tmp = load_reg(s, rd); |
18c9b560 AZ |
1777 | gen_op_iwmmxt_movq_M0_wRn(wrd); |
1778 | switch ((insn >> 6) & 3) { | |
1779 | case 0: | |
da6b5335 FN |
1780 | tmp2 = tcg_const_i32(0xff); |
1781 | tmp3 = tcg_const_i32((insn & 7) << 3); | |
18c9b560 AZ |
1782 | break; |
1783 | case 1: | |
da6b5335 FN |
1784 | tmp2 = tcg_const_i32(0xffff); |
1785 | tmp3 = tcg_const_i32((insn & 3) << 4); | |
18c9b560 AZ |
1786 | break; |
1787 | case 2: | |
da6b5335 FN |
1788 | tmp2 = tcg_const_i32(0xffffffff); |
1789 | tmp3 = tcg_const_i32((insn & 1) << 5); | |
18c9b560 | 1790 | break; |
da6b5335 | 1791 | default: |
39d5492a PM |
1792 | TCGV_UNUSED_I32(tmp2); |
1793 | TCGV_UNUSED_I32(tmp3); | |
18c9b560 | 1794 | } |
da6b5335 | 1795 | gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, tmp, tmp2, tmp3); |
39d5492a PM |
1796 | tcg_temp_free_i32(tmp3); |
1797 | tcg_temp_free_i32(tmp2); | |
7d1b0095 | 1798 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1799 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
1800 | gen_op_iwmmxt_set_mup(); | |
1801 | break; | |
1802 | case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */ | |
1803 | rd = (insn >> 12) & 0xf; | |
1804 | wrd = (insn >> 16) & 0xf; | |
da6b5335 | 1805 | if (rd == 15 || ((insn >> 22) & 3) == 3) |
18c9b560 AZ |
1806 | return 1; |
1807 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
7d1b0095 | 1808 | tmp = tcg_temp_new_i32(); |
18c9b560 AZ |
1809 | switch ((insn >> 22) & 3) { |
1810 | case 0: | |
da6b5335 FN |
1811 | tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 7) << 3); |
1812 | tcg_gen_trunc_i64_i32(tmp, cpu_M0); | |
1813 | if (insn & 8) { | |
1814 | tcg_gen_ext8s_i32(tmp, tmp); | |
1815 | } else { | |
1816 | tcg_gen_andi_i32(tmp, tmp, 0xff); | |
18c9b560 AZ |
1817 | } |
1818 | break; | |
1819 | case 1: | |
da6b5335 FN |
1820 | tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 3) << 4); |
1821 | tcg_gen_trunc_i64_i32(tmp, cpu_M0); | |
1822 | if (insn & 8) { | |
1823 | tcg_gen_ext16s_i32(tmp, tmp); | |
1824 | } else { | |
1825 | tcg_gen_andi_i32(tmp, tmp, 0xffff); | |
18c9b560 AZ |
1826 | } |
1827 | break; | |
1828 | case 2: | |
da6b5335 FN |
1829 | tcg_gen_shri_i64(cpu_M0, cpu_M0, (insn & 1) << 5); |
1830 | tcg_gen_trunc_i64_i32(tmp, cpu_M0); | |
18c9b560 | 1831 | break; |
18c9b560 | 1832 | } |
da6b5335 | 1833 | store_reg(s, rd, tmp); |
18c9b560 AZ |
1834 | break; |
1835 | case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */ | |
da6b5335 | 1836 | if ((insn & 0x000ff008) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
18c9b560 | 1837 | return 1; |
da6b5335 | 1838 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
18c9b560 AZ |
1839 | switch ((insn >> 22) & 3) { |
1840 | case 0: | |
da6b5335 | 1841 | tcg_gen_shri_i32(tmp, tmp, ((insn & 7) << 2) + 0); |
18c9b560 AZ |
1842 | break; |
1843 | case 1: | |
da6b5335 | 1844 | tcg_gen_shri_i32(tmp, tmp, ((insn & 3) << 3) + 4); |
18c9b560 AZ |
1845 | break; |
1846 | case 2: | |
da6b5335 | 1847 | tcg_gen_shri_i32(tmp, tmp, ((insn & 1) << 4) + 12); |
18c9b560 | 1848 | break; |
18c9b560 | 1849 | } |
da6b5335 FN |
1850 | tcg_gen_shli_i32(tmp, tmp, 28); |
1851 | gen_set_nzcv(tmp); | |
7d1b0095 | 1852 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1853 | break; |
1854 | case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */ | |
da6b5335 FN |
1855 | if (((insn >> 6) & 3) == 3) |
1856 | return 1; | |
18c9b560 AZ |
1857 | rd = (insn >> 12) & 0xf; |
1858 | wrd = (insn >> 16) & 0xf; | |
da6b5335 | 1859 | tmp = load_reg(s, rd); |
18c9b560 AZ |
1860 | switch ((insn >> 6) & 3) { |
1861 | case 0: | |
da6b5335 | 1862 | gen_helper_iwmmxt_bcstb(cpu_M0, tmp); |
18c9b560 AZ |
1863 | break; |
1864 | case 1: | |
da6b5335 | 1865 | gen_helper_iwmmxt_bcstw(cpu_M0, tmp); |
18c9b560 AZ |
1866 | break; |
1867 | case 2: | |
da6b5335 | 1868 | gen_helper_iwmmxt_bcstl(cpu_M0, tmp); |
18c9b560 | 1869 | break; |
18c9b560 | 1870 | } |
7d1b0095 | 1871 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
1872 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
1873 | gen_op_iwmmxt_set_mup(); | |
1874 | break; | |
1875 | case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */ | |
da6b5335 | 1876 | if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
18c9b560 | 1877 | return 1; |
da6b5335 | 1878 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
7d1b0095 | 1879 | tmp2 = tcg_temp_new_i32(); |
da6b5335 | 1880 | tcg_gen_mov_i32(tmp2, tmp); |
18c9b560 AZ |
1881 | switch ((insn >> 22) & 3) { |
1882 | case 0: | |
1883 | for (i = 0; i < 7; i ++) { | |
da6b5335 FN |
1884 | tcg_gen_shli_i32(tmp2, tmp2, 4); |
1885 | tcg_gen_and_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
1886 | } |
1887 | break; | |
1888 | case 1: | |
1889 | for (i = 0; i < 3; i ++) { | |
da6b5335 FN |
1890 | tcg_gen_shli_i32(tmp2, tmp2, 8); |
1891 | tcg_gen_and_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
1892 | } |
1893 | break; | |
1894 | case 2: | |
da6b5335 FN |
1895 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
1896 | tcg_gen_and_i32(tmp, tmp, tmp2); | |
18c9b560 | 1897 | break; |
18c9b560 | 1898 | } |
da6b5335 | 1899 | gen_set_nzcv(tmp); |
7d1b0095 PM |
1900 | tcg_temp_free_i32(tmp2); |
1901 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
1902 | break; |
1903 | case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */ | |
1904 | wrd = (insn >> 12) & 0xf; | |
1905 | rd0 = (insn >> 16) & 0xf; | |
1906 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1907 | switch ((insn >> 22) & 3) { | |
1908 | case 0: | |
e677137d | 1909 | gen_helper_iwmmxt_addcb(cpu_M0, cpu_M0); |
18c9b560 AZ |
1910 | break; |
1911 | case 1: | |
e677137d | 1912 | gen_helper_iwmmxt_addcw(cpu_M0, cpu_M0); |
18c9b560 AZ |
1913 | break; |
1914 | case 2: | |
e677137d | 1915 | gen_helper_iwmmxt_addcl(cpu_M0, cpu_M0); |
18c9b560 AZ |
1916 | break; |
1917 | case 3: | |
1918 | return 1; | |
1919 | } | |
1920 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1921 | gen_op_iwmmxt_set_mup(); | |
1922 | break; | |
1923 | case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */ | |
da6b5335 | 1924 | if ((insn & 0x000ff00f) != 0x0003f000 || ((insn >> 22) & 3) == 3) |
18c9b560 | 1925 | return 1; |
da6b5335 | 1926 | tmp = iwmmxt_load_creg(ARM_IWMMXT_wCASF); |
7d1b0095 | 1927 | tmp2 = tcg_temp_new_i32(); |
da6b5335 | 1928 | tcg_gen_mov_i32(tmp2, tmp); |
18c9b560 AZ |
1929 | switch ((insn >> 22) & 3) { |
1930 | case 0: | |
1931 | for (i = 0; i < 7; i ++) { | |
da6b5335 FN |
1932 | tcg_gen_shli_i32(tmp2, tmp2, 4); |
1933 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
1934 | } |
1935 | break; | |
1936 | case 1: | |
1937 | for (i = 0; i < 3; i ++) { | |
da6b5335 FN |
1938 | tcg_gen_shli_i32(tmp2, tmp2, 8); |
1939 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
18c9b560 AZ |
1940 | } |
1941 | break; | |
1942 | case 2: | |
da6b5335 FN |
1943 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
1944 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
18c9b560 | 1945 | break; |
18c9b560 | 1946 | } |
da6b5335 | 1947 | gen_set_nzcv(tmp); |
7d1b0095 PM |
1948 | tcg_temp_free_i32(tmp2); |
1949 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
1950 | break; |
1951 | case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */ | |
1952 | rd = (insn >> 12) & 0xf; | |
1953 | rd0 = (insn >> 16) & 0xf; | |
da6b5335 | 1954 | if ((insn & 0xf) != 0 || ((insn >> 22) & 3) == 3) |
18c9b560 AZ |
1955 | return 1; |
1956 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 1957 | tmp = tcg_temp_new_i32(); |
18c9b560 AZ |
1958 | switch ((insn >> 22) & 3) { |
1959 | case 0: | |
da6b5335 | 1960 | gen_helper_iwmmxt_msbb(tmp, cpu_M0); |
18c9b560 AZ |
1961 | break; |
1962 | case 1: | |
da6b5335 | 1963 | gen_helper_iwmmxt_msbw(tmp, cpu_M0); |
18c9b560 AZ |
1964 | break; |
1965 | case 2: | |
da6b5335 | 1966 | gen_helper_iwmmxt_msbl(tmp, cpu_M0); |
18c9b560 | 1967 | break; |
18c9b560 | 1968 | } |
da6b5335 | 1969 | store_reg(s, rd, tmp); |
18c9b560 AZ |
1970 | break; |
1971 | case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */ | |
1972 | case 0x906: case 0xb06: case 0xd06: case 0xf06: | |
1973 | wrd = (insn >> 12) & 0xf; | |
1974 | rd0 = (insn >> 16) & 0xf; | |
1975 | rd1 = (insn >> 0) & 0xf; | |
1976 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1977 | switch ((insn >> 22) & 3) { | |
1978 | case 0: | |
1979 | if (insn & (1 << 21)) | |
1980 | gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1); | |
1981 | else | |
1982 | gen_op_iwmmxt_cmpgtub_M0_wRn(rd1); | |
1983 | break; | |
1984 | case 1: | |
1985 | if (insn & (1 << 21)) | |
1986 | gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1); | |
1987 | else | |
1988 | gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1); | |
1989 | break; | |
1990 | case 2: | |
1991 | if (insn & (1 << 21)) | |
1992 | gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1); | |
1993 | else | |
1994 | gen_op_iwmmxt_cmpgtul_M0_wRn(rd1); | |
1995 | break; | |
1996 | case 3: | |
1997 | return 1; | |
1998 | } | |
1999 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2000 | gen_op_iwmmxt_set_mup(); | |
2001 | gen_op_iwmmxt_set_cup(); | |
2002 | break; | |
2003 | case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */ | |
2004 | case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e: | |
2005 | wrd = (insn >> 12) & 0xf; | |
2006 | rd0 = (insn >> 16) & 0xf; | |
2007 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2008 | switch ((insn >> 22) & 3) { | |
2009 | case 0: | |
2010 | if (insn & (1 << 21)) | |
2011 | gen_op_iwmmxt_unpacklsb_M0(); | |
2012 | else | |
2013 | gen_op_iwmmxt_unpacklub_M0(); | |
2014 | break; | |
2015 | case 1: | |
2016 | if (insn & (1 << 21)) | |
2017 | gen_op_iwmmxt_unpacklsw_M0(); | |
2018 | else | |
2019 | gen_op_iwmmxt_unpackluw_M0(); | |
2020 | break; | |
2021 | case 2: | |
2022 | if (insn & (1 << 21)) | |
2023 | gen_op_iwmmxt_unpacklsl_M0(); | |
2024 | else | |
2025 | gen_op_iwmmxt_unpacklul_M0(); | |
2026 | break; | |
2027 | case 3: | |
2028 | return 1; | |
2029 | } | |
2030 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2031 | gen_op_iwmmxt_set_mup(); | |
2032 | gen_op_iwmmxt_set_cup(); | |
2033 | break; | |
2034 | case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */ | |
2035 | case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c: | |
2036 | wrd = (insn >> 12) & 0xf; | |
2037 | rd0 = (insn >> 16) & 0xf; | |
2038 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2039 | switch ((insn >> 22) & 3) { | |
2040 | case 0: | |
2041 | if (insn & (1 << 21)) | |
2042 | gen_op_iwmmxt_unpackhsb_M0(); | |
2043 | else | |
2044 | gen_op_iwmmxt_unpackhub_M0(); | |
2045 | break; | |
2046 | case 1: | |
2047 | if (insn & (1 << 21)) | |
2048 | gen_op_iwmmxt_unpackhsw_M0(); | |
2049 | else | |
2050 | gen_op_iwmmxt_unpackhuw_M0(); | |
2051 | break; | |
2052 | case 2: | |
2053 | if (insn & (1 << 21)) | |
2054 | gen_op_iwmmxt_unpackhsl_M0(); | |
2055 | else | |
2056 | gen_op_iwmmxt_unpackhul_M0(); | |
2057 | break; | |
2058 | case 3: | |
2059 | return 1; | |
2060 | } | |
2061 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2062 | gen_op_iwmmxt_set_mup(); | |
2063 | gen_op_iwmmxt_set_cup(); | |
2064 | break; | |
2065 | case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */ | |
2066 | case 0x214: case 0x614: case 0xa14: case 0xe14: | |
da6b5335 FN |
2067 | if (((insn >> 22) & 3) == 0) |
2068 | return 1; | |
18c9b560 AZ |
2069 | wrd = (insn >> 12) & 0xf; |
2070 | rd0 = (insn >> 16) & 0xf; | |
2071 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2072 | tmp = tcg_temp_new_i32(); |
da6b5335 | 2073 | if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
7d1b0095 | 2074 | tcg_temp_free_i32(tmp); |
18c9b560 | 2075 | return 1; |
da6b5335 | 2076 | } |
18c9b560 | 2077 | switch ((insn >> 22) & 3) { |
18c9b560 | 2078 | case 1: |
477955bd | 2079 | gen_helper_iwmmxt_srlw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2080 | break; |
2081 | case 2: | |
477955bd | 2082 | gen_helper_iwmmxt_srll(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2083 | break; |
2084 | case 3: | |
477955bd | 2085 | gen_helper_iwmmxt_srlq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2086 | break; |
2087 | } | |
7d1b0095 | 2088 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2089 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2090 | gen_op_iwmmxt_set_mup(); | |
2091 | gen_op_iwmmxt_set_cup(); | |
2092 | break; | |
2093 | case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */ | |
2094 | case 0x014: case 0x414: case 0x814: case 0xc14: | |
da6b5335 FN |
2095 | if (((insn >> 22) & 3) == 0) |
2096 | return 1; | |
18c9b560 AZ |
2097 | wrd = (insn >> 12) & 0xf; |
2098 | rd0 = (insn >> 16) & 0xf; | |
2099 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2100 | tmp = tcg_temp_new_i32(); |
da6b5335 | 2101 | if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
7d1b0095 | 2102 | tcg_temp_free_i32(tmp); |
18c9b560 | 2103 | return 1; |
da6b5335 | 2104 | } |
18c9b560 | 2105 | switch ((insn >> 22) & 3) { |
18c9b560 | 2106 | case 1: |
477955bd | 2107 | gen_helper_iwmmxt_sraw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2108 | break; |
2109 | case 2: | |
477955bd | 2110 | gen_helper_iwmmxt_sral(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2111 | break; |
2112 | case 3: | |
477955bd | 2113 | gen_helper_iwmmxt_sraq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2114 | break; |
2115 | } | |
7d1b0095 | 2116 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2117 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2118 | gen_op_iwmmxt_set_mup(); | |
2119 | gen_op_iwmmxt_set_cup(); | |
2120 | break; | |
2121 | case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */ | |
2122 | case 0x114: case 0x514: case 0x914: case 0xd14: | |
da6b5335 FN |
2123 | if (((insn >> 22) & 3) == 0) |
2124 | return 1; | |
18c9b560 AZ |
2125 | wrd = (insn >> 12) & 0xf; |
2126 | rd0 = (insn >> 16) & 0xf; | |
2127 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2128 | tmp = tcg_temp_new_i32(); |
da6b5335 | 2129 | if (gen_iwmmxt_shift(insn, 0xff, tmp)) { |
7d1b0095 | 2130 | tcg_temp_free_i32(tmp); |
18c9b560 | 2131 | return 1; |
da6b5335 | 2132 | } |
18c9b560 | 2133 | switch ((insn >> 22) & 3) { |
18c9b560 | 2134 | case 1: |
477955bd | 2135 | gen_helper_iwmmxt_sllw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2136 | break; |
2137 | case 2: | |
477955bd | 2138 | gen_helper_iwmmxt_slll(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2139 | break; |
2140 | case 3: | |
477955bd | 2141 | gen_helper_iwmmxt_sllq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2142 | break; |
2143 | } | |
7d1b0095 | 2144 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2145 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2146 | gen_op_iwmmxt_set_mup(); | |
2147 | gen_op_iwmmxt_set_cup(); | |
2148 | break; | |
2149 | case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */ | |
2150 | case 0x314: case 0x714: case 0xb14: case 0xf14: | |
da6b5335 FN |
2151 | if (((insn >> 22) & 3) == 0) |
2152 | return 1; | |
18c9b560 AZ |
2153 | wrd = (insn >> 12) & 0xf; |
2154 | rd0 = (insn >> 16) & 0xf; | |
2155 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
7d1b0095 | 2156 | tmp = tcg_temp_new_i32(); |
18c9b560 | 2157 | switch ((insn >> 22) & 3) { |
18c9b560 | 2158 | case 1: |
da6b5335 | 2159 | if (gen_iwmmxt_shift(insn, 0xf, tmp)) { |
7d1b0095 | 2160 | tcg_temp_free_i32(tmp); |
18c9b560 | 2161 | return 1; |
da6b5335 | 2162 | } |
477955bd | 2163 | gen_helper_iwmmxt_rorw(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2164 | break; |
2165 | case 2: | |
da6b5335 | 2166 | if (gen_iwmmxt_shift(insn, 0x1f, tmp)) { |
7d1b0095 | 2167 | tcg_temp_free_i32(tmp); |
18c9b560 | 2168 | return 1; |
da6b5335 | 2169 | } |
477955bd | 2170 | gen_helper_iwmmxt_rorl(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2171 | break; |
2172 | case 3: | |
da6b5335 | 2173 | if (gen_iwmmxt_shift(insn, 0x3f, tmp)) { |
7d1b0095 | 2174 | tcg_temp_free_i32(tmp); |
18c9b560 | 2175 | return 1; |
da6b5335 | 2176 | } |
477955bd | 2177 | gen_helper_iwmmxt_rorq(cpu_M0, cpu_env, cpu_M0, tmp); |
18c9b560 AZ |
2178 | break; |
2179 | } | |
7d1b0095 | 2180 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2181 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2182 | gen_op_iwmmxt_set_mup(); | |
2183 | gen_op_iwmmxt_set_cup(); | |
2184 | break; | |
2185 | case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */ | |
2186 | case 0x916: case 0xb16: case 0xd16: case 0xf16: | |
2187 | wrd = (insn >> 12) & 0xf; | |
2188 | rd0 = (insn >> 16) & 0xf; | |
2189 | rd1 = (insn >> 0) & 0xf; | |
2190 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2191 | switch ((insn >> 22) & 3) { | |
2192 | case 0: | |
2193 | if (insn & (1 << 21)) | |
2194 | gen_op_iwmmxt_minsb_M0_wRn(rd1); | |
2195 | else | |
2196 | gen_op_iwmmxt_minub_M0_wRn(rd1); | |
2197 | break; | |
2198 | case 1: | |
2199 | if (insn & (1 << 21)) | |
2200 | gen_op_iwmmxt_minsw_M0_wRn(rd1); | |
2201 | else | |
2202 | gen_op_iwmmxt_minuw_M0_wRn(rd1); | |
2203 | break; | |
2204 | case 2: | |
2205 | if (insn & (1 << 21)) | |
2206 | gen_op_iwmmxt_minsl_M0_wRn(rd1); | |
2207 | else | |
2208 | gen_op_iwmmxt_minul_M0_wRn(rd1); | |
2209 | break; | |
2210 | case 3: | |
2211 | return 1; | |
2212 | } | |
2213 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2214 | gen_op_iwmmxt_set_mup(); | |
2215 | break; | |
2216 | case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */ | |
2217 | case 0x816: case 0xa16: case 0xc16: case 0xe16: | |
2218 | wrd = (insn >> 12) & 0xf; | |
2219 | rd0 = (insn >> 16) & 0xf; | |
2220 | rd1 = (insn >> 0) & 0xf; | |
2221 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2222 | switch ((insn >> 22) & 3) { | |
2223 | case 0: | |
2224 | if (insn & (1 << 21)) | |
2225 | gen_op_iwmmxt_maxsb_M0_wRn(rd1); | |
2226 | else | |
2227 | gen_op_iwmmxt_maxub_M0_wRn(rd1); | |
2228 | break; | |
2229 | case 1: | |
2230 | if (insn & (1 << 21)) | |
2231 | gen_op_iwmmxt_maxsw_M0_wRn(rd1); | |
2232 | else | |
2233 | gen_op_iwmmxt_maxuw_M0_wRn(rd1); | |
2234 | break; | |
2235 | case 2: | |
2236 | if (insn & (1 << 21)) | |
2237 | gen_op_iwmmxt_maxsl_M0_wRn(rd1); | |
2238 | else | |
2239 | gen_op_iwmmxt_maxul_M0_wRn(rd1); | |
2240 | break; | |
2241 | case 3: | |
2242 | return 1; | |
2243 | } | |
2244 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2245 | gen_op_iwmmxt_set_mup(); | |
2246 | break; | |
2247 | case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */ | |
2248 | case 0x402: case 0x502: case 0x602: case 0x702: | |
2249 | wrd = (insn >> 12) & 0xf; | |
2250 | rd0 = (insn >> 16) & 0xf; | |
2251 | rd1 = (insn >> 0) & 0xf; | |
2252 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
da6b5335 FN |
2253 | tmp = tcg_const_i32((insn >> 20) & 3); |
2254 | iwmmxt_load_reg(cpu_V1, rd1); | |
2255 | gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, tmp); | |
39d5492a | 2256 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2257 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2258 | gen_op_iwmmxt_set_mup(); | |
2259 | break; | |
2260 | case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */ | |
2261 | case 0x41a: case 0x51a: case 0x61a: case 0x71a: | |
2262 | case 0x81a: case 0x91a: case 0xa1a: case 0xb1a: | |
2263 | case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a: | |
2264 | wrd = (insn >> 12) & 0xf; | |
2265 | rd0 = (insn >> 16) & 0xf; | |
2266 | rd1 = (insn >> 0) & 0xf; | |
2267 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2268 | switch ((insn >> 20) & 0xf) { | |
2269 | case 0x0: | |
2270 | gen_op_iwmmxt_subnb_M0_wRn(rd1); | |
2271 | break; | |
2272 | case 0x1: | |
2273 | gen_op_iwmmxt_subub_M0_wRn(rd1); | |
2274 | break; | |
2275 | case 0x3: | |
2276 | gen_op_iwmmxt_subsb_M0_wRn(rd1); | |
2277 | break; | |
2278 | case 0x4: | |
2279 | gen_op_iwmmxt_subnw_M0_wRn(rd1); | |
2280 | break; | |
2281 | case 0x5: | |
2282 | gen_op_iwmmxt_subuw_M0_wRn(rd1); | |
2283 | break; | |
2284 | case 0x7: | |
2285 | gen_op_iwmmxt_subsw_M0_wRn(rd1); | |
2286 | break; | |
2287 | case 0x8: | |
2288 | gen_op_iwmmxt_subnl_M0_wRn(rd1); | |
2289 | break; | |
2290 | case 0x9: | |
2291 | gen_op_iwmmxt_subul_M0_wRn(rd1); | |
2292 | break; | |
2293 | case 0xb: | |
2294 | gen_op_iwmmxt_subsl_M0_wRn(rd1); | |
2295 | break; | |
2296 | default: | |
2297 | return 1; | |
2298 | } | |
2299 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2300 | gen_op_iwmmxt_set_mup(); | |
2301 | gen_op_iwmmxt_set_cup(); | |
2302 | break; | |
2303 | case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */ | |
2304 | case 0x41e: case 0x51e: case 0x61e: case 0x71e: | |
2305 | case 0x81e: case 0x91e: case 0xa1e: case 0xb1e: | |
2306 | case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e: | |
2307 | wrd = (insn >> 12) & 0xf; | |
2308 | rd0 = (insn >> 16) & 0xf; | |
2309 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
da6b5335 | 2310 | tmp = tcg_const_i32(((insn >> 16) & 0xf0) | (insn & 0x0f)); |
477955bd | 2311 | gen_helper_iwmmxt_shufh(cpu_M0, cpu_env, cpu_M0, tmp); |
39d5492a | 2312 | tcg_temp_free_i32(tmp); |
18c9b560 AZ |
2313 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2314 | gen_op_iwmmxt_set_mup(); | |
2315 | gen_op_iwmmxt_set_cup(); | |
2316 | break; | |
2317 | case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */ | |
2318 | case 0x418: case 0x518: case 0x618: case 0x718: | |
2319 | case 0x818: case 0x918: case 0xa18: case 0xb18: | |
2320 | case 0xc18: case 0xd18: case 0xe18: case 0xf18: | |
2321 | wrd = (insn >> 12) & 0xf; | |
2322 | rd0 = (insn >> 16) & 0xf; | |
2323 | rd1 = (insn >> 0) & 0xf; | |
2324 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
2325 | switch ((insn >> 20) & 0xf) { | |
2326 | case 0x0: | |
2327 | gen_op_iwmmxt_addnb_M0_wRn(rd1); | |
2328 | break; | |
2329 | case 0x1: | |
2330 | gen_op_iwmmxt_addub_M0_wRn(rd1); | |
2331 | break; | |
2332 | case 0x3: | |
2333 | gen_op_iwmmxt_addsb_M0_wRn(rd1); | |
2334 | break; | |
2335 | case 0x4: | |
2336 | gen_op_iwmmxt_addnw_M0_wRn(rd1); | |
2337 | break; | |
2338 | case 0x5: | |
2339 | gen_op_iwmmxt_adduw_M0_wRn(rd1); | |
2340 | break; | |
2341 | case 0x7: | |
2342 | gen_op_iwmmxt_addsw_M0_wRn(rd1); | |
2343 | break; | |
2344 | case 0x8: | |
2345 | gen_op_iwmmxt_addnl_M0_wRn(rd1); | |
2346 | break; | |
2347 | case 0x9: | |
2348 | gen_op_iwmmxt_addul_M0_wRn(rd1); | |
2349 | break; | |
2350 | case 0xb: | |
2351 | gen_op_iwmmxt_addsl_M0_wRn(rd1); | |
2352 | break; | |
2353 | default: | |
2354 | return 1; | |
2355 | } | |
2356 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2357 | gen_op_iwmmxt_set_mup(); | |
2358 | gen_op_iwmmxt_set_cup(); | |
2359 | break; | |
2360 | case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */ | |
2361 | case 0x408: case 0x508: case 0x608: case 0x708: | |
2362 | case 0x808: case 0x908: case 0xa08: case 0xb08: | |
2363 | case 0xc08: case 0xd08: case 0xe08: case 0xf08: | |
da6b5335 FN |
2364 | if (!(insn & (1 << 20)) || ((insn >> 22) & 3) == 0) |
2365 | return 1; | |
18c9b560 AZ |
2366 | wrd = (insn >> 12) & 0xf; |
2367 | rd0 = (insn >> 16) & 0xf; | |
2368 | rd1 = (insn >> 0) & 0xf; | |
2369 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
18c9b560 | 2370 | switch ((insn >> 22) & 3) { |
18c9b560 AZ |
2371 | case 1: |
2372 | if (insn & (1 << 21)) | |
2373 | gen_op_iwmmxt_packsw_M0_wRn(rd1); | |
2374 | else | |
2375 | gen_op_iwmmxt_packuw_M0_wRn(rd1); | |
2376 | break; | |
2377 | case 2: | |
2378 | if (insn & (1 << 21)) | |
2379 | gen_op_iwmmxt_packsl_M0_wRn(rd1); | |
2380 | else | |
2381 | gen_op_iwmmxt_packul_M0_wRn(rd1); | |
2382 | break; | |
2383 | case 3: | |
2384 | if (insn & (1 << 21)) | |
2385 | gen_op_iwmmxt_packsq_M0_wRn(rd1); | |
2386 | else | |
2387 | gen_op_iwmmxt_packuq_M0_wRn(rd1); | |
2388 | break; | |
2389 | } | |
2390 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
2391 | gen_op_iwmmxt_set_mup(); | |
2392 | gen_op_iwmmxt_set_cup(); | |
2393 | break; | |
2394 | case 0x201: case 0x203: case 0x205: case 0x207: | |
2395 | case 0x209: case 0x20b: case 0x20d: case 0x20f: | |
2396 | case 0x211: case 0x213: case 0x215: case 0x217: | |
2397 | case 0x219: case 0x21b: case 0x21d: case 0x21f: | |
2398 | wrd = (insn >> 5) & 0xf; | |
2399 | rd0 = (insn >> 12) & 0xf; | |
2400 | rd1 = (insn >> 0) & 0xf; | |
2401 | if (rd0 == 0xf || rd1 == 0xf) | |
2402 | return 1; | |
2403 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
da6b5335 FN |
2404 | tmp = load_reg(s, rd0); |
2405 | tmp2 = load_reg(s, rd1); | |
18c9b560 AZ |
2406 | switch ((insn >> 16) & 0xf) { |
2407 | case 0x0: /* TMIA */ | |
da6b5335 | 2408 | gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 AZ |
2409 | break; |
2410 | case 0x8: /* TMIAPH */ | |
da6b5335 | 2411 | gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 AZ |
2412 | break; |
2413 | case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */ | |
18c9b560 | 2414 | if (insn & (1 << 16)) |
da6b5335 | 2415 | tcg_gen_shri_i32(tmp, tmp, 16); |
18c9b560 | 2416 | if (insn & (1 << 17)) |
da6b5335 FN |
2417 | tcg_gen_shri_i32(tmp2, tmp2, 16); |
2418 | gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); | |
18c9b560 AZ |
2419 | break; |
2420 | default: | |
7d1b0095 PM |
2421 | tcg_temp_free_i32(tmp2); |
2422 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
2423 | return 1; |
2424 | } | |
7d1b0095 PM |
2425 | tcg_temp_free_i32(tmp2); |
2426 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
2427 | gen_op_iwmmxt_movq_wRn_M0(wrd); |
2428 | gen_op_iwmmxt_set_mup(); | |
2429 | break; | |
2430 | default: | |
2431 | return 1; | |
2432 | } | |
2433 | ||
2434 | return 0; | |
2435 | } | |
2436 | ||
a1c7273b | 2437 | /* Disassemble an XScale DSP instruction. Returns nonzero if an error occurred |
18c9b560 | 2438 | (ie. an undefined instruction). */ |
0ecb72a5 | 2439 | static int disas_dsp_insn(CPUARMState *env, DisasContext *s, uint32_t insn) |
18c9b560 AZ |
2440 | { |
2441 | int acc, rd0, rd1, rdhi, rdlo; | |
39d5492a | 2442 | TCGv_i32 tmp, tmp2; |
18c9b560 AZ |
2443 | |
2444 | if ((insn & 0x0ff00f10) == 0x0e200010) { | |
2445 | /* Multiply with Internal Accumulate Format */ | |
2446 | rd0 = (insn >> 12) & 0xf; | |
2447 | rd1 = insn & 0xf; | |
2448 | acc = (insn >> 5) & 7; | |
2449 | ||
2450 | if (acc != 0) | |
2451 | return 1; | |
2452 | ||
3a554c0f FN |
2453 | tmp = load_reg(s, rd0); |
2454 | tmp2 = load_reg(s, rd1); | |
18c9b560 AZ |
2455 | switch ((insn >> 16) & 0xf) { |
2456 | case 0x0: /* MIA */ | |
3a554c0f | 2457 | gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 AZ |
2458 | break; |
2459 | case 0x8: /* MIAPH */ | |
3a554c0f | 2460 | gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, tmp, tmp2); |
18c9b560 AZ |
2461 | break; |
2462 | case 0xc: /* MIABB */ | |
2463 | case 0xd: /* MIABT */ | |
2464 | case 0xe: /* MIATB */ | |
2465 | case 0xf: /* MIATT */ | |
18c9b560 | 2466 | if (insn & (1 << 16)) |
3a554c0f | 2467 | tcg_gen_shri_i32(tmp, tmp, 16); |
18c9b560 | 2468 | if (insn & (1 << 17)) |
3a554c0f FN |
2469 | tcg_gen_shri_i32(tmp2, tmp2, 16); |
2470 | gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, tmp, tmp2); | |
18c9b560 AZ |
2471 | break; |
2472 | default: | |
2473 | return 1; | |
2474 | } | |
7d1b0095 PM |
2475 | tcg_temp_free_i32(tmp2); |
2476 | tcg_temp_free_i32(tmp); | |
18c9b560 AZ |
2477 | |
2478 | gen_op_iwmmxt_movq_wRn_M0(acc); | |
2479 | return 0; | |
2480 | } | |
2481 | ||
2482 | if ((insn & 0x0fe00ff8) == 0x0c400000) { | |
2483 | /* Internal Accumulator Access Format */ | |
2484 | rdhi = (insn >> 16) & 0xf; | |
2485 | rdlo = (insn >> 12) & 0xf; | |
2486 | acc = insn & 7; | |
2487 | ||
2488 | if (acc != 0) | |
2489 | return 1; | |
2490 | ||
2491 | if (insn & ARM_CP_RW_BIT) { /* MRA */ | |
3a554c0f FN |
2492 | iwmmxt_load_reg(cpu_V0, acc); |
2493 | tcg_gen_trunc_i64_i32(cpu_R[rdlo], cpu_V0); | |
2494 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); | |
2495 | tcg_gen_trunc_i64_i32(cpu_R[rdhi], cpu_V0); | |
2496 | tcg_gen_andi_i32(cpu_R[rdhi], cpu_R[rdhi], (1 << (40 - 32)) - 1); | |
18c9b560 | 2497 | } else { /* MAR */ |
3a554c0f FN |
2498 | tcg_gen_concat_i32_i64(cpu_V0, cpu_R[rdlo], cpu_R[rdhi]); |
2499 | iwmmxt_store_reg(cpu_V0, acc); | |
18c9b560 AZ |
2500 | } |
2501 | return 0; | |
2502 | } | |
2503 | ||
2504 | return 1; | |
2505 | } | |
2506 | ||
9ee6e8bb PB |
2507 | #define VFP_REG_SHR(x, n) (((n) > 0) ? (x) >> (n) : (x) << -(n)) |
2508 | #define VFP_SREG(insn, bigbit, smallbit) \ | |
2509 | ((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1)) | |
2510 | #define VFP_DREG(reg, insn, bigbit, smallbit) do { \ | |
2511 | if (arm_feature(env, ARM_FEATURE_VFP3)) { \ | |
2512 | reg = (((insn) >> (bigbit)) & 0x0f) \ | |
2513 | | (((insn) >> ((smallbit) - 4)) & 0x10); \ | |
2514 | } else { \ | |
2515 | if (insn & (1 << (smallbit))) \ | |
2516 | return 1; \ | |
2517 | reg = ((insn) >> (bigbit)) & 0x0f; \ | |
2518 | }} while (0) | |
2519 | ||
2520 | #define VFP_SREG_D(insn) VFP_SREG(insn, 12, 22) | |
2521 | #define VFP_DREG_D(reg, insn) VFP_DREG(reg, insn, 12, 22) | |
2522 | #define VFP_SREG_N(insn) VFP_SREG(insn, 16, 7) | |
2523 | #define VFP_DREG_N(reg, insn) VFP_DREG(reg, insn, 16, 7) | |
2524 | #define VFP_SREG_M(insn) VFP_SREG(insn, 0, 5) | |
2525 | #define VFP_DREG_M(reg, insn) VFP_DREG(reg, insn, 0, 5) | |
2526 | ||
4373f3ce | 2527 | /* Move between integer and VFP cores. */ |
39d5492a | 2528 | static TCGv_i32 gen_vfp_mrs(void) |
4373f3ce | 2529 | { |
39d5492a | 2530 | TCGv_i32 tmp = tcg_temp_new_i32(); |
4373f3ce PB |
2531 | tcg_gen_mov_i32(tmp, cpu_F0s); |
2532 | return tmp; | |
2533 | } | |
2534 | ||
39d5492a | 2535 | static void gen_vfp_msr(TCGv_i32 tmp) |
4373f3ce PB |
2536 | { |
2537 | tcg_gen_mov_i32(cpu_F0s, tmp); | |
7d1b0095 | 2538 | tcg_temp_free_i32(tmp); |
4373f3ce PB |
2539 | } |
2540 | ||
39d5492a | 2541 | static void gen_neon_dup_u8(TCGv_i32 var, int shift) |
ad69471c | 2542 | { |
39d5492a | 2543 | TCGv_i32 tmp = tcg_temp_new_i32(); |
ad69471c PB |
2544 | if (shift) |
2545 | tcg_gen_shri_i32(var, var, shift); | |
86831435 | 2546 | tcg_gen_ext8u_i32(var, var); |
ad69471c PB |
2547 | tcg_gen_shli_i32(tmp, var, 8); |
2548 | tcg_gen_or_i32(var, var, tmp); | |
2549 | tcg_gen_shli_i32(tmp, var, 16); | |
2550 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 2551 | tcg_temp_free_i32(tmp); |
ad69471c PB |
2552 | } |
2553 | ||
39d5492a | 2554 | static void gen_neon_dup_low16(TCGv_i32 var) |
ad69471c | 2555 | { |
39d5492a | 2556 | TCGv_i32 tmp = tcg_temp_new_i32(); |
86831435 | 2557 | tcg_gen_ext16u_i32(var, var); |
ad69471c PB |
2558 | tcg_gen_shli_i32(tmp, var, 16); |
2559 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 2560 | tcg_temp_free_i32(tmp); |
ad69471c PB |
2561 | } |
2562 | ||
39d5492a | 2563 | static void gen_neon_dup_high16(TCGv_i32 var) |
ad69471c | 2564 | { |
39d5492a | 2565 | TCGv_i32 tmp = tcg_temp_new_i32(); |
ad69471c PB |
2566 | tcg_gen_andi_i32(var, var, 0xffff0000); |
2567 | tcg_gen_shri_i32(tmp, var, 16); | |
2568 | tcg_gen_or_i32(var, var, tmp); | |
7d1b0095 | 2569 | tcg_temp_free_i32(tmp); |
ad69471c PB |
2570 | } |
2571 | ||
39d5492a | 2572 | static TCGv_i32 gen_load_and_replicate(DisasContext *s, TCGv_i32 addr, int size) |
8e18cde3 PM |
2573 | { |
2574 | /* Load a single Neon element and replicate into a 32 bit TCG reg */ | |
58ab8e96 | 2575 | TCGv_i32 tmp = tcg_temp_new_i32(); |
8e18cde3 PM |
2576 | switch (size) { |
2577 | case 0: | |
58ab8e96 | 2578 | tcg_gen_qemu_ld8u(tmp, addr, IS_USER(s)); |
8e18cde3 PM |
2579 | gen_neon_dup_u8(tmp, 0); |
2580 | break; | |
2581 | case 1: | |
58ab8e96 | 2582 | tcg_gen_qemu_ld16u(tmp, addr, IS_USER(s)); |
8e18cde3 PM |
2583 | gen_neon_dup_low16(tmp); |
2584 | break; | |
2585 | case 2: | |
58ab8e96 | 2586 | tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); |
8e18cde3 PM |
2587 | break; |
2588 | default: /* Avoid compiler warnings. */ | |
2589 | abort(); | |
2590 | } | |
2591 | return tmp; | |
2592 | } | |
2593 | ||
a1c7273b | 2594 | /* Disassemble a VFP instruction. Returns nonzero if an error occurred |
b7bcbe95 | 2595 | (ie. an undefined instruction). */ |
0ecb72a5 | 2596 | static int disas_vfp_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
b7bcbe95 FB |
2597 | { |
2598 | uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask; | |
2599 | int dp, veclen; | |
39d5492a PM |
2600 | TCGv_i32 addr; |
2601 | TCGv_i32 tmp; | |
2602 | TCGv_i32 tmp2; | |
b7bcbe95 | 2603 | |
40f137e1 PB |
2604 | if (!arm_feature(env, ARM_FEATURE_VFP)) |
2605 | return 1; | |
2606 | ||
5df8bac1 | 2607 | if (!s->vfp_enabled) { |
9ee6e8bb | 2608 | /* VFP disabled. Only allow fmxr/fmrx to/from some control regs. */ |
40f137e1 PB |
2609 | if ((insn & 0x0fe00fff) != 0x0ee00a10) |
2610 | return 1; | |
2611 | rn = (insn >> 16) & 0xf; | |
9ee6e8bb PB |
2612 | if (rn != ARM_VFP_FPSID && rn != ARM_VFP_FPEXC |
2613 | && rn != ARM_VFP_MVFR1 && rn != ARM_VFP_MVFR0) | |
40f137e1 PB |
2614 | return 1; |
2615 | } | |
b7bcbe95 FB |
2616 | dp = ((insn & 0xf00) == 0xb00); |
2617 | switch ((insn >> 24) & 0xf) { | |
2618 | case 0xe: | |
2619 | if (insn & (1 << 4)) { | |
2620 | /* single register transfer */ | |
b7bcbe95 FB |
2621 | rd = (insn >> 12) & 0xf; |
2622 | if (dp) { | |
9ee6e8bb PB |
2623 | int size; |
2624 | int pass; | |
2625 | ||
2626 | VFP_DREG_N(rn, insn); | |
2627 | if (insn & 0xf) | |
b7bcbe95 | 2628 | return 1; |
9ee6e8bb PB |
2629 | if (insn & 0x00c00060 |
2630 | && !arm_feature(env, ARM_FEATURE_NEON)) | |
2631 | return 1; | |
2632 | ||
2633 | pass = (insn >> 21) & 1; | |
2634 | if (insn & (1 << 22)) { | |
2635 | size = 0; | |
2636 | offset = ((insn >> 5) & 3) * 8; | |
2637 | } else if (insn & (1 << 5)) { | |
2638 | size = 1; | |
2639 | offset = (insn & (1 << 6)) ? 16 : 0; | |
2640 | } else { | |
2641 | size = 2; | |
2642 | offset = 0; | |
2643 | } | |
18c9b560 | 2644 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 | 2645 | /* vfp->arm */ |
ad69471c | 2646 | tmp = neon_load_reg(rn, pass); |
9ee6e8bb PB |
2647 | switch (size) { |
2648 | case 0: | |
9ee6e8bb | 2649 | if (offset) |
ad69471c | 2650 | tcg_gen_shri_i32(tmp, tmp, offset); |
9ee6e8bb | 2651 | if (insn & (1 << 23)) |
ad69471c | 2652 | gen_uxtb(tmp); |
9ee6e8bb | 2653 | else |
ad69471c | 2654 | gen_sxtb(tmp); |
9ee6e8bb PB |
2655 | break; |
2656 | case 1: | |
9ee6e8bb PB |
2657 | if (insn & (1 << 23)) { |
2658 | if (offset) { | |
ad69471c | 2659 | tcg_gen_shri_i32(tmp, tmp, 16); |
9ee6e8bb | 2660 | } else { |
ad69471c | 2661 | gen_uxth(tmp); |
9ee6e8bb PB |
2662 | } |
2663 | } else { | |
2664 | if (offset) { | |
ad69471c | 2665 | tcg_gen_sari_i32(tmp, tmp, 16); |
9ee6e8bb | 2666 | } else { |
ad69471c | 2667 | gen_sxth(tmp); |
9ee6e8bb PB |
2668 | } |
2669 | } | |
2670 | break; | |
2671 | case 2: | |
9ee6e8bb PB |
2672 | break; |
2673 | } | |
ad69471c | 2674 | store_reg(s, rd, tmp); |
b7bcbe95 FB |
2675 | } else { |
2676 | /* arm->vfp */ | |
ad69471c | 2677 | tmp = load_reg(s, rd); |
9ee6e8bb PB |
2678 | if (insn & (1 << 23)) { |
2679 | /* VDUP */ | |
2680 | if (size == 0) { | |
ad69471c | 2681 | gen_neon_dup_u8(tmp, 0); |
9ee6e8bb | 2682 | } else if (size == 1) { |
ad69471c | 2683 | gen_neon_dup_low16(tmp); |
9ee6e8bb | 2684 | } |
cbbccffc | 2685 | for (n = 0; n <= pass * 2; n++) { |
7d1b0095 | 2686 | tmp2 = tcg_temp_new_i32(); |
cbbccffc PB |
2687 | tcg_gen_mov_i32(tmp2, tmp); |
2688 | neon_store_reg(rn, n, tmp2); | |
2689 | } | |
2690 | neon_store_reg(rn, n, tmp); | |
9ee6e8bb PB |
2691 | } else { |
2692 | /* VMOV */ | |
2693 | switch (size) { | |
2694 | case 0: | |
ad69471c | 2695 | tmp2 = neon_load_reg(rn, pass); |
d593c48e | 2696 | tcg_gen_deposit_i32(tmp, tmp2, tmp, offset, 8); |
7d1b0095 | 2697 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
2698 | break; |
2699 | case 1: | |
ad69471c | 2700 | tmp2 = neon_load_reg(rn, pass); |
d593c48e | 2701 | tcg_gen_deposit_i32(tmp, tmp2, tmp, offset, 16); |
7d1b0095 | 2702 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
2703 | break; |
2704 | case 2: | |
9ee6e8bb PB |
2705 | break; |
2706 | } | |
ad69471c | 2707 | neon_store_reg(rn, pass, tmp); |
9ee6e8bb | 2708 | } |
b7bcbe95 | 2709 | } |
9ee6e8bb PB |
2710 | } else { /* !dp */ |
2711 | if ((insn & 0x6f) != 0x00) | |
2712 | return 1; | |
2713 | rn = VFP_SREG_N(insn); | |
18c9b560 | 2714 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 FB |
2715 | /* vfp->arm */ |
2716 | if (insn & (1 << 21)) { | |
2717 | /* system register */ | |
40f137e1 | 2718 | rn >>= 1; |
9ee6e8bb | 2719 | |
b7bcbe95 | 2720 | switch (rn) { |
40f137e1 | 2721 | case ARM_VFP_FPSID: |
4373f3ce | 2722 | /* VFP2 allows access to FSID from userspace. |
9ee6e8bb PB |
2723 | VFP3 restricts all id registers to privileged |
2724 | accesses. */ | |
2725 | if (IS_USER(s) | |
2726 | && arm_feature(env, ARM_FEATURE_VFP3)) | |
2727 | return 1; | |
4373f3ce | 2728 | tmp = load_cpu_field(vfp.xregs[rn]); |
9ee6e8bb | 2729 | break; |
40f137e1 | 2730 | case ARM_VFP_FPEXC: |
9ee6e8bb PB |
2731 | if (IS_USER(s)) |
2732 | return 1; | |
4373f3ce | 2733 | tmp = load_cpu_field(vfp.xregs[rn]); |
9ee6e8bb | 2734 | break; |
40f137e1 PB |
2735 | case ARM_VFP_FPINST: |
2736 | case ARM_VFP_FPINST2: | |
9ee6e8bb PB |
2737 | /* Not present in VFP3. */ |
2738 | if (IS_USER(s) | |
2739 | || arm_feature(env, ARM_FEATURE_VFP3)) | |
2740 | return 1; | |
4373f3ce | 2741 | tmp = load_cpu_field(vfp.xregs[rn]); |
b7bcbe95 | 2742 | break; |
40f137e1 | 2743 | case ARM_VFP_FPSCR: |
601d70b9 | 2744 | if (rd == 15) { |
4373f3ce PB |
2745 | tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]); |
2746 | tcg_gen_andi_i32(tmp, tmp, 0xf0000000); | |
2747 | } else { | |
7d1b0095 | 2748 | tmp = tcg_temp_new_i32(); |
4373f3ce PB |
2749 | gen_helper_vfp_get_fpscr(tmp, cpu_env); |
2750 | } | |
b7bcbe95 | 2751 | break; |
9ee6e8bb PB |
2752 | case ARM_VFP_MVFR0: |
2753 | case ARM_VFP_MVFR1: | |
2754 | if (IS_USER(s) | |
06ed5d66 | 2755 | || !arm_feature(env, ARM_FEATURE_MVFR)) |
9ee6e8bb | 2756 | return 1; |
4373f3ce | 2757 | tmp = load_cpu_field(vfp.xregs[rn]); |
9ee6e8bb | 2758 | break; |
b7bcbe95 FB |
2759 | default: |
2760 | return 1; | |
2761 | } | |
2762 | } else { | |
2763 | gen_mov_F0_vreg(0, rn); | |
4373f3ce | 2764 | tmp = gen_vfp_mrs(); |
b7bcbe95 FB |
2765 | } |
2766 | if (rd == 15) { | |
b5ff1b31 | 2767 | /* Set the 4 flag bits in the CPSR. */ |
4373f3ce | 2768 | gen_set_nzcv(tmp); |
7d1b0095 | 2769 | tcg_temp_free_i32(tmp); |
4373f3ce PB |
2770 | } else { |
2771 | store_reg(s, rd, tmp); | |
2772 | } | |
b7bcbe95 FB |
2773 | } else { |
2774 | /* arm->vfp */ | |
b7bcbe95 | 2775 | if (insn & (1 << 21)) { |
40f137e1 | 2776 | rn >>= 1; |
b7bcbe95 FB |
2777 | /* system register */ |
2778 | switch (rn) { | |
40f137e1 | 2779 | case ARM_VFP_FPSID: |
9ee6e8bb PB |
2780 | case ARM_VFP_MVFR0: |
2781 | case ARM_VFP_MVFR1: | |
b7bcbe95 FB |
2782 | /* Writes are ignored. */ |
2783 | break; | |
40f137e1 | 2784 | case ARM_VFP_FPSCR: |
e4c1cfa5 | 2785 | tmp = load_reg(s, rd); |
4373f3ce | 2786 | gen_helper_vfp_set_fpscr(cpu_env, tmp); |
7d1b0095 | 2787 | tcg_temp_free_i32(tmp); |
b5ff1b31 | 2788 | gen_lookup_tb(s); |
b7bcbe95 | 2789 | break; |
40f137e1 | 2790 | case ARM_VFP_FPEXC: |
9ee6e8bb PB |
2791 | if (IS_USER(s)) |
2792 | return 1; | |
71b3c3de JR |
2793 | /* TODO: VFP subarchitecture support. |
2794 | * For now, keep the EN bit only */ | |
e4c1cfa5 | 2795 | tmp = load_reg(s, rd); |
71b3c3de | 2796 | tcg_gen_andi_i32(tmp, tmp, 1 << 30); |
4373f3ce | 2797 | store_cpu_field(tmp, vfp.xregs[rn]); |
40f137e1 PB |
2798 | gen_lookup_tb(s); |
2799 | break; | |
2800 | case ARM_VFP_FPINST: | |
2801 | case ARM_VFP_FPINST2: | |
e4c1cfa5 | 2802 | tmp = load_reg(s, rd); |
4373f3ce | 2803 | store_cpu_field(tmp, vfp.xregs[rn]); |
40f137e1 | 2804 | break; |
b7bcbe95 FB |
2805 | default: |
2806 | return 1; | |
2807 | } | |
2808 | } else { | |
e4c1cfa5 | 2809 | tmp = load_reg(s, rd); |
4373f3ce | 2810 | gen_vfp_msr(tmp); |
b7bcbe95 FB |
2811 | gen_mov_vreg_F0(0, rn); |
2812 | } | |
2813 | } | |
2814 | } | |
2815 | } else { | |
2816 | /* data processing */ | |
2817 | /* The opcode is in bits 23, 21, 20 and 6. */ | |
2818 | op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1); | |
2819 | if (dp) { | |
2820 | if (op == 15) { | |
2821 | /* rn is opcode */ | |
2822 | rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1); | |
2823 | } else { | |
2824 | /* rn is register number */ | |
9ee6e8bb | 2825 | VFP_DREG_N(rn, insn); |
b7bcbe95 FB |
2826 | } |
2827 | ||
04595bf6 | 2828 | if (op == 15 && (rn == 15 || ((rn & 0x1c) == 0x18))) { |
b7bcbe95 | 2829 | /* Integer or single precision destination. */ |
9ee6e8bb | 2830 | rd = VFP_SREG_D(insn); |
b7bcbe95 | 2831 | } else { |
9ee6e8bb | 2832 | VFP_DREG_D(rd, insn); |
b7bcbe95 | 2833 | } |
04595bf6 PM |
2834 | if (op == 15 && |
2835 | (((rn & 0x1c) == 0x10) || ((rn & 0x14) == 0x14))) { | |
2836 | /* VCVT from int is always from S reg regardless of dp bit. | |
2837 | * VCVT with immediate frac_bits has same format as SREG_M | |
2838 | */ | |
2839 | rm = VFP_SREG_M(insn); | |
b7bcbe95 | 2840 | } else { |
9ee6e8bb | 2841 | VFP_DREG_M(rm, insn); |
b7bcbe95 FB |
2842 | } |
2843 | } else { | |
9ee6e8bb | 2844 | rn = VFP_SREG_N(insn); |
b7bcbe95 FB |
2845 | if (op == 15 && rn == 15) { |
2846 | /* Double precision destination. */ | |
9ee6e8bb PB |
2847 | VFP_DREG_D(rd, insn); |
2848 | } else { | |
2849 | rd = VFP_SREG_D(insn); | |
2850 | } | |
04595bf6 PM |
2851 | /* NB that we implicitly rely on the encoding for the frac_bits |
2852 | * in VCVT of fixed to float being the same as that of an SREG_M | |
2853 | */ | |
9ee6e8bb | 2854 | rm = VFP_SREG_M(insn); |
b7bcbe95 FB |
2855 | } |
2856 | ||
69d1fc22 | 2857 | veclen = s->vec_len; |
b7bcbe95 FB |
2858 | if (op == 15 && rn > 3) |
2859 | veclen = 0; | |
2860 | ||
2861 | /* Shut up compiler warnings. */ | |
2862 | delta_m = 0; | |
2863 | delta_d = 0; | |
2864 | bank_mask = 0; | |
3b46e624 | 2865 | |
b7bcbe95 FB |
2866 | if (veclen > 0) { |
2867 | if (dp) | |
2868 | bank_mask = 0xc; | |
2869 | else | |
2870 | bank_mask = 0x18; | |
2871 | ||
2872 | /* Figure out what type of vector operation this is. */ | |
2873 | if ((rd & bank_mask) == 0) { | |
2874 | /* scalar */ | |
2875 | veclen = 0; | |
2876 | } else { | |
2877 | if (dp) | |
69d1fc22 | 2878 | delta_d = (s->vec_stride >> 1) + 1; |
b7bcbe95 | 2879 | else |
69d1fc22 | 2880 | delta_d = s->vec_stride + 1; |
b7bcbe95 FB |
2881 | |
2882 | if ((rm & bank_mask) == 0) { | |
2883 | /* mixed scalar/vector */ | |
2884 | delta_m = 0; | |
2885 | } else { | |
2886 | /* vector */ | |
2887 | delta_m = delta_d; | |
2888 | } | |
2889 | } | |
2890 | } | |
2891 | ||
2892 | /* Load the initial operands. */ | |
2893 | if (op == 15) { | |
2894 | switch (rn) { | |
2895 | case 16: | |
2896 | case 17: | |
2897 | /* Integer source */ | |
2898 | gen_mov_F0_vreg(0, rm); | |
2899 | break; | |
2900 | case 8: | |
2901 | case 9: | |
2902 | /* Compare */ | |
2903 | gen_mov_F0_vreg(dp, rd); | |
2904 | gen_mov_F1_vreg(dp, rm); | |
2905 | break; | |
2906 | case 10: | |
2907 | case 11: | |
2908 | /* Compare with zero */ | |
2909 | gen_mov_F0_vreg(dp, rd); | |
2910 | gen_vfp_F1_ld0(dp); | |
2911 | break; | |
9ee6e8bb PB |
2912 | case 20: |
2913 | case 21: | |
2914 | case 22: | |
2915 | case 23: | |
644ad806 PB |
2916 | case 28: |
2917 | case 29: | |
2918 | case 30: | |
2919 | case 31: | |
9ee6e8bb PB |
2920 | /* Source and destination the same. */ |
2921 | gen_mov_F0_vreg(dp, rd); | |
2922 | break; | |
6e0c0ed1 PM |
2923 | case 4: |
2924 | case 5: | |
2925 | case 6: | |
2926 | case 7: | |
2927 | /* VCVTB, VCVTT: only present with the halfprec extension, | |
2928 | * UNPREDICTABLE if bit 8 is set (we choose to UNDEF) | |
2929 | */ | |
2930 | if (dp || !arm_feature(env, ARM_FEATURE_VFP_FP16)) { | |
2931 | return 1; | |
2932 | } | |
2933 | /* Otherwise fall through */ | |
b7bcbe95 FB |
2934 | default: |
2935 | /* One source operand. */ | |
2936 | gen_mov_F0_vreg(dp, rm); | |
9ee6e8bb | 2937 | break; |
b7bcbe95 FB |
2938 | } |
2939 | } else { | |
2940 | /* Two source operands. */ | |
2941 | gen_mov_F0_vreg(dp, rn); | |
2942 | gen_mov_F1_vreg(dp, rm); | |
2943 | } | |
2944 | ||
2945 | for (;;) { | |
2946 | /* Perform the calculation. */ | |
2947 | switch (op) { | |
605a6aed PM |
2948 | case 0: /* VMLA: fd + (fn * fm) */ |
2949 | /* Note that order of inputs to the add matters for NaNs */ | |
2950 | gen_vfp_F1_mul(dp); | |
2951 | gen_mov_F0_vreg(dp, rd); | |
b7bcbe95 FB |
2952 | gen_vfp_add(dp); |
2953 | break; | |
605a6aed | 2954 | case 1: /* VMLS: fd + -(fn * fm) */ |
b7bcbe95 | 2955 | gen_vfp_mul(dp); |
605a6aed PM |
2956 | gen_vfp_F1_neg(dp); |
2957 | gen_mov_F0_vreg(dp, rd); | |
b7bcbe95 FB |
2958 | gen_vfp_add(dp); |
2959 | break; | |
605a6aed PM |
2960 | case 2: /* VNMLS: -fd + (fn * fm) */ |
2961 | /* Note that it isn't valid to replace (-A + B) with (B - A) | |
2962 | * or similar plausible looking simplifications | |
2963 | * because this will give wrong results for NaNs. | |
2964 | */ | |
2965 | gen_vfp_F1_mul(dp); | |
2966 | gen_mov_F0_vreg(dp, rd); | |
2967 | gen_vfp_neg(dp); | |
2968 | gen_vfp_add(dp); | |
b7bcbe95 | 2969 | break; |
605a6aed | 2970 | case 3: /* VNMLA: -fd + -(fn * fm) */ |
b7bcbe95 | 2971 | gen_vfp_mul(dp); |
605a6aed PM |
2972 | gen_vfp_F1_neg(dp); |
2973 | gen_mov_F0_vreg(dp, rd); | |
b7bcbe95 | 2974 | gen_vfp_neg(dp); |
605a6aed | 2975 | gen_vfp_add(dp); |
b7bcbe95 FB |
2976 | break; |
2977 | case 4: /* mul: fn * fm */ | |
2978 | gen_vfp_mul(dp); | |
2979 | break; | |
2980 | case 5: /* nmul: -(fn * fm) */ | |
2981 | gen_vfp_mul(dp); | |
2982 | gen_vfp_neg(dp); | |
2983 | break; | |
2984 | case 6: /* add: fn + fm */ | |
2985 | gen_vfp_add(dp); | |
2986 | break; | |
2987 | case 7: /* sub: fn - fm */ | |
2988 | gen_vfp_sub(dp); | |
2989 | break; | |
2990 | case 8: /* div: fn / fm */ | |
2991 | gen_vfp_div(dp); | |
2992 | break; | |
da97f52c PM |
2993 | case 10: /* VFNMA : fd = muladd(-fd, fn, fm) */ |
2994 | case 11: /* VFNMS : fd = muladd(-fd, -fn, fm) */ | |
2995 | case 12: /* VFMA : fd = muladd( fd, fn, fm) */ | |
2996 | case 13: /* VFMS : fd = muladd( fd, -fn, fm) */ | |
2997 | /* These are fused multiply-add, and must be done as one | |
2998 | * floating point operation with no rounding between the | |
2999 | * multiplication and addition steps. | |
3000 | * NB that doing the negations here as separate steps is | |
3001 | * correct : an input NaN should come out with its sign bit | |
3002 | * flipped if it is a negated-input. | |
3003 | */ | |
3004 | if (!arm_feature(env, ARM_FEATURE_VFP4)) { | |
3005 | return 1; | |
3006 | } | |
3007 | if (dp) { | |
3008 | TCGv_ptr fpst; | |
3009 | TCGv_i64 frd; | |
3010 | if (op & 1) { | |
3011 | /* VFNMS, VFMS */ | |
3012 | gen_helper_vfp_negd(cpu_F0d, cpu_F0d); | |
3013 | } | |
3014 | frd = tcg_temp_new_i64(); | |
3015 | tcg_gen_ld_f64(frd, cpu_env, vfp_reg_offset(dp, rd)); | |
3016 | if (op & 2) { | |
3017 | /* VFNMA, VFNMS */ | |
3018 | gen_helper_vfp_negd(frd, frd); | |
3019 | } | |
3020 | fpst = get_fpstatus_ptr(0); | |
3021 | gen_helper_vfp_muladdd(cpu_F0d, cpu_F0d, | |
3022 | cpu_F1d, frd, fpst); | |
3023 | tcg_temp_free_ptr(fpst); | |
3024 | tcg_temp_free_i64(frd); | |
3025 | } else { | |
3026 | TCGv_ptr fpst; | |
3027 | TCGv_i32 frd; | |
3028 | if (op & 1) { | |
3029 | /* VFNMS, VFMS */ | |
3030 | gen_helper_vfp_negs(cpu_F0s, cpu_F0s); | |
3031 | } | |
3032 | frd = tcg_temp_new_i32(); | |
3033 | tcg_gen_ld_f32(frd, cpu_env, vfp_reg_offset(dp, rd)); | |
3034 | if (op & 2) { | |
3035 | gen_helper_vfp_negs(frd, frd); | |
3036 | } | |
3037 | fpst = get_fpstatus_ptr(0); | |
3038 | gen_helper_vfp_muladds(cpu_F0s, cpu_F0s, | |
3039 | cpu_F1s, frd, fpst); | |
3040 | tcg_temp_free_ptr(fpst); | |
3041 | tcg_temp_free_i32(frd); | |
3042 | } | |
3043 | break; | |
9ee6e8bb PB |
3044 | case 14: /* fconst */ |
3045 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3046 | return 1; | |
3047 | ||
3048 | n = (insn << 12) & 0x80000000; | |
3049 | i = ((insn >> 12) & 0x70) | (insn & 0xf); | |
3050 | if (dp) { | |
3051 | if (i & 0x40) | |
3052 | i |= 0x3f80; | |
3053 | else | |
3054 | i |= 0x4000; | |
3055 | n |= i << 16; | |
4373f3ce | 3056 | tcg_gen_movi_i64(cpu_F0d, ((uint64_t)n) << 32); |
9ee6e8bb PB |
3057 | } else { |
3058 | if (i & 0x40) | |
3059 | i |= 0x780; | |
3060 | else | |
3061 | i |= 0x800; | |
3062 | n |= i << 19; | |
5b340b51 | 3063 | tcg_gen_movi_i32(cpu_F0s, n); |
9ee6e8bb | 3064 | } |
9ee6e8bb | 3065 | break; |
b7bcbe95 FB |
3066 | case 15: /* extension space */ |
3067 | switch (rn) { | |
3068 | case 0: /* cpy */ | |
3069 | /* no-op */ | |
3070 | break; | |
3071 | case 1: /* abs */ | |
3072 | gen_vfp_abs(dp); | |
3073 | break; | |
3074 | case 2: /* neg */ | |
3075 | gen_vfp_neg(dp); | |
3076 | break; | |
3077 | case 3: /* sqrt */ | |
3078 | gen_vfp_sqrt(dp); | |
3079 | break; | |
60011498 | 3080 | case 4: /* vcvtb.f32.f16 */ |
60011498 PB |
3081 | tmp = gen_vfp_mrs(); |
3082 | tcg_gen_ext16u_i32(tmp, tmp); | |
3083 | gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, cpu_env); | |
7d1b0095 | 3084 | tcg_temp_free_i32(tmp); |
60011498 PB |
3085 | break; |
3086 | case 5: /* vcvtt.f32.f16 */ | |
60011498 PB |
3087 | tmp = gen_vfp_mrs(); |
3088 | tcg_gen_shri_i32(tmp, tmp, 16); | |
3089 | gen_helper_vfp_fcvt_f16_to_f32(cpu_F0s, tmp, cpu_env); | |
7d1b0095 | 3090 | tcg_temp_free_i32(tmp); |
60011498 PB |
3091 | break; |
3092 | case 6: /* vcvtb.f16.f32 */ | |
7d1b0095 | 3093 | tmp = tcg_temp_new_i32(); |
60011498 PB |
3094 | gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
3095 | gen_mov_F0_vreg(0, rd); | |
3096 | tmp2 = gen_vfp_mrs(); | |
3097 | tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000); | |
3098 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
7d1b0095 | 3099 | tcg_temp_free_i32(tmp2); |
60011498 PB |
3100 | gen_vfp_msr(tmp); |
3101 | break; | |
3102 | case 7: /* vcvtt.f16.f32 */ | |
7d1b0095 | 3103 | tmp = tcg_temp_new_i32(); |
60011498 PB |
3104 | gen_helper_vfp_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
3105 | tcg_gen_shli_i32(tmp, tmp, 16); | |
3106 | gen_mov_F0_vreg(0, rd); | |
3107 | tmp2 = gen_vfp_mrs(); | |
3108 | tcg_gen_ext16u_i32(tmp2, tmp2); | |
3109 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
7d1b0095 | 3110 | tcg_temp_free_i32(tmp2); |
60011498 PB |
3111 | gen_vfp_msr(tmp); |
3112 | break; | |
b7bcbe95 FB |
3113 | case 8: /* cmp */ |
3114 | gen_vfp_cmp(dp); | |
3115 | break; | |
3116 | case 9: /* cmpe */ | |
3117 | gen_vfp_cmpe(dp); | |
3118 | break; | |
3119 | case 10: /* cmpz */ | |
3120 | gen_vfp_cmp(dp); | |
3121 | break; | |
3122 | case 11: /* cmpez */ | |
3123 | gen_vfp_F1_ld0(dp); | |
3124 | gen_vfp_cmpe(dp); | |
3125 | break; | |
3126 | case 15: /* single<->double conversion */ | |
3127 | if (dp) | |
4373f3ce | 3128 | gen_helper_vfp_fcvtsd(cpu_F0s, cpu_F0d, cpu_env); |
b7bcbe95 | 3129 | else |
4373f3ce | 3130 | gen_helper_vfp_fcvtds(cpu_F0d, cpu_F0s, cpu_env); |
b7bcbe95 FB |
3131 | break; |
3132 | case 16: /* fuito */ | |
5500b06c | 3133 | gen_vfp_uito(dp, 0); |
b7bcbe95 FB |
3134 | break; |
3135 | case 17: /* fsito */ | |
5500b06c | 3136 | gen_vfp_sito(dp, 0); |
b7bcbe95 | 3137 | break; |
9ee6e8bb PB |
3138 | case 20: /* fshto */ |
3139 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3140 | return 1; | |
5500b06c | 3141 | gen_vfp_shto(dp, 16 - rm, 0); |
9ee6e8bb PB |
3142 | break; |
3143 | case 21: /* fslto */ | |
3144 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3145 | return 1; | |
5500b06c | 3146 | gen_vfp_slto(dp, 32 - rm, 0); |
9ee6e8bb PB |
3147 | break; |
3148 | case 22: /* fuhto */ | |
3149 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3150 | return 1; | |
5500b06c | 3151 | gen_vfp_uhto(dp, 16 - rm, 0); |
9ee6e8bb PB |
3152 | break; |
3153 | case 23: /* fulto */ | |
3154 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3155 | return 1; | |
5500b06c | 3156 | gen_vfp_ulto(dp, 32 - rm, 0); |
9ee6e8bb | 3157 | break; |
b7bcbe95 | 3158 | case 24: /* ftoui */ |
5500b06c | 3159 | gen_vfp_toui(dp, 0); |
b7bcbe95 FB |
3160 | break; |
3161 | case 25: /* ftouiz */ | |
5500b06c | 3162 | gen_vfp_touiz(dp, 0); |
b7bcbe95 FB |
3163 | break; |
3164 | case 26: /* ftosi */ | |
5500b06c | 3165 | gen_vfp_tosi(dp, 0); |
b7bcbe95 FB |
3166 | break; |
3167 | case 27: /* ftosiz */ | |
5500b06c | 3168 | gen_vfp_tosiz(dp, 0); |
b7bcbe95 | 3169 | break; |
9ee6e8bb PB |
3170 | case 28: /* ftosh */ |
3171 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3172 | return 1; | |
5500b06c | 3173 | gen_vfp_tosh(dp, 16 - rm, 0); |
9ee6e8bb PB |
3174 | break; |
3175 | case 29: /* ftosl */ | |
3176 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3177 | return 1; | |
5500b06c | 3178 | gen_vfp_tosl(dp, 32 - rm, 0); |
9ee6e8bb PB |
3179 | break; |
3180 | case 30: /* ftouh */ | |
3181 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3182 | return 1; | |
5500b06c | 3183 | gen_vfp_touh(dp, 16 - rm, 0); |
9ee6e8bb PB |
3184 | break; |
3185 | case 31: /* ftoul */ | |
3186 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
3187 | return 1; | |
5500b06c | 3188 | gen_vfp_toul(dp, 32 - rm, 0); |
9ee6e8bb | 3189 | break; |
b7bcbe95 | 3190 | default: /* undefined */ |
b7bcbe95 FB |
3191 | return 1; |
3192 | } | |
3193 | break; | |
3194 | default: /* undefined */ | |
b7bcbe95 FB |
3195 | return 1; |
3196 | } | |
3197 | ||
3198 | /* Write back the result. */ | |
3199 | if (op == 15 && (rn >= 8 && rn <= 11)) | |
3200 | ; /* Comparison, do nothing. */ | |
04595bf6 PM |
3201 | else if (op == 15 && dp && ((rn & 0x1c) == 0x18)) |
3202 | /* VCVT double to int: always integer result. */ | |
b7bcbe95 FB |
3203 | gen_mov_vreg_F0(0, rd); |
3204 | else if (op == 15 && rn == 15) | |
3205 | /* conversion */ | |
3206 | gen_mov_vreg_F0(!dp, rd); | |
3207 | else | |
3208 | gen_mov_vreg_F0(dp, rd); | |
3209 | ||
3210 | /* break out of the loop if we have finished */ | |
3211 | if (veclen == 0) | |
3212 | break; | |
3213 | ||
3214 | if (op == 15 && delta_m == 0) { | |
3215 | /* single source one-many */ | |
3216 | while (veclen--) { | |
3217 | rd = ((rd + delta_d) & (bank_mask - 1)) | |
3218 | | (rd & bank_mask); | |
3219 | gen_mov_vreg_F0(dp, rd); | |
3220 | } | |
3221 | break; | |
3222 | } | |
3223 | /* Setup the next operands. */ | |
3224 | veclen--; | |
3225 | rd = ((rd + delta_d) & (bank_mask - 1)) | |
3226 | | (rd & bank_mask); | |
3227 | ||
3228 | if (op == 15) { | |
3229 | /* One source operand. */ | |
3230 | rm = ((rm + delta_m) & (bank_mask - 1)) | |
3231 | | (rm & bank_mask); | |
3232 | gen_mov_F0_vreg(dp, rm); | |
3233 | } else { | |
3234 | /* Two source operands. */ | |
3235 | rn = ((rn + delta_d) & (bank_mask - 1)) | |
3236 | | (rn & bank_mask); | |
3237 | gen_mov_F0_vreg(dp, rn); | |
3238 | if (delta_m) { | |
3239 | rm = ((rm + delta_m) & (bank_mask - 1)) | |
3240 | | (rm & bank_mask); | |
3241 | gen_mov_F1_vreg(dp, rm); | |
3242 | } | |
3243 | } | |
3244 | } | |
3245 | } | |
3246 | break; | |
3247 | case 0xc: | |
3248 | case 0xd: | |
8387da81 | 3249 | if ((insn & 0x03e00000) == 0x00400000) { |
b7bcbe95 FB |
3250 | /* two-register transfer */ |
3251 | rn = (insn >> 16) & 0xf; | |
3252 | rd = (insn >> 12) & 0xf; | |
3253 | if (dp) { | |
9ee6e8bb PB |
3254 | VFP_DREG_M(rm, insn); |
3255 | } else { | |
3256 | rm = VFP_SREG_M(insn); | |
3257 | } | |
b7bcbe95 | 3258 | |
18c9b560 | 3259 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 FB |
3260 | /* vfp->arm */ |
3261 | if (dp) { | |
4373f3ce PB |
3262 | gen_mov_F0_vreg(0, rm * 2); |
3263 | tmp = gen_vfp_mrs(); | |
3264 | store_reg(s, rd, tmp); | |
3265 | gen_mov_F0_vreg(0, rm * 2 + 1); | |
3266 | tmp = gen_vfp_mrs(); | |
3267 | store_reg(s, rn, tmp); | |
b7bcbe95 FB |
3268 | } else { |
3269 | gen_mov_F0_vreg(0, rm); | |
4373f3ce | 3270 | tmp = gen_vfp_mrs(); |
8387da81 | 3271 | store_reg(s, rd, tmp); |
b7bcbe95 | 3272 | gen_mov_F0_vreg(0, rm + 1); |
4373f3ce | 3273 | tmp = gen_vfp_mrs(); |
8387da81 | 3274 | store_reg(s, rn, tmp); |
b7bcbe95 FB |
3275 | } |
3276 | } else { | |
3277 | /* arm->vfp */ | |
3278 | if (dp) { | |
4373f3ce PB |
3279 | tmp = load_reg(s, rd); |
3280 | gen_vfp_msr(tmp); | |
3281 | gen_mov_vreg_F0(0, rm * 2); | |
3282 | tmp = load_reg(s, rn); | |
3283 | gen_vfp_msr(tmp); | |
3284 | gen_mov_vreg_F0(0, rm * 2 + 1); | |
b7bcbe95 | 3285 | } else { |
8387da81 | 3286 | tmp = load_reg(s, rd); |
4373f3ce | 3287 | gen_vfp_msr(tmp); |
b7bcbe95 | 3288 | gen_mov_vreg_F0(0, rm); |
8387da81 | 3289 | tmp = load_reg(s, rn); |
4373f3ce | 3290 | gen_vfp_msr(tmp); |
b7bcbe95 FB |
3291 | gen_mov_vreg_F0(0, rm + 1); |
3292 | } | |
3293 | } | |
3294 | } else { | |
3295 | /* Load/store */ | |
3296 | rn = (insn >> 16) & 0xf; | |
3297 | if (dp) | |
9ee6e8bb | 3298 | VFP_DREG_D(rd, insn); |
b7bcbe95 | 3299 | else |
9ee6e8bb | 3300 | rd = VFP_SREG_D(insn); |
b7bcbe95 FB |
3301 | if ((insn & 0x01200000) == 0x01000000) { |
3302 | /* Single load/store */ | |
3303 | offset = (insn & 0xff) << 2; | |
3304 | if ((insn & (1 << 23)) == 0) | |
3305 | offset = -offset; | |
934814f1 PM |
3306 | if (s->thumb && rn == 15) { |
3307 | /* This is actually UNPREDICTABLE */ | |
3308 | addr = tcg_temp_new_i32(); | |
3309 | tcg_gen_movi_i32(addr, s->pc & ~2); | |
3310 | } else { | |
3311 | addr = load_reg(s, rn); | |
3312 | } | |
312eea9f | 3313 | tcg_gen_addi_i32(addr, addr, offset); |
b7bcbe95 | 3314 | if (insn & (1 << 20)) { |
312eea9f | 3315 | gen_vfp_ld(s, dp, addr); |
b7bcbe95 FB |
3316 | gen_mov_vreg_F0(dp, rd); |
3317 | } else { | |
3318 | gen_mov_F0_vreg(dp, rd); | |
312eea9f | 3319 | gen_vfp_st(s, dp, addr); |
b7bcbe95 | 3320 | } |
7d1b0095 | 3321 | tcg_temp_free_i32(addr); |
b7bcbe95 FB |
3322 | } else { |
3323 | /* load/store multiple */ | |
934814f1 | 3324 | int w = insn & (1 << 21); |
b7bcbe95 FB |
3325 | if (dp) |
3326 | n = (insn >> 1) & 0x7f; | |
3327 | else | |
3328 | n = insn & 0xff; | |
3329 | ||
934814f1 PM |
3330 | if (w && !(((insn >> 23) ^ (insn >> 24)) & 1)) { |
3331 | /* P == U , W == 1 => UNDEF */ | |
3332 | return 1; | |
3333 | } | |
3334 | if (n == 0 || (rd + n) > 32 || (dp && n > 16)) { | |
3335 | /* UNPREDICTABLE cases for bad immediates: we choose to | |
3336 | * UNDEF to avoid generating huge numbers of TCG ops | |
3337 | */ | |
3338 | return 1; | |
3339 | } | |
3340 | if (rn == 15 && w) { | |
3341 | /* writeback to PC is UNPREDICTABLE, we choose to UNDEF */ | |
3342 | return 1; | |
3343 | } | |
3344 | ||
3345 | if (s->thumb && rn == 15) { | |
3346 | /* This is actually UNPREDICTABLE */ | |
3347 | addr = tcg_temp_new_i32(); | |
3348 | tcg_gen_movi_i32(addr, s->pc & ~2); | |
3349 | } else { | |
3350 | addr = load_reg(s, rn); | |
3351 | } | |
b7bcbe95 | 3352 | if (insn & (1 << 24)) /* pre-decrement */ |
312eea9f | 3353 | tcg_gen_addi_i32(addr, addr, -((insn & 0xff) << 2)); |
b7bcbe95 FB |
3354 | |
3355 | if (dp) | |
3356 | offset = 8; | |
3357 | else | |
3358 | offset = 4; | |
3359 | for (i = 0; i < n; i++) { | |
18c9b560 | 3360 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 | 3361 | /* load */ |
312eea9f | 3362 | gen_vfp_ld(s, dp, addr); |
b7bcbe95 FB |
3363 | gen_mov_vreg_F0(dp, rd + i); |
3364 | } else { | |
3365 | /* store */ | |
3366 | gen_mov_F0_vreg(dp, rd + i); | |
312eea9f | 3367 | gen_vfp_st(s, dp, addr); |
b7bcbe95 | 3368 | } |
312eea9f | 3369 | tcg_gen_addi_i32(addr, addr, offset); |
b7bcbe95 | 3370 | } |
934814f1 | 3371 | if (w) { |
b7bcbe95 FB |
3372 | /* writeback */ |
3373 | if (insn & (1 << 24)) | |
3374 | offset = -offset * n; | |
3375 | else if (dp && (insn & 1)) | |
3376 | offset = 4; | |
3377 | else | |
3378 | offset = 0; | |
3379 | ||
3380 | if (offset != 0) | |
312eea9f FN |
3381 | tcg_gen_addi_i32(addr, addr, offset); |
3382 | store_reg(s, rn, addr); | |
3383 | } else { | |
7d1b0095 | 3384 | tcg_temp_free_i32(addr); |
b7bcbe95 FB |
3385 | } |
3386 | } | |
3387 | } | |
3388 | break; | |
3389 | default: | |
3390 | /* Should never happen. */ | |
3391 | return 1; | |
3392 | } | |
3393 | return 0; | |
3394 | } | |
3395 | ||
6e256c93 | 3396 | static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest) |
c53be334 | 3397 | { |
6e256c93 FB |
3398 | TranslationBlock *tb; |
3399 | ||
3400 | tb = s->tb; | |
3401 | if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) { | |
57fec1fe | 3402 | tcg_gen_goto_tb(n); |
8984bd2e | 3403 | gen_set_pc_im(dest); |
4b4a72e5 | 3404 | tcg_gen_exit_tb((tcg_target_long)tb + n); |
6e256c93 | 3405 | } else { |
8984bd2e | 3406 | gen_set_pc_im(dest); |
57fec1fe | 3407 | tcg_gen_exit_tb(0); |
6e256c93 | 3408 | } |
c53be334 FB |
3409 | } |
3410 | ||
8aaca4c0 FB |
3411 | static inline void gen_jmp (DisasContext *s, uint32_t dest) |
3412 | { | |
551bd27f | 3413 | if (unlikely(s->singlestep_enabled)) { |
8aaca4c0 | 3414 | /* An indirect jump so that we still trigger the debug exception. */ |
5899f386 | 3415 | if (s->thumb) |
d9ba4830 PB |
3416 | dest |= 1; |
3417 | gen_bx_im(s, dest); | |
8aaca4c0 | 3418 | } else { |
6e256c93 | 3419 | gen_goto_tb(s, 0, dest); |
8aaca4c0 FB |
3420 | s->is_jmp = DISAS_TB_JUMP; |
3421 | } | |
3422 | } | |
3423 | ||
39d5492a | 3424 | static inline void gen_mulxy(TCGv_i32 t0, TCGv_i32 t1, int x, int y) |
b5ff1b31 | 3425 | { |
ee097184 | 3426 | if (x) |
d9ba4830 | 3427 | tcg_gen_sari_i32(t0, t0, 16); |
b5ff1b31 | 3428 | else |
d9ba4830 | 3429 | gen_sxth(t0); |
ee097184 | 3430 | if (y) |
d9ba4830 | 3431 | tcg_gen_sari_i32(t1, t1, 16); |
b5ff1b31 | 3432 | else |
d9ba4830 PB |
3433 | gen_sxth(t1); |
3434 | tcg_gen_mul_i32(t0, t0, t1); | |
b5ff1b31 FB |
3435 | } |
3436 | ||
3437 | /* Return the mask of PSR bits set by a MSR instruction. */ | |
0ecb72a5 | 3438 | static uint32_t msr_mask(CPUARMState *env, DisasContext *s, int flags, int spsr) { |
b5ff1b31 FB |
3439 | uint32_t mask; |
3440 | ||
3441 | mask = 0; | |
3442 | if (flags & (1 << 0)) | |
3443 | mask |= 0xff; | |
3444 | if (flags & (1 << 1)) | |
3445 | mask |= 0xff00; | |
3446 | if (flags & (1 << 2)) | |
3447 | mask |= 0xff0000; | |
3448 | if (flags & (1 << 3)) | |
3449 | mask |= 0xff000000; | |
9ee6e8bb | 3450 | |
2ae23e75 | 3451 | /* Mask out undefined bits. */ |
9ee6e8bb | 3452 | mask &= ~CPSR_RESERVED; |
be5e7a76 DES |
3453 | if (!arm_feature(env, ARM_FEATURE_V4T)) |
3454 | mask &= ~CPSR_T; | |
3455 | if (!arm_feature(env, ARM_FEATURE_V5)) | |
3456 | mask &= ~CPSR_Q; /* V5TE in reality*/ | |
9ee6e8bb | 3457 | if (!arm_feature(env, ARM_FEATURE_V6)) |
e160c51c | 3458 | mask &= ~(CPSR_E | CPSR_GE); |
9ee6e8bb | 3459 | if (!arm_feature(env, ARM_FEATURE_THUMB2)) |
e160c51c | 3460 | mask &= ~CPSR_IT; |
9ee6e8bb | 3461 | /* Mask out execution state bits. */ |
2ae23e75 | 3462 | if (!spsr) |
e160c51c | 3463 | mask &= ~CPSR_EXEC; |
b5ff1b31 FB |
3464 | /* Mask out privileged bits. */ |
3465 | if (IS_USER(s)) | |
9ee6e8bb | 3466 | mask &= CPSR_USER; |
b5ff1b31 FB |
3467 | return mask; |
3468 | } | |
3469 | ||
2fbac54b | 3470 | /* Returns nonzero if access to the PSR is not permitted. Marks t0 as dead. */ |
39d5492a | 3471 | static int gen_set_psr(DisasContext *s, uint32_t mask, int spsr, TCGv_i32 t0) |
b5ff1b31 | 3472 | { |
39d5492a | 3473 | TCGv_i32 tmp; |
b5ff1b31 FB |
3474 | if (spsr) { |
3475 | /* ??? This is also undefined in system mode. */ | |
3476 | if (IS_USER(s)) | |
3477 | return 1; | |
d9ba4830 PB |
3478 | |
3479 | tmp = load_cpu_field(spsr); | |
3480 | tcg_gen_andi_i32(tmp, tmp, ~mask); | |
2fbac54b FN |
3481 | tcg_gen_andi_i32(t0, t0, mask); |
3482 | tcg_gen_or_i32(tmp, tmp, t0); | |
d9ba4830 | 3483 | store_cpu_field(tmp, spsr); |
b5ff1b31 | 3484 | } else { |
2fbac54b | 3485 | gen_set_cpsr(t0, mask); |
b5ff1b31 | 3486 | } |
7d1b0095 | 3487 | tcg_temp_free_i32(t0); |
b5ff1b31 FB |
3488 | gen_lookup_tb(s); |
3489 | return 0; | |
3490 | } | |
3491 | ||
2fbac54b FN |
3492 | /* Returns nonzero if access to the PSR is not permitted. */ |
3493 | static int gen_set_psr_im(DisasContext *s, uint32_t mask, int spsr, uint32_t val) | |
3494 | { | |
39d5492a | 3495 | TCGv_i32 tmp; |
7d1b0095 | 3496 | tmp = tcg_temp_new_i32(); |
2fbac54b FN |
3497 | tcg_gen_movi_i32(tmp, val); |
3498 | return gen_set_psr(s, mask, spsr, tmp); | |
3499 | } | |
3500 | ||
e9bb4aa9 | 3501 | /* Generate an old-style exception return. Marks pc as dead. */ |
39d5492a | 3502 | static void gen_exception_return(DisasContext *s, TCGv_i32 pc) |
b5ff1b31 | 3503 | { |
39d5492a | 3504 | TCGv_i32 tmp; |
e9bb4aa9 | 3505 | store_reg(s, 15, pc); |
d9ba4830 PB |
3506 | tmp = load_cpu_field(spsr); |
3507 | gen_set_cpsr(tmp, 0xffffffff); | |
7d1b0095 | 3508 | tcg_temp_free_i32(tmp); |
b5ff1b31 FB |
3509 | s->is_jmp = DISAS_UPDATE; |
3510 | } | |
3511 | ||
b0109805 | 3512 | /* Generate a v6 exception return. Marks both values as dead. */ |
39d5492a | 3513 | static void gen_rfe(DisasContext *s, TCGv_i32 pc, TCGv_i32 cpsr) |
2c0262af | 3514 | { |
b0109805 | 3515 | gen_set_cpsr(cpsr, 0xffffffff); |
7d1b0095 | 3516 | tcg_temp_free_i32(cpsr); |
b0109805 | 3517 | store_reg(s, 15, pc); |
9ee6e8bb PB |
3518 | s->is_jmp = DISAS_UPDATE; |
3519 | } | |
3b46e624 | 3520 | |
9ee6e8bb PB |
3521 | static inline void |
3522 | gen_set_condexec (DisasContext *s) | |
3523 | { | |
3524 | if (s->condexec_mask) { | |
8f01245e | 3525 | uint32_t val = (s->condexec_cond << 4) | (s->condexec_mask >> 1); |
39d5492a | 3526 | TCGv_i32 tmp = tcg_temp_new_i32(); |
8f01245e | 3527 | tcg_gen_movi_i32(tmp, val); |
d9ba4830 | 3528 | store_cpu_field(tmp, condexec_bits); |
9ee6e8bb PB |
3529 | } |
3530 | } | |
3b46e624 | 3531 | |
bc4a0de0 PM |
3532 | static void gen_exception_insn(DisasContext *s, int offset, int excp) |
3533 | { | |
3534 | gen_set_condexec(s); | |
3535 | gen_set_pc_im(s->pc - offset); | |
3536 | gen_exception(excp); | |
3537 | s->is_jmp = DISAS_JUMP; | |
3538 | } | |
3539 | ||
9ee6e8bb PB |
3540 | static void gen_nop_hint(DisasContext *s, int val) |
3541 | { | |
3542 | switch (val) { | |
3543 | case 3: /* wfi */ | |
8984bd2e | 3544 | gen_set_pc_im(s->pc); |
9ee6e8bb PB |
3545 | s->is_jmp = DISAS_WFI; |
3546 | break; | |
3547 | case 2: /* wfe */ | |
3548 | case 4: /* sev */ | |
3549 | /* TODO: Implement SEV and WFE. May help SMP performance. */ | |
3550 | default: /* nop */ | |
3551 | break; | |
3552 | } | |
3553 | } | |
99c475ab | 3554 | |
ad69471c | 3555 | #define CPU_V001 cpu_V0, cpu_V0, cpu_V1 |
9ee6e8bb | 3556 | |
39d5492a | 3557 | static inline void gen_neon_add(int size, TCGv_i32 t0, TCGv_i32 t1) |
9ee6e8bb PB |
3558 | { |
3559 | switch (size) { | |
dd8fbd78 FN |
3560 | case 0: gen_helper_neon_add_u8(t0, t0, t1); break; |
3561 | case 1: gen_helper_neon_add_u16(t0, t0, t1); break; | |
3562 | case 2: tcg_gen_add_i32(t0, t0, t1); break; | |
62698be3 | 3563 | default: abort(); |
9ee6e8bb | 3564 | } |
9ee6e8bb PB |
3565 | } |
3566 | ||
39d5492a | 3567 | static inline void gen_neon_rsb(int size, TCGv_i32 t0, TCGv_i32 t1) |
ad69471c PB |
3568 | { |
3569 | switch (size) { | |
dd8fbd78 FN |
3570 | case 0: gen_helper_neon_sub_u8(t0, t1, t0); break; |
3571 | case 1: gen_helper_neon_sub_u16(t0, t1, t0); break; | |
3572 | case 2: tcg_gen_sub_i32(t0, t1, t0); break; | |
ad69471c PB |
3573 | default: return; |
3574 | } | |
3575 | } | |
3576 | ||
3577 | /* 32-bit pairwise ops end up the same as the elementwise versions. */ | |
3578 | #define gen_helper_neon_pmax_s32 gen_helper_neon_max_s32 | |
3579 | #define gen_helper_neon_pmax_u32 gen_helper_neon_max_u32 | |
3580 | #define gen_helper_neon_pmin_s32 gen_helper_neon_min_s32 | |
3581 | #define gen_helper_neon_pmin_u32 gen_helper_neon_min_u32 | |
3582 | ||
ad69471c PB |
3583 | #define GEN_NEON_INTEGER_OP_ENV(name) do { \ |
3584 | switch ((size << 1) | u) { \ | |
3585 | case 0: \ | |
dd8fbd78 | 3586 | gen_helper_neon_##name##_s8(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3587 | break; \ |
3588 | case 1: \ | |
dd8fbd78 | 3589 | gen_helper_neon_##name##_u8(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3590 | break; \ |
3591 | case 2: \ | |
dd8fbd78 | 3592 | gen_helper_neon_##name##_s16(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3593 | break; \ |
3594 | case 3: \ | |
dd8fbd78 | 3595 | gen_helper_neon_##name##_u16(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3596 | break; \ |
3597 | case 4: \ | |
dd8fbd78 | 3598 | gen_helper_neon_##name##_s32(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3599 | break; \ |
3600 | case 5: \ | |
dd8fbd78 | 3601 | gen_helper_neon_##name##_u32(tmp, cpu_env, tmp, tmp2); \ |
ad69471c PB |
3602 | break; \ |
3603 | default: return 1; \ | |
3604 | }} while (0) | |
9ee6e8bb PB |
3605 | |
3606 | #define GEN_NEON_INTEGER_OP(name) do { \ | |
3607 | switch ((size << 1) | u) { \ | |
ad69471c | 3608 | case 0: \ |
dd8fbd78 | 3609 | gen_helper_neon_##name##_s8(tmp, tmp, tmp2); \ |
ad69471c PB |
3610 | break; \ |
3611 | case 1: \ | |
dd8fbd78 | 3612 | gen_helper_neon_##name##_u8(tmp, tmp, tmp2); \ |
ad69471c PB |
3613 | break; \ |
3614 | case 2: \ | |
dd8fbd78 | 3615 | gen_helper_neon_##name##_s16(tmp, tmp, tmp2); \ |
ad69471c PB |
3616 | break; \ |
3617 | case 3: \ | |
dd8fbd78 | 3618 | gen_helper_neon_##name##_u16(tmp, tmp, tmp2); \ |
ad69471c PB |
3619 | break; \ |
3620 | case 4: \ | |
dd8fbd78 | 3621 | gen_helper_neon_##name##_s32(tmp, tmp, tmp2); \ |
ad69471c PB |
3622 | break; \ |
3623 | case 5: \ | |
dd8fbd78 | 3624 | gen_helper_neon_##name##_u32(tmp, tmp, tmp2); \ |
ad69471c | 3625 | break; \ |
9ee6e8bb PB |
3626 | default: return 1; \ |
3627 | }} while (0) | |
3628 | ||
39d5492a | 3629 | static TCGv_i32 neon_load_scratch(int scratch) |
9ee6e8bb | 3630 | { |
39d5492a | 3631 | TCGv_i32 tmp = tcg_temp_new_i32(); |
dd8fbd78 FN |
3632 | tcg_gen_ld_i32(tmp, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
3633 | return tmp; | |
9ee6e8bb PB |
3634 | } |
3635 | ||
39d5492a | 3636 | static void neon_store_scratch(int scratch, TCGv_i32 var) |
9ee6e8bb | 3637 | { |
dd8fbd78 | 3638 | tcg_gen_st_i32(var, cpu_env, offsetof(CPUARMState, vfp.scratch[scratch])); |
7d1b0095 | 3639 | tcg_temp_free_i32(var); |
9ee6e8bb PB |
3640 | } |
3641 | ||
39d5492a | 3642 | static inline TCGv_i32 neon_get_scalar(int size, int reg) |
9ee6e8bb | 3643 | { |
39d5492a | 3644 | TCGv_i32 tmp; |
9ee6e8bb | 3645 | if (size == 1) { |
0fad6efc PM |
3646 | tmp = neon_load_reg(reg & 7, reg >> 4); |
3647 | if (reg & 8) { | |
dd8fbd78 | 3648 | gen_neon_dup_high16(tmp); |
0fad6efc PM |
3649 | } else { |
3650 | gen_neon_dup_low16(tmp); | |
dd8fbd78 | 3651 | } |
0fad6efc PM |
3652 | } else { |
3653 | tmp = neon_load_reg(reg & 15, reg >> 4); | |
9ee6e8bb | 3654 | } |
dd8fbd78 | 3655 | return tmp; |
9ee6e8bb PB |
3656 | } |
3657 | ||
02acedf9 | 3658 | static int gen_neon_unzip(int rd, int rm, int size, int q) |
19457615 | 3659 | { |
39d5492a | 3660 | TCGv_i32 tmp, tmp2; |
600b828c | 3661 | if (!q && size == 2) { |
02acedf9 PM |
3662 | return 1; |
3663 | } | |
3664 | tmp = tcg_const_i32(rd); | |
3665 | tmp2 = tcg_const_i32(rm); | |
3666 | if (q) { | |
3667 | switch (size) { | |
3668 | case 0: | |
02da0b2d | 3669 | gen_helper_neon_qunzip8(cpu_env, tmp, tmp2); |
02acedf9 PM |
3670 | break; |
3671 | case 1: | |
02da0b2d | 3672 | gen_helper_neon_qunzip16(cpu_env, tmp, tmp2); |
02acedf9 PM |
3673 | break; |
3674 | case 2: | |
02da0b2d | 3675 | gen_helper_neon_qunzip32(cpu_env, tmp, tmp2); |
02acedf9 PM |
3676 | break; |
3677 | default: | |
3678 | abort(); | |
3679 | } | |
3680 | } else { | |
3681 | switch (size) { | |
3682 | case 0: | |
02da0b2d | 3683 | gen_helper_neon_unzip8(cpu_env, tmp, tmp2); |
02acedf9 PM |
3684 | break; |
3685 | case 1: | |
02da0b2d | 3686 | gen_helper_neon_unzip16(cpu_env, tmp, tmp2); |
02acedf9 PM |
3687 | break; |
3688 | default: | |
3689 | abort(); | |
3690 | } | |
3691 | } | |
3692 | tcg_temp_free_i32(tmp); | |
3693 | tcg_temp_free_i32(tmp2); | |
3694 | return 0; | |
19457615 FN |
3695 | } |
3696 | ||
d68a6f3a | 3697 | static int gen_neon_zip(int rd, int rm, int size, int q) |
19457615 | 3698 | { |
39d5492a | 3699 | TCGv_i32 tmp, tmp2; |
600b828c | 3700 | if (!q && size == 2) { |
d68a6f3a PM |
3701 | return 1; |
3702 | } | |
3703 | tmp = tcg_const_i32(rd); | |
3704 | tmp2 = tcg_const_i32(rm); | |
3705 | if (q) { | |
3706 | switch (size) { | |
3707 | case 0: | |
02da0b2d | 3708 | gen_helper_neon_qzip8(cpu_env, tmp, tmp2); |
d68a6f3a PM |
3709 | break; |
3710 | case 1: | |
02da0b2d | 3711 | gen_helper_neon_qzip16(cpu_env, tmp, tmp2); |
d68a6f3a PM |
3712 | break; |
3713 | case 2: | |
02da0b2d | 3714 | gen_helper_neon_qzip32(cpu_env, tmp, tmp2); |
d68a6f3a PM |
3715 | break; |
3716 | default: | |
3717 | abort(); | |
3718 | } | |
3719 | } else { | |
3720 | switch (size) { | |
3721 | case 0: | |
02da0b2d | 3722 | gen_helper_neon_zip8(cpu_env, tmp, tmp2); |
d68a6f3a PM |
3723 | break; |
3724 | case 1: | |
02da0b2d | 3725 | gen_helper_neon_zip16(cpu_env, tmp, tmp2); |
d68a6f3a PM |
3726 | break; |
3727 | default: | |
3728 | abort(); | |
3729 | } | |
3730 | } | |
3731 | tcg_temp_free_i32(tmp); | |
3732 | tcg_temp_free_i32(tmp2); | |
3733 | return 0; | |
19457615 FN |
3734 | } |
3735 | ||
39d5492a | 3736 | static void gen_neon_trn_u8(TCGv_i32 t0, TCGv_i32 t1) |
19457615 | 3737 | { |
39d5492a | 3738 | TCGv_i32 rd, tmp; |
19457615 | 3739 | |
7d1b0095 PM |
3740 | rd = tcg_temp_new_i32(); |
3741 | tmp = tcg_temp_new_i32(); | |
19457615 FN |
3742 | |
3743 | tcg_gen_shli_i32(rd, t0, 8); | |
3744 | tcg_gen_andi_i32(rd, rd, 0xff00ff00); | |
3745 | tcg_gen_andi_i32(tmp, t1, 0x00ff00ff); | |
3746 | tcg_gen_or_i32(rd, rd, tmp); | |
3747 | ||
3748 | tcg_gen_shri_i32(t1, t1, 8); | |
3749 | tcg_gen_andi_i32(t1, t1, 0x00ff00ff); | |
3750 | tcg_gen_andi_i32(tmp, t0, 0xff00ff00); | |
3751 | tcg_gen_or_i32(t1, t1, tmp); | |
3752 | tcg_gen_mov_i32(t0, rd); | |
3753 | ||
7d1b0095 PM |
3754 | tcg_temp_free_i32(tmp); |
3755 | tcg_temp_free_i32(rd); | |
19457615 FN |
3756 | } |
3757 | ||
39d5492a | 3758 | static void gen_neon_trn_u16(TCGv_i32 t0, TCGv_i32 t1) |
19457615 | 3759 | { |
39d5492a | 3760 | TCGv_i32 rd, tmp; |
19457615 | 3761 | |
7d1b0095 PM |
3762 | rd = tcg_temp_new_i32(); |
3763 | tmp = tcg_temp_new_i32(); | |
19457615 FN |
3764 | |
3765 | tcg_gen_shli_i32(rd, t0, 16); | |
3766 | tcg_gen_andi_i32(tmp, t1, 0xffff); | |
3767 | tcg_gen_or_i32(rd, rd, tmp); | |
3768 | tcg_gen_shri_i32(t1, t1, 16); | |
3769 | tcg_gen_andi_i32(tmp, t0, 0xffff0000); | |
3770 | tcg_gen_or_i32(t1, t1, tmp); | |
3771 | tcg_gen_mov_i32(t0, rd); | |
3772 | ||
7d1b0095 PM |
3773 | tcg_temp_free_i32(tmp); |
3774 | tcg_temp_free_i32(rd); | |
19457615 FN |
3775 | } |
3776 | ||
3777 | ||
9ee6e8bb PB |
3778 | static struct { |
3779 | int nregs; | |
3780 | int interleave; | |
3781 | int spacing; | |
3782 | } neon_ls_element_type[11] = { | |
3783 | {4, 4, 1}, | |
3784 | {4, 4, 2}, | |
3785 | {4, 1, 1}, | |
3786 | {4, 2, 1}, | |
3787 | {3, 3, 1}, | |
3788 | {3, 3, 2}, | |
3789 | {3, 1, 1}, | |
3790 | {1, 1, 1}, | |
3791 | {2, 2, 1}, | |
3792 | {2, 2, 2}, | |
3793 | {2, 1, 1} | |
3794 | }; | |
3795 | ||
3796 | /* Translate a NEON load/store element instruction. Return nonzero if the | |
3797 | instruction is invalid. */ | |
0ecb72a5 | 3798 | static int disas_neon_ls_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
9ee6e8bb PB |
3799 | { |
3800 | int rd, rn, rm; | |
3801 | int op; | |
3802 | int nregs; | |
3803 | int interleave; | |
84496233 | 3804 | int spacing; |
9ee6e8bb PB |
3805 | int stride; |
3806 | int size; | |
3807 | int reg; | |
3808 | int pass; | |
3809 | int load; | |
3810 | int shift; | |
9ee6e8bb | 3811 | int n; |
39d5492a PM |
3812 | TCGv_i32 addr; |
3813 | TCGv_i32 tmp; | |
3814 | TCGv_i32 tmp2; | |
84496233 | 3815 | TCGv_i64 tmp64; |
9ee6e8bb | 3816 | |
5df8bac1 | 3817 | if (!s->vfp_enabled) |
9ee6e8bb PB |
3818 | return 1; |
3819 | VFP_DREG_D(rd, insn); | |
3820 | rn = (insn >> 16) & 0xf; | |
3821 | rm = insn & 0xf; | |
3822 | load = (insn & (1 << 21)) != 0; | |
3823 | if ((insn & (1 << 23)) == 0) { | |
3824 | /* Load store all elements. */ | |
3825 | op = (insn >> 8) & 0xf; | |
3826 | size = (insn >> 6) & 3; | |
84496233 | 3827 | if (op > 10) |
9ee6e8bb | 3828 | return 1; |
f2dd89d0 PM |
3829 | /* Catch UNDEF cases for bad values of align field */ |
3830 | switch (op & 0xc) { | |
3831 | case 4: | |
3832 | if (((insn >> 5) & 1) == 1) { | |
3833 | return 1; | |
3834 | } | |
3835 | break; | |
3836 | case 8: | |
3837 | if (((insn >> 4) & 3) == 3) { | |
3838 | return 1; | |
3839 | } | |
3840 | break; | |
3841 | default: | |
3842 | break; | |
3843 | } | |
9ee6e8bb PB |
3844 | nregs = neon_ls_element_type[op].nregs; |
3845 | interleave = neon_ls_element_type[op].interleave; | |
84496233 JR |
3846 | spacing = neon_ls_element_type[op].spacing; |
3847 | if (size == 3 && (interleave | spacing) != 1) | |
3848 | return 1; | |
e318a60b | 3849 | addr = tcg_temp_new_i32(); |
dcc65026 | 3850 | load_reg_var(s, addr, rn); |
9ee6e8bb PB |
3851 | stride = (1 << size) * interleave; |
3852 | for (reg = 0; reg < nregs; reg++) { | |
3853 | if (interleave > 2 || (interleave == 2 && nregs == 2)) { | |
dcc65026 AJ |
3854 | load_reg_var(s, addr, rn); |
3855 | tcg_gen_addi_i32(addr, addr, (1 << size) * reg); | |
9ee6e8bb | 3856 | } else if (interleave == 2 && nregs == 4 && reg == 2) { |
dcc65026 AJ |
3857 | load_reg_var(s, addr, rn); |
3858 | tcg_gen_addi_i32(addr, addr, 1 << size); | |
9ee6e8bb | 3859 | } |
84496233 | 3860 | if (size == 3) { |
8ed1237d | 3861 | tmp64 = tcg_temp_new_i64(); |
84496233 | 3862 | if (load) { |
8ed1237d | 3863 | tcg_gen_qemu_ld64(tmp64, addr, IS_USER(s)); |
84496233 | 3864 | neon_store_reg64(tmp64, rd); |
84496233 | 3865 | } else { |
84496233 | 3866 | neon_load_reg64(tmp64, rd); |
8ed1237d | 3867 | tcg_gen_qemu_st64(tmp64, addr, IS_USER(s)); |
84496233 | 3868 | } |
8ed1237d | 3869 | tcg_temp_free_i64(tmp64); |
84496233 JR |
3870 | tcg_gen_addi_i32(addr, addr, stride); |
3871 | } else { | |
3872 | for (pass = 0; pass < 2; pass++) { | |
3873 | if (size == 2) { | |
3874 | if (load) { | |
58ab8e96 PM |
3875 | tmp = tcg_temp_new_i32(); |
3876 | tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); | |
84496233 JR |
3877 | neon_store_reg(rd, pass, tmp); |
3878 | } else { | |
3879 | tmp = neon_load_reg(rd, pass); | |
58ab8e96 PM |
3880 | tcg_gen_qemu_st32(tmp, addr, IS_USER(s)); |
3881 | tcg_temp_free_i32(tmp); | |
84496233 | 3882 | } |
1b2b1e54 | 3883 | tcg_gen_addi_i32(addr, addr, stride); |
84496233 JR |
3884 | } else if (size == 1) { |
3885 | if (load) { | |
58ab8e96 PM |
3886 | tmp = tcg_temp_new_i32(); |
3887 | tcg_gen_qemu_ld16u(tmp, addr, IS_USER(s)); | |
84496233 | 3888 | tcg_gen_addi_i32(addr, addr, stride); |
58ab8e96 PM |
3889 | tmp2 = tcg_temp_new_i32(); |
3890 | tcg_gen_qemu_ld16u(tmp2, addr, IS_USER(s)); | |
84496233 | 3891 | tcg_gen_addi_i32(addr, addr, stride); |
41ba8341 PB |
3892 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
3893 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
7d1b0095 | 3894 | tcg_temp_free_i32(tmp2); |
84496233 JR |
3895 | neon_store_reg(rd, pass, tmp); |
3896 | } else { | |
3897 | tmp = neon_load_reg(rd, pass); | |
7d1b0095 | 3898 | tmp2 = tcg_temp_new_i32(); |
84496233 | 3899 | tcg_gen_shri_i32(tmp2, tmp, 16); |
58ab8e96 PM |
3900 | tcg_gen_qemu_st16(tmp, addr, IS_USER(s)); |
3901 | tcg_temp_free_i32(tmp); | |
84496233 | 3902 | tcg_gen_addi_i32(addr, addr, stride); |
58ab8e96 PM |
3903 | tcg_gen_qemu_st16(tmp2, addr, IS_USER(s)); |
3904 | tcg_temp_free_i32(tmp2); | |
1b2b1e54 | 3905 | tcg_gen_addi_i32(addr, addr, stride); |
9ee6e8bb | 3906 | } |
84496233 JR |
3907 | } else /* size == 0 */ { |
3908 | if (load) { | |
39d5492a | 3909 | TCGV_UNUSED_I32(tmp2); |
84496233 | 3910 | for (n = 0; n < 4; n++) { |
58ab8e96 PM |
3911 | tmp = tcg_temp_new_i32(); |
3912 | tcg_gen_qemu_ld8u(tmp, addr, IS_USER(s)); | |
84496233 JR |
3913 | tcg_gen_addi_i32(addr, addr, stride); |
3914 | if (n == 0) { | |
3915 | tmp2 = tmp; | |
3916 | } else { | |
41ba8341 PB |
3917 | tcg_gen_shli_i32(tmp, tmp, n * 8); |
3918 | tcg_gen_or_i32(tmp2, tmp2, tmp); | |
7d1b0095 | 3919 | tcg_temp_free_i32(tmp); |
84496233 | 3920 | } |
9ee6e8bb | 3921 | } |
84496233 JR |
3922 | neon_store_reg(rd, pass, tmp2); |
3923 | } else { | |
3924 | tmp2 = neon_load_reg(rd, pass); | |
3925 | for (n = 0; n < 4; n++) { | |
7d1b0095 | 3926 | tmp = tcg_temp_new_i32(); |
84496233 JR |
3927 | if (n == 0) { |
3928 | tcg_gen_mov_i32(tmp, tmp2); | |
3929 | } else { | |
3930 | tcg_gen_shri_i32(tmp, tmp2, n * 8); | |
3931 | } | |
58ab8e96 PM |
3932 | tcg_gen_qemu_st8(tmp, addr, IS_USER(s)); |
3933 | tcg_temp_free_i32(tmp); | |
84496233 JR |
3934 | tcg_gen_addi_i32(addr, addr, stride); |
3935 | } | |
7d1b0095 | 3936 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
3937 | } |
3938 | } | |
3939 | } | |
3940 | } | |
84496233 | 3941 | rd += spacing; |
9ee6e8bb | 3942 | } |
e318a60b | 3943 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
3944 | stride = nregs * 8; |
3945 | } else { | |
3946 | size = (insn >> 10) & 3; | |
3947 | if (size == 3) { | |
3948 | /* Load single element to all lanes. */ | |
8e18cde3 PM |
3949 | int a = (insn >> 4) & 1; |
3950 | if (!load) { | |
9ee6e8bb | 3951 | return 1; |
8e18cde3 | 3952 | } |
9ee6e8bb PB |
3953 | size = (insn >> 6) & 3; |
3954 | nregs = ((insn >> 8) & 3) + 1; | |
8e18cde3 PM |
3955 | |
3956 | if (size == 3) { | |
3957 | if (nregs != 4 || a == 0) { | |
9ee6e8bb | 3958 | return 1; |
99c475ab | 3959 | } |
8e18cde3 PM |
3960 | /* For VLD4 size==3 a == 1 means 32 bits at 16 byte alignment */ |
3961 | size = 2; | |
3962 | } | |
3963 | if (nregs == 1 && a == 1 && size == 0) { | |
3964 | return 1; | |
3965 | } | |
3966 | if (nregs == 3 && a == 1) { | |
3967 | return 1; | |
3968 | } | |
e318a60b | 3969 | addr = tcg_temp_new_i32(); |
8e18cde3 PM |
3970 | load_reg_var(s, addr, rn); |
3971 | if (nregs == 1) { | |
3972 | /* VLD1 to all lanes: bit 5 indicates how many Dregs to write */ | |
3973 | tmp = gen_load_and_replicate(s, addr, size); | |
3974 | tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 0)); | |
3975 | tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 1)); | |
3976 | if (insn & (1 << 5)) { | |
3977 | tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd + 1, 0)); | |
3978 | tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd + 1, 1)); | |
3979 | } | |
3980 | tcg_temp_free_i32(tmp); | |
3981 | } else { | |
3982 | /* VLD2/3/4 to all lanes: bit 5 indicates register stride */ | |
3983 | stride = (insn & (1 << 5)) ? 2 : 1; | |
3984 | for (reg = 0; reg < nregs; reg++) { | |
3985 | tmp = gen_load_and_replicate(s, addr, size); | |
3986 | tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 0)); | |
3987 | tcg_gen_st_i32(tmp, cpu_env, neon_reg_offset(rd, 1)); | |
3988 | tcg_temp_free_i32(tmp); | |
3989 | tcg_gen_addi_i32(addr, addr, 1 << size); | |
3990 | rd += stride; | |
3991 | } | |
9ee6e8bb | 3992 | } |
e318a60b | 3993 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
3994 | stride = (1 << size) * nregs; |
3995 | } else { | |
3996 | /* Single element. */ | |
93262b16 | 3997 | int idx = (insn >> 4) & 0xf; |
9ee6e8bb PB |
3998 | pass = (insn >> 7) & 1; |
3999 | switch (size) { | |
4000 | case 0: | |
4001 | shift = ((insn >> 5) & 3) * 8; | |
9ee6e8bb PB |
4002 | stride = 1; |
4003 | break; | |
4004 | case 1: | |
4005 | shift = ((insn >> 6) & 1) * 16; | |
9ee6e8bb PB |
4006 | stride = (insn & (1 << 5)) ? 2 : 1; |
4007 | break; | |
4008 | case 2: | |
4009 | shift = 0; | |
9ee6e8bb PB |
4010 | stride = (insn & (1 << 6)) ? 2 : 1; |
4011 | break; | |
4012 | default: | |
4013 | abort(); | |
4014 | } | |
4015 | nregs = ((insn >> 8) & 3) + 1; | |
93262b16 PM |
4016 | /* Catch the UNDEF cases. This is unavoidably a bit messy. */ |
4017 | switch (nregs) { | |
4018 | case 1: | |
4019 | if (((idx & (1 << size)) != 0) || | |
4020 | (size == 2 && ((idx & 3) == 1 || (idx & 3) == 2))) { | |
4021 | return 1; | |
4022 | } | |
4023 | break; | |
4024 | case 3: | |
4025 | if ((idx & 1) != 0) { | |
4026 | return 1; | |
4027 | } | |
4028 | /* fall through */ | |
4029 | case 2: | |
4030 | if (size == 2 && (idx & 2) != 0) { | |
4031 | return 1; | |
4032 | } | |
4033 | break; | |
4034 | case 4: | |
4035 | if ((size == 2) && ((idx & 3) == 3)) { | |
4036 | return 1; | |
4037 | } | |
4038 | break; | |
4039 | default: | |
4040 | abort(); | |
4041 | } | |
4042 | if ((rd + stride * (nregs - 1)) > 31) { | |
4043 | /* Attempts to write off the end of the register file | |
4044 | * are UNPREDICTABLE; we choose to UNDEF because otherwise | |
4045 | * the neon_load_reg() would write off the end of the array. | |
4046 | */ | |
4047 | return 1; | |
4048 | } | |
e318a60b | 4049 | addr = tcg_temp_new_i32(); |
dcc65026 | 4050 | load_reg_var(s, addr, rn); |
9ee6e8bb PB |
4051 | for (reg = 0; reg < nregs; reg++) { |
4052 | if (load) { | |
58ab8e96 | 4053 | tmp = tcg_temp_new_i32(); |
9ee6e8bb PB |
4054 | switch (size) { |
4055 | case 0: | |
58ab8e96 | 4056 | tcg_gen_qemu_ld8u(tmp, addr, IS_USER(s)); |
9ee6e8bb PB |
4057 | break; |
4058 | case 1: | |
58ab8e96 | 4059 | tcg_gen_qemu_ld16u(tmp, addr, IS_USER(s)); |
9ee6e8bb PB |
4060 | break; |
4061 | case 2: | |
58ab8e96 | 4062 | tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); |
9ee6e8bb | 4063 | break; |
a50f5b91 PB |
4064 | default: /* Avoid compiler warnings. */ |
4065 | abort(); | |
9ee6e8bb PB |
4066 | } |
4067 | if (size != 2) { | |
8f8e3aa4 | 4068 | tmp2 = neon_load_reg(rd, pass); |
d593c48e AJ |
4069 | tcg_gen_deposit_i32(tmp, tmp2, tmp, |
4070 | shift, size ? 16 : 8); | |
7d1b0095 | 4071 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 4072 | } |
8f8e3aa4 | 4073 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb | 4074 | } else { /* Store */ |
8f8e3aa4 PB |
4075 | tmp = neon_load_reg(rd, pass); |
4076 | if (shift) | |
4077 | tcg_gen_shri_i32(tmp, tmp, shift); | |
9ee6e8bb PB |
4078 | switch (size) { |
4079 | case 0: | |
58ab8e96 | 4080 | tcg_gen_qemu_st8(tmp, addr, IS_USER(s)); |
9ee6e8bb PB |
4081 | break; |
4082 | case 1: | |
58ab8e96 | 4083 | tcg_gen_qemu_st16(tmp, addr, IS_USER(s)); |
9ee6e8bb PB |
4084 | break; |
4085 | case 2: | |
58ab8e96 | 4086 | tcg_gen_qemu_st32(tmp, addr, IS_USER(s)); |
9ee6e8bb | 4087 | break; |
99c475ab | 4088 | } |
58ab8e96 | 4089 | tcg_temp_free_i32(tmp); |
99c475ab | 4090 | } |
9ee6e8bb | 4091 | rd += stride; |
1b2b1e54 | 4092 | tcg_gen_addi_i32(addr, addr, 1 << size); |
99c475ab | 4093 | } |
e318a60b | 4094 | tcg_temp_free_i32(addr); |
9ee6e8bb | 4095 | stride = nregs * (1 << size); |
99c475ab | 4096 | } |
9ee6e8bb PB |
4097 | } |
4098 | if (rm != 15) { | |
39d5492a | 4099 | TCGv_i32 base; |
b26eefb6 PB |
4100 | |
4101 | base = load_reg(s, rn); | |
9ee6e8bb | 4102 | if (rm == 13) { |
b26eefb6 | 4103 | tcg_gen_addi_i32(base, base, stride); |
9ee6e8bb | 4104 | } else { |
39d5492a | 4105 | TCGv_i32 index; |
b26eefb6 PB |
4106 | index = load_reg(s, rm); |
4107 | tcg_gen_add_i32(base, base, index); | |
7d1b0095 | 4108 | tcg_temp_free_i32(index); |
9ee6e8bb | 4109 | } |
b26eefb6 | 4110 | store_reg(s, rn, base); |
9ee6e8bb PB |
4111 | } |
4112 | return 0; | |
4113 | } | |
3b46e624 | 4114 | |
8f8e3aa4 | 4115 | /* Bitwise select. dest = c ? t : f. Clobbers T and F. */ |
39d5492a | 4116 | static void gen_neon_bsl(TCGv_i32 dest, TCGv_i32 t, TCGv_i32 f, TCGv_i32 c) |
8f8e3aa4 PB |
4117 | { |
4118 | tcg_gen_and_i32(t, t, c); | |
f669df27 | 4119 | tcg_gen_andc_i32(f, f, c); |
8f8e3aa4 PB |
4120 | tcg_gen_or_i32(dest, t, f); |
4121 | } | |
4122 | ||
39d5492a | 4123 | static inline void gen_neon_narrow(int size, TCGv_i32 dest, TCGv_i64 src) |
ad69471c PB |
4124 | { |
4125 | switch (size) { | |
4126 | case 0: gen_helper_neon_narrow_u8(dest, src); break; | |
4127 | case 1: gen_helper_neon_narrow_u16(dest, src); break; | |
4128 | case 2: tcg_gen_trunc_i64_i32(dest, src); break; | |
4129 | default: abort(); | |
4130 | } | |
4131 | } | |
4132 | ||
39d5492a | 4133 | static inline void gen_neon_narrow_sats(int size, TCGv_i32 dest, TCGv_i64 src) |
ad69471c PB |
4134 | { |
4135 | switch (size) { | |
02da0b2d PM |
4136 | case 0: gen_helper_neon_narrow_sat_s8(dest, cpu_env, src); break; |
4137 | case 1: gen_helper_neon_narrow_sat_s16(dest, cpu_env, src); break; | |
4138 | case 2: gen_helper_neon_narrow_sat_s32(dest, cpu_env, src); break; | |
ad69471c PB |
4139 | default: abort(); |
4140 | } | |
4141 | } | |
4142 | ||
39d5492a | 4143 | static inline void gen_neon_narrow_satu(int size, TCGv_i32 dest, TCGv_i64 src) |
ad69471c PB |
4144 | { |
4145 | switch (size) { | |
02da0b2d PM |
4146 | case 0: gen_helper_neon_narrow_sat_u8(dest, cpu_env, src); break; |
4147 | case 1: gen_helper_neon_narrow_sat_u16(dest, cpu_env, src); break; | |
4148 | case 2: gen_helper_neon_narrow_sat_u32(dest, cpu_env, src); break; | |
ad69471c PB |
4149 | default: abort(); |
4150 | } | |
4151 | } | |
4152 | ||
39d5492a | 4153 | static inline void gen_neon_unarrow_sats(int size, TCGv_i32 dest, TCGv_i64 src) |
af1bbf30 JR |
4154 | { |
4155 | switch (size) { | |
02da0b2d PM |
4156 | case 0: gen_helper_neon_unarrow_sat8(dest, cpu_env, src); break; |
4157 | case 1: gen_helper_neon_unarrow_sat16(dest, cpu_env, src); break; | |
4158 | case 2: gen_helper_neon_unarrow_sat32(dest, cpu_env, src); break; | |
af1bbf30 JR |
4159 | default: abort(); |
4160 | } | |
4161 | } | |
4162 | ||
39d5492a | 4163 | static inline void gen_neon_shift_narrow(int size, TCGv_i32 var, TCGv_i32 shift, |
ad69471c PB |
4164 | int q, int u) |
4165 | { | |
4166 | if (q) { | |
4167 | if (u) { | |
4168 | switch (size) { | |
4169 | case 1: gen_helper_neon_rshl_u16(var, var, shift); break; | |
4170 | case 2: gen_helper_neon_rshl_u32(var, var, shift); break; | |
4171 | default: abort(); | |
4172 | } | |
4173 | } else { | |
4174 | switch (size) { | |
4175 | case 1: gen_helper_neon_rshl_s16(var, var, shift); break; | |
4176 | case 2: gen_helper_neon_rshl_s32(var, var, shift); break; | |
4177 | default: abort(); | |
4178 | } | |
4179 | } | |
4180 | } else { | |
4181 | if (u) { | |
4182 | switch (size) { | |
b408a9b0 CL |
4183 | case 1: gen_helper_neon_shl_u16(var, var, shift); break; |
4184 | case 2: gen_helper_neon_shl_u32(var, var, shift); break; | |
ad69471c PB |
4185 | default: abort(); |
4186 | } | |
4187 | } else { | |
4188 | switch (size) { | |
4189 | case 1: gen_helper_neon_shl_s16(var, var, shift); break; | |
4190 | case 2: gen_helper_neon_shl_s32(var, var, shift); break; | |
4191 | default: abort(); | |
4192 | } | |
4193 | } | |
4194 | } | |
4195 | } | |
4196 | ||
39d5492a | 4197 | static inline void gen_neon_widen(TCGv_i64 dest, TCGv_i32 src, int size, int u) |
ad69471c PB |
4198 | { |
4199 | if (u) { | |
4200 | switch (size) { | |
4201 | case 0: gen_helper_neon_widen_u8(dest, src); break; | |
4202 | case 1: gen_helper_neon_widen_u16(dest, src); break; | |
4203 | case 2: tcg_gen_extu_i32_i64(dest, src); break; | |
4204 | default: abort(); | |
4205 | } | |
4206 | } else { | |
4207 | switch (size) { | |
4208 | case 0: gen_helper_neon_widen_s8(dest, src); break; | |
4209 | case 1: gen_helper_neon_widen_s16(dest, src); break; | |
4210 | case 2: tcg_gen_ext_i32_i64(dest, src); break; | |
4211 | default: abort(); | |
4212 | } | |
4213 | } | |
7d1b0095 | 4214 | tcg_temp_free_i32(src); |
ad69471c PB |
4215 | } |
4216 | ||
4217 | static inline void gen_neon_addl(int size) | |
4218 | { | |
4219 | switch (size) { | |
4220 | case 0: gen_helper_neon_addl_u16(CPU_V001); break; | |
4221 | case 1: gen_helper_neon_addl_u32(CPU_V001); break; | |
4222 | case 2: tcg_gen_add_i64(CPU_V001); break; | |
4223 | default: abort(); | |
4224 | } | |
4225 | } | |
4226 | ||
4227 | static inline void gen_neon_subl(int size) | |
4228 | { | |
4229 | switch (size) { | |
4230 | case 0: gen_helper_neon_subl_u16(CPU_V001); break; | |
4231 | case 1: gen_helper_neon_subl_u32(CPU_V001); break; | |
4232 | case 2: tcg_gen_sub_i64(CPU_V001); break; | |
4233 | default: abort(); | |
4234 | } | |
4235 | } | |
4236 | ||
a7812ae4 | 4237 | static inline void gen_neon_negl(TCGv_i64 var, int size) |
ad69471c PB |
4238 | { |
4239 | switch (size) { | |
4240 | case 0: gen_helper_neon_negl_u16(var, var); break; | |
4241 | case 1: gen_helper_neon_negl_u32(var, var); break; | |
ee6fa559 PM |
4242 | case 2: |
4243 | tcg_gen_neg_i64(var, var); | |
4244 | break; | |
ad69471c PB |
4245 | default: abort(); |
4246 | } | |
4247 | } | |
4248 | ||
a7812ae4 | 4249 | static inline void gen_neon_addl_saturate(TCGv_i64 op0, TCGv_i64 op1, int size) |
ad69471c PB |
4250 | { |
4251 | switch (size) { | |
02da0b2d PM |
4252 | case 1: gen_helper_neon_addl_saturate_s32(op0, cpu_env, op0, op1); break; |
4253 | case 2: gen_helper_neon_addl_saturate_s64(op0, cpu_env, op0, op1); break; | |
ad69471c PB |
4254 | default: abort(); |
4255 | } | |
4256 | } | |
4257 | ||
39d5492a PM |
4258 | static inline void gen_neon_mull(TCGv_i64 dest, TCGv_i32 a, TCGv_i32 b, |
4259 | int size, int u) | |
ad69471c | 4260 | { |
a7812ae4 | 4261 | TCGv_i64 tmp; |
ad69471c PB |
4262 | |
4263 | switch ((size << 1) | u) { | |
4264 | case 0: gen_helper_neon_mull_s8(dest, a, b); break; | |
4265 | case 1: gen_helper_neon_mull_u8(dest, a, b); break; | |
4266 | case 2: gen_helper_neon_mull_s16(dest, a, b); break; | |
4267 | case 3: gen_helper_neon_mull_u16(dest, a, b); break; | |
4268 | case 4: | |
4269 | tmp = gen_muls_i64_i32(a, b); | |
4270 | tcg_gen_mov_i64(dest, tmp); | |
7d2aabe2 | 4271 | tcg_temp_free_i64(tmp); |
ad69471c PB |
4272 | break; |
4273 | case 5: | |
4274 | tmp = gen_mulu_i64_i32(a, b); | |
4275 | tcg_gen_mov_i64(dest, tmp); | |
7d2aabe2 | 4276 | tcg_temp_free_i64(tmp); |
ad69471c PB |
4277 | break; |
4278 | default: abort(); | |
4279 | } | |
c6067f04 CL |
4280 | |
4281 | /* gen_helper_neon_mull_[su]{8|16} do not free their parameters. | |
4282 | Don't forget to clean them now. */ | |
4283 | if (size < 2) { | |
7d1b0095 PM |
4284 | tcg_temp_free_i32(a); |
4285 | tcg_temp_free_i32(b); | |
c6067f04 | 4286 | } |
ad69471c PB |
4287 | } |
4288 | ||
39d5492a PM |
4289 | static void gen_neon_narrow_op(int op, int u, int size, |
4290 | TCGv_i32 dest, TCGv_i64 src) | |
c33171c7 PM |
4291 | { |
4292 | if (op) { | |
4293 | if (u) { | |
4294 | gen_neon_unarrow_sats(size, dest, src); | |
4295 | } else { | |
4296 | gen_neon_narrow(size, dest, src); | |
4297 | } | |
4298 | } else { | |
4299 | if (u) { | |
4300 | gen_neon_narrow_satu(size, dest, src); | |
4301 | } else { | |
4302 | gen_neon_narrow_sats(size, dest, src); | |
4303 | } | |
4304 | } | |
4305 | } | |
4306 | ||
62698be3 PM |
4307 | /* Symbolic constants for op fields for Neon 3-register same-length. |
4308 | * The values correspond to bits [11:8,4]; see the ARM ARM DDI0406B | |
4309 | * table A7-9. | |
4310 | */ | |
4311 | #define NEON_3R_VHADD 0 | |
4312 | #define NEON_3R_VQADD 1 | |
4313 | #define NEON_3R_VRHADD 2 | |
4314 | #define NEON_3R_LOGIC 3 /* VAND,VBIC,VORR,VMOV,VORN,VEOR,VBIF,VBIT,VBSL */ | |
4315 | #define NEON_3R_VHSUB 4 | |
4316 | #define NEON_3R_VQSUB 5 | |
4317 | #define NEON_3R_VCGT 6 | |
4318 | #define NEON_3R_VCGE 7 | |
4319 | #define NEON_3R_VSHL 8 | |
4320 | #define NEON_3R_VQSHL 9 | |
4321 | #define NEON_3R_VRSHL 10 | |
4322 | #define NEON_3R_VQRSHL 11 | |
4323 | #define NEON_3R_VMAX 12 | |
4324 | #define NEON_3R_VMIN 13 | |
4325 | #define NEON_3R_VABD 14 | |
4326 | #define NEON_3R_VABA 15 | |
4327 | #define NEON_3R_VADD_VSUB 16 | |
4328 | #define NEON_3R_VTST_VCEQ 17 | |
4329 | #define NEON_3R_VML 18 /* VMLA, VMLAL, VMLS, VMLSL */ | |
4330 | #define NEON_3R_VMUL 19 | |
4331 | #define NEON_3R_VPMAX 20 | |
4332 | #define NEON_3R_VPMIN 21 | |
4333 | #define NEON_3R_VQDMULH_VQRDMULH 22 | |
4334 | #define NEON_3R_VPADD 23 | |
da97f52c | 4335 | #define NEON_3R_VFM 25 /* VFMA, VFMS : float fused multiply-add */ |
62698be3 PM |
4336 | #define NEON_3R_FLOAT_ARITH 26 /* float VADD, VSUB, VPADD, VABD */ |
4337 | #define NEON_3R_FLOAT_MULTIPLY 27 /* float VMLA, VMLS, VMUL */ | |
4338 | #define NEON_3R_FLOAT_CMP 28 /* float VCEQ, VCGE, VCGT */ | |
4339 | #define NEON_3R_FLOAT_ACMP 29 /* float VACGE, VACGT, VACLE, VACLT */ | |
4340 | #define NEON_3R_FLOAT_MINMAX 30 /* float VMIN, VMAX */ | |
4341 | #define NEON_3R_VRECPS_VRSQRTS 31 /* float VRECPS, VRSQRTS */ | |
4342 | ||
4343 | static const uint8_t neon_3r_sizes[] = { | |
4344 | [NEON_3R_VHADD] = 0x7, | |
4345 | [NEON_3R_VQADD] = 0xf, | |
4346 | [NEON_3R_VRHADD] = 0x7, | |
4347 | [NEON_3R_LOGIC] = 0xf, /* size field encodes op type */ | |
4348 | [NEON_3R_VHSUB] = 0x7, | |
4349 | [NEON_3R_VQSUB] = 0xf, | |
4350 | [NEON_3R_VCGT] = 0x7, | |
4351 | [NEON_3R_VCGE] = 0x7, | |
4352 | [NEON_3R_VSHL] = 0xf, | |
4353 | [NEON_3R_VQSHL] = 0xf, | |
4354 | [NEON_3R_VRSHL] = 0xf, | |
4355 | [NEON_3R_VQRSHL] = 0xf, | |
4356 | [NEON_3R_VMAX] = 0x7, | |
4357 | [NEON_3R_VMIN] = 0x7, | |
4358 | [NEON_3R_VABD] = 0x7, | |
4359 | [NEON_3R_VABA] = 0x7, | |
4360 | [NEON_3R_VADD_VSUB] = 0xf, | |
4361 | [NEON_3R_VTST_VCEQ] = 0x7, | |
4362 | [NEON_3R_VML] = 0x7, | |
4363 | [NEON_3R_VMUL] = 0x7, | |
4364 | [NEON_3R_VPMAX] = 0x7, | |
4365 | [NEON_3R_VPMIN] = 0x7, | |
4366 | [NEON_3R_VQDMULH_VQRDMULH] = 0x6, | |
4367 | [NEON_3R_VPADD] = 0x7, | |
da97f52c | 4368 | [NEON_3R_VFM] = 0x5, /* size bit 1 encodes op */ |
62698be3 PM |
4369 | [NEON_3R_FLOAT_ARITH] = 0x5, /* size bit 1 encodes op */ |
4370 | [NEON_3R_FLOAT_MULTIPLY] = 0x5, /* size bit 1 encodes op */ | |
4371 | [NEON_3R_FLOAT_CMP] = 0x5, /* size bit 1 encodes op */ | |
4372 | [NEON_3R_FLOAT_ACMP] = 0x5, /* size bit 1 encodes op */ | |
4373 | [NEON_3R_FLOAT_MINMAX] = 0x5, /* size bit 1 encodes op */ | |
4374 | [NEON_3R_VRECPS_VRSQRTS] = 0x5, /* size bit 1 encodes op */ | |
4375 | }; | |
4376 | ||
600b828c PM |
4377 | /* Symbolic constants for op fields for Neon 2-register miscellaneous. |
4378 | * The values correspond to bits [17:16,10:7]; see the ARM ARM DDI0406B | |
4379 | * table A7-13. | |
4380 | */ | |
4381 | #define NEON_2RM_VREV64 0 | |
4382 | #define NEON_2RM_VREV32 1 | |
4383 | #define NEON_2RM_VREV16 2 | |
4384 | #define NEON_2RM_VPADDL 4 | |
4385 | #define NEON_2RM_VPADDL_U 5 | |
4386 | #define NEON_2RM_VCLS 8 | |
4387 | #define NEON_2RM_VCLZ 9 | |
4388 | #define NEON_2RM_VCNT 10 | |
4389 | #define NEON_2RM_VMVN 11 | |
4390 | #define NEON_2RM_VPADAL 12 | |
4391 | #define NEON_2RM_VPADAL_U 13 | |
4392 | #define NEON_2RM_VQABS 14 | |
4393 | #define NEON_2RM_VQNEG 15 | |
4394 | #define NEON_2RM_VCGT0 16 | |
4395 | #define NEON_2RM_VCGE0 17 | |
4396 | #define NEON_2RM_VCEQ0 18 | |
4397 | #define NEON_2RM_VCLE0 19 | |
4398 | #define NEON_2RM_VCLT0 20 | |
4399 | #define NEON_2RM_VABS 22 | |
4400 | #define NEON_2RM_VNEG 23 | |
4401 | #define NEON_2RM_VCGT0_F 24 | |
4402 | #define NEON_2RM_VCGE0_F 25 | |
4403 | #define NEON_2RM_VCEQ0_F 26 | |
4404 | #define NEON_2RM_VCLE0_F 27 | |
4405 | #define NEON_2RM_VCLT0_F 28 | |
4406 | #define NEON_2RM_VABS_F 30 | |
4407 | #define NEON_2RM_VNEG_F 31 | |
4408 | #define NEON_2RM_VSWP 32 | |
4409 | #define NEON_2RM_VTRN 33 | |
4410 | #define NEON_2RM_VUZP 34 | |
4411 | #define NEON_2RM_VZIP 35 | |
4412 | #define NEON_2RM_VMOVN 36 /* Includes VQMOVN, VQMOVUN */ | |
4413 | #define NEON_2RM_VQMOVN 37 /* Includes VQMOVUN */ | |
4414 | #define NEON_2RM_VSHLL 38 | |
4415 | #define NEON_2RM_VCVT_F16_F32 44 | |
4416 | #define NEON_2RM_VCVT_F32_F16 46 | |
4417 | #define NEON_2RM_VRECPE 56 | |
4418 | #define NEON_2RM_VRSQRTE 57 | |
4419 | #define NEON_2RM_VRECPE_F 58 | |
4420 | #define NEON_2RM_VRSQRTE_F 59 | |
4421 | #define NEON_2RM_VCVT_FS 60 | |
4422 | #define NEON_2RM_VCVT_FU 61 | |
4423 | #define NEON_2RM_VCVT_SF 62 | |
4424 | #define NEON_2RM_VCVT_UF 63 | |
4425 | ||
4426 | static int neon_2rm_is_float_op(int op) | |
4427 | { | |
4428 | /* Return true if this neon 2reg-misc op is float-to-float */ | |
4429 | return (op == NEON_2RM_VABS_F || op == NEON_2RM_VNEG_F || | |
4430 | op >= NEON_2RM_VRECPE_F); | |
4431 | } | |
4432 | ||
4433 | /* Each entry in this array has bit n set if the insn allows | |
4434 | * size value n (otherwise it will UNDEF). Since unallocated | |
4435 | * op values will have no bits set they always UNDEF. | |
4436 | */ | |
4437 | static const uint8_t neon_2rm_sizes[] = { | |
4438 | [NEON_2RM_VREV64] = 0x7, | |
4439 | [NEON_2RM_VREV32] = 0x3, | |
4440 | [NEON_2RM_VREV16] = 0x1, | |
4441 | [NEON_2RM_VPADDL] = 0x7, | |
4442 | [NEON_2RM_VPADDL_U] = 0x7, | |
4443 | [NEON_2RM_VCLS] = 0x7, | |
4444 | [NEON_2RM_VCLZ] = 0x7, | |
4445 | [NEON_2RM_VCNT] = 0x1, | |
4446 | [NEON_2RM_VMVN] = 0x1, | |
4447 | [NEON_2RM_VPADAL] = 0x7, | |
4448 | [NEON_2RM_VPADAL_U] = 0x7, | |
4449 | [NEON_2RM_VQABS] = 0x7, | |
4450 | [NEON_2RM_VQNEG] = 0x7, | |
4451 | [NEON_2RM_VCGT0] = 0x7, | |
4452 | [NEON_2RM_VCGE0] = 0x7, | |
4453 | [NEON_2RM_VCEQ0] = 0x7, | |
4454 | [NEON_2RM_VCLE0] = 0x7, | |
4455 | [NEON_2RM_VCLT0] = 0x7, | |
4456 | [NEON_2RM_VABS] = 0x7, | |
4457 | [NEON_2RM_VNEG] = 0x7, | |
4458 | [NEON_2RM_VCGT0_F] = 0x4, | |
4459 | [NEON_2RM_VCGE0_F] = 0x4, | |
4460 | [NEON_2RM_VCEQ0_F] = 0x4, | |
4461 | [NEON_2RM_VCLE0_F] = 0x4, | |
4462 | [NEON_2RM_VCLT0_F] = 0x4, | |
4463 | [NEON_2RM_VABS_F] = 0x4, | |
4464 | [NEON_2RM_VNEG_F] = 0x4, | |
4465 | [NEON_2RM_VSWP] = 0x1, | |
4466 | [NEON_2RM_VTRN] = 0x7, | |
4467 | [NEON_2RM_VUZP] = 0x7, | |
4468 | [NEON_2RM_VZIP] = 0x7, | |
4469 | [NEON_2RM_VMOVN] = 0x7, | |
4470 | [NEON_2RM_VQMOVN] = 0x7, | |
4471 | [NEON_2RM_VSHLL] = 0x7, | |
4472 | [NEON_2RM_VCVT_F16_F32] = 0x2, | |
4473 | [NEON_2RM_VCVT_F32_F16] = 0x2, | |
4474 | [NEON_2RM_VRECPE] = 0x4, | |
4475 | [NEON_2RM_VRSQRTE] = 0x4, | |
4476 | [NEON_2RM_VRECPE_F] = 0x4, | |
4477 | [NEON_2RM_VRSQRTE_F] = 0x4, | |
4478 | [NEON_2RM_VCVT_FS] = 0x4, | |
4479 | [NEON_2RM_VCVT_FU] = 0x4, | |
4480 | [NEON_2RM_VCVT_SF] = 0x4, | |
4481 | [NEON_2RM_VCVT_UF] = 0x4, | |
4482 | }; | |
4483 | ||
9ee6e8bb PB |
4484 | /* Translate a NEON data processing instruction. Return nonzero if the |
4485 | instruction is invalid. | |
ad69471c PB |
4486 | We process data in a mixture of 32-bit and 64-bit chunks. |
4487 | Mostly we use 32-bit chunks so we can use normal scalar instructions. */ | |
2c0262af | 4488 | |
0ecb72a5 | 4489 | static int disas_neon_data_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
9ee6e8bb PB |
4490 | { |
4491 | int op; | |
4492 | int q; | |
4493 | int rd, rn, rm; | |
4494 | int size; | |
4495 | int shift; | |
4496 | int pass; | |
4497 | int count; | |
4498 | int pairwise; | |
4499 | int u; | |
ca9a32e4 | 4500 | uint32_t imm, mask; |
39d5492a | 4501 | TCGv_i32 tmp, tmp2, tmp3, tmp4, tmp5; |
a7812ae4 | 4502 | TCGv_i64 tmp64; |
9ee6e8bb | 4503 | |
5df8bac1 | 4504 | if (!s->vfp_enabled) |
9ee6e8bb PB |
4505 | return 1; |
4506 | q = (insn & (1 << 6)) != 0; | |
4507 | u = (insn >> 24) & 1; | |
4508 | VFP_DREG_D(rd, insn); | |
4509 | VFP_DREG_N(rn, insn); | |
4510 | VFP_DREG_M(rm, insn); | |
4511 | size = (insn >> 20) & 3; | |
4512 | if ((insn & (1 << 23)) == 0) { | |
4513 | /* Three register same length. */ | |
4514 | op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1); | |
62698be3 PM |
4515 | /* Catch invalid op and bad size combinations: UNDEF */ |
4516 | if ((neon_3r_sizes[op] & (1 << size)) == 0) { | |
4517 | return 1; | |
4518 | } | |
25f84f79 PM |
4519 | /* All insns of this form UNDEF for either this condition or the |
4520 | * superset of cases "Q==1"; we catch the latter later. | |
4521 | */ | |
4522 | if (q && ((rd | rn | rm) & 1)) { | |
4523 | return 1; | |
4524 | } | |
62698be3 PM |
4525 | if (size == 3 && op != NEON_3R_LOGIC) { |
4526 | /* 64-bit element instructions. */ | |
9ee6e8bb | 4527 | for (pass = 0; pass < (q ? 2 : 1); pass++) { |
ad69471c PB |
4528 | neon_load_reg64(cpu_V0, rn + pass); |
4529 | neon_load_reg64(cpu_V1, rm + pass); | |
9ee6e8bb | 4530 | switch (op) { |
62698be3 | 4531 | case NEON_3R_VQADD: |
9ee6e8bb | 4532 | if (u) { |
02da0b2d PM |
4533 | gen_helper_neon_qadd_u64(cpu_V0, cpu_env, |
4534 | cpu_V0, cpu_V1); | |
2c0262af | 4535 | } else { |
02da0b2d PM |
4536 | gen_helper_neon_qadd_s64(cpu_V0, cpu_env, |
4537 | cpu_V0, cpu_V1); | |
2c0262af | 4538 | } |
9ee6e8bb | 4539 | break; |
62698be3 | 4540 | case NEON_3R_VQSUB: |
9ee6e8bb | 4541 | if (u) { |
02da0b2d PM |
4542 | gen_helper_neon_qsub_u64(cpu_V0, cpu_env, |
4543 | cpu_V0, cpu_V1); | |
ad69471c | 4544 | } else { |
02da0b2d PM |
4545 | gen_helper_neon_qsub_s64(cpu_V0, cpu_env, |
4546 | cpu_V0, cpu_V1); | |
ad69471c PB |
4547 | } |
4548 | break; | |
62698be3 | 4549 | case NEON_3R_VSHL: |
ad69471c PB |
4550 | if (u) { |
4551 | gen_helper_neon_shl_u64(cpu_V0, cpu_V1, cpu_V0); | |
4552 | } else { | |
4553 | gen_helper_neon_shl_s64(cpu_V0, cpu_V1, cpu_V0); | |
4554 | } | |
4555 | break; | |
62698be3 | 4556 | case NEON_3R_VQSHL: |
ad69471c | 4557 | if (u) { |
02da0b2d PM |
4558 | gen_helper_neon_qshl_u64(cpu_V0, cpu_env, |
4559 | cpu_V1, cpu_V0); | |
ad69471c | 4560 | } else { |
02da0b2d PM |
4561 | gen_helper_neon_qshl_s64(cpu_V0, cpu_env, |
4562 | cpu_V1, cpu_V0); | |
ad69471c PB |
4563 | } |
4564 | break; | |
62698be3 | 4565 | case NEON_3R_VRSHL: |
ad69471c PB |
4566 | if (u) { |
4567 | gen_helper_neon_rshl_u64(cpu_V0, cpu_V1, cpu_V0); | |
1e8d4eec | 4568 | } else { |
ad69471c PB |
4569 | gen_helper_neon_rshl_s64(cpu_V0, cpu_V1, cpu_V0); |
4570 | } | |
4571 | break; | |
62698be3 | 4572 | case NEON_3R_VQRSHL: |
ad69471c | 4573 | if (u) { |
02da0b2d PM |
4574 | gen_helper_neon_qrshl_u64(cpu_V0, cpu_env, |
4575 | cpu_V1, cpu_V0); | |
ad69471c | 4576 | } else { |
02da0b2d PM |
4577 | gen_helper_neon_qrshl_s64(cpu_V0, cpu_env, |
4578 | cpu_V1, cpu_V0); | |
1e8d4eec | 4579 | } |
9ee6e8bb | 4580 | break; |
62698be3 | 4581 | case NEON_3R_VADD_VSUB: |
9ee6e8bb | 4582 | if (u) { |
ad69471c | 4583 | tcg_gen_sub_i64(CPU_V001); |
9ee6e8bb | 4584 | } else { |
ad69471c | 4585 | tcg_gen_add_i64(CPU_V001); |
9ee6e8bb PB |
4586 | } |
4587 | break; | |
4588 | default: | |
4589 | abort(); | |
2c0262af | 4590 | } |
ad69471c | 4591 | neon_store_reg64(cpu_V0, rd + pass); |
2c0262af | 4592 | } |
9ee6e8bb | 4593 | return 0; |
2c0262af | 4594 | } |
25f84f79 | 4595 | pairwise = 0; |
9ee6e8bb | 4596 | switch (op) { |
62698be3 PM |
4597 | case NEON_3R_VSHL: |
4598 | case NEON_3R_VQSHL: | |
4599 | case NEON_3R_VRSHL: | |
4600 | case NEON_3R_VQRSHL: | |
9ee6e8bb | 4601 | { |
ad69471c PB |
4602 | int rtmp; |
4603 | /* Shift instruction operands are reversed. */ | |
4604 | rtmp = rn; | |
9ee6e8bb | 4605 | rn = rm; |
ad69471c | 4606 | rm = rtmp; |
9ee6e8bb | 4607 | } |
2c0262af | 4608 | break; |
25f84f79 PM |
4609 | case NEON_3R_VPADD: |
4610 | if (u) { | |
4611 | return 1; | |
4612 | } | |
4613 | /* Fall through */ | |
62698be3 PM |
4614 | case NEON_3R_VPMAX: |
4615 | case NEON_3R_VPMIN: | |
9ee6e8bb | 4616 | pairwise = 1; |
2c0262af | 4617 | break; |
25f84f79 PM |
4618 | case NEON_3R_FLOAT_ARITH: |
4619 | pairwise = (u && size < 2); /* if VPADD (float) */ | |
4620 | break; | |
4621 | case NEON_3R_FLOAT_MINMAX: | |
4622 | pairwise = u; /* if VPMIN/VPMAX (float) */ | |
4623 | break; | |
4624 | case NEON_3R_FLOAT_CMP: | |
4625 | if (!u && size) { | |
4626 | /* no encoding for U=0 C=1x */ | |
4627 | return 1; | |
4628 | } | |
4629 | break; | |
4630 | case NEON_3R_FLOAT_ACMP: | |
4631 | if (!u) { | |
4632 | return 1; | |
4633 | } | |
4634 | break; | |
4635 | case NEON_3R_VRECPS_VRSQRTS: | |
4636 | if (u) { | |
4637 | return 1; | |
4638 | } | |
2c0262af | 4639 | break; |
25f84f79 PM |
4640 | case NEON_3R_VMUL: |
4641 | if (u && (size != 0)) { | |
4642 | /* UNDEF on invalid size for polynomial subcase */ | |
4643 | return 1; | |
4644 | } | |
2c0262af | 4645 | break; |
da97f52c PM |
4646 | case NEON_3R_VFM: |
4647 | if (!arm_feature(env, ARM_FEATURE_VFP4) || u) { | |
4648 | return 1; | |
4649 | } | |
4650 | break; | |
9ee6e8bb | 4651 | default: |
2c0262af | 4652 | break; |
9ee6e8bb | 4653 | } |
dd8fbd78 | 4654 | |
25f84f79 PM |
4655 | if (pairwise && q) { |
4656 | /* All the pairwise insns UNDEF if Q is set */ | |
4657 | return 1; | |
4658 | } | |
4659 | ||
9ee6e8bb PB |
4660 | for (pass = 0; pass < (q ? 4 : 2); pass++) { |
4661 | ||
4662 | if (pairwise) { | |
4663 | /* Pairwise. */ | |
a5a14945 JR |
4664 | if (pass < 1) { |
4665 | tmp = neon_load_reg(rn, 0); | |
4666 | tmp2 = neon_load_reg(rn, 1); | |
9ee6e8bb | 4667 | } else { |
a5a14945 JR |
4668 | tmp = neon_load_reg(rm, 0); |
4669 | tmp2 = neon_load_reg(rm, 1); | |
9ee6e8bb PB |
4670 | } |
4671 | } else { | |
4672 | /* Elementwise. */ | |
dd8fbd78 FN |
4673 | tmp = neon_load_reg(rn, pass); |
4674 | tmp2 = neon_load_reg(rm, pass); | |
9ee6e8bb PB |
4675 | } |
4676 | switch (op) { | |
62698be3 | 4677 | case NEON_3R_VHADD: |
9ee6e8bb PB |
4678 | GEN_NEON_INTEGER_OP(hadd); |
4679 | break; | |
62698be3 | 4680 | case NEON_3R_VQADD: |
02da0b2d | 4681 | GEN_NEON_INTEGER_OP_ENV(qadd); |
2c0262af | 4682 | break; |
62698be3 | 4683 | case NEON_3R_VRHADD: |
9ee6e8bb | 4684 | GEN_NEON_INTEGER_OP(rhadd); |
2c0262af | 4685 | break; |
62698be3 | 4686 | case NEON_3R_LOGIC: /* Logic ops. */ |
9ee6e8bb PB |
4687 | switch ((u << 2) | size) { |
4688 | case 0: /* VAND */ | |
dd8fbd78 | 4689 | tcg_gen_and_i32(tmp, tmp, tmp2); |
9ee6e8bb PB |
4690 | break; |
4691 | case 1: /* BIC */ | |
f669df27 | 4692 | tcg_gen_andc_i32(tmp, tmp, tmp2); |
9ee6e8bb PB |
4693 | break; |
4694 | case 2: /* VORR */ | |
dd8fbd78 | 4695 | tcg_gen_or_i32(tmp, tmp, tmp2); |
9ee6e8bb PB |
4696 | break; |
4697 | case 3: /* VORN */ | |
f669df27 | 4698 | tcg_gen_orc_i32(tmp, tmp, tmp2); |
9ee6e8bb PB |
4699 | break; |
4700 | case 4: /* VEOR */ | |
dd8fbd78 | 4701 | tcg_gen_xor_i32(tmp, tmp, tmp2); |
9ee6e8bb PB |
4702 | break; |
4703 | case 5: /* VBSL */ | |
dd8fbd78 FN |
4704 | tmp3 = neon_load_reg(rd, pass); |
4705 | gen_neon_bsl(tmp, tmp, tmp2, tmp3); | |
7d1b0095 | 4706 | tcg_temp_free_i32(tmp3); |
9ee6e8bb PB |
4707 | break; |
4708 | case 6: /* VBIT */ | |
dd8fbd78 FN |
4709 | tmp3 = neon_load_reg(rd, pass); |
4710 | gen_neon_bsl(tmp, tmp, tmp3, tmp2); | |
7d1b0095 | 4711 | tcg_temp_free_i32(tmp3); |
9ee6e8bb PB |
4712 | break; |
4713 | case 7: /* VBIF */ | |
dd8fbd78 FN |
4714 | tmp3 = neon_load_reg(rd, pass); |
4715 | gen_neon_bsl(tmp, tmp3, tmp, tmp2); | |
7d1b0095 | 4716 | tcg_temp_free_i32(tmp3); |
9ee6e8bb | 4717 | break; |
2c0262af FB |
4718 | } |
4719 | break; | |
62698be3 | 4720 | case NEON_3R_VHSUB: |
9ee6e8bb PB |
4721 | GEN_NEON_INTEGER_OP(hsub); |
4722 | break; | |
62698be3 | 4723 | case NEON_3R_VQSUB: |
02da0b2d | 4724 | GEN_NEON_INTEGER_OP_ENV(qsub); |
2c0262af | 4725 | break; |
62698be3 | 4726 | case NEON_3R_VCGT: |
9ee6e8bb PB |
4727 | GEN_NEON_INTEGER_OP(cgt); |
4728 | break; | |
62698be3 | 4729 | case NEON_3R_VCGE: |
9ee6e8bb PB |
4730 | GEN_NEON_INTEGER_OP(cge); |
4731 | break; | |
62698be3 | 4732 | case NEON_3R_VSHL: |
ad69471c | 4733 | GEN_NEON_INTEGER_OP(shl); |
2c0262af | 4734 | break; |
62698be3 | 4735 | case NEON_3R_VQSHL: |
02da0b2d | 4736 | GEN_NEON_INTEGER_OP_ENV(qshl); |
2c0262af | 4737 | break; |
62698be3 | 4738 | case NEON_3R_VRSHL: |
ad69471c | 4739 | GEN_NEON_INTEGER_OP(rshl); |
2c0262af | 4740 | break; |
62698be3 | 4741 | case NEON_3R_VQRSHL: |
02da0b2d | 4742 | GEN_NEON_INTEGER_OP_ENV(qrshl); |
9ee6e8bb | 4743 | break; |
62698be3 | 4744 | case NEON_3R_VMAX: |
9ee6e8bb PB |
4745 | GEN_NEON_INTEGER_OP(max); |
4746 | break; | |
62698be3 | 4747 | case NEON_3R_VMIN: |
9ee6e8bb PB |
4748 | GEN_NEON_INTEGER_OP(min); |
4749 | break; | |
62698be3 | 4750 | case NEON_3R_VABD: |
9ee6e8bb PB |
4751 | GEN_NEON_INTEGER_OP(abd); |
4752 | break; | |
62698be3 | 4753 | case NEON_3R_VABA: |
9ee6e8bb | 4754 | GEN_NEON_INTEGER_OP(abd); |
7d1b0095 | 4755 | tcg_temp_free_i32(tmp2); |
dd8fbd78 FN |
4756 | tmp2 = neon_load_reg(rd, pass); |
4757 | gen_neon_add(size, tmp, tmp2); | |
9ee6e8bb | 4758 | break; |
62698be3 | 4759 | case NEON_3R_VADD_VSUB: |
9ee6e8bb | 4760 | if (!u) { /* VADD */ |
62698be3 | 4761 | gen_neon_add(size, tmp, tmp2); |
9ee6e8bb PB |
4762 | } else { /* VSUB */ |
4763 | switch (size) { | |
dd8fbd78 FN |
4764 | case 0: gen_helper_neon_sub_u8(tmp, tmp, tmp2); break; |
4765 | case 1: gen_helper_neon_sub_u16(tmp, tmp, tmp2); break; | |
4766 | case 2: tcg_gen_sub_i32(tmp, tmp, tmp2); break; | |
62698be3 | 4767 | default: abort(); |
9ee6e8bb PB |
4768 | } |
4769 | } | |
4770 | break; | |
62698be3 | 4771 | case NEON_3R_VTST_VCEQ: |
9ee6e8bb PB |
4772 | if (!u) { /* VTST */ |
4773 | switch (size) { | |
dd8fbd78 FN |
4774 | case 0: gen_helper_neon_tst_u8(tmp, tmp, tmp2); break; |
4775 | case 1: gen_helper_neon_tst_u16(tmp, tmp, tmp2); break; | |
4776 | case 2: gen_helper_neon_tst_u32(tmp, tmp, tmp2); break; | |
62698be3 | 4777 | default: abort(); |
9ee6e8bb PB |
4778 | } |
4779 | } else { /* VCEQ */ | |
4780 | switch (size) { | |
dd8fbd78 FN |
4781 | case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break; |
4782 | case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break; | |
4783 | case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break; | |
62698be3 | 4784 | default: abort(); |
9ee6e8bb PB |
4785 | } |
4786 | } | |
4787 | break; | |
62698be3 | 4788 | case NEON_3R_VML: /* VMLA, VMLAL, VMLS,VMLSL */ |
9ee6e8bb | 4789 | switch (size) { |
dd8fbd78 FN |
4790 | case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
4791 | case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; | |
4792 | case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; | |
62698be3 | 4793 | default: abort(); |
9ee6e8bb | 4794 | } |
7d1b0095 | 4795 | tcg_temp_free_i32(tmp2); |
dd8fbd78 | 4796 | tmp2 = neon_load_reg(rd, pass); |
9ee6e8bb | 4797 | if (u) { /* VMLS */ |
dd8fbd78 | 4798 | gen_neon_rsb(size, tmp, tmp2); |
9ee6e8bb | 4799 | } else { /* VMLA */ |
dd8fbd78 | 4800 | gen_neon_add(size, tmp, tmp2); |
9ee6e8bb PB |
4801 | } |
4802 | break; | |
62698be3 | 4803 | case NEON_3R_VMUL: |
9ee6e8bb | 4804 | if (u) { /* polynomial */ |
dd8fbd78 | 4805 | gen_helper_neon_mul_p8(tmp, tmp, tmp2); |
9ee6e8bb PB |
4806 | } else { /* Integer */ |
4807 | switch (size) { | |
dd8fbd78 FN |
4808 | case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
4809 | case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; | |
4810 | case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; | |
62698be3 | 4811 | default: abort(); |
9ee6e8bb PB |
4812 | } |
4813 | } | |
4814 | break; | |
62698be3 | 4815 | case NEON_3R_VPMAX: |
9ee6e8bb PB |
4816 | GEN_NEON_INTEGER_OP(pmax); |
4817 | break; | |
62698be3 | 4818 | case NEON_3R_VPMIN: |
9ee6e8bb PB |
4819 | GEN_NEON_INTEGER_OP(pmin); |
4820 | break; | |
62698be3 | 4821 | case NEON_3R_VQDMULH_VQRDMULH: /* Multiply high. */ |
9ee6e8bb PB |
4822 | if (!u) { /* VQDMULH */ |
4823 | switch (size) { | |
02da0b2d PM |
4824 | case 1: |
4825 | gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); | |
4826 | break; | |
4827 | case 2: | |
4828 | gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); | |
4829 | break; | |
62698be3 | 4830 | default: abort(); |
9ee6e8bb | 4831 | } |
62698be3 | 4832 | } else { /* VQRDMULH */ |
9ee6e8bb | 4833 | switch (size) { |
02da0b2d PM |
4834 | case 1: |
4835 | gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); | |
4836 | break; | |
4837 | case 2: | |
4838 | gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); | |
4839 | break; | |
62698be3 | 4840 | default: abort(); |
9ee6e8bb PB |
4841 | } |
4842 | } | |
4843 | break; | |
62698be3 | 4844 | case NEON_3R_VPADD: |
9ee6e8bb | 4845 | switch (size) { |
dd8fbd78 FN |
4846 | case 0: gen_helper_neon_padd_u8(tmp, tmp, tmp2); break; |
4847 | case 1: gen_helper_neon_padd_u16(tmp, tmp, tmp2); break; | |
4848 | case 2: tcg_gen_add_i32(tmp, tmp, tmp2); break; | |
62698be3 | 4849 | default: abort(); |
9ee6e8bb PB |
4850 | } |
4851 | break; | |
62698be3 | 4852 | case NEON_3R_FLOAT_ARITH: /* Floating point arithmetic. */ |
aa47cfdd PM |
4853 | { |
4854 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
9ee6e8bb PB |
4855 | switch ((u << 2) | size) { |
4856 | case 0: /* VADD */ | |
aa47cfdd PM |
4857 | case 4: /* VPADD */ |
4858 | gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); | |
9ee6e8bb PB |
4859 | break; |
4860 | case 2: /* VSUB */ | |
aa47cfdd | 4861 | gen_helper_vfp_subs(tmp, tmp, tmp2, fpstatus); |
9ee6e8bb PB |
4862 | break; |
4863 | case 6: /* VABD */ | |
aa47cfdd | 4864 | gen_helper_neon_abd_f32(tmp, tmp, tmp2, fpstatus); |
9ee6e8bb PB |
4865 | break; |
4866 | default: | |
62698be3 | 4867 | abort(); |
9ee6e8bb | 4868 | } |
aa47cfdd | 4869 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 4870 | break; |
aa47cfdd | 4871 | } |
62698be3 | 4872 | case NEON_3R_FLOAT_MULTIPLY: |
aa47cfdd PM |
4873 | { |
4874 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
4875 | gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus); | |
9ee6e8bb | 4876 | if (!u) { |
7d1b0095 | 4877 | tcg_temp_free_i32(tmp2); |
dd8fbd78 | 4878 | tmp2 = neon_load_reg(rd, pass); |
9ee6e8bb | 4879 | if (size == 0) { |
aa47cfdd | 4880 | gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); |
9ee6e8bb | 4881 | } else { |
aa47cfdd | 4882 | gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus); |
9ee6e8bb PB |
4883 | } |
4884 | } | |
aa47cfdd | 4885 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 4886 | break; |
aa47cfdd | 4887 | } |
62698be3 | 4888 | case NEON_3R_FLOAT_CMP: |
aa47cfdd PM |
4889 | { |
4890 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
9ee6e8bb | 4891 | if (!u) { |
aa47cfdd | 4892 | gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus); |
b5ff1b31 | 4893 | } else { |
aa47cfdd PM |
4894 | if (size == 0) { |
4895 | gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus); | |
4896 | } else { | |
4897 | gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus); | |
4898 | } | |
b5ff1b31 | 4899 | } |
aa47cfdd | 4900 | tcg_temp_free_ptr(fpstatus); |
2c0262af | 4901 | break; |
aa47cfdd | 4902 | } |
62698be3 | 4903 | case NEON_3R_FLOAT_ACMP: |
aa47cfdd PM |
4904 | { |
4905 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
4906 | if (size == 0) { | |
4907 | gen_helper_neon_acge_f32(tmp, tmp, tmp2, fpstatus); | |
4908 | } else { | |
4909 | gen_helper_neon_acgt_f32(tmp, tmp, tmp2, fpstatus); | |
4910 | } | |
4911 | tcg_temp_free_ptr(fpstatus); | |
2c0262af | 4912 | break; |
aa47cfdd | 4913 | } |
62698be3 | 4914 | case NEON_3R_FLOAT_MINMAX: |
aa47cfdd PM |
4915 | { |
4916 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
4917 | if (size == 0) { | |
4918 | gen_helper_neon_max_f32(tmp, tmp, tmp2, fpstatus); | |
4919 | } else { | |
4920 | gen_helper_neon_min_f32(tmp, tmp, tmp2, fpstatus); | |
4921 | } | |
4922 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 4923 | break; |
aa47cfdd | 4924 | } |
62698be3 | 4925 | case NEON_3R_VRECPS_VRSQRTS: |
9ee6e8bb | 4926 | if (size == 0) |
dd8fbd78 | 4927 | gen_helper_recps_f32(tmp, tmp, tmp2, cpu_env); |
9ee6e8bb | 4928 | else |
dd8fbd78 | 4929 | gen_helper_rsqrts_f32(tmp, tmp, tmp2, cpu_env); |
2c0262af | 4930 | break; |
da97f52c PM |
4931 | case NEON_3R_VFM: |
4932 | { | |
4933 | /* VFMA, VFMS: fused multiply-add */ | |
4934 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
4935 | TCGv_i32 tmp3 = neon_load_reg(rd, pass); | |
4936 | if (size) { | |
4937 | /* VFMS */ | |
4938 | gen_helper_vfp_negs(tmp, tmp); | |
4939 | } | |
4940 | gen_helper_vfp_muladds(tmp, tmp, tmp2, tmp3, fpstatus); | |
4941 | tcg_temp_free_i32(tmp3); | |
4942 | tcg_temp_free_ptr(fpstatus); | |
4943 | break; | |
4944 | } | |
9ee6e8bb PB |
4945 | default: |
4946 | abort(); | |
2c0262af | 4947 | } |
7d1b0095 | 4948 | tcg_temp_free_i32(tmp2); |
dd8fbd78 | 4949 | |
9ee6e8bb PB |
4950 | /* Save the result. For elementwise operations we can put it |
4951 | straight into the destination register. For pairwise operations | |
4952 | we have to be careful to avoid clobbering the source operands. */ | |
4953 | if (pairwise && rd == rm) { | |
dd8fbd78 | 4954 | neon_store_scratch(pass, tmp); |
9ee6e8bb | 4955 | } else { |
dd8fbd78 | 4956 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
4957 | } |
4958 | ||
4959 | } /* for pass */ | |
4960 | if (pairwise && rd == rm) { | |
4961 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
dd8fbd78 FN |
4962 | tmp = neon_load_scratch(pass); |
4963 | neon_store_reg(rd, pass, tmp); | |
9ee6e8bb PB |
4964 | } |
4965 | } | |
ad69471c | 4966 | /* End of 3 register same size operations. */ |
9ee6e8bb PB |
4967 | } else if (insn & (1 << 4)) { |
4968 | if ((insn & 0x00380080) != 0) { | |
4969 | /* Two registers and shift. */ | |
4970 | op = (insn >> 8) & 0xf; | |
4971 | if (insn & (1 << 7)) { | |
cc13115b PM |
4972 | /* 64-bit shift. */ |
4973 | if (op > 7) { | |
4974 | return 1; | |
4975 | } | |
9ee6e8bb PB |
4976 | size = 3; |
4977 | } else { | |
4978 | size = 2; | |
4979 | while ((insn & (1 << (size + 19))) == 0) | |
4980 | size--; | |
4981 | } | |
4982 | shift = (insn >> 16) & ((1 << (3 + size)) - 1); | |
b90372ad | 4983 | /* To avoid excessive duplication of ops we implement shift |
9ee6e8bb PB |
4984 | by immediate using the variable shift operations. */ |
4985 | if (op < 8) { | |
4986 | /* Shift by immediate: | |
4987 | VSHR, VSRA, VRSHR, VRSRA, VSRI, VSHL, VQSHL, VQSHLU. */ | |
cc13115b PM |
4988 | if (q && ((rd | rm) & 1)) { |
4989 | return 1; | |
4990 | } | |
4991 | if (!u && (op == 4 || op == 6)) { | |
4992 | return 1; | |
4993 | } | |
9ee6e8bb PB |
4994 | /* Right shifts are encoded as N - shift, where N is the |
4995 | element size in bits. */ | |
4996 | if (op <= 4) | |
4997 | shift = shift - (1 << (size + 3)); | |
9ee6e8bb PB |
4998 | if (size == 3) { |
4999 | count = q + 1; | |
5000 | } else { | |
5001 | count = q ? 4: 2; | |
5002 | } | |
5003 | switch (size) { | |
5004 | case 0: | |
5005 | imm = (uint8_t) shift; | |
5006 | imm |= imm << 8; | |
5007 | imm |= imm << 16; | |
5008 | break; | |
5009 | case 1: | |
5010 | imm = (uint16_t) shift; | |
5011 | imm |= imm << 16; | |
5012 | break; | |
5013 | case 2: | |
5014 | case 3: | |
5015 | imm = shift; | |
5016 | break; | |
5017 | default: | |
5018 | abort(); | |
5019 | } | |
5020 | ||
5021 | for (pass = 0; pass < count; pass++) { | |
ad69471c PB |
5022 | if (size == 3) { |
5023 | neon_load_reg64(cpu_V0, rm + pass); | |
5024 | tcg_gen_movi_i64(cpu_V1, imm); | |
5025 | switch (op) { | |
5026 | case 0: /* VSHR */ | |
5027 | case 1: /* VSRA */ | |
5028 | if (u) | |
5029 | gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); | |
9ee6e8bb | 5030 | else |
ad69471c | 5031 | gen_helper_neon_shl_s64(cpu_V0, cpu_V0, cpu_V1); |
9ee6e8bb | 5032 | break; |
ad69471c PB |
5033 | case 2: /* VRSHR */ |
5034 | case 3: /* VRSRA */ | |
5035 | if (u) | |
5036 | gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, cpu_V1); | |
9ee6e8bb | 5037 | else |
ad69471c | 5038 | gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1); |
9ee6e8bb | 5039 | break; |
ad69471c | 5040 | case 4: /* VSRI */ |
ad69471c PB |
5041 | case 5: /* VSHL, VSLI */ |
5042 | gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); | |
5043 | break; | |
0322b26e | 5044 | case 6: /* VQSHLU */ |
02da0b2d PM |
5045 | gen_helper_neon_qshlu_s64(cpu_V0, cpu_env, |
5046 | cpu_V0, cpu_V1); | |
ad69471c | 5047 | break; |
0322b26e PM |
5048 | case 7: /* VQSHL */ |
5049 | if (u) { | |
02da0b2d | 5050 | gen_helper_neon_qshl_u64(cpu_V0, cpu_env, |
0322b26e PM |
5051 | cpu_V0, cpu_V1); |
5052 | } else { | |
02da0b2d | 5053 | gen_helper_neon_qshl_s64(cpu_V0, cpu_env, |
0322b26e PM |
5054 | cpu_V0, cpu_V1); |
5055 | } | |
9ee6e8bb | 5056 | break; |
9ee6e8bb | 5057 | } |
ad69471c PB |
5058 | if (op == 1 || op == 3) { |
5059 | /* Accumulate. */ | |
5371cb81 | 5060 | neon_load_reg64(cpu_V1, rd + pass); |
ad69471c PB |
5061 | tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1); |
5062 | } else if (op == 4 || (op == 5 && u)) { | |
5063 | /* Insert */ | |
923e6509 CL |
5064 | neon_load_reg64(cpu_V1, rd + pass); |
5065 | uint64_t mask; | |
5066 | if (shift < -63 || shift > 63) { | |
5067 | mask = 0; | |
5068 | } else { | |
5069 | if (op == 4) { | |
5070 | mask = 0xffffffffffffffffull >> -shift; | |
5071 | } else { | |
5072 | mask = 0xffffffffffffffffull << shift; | |
5073 | } | |
5074 | } | |
5075 | tcg_gen_andi_i64(cpu_V1, cpu_V1, ~mask); | |
5076 | tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); | |
ad69471c PB |
5077 | } |
5078 | neon_store_reg64(cpu_V0, rd + pass); | |
5079 | } else { /* size < 3 */ | |
5080 | /* Operands in T0 and T1. */ | |
dd8fbd78 | 5081 | tmp = neon_load_reg(rm, pass); |
7d1b0095 | 5082 | tmp2 = tcg_temp_new_i32(); |
dd8fbd78 | 5083 | tcg_gen_movi_i32(tmp2, imm); |
ad69471c PB |
5084 | switch (op) { |
5085 | case 0: /* VSHR */ | |
5086 | case 1: /* VSRA */ | |
5087 | GEN_NEON_INTEGER_OP(shl); | |
5088 | break; | |
5089 | case 2: /* VRSHR */ | |
5090 | case 3: /* VRSRA */ | |
5091 | GEN_NEON_INTEGER_OP(rshl); | |
5092 | break; | |
5093 | case 4: /* VSRI */ | |
ad69471c PB |
5094 | case 5: /* VSHL, VSLI */ |
5095 | switch (size) { | |
dd8fbd78 FN |
5096 | case 0: gen_helper_neon_shl_u8(tmp, tmp, tmp2); break; |
5097 | case 1: gen_helper_neon_shl_u16(tmp, tmp, tmp2); break; | |
5098 | case 2: gen_helper_neon_shl_u32(tmp, tmp, tmp2); break; | |
cc13115b | 5099 | default: abort(); |
ad69471c PB |
5100 | } |
5101 | break; | |
0322b26e | 5102 | case 6: /* VQSHLU */ |
ad69471c | 5103 | switch (size) { |
0322b26e | 5104 | case 0: |
02da0b2d PM |
5105 | gen_helper_neon_qshlu_s8(tmp, cpu_env, |
5106 | tmp, tmp2); | |
0322b26e PM |
5107 | break; |
5108 | case 1: | |
02da0b2d PM |
5109 | gen_helper_neon_qshlu_s16(tmp, cpu_env, |
5110 | tmp, tmp2); | |
0322b26e PM |
5111 | break; |
5112 | case 2: | |
02da0b2d PM |
5113 | gen_helper_neon_qshlu_s32(tmp, cpu_env, |
5114 | tmp, tmp2); | |
0322b26e PM |
5115 | break; |
5116 | default: | |
cc13115b | 5117 | abort(); |
ad69471c PB |
5118 | } |
5119 | break; | |
0322b26e | 5120 | case 7: /* VQSHL */ |
02da0b2d | 5121 | GEN_NEON_INTEGER_OP_ENV(qshl); |
0322b26e | 5122 | break; |
ad69471c | 5123 | } |
7d1b0095 | 5124 | tcg_temp_free_i32(tmp2); |
ad69471c PB |
5125 | |
5126 | if (op == 1 || op == 3) { | |
5127 | /* Accumulate. */ | |
dd8fbd78 | 5128 | tmp2 = neon_load_reg(rd, pass); |
5371cb81 | 5129 | gen_neon_add(size, tmp, tmp2); |
7d1b0095 | 5130 | tcg_temp_free_i32(tmp2); |
ad69471c PB |
5131 | } else if (op == 4 || (op == 5 && u)) { |
5132 | /* Insert */ | |
5133 | switch (size) { | |
5134 | case 0: | |
5135 | if (op == 4) | |
ca9a32e4 | 5136 | mask = 0xff >> -shift; |
ad69471c | 5137 | else |
ca9a32e4 JR |
5138 | mask = (uint8_t)(0xff << shift); |
5139 | mask |= mask << 8; | |
5140 | mask |= mask << 16; | |
ad69471c PB |
5141 | break; |
5142 | case 1: | |
5143 | if (op == 4) | |
ca9a32e4 | 5144 | mask = 0xffff >> -shift; |
ad69471c | 5145 | else |
ca9a32e4 JR |
5146 | mask = (uint16_t)(0xffff << shift); |
5147 | mask |= mask << 16; | |
ad69471c PB |
5148 | break; |
5149 | case 2: | |
ca9a32e4 JR |
5150 | if (shift < -31 || shift > 31) { |
5151 | mask = 0; | |
5152 | } else { | |
5153 | if (op == 4) | |
5154 | mask = 0xffffffffu >> -shift; | |
5155 | else | |
5156 | mask = 0xffffffffu << shift; | |
5157 | } | |
ad69471c PB |
5158 | break; |
5159 | default: | |
5160 | abort(); | |
5161 | } | |
dd8fbd78 | 5162 | tmp2 = neon_load_reg(rd, pass); |
ca9a32e4 JR |
5163 | tcg_gen_andi_i32(tmp, tmp, mask); |
5164 | tcg_gen_andi_i32(tmp2, tmp2, ~mask); | |
dd8fbd78 | 5165 | tcg_gen_or_i32(tmp, tmp, tmp2); |
7d1b0095 | 5166 | tcg_temp_free_i32(tmp2); |
ad69471c | 5167 | } |
dd8fbd78 | 5168 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
5169 | } |
5170 | } /* for pass */ | |
5171 | } else if (op < 10) { | |
ad69471c | 5172 | /* Shift by immediate and narrow: |
9ee6e8bb | 5173 | VSHRN, VRSHRN, VQSHRN, VQRSHRN. */ |
0b36f4cd | 5174 | int input_unsigned = (op == 8) ? !u : u; |
cc13115b PM |
5175 | if (rm & 1) { |
5176 | return 1; | |
5177 | } | |
9ee6e8bb PB |
5178 | shift = shift - (1 << (size + 3)); |
5179 | size++; | |
92cdfaeb | 5180 | if (size == 3) { |
a7812ae4 | 5181 | tmp64 = tcg_const_i64(shift); |
92cdfaeb PM |
5182 | neon_load_reg64(cpu_V0, rm); |
5183 | neon_load_reg64(cpu_V1, rm + 1); | |
5184 | for (pass = 0; pass < 2; pass++) { | |
5185 | TCGv_i64 in; | |
5186 | if (pass == 0) { | |
5187 | in = cpu_V0; | |
5188 | } else { | |
5189 | in = cpu_V1; | |
5190 | } | |
ad69471c | 5191 | if (q) { |
0b36f4cd | 5192 | if (input_unsigned) { |
92cdfaeb | 5193 | gen_helper_neon_rshl_u64(cpu_V0, in, tmp64); |
0b36f4cd | 5194 | } else { |
92cdfaeb | 5195 | gen_helper_neon_rshl_s64(cpu_V0, in, tmp64); |
0b36f4cd | 5196 | } |
ad69471c | 5197 | } else { |
0b36f4cd | 5198 | if (input_unsigned) { |
92cdfaeb | 5199 | gen_helper_neon_shl_u64(cpu_V0, in, tmp64); |
0b36f4cd | 5200 | } else { |
92cdfaeb | 5201 | gen_helper_neon_shl_s64(cpu_V0, in, tmp64); |
0b36f4cd | 5202 | } |
ad69471c | 5203 | } |
7d1b0095 | 5204 | tmp = tcg_temp_new_i32(); |
92cdfaeb PM |
5205 | gen_neon_narrow_op(op == 8, u, size - 1, tmp, cpu_V0); |
5206 | neon_store_reg(rd, pass, tmp); | |
5207 | } /* for pass */ | |
5208 | tcg_temp_free_i64(tmp64); | |
5209 | } else { | |
5210 | if (size == 1) { | |
5211 | imm = (uint16_t)shift; | |
5212 | imm |= imm << 16; | |
2c0262af | 5213 | } else { |
92cdfaeb PM |
5214 | /* size == 2 */ |
5215 | imm = (uint32_t)shift; | |
5216 | } | |
5217 | tmp2 = tcg_const_i32(imm); | |
5218 | tmp4 = neon_load_reg(rm + 1, 0); | |
5219 | tmp5 = neon_load_reg(rm + 1, 1); | |
5220 | for (pass = 0; pass < 2; pass++) { | |
5221 | if (pass == 0) { | |
5222 | tmp = neon_load_reg(rm, 0); | |
5223 | } else { | |
5224 | tmp = tmp4; | |
5225 | } | |
0b36f4cd CL |
5226 | gen_neon_shift_narrow(size, tmp, tmp2, q, |
5227 | input_unsigned); | |
92cdfaeb PM |
5228 | if (pass == 0) { |
5229 | tmp3 = neon_load_reg(rm, 1); | |
5230 | } else { | |
5231 | tmp3 = tmp5; | |
5232 | } | |
0b36f4cd CL |
5233 | gen_neon_shift_narrow(size, tmp3, tmp2, q, |
5234 | input_unsigned); | |
36aa55dc | 5235 | tcg_gen_concat_i32_i64(cpu_V0, tmp, tmp3); |
7d1b0095 PM |
5236 | tcg_temp_free_i32(tmp); |
5237 | tcg_temp_free_i32(tmp3); | |
5238 | tmp = tcg_temp_new_i32(); | |
92cdfaeb PM |
5239 | gen_neon_narrow_op(op == 8, u, size - 1, tmp, cpu_V0); |
5240 | neon_store_reg(rd, pass, tmp); | |
5241 | } /* for pass */ | |
c6067f04 | 5242 | tcg_temp_free_i32(tmp2); |
b75263d6 | 5243 | } |
9ee6e8bb | 5244 | } else if (op == 10) { |
cc13115b PM |
5245 | /* VSHLL, VMOVL */ |
5246 | if (q || (rd & 1)) { | |
9ee6e8bb | 5247 | return 1; |
cc13115b | 5248 | } |
ad69471c PB |
5249 | tmp = neon_load_reg(rm, 0); |
5250 | tmp2 = neon_load_reg(rm, 1); | |
9ee6e8bb | 5251 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
5252 | if (pass == 1) |
5253 | tmp = tmp2; | |
5254 | ||
5255 | gen_neon_widen(cpu_V0, tmp, size, u); | |
9ee6e8bb | 5256 | |
9ee6e8bb PB |
5257 | if (shift != 0) { |
5258 | /* The shift is less than the width of the source | |
ad69471c PB |
5259 | type, so we can just shift the whole register. */ |
5260 | tcg_gen_shli_i64(cpu_V0, cpu_V0, shift); | |
acdf01ef CL |
5261 | /* Widen the result of shift: we need to clear |
5262 | * the potential overflow bits resulting from | |
5263 | * left bits of the narrow input appearing as | |
5264 | * right bits of left the neighbour narrow | |
5265 | * input. */ | |
ad69471c PB |
5266 | if (size < 2 || !u) { |
5267 | uint64_t imm64; | |
5268 | if (size == 0) { | |
5269 | imm = (0xffu >> (8 - shift)); | |
5270 | imm |= imm << 16; | |
acdf01ef | 5271 | } else if (size == 1) { |
ad69471c | 5272 | imm = 0xffff >> (16 - shift); |
acdf01ef CL |
5273 | } else { |
5274 | /* size == 2 */ | |
5275 | imm = 0xffffffff >> (32 - shift); | |
5276 | } | |
5277 | if (size < 2) { | |
5278 | imm64 = imm | (((uint64_t)imm) << 32); | |
5279 | } else { | |
5280 | imm64 = imm; | |
9ee6e8bb | 5281 | } |
acdf01ef | 5282 | tcg_gen_andi_i64(cpu_V0, cpu_V0, ~imm64); |
9ee6e8bb PB |
5283 | } |
5284 | } | |
ad69471c | 5285 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb | 5286 | } |
f73534a5 | 5287 | } else if (op >= 14) { |
9ee6e8bb | 5288 | /* VCVT fixed-point. */ |
cc13115b PM |
5289 | if (!(insn & (1 << 21)) || (q && ((rd | rm) & 1))) { |
5290 | return 1; | |
5291 | } | |
f73534a5 PM |
5292 | /* We have already masked out the must-be-1 top bit of imm6, |
5293 | * hence this 32-shift where the ARM ARM has 64-imm6. | |
5294 | */ | |
5295 | shift = 32 - shift; | |
9ee6e8bb | 5296 | for (pass = 0; pass < (q ? 4 : 2); pass++) { |
4373f3ce | 5297 | tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, pass)); |
f73534a5 | 5298 | if (!(op & 1)) { |
9ee6e8bb | 5299 | if (u) |
5500b06c | 5300 | gen_vfp_ulto(0, shift, 1); |
9ee6e8bb | 5301 | else |
5500b06c | 5302 | gen_vfp_slto(0, shift, 1); |
9ee6e8bb PB |
5303 | } else { |
5304 | if (u) | |
5500b06c | 5305 | gen_vfp_toul(0, shift, 1); |
9ee6e8bb | 5306 | else |
5500b06c | 5307 | gen_vfp_tosl(0, shift, 1); |
2c0262af | 5308 | } |
4373f3ce | 5309 | tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, pass)); |
2c0262af FB |
5310 | } |
5311 | } else { | |
9ee6e8bb PB |
5312 | return 1; |
5313 | } | |
5314 | } else { /* (insn & 0x00380080) == 0 */ | |
5315 | int invert; | |
7d80fee5 PM |
5316 | if (q && (rd & 1)) { |
5317 | return 1; | |
5318 | } | |
9ee6e8bb PB |
5319 | |
5320 | op = (insn >> 8) & 0xf; | |
5321 | /* One register and immediate. */ | |
5322 | imm = (u << 7) | ((insn >> 12) & 0x70) | (insn & 0xf); | |
5323 | invert = (insn & (1 << 5)) != 0; | |
7d80fee5 PM |
5324 | /* Note that op = 2,3,4,5,6,7,10,11,12,13 imm=0 is UNPREDICTABLE. |
5325 | * We choose to not special-case this and will behave as if a | |
5326 | * valid constant encoding of 0 had been given. | |
5327 | */ | |
9ee6e8bb PB |
5328 | switch (op) { |
5329 | case 0: case 1: | |
5330 | /* no-op */ | |
5331 | break; | |
5332 | case 2: case 3: | |
5333 | imm <<= 8; | |
5334 | break; | |
5335 | case 4: case 5: | |
5336 | imm <<= 16; | |
5337 | break; | |
5338 | case 6: case 7: | |
5339 | imm <<= 24; | |
5340 | break; | |
5341 | case 8: case 9: | |
5342 | imm |= imm << 16; | |
5343 | break; | |
5344 | case 10: case 11: | |
5345 | imm = (imm << 8) | (imm << 24); | |
5346 | break; | |
5347 | case 12: | |
8e31209e | 5348 | imm = (imm << 8) | 0xff; |
9ee6e8bb PB |
5349 | break; |
5350 | case 13: | |
5351 | imm = (imm << 16) | 0xffff; | |
5352 | break; | |
5353 | case 14: | |
5354 | imm |= (imm << 8) | (imm << 16) | (imm << 24); | |
5355 | if (invert) | |
5356 | imm = ~imm; | |
5357 | break; | |
5358 | case 15: | |
7d80fee5 PM |
5359 | if (invert) { |
5360 | return 1; | |
5361 | } | |
9ee6e8bb PB |
5362 | imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19) |
5363 | | ((imm & 0x40) ? (0x1f << 25) : (1 << 30)); | |
5364 | break; | |
5365 | } | |
5366 | if (invert) | |
5367 | imm = ~imm; | |
5368 | ||
9ee6e8bb PB |
5369 | for (pass = 0; pass < (q ? 4 : 2); pass++) { |
5370 | if (op & 1 && op < 12) { | |
ad69471c | 5371 | tmp = neon_load_reg(rd, pass); |
9ee6e8bb PB |
5372 | if (invert) { |
5373 | /* The immediate value has already been inverted, so | |
5374 | BIC becomes AND. */ | |
ad69471c | 5375 | tcg_gen_andi_i32(tmp, tmp, imm); |
9ee6e8bb | 5376 | } else { |
ad69471c | 5377 | tcg_gen_ori_i32(tmp, tmp, imm); |
9ee6e8bb | 5378 | } |
9ee6e8bb | 5379 | } else { |
ad69471c | 5380 | /* VMOV, VMVN. */ |
7d1b0095 | 5381 | tmp = tcg_temp_new_i32(); |
9ee6e8bb | 5382 | if (op == 14 && invert) { |
a5a14945 | 5383 | int n; |
ad69471c PB |
5384 | uint32_t val; |
5385 | val = 0; | |
9ee6e8bb PB |
5386 | for (n = 0; n < 4; n++) { |
5387 | if (imm & (1 << (n + (pass & 1) * 4))) | |
ad69471c | 5388 | val |= 0xff << (n * 8); |
9ee6e8bb | 5389 | } |
ad69471c PB |
5390 | tcg_gen_movi_i32(tmp, val); |
5391 | } else { | |
5392 | tcg_gen_movi_i32(tmp, imm); | |
9ee6e8bb | 5393 | } |
9ee6e8bb | 5394 | } |
ad69471c | 5395 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
5396 | } |
5397 | } | |
e4b3861d | 5398 | } else { /* (insn & 0x00800010 == 0x00800000) */ |
9ee6e8bb PB |
5399 | if (size != 3) { |
5400 | op = (insn >> 8) & 0xf; | |
5401 | if ((insn & (1 << 6)) == 0) { | |
5402 | /* Three registers of different lengths. */ | |
5403 | int src1_wide; | |
5404 | int src2_wide; | |
5405 | int prewiden; | |
695272dc PM |
5406 | /* undefreq: bit 0 : UNDEF if size != 0 |
5407 | * bit 1 : UNDEF if size == 0 | |
5408 | * bit 2 : UNDEF if U == 1 | |
5409 | * Note that [1:0] set implies 'always UNDEF' | |
5410 | */ | |
5411 | int undefreq; | |
5412 | /* prewiden, src1_wide, src2_wide, undefreq */ | |
5413 | static const int neon_3reg_wide[16][4] = { | |
5414 | {1, 0, 0, 0}, /* VADDL */ | |
5415 | {1, 1, 0, 0}, /* VADDW */ | |
5416 | {1, 0, 0, 0}, /* VSUBL */ | |
5417 | {1, 1, 0, 0}, /* VSUBW */ | |
5418 | {0, 1, 1, 0}, /* VADDHN */ | |
5419 | {0, 0, 0, 0}, /* VABAL */ | |
5420 | {0, 1, 1, 0}, /* VSUBHN */ | |
5421 | {0, 0, 0, 0}, /* VABDL */ | |
5422 | {0, 0, 0, 0}, /* VMLAL */ | |
5423 | {0, 0, 0, 6}, /* VQDMLAL */ | |
5424 | {0, 0, 0, 0}, /* VMLSL */ | |
5425 | {0, 0, 0, 6}, /* VQDMLSL */ | |
5426 | {0, 0, 0, 0}, /* Integer VMULL */ | |
5427 | {0, 0, 0, 2}, /* VQDMULL */ | |
5428 | {0, 0, 0, 5}, /* Polynomial VMULL */ | |
5429 | {0, 0, 0, 3}, /* Reserved: always UNDEF */ | |
9ee6e8bb PB |
5430 | }; |
5431 | ||
5432 | prewiden = neon_3reg_wide[op][0]; | |
5433 | src1_wide = neon_3reg_wide[op][1]; | |
5434 | src2_wide = neon_3reg_wide[op][2]; | |
695272dc | 5435 | undefreq = neon_3reg_wide[op][3]; |
9ee6e8bb | 5436 | |
695272dc PM |
5437 | if (((undefreq & 1) && (size != 0)) || |
5438 | ((undefreq & 2) && (size == 0)) || | |
5439 | ((undefreq & 4) && u)) { | |
5440 | return 1; | |
5441 | } | |
5442 | if ((src1_wide && (rn & 1)) || | |
5443 | (src2_wide && (rm & 1)) || | |
5444 | (!src2_wide && (rd & 1))) { | |
ad69471c | 5445 | return 1; |
695272dc | 5446 | } |
ad69471c | 5447 | |
9ee6e8bb PB |
5448 | /* Avoid overlapping operands. Wide source operands are |
5449 | always aligned so will never overlap with wide | |
5450 | destinations in problematic ways. */ | |
8f8e3aa4 | 5451 | if (rd == rm && !src2_wide) { |
dd8fbd78 FN |
5452 | tmp = neon_load_reg(rm, 1); |
5453 | neon_store_scratch(2, tmp); | |
8f8e3aa4 | 5454 | } else if (rd == rn && !src1_wide) { |
dd8fbd78 FN |
5455 | tmp = neon_load_reg(rn, 1); |
5456 | neon_store_scratch(2, tmp); | |
9ee6e8bb | 5457 | } |
39d5492a | 5458 | TCGV_UNUSED_I32(tmp3); |
9ee6e8bb | 5459 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
5460 | if (src1_wide) { |
5461 | neon_load_reg64(cpu_V0, rn + pass); | |
39d5492a | 5462 | TCGV_UNUSED_I32(tmp); |
9ee6e8bb | 5463 | } else { |
ad69471c | 5464 | if (pass == 1 && rd == rn) { |
dd8fbd78 | 5465 | tmp = neon_load_scratch(2); |
9ee6e8bb | 5466 | } else { |
ad69471c PB |
5467 | tmp = neon_load_reg(rn, pass); |
5468 | } | |
5469 | if (prewiden) { | |
5470 | gen_neon_widen(cpu_V0, tmp, size, u); | |
9ee6e8bb PB |
5471 | } |
5472 | } | |
ad69471c PB |
5473 | if (src2_wide) { |
5474 | neon_load_reg64(cpu_V1, rm + pass); | |
39d5492a | 5475 | TCGV_UNUSED_I32(tmp2); |
9ee6e8bb | 5476 | } else { |
ad69471c | 5477 | if (pass == 1 && rd == rm) { |
dd8fbd78 | 5478 | tmp2 = neon_load_scratch(2); |
9ee6e8bb | 5479 | } else { |
ad69471c PB |
5480 | tmp2 = neon_load_reg(rm, pass); |
5481 | } | |
5482 | if (prewiden) { | |
5483 | gen_neon_widen(cpu_V1, tmp2, size, u); | |
9ee6e8bb | 5484 | } |
9ee6e8bb PB |
5485 | } |
5486 | switch (op) { | |
5487 | case 0: case 1: case 4: /* VADDL, VADDW, VADDHN, VRADDHN */ | |
ad69471c | 5488 | gen_neon_addl(size); |
9ee6e8bb | 5489 | break; |
79b0e534 | 5490 | case 2: case 3: case 6: /* VSUBL, VSUBW, VSUBHN, VRSUBHN */ |
ad69471c | 5491 | gen_neon_subl(size); |
9ee6e8bb PB |
5492 | break; |
5493 | case 5: case 7: /* VABAL, VABDL */ | |
5494 | switch ((size << 1) | u) { | |
ad69471c PB |
5495 | case 0: |
5496 | gen_helper_neon_abdl_s16(cpu_V0, tmp, tmp2); | |
5497 | break; | |
5498 | case 1: | |
5499 | gen_helper_neon_abdl_u16(cpu_V0, tmp, tmp2); | |
5500 | break; | |
5501 | case 2: | |
5502 | gen_helper_neon_abdl_s32(cpu_V0, tmp, tmp2); | |
5503 | break; | |
5504 | case 3: | |
5505 | gen_helper_neon_abdl_u32(cpu_V0, tmp, tmp2); | |
5506 | break; | |
5507 | case 4: | |
5508 | gen_helper_neon_abdl_s64(cpu_V0, tmp, tmp2); | |
5509 | break; | |
5510 | case 5: | |
5511 | gen_helper_neon_abdl_u64(cpu_V0, tmp, tmp2); | |
5512 | break; | |
9ee6e8bb PB |
5513 | default: abort(); |
5514 | } | |
7d1b0095 PM |
5515 | tcg_temp_free_i32(tmp2); |
5516 | tcg_temp_free_i32(tmp); | |
9ee6e8bb PB |
5517 | break; |
5518 | case 8: case 9: case 10: case 11: case 12: case 13: | |
5519 | /* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */ | |
ad69471c | 5520 | gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
9ee6e8bb PB |
5521 | break; |
5522 | case 14: /* Polynomial VMULL */ | |
e5ca24cb | 5523 | gen_helper_neon_mull_p8(cpu_V0, tmp, tmp2); |
7d1b0095 PM |
5524 | tcg_temp_free_i32(tmp2); |
5525 | tcg_temp_free_i32(tmp); | |
e5ca24cb | 5526 | break; |
695272dc PM |
5527 | default: /* 15 is RESERVED: caught earlier */ |
5528 | abort(); | |
9ee6e8bb | 5529 | } |
ebcd88ce PM |
5530 | if (op == 13) { |
5531 | /* VQDMULL */ | |
5532 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); | |
5533 | neon_store_reg64(cpu_V0, rd + pass); | |
5534 | } else if (op == 5 || (op >= 8 && op <= 11)) { | |
9ee6e8bb | 5535 | /* Accumulate. */ |
ebcd88ce | 5536 | neon_load_reg64(cpu_V1, rd + pass); |
9ee6e8bb | 5537 | switch (op) { |
4dc064e6 PM |
5538 | case 10: /* VMLSL */ |
5539 | gen_neon_negl(cpu_V0, size); | |
5540 | /* Fall through */ | |
5541 | case 5: case 8: /* VABAL, VMLAL */ | |
ad69471c | 5542 | gen_neon_addl(size); |
9ee6e8bb PB |
5543 | break; |
5544 | case 9: case 11: /* VQDMLAL, VQDMLSL */ | |
ad69471c | 5545 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
4dc064e6 PM |
5546 | if (op == 11) { |
5547 | gen_neon_negl(cpu_V0, size); | |
5548 | } | |
ad69471c PB |
5549 | gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
5550 | break; | |
9ee6e8bb PB |
5551 | default: |
5552 | abort(); | |
5553 | } | |
ad69471c | 5554 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
5555 | } else if (op == 4 || op == 6) { |
5556 | /* Narrowing operation. */ | |
7d1b0095 | 5557 | tmp = tcg_temp_new_i32(); |
79b0e534 | 5558 | if (!u) { |
9ee6e8bb | 5559 | switch (size) { |
ad69471c PB |
5560 | case 0: |
5561 | gen_helper_neon_narrow_high_u8(tmp, cpu_V0); | |
5562 | break; | |
5563 | case 1: | |
5564 | gen_helper_neon_narrow_high_u16(tmp, cpu_V0); | |
5565 | break; | |
5566 | case 2: | |
5567 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); | |
5568 | tcg_gen_trunc_i64_i32(tmp, cpu_V0); | |
5569 | break; | |
9ee6e8bb PB |
5570 | default: abort(); |
5571 | } | |
5572 | } else { | |
5573 | switch (size) { | |
ad69471c PB |
5574 | case 0: |
5575 | gen_helper_neon_narrow_round_high_u8(tmp, cpu_V0); | |
5576 | break; | |
5577 | case 1: | |
5578 | gen_helper_neon_narrow_round_high_u16(tmp, cpu_V0); | |
5579 | break; | |
5580 | case 2: | |
5581 | tcg_gen_addi_i64(cpu_V0, cpu_V0, 1u << 31); | |
5582 | tcg_gen_shri_i64(cpu_V0, cpu_V0, 32); | |
5583 | tcg_gen_trunc_i64_i32(tmp, cpu_V0); | |
5584 | break; | |
9ee6e8bb PB |
5585 | default: abort(); |
5586 | } | |
5587 | } | |
ad69471c PB |
5588 | if (pass == 0) { |
5589 | tmp3 = tmp; | |
5590 | } else { | |
5591 | neon_store_reg(rd, 0, tmp3); | |
5592 | neon_store_reg(rd, 1, tmp); | |
5593 | } | |
9ee6e8bb PB |
5594 | } else { |
5595 | /* Write back the result. */ | |
ad69471c | 5596 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
5597 | } |
5598 | } | |
5599 | } else { | |
3e3326df PM |
5600 | /* Two registers and a scalar. NB that for ops of this form |
5601 | * the ARM ARM labels bit 24 as Q, but it is in our variable | |
5602 | * 'u', not 'q'. | |
5603 | */ | |
5604 | if (size == 0) { | |
5605 | return 1; | |
5606 | } | |
9ee6e8bb | 5607 | switch (op) { |
9ee6e8bb | 5608 | case 1: /* Float VMLA scalar */ |
9ee6e8bb | 5609 | case 5: /* Floating point VMLS scalar */ |
9ee6e8bb | 5610 | case 9: /* Floating point VMUL scalar */ |
3e3326df PM |
5611 | if (size == 1) { |
5612 | return 1; | |
5613 | } | |
5614 | /* fall through */ | |
5615 | case 0: /* Integer VMLA scalar */ | |
5616 | case 4: /* Integer VMLS scalar */ | |
5617 | case 8: /* Integer VMUL scalar */ | |
9ee6e8bb PB |
5618 | case 12: /* VQDMULH scalar */ |
5619 | case 13: /* VQRDMULH scalar */ | |
3e3326df PM |
5620 | if (u && ((rd | rn) & 1)) { |
5621 | return 1; | |
5622 | } | |
dd8fbd78 FN |
5623 | tmp = neon_get_scalar(size, rm); |
5624 | neon_store_scratch(0, tmp); | |
9ee6e8bb | 5625 | for (pass = 0; pass < (u ? 4 : 2); pass++) { |
dd8fbd78 FN |
5626 | tmp = neon_load_scratch(0); |
5627 | tmp2 = neon_load_reg(rn, pass); | |
9ee6e8bb PB |
5628 | if (op == 12) { |
5629 | if (size == 1) { | |
02da0b2d | 5630 | gen_helper_neon_qdmulh_s16(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 5631 | } else { |
02da0b2d | 5632 | gen_helper_neon_qdmulh_s32(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb PB |
5633 | } |
5634 | } else if (op == 13) { | |
5635 | if (size == 1) { | |
02da0b2d | 5636 | gen_helper_neon_qrdmulh_s16(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 5637 | } else { |
02da0b2d | 5638 | gen_helper_neon_qrdmulh_s32(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb PB |
5639 | } |
5640 | } else if (op & 1) { | |
aa47cfdd PM |
5641 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); |
5642 | gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus); | |
5643 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb PB |
5644 | } else { |
5645 | switch (size) { | |
dd8fbd78 FN |
5646 | case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break; |
5647 | case 1: gen_helper_neon_mul_u16(tmp, tmp, tmp2); break; | |
5648 | case 2: tcg_gen_mul_i32(tmp, tmp, tmp2); break; | |
3e3326df | 5649 | default: abort(); |
9ee6e8bb PB |
5650 | } |
5651 | } | |
7d1b0095 | 5652 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
5653 | if (op < 8) { |
5654 | /* Accumulate. */ | |
dd8fbd78 | 5655 | tmp2 = neon_load_reg(rd, pass); |
9ee6e8bb PB |
5656 | switch (op) { |
5657 | case 0: | |
dd8fbd78 | 5658 | gen_neon_add(size, tmp, tmp2); |
9ee6e8bb PB |
5659 | break; |
5660 | case 1: | |
aa47cfdd PM |
5661 | { |
5662 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
5663 | gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus); | |
5664 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 5665 | break; |
aa47cfdd | 5666 | } |
9ee6e8bb | 5667 | case 4: |
dd8fbd78 | 5668 | gen_neon_rsb(size, tmp, tmp2); |
9ee6e8bb PB |
5669 | break; |
5670 | case 5: | |
aa47cfdd PM |
5671 | { |
5672 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
5673 | gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus); | |
5674 | tcg_temp_free_ptr(fpstatus); | |
9ee6e8bb | 5675 | break; |
aa47cfdd | 5676 | } |
9ee6e8bb PB |
5677 | default: |
5678 | abort(); | |
5679 | } | |
7d1b0095 | 5680 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 5681 | } |
dd8fbd78 | 5682 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
5683 | } |
5684 | break; | |
9ee6e8bb | 5685 | case 3: /* VQDMLAL scalar */ |
9ee6e8bb | 5686 | case 7: /* VQDMLSL scalar */ |
9ee6e8bb | 5687 | case 11: /* VQDMULL scalar */ |
3e3326df | 5688 | if (u == 1) { |
ad69471c | 5689 | return 1; |
3e3326df PM |
5690 | } |
5691 | /* fall through */ | |
5692 | case 2: /* VMLAL sclar */ | |
5693 | case 6: /* VMLSL scalar */ | |
5694 | case 10: /* VMULL scalar */ | |
5695 | if (rd & 1) { | |
5696 | return 1; | |
5697 | } | |
dd8fbd78 | 5698 | tmp2 = neon_get_scalar(size, rm); |
c6067f04 CL |
5699 | /* We need a copy of tmp2 because gen_neon_mull |
5700 | * deletes it during pass 0. */ | |
7d1b0095 | 5701 | tmp4 = tcg_temp_new_i32(); |
c6067f04 | 5702 | tcg_gen_mov_i32(tmp4, tmp2); |
dd8fbd78 | 5703 | tmp3 = neon_load_reg(rn, 1); |
ad69471c | 5704 | |
9ee6e8bb | 5705 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
5706 | if (pass == 0) { |
5707 | tmp = neon_load_reg(rn, 0); | |
9ee6e8bb | 5708 | } else { |
dd8fbd78 | 5709 | tmp = tmp3; |
c6067f04 | 5710 | tmp2 = tmp4; |
9ee6e8bb | 5711 | } |
ad69471c | 5712 | gen_neon_mull(cpu_V0, tmp, tmp2, size, u); |
ad69471c PB |
5713 | if (op != 11) { |
5714 | neon_load_reg64(cpu_V1, rd + pass); | |
9ee6e8bb | 5715 | } |
9ee6e8bb | 5716 | switch (op) { |
4dc064e6 PM |
5717 | case 6: |
5718 | gen_neon_negl(cpu_V0, size); | |
5719 | /* Fall through */ | |
5720 | case 2: | |
ad69471c | 5721 | gen_neon_addl(size); |
9ee6e8bb PB |
5722 | break; |
5723 | case 3: case 7: | |
ad69471c | 5724 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
4dc064e6 PM |
5725 | if (op == 7) { |
5726 | gen_neon_negl(cpu_V0, size); | |
5727 | } | |
ad69471c | 5728 | gen_neon_addl_saturate(cpu_V0, cpu_V1, size); |
9ee6e8bb PB |
5729 | break; |
5730 | case 10: | |
5731 | /* no-op */ | |
5732 | break; | |
5733 | case 11: | |
ad69471c | 5734 | gen_neon_addl_saturate(cpu_V0, cpu_V0, size); |
9ee6e8bb PB |
5735 | break; |
5736 | default: | |
5737 | abort(); | |
5738 | } | |
ad69471c | 5739 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb | 5740 | } |
dd8fbd78 | 5741 | |
dd8fbd78 | 5742 | |
9ee6e8bb PB |
5743 | break; |
5744 | default: /* 14 and 15 are RESERVED */ | |
5745 | return 1; | |
5746 | } | |
5747 | } | |
5748 | } else { /* size == 3 */ | |
5749 | if (!u) { | |
5750 | /* Extract. */ | |
9ee6e8bb | 5751 | imm = (insn >> 8) & 0xf; |
ad69471c PB |
5752 | |
5753 | if (imm > 7 && !q) | |
5754 | return 1; | |
5755 | ||
52579ea1 PM |
5756 | if (q && ((rd | rn | rm) & 1)) { |
5757 | return 1; | |
5758 | } | |
5759 | ||
ad69471c PB |
5760 | if (imm == 0) { |
5761 | neon_load_reg64(cpu_V0, rn); | |
5762 | if (q) { | |
5763 | neon_load_reg64(cpu_V1, rn + 1); | |
9ee6e8bb | 5764 | } |
ad69471c PB |
5765 | } else if (imm == 8) { |
5766 | neon_load_reg64(cpu_V0, rn + 1); | |
5767 | if (q) { | |
5768 | neon_load_reg64(cpu_V1, rm); | |
9ee6e8bb | 5769 | } |
ad69471c | 5770 | } else if (q) { |
a7812ae4 | 5771 | tmp64 = tcg_temp_new_i64(); |
ad69471c PB |
5772 | if (imm < 8) { |
5773 | neon_load_reg64(cpu_V0, rn); | |
a7812ae4 | 5774 | neon_load_reg64(tmp64, rn + 1); |
ad69471c PB |
5775 | } else { |
5776 | neon_load_reg64(cpu_V0, rn + 1); | |
a7812ae4 | 5777 | neon_load_reg64(tmp64, rm); |
ad69471c PB |
5778 | } |
5779 | tcg_gen_shri_i64(cpu_V0, cpu_V0, (imm & 7) * 8); | |
a7812ae4 | 5780 | tcg_gen_shli_i64(cpu_V1, tmp64, 64 - ((imm & 7) * 8)); |
ad69471c PB |
5781 | tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
5782 | if (imm < 8) { | |
5783 | neon_load_reg64(cpu_V1, rm); | |
9ee6e8bb | 5784 | } else { |
ad69471c PB |
5785 | neon_load_reg64(cpu_V1, rm + 1); |
5786 | imm -= 8; | |
9ee6e8bb | 5787 | } |
ad69471c | 5788 | tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
a7812ae4 PB |
5789 | tcg_gen_shri_i64(tmp64, tmp64, imm * 8); |
5790 | tcg_gen_or_i64(cpu_V1, cpu_V1, tmp64); | |
b75263d6 | 5791 | tcg_temp_free_i64(tmp64); |
ad69471c | 5792 | } else { |
a7812ae4 | 5793 | /* BUGFIX */ |
ad69471c | 5794 | neon_load_reg64(cpu_V0, rn); |
a7812ae4 | 5795 | tcg_gen_shri_i64(cpu_V0, cpu_V0, imm * 8); |
ad69471c | 5796 | neon_load_reg64(cpu_V1, rm); |
a7812ae4 | 5797 | tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8)); |
ad69471c PB |
5798 | tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1); |
5799 | } | |
5800 | neon_store_reg64(cpu_V0, rd); | |
5801 | if (q) { | |
5802 | neon_store_reg64(cpu_V1, rd + 1); | |
9ee6e8bb PB |
5803 | } |
5804 | } else if ((insn & (1 << 11)) == 0) { | |
5805 | /* Two register misc. */ | |
5806 | op = ((insn >> 12) & 0x30) | ((insn >> 7) & 0xf); | |
5807 | size = (insn >> 18) & 3; | |
600b828c PM |
5808 | /* UNDEF for unknown op values and bad op-size combinations */ |
5809 | if ((neon_2rm_sizes[op] & (1 << size)) == 0) { | |
5810 | return 1; | |
5811 | } | |
fc2a9b37 PM |
5812 | if ((op != NEON_2RM_VMOVN && op != NEON_2RM_VQMOVN) && |
5813 | q && ((rm | rd) & 1)) { | |
5814 | return 1; | |
5815 | } | |
9ee6e8bb | 5816 | switch (op) { |
600b828c | 5817 | case NEON_2RM_VREV64: |
9ee6e8bb | 5818 | for (pass = 0; pass < (q ? 2 : 1); pass++) { |
dd8fbd78 FN |
5819 | tmp = neon_load_reg(rm, pass * 2); |
5820 | tmp2 = neon_load_reg(rm, pass * 2 + 1); | |
9ee6e8bb | 5821 | switch (size) { |
dd8fbd78 FN |
5822 | case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
5823 | case 1: gen_swap_half(tmp); break; | |
9ee6e8bb PB |
5824 | case 2: /* no-op */ break; |
5825 | default: abort(); | |
5826 | } | |
dd8fbd78 | 5827 | neon_store_reg(rd, pass * 2 + 1, tmp); |
9ee6e8bb | 5828 | if (size == 2) { |
dd8fbd78 | 5829 | neon_store_reg(rd, pass * 2, tmp2); |
9ee6e8bb | 5830 | } else { |
9ee6e8bb | 5831 | switch (size) { |
dd8fbd78 FN |
5832 | case 0: tcg_gen_bswap32_i32(tmp2, tmp2); break; |
5833 | case 1: gen_swap_half(tmp2); break; | |
9ee6e8bb PB |
5834 | default: abort(); |
5835 | } | |
dd8fbd78 | 5836 | neon_store_reg(rd, pass * 2, tmp2); |
9ee6e8bb PB |
5837 | } |
5838 | } | |
5839 | break; | |
600b828c PM |
5840 | case NEON_2RM_VPADDL: case NEON_2RM_VPADDL_U: |
5841 | case NEON_2RM_VPADAL: case NEON_2RM_VPADAL_U: | |
ad69471c PB |
5842 | for (pass = 0; pass < q + 1; pass++) { |
5843 | tmp = neon_load_reg(rm, pass * 2); | |
5844 | gen_neon_widen(cpu_V0, tmp, size, op & 1); | |
5845 | tmp = neon_load_reg(rm, pass * 2 + 1); | |
5846 | gen_neon_widen(cpu_V1, tmp, size, op & 1); | |
5847 | switch (size) { | |
5848 | case 0: gen_helper_neon_paddl_u16(CPU_V001); break; | |
5849 | case 1: gen_helper_neon_paddl_u32(CPU_V001); break; | |
5850 | case 2: tcg_gen_add_i64(CPU_V001); break; | |
5851 | default: abort(); | |
5852 | } | |
600b828c | 5853 | if (op >= NEON_2RM_VPADAL) { |
9ee6e8bb | 5854 | /* Accumulate. */ |
ad69471c PB |
5855 | neon_load_reg64(cpu_V1, rd + pass); |
5856 | gen_neon_addl(size); | |
9ee6e8bb | 5857 | } |
ad69471c | 5858 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
5859 | } |
5860 | break; | |
600b828c | 5861 | case NEON_2RM_VTRN: |
9ee6e8bb | 5862 | if (size == 2) { |
a5a14945 | 5863 | int n; |
9ee6e8bb | 5864 | for (n = 0; n < (q ? 4 : 2); n += 2) { |
dd8fbd78 FN |
5865 | tmp = neon_load_reg(rm, n); |
5866 | tmp2 = neon_load_reg(rd, n + 1); | |
5867 | neon_store_reg(rm, n, tmp2); | |
5868 | neon_store_reg(rd, n + 1, tmp); | |
9ee6e8bb PB |
5869 | } |
5870 | } else { | |
5871 | goto elementwise; | |
5872 | } | |
5873 | break; | |
600b828c | 5874 | case NEON_2RM_VUZP: |
02acedf9 | 5875 | if (gen_neon_unzip(rd, rm, size, q)) { |
9ee6e8bb | 5876 | return 1; |
9ee6e8bb PB |
5877 | } |
5878 | break; | |
600b828c | 5879 | case NEON_2RM_VZIP: |
d68a6f3a | 5880 | if (gen_neon_zip(rd, rm, size, q)) { |
9ee6e8bb | 5881 | return 1; |
9ee6e8bb PB |
5882 | } |
5883 | break; | |
600b828c PM |
5884 | case NEON_2RM_VMOVN: case NEON_2RM_VQMOVN: |
5885 | /* also VQMOVUN; op field and mnemonics don't line up */ | |
fc2a9b37 PM |
5886 | if (rm & 1) { |
5887 | return 1; | |
5888 | } | |
39d5492a | 5889 | TCGV_UNUSED_I32(tmp2); |
9ee6e8bb | 5890 | for (pass = 0; pass < 2; pass++) { |
ad69471c | 5891 | neon_load_reg64(cpu_V0, rm + pass); |
7d1b0095 | 5892 | tmp = tcg_temp_new_i32(); |
600b828c PM |
5893 | gen_neon_narrow_op(op == NEON_2RM_VMOVN, q, size, |
5894 | tmp, cpu_V0); | |
ad69471c PB |
5895 | if (pass == 0) { |
5896 | tmp2 = tmp; | |
5897 | } else { | |
5898 | neon_store_reg(rd, 0, tmp2); | |
5899 | neon_store_reg(rd, 1, tmp); | |
9ee6e8bb | 5900 | } |
9ee6e8bb PB |
5901 | } |
5902 | break; | |
600b828c | 5903 | case NEON_2RM_VSHLL: |
fc2a9b37 | 5904 | if (q || (rd & 1)) { |
9ee6e8bb | 5905 | return 1; |
600b828c | 5906 | } |
ad69471c PB |
5907 | tmp = neon_load_reg(rm, 0); |
5908 | tmp2 = neon_load_reg(rm, 1); | |
9ee6e8bb | 5909 | for (pass = 0; pass < 2; pass++) { |
ad69471c PB |
5910 | if (pass == 1) |
5911 | tmp = tmp2; | |
5912 | gen_neon_widen(cpu_V0, tmp, size, 1); | |
30d11a2a | 5913 | tcg_gen_shli_i64(cpu_V0, cpu_V0, 8 << size); |
ad69471c | 5914 | neon_store_reg64(cpu_V0, rd + pass); |
9ee6e8bb PB |
5915 | } |
5916 | break; | |
600b828c | 5917 | case NEON_2RM_VCVT_F16_F32: |
fc2a9b37 PM |
5918 | if (!arm_feature(env, ARM_FEATURE_VFP_FP16) || |
5919 | q || (rm & 1)) { | |
5920 | return 1; | |
5921 | } | |
7d1b0095 PM |
5922 | tmp = tcg_temp_new_i32(); |
5923 | tmp2 = tcg_temp_new_i32(); | |
60011498 | 5924 | tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 0)); |
2d981da7 | 5925 | gen_helper_neon_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
60011498 | 5926 | tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 1)); |
2d981da7 | 5927 | gen_helper_neon_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env); |
60011498 PB |
5928 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
5929 | tcg_gen_or_i32(tmp2, tmp2, tmp); | |
5930 | tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 2)); | |
2d981da7 | 5931 | gen_helper_neon_fcvt_f32_to_f16(tmp, cpu_F0s, cpu_env); |
60011498 PB |
5932 | tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, 3)); |
5933 | neon_store_reg(rd, 0, tmp2); | |
7d1b0095 | 5934 | tmp2 = tcg_temp_new_i32(); |
2d981da7 | 5935 | gen_helper_neon_fcvt_f32_to_f16(tmp2, cpu_F0s, cpu_env); |
60011498 PB |
5936 | tcg_gen_shli_i32(tmp2, tmp2, 16); |
5937 | tcg_gen_or_i32(tmp2, tmp2, tmp); | |
5938 | neon_store_reg(rd, 1, tmp2); | |
7d1b0095 | 5939 | tcg_temp_free_i32(tmp); |
60011498 | 5940 | break; |
600b828c | 5941 | case NEON_2RM_VCVT_F32_F16: |
fc2a9b37 PM |
5942 | if (!arm_feature(env, ARM_FEATURE_VFP_FP16) || |
5943 | q || (rd & 1)) { | |
5944 | return 1; | |
5945 | } | |
7d1b0095 | 5946 | tmp3 = tcg_temp_new_i32(); |
60011498 PB |
5947 | tmp = neon_load_reg(rm, 0); |
5948 | tmp2 = neon_load_reg(rm, 1); | |
5949 | tcg_gen_ext16u_i32(tmp3, tmp); | |
2d981da7 | 5950 | gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
60011498 PB |
5951 | tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 0)); |
5952 | tcg_gen_shri_i32(tmp3, tmp, 16); | |
2d981da7 | 5953 | gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
60011498 | 5954 | tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 1)); |
7d1b0095 | 5955 | tcg_temp_free_i32(tmp); |
60011498 | 5956 | tcg_gen_ext16u_i32(tmp3, tmp2); |
2d981da7 | 5957 | gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
60011498 PB |
5958 | tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 2)); |
5959 | tcg_gen_shri_i32(tmp3, tmp2, 16); | |
2d981da7 | 5960 | gen_helper_neon_fcvt_f16_to_f32(cpu_F0s, tmp3, cpu_env); |
60011498 | 5961 | tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, 3)); |
7d1b0095 PM |
5962 | tcg_temp_free_i32(tmp2); |
5963 | tcg_temp_free_i32(tmp3); | |
60011498 | 5964 | break; |
9ee6e8bb PB |
5965 | default: |
5966 | elementwise: | |
5967 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
600b828c | 5968 | if (neon_2rm_is_float_op(op)) { |
4373f3ce PB |
5969 | tcg_gen_ld_f32(cpu_F0s, cpu_env, |
5970 | neon_reg_offset(rm, pass)); | |
39d5492a | 5971 | TCGV_UNUSED_I32(tmp); |
9ee6e8bb | 5972 | } else { |
dd8fbd78 | 5973 | tmp = neon_load_reg(rm, pass); |
9ee6e8bb PB |
5974 | } |
5975 | switch (op) { | |
600b828c | 5976 | case NEON_2RM_VREV32: |
9ee6e8bb | 5977 | switch (size) { |
dd8fbd78 FN |
5978 | case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
5979 | case 1: gen_swap_half(tmp); break; | |
600b828c | 5980 | default: abort(); |
9ee6e8bb PB |
5981 | } |
5982 | break; | |
600b828c | 5983 | case NEON_2RM_VREV16: |
dd8fbd78 | 5984 | gen_rev16(tmp); |
9ee6e8bb | 5985 | break; |
600b828c | 5986 | case NEON_2RM_VCLS: |
9ee6e8bb | 5987 | switch (size) { |
dd8fbd78 FN |
5988 | case 0: gen_helper_neon_cls_s8(tmp, tmp); break; |
5989 | case 1: gen_helper_neon_cls_s16(tmp, tmp); break; | |
5990 | case 2: gen_helper_neon_cls_s32(tmp, tmp); break; | |
600b828c | 5991 | default: abort(); |
9ee6e8bb PB |
5992 | } |
5993 | break; | |
600b828c | 5994 | case NEON_2RM_VCLZ: |
9ee6e8bb | 5995 | switch (size) { |
dd8fbd78 FN |
5996 | case 0: gen_helper_neon_clz_u8(tmp, tmp); break; |
5997 | case 1: gen_helper_neon_clz_u16(tmp, tmp); break; | |
5998 | case 2: gen_helper_clz(tmp, tmp); break; | |
600b828c | 5999 | default: abort(); |
9ee6e8bb PB |
6000 | } |
6001 | break; | |
600b828c | 6002 | case NEON_2RM_VCNT: |
dd8fbd78 | 6003 | gen_helper_neon_cnt_u8(tmp, tmp); |
9ee6e8bb | 6004 | break; |
600b828c | 6005 | case NEON_2RM_VMVN: |
dd8fbd78 | 6006 | tcg_gen_not_i32(tmp, tmp); |
9ee6e8bb | 6007 | break; |
600b828c | 6008 | case NEON_2RM_VQABS: |
9ee6e8bb | 6009 | switch (size) { |
02da0b2d PM |
6010 | case 0: |
6011 | gen_helper_neon_qabs_s8(tmp, cpu_env, tmp); | |
6012 | break; | |
6013 | case 1: | |
6014 | gen_helper_neon_qabs_s16(tmp, cpu_env, tmp); | |
6015 | break; | |
6016 | case 2: | |
6017 | gen_helper_neon_qabs_s32(tmp, cpu_env, tmp); | |
6018 | break; | |
600b828c | 6019 | default: abort(); |
9ee6e8bb PB |
6020 | } |
6021 | break; | |
600b828c | 6022 | case NEON_2RM_VQNEG: |
9ee6e8bb | 6023 | switch (size) { |
02da0b2d PM |
6024 | case 0: |
6025 | gen_helper_neon_qneg_s8(tmp, cpu_env, tmp); | |
6026 | break; | |
6027 | case 1: | |
6028 | gen_helper_neon_qneg_s16(tmp, cpu_env, tmp); | |
6029 | break; | |
6030 | case 2: | |
6031 | gen_helper_neon_qneg_s32(tmp, cpu_env, tmp); | |
6032 | break; | |
600b828c | 6033 | default: abort(); |
9ee6e8bb PB |
6034 | } |
6035 | break; | |
600b828c | 6036 | case NEON_2RM_VCGT0: case NEON_2RM_VCLE0: |
dd8fbd78 | 6037 | tmp2 = tcg_const_i32(0); |
9ee6e8bb | 6038 | switch(size) { |
dd8fbd78 FN |
6039 | case 0: gen_helper_neon_cgt_s8(tmp, tmp, tmp2); break; |
6040 | case 1: gen_helper_neon_cgt_s16(tmp, tmp, tmp2); break; | |
6041 | case 2: gen_helper_neon_cgt_s32(tmp, tmp, tmp2); break; | |
600b828c | 6042 | default: abort(); |
9ee6e8bb | 6043 | } |
39d5492a | 6044 | tcg_temp_free_i32(tmp2); |
600b828c | 6045 | if (op == NEON_2RM_VCLE0) { |
dd8fbd78 | 6046 | tcg_gen_not_i32(tmp, tmp); |
600b828c | 6047 | } |
9ee6e8bb | 6048 | break; |
600b828c | 6049 | case NEON_2RM_VCGE0: case NEON_2RM_VCLT0: |
dd8fbd78 | 6050 | tmp2 = tcg_const_i32(0); |
9ee6e8bb | 6051 | switch(size) { |
dd8fbd78 FN |
6052 | case 0: gen_helper_neon_cge_s8(tmp, tmp, tmp2); break; |
6053 | case 1: gen_helper_neon_cge_s16(tmp, tmp, tmp2); break; | |
6054 | case 2: gen_helper_neon_cge_s32(tmp, tmp, tmp2); break; | |
600b828c | 6055 | default: abort(); |
9ee6e8bb | 6056 | } |
39d5492a | 6057 | tcg_temp_free_i32(tmp2); |
600b828c | 6058 | if (op == NEON_2RM_VCLT0) { |
dd8fbd78 | 6059 | tcg_gen_not_i32(tmp, tmp); |
600b828c | 6060 | } |
9ee6e8bb | 6061 | break; |
600b828c | 6062 | case NEON_2RM_VCEQ0: |
dd8fbd78 | 6063 | tmp2 = tcg_const_i32(0); |
9ee6e8bb | 6064 | switch(size) { |
dd8fbd78 FN |
6065 | case 0: gen_helper_neon_ceq_u8(tmp, tmp, tmp2); break; |
6066 | case 1: gen_helper_neon_ceq_u16(tmp, tmp, tmp2); break; | |
6067 | case 2: gen_helper_neon_ceq_u32(tmp, tmp, tmp2); break; | |
600b828c | 6068 | default: abort(); |
9ee6e8bb | 6069 | } |
39d5492a | 6070 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 6071 | break; |
600b828c | 6072 | case NEON_2RM_VABS: |
9ee6e8bb | 6073 | switch(size) { |
dd8fbd78 FN |
6074 | case 0: gen_helper_neon_abs_s8(tmp, tmp); break; |
6075 | case 1: gen_helper_neon_abs_s16(tmp, tmp); break; | |
6076 | case 2: tcg_gen_abs_i32(tmp, tmp); break; | |
600b828c | 6077 | default: abort(); |
9ee6e8bb PB |
6078 | } |
6079 | break; | |
600b828c | 6080 | case NEON_2RM_VNEG: |
dd8fbd78 FN |
6081 | tmp2 = tcg_const_i32(0); |
6082 | gen_neon_rsb(size, tmp, tmp2); | |
39d5492a | 6083 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 6084 | break; |
600b828c | 6085 | case NEON_2RM_VCGT0_F: |
aa47cfdd PM |
6086 | { |
6087 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
dd8fbd78 | 6088 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6089 | gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus); |
39d5492a | 6090 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6091 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6092 | break; |
aa47cfdd | 6093 | } |
600b828c | 6094 | case NEON_2RM_VCGE0_F: |
aa47cfdd PM |
6095 | { |
6096 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
dd8fbd78 | 6097 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6098 | gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus); |
39d5492a | 6099 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6100 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6101 | break; |
aa47cfdd | 6102 | } |
600b828c | 6103 | case NEON_2RM_VCEQ0_F: |
aa47cfdd PM |
6104 | { |
6105 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
dd8fbd78 | 6106 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6107 | gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus); |
39d5492a | 6108 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6109 | tcg_temp_free_ptr(fpstatus); |
9ee6e8bb | 6110 | break; |
aa47cfdd | 6111 | } |
600b828c | 6112 | case NEON_2RM_VCLE0_F: |
aa47cfdd PM |
6113 | { |
6114 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
0e326109 | 6115 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6116 | gen_helper_neon_cge_f32(tmp, tmp2, tmp, fpstatus); |
39d5492a | 6117 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6118 | tcg_temp_free_ptr(fpstatus); |
0e326109 | 6119 | break; |
aa47cfdd | 6120 | } |
600b828c | 6121 | case NEON_2RM_VCLT0_F: |
aa47cfdd PM |
6122 | { |
6123 | TCGv_ptr fpstatus = get_fpstatus_ptr(1); | |
0e326109 | 6124 | tmp2 = tcg_const_i32(0); |
aa47cfdd | 6125 | gen_helper_neon_cgt_f32(tmp, tmp2, tmp, fpstatus); |
39d5492a | 6126 | tcg_temp_free_i32(tmp2); |
aa47cfdd | 6127 | tcg_temp_free_ptr(fpstatus); |
0e326109 | 6128 | break; |
aa47cfdd | 6129 | } |
600b828c | 6130 | case NEON_2RM_VABS_F: |
4373f3ce | 6131 | gen_vfp_abs(0); |
9ee6e8bb | 6132 | break; |
600b828c | 6133 | case NEON_2RM_VNEG_F: |
4373f3ce | 6134 | gen_vfp_neg(0); |
9ee6e8bb | 6135 | break; |
600b828c | 6136 | case NEON_2RM_VSWP: |
dd8fbd78 FN |
6137 | tmp2 = neon_load_reg(rd, pass); |
6138 | neon_store_reg(rm, pass, tmp2); | |
9ee6e8bb | 6139 | break; |
600b828c | 6140 | case NEON_2RM_VTRN: |
dd8fbd78 | 6141 | tmp2 = neon_load_reg(rd, pass); |
9ee6e8bb | 6142 | switch (size) { |
dd8fbd78 FN |
6143 | case 0: gen_neon_trn_u8(tmp, tmp2); break; |
6144 | case 1: gen_neon_trn_u16(tmp, tmp2); break; | |
600b828c | 6145 | default: abort(); |
9ee6e8bb | 6146 | } |
dd8fbd78 | 6147 | neon_store_reg(rm, pass, tmp2); |
9ee6e8bb | 6148 | break; |
600b828c | 6149 | case NEON_2RM_VRECPE: |
dd8fbd78 | 6150 | gen_helper_recpe_u32(tmp, tmp, cpu_env); |
9ee6e8bb | 6151 | break; |
600b828c | 6152 | case NEON_2RM_VRSQRTE: |
dd8fbd78 | 6153 | gen_helper_rsqrte_u32(tmp, tmp, cpu_env); |
9ee6e8bb | 6154 | break; |
600b828c | 6155 | case NEON_2RM_VRECPE_F: |
4373f3ce | 6156 | gen_helper_recpe_f32(cpu_F0s, cpu_F0s, cpu_env); |
9ee6e8bb | 6157 | break; |
600b828c | 6158 | case NEON_2RM_VRSQRTE_F: |
4373f3ce | 6159 | gen_helper_rsqrte_f32(cpu_F0s, cpu_F0s, cpu_env); |
9ee6e8bb | 6160 | break; |
600b828c | 6161 | case NEON_2RM_VCVT_FS: /* VCVT.F32.S32 */ |
5500b06c | 6162 | gen_vfp_sito(0, 1); |
9ee6e8bb | 6163 | break; |
600b828c | 6164 | case NEON_2RM_VCVT_FU: /* VCVT.F32.U32 */ |
5500b06c | 6165 | gen_vfp_uito(0, 1); |
9ee6e8bb | 6166 | break; |
600b828c | 6167 | case NEON_2RM_VCVT_SF: /* VCVT.S32.F32 */ |
5500b06c | 6168 | gen_vfp_tosiz(0, 1); |
9ee6e8bb | 6169 | break; |
600b828c | 6170 | case NEON_2RM_VCVT_UF: /* VCVT.U32.F32 */ |
5500b06c | 6171 | gen_vfp_touiz(0, 1); |
9ee6e8bb PB |
6172 | break; |
6173 | default: | |
600b828c PM |
6174 | /* Reserved op values were caught by the |
6175 | * neon_2rm_sizes[] check earlier. | |
6176 | */ | |
6177 | abort(); | |
9ee6e8bb | 6178 | } |
600b828c | 6179 | if (neon_2rm_is_float_op(op)) { |
4373f3ce PB |
6180 | tcg_gen_st_f32(cpu_F0s, cpu_env, |
6181 | neon_reg_offset(rd, pass)); | |
9ee6e8bb | 6182 | } else { |
dd8fbd78 | 6183 | neon_store_reg(rd, pass, tmp); |
9ee6e8bb PB |
6184 | } |
6185 | } | |
6186 | break; | |
6187 | } | |
6188 | } else if ((insn & (1 << 10)) == 0) { | |
6189 | /* VTBL, VTBX. */ | |
56907d77 PM |
6190 | int n = ((insn >> 8) & 3) + 1; |
6191 | if ((rn + n) > 32) { | |
6192 | /* This is UNPREDICTABLE; we choose to UNDEF to avoid the | |
6193 | * helper function running off the end of the register file. | |
6194 | */ | |
6195 | return 1; | |
6196 | } | |
6197 | n <<= 3; | |
9ee6e8bb | 6198 | if (insn & (1 << 6)) { |
8f8e3aa4 | 6199 | tmp = neon_load_reg(rd, 0); |
9ee6e8bb | 6200 | } else { |
7d1b0095 | 6201 | tmp = tcg_temp_new_i32(); |
8f8e3aa4 | 6202 | tcg_gen_movi_i32(tmp, 0); |
9ee6e8bb | 6203 | } |
8f8e3aa4 | 6204 | tmp2 = neon_load_reg(rm, 0); |
b75263d6 JR |
6205 | tmp4 = tcg_const_i32(rn); |
6206 | tmp5 = tcg_const_i32(n); | |
9ef39277 | 6207 | gen_helper_neon_tbl(tmp2, cpu_env, tmp2, tmp, tmp4, tmp5); |
7d1b0095 | 6208 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 6209 | if (insn & (1 << 6)) { |
8f8e3aa4 | 6210 | tmp = neon_load_reg(rd, 1); |
9ee6e8bb | 6211 | } else { |
7d1b0095 | 6212 | tmp = tcg_temp_new_i32(); |
8f8e3aa4 | 6213 | tcg_gen_movi_i32(tmp, 0); |
9ee6e8bb | 6214 | } |
8f8e3aa4 | 6215 | tmp3 = neon_load_reg(rm, 1); |
9ef39277 | 6216 | gen_helper_neon_tbl(tmp3, cpu_env, tmp3, tmp, tmp4, tmp5); |
25aeb69b JR |
6217 | tcg_temp_free_i32(tmp5); |
6218 | tcg_temp_free_i32(tmp4); | |
8f8e3aa4 | 6219 | neon_store_reg(rd, 0, tmp2); |
3018f259 | 6220 | neon_store_reg(rd, 1, tmp3); |
7d1b0095 | 6221 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
6222 | } else if ((insn & 0x380) == 0) { |
6223 | /* VDUP */ | |
133da6aa JR |
6224 | if ((insn & (7 << 16)) == 0 || (q && (rd & 1))) { |
6225 | return 1; | |
6226 | } | |
9ee6e8bb | 6227 | if (insn & (1 << 19)) { |
dd8fbd78 | 6228 | tmp = neon_load_reg(rm, 1); |
9ee6e8bb | 6229 | } else { |
dd8fbd78 | 6230 | tmp = neon_load_reg(rm, 0); |
9ee6e8bb PB |
6231 | } |
6232 | if (insn & (1 << 16)) { | |
dd8fbd78 | 6233 | gen_neon_dup_u8(tmp, ((insn >> 17) & 3) * 8); |
9ee6e8bb PB |
6234 | } else if (insn & (1 << 17)) { |
6235 | if ((insn >> 18) & 1) | |
dd8fbd78 | 6236 | gen_neon_dup_high16(tmp); |
9ee6e8bb | 6237 | else |
dd8fbd78 | 6238 | gen_neon_dup_low16(tmp); |
9ee6e8bb PB |
6239 | } |
6240 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
7d1b0095 | 6241 | tmp2 = tcg_temp_new_i32(); |
dd8fbd78 FN |
6242 | tcg_gen_mov_i32(tmp2, tmp); |
6243 | neon_store_reg(rd, pass, tmp2); | |
9ee6e8bb | 6244 | } |
7d1b0095 | 6245 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
6246 | } else { |
6247 | return 1; | |
6248 | } | |
6249 | } | |
6250 | } | |
6251 | return 0; | |
6252 | } | |
6253 | ||
0ecb72a5 | 6254 | static int disas_coproc_insn(CPUARMState * env, DisasContext *s, uint32_t insn) |
9ee6e8bb | 6255 | { |
4b6a83fb PM |
6256 | int cpnum, is64, crn, crm, opc1, opc2, isread, rt, rt2; |
6257 | const ARMCPRegInfo *ri; | |
6258 | ARMCPU *cpu = arm_env_get_cpu(env); | |
9ee6e8bb PB |
6259 | |
6260 | cpnum = (insn >> 8) & 0xf; | |
6261 | if (arm_feature(env, ARM_FEATURE_XSCALE) | |
6262 | && ((env->cp15.c15_cpar ^ 0x3fff) & (1 << cpnum))) | |
6263 | return 1; | |
6264 | ||
4b6a83fb | 6265 | /* First check for coprocessor space used for actual instructions */ |
9ee6e8bb PB |
6266 | switch (cpnum) { |
6267 | case 0: | |
6268 | case 1: | |
6269 | if (arm_feature(env, ARM_FEATURE_IWMMXT)) { | |
6270 | return disas_iwmmxt_insn(env, s, insn); | |
6271 | } else if (arm_feature(env, ARM_FEATURE_XSCALE)) { | |
6272 | return disas_dsp_insn(env, s, insn); | |
6273 | } | |
6274 | return 1; | |
6275 | case 10: | |
6276 | case 11: | |
6277 | return disas_vfp_insn (env, s, insn); | |
4b6a83fb PM |
6278 | default: |
6279 | break; | |
6280 | } | |
6281 | ||
6282 | /* Otherwise treat as a generic register access */ | |
6283 | is64 = (insn & (1 << 25)) == 0; | |
6284 | if (!is64 && ((insn & (1 << 4)) == 0)) { | |
6285 | /* cdp */ | |
6286 | return 1; | |
6287 | } | |
6288 | ||
6289 | crm = insn & 0xf; | |
6290 | if (is64) { | |
6291 | crn = 0; | |
6292 | opc1 = (insn >> 4) & 0xf; | |
6293 | opc2 = 0; | |
6294 | rt2 = (insn >> 16) & 0xf; | |
6295 | } else { | |
6296 | crn = (insn >> 16) & 0xf; | |
6297 | opc1 = (insn >> 21) & 7; | |
6298 | opc2 = (insn >> 5) & 7; | |
6299 | rt2 = 0; | |
6300 | } | |
6301 | isread = (insn >> 20) & 1; | |
6302 | rt = (insn >> 12) & 0xf; | |
6303 | ||
6304 | ri = get_arm_cp_reginfo(cpu, | |
6305 | ENCODE_CP_REG(cpnum, is64, crn, crm, opc1, opc2)); | |
6306 | if (ri) { | |
6307 | /* Check access permissions */ | |
6308 | if (!cp_access_ok(env, ri, isread)) { | |
6309 | return 1; | |
6310 | } | |
6311 | ||
6312 | /* Handle special cases first */ | |
6313 | switch (ri->type & ~(ARM_CP_FLAG_MASK & ~ARM_CP_SPECIAL)) { | |
6314 | case ARM_CP_NOP: | |
6315 | return 0; | |
6316 | case ARM_CP_WFI: | |
6317 | if (isread) { | |
6318 | return 1; | |
6319 | } | |
6320 | gen_set_pc_im(s->pc); | |
6321 | s->is_jmp = DISAS_WFI; | |
2bee5105 | 6322 | return 0; |
4b6a83fb PM |
6323 | default: |
6324 | break; | |
6325 | } | |
6326 | ||
6327 | if (isread) { | |
6328 | /* Read */ | |
6329 | if (is64) { | |
6330 | TCGv_i64 tmp64; | |
6331 | TCGv_i32 tmp; | |
6332 | if (ri->type & ARM_CP_CONST) { | |
6333 | tmp64 = tcg_const_i64(ri->resetvalue); | |
6334 | } else if (ri->readfn) { | |
6335 | TCGv_ptr tmpptr; | |
6336 | gen_set_pc_im(s->pc); | |
6337 | tmp64 = tcg_temp_new_i64(); | |
6338 | tmpptr = tcg_const_ptr(ri); | |
6339 | gen_helper_get_cp_reg64(tmp64, cpu_env, tmpptr); | |
6340 | tcg_temp_free_ptr(tmpptr); | |
6341 | } else { | |
6342 | tmp64 = tcg_temp_new_i64(); | |
6343 | tcg_gen_ld_i64(tmp64, cpu_env, ri->fieldoffset); | |
6344 | } | |
6345 | tmp = tcg_temp_new_i32(); | |
6346 | tcg_gen_trunc_i64_i32(tmp, tmp64); | |
6347 | store_reg(s, rt, tmp); | |
6348 | tcg_gen_shri_i64(tmp64, tmp64, 32); | |
ed336850 | 6349 | tmp = tcg_temp_new_i32(); |
4b6a83fb | 6350 | tcg_gen_trunc_i64_i32(tmp, tmp64); |
ed336850 | 6351 | tcg_temp_free_i64(tmp64); |
4b6a83fb PM |
6352 | store_reg(s, rt2, tmp); |
6353 | } else { | |
39d5492a | 6354 | TCGv_i32 tmp; |
4b6a83fb PM |
6355 | if (ri->type & ARM_CP_CONST) { |
6356 | tmp = tcg_const_i32(ri->resetvalue); | |
6357 | } else if (ri->readfn) { | |
6358 | TCGv_ptr tmpptr; | |
6359 | gen_set_pc_im(s->pc); | |
6360 | tmp = tcg_temp_new_i32(); | |
6361 | tmpptr = tcg_const_ptr(ri); | |
6362 | gen_helper_get_cp_reg(tmp, cpu_env, tmpptr); | |
6363 | tcg_temp_free_ptr(tmpptr); | |
6364 | } else { | |
6365 | tmp = load_cpu_offset(ri->fieldoffset); | |
6366 | } | |
6367 | if (rt == 15) { | |
6368 | /* Destination register of r15 for 32 bit loads sets | |
6369 | * the condition codes from the high 4 bits of the value | |
6370 | */ | |
6371 | gen_set_nzcv(tmp); | |
6372 | tcg_temp_free_i32(tmp); | |
6373 | } else { | |
6374 | store_reg(s, rt, tmp); | |
6375 | } | |
6376 | } | |
6377 | } else { | |
6378 | /* Write */ | |
6379 | if (ri->type & ARM_CP_CONST) { | |
6380 | /* If not forbidden by access permissions, treat as WI */ | |
6381 | return 0; | |
6382 | } | |
6383 | ||
6384 | if (is64) { | |
39d5492a | 6385 | TCGv_i32 tmplo, tmphi; |
4b6a83fb PM |
6386 | TCGv_i64 tmp64 = tcg_temp_new_i64(); |
6387 | tmplo = load_reg(s, rt); | |
6388 | tmphi = load_reg(s, rt2); | |
6389 | tcg_gen_concat_i32_i64(tmp64, tmplo, tmphi); | |
6390 | tcg_temp_free_i32(tmplo); | |
6391 | tcg_temp_free_i32(tmphi); | |
6392 | if (ri->writefn) { | |
6393 | TCGv_ptr tmpptr = tcg_const_ptr(ri); | |
6394 | gen_set_pc_im(s->pc); | |
6395 | gen_helper_set_cp_reg64(cpu_env, tmpptr, tmp64); | |
6396 | tcg_temp_free_ptr(tmpptr); | |
6397 | } else { | |
6398 | tcg_gen_st_i64(tmp64, cpu_env, ri->fieldoffset); | |
6399 | } | |
6400 | tcg_temp_free_i64(tmp64); | |
6401 | } else { | |
6402 | if (ri->writefn) { | |
39d5492a | 6403 | TCGv_i32 tmp; |
4b6a83fb PM |
6404 | TCGv_ptr tmpptr; |
6405 | gen_set_pc_im(s->pc); | |
6406 | tmp = load_reg(s, rt); | |
6407 | tmpptr = tcg_const_ptr(ri); | |
6408 | gen_helper_set_cp_reg(cpu_env, tmpptr, tmp); | |
6409 | tcg_temp_free_ptr(tmpptr); | |
6410 | tcg_temp_free_i32(tmp); | |
6411 | } else { | |
39d5492a | 6412 | TCGv_i32 tmp = load_reg(s, rt); |
4b6a83fb PM |
6413 | store_cpu_offset(tmp, ri->fieldoffset); |
6414 | } | |
6415 | } | |
6416 | /* We default to ending the TB on a coprocessor register write, | |
6417 | * but allow this to be suppressed by the register definition | |
6418 | * (usually only necessary to work around guest bugs). | |
6419 | */ | |
6420 | if (!(ri->type & ARM_CP_SUPPRESS_TB_END)) { | |
6421 | gen_lookup_tb(s); | |
6422 | } | |
6423 | } | |
6424 | return 0; | |
6425 | } | |
6426 | ||
4a9a539f | 6427 | return 1; |
9ee6e8bb PB |
6428 | } |
6429 | ||
5e3f878a PB |
6430 | |
6431 | /* Store a 64-bit value to a register pair. Clobbers val. */ | |
a7812ae4 | 6432 | static void gen_storeq_reg(DisasContext *s, int rlow, int rhigh, TCGv_i64 val) |
5e3f878a | 6433 | { |
39d5492a | 6434 | TCGv_i32 tmp; |
7d1b0095 | 6435 | tmp = tcg_temp_new_i32(); |
5e3f878a PB |
6436 | tcg_gen_trunc_i64_i32(tmp, val); |
6437 | store_reg(s, rlow, tmp); | |
7d1b0095 | 6438 | tmp = tcg_temp_new_i32(); |
5e3f878a PB |
6439 | tcg_gen_shri_i64(val, val, 32); |
6440 | tcg_gen_trunc_i64_i32(tmp, val); | |
6441 | store_reg(s, rhigh, tmp); | |
6442 | } | |
6443 | ||
6444 | /* load a 32-bit value from a register and perform a 64-bit accumulate. */ | |
a7812ae4 | 6445 | static void gen_addq_lo(DisasContext *s, TCGv_i64 val, int rlow) |
5e3f878a | 6446 | { |
a7812ae4 | 6447 | TCGv_i64 tmp; |
39d5492a | 6448 | TCGv_i32 tmp2; |
5e3f878a | 6449 | |
36aa55dc | 6450 | /* Load value and extend to 64 bits. */ |
a7812ae4 | 6451 | tmp = tcg_temp_new_i64(); |
5e3f878a PB |
6452 | tmp2 = load_reg(s, rlow); |
6453 | tcg_gen_extu_i32_i64(tmp, tmp2); | |
7d1b0095 | 6454 | tcg_temp_free_i32(tmp2); |
5e3f878a | 6455 | tcg_gen_add_i64(val, val, tmp); |
b75263d6 | 6456 | tcg_temp_free_i64(tmp); |
5e3f878a PB |
6457 | } |
6458 | ||
6459 | /* load and add a 64-bit value from a register pair. */ | |
a7812ae4 | 6460 | static void gen_addq(DisasContext *s, TCGv_i64 val, int rlow, int rhigh) |
5e3f878a | 6461 | { |
a7812ae4 | 6462 | TCGv_i64 tmp; |
39d5492a PM |
6463 | TCGv_i32 tmpl; |
6464 | TCGv_i32 tmph; | |
5e3f878a PB |
6465 | |
6466 | /* Load 64-bit value rd:rn. */ | |
36aa55dc PB |
6467 | tmpl = load_reg(s, rlow); |
6468 | tmph = load_reg(s, rhigh); | |
a7812ae4 | 6469 | tmp = tcg_temp_new_i64(); |
36aa55dc | 6470 | tcg_gen_concat_i32_i64(tmp, tmpl, tmph); |
7d1b0095 PM |
6471 | tcg_temp_free_i32(tmpl); |
6472 | tcg_temp_free_i32(tmph); | |
5e3f878a | 6473 | tcg_gen_add_i64(val, val, tmp); |
b75263d6 | 6474 | tcg_temp_free_i64(tmp); |
5e3f878a PB |
6475 | } |
6476 | ||
c9f10124 | 6477 | /* Set N and Z flags from hi|lo. */ |
39d5492a | 6478 | static void gen_logicq_cc(TCGv_i32 lo, TCGv_i32 hi) |
5e3f878a | 6479 | { |
c9f10124 RH |
6480 | tcg_gen_mov_i32(cpu_NF, hi); |
6481 | tcg_gen_or_i32(cpu_ZF, lo, hi); | |
5e3f878a PB |
6482 | } |
6483 | ||
426f5abc PB |
6484 | /* Load/Store exclusive instructions are implemented by remembering |
6485 | the value/address loaded, and seeing if these are the same | |
b90372ad | 6486 | when the store is performed. This should be sufficient to implement |
426f5abc PB |
6487 | the architecturally mandated semantics, and avoids having to monitor |
6488 | regular stores. | |
6489 | ||
6490 | In system emulation mode only one CPU will be running at once, so | |
6491 | this sequence is effectively atomic. In user emulation mode we | |
6492 | throw an exception and handle the atomic operation elsewhere. */ | |
6493 | static void gen_load_exclusive(DisasContext *s, int rt, int rt2, | |
39d5492a | 6494 | TCGv_i32 addr, int size) |
426f5abc | 6495 | { |
94ee24e7 | 6496 | TCGv_i32 tmp = tcg_temp_new_i32(); |
426f5abc PB |
6497 | |
6498 | switch (size) { | |
6499 | case 0: | |
94ee24e7 | 6500 | tcg_gen_qemu_ld8u(tmp, addr, IS_USER(s)); |
426f5abc PB |
6501 | break; |
6502 | case 1: | |
94ee24e7 | 6503 | tcg_gen_qemu_ld16u(tmp, addr, IS_USER(s)); |
426f5abc PB |
6504 | break; |
6505 | case 2: | |
6506 | case 3: | |
94ee24e7 | 6507 | tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); |
426f5abc PB |
6508 | break; |
6509 | default: | |
6510 | abort(); | |
6511 | } | |
6512 | tcg_gen_mov_i32(cpu_exclusive_val, tmp); | |
6513 | store_reg(s, rt, tmp); | |
6514 | if (size == 3) { | |
39d5492a | 6515 | TCGv_i32 tmp2 = tcg_temp_new_i32(); |
2c9adbda | 6516 | tcg_gen_addi_i32(tmp2, addr, 4); |
94ee24e7 PM |
6517 | tmp = tcg_temp_new_i32(); |
6518 | tcg_gen_qemu_ld32u(tmp, tmp2, IS_USER(s)); | |
7d1b0095 | 6519 | tcg_temp_free_i32(tmp2); |
426f5abc PB |
6520 | tcg_gen_mov_i32(cpu_exclusive_high, tmp); |
6521 | store_reg(s, rt2, tmp); | |
6522 | } | |
6523 | tcg_gen_mov_i32(cpu_exclusive_addr, addr); | |
6524 | } | |
6525 | ||
6526 | static void gen_clrex(DisasContext *s) | |
6527 | { | |
6528 | tcg_gen_movi_i32(cpu_exclusive_addr, -1); | |
6529 | } | |
6530 | ||
6531 | #ifdef CONFIG_USER_ONLY | |
6532 | static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, | |
39d5492a | 6533 | TCGv_i32 addr, int size) |
426f5abc PB |
6534 | { |
6535 | tcg_gen_mov_i32(cpu_exclusive_test, addr); | |
6536 | tcg_gen_movi_i32(cpu_exclusive_info, | |
6537 | size | (rd << 4) | (rt << 8) | (rt2 << 12)); | |
bc4a0de0 | 6538 | gen_exception_insn(s, 4, EXCP_STREX); |
426f5abc PB |
6539 | } |
6540 | #else | |
6541 | static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, | |
39d5492a | 6542 | TCGv_i32 addr, int size) |
426f5abc | 6543 | { |
39d5492a | 6544 | TCGv_i32 tmp; |
426f5abc PB |
6545 | int done_label; |
6546 | int fail_label; | |
6547 | ||
6548 | /* if (env->exclusive_addr == addr && env->exclusive_val == [addr]) { | |
6549 | [addr] = {Rt}; | |
6550 | {Rd} = 0; | |
6551 | } else { | |
6552 | {Rd} = 1; | |
6553 | } */ | |
6554 | fail_label = gen_new_label(); | |
6555 | done_label = gen_new_label(); | |
6556 | tcg_gen_brcond_i32(TCG_COND_NE, addr, cpu_exclusive_addr, fail_label); | |
94ee24e7 | 6557 | tmp = tcg_temp_new_i32(); |
426f5abc PB |
6558 | switch (size) { |
6559 | case 0: | |
94ee24e7 | 6560 | tcg_gen_qemu_ld8u(tmp, addr, IS_USER(s)); |
426f5abc PB |
6561 | break; |
6562 | case 1: | |
94ee24e7 | 6563 | tcg_gen_qemu_ld16u(tmp, addr, IS_USER(s)); |
426f5abc PB |
6564 | break; |
6565 | case 2: | |
6566 | case 3: | |
94ee24e7 | 6567 | tcg_gen_qemu_ld32u(tmp, addr, IS_USER(s)); |
426f5abc PB |
6568 | break; |
6569 | default: | |
6570 | abort(); | |
6571 | } | |
6572 | tcg_gen_brcond_i32(TCG_COND_NE, tmp, cpu_exclusive_val, fail_label); | |
7d1b0095 | 6573 | tcg_temp_free_i32(tmp); |
426f5abc | 6574 | if (size == 3) { |
39d5492a | 6575 | TCGv_i32 tmp2 = tcg_temp_new_i32(); |
426f5abc | 6576 | tcg_gen_addi_i32(tmp2, addr, 4); |
94ee24e7 PM |
6577 | tmp = tcg_temp_new_i32(); |
6578 | tcg_gen_qemu_ld32u(tmp, tmp2, IS_USER(s)); | |
7d1b0095 | 6579 | tcg_temp_free_i32(tmp2); |
426f5abc | 6580 | tcg_gen_brcond_i32(TCG_COND_NE, tmp, cpu_exclusive_high, fail_label); |
7d1b0095 | 6581 | tcg_temp_free_i32(tmp); |
426f5abc PB |
6582 | } |
6583 | tmp = load_reg(s, rt); | |
6584 | switch (size) { | |
6585 | case 0: | |
94ee24e7 | 6586 | tcg_gen_qemu_st8(tmp, addr, IS_USER(s)); |
426f5abc PB |
6587 | break; |
6588 | case 1: | |
94ee24e7 | 6589 | tcg_gen_qemu_st16(tmp, addr, IS_USER(s)); |
426f5abc PB |
6590 | break; |
6591 | case 2: | |
6592 | case 3: | |
94ee24e7 | 6593 | tcg_gen_qemu_st32(tmp, addr, IS_USER(s)); |
426f5abc PB |
6594 | break; |
6595 | default: | |
6596 | abort(); | |
6597 | } | |
94ee24e7 | 6598 | tcg_temp_free_i32(tmp); |
426f5abc PB |
6599 | if (size == 3) { |
6600 | tcg_gen_addi_i32(addr, addr, 4); | |
6601 | tmp = load_reg(s, rt2); | |
94ee24e7 PM |
6602 | tcg_gen_qemu_st32(tmp, addr, IS_USER(s)); |
6603 | tcg_temp_free_i32(tmp); | |
426f5abc PB |
6604 | } |
6605 | tcg_gen_movi_i32(cpu_R[rd], 0); | |
6606 | tcg_gen_br(done_label); | |
6607 | gen_set_label(fail_label); | |
6608 | tcg_gen_movi_i32(cpu_R[rd], 1); | |
6609 | gen_set_label(done_label); | |
6610 | tcg_gen_movi_i32(cpu_exclusive_addr, -1); | |
6611 | } | |
6612 | #endif | |
6613 | ||
81465888 PM |
6614 | /* gen_srs: |
6615 | * @env: CPUARMState | |
6616 | * @s: DisasContext | |
6617 | * @mode: mode field from insn (which stack to store to) | |
6618 | * @amode: addressing mode (DA/IA/DB/IB), encoded as per P,U bits in ARM insn | |
6619 | * @writeback: true if writeback bit set | |
6620 | * | |
6621 | * Generate code for the SRS (Store Return State) insn. | |
6622 | */ | |
6623 | static void gen_srs(DisasContext *s, | |
6624 | uint32_t mode, uint32_t amode, bool writeback) | |
6625 | { | |
6626 | int32_t offset; | |
6627 | TCGv_i32 addr = tcg_temp_new_i32(); | |
6628 | TCGv_i32 tmp = tcg_const_i32(mode); | |
6629 | gen_helper_get_r13_banked(addr, cpu_env, tmp); | |
6630 | tcg_temp_free_i32(tmp); | |
6631 | switch (amode) { | |
6632 | case 0: /* DA */ | |
6633 | offset = -4; | |
6634 | break; | |
6635 | case 1: /* IA */ | |
6636 | offset = 0; | |
6637 | break; | |
6638 | case 2: /* DB */ | |
6639 | offset = -8; | |
6640 | break; | |
6641 | case 3: /* IB */ | |
6642 | offset = 4; | |
6643 | break; | |
6644 | default: | |
6645 | abort(); | |
6646 | } | |
6647 | tcg_gen_addi_i32(addr, addr, offset); | |
6648 | tmp = load_reg(s, 14); | |
6649 | gen_st32(tmp, addr, 0); | |
6650 | tmp = load_cpu_field(spsr); | |
6651 | tcg_gen_addi_i32(addr, addr, 4); | |
6652 | gen_st32(tmp, addr, 0); | |
6653 | if (writeback) { | |
6654 | switch (amode) { | |
6655 | case 0: | |
6656 | offset = -8; | |
6657 | break; | |
6658 | case 1: | |
6659 | offset = 4; | |
6660 | break; | |
6661 | case 2: | |
6662 | offset = -4; | |
6663 | break; | |
6664 | case 3: | |
6665 | offset = 0; | |
6666 | break; | |
6667 | default: | |
6668 | abort(); | |
6669 | } | |
6670 | tcg_gen_addi_i32(addr, addr, offset); | |
6671 | tmp = tcg_const_i32(mode); | |
6672 | gen_helper_set_r13_banked(cpu_env, tmp, addr); | |
6673 | tcg_temp_free_i32(tmp); | |
6674 | } | |
6675 | tcg_temp_free_i32(addr); | |
6676 | } | |
6677 | ||
0ecb72a5 | 6678 | static void disas_arm_insn(CPUARMState * env, DisasContext *s) |
9ee6e8bb PB |
6679 | { |
6680 | unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh; | |
39d5492a PM |
6681 | TCGv_i32 tmp; |
6682 | TCGv_i32 tmp2; | |
6683 | TCGv_i32 tmp3; | |
6684 | TCGv_i32 addr; | |
a7812ae4 | 6685 | TCGv_i64 tmp64; |
9ee6e8bb | 6686 | |
d31dd73e | 6687 | insn = arm_ldl_code(env, s->pc, s->bswap_code); |
9ee6e8bb PB |
6688 | s->pc += 4; |
6689 | ||
6690 | /* M variants do not implement ARM mode. */ | |
6691 | if (IS_M(env)) | |
6692 | goto illegal_op; | |
6693 | cond = insn >> 28; | |
6694 | if (cond == 0xf){ | |
be5e7a76 DES |
6695 | /* In ARMv3 and v4 the NV condition is UNPREDICTABLE; we |
6696 | * choose to UNDEF. In ARMv5 and above the space is used | |
6697 | * for miscellaneous unconditional instructions. | |
6698 | */ | |
6699 | ARCH(5); | |
6700 | ||
9ee6e8bb PB |
6701 | /* Unconditional instructions. */ |
6702 | if (((insn >> 25) & 7) == 1) { | |
6703 | /* NEON Data processing. */ | |
6704 | if (!arm_feature(env, ARM_FEATURE_NEON)) | |
6705 | goto illegal_op; | |
6706 | ||
6707 | if (disas_neon_data_insn(env, s, insn)) | |
6708 | goto illegal_op; | |
6709 | return; | |
6710 | } | |
6711 | if ((insn & 0x0f100000) == 0x04000000) { | |
6712 | /* NEON load/store. */ | |
6713 | if (!arm_feature(env, ARM_FEATURE_NEON)) | |
6714 | goto illegal_op; | |
6715 | ||
6716 | if (disas_neon_ls_insn(env, s, insn)) | |
6717 | goto illegal_op; | |
6718 | return; | |
6719 | } | |
3d185e5d PM |
6720 | if (((insn & 0x0f30f000) == 0x0510f000) || |
6721 | ((insn & 0x0f30f010) == 0x0710f000)) { | |
6722 | if ((insn & (1 << 22)) == 0) { | |
6723 | /* PLDW; v7MP */ | |
6724 | if (!arm_feature(env, ARM_FEATURE_V7MP)) { | |
6725 | goto illegal_op; | |
6726 | } | |
6727 | } | |
6728 | /* Otherwise PLD; v5TE+ */ | |
be5e7a76 | 6729 | ARCH(5TE); |
3d185e5d PM |
6730 | return; |
6731 | } | |
6732 | if (((insn & 0x0f70f000) == 0x0450f000) || | |
6733 | ((insn & 0x0f70f010) == 0x0650f000)) { | |
6734 | ARCH(7); | |
6735 | return; /* PLI; V7 */ | |
6736 | } | |
6737 | if (((insn & 0x0f700000) == 0x04100000) || | |
6738 | ((insn & 0x0f700010) == 0x06100000)) { | |
6739 | if (!arm_feature(env, ARM_FEATURE_V7MP)) { | |
6740 | goto illegal_op; | |
6741 | } | |
6742 | return; /* v7MP: Unallocated memory hint: must NOP */ | |
6743 | } | |
6744 | ||
6745 | if ((insn & 0x0ffffdff) == 0x01010000) { | |
9ee6e8bb PB |
6746 | ARCH(6); |
6747 | /* setend */ | |
10962fd5 PM |
6748 | if (((insn >> 9) & 1) != s->bswap_code) { |
6749 | /* Dynamic endianness switching not implemented. */ | |
9ee6e8bb PB |
6750 | goto illegal_op; |
6751 | } | |
6752 | return; | |
6753 | } else if ((insn & 0x0fffff00) == 0x057ff000) { | |
6754 | switch ((insn >> 4) & 0xf) { | |
6755 | case 1: /* clrex */ | |
6756 | ARCH(6K); | |
426f5abc | 6757 | gen_clrex(s); |
9ee6e8bb PB |
6758 | return; |
6759 | case 4: /* dsb */ | |
6760 | case 5: /* dmb */ | |
6761 | case 6: /* isb */ | |
6762 | ARCH(7); | |
6763 | /* We don't emulate caches so these are a no-op. */ | |
6764 | return; | |
6765 | default: | |
6766 | goto illegal_op; | |
6767 | } | |
6768 | } else if ((insn & 0x0e5fffe0) == 0x084d0500) { | |
6769 | /* srs */ | |
81465888 | 6770 | if (IS_USER(s)) { |
9ee6e8bb | 6771 | goto illegal_op; |
9ee6e8bb | 6772 | } |
81465888 PM |
6773 | ARCH(6); |
6774 | gen_srs(s, (insn & 0x1f), (insn >> 23) & 3, insn & (1 << 21)); | |
3b328448 | 6775 | return; |
ea825eee | 6776 | } else if ((insn & 0x0e50ffe0) == 0x08100a00) { |
9ee6e8bb | 6777 | /* rfe */ |
c67b6b71 | 6778 | int32_t offset; |
9ee6e8bb PB |
6779 | if (IS_USER(s)) |
6780 | goto illegal_op; | |
6781 | ARCH(6); | |
6782 | rn = (insn >> 16) & 0xf; | |
b0109805 | 6783 | addr = load_reg(s, rn); |
9ee6e8bb PB |
6784 | i = (insn >> 23) & 3; |
6785 | switch (i) { | |
b0109805 | 6786 | case 0: offset = -4; break; /* DA */ |
c67b6b71 FN |
6787 | case 1: offset = 0; break; /* IA */ |
6788 | case 2: offset = -8; break; /* DB */ | |
b0109805 | 6789 | case 3: offset = 4; break; /* IB */ |
9ee6e8bb PB |
6790 | default: abort(); |
6791 | } | |
6792 | if (offset) | |
b0109805 PB |
6793 | tcg_gen_addi_i32(addr, addr, offset); |
6794 | /* Load PC into tmp and CPSR into tmp2. */ | |
6795 | tmp = gen_ld32(addr, 0); | |
6796 | tcg_gen_addi_i32(addr, addr, 4); | |
6797 | tmp2 = gen_ld32(addr, 0); | |
9ee6e8bb PB |
6798 | if (insn & (1 << 21)) { |
6799 | /* Base writeback. */ | |
6800 | switch (i) { | |
b0109805 | 6801 | case 0: offset = -8; break; |
c67b6b71 FN |
6802 | case 1: offset = 4; break; |
6803 | case 2: offset = -4; break; | |
b0109805 | 6804 | case 3: offset = 0; break; |
9ee6e8bb PB |
6805 | default: abort(); |
6806 | } | |
6807 | if (offset) | |
b0109805 PB |
6808 | tcg_gen_addi_i32(addr, addr, offset); |
6809 | store_reg(s, rn, addr); | |
6810 | } else { | |
7d1b0095 | 6811 | tcg_temp_free_i32(addr); |
9ee6e8bb | 6812 | } |
b0109805 | 6813 | gen_rfe(s, tmp, tmp2); |
c67b6b71 | 6814 | return; |
9ee6e8bb PB |
6815 | } else if ((insn & 0x0e000000) == 0x0a000000) { |
6816 | /* branch link and change to thumb (blx <offset>) */ | |
6817 | int32_t offset; | |
6818 | ||
6819 | val = (uint32_t)s->pc; | |
7d1b0095 | 6820 | tmp = tcg_temp_new_i32(); |
d9ba4830 PB |
6821 | tcg_gen_movi_i32(tmp, val); |
6822 | store_reg(s, 14, tmp); | |
9ee6e8bb PB |
6823 | /* Sign-extend the 24-bit offset */ |
6824 | offset = (((int32_t)insn) << 8) >> 8; | |
6825 | /* offset * 4 + bit24 * 2 + (thumb bit) */ | |
6826 | val += (offset << 2) | ((insn >> 23) & 2) | 1; | |
6827 | /* pipeline offset */ | |
6828 | val += 4; | |
be5e7a76 | 6829 | /* protected by ARCH(5); above, near the start of uncond block */ |
d9ba4830 | 6830 | gen_bx_im(s, val); |
9ee6e8bb PB |
6831 | return; |
6832 | } else if ((insn & 0x0e000f00) == 0x0c000100) { | |
6833 | if (arm_feature(env, ARM_FEATURE_IWMMXT)) { | |
6834 | /* iWMMXt register transfer. */ | |
6835 | if (env->cp15.c15_cpar & (1 << 1)) | |
6836 | if (!disas_iwmmxt_insn(env, s, insn)) | |
6837 | return; | |
6838 | } | |
6839 | } else if ((insn & 0x0fe00000) == 0x0c400000) { | |
6840 | /* Coprocessor double register transfer. */ | |
be5e7a76 | 6841 | ARCH(5TE); |
9ee6e8bb PB |
6842 | } else if ((insn & 0x0f000010) == 0x0e000010) { |
6843 | /* Additional coprocessor register transfer. */ | |
7997d92f | 6844 | } else if ((insn & 0x0ff10020) == 0x01000000) { |
9ee6e8bb PB |
6845 | uint32_t mask; |
6846 | uint32_t val; | |
6847 | /* cps (privileged) */ | |
6848 | if (IS_USER(s)) | |
6849 | return; | |
6850 | mask = val = 0; | |
6851 | if (insn & (1 << 19)) { | |
6852 | if (insn & (1 << 8)) | |
6853 | mask |= CPSR_A; | |
6854 | if (insn & (1 << 7)) | |
6855 | mask |= CPSR_I; | |
6856 | if (insn & (1 << 6)) | |
6857 | mask |= CPSR_F; | |
6858 | if (insn & (1 << 18)) | |
6859 | val |= mask; | |
6860 | } | |
7997d92f | 6861 | if (insn & (1 << 17)) { |
9ee6e8bb PB |
6862 | mask |= CPSR_M; |
6863 | val |= (insn & 0x1f); | |
6864 | } | |
6865 | if (mask) { | |
2fbac54b | 6866 | gen_set_psr_im(s, mask, 0, val); |
9ee6e8bb PB |
6867 | } |
6868 | return; | |
6869 | } | |
6870 | goto illegal_op; | |
6871 | } | |
6872 | if (cond != 0xe) { | |
6873 | /* if not always execute, we generate a conditional jump to | |
6874 | next instruction */ | |
6875 | s->condlabel = gen_new_label(); | |
d9ba4830 | 6876 | gen_test_cc(cond ^ 1, s->condlabel); |
9ee6e8bb PB |
6877 | s->condjmp = 1; |
6878 | } | |
6879 | if ((insn & 0x0f900000) == 0x03000000) { | |
6880 | if ((insn & (1 << 21)) == 0) { | |
6881 | ARCH(6T2); | |
6882 | rd = (insn >> 12) & 0xf; | |
6883 | val = ((insn >> 4) & 0xf000) | (insn & 0xfff); | |
6884 | if ((insn & (1 << 22)) == 0) { | |
6885 | /* MOVW */ | |
7d1b0095 | 6886 | tmp = tcg_temp_new_i32(); |
5e3f878a | 6887 | tcg_gen_movi_i32(tmp, val); |
9ee6e8bb PB |
6888 | } else { |
6889 | /* MOVT */ | |
5e3f878a | 6890 | tmp = load_reg(s, rd); |
86831435 | 6891 | tcg_gen_ext16u_i32(tmp, tmp); |
5e3f878a | 6892 | tcg_gen_ori_i32(tmp, tmp, val << 16); |
9ee6e8bb | 6893 | } |
5e3f878a | 6894 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
6895 | } else { |
6896 | if (((insn >> 12) & 0xf) != 0xf) | |
6897 | goto illegal_op; | |
6898 | if (((insn >> 16) & 0xf) == 0) { | |
6899 | gen_nop_hint(s, insn & 0xff); | |
6900 | } else { | |
6901 | /* CPSR = immediate */ | |
6902 | val = insn & 0xff; | |
6903 | shift = ((insn >> 8) & 0xf) * 2; | |
6904 | if (shift) | |
6905 | val = (val >> shift) | (val << (32 - shift)); | |
9ee6e8bb | 6906 | i = ((insn & (1 << 22)) != 0); |
2fbac54b | 6907 | if (gen_set_psr_im(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, val)) |
9ee6e8bb PB |
6908 | goto illegal_op; |
6909 | } | |
6910 | } | |
6911 | } else if ((insn & 0x0f900000) == 0x01000000 | |
6912 | && (insn & 0x00000090) != 0x00000090) { | |
6913 | /* miscellaneous instructions */ | |
6914 | op1 = (insn >> 21) & 3; | |
6915 | sh = (insn >> 4) & 0xf; | |
6916 | rm = insn & 0xf; | |
6917 | switch (sh) { | |
6918 | case 0x0: /* move program status register */ | |
6919 | if (op1 & 1) { | |
6920 | /* PSR = reg */ | |
2fbac54b | 6921 | tmp = load_reg(s, rm); |
9ee6e8bb | 6922 | i = ((op1 & 2) != 0); |
2fbac54b | 6923 | if (gen_set_psr(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i, tmp)) |
9ee6e8bb PB |
6924 | goto illegal_op; |
6925 | } else { | |
6926 | /* reg = PSR */ | |
6927 | rd = (insn >> 12) & 0xf; | |
6928 | if (op1 & 2) { | |
6929 | if (IS_USER(s)) | |
6930 | goto illegal_op; | |
d9ba4830 | 6931 | tmp = load_cpu_field(spsr); |
9ee6e8bb | 6932 | } else { |
7d1b0095 | 6933 | tmp = tcg_temp_new_i32(); |
9ef39277 | 6934 | gen_helper_cpsr_read(tmp, cpu_env); |
9ee6e8bb | 6935 | } |
d9ba4830 | 6936 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
6937 | } |
6938 | break; | |
6939 | case 0x1: | |
6940 | if (op1 == 1) { | |
6941 | /* branch/exchange thumb (bx). */ | |
be5e7a76 | 6942 | ARCH(4T); |
d9ba4830 PB |
6943 | tmp = load_reg(s, rm); |
6944 | gen_bx(s, tmp); | |
9ee6e8bb PB |
6945 | } else if (op1 == 3) { |
6946 | /* clz */ | |
be5e7a76 | 6947 | ARCH(5); |
9ee6e8bb | 6948 | rd = (insn >> 12) & 0xf; |
1497c961 PB |
6949 | tmp = load_reg(s, rm); |
6950 | gen_helper_clz(tmp, tmp); | |
6951 | store_reg(s, rd, tmp); | |
9ee6e8bb PB |
6952 | } else { |
6953 | goto illegal_op; | |
6954 | } | |
6955 | break; | |
6956 | case 0x2: | |
6957 | if (op1 == 1) { | |
6958 | ARCH(5J); /* bxj */ | |
6959 | /* Trivial implementation equivalent to bx. */ | |
d9ba4830 PB |
6960 | tmp = load_reg(s, rm); |
6961 | gen_bx(s, tmp); | |
9ee6e8bb PB |
6962 | } else { |
6963 | goto illegal_op; | |
6964 | } | |
6965 | break; | |
6966 | case 0x3: | |
6967 | if (op1 != 1) | |
6968 | goto illegal_op; | |
6969 | ||
be5e7a76 | 6970 | ARCH(5); |
9ee6e8bb | 6971 | /* branch link/exchange thumb (blx) */ |
d9ba4830 | 6972 | tmp = load_reg(s, rm); |
7d1b0095 | 6973 | tmp2 = tcg_temp_new_i32(); |
d9ba4830 PB |
6974 | tcg_gen_movi_i32(tmp2, s->pc); |
6975 | store_reg(s, 14, tmp2); | |
6976 | gen_bx(s, tmp); | |
9ee6e8bb PB |
6977 | break; |
6978 | case 0x5: /* saturating add/subtract */ | |
be5e7a76 | 6979 | ARCH(5TE); |
9ee6e8bb PB |
6980 | rd = (insn >> 12) & 0xf; |
6981 | rn = (insn >> 16) & 0xf; | |
b40d0353 | 6982 | tmp = load_reg(s, rm); |
5e3f878a | 6983 | tmp2 = load_reg(s, rn); |
9ee6e8bb | 6984 | if (op1 & 2) |
9ef39277 | 6985 | gen_helper_double_saturate(tmp2, cpu_env, tmp2); |
9ee6e8bb | 6986 | if (op1 & 1) |
9ef39277 | 6987 | gen_helper_sub_saturate(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 6988 | else |
9ef39277 | 6989 | gen_helper_add_saturate(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 6990 | tcg_temp_free_i32(tmp2); |
5e3f878a | 6991 | store_reg(s, rd, tmp); |
9ee6e8bb | 6992 | break; |
49e14940 AL |
6993 | case 7: |
6994 | /* SMC instruction (op1 == 3) | |
6995 | and undefined instructions (op1 == 0 || op1 == 2) | |
6996 | will trap */ | |
6997 | if (op1 != 1) { | |
6998 | goto illegal_op; | |
6999 | } | |
7000 | /* bkpt */ | |
be5e7a76 | 7001 | ARCH(5); |
bc4a0de0 | 7002 | gen_exception_insn(s, 4, EXCP_BKPT); |
9ee6e8bb PB |
7003 | break; |
7004 | case 0x8: /* signed multiply */ | |
7005 | case 0xa: | |
7006 | case 0xc: | |
7007 | case 0xe: | |
be5e7a76 | 7008 | ARCH(5TE); |
9ee6e8bb PB |
7009 | rs = (insn >> 8) & 0xf; |
7010 | rn = (insn >> 12) & 0xf; | |
7011 | rd = (insn >> 16) & 0xf; | |
7012 | if (op1 == 1) { | |
7013 | /* (32 * 16) >> 16 */ | |
5e3f878a PB |
7014 | tmp = load_reg(s, rm); |
7015 | tmp2 = load_reg(s, rs); | |
9ee6e8bb | 7016 | if (sh & 4) |
5e3f878a | 7017 | tcg_gen_sari_i32(tmp2, tmp2, 16); |
9ee6e8bb | 7018 | else |
5e3f878a | 7019 | gen_sxth(tmp2); |
a7812ae4 PB |
7020 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
7021 | tcg_gen_shri_i64(tmp64, tmp64, 16); | |
7d1b0095 | 7022 | tmp = tcg_temp_new_i32(); |
a7812ae4 | 7023 | tcg_gen_trunc_i64_i32(tmp, tmp64); |
b75263d6 | 7024 | tcg_temp_free_i64(tmp64); |
9ee6e8bb | 7025 | if ((sh & 2) == 0) { |
5e3f878a | 7026 | tmp2 = load_reg(s, rn); |
9ef39277 | 7027 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 7028 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7029 | } |
5e3f878a | 7030 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7031 | } else { |
7032 | /* 16 * 16 */ | |
5e3f878a PB |
7033 | tmp = load_reg(s, rm); |
7034 | tmp2 = load_reg(s, rs); | |
7035 | gen_mulxy(tmp, tmp2, sh & 2, sh & 4); | |
7d1b0095 | 7036 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7037 | if (op1 == 2) { |
a7812ae4 PB |
7038 | tmp64 = tcg_temp_new_i64(); |
7039 | tcg_gen_ext_i32_i64(tmp64, tmp); | |
7d1b0095 | 7040 | tcg_temp_free_i32(tmp); |
a7812ae4 PB |
7041 | gen_addq(s, tmp64, rn, rd); |
7042 | gen_storeq_reg(s, rn, rd, tmp64); | |
b75263d6 | 7043 | tcg_temp_free_i64(tmp64); |
9ee6e8bb PB |
7044 | } else { |
7045 | if (op1 == 0) { | |
5e3f878a | 7046 | tmp2 = load_reg(s, rn); |
9ef39277 | 7047 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 7048 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7049 | } |
5e3f878a | 7050 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7051 | } |
7052 | } | |
7053 | break; | |
7054 | default: | |
7055 | goto illegal_op; | |
7056 | } | |
7057 | } else if (((insn & 0x0e000000) == 0 && | |
7058 | (insn & 0x00000090) != 0x90) || | |
7059 | ((insn & 0x0e000000) == (1 << 25))) { | |
7060 | int set_cc, logic_cc, shiftop; | |
7061 | ||
7062 | op1 = (insn >> 21) & 0xf; | |
7063 | set_cc = (insn >> 20) & 1; | |
7064 | logic_cc = table_logic_cc[op1] & set_cc; | |
7065 | ||
7066 | /* data processing instruction */ | |
7067 | if (insn & (1 << 25)) { | |
7068 | /* immediate operand */ | |
7069 | val = insn & 0xff; | |
7070 | shift = ((insn >> 8) & 0xf) * 2; | |
e9bb4aa9 | 7071 | if (shift) { |
9ee6e8bb | 7072 | val = (val >> shift) | (val << (32 - shift)); |
e9bb4aa9 | 7073 | } |
7d1b0095 | 7074 | tmp2 = tcg_temp_new_i32(); |
e9bb4aa9 JR |
7075 | tcg_gen_movi_i32(tmp2, val); |
7076 | if (logic_cc && shift) { | |
7077 | gen_set_CF_bit31(tmp2); | |
7078 | } | |
9ee6e8bb PB |
7079 | } else { |
7080 | /* register */ | |
7081 | rm = (insn) & 0xf; | |
e9bb4aa9 | 7082 | tmp2 = load_reg(s, rm); |
9ee6e8bb PB |
7083 | shiftop = (insn >> 5) & 3; |
7084 | if (!(insn & (1 << 4))) { | |
7085 | shift = (insn >> 7) & 0x1f; | |
e9bb4aa9 | 7086 | gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); |
9ee6e8bb PB |
7087 | } else { |
7088 | rs = (insn >> 8) & 0xf; | |
8984bd2e | 7089 | tmp = load_reg(s, rs); |
e9bb4aa9 | 7090 | gen_arm_shift_reg(tmp2, shiftop, tmp, logic_cc); |
9ee6e8bb PB |
7091 | } |
7092 | } | |
7093 | if (op1 != 0x0f && op1 != 0x0d) { | |
7094 | rn = (insn >> 16) & 0xf; | |
e9bb4aa9 JR |
7095 | tmp = load_reg(s, rn); |
7096 | } else { | |
39d5492a | 7097 | TCGV_UNUSED_I32(tmp); |
9ee6e8bb PB |
7098 | } |
7099 | rd = (insn >> 12) & 0xf; | |
7100 | switch(op1) { | |
7101 | case 0x00: | |
e9bb4aa9 JR |
7102 | tcg_gen_and_i32(tmp, tmp, tmp2); |
7103 | if (logic_cc) { | |
7104 | gen_logic_CC(tmp); | |
7105 | } | |
21aeb343 | 7106 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7107 | break; |
7108 | case 0x01: | |
e9bb4aa9 JR |
7109 | tcg_gen_xor_i32(tmp, tmp, tmp2); |
7110 | if (logic_cc) { | |
7111 | gen_logic_CC(tmp); | |
7112 | } | |
21aeb343 | 7113 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7114 | break; |
7115 | case 0x02: | |
7116 | if (set_cc && rd == 15) { | |
7117 | /* SUBS r15, ... is used for exception return. */ | |
e9bb4aa9 | 7118 | if (IS_USER(s)) { |
9ee6e8bb | 7119 | goto illegal_op; |
e9bb4aa9 | 7120 | } |
72485ec4 | 7121 | gen_sub_CC(tmp, tmp, tmp2); |
e9bb4aa9 | 7122 | gen_exception_return(s, tmp); |
9ee6e8bb | 7123 | } else { |
e9bb4aa9 | 7124 | if (set_cc) { |
72485ec4 | 7125 | gen_sub_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
7126 | } else { |
7127 | tcg_gen_sub_i32(tmp, tmp, tmp2); | |
7128 | } | |
21aeb343 | 7129 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7130 | } |
7131 | break; | |
7132 | case 0x03: | |
e9bb4aa9 | 7133 | if (set_cc) { |
72485ec4 | 7134 | gen_sub_CC(tmp, tmp2, tmp); |
e9bb4aa9 JR |
7135 | } else { |
7136 | tcg_gen_sub_i32(tmp, tmp2, tmp); | |
7137 | } | |
21aeb343 | 7138 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7139 | break; |
7140 | case 0x04: | |
e9bb4aa9 | 7141 | if (set_cc) { |
72485ec4 | 7142 | gen_add_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
7143 | } else { |
7144 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
7145 | } | |
21aeb343 | 7146 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7147 | break; |
7148 | case 0x05: | |
e9bb4aa9 | 7149 | if (set_cc) { |
49b4c31e | 7150 | gen_adc_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
7151 | } else { |
7152 | gen_add_carry(tmp, tmp, tmp2); | |
7153 | } | |
21aeb343 | 7154 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7155 | break; |
7156 | case 0x06: | |
e9bb4aa9 | 7157 | if (set_cc) { |
2de68a49 | 7158 | gen_sbc_CC(tmp, tmp, tmp2); |
e9bb4aa9 JR |
7159 | } else { |
7160 | gen_sub_carry(tmp, tmp, tmp2); | |
7161 | } | |
21aeb343 | 7162 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7163 | break; |
7164 | case 0x07: | |
e9bb4aa9 | 7165 | if (set_cc) { |
2de68a49 | 7166 | gen_sbc_CC(tmp, tmp2, tmp); |
e9bb4aa9 JR |
7167 | } else { |
7168 | gen_sub_carry(tmp, tmp2, tmp); | |
7169 | } | |
21aeb343 | 7170 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7171 | break; |
7172 | case 0x08: | |
7173 | if (set_cc) { | |
e9bb4aa9 JR |
7174 | tcg_gen_and_i32(tmp, tmp, tmp2); |
7175 | gen_logic_CC(tmp); | |
9ee6e8bb | 7176 | } |
7d1b0095 | 7177 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
7178 | break; |
7179 | case 0x09: | |
7180 | if (set_cc) { | |
e9bb4aa9 JR |
7181 | tcg_gen_xor_i32(tmp, tmp, tmp2); |
7182 | gen_logic_CC(tmp); | |
9ee6e8bb | 7183 | } |
7d1b0095 | 7184 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
7185 | break; |
7186 | case 0x0a: | |
7187 | if (set_cc) { | |
72485ec4 | 7188 | gen_sub_CC(tmp, tmp, tmp2); |
9ee6e8bb | 7189 | } |
7d1b0095 | 7190 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
7191 | break; |
7192 | case 0x0b: | |
7193 | if (set_cc) { | |
72485ec4 | 7194 | gen_add_CC(tmp, tmp, tmp2); |
9ee6e8bb | 7195 | } |
7d1b0095 | 7196 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
7197 | break; |
7198 | case 0x0c: | |
e9bb4aa9 JR |
7199 | tcg_gen_or_i32(tmp, tmp, tmp2); |
7200 | if (logic_cc) { | |
7201 | gen_logic_CC(tmp); | |
7202 | } | |
21aeb343 | 7203 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7204 | break; |
7205 | case 0x0d: | |
7206 | if (logic_cc && rd == 15) { | |
7207 | /* MOVS r15, ... is used for exception return. */ | |
e9bb4aa9 | 7208 | if (IS_USER(s)) { |
9ee6e8bb | 7209 | goto illegal_op; |
e9bb4aa9 JR |
7210 | } |
7211 | gen_exception_return(s, tmp2); | |
9ee6e8bb | 7212 | } else { |
e9bb4aa9 JR |
7213 | if (logic_cc) { |
7214 | gen_logic_CC(tmp2); | |
7215 | } | |
21aeb343 | 7216 | store_reg_bx(env, s, rd, tmp2); |
9ee6e8bb PB |
7217 | } |
7218 | break; | |
7219 | case 0x0e: | |
f669df27 | 7220 | tcg_gen_andc_i32(tmp, tmp, tmp2); |
e9bb4aa9 JR |
7221 | if (logic_cc) { |
7222 | gen_logic_CC(tmp); | |
7223 | } | |
21aeb343 | 7224 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
7225 | break; |
7226 | default: | |
7227 | case 0x0f: | |
e9bb4aa9 JR |
7228 | tcg_gen_not_i32(tmp2, tmp2); |
7229 | if (logic_cc) { | |
7230 | gen_logic_CC(tmp2); | |
7231 | } | |
21aeb343 | 7232 | store_reg_bx(env, s, rd, tmp2); |
9ee6e8bb PB |
7233 | break; |
7234 | } | |
e9bb4aa9 | 7235 | if (op1 != 0x0f && op1 != 0x0d) { |
7d1b0095 | 7236 | tcg_temp_free_i32(tmp2); |
e9bb4aa9 | 7237 | } |
9ee6e8bb PB |
7238 | } else { |
7239 | /* other instructions */ | |
7240 | op1 = (insn >> 24) & 0xf; | |
7241 | switch(op1) { | |
7242 | case 0x0: | |
7243 | case 0x1: | |
7244 | /* multiplies, extra load/stores */ | |
7245 | sh = (insn >> 5) & 3; | |
7246 | if (sh == 0) { | |
7247 | if (op1 == 0x0) { | |
7248 | rd = (insn >> 16) & 0xf; | |
7249 | rn = (insn >> 12) & 0xf; | |
7250 | rs = (insn >> 8) & 0xf; | |
7251 | rm = (insn) & 0xf; | |
7252 | op1 = (insn >> 20) & 0xf; | |
7253 | switch (op1) { | |
7254 | case 0: case 1: case 2: case 3: case 6: | |
7255 | /* 32 bit mul */ | |
5e3f878a PB |
7256 | tmp = load_reg(s, rs); |
7257 | tmp2 = load_reg(s, rm); | |
7258 | tcg_gen_mul_i32(tmp, tmp, tmp2); | |
7d1b0095 | 7259 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
7260 | if (insn & (1 << 22)) { |
7261 | /* Subtract (mls) */ | |
7262 | ARCH(6T2); | |
5e3f878a PB |
7263 | tmp2 = load_reg(s, rn); |
7264 | tcg_gen_sub_i32(tmp, tmp2, tmp); | |
7d1b0095 | 7265 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
7266 | } else if (insn & (1 << 21)) { |
7267 | /* Add */ | |
5e3f878a PB |
7268 | tmp2 = load_reg(s, rn); |
7269 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
7d1b0095 | 7270 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
7271 | } |
7272 | if (insn & (1 << 20)) | |
5e3f878a PB |
7273 | gen_logic_CC(tmp); |
7274 | store_reg(s, rd, tmp); | |
9ee6e8bb | 7275 | break; |
8aac08b1 AJ |
7276 | case 4: |
7277 | /* 64 bit mul double accumulate (UMAAL) */ | |
7278 | ARCH(6); | |
7279 | tmp = load_reg(s, rs); | |
7280 | tmp2 = load_reg(s, rm); | |
7281 | tmp64 = gen_mulu_i64_i32(tmp, tmp2); | |
7282 | gen_addq_lo(s, tmp64, rn); | |
7283 | gen_addq_lo(s, tmp64, rd); | |
7284 | gen_storeq_reg(s, rn, rd, tmp64); | |
7285 | tcg_temp_free_i64(tmp64); | |
7286 | break; | |
7287 | case 8: case 9: case 10: case 11: | |
7288 | case 12: case 13: case 14: case 15: | |
7289 | /* 64 bit mul: UMULL, UMLAL, SMULL, SMLAL. */ | |
5e3f878a PB |
7290 | tmp = load_reg(s, rs); |
7291 | tmp2 = load_reg(s, rm); | |
8aac08b1 | 7292 | if (insn & (1 << 22)) { |
c9f10124 | 7293 | tcg_gen_muls2_i32(tmp, tmp2, tmp, tmp2); |
8aac08b1 | 7294 | } else { |
c9f10124 | 7295 | tcg_gen_mulu2_i32(tmp, tmp2, tmp, tmp2); |
8aac08b1 AJ |
7296 | } |
7297 | if (insn & (1 << 21)) { /* mult accumulate */ | |
39d5492a PM |
7298 | TCGv_i32 al = load_reg(s, rn); |
7299 | TCGv_i32 ah = load_reg(s, rd); | |
c9f10124 | 7300 | tcg_gen_add2_i32(tmp, tmp2, tmp, tmp2, al, ah); |
39d5492a PM |
7301 | tcg_temp_free_i32(al); |
7302 | tcg_temp_free_i32(ah); | |
9ee6e8bb | 7303 | } |
8aac08b1 | 7304 | if (insn & (1 << 20)) { |
c9f10124 | 7305 | gen_logicq_cc(tmp, tmp2); |
8aac08b1 | 7306 | } |
c9f10124 RH |
7307 | store_reg(s, rn, tmp); |
7308 | store_reg(s, rd, tmp2); | |
9ee6e8bb | 7309 | break; |
8aac08b1 AJ |
7310 | default: |
7311 | goto illegal_op; | |
9ee6e8bb PB |
7312 | } |
7313 | } else { | |
7314 | rn = (insn >> 16) & 0xf; | |
7315 | rd = (insn >> 12) & 0xf; | |
7316 | if (insn & (1 << 23)) { | |
7317 | /* load/store exclusive */ | |
86753403 PB |
7318 | op1 = (insn >> 21) & 0x3; |
7319 | if (op1) | |
a47f43d2 | 7320 | ARCH(6K); |
86753403 PB |
7321 | else |
7322 | ARCH(6); | |
3174f8e9 | 7323 | addr = tcg_temp_local_new_i32(); |
98a46317 | 7324 | load_reg_var(s, addr, rn); |
9ee6e8bb | 7325 | if (insn & (1 << 20)) { |
86753403 PB |
7326 | switch (op1) { |
7327 | case 0: /* ldrex */ | |
426f5abc | 7328 | gen_load_exclusive(s, rd, 15, addr, 2); |
86753403 PB |
7329 | break; |
7330 | case 1: /* ldrexd */ | |
426f5abc | 7331 | gen_load_exclusive(s, rd, rd + 1, addr, 3); |
86753403 PB |
7332 | break; |
7333 | case 2: /* ldrexb */ | |
426f5abc | 7334 | gen_load_exclusive(s, rd, 15, addr, 0); |
86753403 PB |
7335 | break; |
7336 | case 3: /* ldrexh */ | |
426f5abc | 7337 | gen_load_exclusive(s, rd, 15, addr, 1); |
86753403 PB |
7338 | break; |
7339 | default: | |
7340 | abort(); | |
7341 | } | |
9ee6e8bb PB |
7342 | } else { |
7343 | rm = insn & 0xf; | |
86753403 PB |
7344 | switch (op1) { |
7345 | case 0: /* strex */ | |
426f5abc | 7346 | gen_store_exclusive(s, rd, rm, 15, addr, 2); |
86753403 PB |
7347 | break; |
7348 | case 1: /* strexd */ | |
502e64fe | 7349 | gen_store_exclusive(s, rd, rm, rm + 1, addr, 3); |
86753403 PB |
7350 | break; |
7351 | case 2: /* strexb */ | |
426f5abc | 7352 | gen_store_exclusive(s, rd, rm, 15, addr, 0); |
86753403 PB |
7353 | break; |
7354 | case 3: /* strexh */ | |
426f5abc | 7355 | gen_store_exclusive(s, rd, rm, 15, addr, 1); |
86753403 PB |
7356 | break; |
7357 | default: | |
7358 | abort(); | |
7359 | } | |
9ee6e8bb | 7360 | } |
39d5492a | 7361 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
7362 | } else { |
7363 | /* SWP instruction */ | |
7364 | rm = (insn) & 0xf; | |
7365 | ||
8984bd2e PB |
7366 | /* ??? This is not really atomic. However we know |
7367 | we never have multiple CPUs running in parallel, | |
7368 | so it is good enough. */ | |
7369 | addr = load_reg(s, rn); | |
7370 | tmp = load_reg(s, rm); | |
9ee6e8bb | 7371 | if (insn & (1 << 22)) { |
8984bd2e PB |
7372 | tmp2 = gen_ld8u(addr, IS_USER(s)); |
7373 | gen_st8(tmp, addr, IS_USER(s)); | |
9ee6e8bb | 7374 | } else { |
8984bd2e PB |
7375 | tmp2 = gen_ld32(addr, IS_USER(s)); |
7376 | gen_st32(tmp, addr, IS_USER(s)); | |
9ee6e8bb | 7377 | } |
7d1b0095 | 7378 | tcg_temp_free_i32(addr); |
8984bd2e | 7379 | store_reg(s, rd, tmp2); |
9ee6e8bb PB |
7380 | } |
7381 | } | |
7382 | } else { | |
7383 | int address_offset; | |
7384 | int load; | |
7385 | /* Misc load/store */ | |
7386 | rn = (insn >> 16) & 0xf; | |
7387 | rd = (insn >> 12) & 0xf; | |
b0109805 | 7388 | addr = load_reg(s, rn); |
9ee6e8bb | 7389 | if (insn & (1 << 24)) |
b0109805 | 7390 | gen_add_datah_offset(s, insn, 0, addr); |
9ee6e8bb PB |
7391 | address_offset = 0; |
7392 | if (insn & (1 << 20)) { | |
7393 | /* load */ | |
7394 | switch(sh) { | |
7395 | case 1: | |
b0109805 | 7396 | tmp = gen_ld16u(addr, IS_USER(s)); |
9ee6e8bb PB |
7397 | break; |
7398 | case 2: | |
b0109805 | 7399 | tmp = gen_ld8s(addr, IS_USER(s)); |
9ee6e8bb PB |
7400 | break; |
7401 | default: | |
7402 | case 3: | |
b0109805 | 7403 | tmp = gen_ld16s(addr, IS_USER(s)); |
9ee6e8bb PB |
7404 | break; |
7405 | } | |
7406 | load = 1; | |
7407 | } else if (sh & 2) { | |
be5e7a76 | 7408 | ARCH(5TE); |
9ee6e8bb PB |
7409 | /* doubleword */ |
7410 | if (sh & 1) { | |
7411 | /* store */ | |
b0109805 PB |
7412 | tmp = load_reg(s, rd); |
7413 | gen_st32(tmp, addr, IS_USER(s)); | |
7414 | tcg_gen_addi_i32(addr, addr, 4); | |
7415 | tmp = load_reg(s, rd + 1); | |
7416 | gen_st32(tmp, addr, IS_USER(s)); | |
9ee6e8bb PB |
7417 | load = 0; |
7418 | } else { | |
7419 | /* load */ | |
b0109805 PB |
7420 | tmp = gen_ld32(addr, IS_USER(s)); |
7421 | store_reg(s, rd, tmp); | |
7422 | tcg_gen_addi_i32(addr, addr, 4); | |
7423 | tmp = gen_ld32(addr, IS_USER(s)); | |
9ee6e8bb PB |
7424 | rd++; |
7425 | load = 1; | |
7426 | } | |
7427 | address_offset = -4; | |
7428 | } else { | |
7429 | /* store */ | |
b0109805 PB |
7430 | tmp = load_reg(s, rd); |
7431 | gen_st16(tmp, addr, IS_USER(s)); | |
9ee6e8bb PB |
7432 | load = 0; |
7433 | } | |
7434 | /* Perform base writeback before the loaded value to | |
7435 | ensure correct behavior with overlapping index registers. | |
7436 | ldrd with base writeback is is undefined if the | |
7437 | destination and index registers overlap. */ | |
7438 | if (!(insn & (1 << 24))) { | |
b0109805 PB |
7439 | gen_add_datah_offset(s, insn, address_offset, addr); |
7440 | store_reg(s, rn, addr); | |
9ee6e8bb PB |
7441 | } else if (insn & (1 << 21)) { |
7442 | if (address_offset) | |
b0109805 PB |
7443 | tcg_gen_addi_i32(addr, addr, address_offset); |
7444 | store_reg(s, rn, addr); | |
7445 | } else { | |
7d1b0095 | 7446 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
7447 | } |
7448 | if (load) { | |
7449 | /* Complete the load. */ | |
b0109805 | 7450 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7451 | } |
7452 | } | |
7453 | break; | |
7454 | case 0x4: | |
7455 | case 0x5: | |
7456 | goto do_ldst; | |
7457 | case 0x6: | |
7458 | case 0x7: | |
7459 | if (insn & (1 << 4)) { | |
7460 | ARCH(6); | |
7461 | /* Armv6 Media instructions. */ | |
7462 | rm = insn & 0xf; | |
7463 | rn = (insn >> 16) & 0xf; | |
2c0262af | 7464 | rd = (insn >> 12) & 0xf; |
9ee6e8bb PB |
7465 | rs = (insn >> 8) & 0xf; |
7466 | switch ((insn >> 23) & 3) { | |
7467 | case 0: /* Parallel add/subtract. */ | |
7468 | op1 = (insn >> 20) & 7; | |
6ddbc6e4 PB |
7469 | tmp = load_reg(s, rn); |
7470 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
7471 | sh = (insn >> 5) & 7; |
7472 | if ((op1 & 3) == 0 || sh == 5 || sh == 6) | |
7473 | goto illegal_op; | |
6ddbc6e4 | 7474 | gen_arm_parallel_addsub(op1, sh, tmp, tmp2); |
7d1b0095 | 7475 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 7476 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7477 | break; |
7478 | case 1: | |
7479 | if ((insn & 0x00700020) == 0) { | |
6c95676b | 7480 | /* Halfword pack. */ |
3670669c PB |
7481 | tmp = load_reg(s, rn); |
7482 | tmp2 = load_reg(s, rm); | |
9ee6e8bb | 7483 | shift = (insn >> 7) & 0x1f; |
3670669c PB |
7484 | if (insn & (1 << 6)) { |
7485 | /* pkhtb */ | |
22478e79 AZ |
7486 | if (shift == 0) |
7487 | shift = 31; | |
7488 | tcg_gen_sari_i32(tmp2, tmp2, shift); | |
3670669c | 7489 | tcg_gen_andi_i32(tmp, tmp, 0xffff0000); |
86831435 | 7490 | tcg_gen_ext16u_i32(tmp2, tmp2); |
3670669c PB |
7491 | } else { |
7492 | /* pkhbt */ | |
22478e79 AZ |
7493 | if (shift) |
7494 | tcg_gen_shli_i32(tmp2, tmp2, shift); | |
86831435 | 7495 | tcg_gen_ext16u_i32(tmp, tmp); |
3670669c PB |
7496 | tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000); |
7497 | } | |
7498 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
7d1b0095 | 7499 | tcg_temp_free_i32(tmp2); |
3670669c | 7500 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7501 | } else if ((insn & 0x00200020) == 0x00200000) { |
7502 | /* [us]sat */ | |
6ddbc6e4 | 7503 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
7504 | shift = (insn >> 7) & 0x1f; |
7505 | if (insn & (1 << 6)) { | |
7506 | if (shift == 0) | |
7507 | shift = 31; | |
6ddbc6e4 | 7508 | tcg_gen_sari_i32(tmp, tmp, shift); |
9ee6e8bb | 7509 | } else { |
6ddbc6e4 | 7510 | tcg_gen_shli_i32(tmp, tmp, shift); |
9ee6e8bb PB |
7511 | } |
7512 | sh = (insn >> 16) & 0x1f; | |
40d3c433 CL |
7513 | tmp2 = tcg_const_i32(sh); |
7514 | if (insn & (1 << 22)) | |
9ef39277 | 7515 | gen_helper_usat(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 7516 | else |
9ef39277 | 7517 | gen_helper_ssat(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 7518 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 7519 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7520 | } else if ((insn & 0x00300fe0) == 0x00200f20) { |
7521 | /* [us]sat16 */ | |
6ddbc6e4 | 7522 | tmp = load_reg(s, rm); |
9ee6e8bb | 7523 | sh = (insn >> 16) & 0x1f; |
40d3c433 CL |
7524 | tmp2 = tcg_const_i32(sh); |
7525 | if (insn & (1 << 22)) | |
9ef39277 | 7526 | gen_helper_usat16(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 7527 | else |
9ef39277 | 7528 | gen_helper_ssat16(tmp, cpu_env, tmp, tmp2); |
40d3c433 | 7529 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 7530 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7531 | } else if ((insn & 0x00700fe0) == 0x00000fa0) { |
7532 | /* Select bytes. */ | |
6ddbc6e4 PB |
7533 | tmp = load_reg(s, rn); |
7534 | tmp2 = load_reg(s, rm); | |
7d1b0095 | 7535 | tmp3 = tcg_temp_new_i32(); |
0ecb72a5 | 7536 | tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUARMState, GE)); |
6ddbc6e4 | 7537 | gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
7d1b0095 PM |
7538 | tcg_temp_free_i32(tmp3); |
7539 | tcg_temp_free_i32(tmp2); | |
6ddbc6e4 | 7540 | store_reg(s, rd, tmp); |
9ee6e8bb | 7541 | } else if ((insn & 0x000003e0) == 0x00000060) { |
5e3f878a | 7542 | tmp = load_reg(s, rm); |
9ee6e8bb | 7543 | shift = (insn >> 10) & 3; |
1301f322 | 7544 | /* ??? In many cases it's not necessary to do a |
9ee6e8bb PB |
7545 | rotate, a shift is sufficient. */ |
7546 | if (shift != 0) | |
f669df27 | 7547 | tcg_gen_rotri_i32(tmp, tmp, shift * 8); |
9ee6e8bb PB |
7548 | op1 = (insn >> 20) & 7; |
7549 | switch (op1) { | |
5e3f878a PB |
7550 | case 0: gen_sxtb16(tmp); break; |
7551 | case 2: gen_sxtb(tmp); break; | |
7552 | case 3: gen_sxth(tmp); break; | |
7553 | case 4: gen_uxtb16(tmp); break; | |
7554 | case 6: gen_uxtb(tmp); break; | |
7555 | case 7: gen_uxth(tmp); break; | |
9ee6e8bb PB |
7556 | default: goto illegal_op; |
7557 | } | |
7558 | if (rn != 15) { | |
5e3f878a | 7559 | tmp2 = load_reg(s, rn); |
9ee6e8bb | 7560 | if ((op1 & 3) == 0) { |
5e3f878a | 7561 | gen_add16(tmp, tmp2); |
9ee6e8bb | 7562 | } else { |
5e3f878a | 7563 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 7564 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
7565 | } |
7566 | } | |
6c95676b | 7567 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7568 | } else if ((insn & 0x003f0f60) == 0x003f0f20) { |
7569 | /* rev */ | |
b0109805 | 7570 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
7571 | if (insn & (1 << 22)) { |
7572 | if (insn & (1 << 7)) { | |
b0109805 | 7573 | gen_revsh(tmp); |
9ee6e8bb PB |
7574 | } else { |
7575 | ARCH(6T2); | |
b0109805 | 7576 | gen_helper_rbit(tmp, tmp); |
9ee6e8bb PB |
7577 | } |
7578 | } else { | |
7579 | if (insn & (1 << 7)) | |
b0109805 | 7580 | gen_rev16(tmp); |
9ee6e8bb | 7581 | else |
66896cb8 | 7582 | tcg_gen_bswap32_i32(tmp, tmp); |
9ee6e8bb | 7583 | } |
b0109805 | 7584 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7585 | } else { |
7586 | goto illegal_op; | |
7587 | } | |
7588 | break; | |
7589 | case 2: /* Multiplies (Type 3). */ | |
41e9564d PM |
7590 | switch ((insn >> 20) & 0x7) { |
7591 | case 5: | |
7592 | if (((insn >> 6) ^ (insn >> 7)) & 1) { | |
7593 | /* op2 not 00x or 11x : UNDEF */ | |
7594 | goto illegal_op; | |
7595 | } | |
838fa72d AJ |
7596 | /* Signed multiply most significant [accumulate]. |
7597 | (SMMUL, SMMLA, SMMLS) */ | |
41e9564d PM |
7598 | tmp = load_reg(s, rm); |
7599 | tmp2 = load_reg(s, rs); | |
a7812ae4 | 7600 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
838fa72d | 7601 | |
955a7dd5 | 7602 | if (rd != 15) { |
838fa72d | 7603 | tmp = load_reg(s, rd); |
9ee6e8bb | 7604 | if (insn & (1 << 6)) { |
838fa72d | 7605 | tmp64 = gen_subq_msw(tmp64, tmp); |
9ee6e8bb | 7606 | } else { |
838fa72d | 7607 | tmp64 = gen_addq_msw(tmp64, tmp); |
9ee6e8bb PB |
7608 | } |
7609 | } | |
838fa72d AJ |
7610 | if (insn & (1 << 5)) { |
7611 | tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u); | |
7612 | } | |
7613 | tcg_gen_shri_i64(tmp64, tmp64, 32); | |
7d1b0095 | 7614 | tmp = tcg_temp_new_i32(); |
838fa72d AJ |
7615 | tcg_gen_trunc_i64_i32(tmp, tmp64); |
7616 | tcg_temp_free_i64(tmp64); | |
955a7dd5 | 7617 | store_reg(s, rn, tmp); |
41e9564d PM |
7618 | break; |
7619 | case 0: | |
7620 | case 4: | |
7621 | /* SMLAD, SMUAD, SMLSD, SMUSD, SMLALD, SMLSLD */ | |
7622 | if (insn & (1 << 7)) { | |
7623 | goto illegal_op; | |
7624 | } | |
7625 | tmp = load_reg(s, rm); | |
7626 | tmp2 = load_reg(s, rs); | |
9ee6e8bb | 7627 | if (insn & (1 << 5)) |
5e3f878a PB |
7628 | gen_swap_half(tmp2); |
7629 | gen_smul_dual(tmp, tmp2); | |
5e3f878a | 7630 | if (insn & (1 << 6)) { |
e1d177b9 | 7631 | /* This subtraction cannot overflow. */ |
5e3f878a PB |
7632 | tcg_gen_sub_i32(tmp, tmp, tmp2); |
7633 | } else { | |
e1d177b9 PM |
7634 | /* This addition cannot overflow 32 bits; |
7635 | * however it may overflow considered as a signed | |
7636 | * operation, in which case we must set the Q flag. | |
7637 | */ | |
9ef39277 | 7638 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
5e3f878a | 7639 | } |
7d1b0095 | 7640 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7641 | if (insn & (1 << 22)) { |
5e3f878a | 7642 | /* smlald, smlsld */ |
a7812ae4 PB |
7643 | tmp64 = tcg_temp_new_i64(); |
7644 | tcg_gen_ext_i32_i64(tmp64, tmp); | |
7d1b0095 | 7645 | tcg_temp_free_i32(tmp); |
a7812ae4 PB |
7646 | gen_addq(s, tmp64, rd, rn); |
7647 | gen_storeq_reg(s, rd, rn, tmp64); | |
b75263d6 | 7648 | tcg_temp_free_i64(tmp64); |
9ee6e8bb | 7649 | } else { |
5e3f878a | 7650 | /* smuad, smusd, smlad, smlsd */ |
22478e79 | 7651 | if (rd != 15) |
9ee6e8bb | 7652 | { |
22478e79 | 7653 | tmp2 = load_reg(s, rd); |
9ef39277 | 7654 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 7655 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7656 | } |
22478e79 | 7657 | store_reg(s, rn, tmp); |
9ee6e8bb | 7658 | } |
41e9564d | 7659 | break; |
b8b8ea05 PM |
7660 | case 1: |
7661 | case 3: | |
7662 | /* SDIV, UDIV */ | |
7663 | if (!arm_feature(env, ARM_FEATURE_ARM_DIV)) { | |
7664 | goto illegal_op; | |
7665 | } | |
7666 | if (((insn >> 5) & 7) || (rd != 15)) { | |
7667 | goto illegal_op; | |
7668 | } | |
7669 | tmp = load_reg(s, rm); | |
7670 | tmp2 = load_reg(s, rs); | |
7671 | if (insn & (1 << 21)) { | |
7672 | gen_helper_udiv(tmp, tmp, tmp2); | |
7673 | } else { | |
7674 | gen_helper_sdiv(tmp, tmp, tmp2); | |
7675 | } | |
7676 | tcg_temp_free_i32(tmp2); | |
7677 | store_reg(s, rn, tmp); | |
7678 | break; | |
41e9564d PM |
7679 | default: |
7680 | goto illegal_op; | |
9ee6e8bb PB |
7681 | } |
7682 | break; | |
7683 | case 3: | |
7684 | op1 = ((insn >> 17) & 0x38) | ((insn >> 5) & 7); | |
7685 | switch (op1) { | |
7686 | case 0: /* Unsigned sum of absolute differences. */ | |
6ddbc6e4 PB |
7687 | ARCH(6); |
7688 | tmp = load_reg(s, rm); | |
7689 | tmp2 = load_reg(s, rs); | |
7690 | gen_helper_usad8(tmp, tmp, tmp2); | |
7d1b0095 | 7691 | tcg_temp_free_i32(tmp2); |
ded9d295 AZ |
7692 | if (rd != 15) { |
7693 | tmp2 = load_reg(s, rd); | |
6ddbc6e4 | 7694 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 7695 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7696 | } |
ded9d295 | 7697 | store_reg(s, rn, tmp); |
9ee6e8bb PB |
7698 | break; |
7699 | case 0x20: case 0x24: case 0x28: case 0x2c: | |
7700 | /* Bitfield insert/clear. */ | |
7701 | ARCH(6T2); | |
7702 | shift = (insn >> 7) & 0x1f; | |
7703 | i = (insn >> 16) & 0x1f; | |
7704 | i = i + 1 - shift; | |
7705 | if (rm == 15) { | |
7d1b0095 | 7706 | tmp = tcg_temp_new_i32(); |
5e3f878a | 7707 | tcg_gen_movi_i32(tmp, 0); |
9ee6e8bb | 7708 | } else { |
5e3f878a | 7709 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
7710 | } |
7711 | if (i != 32) { | |
5e3f878a | 7712 | tmp2 = load_reg(s, rd); |
d593c48e | 7713 | tcg_gen_deposit_i32(tmp, tmp2, tmp, shift, i); |
7d1b0095 | 7714 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7715 | } |
5e3f878a | 7716 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7717 | break; |
7718 | case 0x12: case 0x16: case 0x1a: case 0x1e: /* sbfx */ | |
7719 | case 0x32: case 0x36: case 0x3a: case 0x3e: /* ubfx */ | |
4cc633c3 | 7720 | ARCH(6T2); |
5e3f878a | 7721 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
7722 | shift = (insn >> 7) & 0x1f; |
7723 | i = ((insn >> 16) & 0x1f) + 1; | |
7724 | if (shift + i > 32) | |
7725 | goto illegal_op; | |
7726 | if (i < 32) { | |
7727 | if (op1 & 0x20) { | |
5e3f878a | 7728 | gen_ubfx(tmp, shift, (1u << i) - 1); |
9ee6e8bb | 7729 | } else { |
5e3f878a | 7730 | gen_sbfx(tmp, shift, i); |
9ee6e8bb PB |
7731 | } |
7732 | } | |
5e3f878a | 7733 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
7734 | break; |
7735 | default: | |
7736 | goto illegal_op; | |
7737 | } | |
7738 | break; | |
7739 | } | |
7740 | break; | |
7741 | } | |
7742 | do_ldst: | |
7743 | /* Check for undefined extension instructions | |
7744 | * per the ARM Bible IE: | |
7745 | * xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx | |
7746 | */ | |
7747 | sh = (0xf << 20) | (0xf << 4); | |
7748 | if (op1 == 0x7 && ((insn & sh) == sh)) | |
7749 | { | |
7750 | goto illegal_op; | |
7751 | } | |
7752 | /* load/store byte/word */ | |
7753 | rn = (insn >> 16) & 0xf; | |
7754 | rd = (insn >> 12) & 0xf; | |
b0109805 | 7755 | tmp2 = load_reg(s, rn); |
9ee6e8bb PB |
7756 | i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000); |
7757 | if (insn & (1 << 24)) | |
b0109805 | 7758 | gen_add_data_offset(s, insn, tmp2); |
9ee6e8bb PB |
7759 | if (insn & (1 << 20)) { |
7760 | /* load */ | |
9ee6e8bb | 7761 | if (insn & (1 << 22)) { |
b0109805 | 7762 | tmp = gen_ld8u(tmp2, i); |
9ee6e8bb | 7763 | } else { |
b0109805 | 7764 | tmp = gen_ld32(tmp2, i); |
9ee6e8bb | 7765 | } |
9ee6e8bb PB |
7766 | } else { |
7767 | /* store */ | |
b0109805 | 7768 | tmp = load_reg(s, rd); |
9ee6e8bb | 7769 | if (insn & (1 << 22)) |
b0109805 | 7770 | gen_st8(tmp, tmp2, i); |
9ee6e8bb | 7771 | else |
b0109805 | 7772 | gen_st32(tmp, tmp2, i); |
9ee6e8bb PB |
7773 | } |
7774 | if (!(insn & (1 << 24))) { | |
b0109805 PB |
7775 | gen_add_data_offset(s, insn, tmp2); |
7776 | store_reg(s, rn, tmp2); | |
7777 | } else if (insn & (1 << 21)) { | |
7778 | store_reg(s, rn, tmp2); | |
7779 | } else { | |
7d1b0095 | 7780 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
7781 | } |
7782 | if (insn & (1 << 20)) { | |
7783 | /* Complete the load. */ | |
be5e7a76 | 7784 | store_reg_from_load(env, s, rd, tmp); |
9ee6e8bb PB |
7785 | } |
7786 | break; | |
7787 | case 0x08: | |
7788 | case 0x09: | |
7789 | { | |
7790 | int j, n, user, loaded_base; | |
39d5492a | 7791 | TCGv_i32 loaded_var; |
9ee6e8bb PB |
7792 | /* load/store multiple words */ |
7793 | /* XXX: store correct base if write back */ | |
7794 | user = 0; | |
7795 | if (insn & (1 << 22)) { | |
7796 | if (IS_USER(s)) | |
7797 | goto illegal_op; /* only usable in supervisor mode */ | |
7798 | ||
7799 | if ((insn & (1 << 15)) == 0) | |
7800 | user = 1; | |
7801 | } | |
7802 | rn = (insn >> 16) & 0xf; | |
b0109805 | 7803 | addr = load_reg(s, rn); |
9ee6e8bb PB |
7804 | |
7805 | /* compute total size */ | |
7806 | loaded_base = 0; | |
39d5492a | 7807 | TCGV_UNUSED_I32(loaded_var); |
9ee6e8bb PB |
7808 | n = 0; |
7809 | for(i=0;i<16;i++) { | |
7810 | if (insn & (1 << i)) | |
7811 | n++; | |
7812 | } | |
7813 | /* XXX: test invalid n == 0 case ? */ | |
7814 | if (insn & (1 << 23)) { | |
7815 | if (insn & (1 << 24)) { | |
7816 | /* pre increment */ | |
b0109805 | 7817 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb PB |
7818 | } else { |
7819 | /* post increment */ | |
7820 | } | |
7821 | } else { | |
7822 | if (insn & (1 << 24)) { | |
7823 | /* pre decrement */ | |
b0109805 | 7824 | tcg_gen_addi_i32(addr, addr, -(n * 4)); |
9ee6e8bb PB |
7825 | } else { |
7826 | /* post decrement */ | |
7827 | if (n != 1) | |
b0109805 | 7828 | tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
9ee6e8bb PB |
7829 | } |
7830 | } | |
7831 | j = 0; | |
7832 | for(i=0;i<16;i++) { | |
7833 | if (insn & (1 << i)) { | |
7834 | if (insn & (1 << 20)) { | |
7835 | /* load */ | |
b0109805 | 7836 | tmp = gen_ld32(addr, IS_USER(s)); |
be5e7a76 | 7837 | if (user) { |
b75263d6 | 7838 | tmp2 = tcg_const_i32(i); |
1ce94f81 | 7839 | gen_helper_set_user_reg(cpu_env, tmp2, tmp); |
b75263d6 | 7840 | tcg_temp_free_i32(tmp2); |
7d1b0095 | 7841 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 7842 | } else if (i == rn) { |
b0109805 | 7843 | loaded_var = tmp; |
9ee6e8bb PB |
7844 | loaded_base = 1; |
7845 | } else { | |
be5e7a76 | 7846 | store_reg_from_load(env, s, i, tmp); |
9ee6e8bb PB |
7847 | } |
7848 | } else { | |
7849 | /* store */ | |
7850 | if (i == 15) { | |
7851 | /* special case: r15 = PC + 8 */ | |
7852 | val = (long)s->pc + 4; | |
7d1b0095 | 7853 | tmp = tcg_temp_new_i32(); |
b0109805 | 7854 | tcg_gen_movi_i32(tmp, val); |
9ee6e8bb | 7855 | } else if (user) { |
7d1b0095 | 7856 | tmp = tcg_temp_new_i32(); |
b75263d6 | 7857 | tmp2 = tcg_const_i32(i); |
9ef39277 | 7858 | gen_helper_get_user_reg(tmp, cpu_env, tmp2); |
b75263d6 | 7859 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 7860 | } else { |
b0109805 | 7861 | tmp = load_reg(s, i); |
9ee6e8bb | 7862 | } |
b0109805 | 7863 | gen_st32(tmp, addr, IS_USER(s)); |
9ee6e8bb PB |
7864 | } |
7865 | j++; | |
7866 | /* no need to add after the last transfer */ | |
7867 | if (j != n) | |
b0109805 | 7868 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb PB |
7869 | } |
7870 | } | |
7871 | if (insn & (1 << 21)) { | |
7872 | /* write back */ | |
7873 | if (insn & (1 << 23)) { | |
7874 | if (insn & (1 << 24)) { | |
7875 | /* pre increment */ | |
7876 | } else { | |
7877 | /* post increment */ | |
b0109805 | 7878 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb PB |
7879 | } |
7880 | } else { | |
7881 | if (insn & (1 << 24)) { | |
7882 | /* pre decrement */ | |
7883 | if (n != 1) | |
b0109805 | 7884 | tcg_gen_addi_i32(addr, addr, -((n - 1) * 4)); |
9ee6e8bb PB |
7885 | } else { |
7886 | /* post decrement */ | |
b0109805 | 7887 | tcg_gen_addi_i32(addr, addr, -(n * 4)); |
9ee6e8bb PB |
7888 | } |
7889 | } | |
b0109805 PB |
7890 | store_reg(s, rn, addr); |
7891 | } else { | |
7d1b0095 | 7892 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
7893 | } |
7894 | if (loaded_base) { | |
b0109805 | 7895 | store_reg(s, rn, loaded_var); |
9ee6e8bb PB |
7896 | } |
7897 | if ((insn & (1 << 22)) && !user) { | |
7898 | /* Restore CPSR from SPSR. */ | |
d9ba4830 PB |
7899 | tmp = load_cpu_field(spsr); |
7900 | gen_set_cpsr(tmp, 0xffffffff); | |
7d1b0095 | 7901 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
7902 | s->is_jmp = DISAS_UPDATE; |
7903 | } | |
7904 | } | |
7905 | break; | |
7906 | case 0xa: | |
7907 | case 0xb: | |
7908 | { | |
7909 | int32_t offset; | |
7910 | ||
7911 | /* branch (and link) */ | |
7912 | val = (int32_t)s->pc; | |
7913 | if (insn & (1 << 24)) { | |
7d1b0095 | 7914 | tmp = tcg_temp_new_i32(); |
5e3f878a PB |
7915 | tcg_gen_movi_i32(tmp, val); |
7916 | store_reg(s, 14, tmp); | |
9ee6e8bb PB |
7917 | } |
7918 | offset = (((int32_t)insn << 8) >> 8); | |
7919 | val += (offset << 2) + 4; | |
7920 | gen_jmp(s, val); | |
7921 | } | |
7922 | break; | |
7923 | case 0xc: | |
7924 | case 0xd: | |
7925 | case 0xe: | |
7926 | /* Coprocessor. */ | |
7927 | if (disas_coproc_insn(env, s, insn)) | |
7928 | goto illegal_op; | |
7929 | break; | |
7930 | case 0xf: | |
7931 | /* swi */ | |
5e3f878a | 7932 | gen_set_pc_im(s->pc); |
9ee6e8bb PB |
7933 | s->is_jmp = DISAS_SWI; |
7934 | break; | |
7935 | default: | |
7936 | illegal_op: | |
bc4a0de0 | 7937 | gen_exception_insn(s, 4, EXCP_UDEF); |
9ee6e8bb PB |
7938 | break; |
7939 | } | |
7940 | } | |
7941 | } | |
7942 | ||
7943 | /* Return true if this is a Thumb-2 logical op. */ | |
7944 | static int | |
7945 | thumb2_logic_op(int op) | |
7946 | { | |
7947 | return (op < 8); | |
7948 | } | |
7949 | ||
7950 | /* Generate code for a Thumb-2 data processing operation. If CONDS is nonzero | |
7951 | then set condition code flags based on the result of the operation. | |
7952 | If SHIFTER_OUT is nonzero then set the carry flag for logical operations | |
7953 | to the high bit of T1. | |
7954 | Returns zero if the opcode is valid. */ | |
7955 | ||
7956 | static int | |
39d5492a PM |
7957 | gen_thumb2_data_op(DisasContext *s, int op, int conds, uint32_t shifter_out, |
7958 | TCGv_i32 t0, TCGv_i32 t1) | |
9ee6e8bb PB |
7959 | { |
7960 | int logic_cc; | |
7961 | ||
7962 | logic_cc = 0; | |
7963 | switch (op) { | |
7964 | case 0: /* and */ | |
396e467c | 7965 | tcg_gen_and_i32(t0, t0, t1); |
9ee6e8bb PB |
7966 | logic_cc = conds; |
7967 | break; | |
7968 | case 1: /* bic */ | |
f669df27 | 7969 | tcg_gen_andc_i32(t0, t0, t1); |
9ee6e8bb PB |
7970 | logic_cc = conds; |
7971 | break; | |
7972 | case 2: /* orr */ | |
396e467c | 7973 | tcg_gen_or_i32(t0, t0, t1); |
9ee6e8bb PB |
7974 | logic_cc = conds; |
7975 | break; | |
7976 | case 3: /* orn */ | |
29501f1b | 7977 | tcg_gen_orc_i32(t0, t0, t1); |
9ee6e8bb PB |
7978 | logic_cc = conds; |
7979 | break; | |
7980 | case 4: /* eor */ | |
396e467c | 7981 | tcg_gen_xor_i32(t0, t0, t1); |
9ee6e8bb PB |
7982 | logic_cc = conds; |
7983 | break; | |
7984 | case 8: /* add */ | |
7985 | if (conds) | |
72485ec4 | 7986 | gen_add_CC(t0, t0, t1); |
9ee6e8bb | 7987 | else |
396e467c | 7988 | tcg_gen_add_i32(t0, t0, t1); |
9ee6e8bb PB |
7989 | break; |
7990 | case 10: /* adc */ | |
7991 | if (conds) | |
49b4c31e | 7992 | gen_adc_CC(t0, t0, t1); |
9ee6e8bb | 7993 | else |
396e467c | 7994 | gen_adc(t0, t1); |
9ee6e8bb PB |
7995 | break; |
7996 | case 11: /* sbc */ | |
2de68a49 RH |
7997 | if (conds) { |
7998 | gen_sbc_CC(t0, t0, t1); | |
7999 | } else { | |
396e467c | 8000 | gen_sub_carry(t0, t0, t1); |
2de68a49 | 8001 | } |
9ee6e8bb PB |
8002 | break; |
8003 | case 13: /* sub */ | |
8004 | if (conds) | |
72485ec4 | 8005 | gen_sub_CC(t0, t0, t1); |
9ee6e8bb | 8006 | else |
396e467c | 8007 | tcg_gen_sub_i32(t0, t0, t1); |
9ee6e8bb PB |
8008 | break; |
8009 | case 14: /* rsb */ | |
8010 | if (conds) | |
72485ec4 | 8011 | gen_sub_CC(t0, t1, t0); |
9ee6e8bb | 8012 | else |
396e467c | 8013 | tcg_gen_sub_i32(t0, t1, t0); |
9ee6e8bb PB |
8014 | break; |
8015 | default: /* 5, 6, 7, 9, 12, 15. */ | |
8016 | return 1; | |
8017 | } | |
8018 | if (logic_cc) { | |
396e467c | 8019 | gen_logic_CC(t0); |
9ee6e8bb | 8020 | if (shifter_out) |
396e467c | 8021 | gen_set_CF_bit31(t1); |
9ee6e8bb PB |
8022 | } |
8023 | return 0; | |
8024 | } | |
8025 | ||
8026 | /* Translate a 32-bit thumb instruction. Returns nonzero if the instruction | |
8027 | is not legal. */ | |
0ecb72a5 | 8028 | static int disas_thumb2_insn(CPUARMState *env, DisasContext *s, uint16_t insn_hw1) |
9ee6e8bb | 8029 | { |
b0109805 | 8030 | uint32_t insn, imm, shift, offset; |
9ee6e8bb | 8031 | uint32_t rd, rn, rm, rs; |
39d5492a PM |
8032 | TCGv_i32 tmp; |
8033 | TCGv_i32 tmp2; | |
8034 | TCGv_i32 tmp3; | |
8035 | TCGv_i32 addr; | |
a7812ae4 | 8036 | TCGv_i64 tmp64; |
9ee6e8bb PB |
8037 | int op; |
8038 | int shiftop; | |
8039 | int conds; | |
8040 | int logic_cc; | |
8041 | ||
8042 | if (!(arm_feature(env, ARM_FEATURE_THUMB2) | |
8043 | || arm_feature (env, ARM_FEATURE_M))) { | |
601d70b9 | 8044 | /* Thumb-1 cores may need to treat bl and blx as a pair of |
9ee6e8bb PB |
8045 | 16-bit instructions to get correct prefetch abort behavior. */ |
8046 | insn = insn_hw1; | |
8047 | if ((insn & (1 << 12)) == 0) { | |
be5e7a76 | 8048 | ARCH(5); |
9ee6e8bb PB |
8049 | /* Second half of blx. */ |
8050 | offset = ((insn & 0x7ff) << 1); | |
d9ba4830 PB |
8051 | tmp = load_reg(s, 14); |
8052 | tcg_gen_addi_i32(tmp, tmp, offset); | |
8053 | tcg_gen_andi_i32(tmp, tmp, 0xfffffffc); | |
9ee6e8bb | 8054 | |
7d1b0095 | 8055 | tmp2 = tcg_temp_new_i32(); |
b0109805 | 8056 | tcg_gen_movi_i32(tmp2, s->pc | 1); |
d9ba4830 PB |
8057 | store_reg(s, 14, tmp2); |
8058 | gen_bx(s, tmp); | |
9ee6e8bb PB |
8059 | return 0; |
8060 | } | |
8061 | if (insn & (1 << 11)) { | |
8062 | /* Second half of bl. */ | |
8063 | offset = ((insn & 0x7ff) << 1) | 1; | |
d9ba4830 | 8064 | tmp = load_reg(s, 14); |
6a0d8a1d | 8065 | tcg_gen_addi_i32(tmp, tmp, offset); |
9ee6e8bb | 8066 | |
7d1b0095 | 8067 | tmp2 = tcg_temp_new_i32(); |
b0109805 | 8068 | tcg_gen_movi_i32(tmp2, s->pc | 1); |
d9ba4830 PB |
8069 | store_reg(s, 14, tmp2); |
8070 | gen_bx(s, tmp); | |
9ee6e8bb PB |
8071 | return 0; |
8072 | } | |
8073 | if ((s->pc & ~TARGET_PAGE_MASK) == 0) { | |
8074 | /* Instruction spans a page boundary. Implement it as two | |
8075 | 16-bit instructions in case the second half causes an | |
8076 | prefetch abort. */ | |
8077 | offset = ((int32_t)insn << 21) >> 9; | |
396e467c | 8078 | tcg_gen_movi_i32(cpu_R[14], s->pc + 2 + offset); |
9ee6e8bb PB |
8079 | return 0; |
8080 | } | |
8081 | /* Fall through to 32-bit decode. */ | |
8082 | } | |
8083 | ||
d31dd73e | 8084 | insn = arm_lduw_code(env, s->pc, s->bswap_code); |
9ee6e8bb PB |
8085 | s->pc += 2; |
8086 | insn |= (uint32_t)insn_hw1 << 16; | |
8087 | ||
8088 | if ((insn & 0xf800e800) != 0xf000e800) { | |
8089 | ARCH(6T2); | |
8090 | } | |
8091 | ||
8092 | rn = (insn >> 16) & 0xf; | |
8093 | rs = (insn >> 12) & 0xf; | |
8094 | rd = (insn >> 8) & 0xf; | |
8095 | rm = insn & 0xf; | |
8096 | switch ((insn >> 25) & 0xf) { | |
8097 | case 0: case 1: case 2: case 3: | |
8098 | /* 16-bit instructions. Should never happen. */ | |
8099 | abort(); | |
8100 | case 4: | |
8101 | if (insn & (1 << 22)) { | |
8102 | /* Other load/store, table branch. */ | |
8103 | if (insn & 0x01200000) { | |
8104 | /* Load/store doubleword. */ | |
8105 | if (rn == 15) { | |
7d1b0095 | 8106 | addr = tcg_temp_new_i32(); |
b0109805 | 8107 | tcg_gen_movi_i32(addr, s->pc & ~3); |
9ee6e8bb | 8108 | } else { |
b0109805 | 8109 | addr = load_reg(s, rn); |
9ee6e8bb PB |
8110 | } |
8111 | offset = (insn & 0xff) * 4; | |
8112 | if ((insn & (1 << 23)) == 0) | |
8113 | offset = -offset; | |
8114 | if (insn & (1 << 24)) { | |
b0109805 | 8115 | tcg_gen_addi_i32(addr, addr, offset); |
9ee6e8bb PB |
8116 | offset = 0; |
8117 | } | |
8118 | if (insn & (1 << 20)) { | |
8119 | /* ldrd */ | |
b0109805 PB |
8120 | tmp = gen_ld32(addr, IS_USER(s)); |
8121 | store_reg(s, rs, tmp); | |
8122 | tcg_gen_addi_i32(addr, addr, 4); | |
8123 | tmp = gen_ld32(addr, IS_USER(s)); | |
8124 | store_reg(s, rd, tmp); | |
9ee6e8bb PB |
8125 | } else { |
8126 | /* strd */ | |
b0109805 PB |
8127 | tmp = load_reg(s, rs); |
8128 | gen_st32(tmp, addr, IS_USER(s)); | |
8129 | tcg_gen_addi_i32(addr, addr, 4); | |
8130 | tmp = load_reg(s, rd); | |
8131 | gen_st32(tmp, addr, IS_USER(s)); | |
9ee6e8bb PB |
8132 | } |
8133 | if (insn & (1 << 21)) { | |
8134 | /* Base writeback. */ | |
8135 | if (rn == 15) | |
8136 | goto illegal_op; | |
b0109805 PB |
8137 | tcg_gen_addi_i32(addr, addr, offset - 4); |
8138 | store_reg(s, rn, addr); | |
8139 | } else { | |
7d1b0095 | 8140 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
8141 | } |
8142 | } else if ((insn & (1 << 23)) == 0) { | |
8143 | /* Load/store exclusive word. */ | |
39d5492a | 8144 | addr = tcg_temp_local_new_i32(); |
98a46317 | 8145 | load_reg_var(s, addr, rn); |
426f5abc | 8146 | tcg_gen_addi_i32(addr, addr, (insn & 0xff) << 2); |
2c0262af | 8147 | if (insn & (1 << 20)) { |
426f5abc | 8148 | gen_load_exclusive(s, rs, 15, addr, 2); |
9ee6e8bb | 8149 | } else { |
426f5abc | 8150 | gen_store_exclusive(s, rd, rs, 15, addr, 2); |
9ee6e8bb | 8151 | } |
39d5492a | 8152 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
8153 | } else if ((insn & (1 << 6)) == 0) { |
8154 | /* Table Branch. */ | |
8155 | if (rn == 15) { | |
7d1b0095 | 8156 | addr = tcg_temp_new_i32(); |
b0109805 | 8157 | tcg_gen_movi_i32(addr, s->pc); |
9ee6e8bb | 8158 | } else { |
b0109805 | 8159 | addr = load_reg(s, rn); |
9ee6e8bb | 8160 | } |
b26eefb6 | 8161 | tmp = load_reg(s, rm); |
b0109805 | 8162 | tcg_gen_add_i32(addr, addr, tmp); |
9ee6e8bb PB |
8163 | if (insn & (1 << 4)) { |
8164 | /* tbh */ | |
b0109805 | 8165 | tcg_gen_add_i32(addr, addr, tmp); |
7d1b0095 | 8166 | tcg_temp_free_i32(tmp); |
b0109805 | 8167 | tmp = gen_ld16u(addr, IS_USER(s)); |
9ee6e8bb | 8168 | } else { /* tbb */ |
7d1b0095 | 8169 | tcg_temp_free_i32(tmp); |
b0109805 | 8170 | tmp = gen_ld8u(addr, IS_USER(s)); |
9ee6e8bb | 8171 | } |
7d1b0095 | 8172 | tcg_temp_free_i32(addr); |
b0109805 PB |
8173 | tcg_gen_shli_i32(tmp, tmp, 1); |
8174 | tcg_gen_addi_i32(tmp, tmp, s->pc); | |
8175 | store_reg(s, 15, tmp); | |
9ee6e8bb PB |
8176 | } else { |
8177 | /* Load/store exclusive byte/halfword/doubleword. */ | |
426f5abc | 8178 | ARCH(7); |
9ee6e8bb | 8179 | op = (insn >> 4) & 0x3; |
426f5abc PB |
8180 | if (op == 2) { |
8181 | goto illegal_op; | |
8182 | } | |
39d5492a | 8183 | addr = tcg_temp_local_new_i32(); |
98a46317 | 8184 | load_reg_var(s, addr, rn); |
9ee6e8bb | 8185 | if (insn & (1 << 20)) { |
426f5abc | 8186 | gen_load_exclusive(s, rs, rd, addr, op); |
9ee6e8bb | 8187 | } else { |
426f5abc | 8188 | gen_store_exclusive(s, rm, rs, rd, addr, op); |
9ee6e8bb | 8189 | } |
39d5492a | 8190 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
8191 | } |
8192 | } else { | |
8193 | /* Load/store multiple, RFE, SRS. */ | |
8194 | if (((insn >> 23) & 1) == ((insn >> 24) & 1)) { | |
00115976 PM |
8195 | /* RFE, SRS: not available in user mode or on M profile */ |
8196 | if (IS_USER(s) || IS_M(env)) { | |
9ee6e8bb | 8197 | goto illegal_op; |
00115976 | 8198 | } |
9ee6e8bb PB |
8199 | if (insn & (1 << 20)) { |
8200 | /* rfe */ | |
b0109805 PB |
8201 | addr = load_reg(s, rn); |
8202 | if ((insn & (1 << 24)) == 0) | |
8203 | tcg_gen_addi_i32(addr, addr, -8); | |
8204 | /* Load PC into tmp and CPSR into tmp2. */ | |
8205 | tmp = gen_ld32(addr, 0); | |
8206 | tcg_gen_addi_i32(addr, addr, 4); | |
8207 | tmp2 = gen_ld32(addr, 0); | |
9ee6e8bb PB |
8208 | if (insn & (1 << 21)) { |
8209 | /* Base writeback. */ | |
b0109805 PB |
8210 | if (insn & (1 << 24)) { |
8211 | tcg_gen_addi_i32(addr, addr, 4); | |
8212 | } else { | |
8213 | tcg_gen_addi_i32(addr, addr, -4); | |
8214 | } | |
8215 | store_reg(s, rn, addr); | |
8216 | } else { | |
7d1b0095 | 8217 | tcg_temp_free_i32(addr); |
9ee6e8bb | 8218 | } |
b0109805 | 8219 | gen_rfe(s, tmp, tmp2); |
9ee6e8bb PB |
8220 | } else { |
8221 | /* srs */ | |
81465888 PM |
8222 | gen_srs(s, (insn & 0x1f), (insn & (1 << 24)) ? 1 : 2, |
8223 | insn & (1 << 21)); | |
9ee6e8bb PB |
8224 | } |
8225 | } else { | |
5856d44e | 8226 | int i, loaded_base = 0; |
39d5492a | 8227 | TCGv_i32 loaded_var; |
9ee6e8bb | 8228 | /* Load/store multiple. */ |
b0109805 | 8229 | addr = load_reg(s, rn); |
9ee6e8bb PB |
8230 | offset = 0; |
8231 | for (i = 0; i < 16; i++) { | |
8232 | if (insn & (1 << i)) | |
8233 | offset += 4; | |
8234 | } | |
8235 | if (insn & (1 << 24)) { | |
b0109805 | 8236 | tcg_gen_addi_i32(addr, addr, -offset); |
9ee6e8bb PB |
8237 | } |
8238 | ||
39d5492a | 8239 | TCGV_UNUSED_I32(loaded_var); |
9ee6e8bb PB |
8240 | for (i = 0; i < 16; i++) { |
8241 | if ((insn & (1 << i)) == 0) | |
8242 | continue; | |
8243 | if (insn & (1 << 20)) { | |
8244 | /* Load. */ | |
b0109805 | 8245 | tmp = gen_ld32(addr, IS_USER(s)); |
9ee6e8bb | 8246 | if (i == 15) { |
b0109805 | 8247 | gen_bx(s, tmp); |
5856d44e YO |
8248 | } else if (i == rn) { |
8249 | loaded_var = tmp; | |
8250 | loaded_base = 1; | |
9ee6e8bb | 8251 | } else { |
b0109805 | 8252 | store_reg(s, i, tmp); |
9ee6e8bb PB |
8253 | } |
8254 | } else { | |
8255 | /* Store. */ | |
b0109805 PB |
8256 | tmp = load_reg(s, i); |
8257 | gen_st32(tmp, addr, IS_USER(s)); | |
9ee6e8bb | 8258 | } |
b0109805 | 8259 | tcg_gen_addi_i32(addr, addr, 4); |
9ee6e8bb | 8260 | } |
5856d44e YO |
8261 | if (loaded_base) { |
8262 | store_reg(s, rn, loaded_var); | |
8263 | } | |
9ee6e8bb PB |
8264 | if (insn & (1 << 21)) { |
8265 | /* Base register writeback. */ | |
8266 | if (insn & (1 << 24)) { | |
b0109805 | 8267 | tcg_gen_addi_i32(addr, addr, -offset); |
9ee6e8bb PB |
8268 | } |
8269 | /* Fault if writeback register is in register list. */ | |
8270 | if (insn & (1 << rn)) | |
8271 | goto illegal_op; | |
b0109805 PB |
8272 | store_reg(s, rn, addr); |
8273 | } else { | |
7d1b0095 | 8274 | tcg_temp_free_i32(addr); |
9ee6e8bb PB |
8275 | } |
8276 | } | |
8277 | } | |
8278 | break; | |
2af9ab77 JB |
8279 | case 5: |
8280 | ||
9ee6e8bb | 8281 | op = (insn >> 21) & 0xf; |
2af9ab77 JB |
8282 | if (op == 6) { |
8283 | /* Halfword pack. */ | |
8284 | tmp = load_reg(s, rn); | |
8285 | tmp2 = load_reg(s, rm); | |
8286 | shift = ((insn >> 10) & 0x1c) | ((insn >> 6) & 0x3); | |
8287 | if (insn & (1 << 5)) { | |
8288 | /* pkhtb */ | |
8289 | if (shift == 0) | |
8290 | shift = 31; | |
8291 | tcg_gen_sari_i32(tmp2, tmp2, shift); | |
8292 | tcg_gen_andi_i32(tmp, tmp, 0xffff0000); | |
8293 | tcg_gen_ext16u_i32(tmp2, tmp2); | |
8294 | } else { | |
8295 | /* pkhbt */ | |
8296 | if (shift) | |
8297 | tcg_gen_shli_i32(tmp2, tmp2, shift); | |
8298 | tcg_gen_ext16u_i32(tmp, tmp); | |
8299 | tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000); | |
8300 | } | |
8301 | tcg_gen_or_i32(tmp, tmp, tmp2); | |
7d1b0095 | 8302 | tcg_temp_free_i32(tmp2); |
3174f8e9 FN |
8303 | store_reg(s, rd, tmp); |
8304 | } else { | |
2af9ab77 JB |
8305 | /* Data processing register constant shift. */ |
8306 | if (rn == 15) { | |
7d1b0095 | 8307 | tmp = tcg_temp_new_i32(); |
2af9ab77 JB |
8308 | tcg_gen_movi_i32(tmp, 0); |
8309 | } else { | |
8310 | tmp = load_reg(s, rn); | |
8311 | } | |
8312 | tmp2 = load_reg(s, rm); | |
8313 | ||
8314 | shiftop = (insn >> 4) & 3; | |
8315 | shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); | |
8316 | conds = (insn & (1 << 20)) != 0; | |
8317 | logic_cc = (conds && thumb2_logic_op(op)); | |
8318 | gen_arm_shift_im(tmp2, shiftop, shift, logic_cc); | |
8319 | if (gen_thumb2_data_op(s, op, conds, 0, tmp, tmp2)) | |
8320 | goto illegal_op; | |
7d1b0095 | 8321 | tcg_temp_free_i32(tmp2); |
2af9ab77 JB |
8322 | if (rd != 15) { |
8323 | store_reg(s, rd, tmp); | |
8324 | } else { | |
7d1b0095 | 8325 | tcg_temp_free_i32(tmp); |
2af9ab77 | 8326 | } |
3174f8e9 | 8327 | } |
9ee6e8bb PB |
8328 | break; |
8329 | case 13: /* Misc data processing. */ | |
8330 | op = ((insn >> 22) & 6) | ((insn >> 7) & 1); | |
8331 | if (op < 4 && (insn & 0xf000) != 0xf000) | |
8332 | goto illegal_op; | |
8333 | switch (op) { | |
8334 | case 0: /* Register controlled shift. */ | |
8984bd2e PB |
8335 | tmp = load_reg(s, rn); |
8336 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
8337 | if ((insn & 0x70) != 0) |
8338 | goto illegal_op; | |
8339 | op = (insn >> 21) & 3; | |
8984bd2e PB |
8340 | logic_cc = (insn & (1 << 20)) != 0; |
8341 | gen_arm_shift_reg(tmp, op, tmp2, logic_cc); | |
8342 | if (logic_cc) | |
8343 | gen_logic_CC(tmp); | |
21aeb343 | 8344 | store_reg_bx(env, s, rd, tmp); |
9ee6e8bb PB |
8345 | break; |
8346 | case 1: /* Sign/zero extend. */ | |
5e3f878a | 8347 | tmp = load_reg(s, rm); |
9ee6e8bb | 8348 | shift = (insn >> 4) & 3; |
1301f322 | 8349 | /* ??? In many cases it's not necessary to do a |
9ee6e8bb PB |
8350 | rotate, a shift is sufficient. */ |
8351 | if (shift != 0) | |
f669df27 | 8352 | tcg_gen_rotri_i32(tmp, tmp, shift * 8); |
9ee6e8bb PB |
8353 | op = (insn >> 20) & 7; |
8354 | switch (op) { | |
5e3f878a PB |
8355 | case 0: gen_sxth(tmp); break; |
8356 | case 1: gen_uxth(tmp); break; | |
8357 | case 2: gen_sxtb16(tmp); break; | |
8358 | case 3: gen_uxtb16(tmp); break; | |
8359 | case 4: gen_sxtb(tmp); break; | |
8360 | case 5: gen_uxtb(tmp); break; | |
9ee6e8bb PB |
8361 | default: goto illegal_op; |
8362 | } | |
8363 | if (rn != 15) { | |
5e3f878a | 8364 | tmp2 = load_reg(s, rn); |
9ee6e8bb | 8365 | if ((op >> 1) == 1) { |
5e3f878a | 8366 | gen_add16(tmp, tmp2); |
9ee6e8bb | 8367 | } else { |
5e3f878a | 8368 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 8369 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8370 | } |
8371 | } | |
5e3f878a | 8372 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8373 | break; |
8374 | case 2: /* SIMD add/subtract. */ | |
8375 | op = (insn >> 20) & 7; | |
8376 | shift = (insn >> 4) & 7; | |
8377 | if ((op & 3) == 3 || (shift & 3) == 3) | |
8378 | goto illegal_op; | |
6ddbc6e4 PB |
8379 | tmp = load_reg(s, rn); |
8380 | tmp2 = load_reg(s, rm); | |
8381 | gen_thumb2_parallel_addsub(op, shift, tmp, tmp2); | |
7d1b0095 | 8382 | tcg_temp_free_i32(tmp2); |
6ddbc6e4 | 8383 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8384 | break; |
8385 | case 3: /* Other data processing. */ | |
8386 | op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7); | |
8387 | if (op < 4) { | |
8388 | /* Saturating add/subtract. */ | |
d9ba4830 PB |
8389 | tmp = load_reg(s, rn); |
8390 | tmp2 = load_reg(s, rm); | |
9ee6e8bb | 8391 | if (op & 1) |
9ef39277 | 8392 | gen_helper_double_saturate(tmp, cpu_env, tmp); |
4809c612 | 8393 | if (op & 2) |
9ef39277 | 8394 | gen_helper_sub_saturate(tmp, cpu_env, tmp2, tmp); |
9ee6e8bb | 8395 | else |
9ef39277 | 8396 | gen_helper_add_saturate(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8397 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8398 | } else { |
d9ba4830 | 8399 | tmp = load_reg(s, rn); |
9ee6e8bb PB |
8400 | switch (op) { |
8401 | case 0x0a: /* rbit */ | |
d9ba4830 | 8402 | gen_helper_rbit(tmp, tmp); |
9ee6e8bb PB |
8403 | break; |
8404 | case 0x08: /* rev */ | |
66896cb8 | 8405 | tcg_gen_bswap32_i32(tmp, tmp); |
9ee6e8bb PB |
8406 | break; |
8407 | case 0x09: /* rev16 */ | |
d9ba4830 | 8408 | gen_rev16(tmp); |
9ee6e8bb PB |
8409 | break; |
8410 | case 0x0b: /* revsh */ | |
d9ba4830 | 8411 | gen_revsh(tmp); |
9ee6e8bb PB |
8412 | break; |
8413 | case 0x10: /* sel */ | |
d9ba4830 | 8414 | tmp2 = load_reg(s, rm); |
7d1b0095 | 8415 | tmp3 = tcg_temp_new_i32(); |
0ecb72a5 | 8416 | tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUARMState, GE)); |
d9ba4830 | 8417 | gen_helper_sel_flags(tmp, tmp3, tmp, tmp2); |
7d1b0095 PM |
8418 | tcg_temp_free_i32(tmp3); |
8419 | tcg_temp_free_i32(tmp2); | |
9ee6e8bb PB |
8420 | break; |
8421 | case 0x18: /* clz */ | |
d9ba4830 | 8422 | gen_helper_clz(tmp, tmp); |
9ee6e8bb PB |
8423 | break; |
8424 | default: | |
8425 | goto illegal_op; | |
8426 | } | |
8427 | } | |
d9ba4830 | 8428 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8429 | break; |
8430 | case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */ | |
8431 | op = (insn >> 4) & 0xf; | |
d9ba4830 PB |
8432 | tmp = load_reg(s, rn); |
8433 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
8434 | switch ((insn >> 20) & 7) { |
8435 | case 0: /* 32 x 32 -> 32 */ | |
d9ba4830 | 8436 | tcg_gen_mul_i32(tmp, tmp, tmp2); |
7d1b0095 | 8437 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8438 | if (rs != 15) { |
d9ba4830 | 8439 | tmp2 = load_reg(s, rs); |
9ee6e8bb | 8440 | if (op) |
d9ba4830 | 8441 | tcg_gen_sub_i32(tmp, tmp2, tmp); |
9ee6e8bb | 8442 | else |
d9ba4830 | 8443 | tcg_gen_add_i32(tmp, tmp, tmp2); |
7d1b0095 | 8444 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8445 | } |
9ee6e8bb PB |
8446 | break; |
8447 | case 1: /* 16 x 16 -> 32 */ | |
d9ba4830 | 8448 | gen_mulxy(tmp, tmp2, op & 2, op & 1); |
7d1b0095 | 8449 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8450 | if (rs != 15) { |
d9ba4830 | 8451 | tmp2 = load_reg(s, rs); |
9ef39277 | 8452 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8453 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8454 | } |
9ee6e8bb PB |
8455 | break; |
8456 | case 2: /* Dual multiply add. */ | |
8457 | case 4: /* Dual multiply subtract. */ | |
8458 | if (op) | |
d9ba4830 PB |
8459 | gen_swap_half(tmp2); |
8460 | gen_smul_dual(tmp, tmp2); | |
9ee6e8bb | 8461 | if (insn & (1 << 22)) { |
e1d177b9 | 8462 | /* This subtraction cannot overflow. */ |
d9ba4830 | 8463 | tcg_gen_sub_i32(tmp, tmp, tmp2); |
9ee6e8bb | 8464 | } else { |
e1d177b9 PM |
8465 | /* This addition cannot overflow 32 bits; |
8466 | * however it may overflow considered as a signed | |
8467 | * operation, in which case we must set the Q flag. | |
8468 | */ | |
9ef39277 | 8469 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 8470 | } |
7d1b0095 | 8471 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8472 | if (rs != 15) |
8473 | { | |
d9ba4830 | 8474 | tmp2 = load_reg(s, rs); |
9ef39277 | 8475 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8476 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8477 | } |
9ee6e8bb PB |
8478 | break; |
8479 | case 3: /* 32 * 16 -> 32msb */ | |
8480 | if (op) | |
d9ba4830 | 8481 | tcg_gen_sari_i32(tmp2, tmp2, 16); |
9ee6e8bb | 8482 | else |
d9ba4830 | 8483 | gen_sxth(tmp2); |
a7812ae4 PB |
8484 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
8485 | tcg_gen_shri_i64(tmp64, tmp64, 16); | |
7d1b0095 | 8486 | tmp = tcg_temp_new_i32(); |
a7812ae4 | 8487 | tcg_gen_trunc_i64_i32(tmp, tmp64); |
b75263d6 | 8488 | tcg_temp_free_i64(tmp64); |
9ee6e8bb PB |
8489 | if (rs != 15) |
8490 | { | |
d9ba4830 | 8491 | tmp2 = load_reg(s, rs); |
9ef39277 | 8492 | gen_helper_add_setq(tmp, cpu_env, tmp, tmp2); |
7d1b0095 | 8493 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8494 | } |
9ee6e8bb | 8495 | break; |
838fa72d AJ |
8496 | case 5: case 6: /* 32 * 32 -> 32msb (SMMUL, SMMLA, SMMLS) */ |
8497 | tmp64 = gen_muls_i64_i32(tmp, tmp2); | |
9ee6e8bb | 8498 | if (rs != 15) { |
838fa72d AJ |
8499 | tmp = load_reg(s, rs); |
8500 | if (insn & (1 << 20)) { | |
8501 | tmp64 = gen_addq_msw(tmp64, tmp); | |
99c475ab | 8502 | } else { |
838fa72d | 8503 | tmp64 = gen_subq_msw(tmp64, tmp); |
99c475ab | 8504 | } |
2c0262af | 8505 | } |
838fa72d AJ |
8506 | if (insn & (1 << 4)) { |
8507 | tcg_gen_addi_i64(tmp64, tmp64, 0x80000000u); | |
8508 | } | |
8509 | tcg_gen_shri_i64(tmp64, tmp64, 32); | |
7d1b0095 | 8510 | tmp = tcg_temp_new_i32(); |
838fa72d AJ |
8511 | tcg_gen_trunc_i64_i32(tmp, tmp64); |
8512 | tcg_temp_free_i64(tmp64); | |
9ee6e8bb PB |
8513 | break; |
8514 | case 7: /* Unsigned sum of absolute differences. */ | |
d9ba4830 | 8515 | gen_helper_usad8(tmp, tmp, tmp2); |
7d1b0095 | 8516 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8517 | if (rs != 15) { |
d9ba4830 PB |
8518 | tmp2 = load_reg(s, rs); |
8519 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
7d1b0095 | 8520 | tcg_temp_free_i32(tmp2); |
5fd46862 | 8521 | } |
9ee6e8bb | 8522 | break; |
2c0262af | 8523 | } |
d9ba4830 | 8524 | store_reg(s, rd, tmp); |
2c0262af | 8525 | break; |
9ee6e8bb PB |
8526 | case 6: case 7: /* 64-bit multiply, Divide. */ |
8527 | op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70); | |
5e3f878a PB |
8528 | tmp = load_reg(s, rn); |
8529 | tmp2 = load_reg(s, rm); | |
9ee6e8bb PB |
8530 | if ((op & 0x50) == 0x10) { |
8531 | /* sdiv, udiv */ | |
47789990 | 8532 | if (!arm_feature(env, ARM_FEATURE_THUMB_DIV)) { |
9ee6e8bb | 8533 | goto illegal_op; |
47789990 | 8534 | } |
9ee6e8bb | 8535 | if (op & 0x20) |
5e3f878a | 8536 | gen_helper_udiv(tmp, tmp, tmp2); |
2c0262af | 8537 | else |
5e3f878a | 8538 | gen_helper_sdiv(tmp, tmp, tmp2); |
7d1b0095 | 8539 | tcg_temp_free_i32(tmp2); |
5e3f878a | 8540 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8541 | } else if ((op & 0xe) == 0xc) { |
8542 | /* Dual multiply accumulate long. */ | |
8543 | if (op & 1) | |
5e3f878a PB |
8544 | gen_swap_half(tmp2); |
8545 | gen_smul_dual(tmp, tmp2); | |
9ee6e8bb | 8546 | if (op & 0x10) { |
5e3f878a | 8547 | tcg_gen_sub_i32(tmp, tmp, tmp2); |
b5ff1b31 | 8548 | } else { |
5e3f878a | 8549 | tcg_gen_add_i32(tmp, tmp, tmp2); |
b5ff1b31 | 8550 | } |
7d1b0095 | 8551 | tcg_temp_free_i32(tmp2); |
a7812ae4 PB |
8552 | /* BUGFIX */ |
8553 | tmp64 = tcg_temp_new_i64(); | |
8554 | tcg_gen_ext_i32_i64(tmp64, tmp); | |
7d1b0095 | 8555 | tcg_temp_free_i32(tmp); |
a7812ae4 PB |
8556 | gen_addq(s, tmp64, rs, rd); |
8557 | gen_storeq_reg(s, rs, rd, tmp64); | |
b75263d6 | 8558 | tcg_temp_free_i64(tmp64); |
2c0262af | 8559 | } else { |
9ee6e8bb PB |
8560 | if (op & 0x20) { |
8561 | /* Unsigned 64-bit multiply */ | |
a7812ae4 | 8562 | tmp64 = gen_mulu_i64_i32(tmp, tmp2); |
b5ff1b31 | 8563 | } else { |
9ee6e8bb PB |
8564 | if (op & 8) { |
8565 | /* smlalxy */ | |
5e3f878a | 8566 | gen_mulxy(tmp, tmp2, op & 2, op & 1); |
7d1b0095 | 8567 | tcg_temp_free_i32(tmp2); |
a7812ae4 PB |
8568 | tmp64 = tcg_temp_new_i64(); |
8569 | tcg_gen_ext_i32_i64(tmp64, tmp); | |
7d1b0095 | 8570 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8571 | } else { |
8572 | /* Signed 64-bit multiply */ | |
a7812ae4 | 8573 | tmp64 = gen_muls_i64_i32(tmp, tmp2); |
9ee6e8bb | 8574 | } |
b5ff1b31 | 8575 | } |
9ee6e8bb PB |
8576 | if (op & 4) { |
8577 | /* umaal */ | |
a7812ae4 PB |
8578 | gen_addq_lo(s, tmp64, rs); |
8579 | gen_addq_lo(s, tmp64, rd); | |
9ee6e8bb PB |
8580 | } else if (op & 0x40) { |
8581 | /* 64-bit accumulate. */ | |
a7812ae4 | 8582 | gen_addq(s, tmp64, rs, rd); |
9ee6e8bb | 8583 | } |
a7812ae4 | 8584 | gen_storeq_reg(s, rs, rd, tmp64); |
b75263d6 | 8585 | tcg_temp_free_i64(tmp64); |
5fd46862 | 8586 | } |
2c0262af | 8587 | break; |
9ee6e8bb PB |
8588 | } |
8589 | break; | |
8590 | case 6: case 7: case 14: case 15: | |
8591 | /* Coprocessor. */ | |
8592 | if (((insn >> 24) & 3) == 3) { | |
8593 | /* Translate into the equivalent ARM encoding. */ | |
f06053e3 | 8594 | insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4) | (1 << 28); |
9ee6e8bb PB |
8595 | if (disas_neon_data_insn(env, s, insn)) |
8596 | goto illegal_op; | |
8597 | } else { | |
8598 | if (insn & (1 << 28)) | |
8599 | goto illegal_op; | |
8600 | if (disas_coproc_insn (env, s, insn)) | |
8601 | goto illegal_op; | |
8602 | } | |
8603 | break; | |
8604 | case 8: case 9: case 10: case 11: | |
8605 | if (insn & (1 << 15)) { | |
8606 | /* Branches, misc control. */ | |
8607 | if (insn & 0x5000) { | |
8608 | /* Unconditional branch. */ | |
8609 | /* signextend(hw1[10:0]) -> offset[:12]. */ | |
8610 | offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff; | |
8611 | /* hw1[10:0] -> offset[11:1]. */ | |
8612 | offset |= (insn & 0x7ff) << 1; | |
8613 | /* (~hw2[13, 11] ^ offset[24]) -> offset[23,22] | |
8614 | offset[24:22] already have the same value because of the | |
8615 | sign extension above. */ | |
8616 | offset ^= ((~insn) & (1 << 13)) << 10; | |
8617 | offset ^= ((~insn) & (1 << 11)) << 11; | |
8618 | ||
9ee6e8bb PB |
8619 | if (insn & (1 << 14)) { |
8620 | /* Branch and link. */ | |
3174f8e9 | 8621 | tcg_gen_movi_i32(cpu_R[14], s->pc | 1); |
b5ff1b31 | 8622 | } |
3b46e624 | 8623 | |
b0109805 | 8624 | offset += s->pc; |
9ee6e8bb PB |
8625 | if (insn & (1 << 12)) { |
8626 | /* b/bl */ | |
b0109805 | 8627 | gen_jmp(s, offset); |
9ee6e8bb PB |
8628 | } else { |
8629 | /* blx */ | |
b0109805 | 8630 | offset &= ~(uint32_t)2; |
be5e7a76 | 8631 | /* thumb2 bx, no need to check */ |
b0109805 | 8632 | gen_bx_im(s, offset); |
2c0262af | 8633 | } |
9ee6e8bb PB |
8634 | } else if (((insn >> 23) & 7) == 7) { |
8635 | /* Misc control */ | |
8636 | if (insn & (1 << 13)) | |
8637 | goto illegal_op; | |
8638 | ||
8639 | if (insn & (1 << 26)) { | |
8640 | /* Secure monitor call (v6Z) */ | |
8641 | goto illegal_op; /* not implemented. */ | |
2c0262af | 8642 | } else { |
9ee6e8bb PB |
8643 | op = (insn >> 20) & 7; |
8644 | switch (op) { | |
8645 | case 0: /* msr cpsr. */ | |
8646 | if (IS_M(env)) { | |
8984bd2e PB |
8647 | tmp = load_reg(s, rn); |
8648 | addr = tcg_const_i32(insn & 0xff); | |
8649 | gen_helper_v7m_msr(cpu_env, addr, tmp); | |
b75263d6 | 8650 | tcg_temp_free_i32(addr); |
7d1b0095 | 8651 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
8652 | gen_lookup_tb(s); |
8653 | break; | |
8654 | } | |
8655 | /* fall through */ | |
8656 | case 1: /* msr spsr. */ | |
8657 | if (IS_M(env)) | |
8658 | goto illegal_op; | |
2fbac54b FN |
8659 | tmp = load_reg(s, rn); |
8660 | if (gen_set_psr(s, | |
9ee6e8bb | 8661 | msr_mask(env, s, (insn >> 8) & 0xf, op == 1), |
2fbac54b | 8662 | op == 1, tmp)) |
9ee6e8bb PB |
8663 | goto illegal_op; |
8664 | break; | |
8665 | case 2: /* cps, nop-hint. */ | |
8666 | if (((insn >> 8) & 7) == 0) { | |
8667 | gen_nop_hint(s, insn & 0xff); | |
8668 | } | |
8669 | /* Implemented as NOP in user mode. */ | |
8670 | if (IS_USER(s)) | |
8671 | break; | |
8672 | offset = 0; | |
8673 | imm = 0; | |
8674 | if (insn & (1 << 10)) { | |
8675 | if (insn & (1 << 7)) | |
8676 | offset |= CPSR_A; | |
8677 | if (insn & (1 << 6)) | |
8678 | offset |= CPSR_I; | |
8679 | if (insn & (1 << 5)) | |
8680 | offset |= CPSR_F; | |
8681 | if (insn & (1 << 9)) | |
8682 | imm = CPSR_A | CPSR_I | CPSR_F; | |
8683 | } | |
8684 | if (insn & (1 << 8)) { | |
8685 | offset |= 0x1f; | |
8686 | imm |= (insn & 0x1f); | |
8687 | } | |
8688 | if (offset) { | |
2fbac54b | 8689 | gen_set_psr_im(s, offset, 0, imm); |
9ee6e8bb PB |
8690 | } |
8691 | break; | |
8692 | case 3: /* Special control operations. */ | |
426f5abc | 8693 | ARCH(7); |
9ee6e8bb PB |
8694 | op = (insn >> 4) & 0xf; |
8695 | switch (op) { | |
8696 | case 2: /* clrex */ | |
426f5abc | 8697 | gen_clrex(s); |
9ee6e8bb PB |
8698 | break; |
8699 | case 4: /* dsb */ | |
8700 | case 5: /* dmb */ | |
8701 | case 6: /* isb */ | |
8702 | /* These execute as NOPs. */ | |
9ee6e8bb PB |
8703 | break; |
8704 | default: | |
8705 | goto illegal_op; | |
8706 | } | |
8707 | break; | |
8708 | case 4: /* bxj */ | |
8709 | /* Trivial implementation equivalent to bx. */ | |
d9ba4830 PB |
8710 | tmp = load_reg(s, rn); |
8711 | gen_bx(s, tmp); | |
9ee6e8bb PB |
8712 | break; |
8713 | case 5: /* Exception return. */ | |
b8b45b68 RV |
8714 | if (IS_USER(s)) { |
8715 | goto illegal_op; | |
8716 | } | |
8717 | if (rn != 14 || rd != 15) { | |
8718 | goto illegal_op; | |
8719 | } | |
8720 | tmp = load_reg(s, rn); | |
8721 | tcg_gen_subi_i32(tmp, tmp, insn & 0xff); | |
8722 | gen_exception_return(s, tmp); | |
8723 | break; | |
9ee6e8bb | 8724 | case 6: /* mrs cpsr. */ |
7d1b0095 | 8725 | tmp = tcg_temp_new_i32(); |
9ee6e8bb | 8726 | if (IS_M(env)) { |
8984bd2e PB |
8727 | addr = tcg_const_i32(insn & 0xff); |
8728 | gen_helper_v7m_mrs(tmp, cpu_env, addr); | |
b75263d6 | 8729 | tcg_temp_free_i32(addr); |
9ee6e8bb | 8730 | } else { |
9ef39277 | 8731 | gen_helper_cpsr_read(tmp, cpu_env); |
9ee6e8bb | 8732 | } |
8984bd2e | 8733 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8734 | break; |
8735 | case 7: /* mrs spsr. */ | |
8736 | /* Not accessible in user mode. */ | |
8737 | if (IS_USER(s) || IS_M(env)) | |
8738 | goto illegal_op; | |
d9ba4830 PB |
8739 | tmp = load_cpu_field(spsr); |
8740 | store_reg(s, rd, tmp); | |
9ee6e8bb | 8741 | break; |
2c0262af FB |
8742 | } |
8743 | } | |
9ee6e8bb PB |
8744 | } else { |
8745 | /* Conditional branch. */ | |
8746 | op = (insn >> 22) & 0xf; | |
8747 | /* Generate a conditional jump to next instruction. */ | |
8748 | s->condlabel = gen_new_label(); | |
d9ba4830 | 8749 | gen_test_cc(op ^ 1, s->condlabel); |
9ee6e8bb PB |
8750 | s->condjmp = 1; |
8751 | ||
8752 | /* offset[11:1] = insn[10:0] */ | |
8753 | offset = (insn & 0x7ff) << 1; | |
8754 | /* offset[17:12] = insn[21:16]. */ | |
8755 | offset |= (insn & 0x003f0000) >> 4; | |
8756 | /* offset[31:20] = insn[26]. */ | |
8757 | offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11; | |
8758 | /* offset[18] = insn[13]. */ | |
8759 | offset |= (insn & (1 << 13)) << 5; | |
8760 | /* offset[19] = insn[11]. */ | |
8761 | offset |= (insn & (1 << 11)) << 8; | |
8762 | ||
8763 | /* jump to the offset */ | |
b0109805 | 8764 | gen_jmp(s, s->pc + offset); |
9ee6e8bb PB |
8765 | } |
8766 | } else { | |
8767 | /* Data processing immediate. */ | |
8768 | if (insn & (1 << 25)) { | |
8769 | if (insn & (1 << 24)) { | |
8770 | if (insn & (1 << 20)) | |
8771 | goto illegal_op; | |
8772 | /* Bitfield/Saturate. */ | |
8773 | op = (insn >> 21) & 7; | |
8774 | imm = insn & 0x1f; | |
8775 | shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); | |
6ddbc6e4 | 8776 | if (rn == 15) { |
7d1b0095 | 8777 | tmp = tcg_temp_new_i32(); |
6ddbc6e4 PB |
8778 | tcg_gen_movi_i32(tmp, 0); |
8779 | } else { | |
8780 | tmp = load_reg(s, rn); | |
8781 | } | |
9ee6e8bb PB |
8782 | switch (op) { |
8783 | case 2: /* Signed bitfield extract. */ | |
8784 | imm++; | |
8785 | if (shift + imm > 32) | |
8786 | goto illegal_op; | |
8787 | if (imm < 32) | |
6ddbc6e4 | 8788 | gen_sbfx(tmp, shift, imm); |
9ee6e8bb PB |
8789 | break; |
8790 | case 6: /* Unsigned bitfield extract. */ | |
8791 | imm++; | |
8792 | if (shift + imm > 32) | |
8793 | goto illegal_op; | |
8794 | if (imm < 32) | |
6ddbc6e4 | 8795 | gen_ubfx(tmp, shift, (1u << imm) - 1); |
9ee6e8bb PB |
8796 | break; |
8797 | case 3: /* Bitfield insert/clear. */ | |
8798 | if (imm < shift) | |
8799 | goto illegal_op; | |
8800 | imm = imm + 1 - shift; | |
8801 | if (imm != 32) { | |
6ddbc6e4 | 8802 | tmp2 = load_reg(s, rd); |
d593c48e | 8803 | tcg_gen_deposit_i32(tmp, tmp2, tmp, shift, imm); |
7d1b0095 | 8804 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8805 | } |
8806 | break; | |
8807 | case 7: | |
8808 | goto illegal_op; | |
8809 | default: /* Saturate. */ | |
9ee6e8bb PB |
8810 | if (shift) { |
8811 | if (op & 1) | |
6ddbc6e4 | 8812 | tcg_gen_sari_i32(tmp, tmp, shift); |
9ee6e8bb | 8813 | else |
6ddbc6e4 | 8814 | tcg_gen_shli_i32(tmp, tmp, shift); |
9ee6e8bb | 8815 | } |
6ddbc6e4 | 8816 | tmp2 = tcg_const_i32(imm); |
9ee6e8bb PB |
8817 | if (op & 4) { |
8818 | /* Unsigned. */ | |
9ee6e8bb | 8819 | if ((op & 1) && shift == 0) |
9ef39277 | 8820 | gen_helper_usat16(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 8821 | else |
9ef39277 | 8822 | gen_helper_usat(tmp, cpu_env, tmp, tmp2); |
2c0262af | 8823 | } else { |
9ee6e8bb | 8824 | /* Signed. */ |
9ee6e8bb | 8825 | if ((op & 1) && shift == 0) |
9ef39277 | 8826 | gen_helper_ssat16(tmp, cpu_env, tmp, tmp2); |
9ee6e8bb | 8827 | else |
9ef39277 | 8828 | gen_helper_ssat(tmp, cpu_env, tmp, tmp2); |
2c0262af | 8829 | } |
b75263d6 | 8830 | tcg_temp_free_i32(tmp2); |
9ee6e8bb | 8831 | break; |
2c0262af | 8832 | } |
6ddbc6e4 | 8833 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
8834 | } else { |
8835 | imm = ((insn & 0x04000000) >> 15) | |
8836 | | ((insn & 0x7000) >> 4) | (insn & 0xff); | |
8837 | if (insn & (1 << 22)) { | |
8838 | /* 16-bit immediate. */ | |
8839 | imm |= (insn >> 4) & 0xf000; | |
8840 | if (insn & (1 << 23)) { | |
8841 | /* movt */ | |
5e3f878a | 8842 | tmp = load_reg(s, rd); |
86831435 | 8843 | tcg_gen_ext16u_i32(tmp, tmp); |
5e3f878a | 8844 | tcg_gen_ori_i32(tmp, tmp, imm << 16); |
2c0262af | 8845 | } else { |
9ee6e8bb | 8846 | /* movw */ |
7d1b0095 | 8847 | tmp = tcg_temp_new_i32(); |
5e3f878a | 8848 | tcg_gen_movi_i32(tmp, imm); |
2c0262af FB |
8849 | } |
8850 | } else { | |
9ee6e8bb PB |
8851 | /* Add/sub 12-bit immediate. */ |
8852 | if (rn == 15) { | |
b0109805 | 8853 | offset = s->pc & ~(uint32_t)3; |
9ee6e8bb | 8854 | if (insn & (1 << 23)) |
b0109805 | 8855 | offset -= imm; |
9ee6e8bb | 8856 | else |
b0109805 | 8857 | offset += imm; |
7d1b0095 | 8858 | tmp = tcg_temp_new_i32(); |
5e3f878a | 8859 | tcg_gen_movi_i32(tmp, offset); |
2c0262af | 8860 | } else { |
5e3f878a | 8861 | tmp = load_reg(s, rn); |
9ee6e8bb | 8862 | if (insn & (1 << 23)) |
5e3f878a | 8863 | tcg_gen_subi_i32(tmp, tmp, imm); |
9ee6e8bb | 8864 | else |
5e3f878a | 8865 | tcg_gen_addi_i32(tmp, tmp, imm); |
2c0262af | 8866 | } |
9ee6e8bb | 8867 | } |
5e3f878a | 8868 | store_reg(s, rd, tmp); |
191abaa2 | 8869 | } |
9ee6e8bb PB |
8870 | } else { |
8871 | int shifter_out = 0; | |
8872 | /* modified 12-bit immediate. */ | |
8873 | shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12); | |
8874 | imm = (insn & 0xff); | |
8875 | switch (shift) { | |
8876 | case 0: /* XY */ | |
8877 | /* Nothing to do. */ | |
8878 | break; | |
8879 | case 1: /* 00XY00XY */ | |
8880 | imm |= imm << 16; | |
8881 | break; | |
8882 | case 2: /* XY00XY00 */ | |
8883 | imm |= imm << 16; | |
8884 | imm <<= 8; | |
8885 | break; | |
8886 | case 3: /* XYXYXYXY */ | |
8887 | imm |= imm << 16; | |
8888 | imm |= imm << 8; | |
8889 | break; | |
8890 | default: /* Rotated constant. */ | |
8891 | shift = (shift << 1) | (imm >> 7); | |
8892 | imm |= 0x80; | |
8893 | imm = imm << (32 - shift); | |
8894 | shifter_out = 1; | |
8895 | break; | |
b5ff1b31 | 8896 | } |
7d1b0095 | 8897 | tmp2 = tcg_temp_new_i32(); |
3174f8e9 | 8898 | tcg_gen_movi_i32(tmp2, imm); |
9ee6e8bb | 8899 | rn = (insn >> 16) & 0xf; |
3174f8e9 | 8900 | if (rn == 15) { |
7d1b0095 | 8901 | tmp = tcg_temp_new_i32(); |
3174f8e9 FN |
8902 | tcg_gen_movi_i32(tmp, 0); |
8903 | } else { | |
8904 | tmp = load_reg(s, rn); | |
8905 | } | |
9ee6e8bb PB |
8906 | op = (insn >> 21) & 0xf; |
8907 | if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0, | |
3174f8e9 | 8908 | shifter_out, tmp, tmp2)) |
9ee6e8bb | 8909 | goto illegal_op; |
7d1b0095 | 8910 | tcg_temp_free_i32(tmp2); |
9ee6e8bb PB |
8911 | rd = (insn >> 8) & 0xf; |
8912 | if (rd != 15) { | |
3174f8e9 FN |
8913 | store_reg(s, rd, tmp); |
8914 | } else { | |
7d1b0095 | 8915 | tcg_temp_free_i32(tmp); |
2c0262af | 8916 | } |
2c0262af | 8917 | } |
9ee6e8bb PB |
8918 | } |
8919 | break; | |
8920 | case 12: /* Load/store single data item. */ | |
8921 | { | |
8922 | int postinc = 0; | |
8923 | int writeback = 0; | |
b0109805 | 8924 | int user; |
9ee6e8bb PB |
8925 | if ((insn & 0x01100000) == 0x01000000) { |
8926 | if (disas_neon_ls_insn(env, s, insn)) | |
c1713132 | 8927 | goto illegal_op; |
9ee6e8bb PB |
8928 | break; |
8929 | } | |
a2fdc890 PM |
8930 | op = ((insn >> 21) & 3) | ((insn >> 22) & 4); |
8931 | if (rs == 15) { | |
8932 | if (!(insn & (1 << 20))) { | |
8933 | goto illegal_op; | |
8934 | } | |
8935 | if (op != 2) { | |
8936 | /* Byte or halfword load space with dest == r15 : memory hints. | |
8937 | * Catch them early so we don't emit pointless addressing code. | |
8938 | * This space is a mix of: | |
8939 | * PLD/PLDW/PLI, which we implement as NOPs (note that unlike | |
8940 | * the ARM encodings, PLDW space doesn't UNDEF for non-v7MP | |
8941 | * cores) | |
8942 | * unallocated hints, which must be treated as NOPs | |
8943 | * UNPREDICTABLE space, which we NOP or UNDEF depending on | |
8944 | * which is easiest for the decoding logic | |
8945 | * Some space which must UNDEF | |
8946 | */ | |
8947 | int op1 = (insn >> 23) & 3; | |
8948 | int op2 = (insn >> 6) & 0x3f; | |
8949 | if (op & 2) { | |
8950 | goto illegal_op; | |
8951 | } | |
8952 | if (rn == 15) { | |
02afbf64 PM |
8953 | /* UNPREDICTABLE, unallocated hint or |
8954 | * PLD/PLDW/PLI (literal) | |
8955 | */ | |
a2fdc890 PM |
8956 | return 0; |
8957 | } | |
8958 | if (op1 & 1) { | |
02afbf64 | 8959 | return 0; /* PLD/PLDW/PLI or unallocated hint */ |
a2fdc890 PM |
8960 | } |
8961 | if ((op2 == 0) || ((op2 & 0x3c) == 0x30)) { | |
02afbf64 | 8962 | return 0; /* PLD/PLDW/PLI or unallocated hint */ |
a2fdc890 PM |
8963 | } |
8964 | /* UNDEF space, or an UNPREDICTABLE */ | |
8965 | return 1; | |
8966 | } | |
8967 | } | |
b0109805 | 8968 | user = IS_USER(s); |
9ee6e8bb | 8969 | if (rn == 15) { |
7d1b0095 | 8970 | addr = tcg_temp_new_i32(); |
9ee6e8bb PB |
8971 | /* PC relative. */ |
8972 | /* s->pc has already been incremented by 4. */ | |
8973 | imm = s->pc & 0xfffffffc; | |
8974 | if (insn & (1 << 23)) | |
8975 | imm += insn & 0xfff; | |
8976 | else | |
8977 | imm -= insn & 0xfff; | |
b0109805 | 8978 | tcg_gen_movi_i32(addr, imm); |
9ee6e8bb | 8979 | } else { |
b0109805 | 8980 | addr = load_reg(s, rn); |
9ee6e8bb PB |
8981 | if (insn & (1 << 23)) { |
8982 | /* Positive offset. */ | |
8983 | imm = insn & 0xfff; | |
b0109805 | 8984 | tcg_gen_addi_i32(addr, addr, imm); |
9ee6e8bb | 8985 | } else { |
9ee6e8bb | 8986 | imm = insn & 0xff; |
2a0308c5 PM |
8987 | switch ((insn >> 8) & 0xf) { |
8988 | case 0x0: /* Shifted Register. */ | |
9ee6e8bb | 8989 | shift = (insn >> 4) & 0xf; |
2a0308c5 PM |
8990 | if (shift > 3) { |
8991 | tcg_temp_free_i32(addr); | |
18c9b560 | 8992 | goto illegal_op; |
2a0308c5 | 8993 | } |
b26eefb6 | 8994 | tmp = load_reg(s, rm); |
9ee6e8bb | 8995 | if (shift) |
b26eefb6 | 8996 | tcg_gen_shli_i32(tmp, tmp, shift); |
b0109805 | 8997 | tcg_gen_add_i32(addr, addr, tmp); |
7d1b0095 | 8998 | tcg_temp_free_i32(tmp); |
9ee6e8bb | 8999 | break; |
2a0308c5 | 9000 | case 0xc: /* Negative offset. */ |
b0109805 | 9001 | tcg_gen_addi_i32(addr, addr, -imm); |
9ee6e8bb | 9002 | break; |
2a0308c5 | 9003 | case 0xe: /* User privilege. */ |
b0109805 PB |
9004 | tcg_gen_addi_i32(addr, addr, imm); |
9005 | user = 1; | |
9ee6e8bb | 9006 | break; |
2a0308c5 | 9007 | case 0x9: /* Post-decrement. */ |
9ee6e8bb PB |
9008 | imm = -imm; |
9009 | /* Fall through. */ | |
2a0308c5 | 9010 | case 0xb: /* Post-increment. */ |
9ee6e8bb PB |
9011 | postinc = 1; |
9012 | writeback = 1; | |
9013 | break; | |
2a0308c5 | 9014 | case 0xd: /* Pre-decrement. */ |
9ee6e8bb PB |
9015 | imm = -imm; |
9016 | /* Fall through. */ | |
2a0308c5 | 9017 | case 0xf: /* Pre-increment. */ |
b0109805 | 9018 | tcg_gen_addi_i32(addr, addr, imm); |
9ee6e8bb PB |
9019 | writeback = 1; |
9020 | break; | |
9021 | default: | |
2a0308c5 | 9022 | tcg_temp_free_i32(addr); |
b7bcbe95 | 9023 | goto illegal_op; |
9ee6e8bb PB |
9024 | } |
9025 | } | |
9026 | } | |
9ee6e8bb PB |
9027 | if (insn & (1 << 20)) { |
9028 | /* Load. */ | |
a2fdc890 PM |
9029 | switch (op) { |
9030 | case 0: tmp = gen_ld8u(addr, user); break; | |
9031 | case 4: tmp = gen_ld8s(addr, user); break; | |
9032 | case 1: tmp = gen_ld16u(addr, user); break; | |
9033 | case 5: tmp = gen_ld16s(addr, user); break; | |
9034 | case 2: tmp = gen_ld32(addr, user); break; | |
2a0308c5 PM |
9035 | default: |
9036 | tcg_temp_free_i32(addr); | |
9037 | goto illegal_op; | |
a2fdc890 PM |
9038 | } |
9039 | if (rs == 15) { | |
9040 | gen_bx(s, tmp); | |
9ee6e8bb | 9041 | } else { |
a2fdc890 | 9042 | store_reg(s, rs, tmp); |
9ee6e8bb PB |
9043 | } |
9044 | } else { | |
9045 | /* Store. */ | |
b0109805 | 9046 | tmp = load_reg(s, rs); |
9ee6e8bb | 9047 | switch (op) { |
b0109805 PB |
9048 | case 0: gen_st8(tmp, addr, user); break; |
9049 | case 1: gen_st16(tmp, addr, user); break; | |
9050 | case 2: gen_st32(tmp, addr, user); break; | |
2a0308c5 PM |
9051 | default: |
9052 | tcg_temp_free_i32(addr); | |
9053 | goto illegal_op; | |
b7bcbe95 | 9054 | } |
2c0262af | 9055 | } |
9ee6e8bb | 9056 | if (postinc) |
b0109805 PB |
9057 | tcg_gen_addi_i32(addr, addr, imm); |
9058 | if (writeback) { | |
9059 | store_reg(s, rn, addr); | |
9060 | } else { | |
7d1b0095 | 9061 | tcg_temp_free_i32(addr); |
b0109805 | 9062 | } |
9ee6e8bb PB |
9063 | } |
9064 | break; | |
9065 | default: | |
9066 | goto illegal_op; | |
2c0262af | 9067 | } |
9ee6e8bb PB |
9068 | return 0; |
9069 | illegal_op: | |
9070 | return 1; | |
2c0262af FB |
9071 | } |
9072 | ||
0ecb72a5 | 9073 | static void disas_thumb_insn(CPUARMState *env, DisasContext *s) |
99c475ab FB |
9074 | { |
9075 | uint32_t val, insn, op, rm, rn, rd, shift, cond; | |
9076 | int32_t offset; | |
9077 | int i; | |
39d5492a PM |
9078 | TCGv_i32 tmp; |
9079 | TCGv_i32 tmp2; | |
9080 | TCGv_i32 addr; | |
99c475ab | 9081 | |
9ee6e8bb PB |
9082 | if (s->condexec_mask) { |
9083 | cond = s->condexec_cond; | |
bedd2912 JB |
9084 | if (cond != 0x0e) { /* Skip conditional when condition is AL. */ |
9085 | s->condlabel = gen_new_label(); | |
9086 | gen_test_cc(cond ^ 1, s->condlabel); | |
9087 | s->condjmp = 1; | |
9088 | } | |
9ee6e8bb PB |
9089 | } |
9090 | ||
d31dd73e | 9091 | insn = arm_lduw_code(env, s->pc, s->bswap_code); |
99c475ab | 9092 | s->pc += 2; |
b5ff1b31 | 9093 | |
99c475ab FB |
9094 | switch (insn >> 12) { |
9095 | case 0: case 1: | |
396e467c | 9096 | |
99c475ab FB |
9097 | rd = insn & 7; |
9098 | op = (insn >> 11) & 3; | |
9099 | if (op == 3) { | |
9100 | /* add/subtract */ | |
9101 | rn = (insn >> 3) & 7; | |
396e467c | 9102 | tmp = load_reg(s, rn); |
99c475ab FB |
9103 | if (insn & (1 << 10)) { |
9104 | /* immediate */ | |
7d1b0095 | 9105 | tmp2 = tcg_temp_new_i32(); |
396e467c | 9106 | tcg_gen_movi_i32(tmp2, (insn >> 6) & 7); |
99c475ab FB |
9107 | } else { |
9108 | /* reg */ | |
9109 | rm = (insn >> 6) & 7; | |
396e467c | 9110 | tmp2 = load_reg(s, rm); |
99c475ab | 9111 | } |
9ee6e8bb PB |
9112 | if (insn & (1 << 9)) { |
9113 | if (s->condexec_mask) | |
396e467c | 9114 | tcg_gen_sub_i32(tmp, tmp, tmp2); |
9ee6e8bb | 9115 | else |
72485ec4 | 9116 | gen_sub_CC(tmp, tmp, tmp2); |
9ee6e8bb PB |
9117 | } else { |
9118 | if (s->condexec_mask) | |
396e467c | 9119 | tcg_gen_add_i32(tmp, tmp, tmp2); |
9ee6e8bb | 9120 | else |
72485ec4 | 9121 | gen_add_CC(tmp, tmp, tmp2); |
9ee6e8bb | 9122 | } |
7d1b0095 | 9123 | tcg_temp_free_i32(tmp2); |
396e467c | 9124 | store_reg(s, rd, tmp); |
99c475ab FB |
9125 | } else { |
9126 | /* shift immediate */ | |
9127 | rm = (insn >> 3) & 7; | |
9128 | shift = (insn >> 6) & 0x1f; | |
9a119ff6 PB |
9129 | tmp = load_reg(s, rm); |
9130 | gen_arm_shift_im(tmp, op, shift, s->condexec_mask == 0); | |
9131 | if (!s->condexec_mask) | |
9132 | gen_logic_CC(tmp); | |
9133 | store_reg(s, rd, tmp); | |
99c475ab FB |
9134 | } |
9135 | break; | |
9136 | case 2: case 3: | |
9137 | /* arithmetic large immediate */ | |
9138 | op = (insn >> 11) & 3; | |
9139 | rd = (insn >> 8) & 0x7; | |
396e467c | 9140 | if (op == 0) { /* mov */ |
7d1b0095 | 9141 | tmp = tcg_temp_new_i32(); |
396e467c | 9142 | tcg_gen_movi_i32(tmp, insn & 0xff); |
9ee6e8bb | 9143 | if (!s->condexec_mask) |
396e467c FN |
9144 | gen_logic_CC(tmp); |
9145 | store_reg(s, rd, tmp); | |
9146 | } else { | |
9147 | tmp = load_reg(s, rd); | |
7d1b0095 | 9148 | tmp2 = tcg_temp_new_i32(); |
396e467c FN |
9149 | tcg_gen_movi_i32(tmp2, insn & 0xff); |
9150 | switch (op) { | |
9151 | case 1: /* cmp */ | |
72485ec4 | 9152 | gen_sub_CC(tmp, tmp, tmp2); |
7d1b0095 PM |
9153 | tcg_temp_free_i32(tmp); |
9154 | tcg_temp_free_i32(tmp2); | |
396e467c FN |
9155 | break; |
9156 | case 2: /* add */ | |
9157 | if (s->condexec_mask) | |
9158 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
9159 | else | |
72485ec4 | 9160 | gen_add_CC(tmp, tmp, tmp2); |
7d1b0095 | 9161 | tcg_temp_free_i32(tmp2); |
396e467c FN |
9162 | store_reg(s, rd, tmp); |
9163 | break; | |
9164 | case 3: /* sub */ | |
9165 | if (s->condexec_mask) | |
9166 | tcg_gen_sub_i32(tmp, tmp, tmp2); | |
9167 | else | |
72485ec4 | 9168 | gen_sub_CC(tmp, tmp, tmp2); |
7d1b0095 | 9169 | tcg_temp_free_i32(tmp2); |
396e467c FN |
9170 | store_reg(s, rd, tmp); |
9171 | break; | |
9172 | } | |
99c475ab | 9173 | } |
99c475ab FB |
9174 | break; |
9175 | case 4: | |
9176 | if (insn & (1 << 11)) { | |
9177 | rd = (insn >> 8) & 7; | |
5899f386 FB |
9178 | /* load pc-relative. Bit 1 of PC is ignored. */ |
9179 | val = s->pc + 2 + ((insn & 0xff) * 4); | |
9180 | val &= ~(uint32_t)2; | |
7d1b0095 | 9181 | addr = tcg_temp_new_i32(); |
b0109805 PB |
9182 | tcg_gen_movi_i32(addr, val); |
9183 | tmp = gen_ld32(addr, IS_USER(s)); | |
7d1b0095 | 9184 | tcg_temp_free_i32(addr); |
b0109805 | 9185 | store_reg(s, rd, tmp); |
99c475ab FB |
9186 | break; |
9187 | } | |
9188 | if (insn & (1 << 10)) { | |
9189 | /* data processing extended or blx */ | |
9190 | rd = (insn & 7) | ((insn >> 4) & 8); | |
9191 | rm = (insn >> 3) & 0xf; | |
9192 | op = (insn >> 8) & 3; | |
9193 | switch (op) { | |
9194 | case 0: /* add */ | |
396e467c FN |
9195 | tmp = load_reg(s, rd); |
9196 | tmp2 = load_reg(s, rm); | |
9197 | tcg_gen_add_i32(tmp, tmp, tmp2); | |
7d1b0095 | 9198 | tcg_temp_free_i32(tmp2); |
396e467c | 9199 | store_reg(s, rd, tmp); |
99c475ab FB |
9200 | break; |
9201 | case 1: /* cmp */ | |
396e467c FN |
9202 | tmp = load_reg(s, rd); |
9203 | tmp2 = load_reg(s, rm); | |
72485ec4 | 9204 | gen_sub_CC(tmp, tmp, tmp2); |
7d1b0095 PM |
9205 | tcg_temp_free_i32(tmp2); |
9206 | tcg_temp_free_i32(tmp); | |
99c475ab FB |
9207 | break; |
9208 | case 2: /* mov/cpy */ | |
396e467c FN |
9209 | tmp = load_reg(s, rm); |
9210 | store_reg(s, rd, tmp); | |
99c475ab FB |
9211 | break; |
9212 | case 3:/* branch [and link] exchange thumb register */ | |
b0109805 | 9213 | tmp = load_reg(s, rm); |
99c475ab | 9214 | if (insn & (1 << 7)) { |
be5e7a76 | 9215 | ARCH(5); |
99c475ab | 9216 | val = (uint32_t)s->pc | 1; |
7d1b0095 | 9217 | tmp2 = tcg_temp_new_i32(); |
b0109805 PB |
9218 | tcg_gen_movi_i32(tmp2, val); |
9219 | store_reg(s, 14, tmp2); | |
99c475ab | 9220 | } |
be5e7a76 | 9221 | /* already thumb, no need to check */ |
d9ba4830 | 9222 | gen_bx(s, tmp); |
99c475ab FB |
9223 | break; |
9224 | } | |
9225 | break; | |
9226 | } | |
9227 | ||
9228 | /* data processing register */ | |
9229 | rd = insn & 7; | |
9230 | rm = (insn >> 3) & 7; | |
9231 | op = (insn >> 6) & 0xf; | |
9232 | if (op == 2 || op == 3 || op == 4 || op == 7) { | |
9233 | /* the shift/rotate ops want the operands backwards */ | |
9234 | val = rm; | |
9235 | rm = rd; | |
9236 | rd = val; | |
9237 | val = 1; | |
9238 | } else { | |
9239 | val = 0; | |
9240 | } | |
9241 | ||
396e467c | 9242 | if (op == 9) { /* neg */ |
7d1b0095 | 9243 | tmp = tcg_temp_new_i32(); |
396e467c FN |
9244 | tcg_gen_movi_i32(tmp, 0); |
9245 | } else if (op != 0xf) { /* mvn doesn't read its first operand */ | |
9246 | tmp = load_reg(s, rd); | |
9247 | } else { | |
39d5492a | 9248 | TCGV_UNUSED_I32(tmp); |
396e467c | 9249 | } |
99c475ab | 9250 | |
396e467c | 9251 | tmp2 = load_reg(s, rm); |
5899f386 | 9252 | switch (op) { |
99c475ab | 9253 | case 0x0: /* and */ |
396e467c | 9254 | tcg_gen_and_i32(tmp, tmp, tmp2); |
9ee6e8bb | 9255 | if (!s->condexec_mask) |
396e467c | 9256 | gen_logic_CC(tmp); |
99c475ab FB |
9257 | break; |
9258 | case 0x1: /* eor */ | |
396e467c | 9259 | tcg_gen_xor_i32(tmp, tmp, tmp2); |
9ee6e8bb | 9260 | if (!s->condexec_mask) |
396e467c | 9261 | gen_logic_CC(tmp); |
99c475ab FB |
9262 | break; |
9263 | case 0x2: /* lsl */ | |
9ee6e8bb | 9264 | if (s->condexec_mask) { |
365af80e | 9265 | gen_shl(tmp2, tmp2, tmp); |
9ee6e8bb | 9266 | } else { |
9ef39277 | 9267 | gen_helper_shl_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 9268 | gen_logic_CC(tmp2); |
9ee6e8bb | 9269 | } |
99c475ab FB |
9270 | break; |
9271 | case 0x3: /* lsr */ | |
9ee6e8bb | 9272 | if (s->condexec_mask) { |
365af80e | 9273 | gen_shr(tmp2, tmp2, tmp); |
9ee6e8bb | 9274 | } else { |
9ef39277 | 9275 | gen_helper_shr_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 9276 | gen_logic_CC(tmp2); |
9ee6e8bb | 9277 | } |
99c475ab FB |
9278 | break; |
9279 | case 0x4: /* asr */ | |
9ee6e8bb | 9280 | if (s->condexec_mask) { |
365af80e | 9281 | gen_sar(tmp2, tmp2, tmp); |
9ee6e8bb | 9282 | } else { |
9ef39277 | 9283 | gen_helper_sar_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 9284 | gen_logic_CC(tmp2); |
9ee6e8bb | 9285 | } |
99c475ab FB |
9286 | break; |
9287 | case 0x5: /* adc */ | |
49b4c31e | 9288 | if (s->condexec_mask) { |
396e467c | 9289 | gen_adc(tmp, tmp2); |
49b4c31e RH |
9290 | } else { |
9291 | gen_adc_CC(tmp, tmp, tmp2); | |
9292 | } | |
99c475ab FB |
9293 | break; |
9294 | case 0x6: /* sbc */ | |
2de68a49 | 9295 | if (s->condexec_mask) { |
396e467c | 9296 | gen_sub_carry(tmp, tmp, tmp2); |
2de68a49 RH |
9297 | } else { |
9298 | gen_sbc_CC(tmp, tmp, tmp2); | |
9299 | } | |
99c475ab FB |
9300 | break; |
9301 | case 0x7: /* ror */ | |
9ee6e8bb | 9302 | if (s->condexec_mask) { |
f669df27 AJ |
9303 | tcg_gen_andi_i32(tmp, tmp, 0x1f); |
9304 | tcg_gen_rotr_i32(tmp2, tmp2, tmp); | |
9ee6e8bb | 9305 | } else { |
9ef39277 | 9306 | gen_helper_ror_cc(tmp2, cpu_env, tmp2, tmp); |
396e467c | 9307 | gen_logic_CC(tmp2); |
9ee6e8bb | 9308 | } |
99c475ab FB |
9309 | break; |
9310 | case 0x8: /* tst */ | |
396e467c FN |
9311 | tcg_gen_and_i32(tmp, tmp, tmp2); |
9312 | gen_logic_CC(tmp); | |
99c475ab | 9313 | rd = 16; |
5899f386 | 9314 | break; |
99c475ab | 9315 | case 0x9: /* neg */ |
9ee6e8bb | 9316 | if (s->condexec_mask) |
396e467c | 9317 | tcg_gen_neg_i32(tmp, tmp2); |
9ee6e8bb | 9318 | else |
72485ec4 | 9319 | gen_sub_CC(tmp, tmp, tmp2); |
99c475ab FB |
9320 | break; |
9321 | case 0xa: /* cmp */ | |
72485ec4 | 9322 | gen_sub_CC(tmp, tmp, tmp2); |
99c475ab FB |
9323 | rd = 16; |
9324 | break; | |
9325 | case 0xb: /* cmn */ | |
72485ec4 | 9326 | gen_add_CC(tmp, tmp, tmp2); |
99c475ab FB |
9327 | rd = 16; |
9328 | break; | |
9329 | case 0xc: /* orr */ | |
396e467c | 9330 | tcg_gen_or_i32(tmp, tmp, tmp2); |
9ee6e8bb | 9331 | if (!s->condexec_mask) |
396e467c | 9332 | gen_logic_CC(tmp); |
99c475ab FB |
9333 | break; |
9334 | case 0xd: /* mul */ | |
7b2919a0 | 9335 | tcg_gen_mul_i32(tmp, tmp, tmp2); |
9ee6e8bb | 9336 | if (!s->condexec_mask) |
396e467c | 9337 | gen_logic_CC(tmp); |
99c475ab FB |
9338 | break; |
9339 | case 0xe: /* bic */ | |
f669df27 | 9340 | tcg_gen_andc_i32(tmp, tmp, tmp2); |
9ee6e8bb | 9341 | if (!s->condexec_mask) |
396e467c | 9342 | gen_logic_CC(tmp); |
99c475ab FB |
9343 | break; |
9344 | case 0xf: /* mvn */ | |
396e467c | 9345 | tcg_gen_not_i32(tmp2, tmp2); |
9ee6e8bb | 9346 | if (!s->condexec_mask) |
396e467c | 9347 | gen_logic_CC(tmp2); |
99c475ab | 9348 | val = 1; |
5899f386 | 9349 | rm = rd; |
99c475ab FB |
9350 | break; |
9351 | } | |
9352 | if (rd != 16) { | |
396e467c FN |
9353 | if (val) { |
9354 | store_reg(s, rm, tmp2); | |
9355 | if (op != 0xf) | |
7d1b0095 | 9356 | tcg_temp_free_i32(tmp); |
396e467c FN |
9357 | } else { |
9358 | store_reg(s, rd, tmp); | |
7d1b0095 | 9359 | tcg_temp_free_i32(tmp2); |
396e467c FN |
9360 | } |
9361 | } else { | |
7d1b0095 PM |
9362 | tcg_temp_free_i32(tmp); |
9363 | tcg_temp_free_i32(tmp2); | |
99c475ab FB |
9364 | } |
9365 | break; | |
9366 | ||
9367 | case 5: | |
9368 | /* load/store register offset. */ | |
9369 | rd = insn & 7; | |
9370 | rn = (insn >> 3) & 7; | |
9371 | rm = (insn >> 6) & 7; | |
9372 | op = (insn >> 9) & 7; | |
b0109805 | 9373 | addr = load_reg(s, rn); |
b26eefb6 | 9374 | tmp = load_reg(s, rm); |
b0109805 | 9375 | tcg_gen_add_i32(addr, addr, tmp); |
7d1b0095 | 9376 | tcg_temp_free_i32(tmp); |
99c475ab FB |
9377 | |
9378 | if (op < 3) /* store */ | |
b0109805 | 9379 | tmp = load_reg(s, rd); |
99c475ab FB |
9380 | |
9381 | switch (op) { | |
9382 | case 0: /* str */ | |
b0109805 | 9383 | gen_st32(tmp, addr, IS_USER(s)); |
99c475ab FB |
9384 | break; |
9385 | case 1: /* strh */ | |
b0109805 | 9386 | gen_st16(tmp, addr, IS_USER(s)); |
99c475ab FB |
9387 | break; |
9388 | case 2: /* strb */ | |
b0109805 | 9389 | gen_st8(tmp, addr, IS_USER(s)); |
99c475ab FB |
9390 | break; |
9391 | case 3: /* ldrsb */ | |
b0109805 | 9392 | tmp = gen_ld8s(addr, IS_USER(s)); |
99c475ab FB |
9393 | break; |
9394 | case 4: /* ldr */ | |
b0109805 | 9395 | tmp = gen_ld32(addr, IS_USER(s)); |
99c475ab FB |
9396 | break; |
9397 | case 5: /* ldrh */ | |
b0109805 | 9398 | tmp = gen_ld16u(addr, IS_USER(s)); |
99c475ab FB |
9399 | break; |
9400 | case 6: /* ldrb */ | |
b0109805 | 9401 | tmp = gen_ld8u(addr, IS_USER(s)); |
99c475ab FB |
9402 | break; |
9403 | case 7: /* ldrsh */ | |
b0109805 | 9404 | tmp = gen_ld16s(addr, IS_USER(s)); |
99c475ab FB |
9405 | break; |
9406 | } | |
9407 | if (op >= 3) /* load */ | |
b0109805 | 9408 | store_reg(s, rd, tmp); |
7d1b0095 | 9409 | tcg_temp_free_i32(addr); |
99c475ab FB |
9410 | break; |
9411 | ||
9412 | case 6: | |
9413 | /* load/store word immediate offset */ | |
9414 | rd = insn & 7; | |
9415 | rn = (insn >> 3) & 7; | |
b0109805 | 9416 | addr = load_reg(s, rn); |
99c475ab | 9417 | val = (insn >> 4) & 0x7c; |
b0109805 | 9418 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
9419 | |
9420 | if (insn & (1 << 11)) { | |
9421 | /* load */ | |
b0109805 PB |
9422 | tmp = gen_ld32(addr, IS_USER(s)); |
9423 | store_reg(s, rd, tmp); | |
99c475ab FB |
9424 | } else { |
9425 | /* store */ | |
b0109805 PB |
9426 | tmp = load_reg(s, rd); |
9427 | gen_st32(tmp, addr, IS_USER(s)); | |
99c475ab | 9428 | } |
7d1b0095 | 9429 | tcg_temp_free_i32(addr); |
99c475ab FB |
9430 | break; |
9431 | ||
9432 | case 7: | |
9433 | /* load/store byte immediate offset */ | |
9434 | rd = insn & 7; | |
9435 | rn = (insn >> 3) & 7; | |
b0109805 | 9436 | addr = load_reg(s, rn); |
99c475ab | 9437 | val = (insn >> 6) & 0x1f; |
b0109805 | 9438 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
9439 | |
9440 | if (insn & (1 << 11)) { | |
9441 | /* load */ | |
b0109805 PB |
9442 | tmp = gen_ld8u(addr, IS_USER(s)); |
9443 | store_reg(s, rd, tmp); | |
99c475ab FB |
9444 | } else { |
9445 | /* store */ | |
b0109805 PB |
9446 | tmp = load_reg(s, rd); |
9447 | gen_st8(tmp, addr, IS_USER(s)); | |
99c475ab | 9448 | } |
7d1b0095 | 9449 | tcg_temp_free_i32(addr); |
99c475ab FB |
9450 | break; |
9451 | ||
9452 | case 8: | |
9453 | /* load/store halfword immediate offset */ | |
9454 | rd = insn & 7; | |
9455 | rn = (insn >> 3) & 7; | |
b0109805 | 9456 | addr = load_reg(s, rn); |
99c475ab | 9457 | val = (insn >> 5) & 0x3e; |
b0109805 | 9458 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
9459 | |
9460 | if (insn & (1 << 11)) { | |
9461 | /* load */ | |
b0109805 PB |
9462 | tmp = gen_ld16u(addr, IS_USER(s)); |
9463 | store_reg(s, rd, tmp); | |
99c475ab FB |
9464 | } else { |
9465 | /* store */ | |
b0109805 PB |
9466 | tmp = load_reg(s, rd); |
9467 | gen_st16(tmp, addr, IS_USER(s)); | |
99c475ab | 9468 | } |
7d1b0095 | 9469 | tcg_temp_free_i32(addr); |
99c475ab FB |
9470 | break; |
9471 | ||
9472 | case 9: | |
9473 | /* load/store from stack */ | |
9474 | rd = (insn >> 8) & 7; | |
b0109805 | 9475 | addr = load_reg(s, 13); |
99c475ab | 9476 | val = (insn & 0xff) * 4; |
b0109805 | 9477 | tcg_gen_addi_i32(addr, addr, val); |
99c475ab FB |
9478 | |
9479 | if (insn & (1 << 11)) { | |
9480 | /* load */ | |
b0109805 PB |
9481 | tmp = gen_ld32(addr, IS_USER(s)); |
9482 | store_reg(s, rd, tmp); | |
99c475ab FB |
9483 | } else { |
9484 | /* store */ | |
b0109805 PB |
9485 | tmp = load_reg(s, rd); |
9486 | gen_st32(tmp, addr, IS_USER(s)); | |
99c475ab | 9487 | } |
7d1b0095 | 9488 | tcg_temp_free_i32(addr); |
99c475ab FB |
9489 | break; |
9490 | ||
9491 | case 10: | |
9492 | /* add to high reg */ | |
9493 | rd = (insn >> 8) & 7; | |
5899f386 FB |
9494 | if (insn & (1 << 11)) { |
9495 | /* SP */ | |
5e3f878a | 9496 | tmp = load_reg(s, 13); |
5899f386 FB |
9497 | } else { |
9498 | /* PC. bit 1 is ignored. */ | |
7d1b0095 | 9499 | tmp = tcg_temp_new_i32(); |
5e3f878a | 9500 | tcg_gen_movi_i32(tmp, (s->pc + 2) & ~(uint32_t)2); |
5899f386 | 9501 | } |
99c475ab | 9502 | val = (insn & 0xff) * 4; |
5e3f878a PB |
9503 | tcg_gen_addi_i32(tmp, tmp, val); |
9504 | store_reg(s, rd, tmp); | |
99c475ab FB |
9505 | break; |
9506 | ||
9507 | case 11: | |
9508 | /* misc */ | |
9509 | op = (insn >> 8) & 0xf; | |
9510 | switch (op) { | |
9511 | case 0: | |
9512 | /* adjust stack pointer */ | |
b26eefb6 | 9513 | tmp = load_reg(s, 13); |
99c475ab FB |
9514 | val = (insn & 0x7f) * 4; |
9515 | if (insn & (1 << 7)) | |
6a0d8a1d | 9516 | val = -(int32_t)val; |
b26eefb6 PB |
9517 | tcg_gen_addi_i32(tmp, tmp, val); |
9518 | store_reg(s, 13, tmp); | |
99c475ab FB |
9519 | break; |
9520 | ||
9ee6e8bb PB |
9521 | case 2: /* sign/zero extend. */ |
9522 | ARCH(6); | |
9523 | rd = insn & 7; | |
9524 | rm = (insn >> 3) & 7; | |
b0109805 | 9525 | tmp = load_reg(s, rm); |
9ee6e8bb | 9526 | switch ((insn >> 6) & 3) { |
b0109805 PB |
9527 | case 0: gen_sxth(tmp); break; |
9528 | case 1: gen_sxtb(tmp); break; | |
9529 | case 2: gen_uxth(tmp); break; | |
9530 | case 3: gen_uxtb(tmp); break; | |
9ee6e8bb | 9531 | } |
b0109805 | 9532 | store_reg(s, rd, tmp); |
9ee6e8bb | 9533 | break; |
99c475ab FB |
9534 | case 4: case 5: case 0xc: case 0xd: |
9535 | /* push/pop */ | |
b0109805 | 9536 | addr = load_reg(s, 13); |
5899f386 FB |
9537 | if (insn & (1 << 8)) |
9538 | offset = 4; | |
99c475ab | 9539 | else |
5899f386 FB |
9540 | offset = 0; |
9541 | for (i = 0; i < 8; i++) { | |
9542 | if (insn & (1 << i)) | |
9543 | offset += 4; | |
9544 | } | |
9545 | if ((insn & (1 << 11)) == 0) { | |
b0109805 | 9546 | tcg_gen_addi_i32(addr, addr, -offset); |
5899f386 | 9547 | } |
99c475ab FB |
9548 | for (i = 0; i < 8; i++) { |
9549 | if (insn & (1 << i)) { | |
9550 | if (insn & (1 << 11)) { | |
9551 | /* pop */ | |
b0109805 PB |
9552 | tmp = gen_ld32(addr, IS_USER(s)); |
9553 | store_reg(s, i, tmp); | |
99c475ab FB |
9554 | } else { |
9555 | /* push */ | |
b0109805 PB |
9556 | tmp = load_reg(s, i); |
9557 | gen_st32(tmp, addr, IS_USER(s)); | |
99c475ab | 9558 | } |
5899f386 | 9559 | /* advance to the next address. */ |
b0109805 | 9560 | tcg_gen_addi_i32(addr, addr, 4); |
99c475ab FB |
9561 | } |
9562 | } | |
39d5492a | 9563 | TCGV_UNUSED_I32(tmp); |
99c475ab FB |
9564 | if (insn & (1 << 8)) { |
9565 | if (insn & (1 << 11)) { | |
9566 | /* pop pc */ | |
b0109805 | 9567 | tmp = gen_ld32(addr, IS_USER(s)); |
99c475ab FB |
9568 | /* don't set the pc until the rest of the instruction |
9569 | has completed */ | |
9570 | } else { | |
9571 | /* push lr */ | |
b0109805 PB |
9572 | tmp = load_reg(s, 14); |
9573 | gen_st32(tmp, addr, IS_USER(s)); | |
99c475ab | 9574 | } |
b0109805 | 9575 | tcg_gen_addi_i32(addr, addr, 4); |
99c475ab | 9576 | } |
5899f386 | 9577 | if ((insn & (1 << 11)) == 0) { |
b0109805 | 9578 | tcg_gen_addi_i32(addr, addr, -offset); |
5899f386 | 9579 | } |
99c475ab | 9580 | /* write back the new stack pointer */ |
b0109805 | 9581 | store_reg(s, 13, addr); |
99c475ab | 9582 | /* set the new PC value */ |
be5e7a76 DES |
9583 | if ((insn & 0x0900) == 0x0900) { |
9584 | store_reg_from_load(env, s, 15, tmp); | |
9585 | } | |
99c475ab FB |
9586 | break; |
9587 | ||
9ee6e8bb PB |
9588 | case 1: case 3: case 9: case 11: /* czb */ |
9589 | rm = insn & 7; | |
d9ba4830 | 9590 | tmp = load_reg(s, rm); |
9ee6e8bb PB |
9591 | s->condlabel = gen_new_label(); |
9592 | s->condjmp = 1; | |
9593 | if (insn & (1 << 11)) | |
cb63669a | 9594 | tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel); |
9ee6e8bb | 9595 | else |
cb63669a | 9596 | tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, s->condlabel); |
7d1b0095 | 9597 | tcg_temp_free_i32(tmp); |
9ee6e8bb PB |
9598 | offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3; |
9599 | val = (uint32_t)s->pc + 2; | |
9600 | val += offset; | |
9601 | gen_jmp(s, val); | |
9602 | break; | |
9603 | ||
9604 | case 15: /* IT, nop-hint. */ | |
9605 | if ((insn & 0xf) == 0) { | |
9606 | gen_nop_hint(s, (insn >> 4) & 0xf); | |
9607 | break; | |
9608 | } | |
9609 | /* If Then. */ | |
9610 | s->condexec_cond = (insn >> 4) & 0xe; | |
9611 | s->condexec_mask = insn & 0x1f; | |
9612 | /* No actual code generated for this insn, just setup state. */ | |
9613 | break; | |
9614 | ||
06c949e6 | 9615 | case 0xe: /* bkpt */ |
be5e7a76 | 9616 | ARCH(5); |
bc4a0de0 | 9617 | gen_exception_insn(s, 2, EXCP_BKPT); |
06c949e6 PB |
9618 | break; |
9619 | ||
9ee6e8bb PB |
9620 | case 0xa: /* rev */ |
9621 | ARCH(6); | |
9622 | rn = (insn >> 3) & 0x7; | |
9623 | rd = insn & 0x7; | |
b0109805 | 9624 | tmp = load_reg(s, rn); |
9ee6e8bb | 9625 | switch ((insn >> 6) & 3) { |
66896cb8 | 9626 | case 0: tcg_gen_bswap32_i32(tmp, tmp); break; |
b0109805 PB |
9627 | case 1: gen_rev16(tmp); break; |
9628 | case 3: gen_revsh(tmp); break; | |
9ee6e8bb PB |
9629 | default: goto illegal_op; |
9630 | } | |
b0109805 | 9631 | store_reg(s, rd, tmp); |
9ee6e8bb PB |
9632 | break; |
9633 | ||
d9e028c1 PM |
9634 | case 6: |
9635 | switch ((insn >> 5) & 7) { | |
9636 | case 2: | |
9637 | /* setend */ | |
9638 | ARCH(6); | |
10962fd5 PM |
9639 | if (((insn >> 3) & 1) != s->bswap_code) { |
9640 | /* Dynamic endianness switching not implemented. */ | |
d9e028c1 PM |
9641 | goto illegal_op; |
9642 | } | |
9ee6e8bb | 9643 | break; |
d9e028c1 PM |
9644 | case 3: |
9645 | /* cps */ | |
9646 | ARCH(6); | |
9647 | if (IS_USER(s)) { | |
9648 | break; | |
8984bd2e | 9649 | } |
d9e028c1 PM |
9650 | if (IS_M(env)) { |
9651 | tmp = tcg_const_i32((insn & (1 << 4)) != 0); | |
9652 | /* FAULTMASK */ | |
9653 | if (insn & 1) { | |
9654 | addr = tcg_const_i32(19); | |
9655 | gen_helper_v7m_msr(cpu_env, addr, tmp); | |
9656 | tcg_temp_free_i32(addr); | |
9657 | } | |
9658 | /* PRIMASK */ | |
9659 | if (insn & 2) { | |
9660 | addr = tcg_const_i32(16); | |
9661 | gen_helper_v7m_msr(cpu_env, addr, tmp); | |
9662 | tcg_temp_free_i32(addr); | |
9663 | } | |
9664 | tcg_temp_free_i32(tmp); | |
9665 | gen_lookup_tb(s); | |
9666 | } else { | |
9667 | if (insn & (1 << 4)) { | |
9668 | shift = CPSR_A | CPSR_I | CPSR_F; | |
9669 | } else { | |
9670 | shift = 0; | |
9671 | } | |
9672 | gen_set_psr_im(s, ((insn & 7) << 6), 0, shift); | |
8984bd2e | 9673 | } |
d9e028c1 PM |
9674 | break; |
9675 | default: | |
9676 | goto undef; | |
9ee6e8bb PB |
9677 | } |
9678 | break; | |
9679 | ||
99c475ab FB |
9680 | default: |
9681 | goto undef; | |
9682 | } | |
9683 | break; | |
9684 | ||
9685 | case 12: | |
a7d3970d | 9686 | { |
99c475ab | 9687 | /* load/store multiple */ |
39d5492a PM |
9688 | TCGv_i32 loaded_var; |
9689 | TCGV_UNUSED_I32(loaded_var); | |
99c475ab | 9690 | rn = (insn >> 8) & 0x7; |
b0109805 | 9691 | addr = load_reg(s, rn); |
99c475ab FB |
9692 | for (i = 0; i < 8; i++) { |
9693 | if (insn & (1 << i)) { | |
99c475ab FB |
9694 | if (insn & (1 << 11)) { |
9695 | /* load */ | |
b0109805 | 9696 | tmp = gen_ld32(addr, IS_USER(s)); |
a7d3970d PM |
9697 | if (i == rn) { |
9698 | loaded_var = tmp; | |
9699 | } else { | |
9700 | store_reg(s, i, tmp); | |
9701 | } | |
99c475ab FB |
9702 | } else { |
9703 | /* store */ | |
b0109805 PB |
9704 | tmp = load_reg(s, i); |
9705 | gen_st32(tmp, addr, IS_USER(s)); | |
99c475ab | 9706 | } |
5899f386 | 9707 | /* advance to the next address */ |
b0109805 | 9708 | tcg_gen_addi_i32(addr, addr, 4); |
99c475ab FB |
9709 | } |
9710 | } | |
b0109805 | 9711 | if ((insn & (1 << rn)) == 0) { |
a7d3970d | 9712 | /* base reg not in list: base register writeback */ |
b0109805 PB |
9713 | store_reg(s, rn, addr); |
9714 | } else { | |
a7d3970d PM |
9715 | /* base reg in list: if load, complete it now */ |
9716 | if (insn & (1 << 11)) { | |
9717 | store_reg(s, rn, loaded_var); | |
9718 | } | |
7d1b0095 | 9719 | tcg_temp_free_i32(addr); |
b0109805 | 9720 | } |
99c475ab | 9721 | break; |
a7d3970d | 9722 | } |
99c475ab FB |
9723 | case 13: |
9724 | /* conditional branch or swi */ | |
9725 | cond = (insn >> 8) & 0xf; | |
9726 | if (cond == 0xe) | |
9727 | goto undef; | |
9728 | ||
9729 | if (cond == 0xf) { | |
9730 | /* swi */ | |
422ebf69 | 9731 | gen_set_pc_im(s->pc); |
9ee6e8bb | 9732 | s->is_jmp = DISAS_SWI; |
99c475ab FB |
9733 | break; |
9734 | } | |
9735 | /* generate a conditional jump to next instruction */ | |
e50e6a20 | 9736 | s->condlabel = gen_new_label(); |
d9ba4830 | 9737 | gen_test_cc(cond ^ 1, s->condlabel); |
e50e6a20 | 9738 | s->condjmp = 1; |
99c475ab FB |
9739 | |
9740 | /* jump to the offset */ | |
5899f386 | 9741 | val = (uint32_t)s->pc + 2; |
99c475ab | 9742 | offset = ((int32_t)insn << 24) >> 24; |
5899f386 | 9743 | val += offset << 1; |
8aaca4c0 | 9744 | gen_jmp(s, val); |
99c475ab FB |
9745 | break; |
9746 | ||
9747 | case 14: | |
358bf29e | 9748 | if (insn & (1 << 11)) { |
9ee6e8bb PB |
9749 | if (disas_thumb2_insn(env, s, insn)) |
9750 | goto undef32; | |
358bf29e PB |
9751 | break; |
9752 | } | |
9ee6e8bb | 9753 | /* unconditional branch */ |
99c475ab FB |
9754 | val = (uint32_t)s->pc; |
9755 | offset = ((int32_t)insn << 21) >> 21; | |
9756 | val += (offset << 1) + 2; | |
8aaca4c0 | 9757 | gen_jmp(s, val); |
99c475ab FB |
9758 | break; |
9759 | ||
9760 | case 15: | |
9ee6e8bb | 9761 | if (disas_thumb2_insn(env, s, insn)) |
6a0d8a1d | 9762 | goto undef32; |
9ee6e8bb | 9763 | break; |
99c475ab FB |
9764 | } |
9765 | return; | |
9ee6e8bb | 9766 | undef32: |
bc4a0de0 | 9767 | gen_exception_insn(s, 4, EXCP_UDEF); |
9ee6e8bb PB |
9768 | return; |
9769 | illegal_op: | |
99c475ab | 9770 | undef: |
bc4a0de0 | 9771 | gen_exception_insn(s, 2, EXCP_UDEF); |
99c475ab FB |
9772 | } |
9773 | ||
2c0262af FB |
9774 | /* generate intermediate code in gen_opc_buf and gen_opparam_buf for |
9775 | basic block 'tb'. If search_pc is TRUE, also generate PC | |
9776 | information for each intermediate instruction. */ | |
0ecb72a5 | 9777 | static inline void gen_intermediate_code_internal(CPUARMState *env, |
2cfc5f17 TS |
9778 | TranslationBlock *tb, |
9779 | int search_pc) | |
2c0262af FB |
9780 | { |
9781 | DisasContext dc1, *dc = &dc1; | |
a1d1bb31 | 9782 | CPUBreakpoint *bp; |
2c0262af FB |
9783 | uint16_t *gen_opc_end; |
9784 | int j, lj; | |
0fa85d43 | 9785 | target_ulong pc_start; |
b5ff1b31 | 9786 | uint32_t next_page_start; |
2e70f6ef PB |
9787 | int num_insns; |
9788 | int max_insns; | |
3b46e624 | 9789 | |
2c0262af | 9790 | /* generate intermediate code */ |
0fa85d43 | 9791 | pc_start = tb->pc; |
3b46e624 | 9792 | |
2c0262af FB |
9793 | dc->tb = tb; |
9794 | ||
92414b31 | 9795 | gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE; |
2c0262af FB |
9796 | |
9797 | dc->is_jmp = DISAS_NEXT; | |
9798 | dc->pc = pc_start; | |
8aaca4c0 | 9799 | dc->singlestep_enabled = env->singlestep_enabled; |
e50e6a20 | 9800 | dc->condjmp = 0; |
7204ab88 | 9801 | dc->thumb = ARM_TBFLAG_THUMB(tb->flags); |
d8fd2954 | 9802 | dc->bswap_code = ARM_TBFLAG_BSWAP_CODE(tb->flags); |
98eac7ca PM |
9803 | dc->condexec_mask = (ARM_TBFLAG_CONDEXEC(tb->flags) & 0xf) << 1; |
9804 | dc->condexec_cond = ARM_TBFLAG_CONDEXEC(tb->flags) >> 4; | |
b5ff1b31 | 9805 | #if !defined(CONFIG_USER_ONLY) |
61f74d6a | 9806 | dc->user = (ARM_TBFLAG_PRIV(tb->flags) == 0); |
b5ff1b31 | 9807 | #endif |
5df8bac1 | 9808 | dc->vfp_enabled = ARM_TBFLAG_VFPEN(tb->flags); |
69d1fc22 PM |
9809 | dc->vec_len = ARM_TBFLAG_VECLEN(tb->flags); |
9810 | dc->vec_stride = ARM_TBFLAG_VECSTRIDE(tb->flags); | |
a7812ae4 PB |
9811 | cpu_F0s = tcg_temp_new_i32(); |
9812 | cpu_F1s = tcg_temp_new_i32(); | |
9813 | cpu_F0d = tcg_temp_new_i64(); | |
9814 | cpu_F1d = tcg_temp_new_i64(); | |
ad69471c PB |
9815 | cpu_V0 = cpu_F0d; |
9816 | cpu_V1 = cpu_F1d; | |
e677137d | 9817 | /* FIXME: cpu_M0 can probably be the same as cpu_V0. */ |
a7812ae4 | 9818 | cpu_M0 = tcg_temp_new_i64(); |
b5ff1b31 | 9819 | next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; |
2c0262af | 9820 | lj = -1; |
2e70f6ef PB |
9821 | num_insns = 0; |
9822 | max_insns = tb->cflags & CF_COUNT_MASK; | |
9823 | if (max_insns == 0) | |
9824 | max_insns = CF_COUNT_MASK; | |
9825 | ||
806f352d | 9826 | gen_tb_start(); |
e12ce78d | 9827 | |
3849902c PM |
9828 | tcg_clear_temp_count(); |
9829 | ||
e12ce78d PM |
9830 | /* A note on handling of the condexec (IT) bits: |
9831 | * | |
9832 | * We want to avoid the overhead of having to write the updated condexec | |
0ecb72a5 | 9833 | * bits back to the CPUARMState for every instruction in an IT block. So: |
e12ce78d | 9834 | * (1) if the condexec bits are not already zero then we write |
0ecb72a5 | 9835 | * zero back into the CPUARMState now. This avoids complications trying |
e12ce78d PM |
9836 | * to do it at the end of the block. (For example if we don't do this |
9837 | * it's hard to identify whether we can safely skip writing condexec | |
9838 | * at the end of the TB, which we definitely want to do for the case | |
9839 | * where a TB doesn't do anything with the IT state at all.) | |
9840 | * (2) if we are going to leave the TB then we call gen_set_condexec() | |
0ecb72a5 | 9841 | * which will write the correct value into CPUARMState if zero is wrong. |
e12ce78d PM |
9842 | * This is done both for leaving the TB at the end, and for leaving |
9843 | * it because of an exception we know will happen, which is done in | |
9844 | * gen_exception_insn(). The latter is necessary because we need to | |
9845 | * leave the TB with the PC/IT state just prior to execution of the | |
9846 | * instruction which caused the exception. | |
9847 | * (3) if we leave the TB unexpectedly (eg a data abort on a load) | |
0ecb72a5 | 9848 | * then the CPUARMState will be wrong and we need to reset it. |
e12ce78d PM |
9849 | * This is handled in the same way as restoration of the |
9850 | * PC in these situations: we will be called again with search_pc=1 | |
9851 | * and generate a mapping of the condexec bits for each PC in | |
e87b7cb0 SW |
9852 | * gen_opc_condexec_bits[]. restore_state_to_opc() then uses |
9853 | * this to restore the condexec bits. | |
e12ce78d PM |
9854 | * |
9855 | * Note that there are no instructions which can read the condexec | |
9856 | * bits, and none which can write non-static values to them, so | |
0ecb72a5 | 9857 | * we don't need to care about whether CPUARMState is correct in the |
e12ce78d PM |
9858 | * middle of a TB. |
9859 | */ | |
9860 | ||
9ee6e8bb PB |
9861 | /* Reset the conditional execution bits immediately. This avoids |
9862 | complications trying to do it at the end of the block. */ | |
98eac7ca | 9863 | if (dc->condexec_mask || dc->condexec_cond) |
8f01245e | 9864 | { |
39d5492a | 9865 | TCGv_i32 tmp = tcg_temp_new_i32(); |
8f01245e | 9866 | tcg_gen_movi_i32(tmp, 0); |
d9ba4830 | 9867 | store_cpu_field(tmp, condexec_bits); |
8f01245e | 9868 | } |
2c0262af | 9869 | do { |
fbb4a2e3 PB |
9870 | #ifdef CONFIG_USER_ONLY |
9871 | /* Intercept jump to the magic kernel page. */ | |
9872 | if (dc->pc >= 0xffff0000) { | |
9873 | /* We always get here via a jump, so know we are not in a | |
9874 | conditional execution block. */ | |
9875 | gen_exception(EXCP_KERNEL_TRAP); | |
9876 | dc->is_jmp = DISAS_UPDATE; | |
9877 | break; | |
9878 | } | |
9879 | #else | |
9ee6e8bb PB |
9880 | if (dc->pc >= 0xfffffff0 && IS_M(env)) { |
9881 | /* We always get here via a jump, so know we are not in a | |
9882 | conditional execution block. */ | |
d9ba4830 | 9883 | gen_exception(EXCP_EXCEPTION_EXIT); |
d60bb01c PB |
9884 | dc->is_jmp = DISAS_UPDATE; |
9885 | break; | |
9ee6e8bb PB |
9886 | } |
9887 | #endif | |
9888 | ||
72cf2d4f BS |
9889 | if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) { |
9890 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { | |
a1d1bb31 | 9891 | if (bp->pc == dc->pc) { |
bc4a0de0 | 9892 | gen_exception_insn(dc, 0, EXCP_DEBUG); |
9ee6e8bb PB |
9893 | /* Advance PC so that clearing the breakpoint will |
9894 | invalidate this TB. */ | |
9895 | dc->pc += 2; | |
9896 | goto done_generating; | |
1fddef4b FB |
9897 | break; |
9898 | } | |
9899 | } | |
9900 | } | |
2c0262af | 9901 | if (search_pc) { |
92414b31 | 9902 | j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
2c0262af FB |
9903 | if (lj < j) { |
9904 | lj++; | |
9905 | while (lj < j) | |
ab1103de | 9906 | tcg_ctx.gen_opc_instr_start[lj++] = 0; |
2c0262af | 9907 | } |
25983cad | 9908 | tcg_ctx.gen_opc_pc[lj] = dc->pc; |
e12ce78d | 9909 | gen_opc_condexec_bits[lj] = (dc->condexec_cond << 4) | (dc->condexec_mask >> 1); |
ab1103de | 9910 | tcg_ctx.gen_opc_instr_start[lj] = 1; |
c9c99c22 | 9911 | tcg_ctx.gen_opc_icount[lj] = num_insns; |
2c0262af | 9912 | } |
e50e6a20 | 9913 | |
2e70f6ef PB |
9914 | if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) |
9915 | gen_io_start(); | |
9916 | ||
fdefe51c | 9917 | if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) { |
5642463a PM |
9918 | tcg_gen_debug_insn_start(dc->pc); |
9919 | } | |
9920 | ||
7204ab88 | 9921 | if (dc->thumb) { |
9ee6e8bb PB |
9922 | disas_thumb_insn(env, dc); |
9923 | if (dc->condexec_mask) { | |
9924 | dc->condexec_cond = (dc->condexec_cond & 0xe) | |
9925 | | ((dc->condexec_mask >> 4) & 1); | |
9926 | dc->condexec_mask = (dc->condexec_mask << 1) & 0x1f; | |
9927 | if (dc->condexec_mask == 0) { | |
9928 | dc->condexec_cond = 0; | |
9929 | } | |
9930 | } | |
9931 | } else { | |
9932 | disas_arm_insn(env, dc); | |
9933 | } | |
e50e6a20 FB |
9934 | |
9935 | if (dc->condjmp && !dc->is_jmp) { | |
9936 | gen_set_label(dc->condlabel); | |
9937 | dc->condjmp = 0; | |
9938 | } | |
3849902c PM |
9939 | |
9940 | if (tcg_check_temp_count()) { | |
9941 | fprintf(stderr, "TCG temporary leak before %08x\n", dc->pc); | |
9942 | } | |
9943 | ||
aaf2d97d | 9944 | /* Translation stops when a conditional branch is encountered. |
e50e6a20 | 9945 | * Otherwise the subsequent code could get translated several times. |
b5ff1b31 | 9946 | * Also stop translation when a page boundary is reached. This |
bf20dc07 | 9947 | * ensures prefetch aborts occur at the right place. */ |
2e70f6ef | 9948 | num_insns ++; |
efd7f486 | 9949 | } while (!dc->is_jmp && tcg_ctx.gen_opc_ptr < gen_opc_end && |
1fddef4b | 9950 | !env->singlestep_enabled && |
1b530a6d | 9951 | !singlestep && |
2e70f6ef PB |
9952 | dc->pc < next_page_start && |
9953 | num_insns < max_insns); | |
9954 | ||
9955 | if (tb->cflags & CF_LAST_IO) { | |
9956 | if (dc->condjmp) { | |
9957 | /* FIXME: This can theoretically happen with self-modifying | |
9958 | code. */ | |
9959 | cpu_abort(env, "IO on conditional branch instruction"); | |
9960 | } | |
9961 | gen_io_end(); | |
9962 | } | |
9ee6e8bb | 9963 | |
b5ff1b31 | 9964 | /* At this stage dc->condjmp will only be set when the skipped |
9ee6e8bb PB |
9965 | instruction was a conditional branch or trap, and the PC has |
9966 | already been written. */ | |
551bd27f | 9967 | if (unlikely(env->singlestep_enabled)) { |
8aaca4c0 | 9968 | /* Make sure the pc is updated, and raise a debug exception. */ |
e50e6a20 | 9969 | if (dc->condjmp) { |
9ee6e8bb PB |
9970 | gen_set_condexec(dc); |
9971 | if (dc->is_jmp == DISAS_SWI) { | |
d9ba4830 | 9972 | gen_exception(EXCP_SWI); |
9ee6e8bb | 9973 | } else { |
d9ba4830 | 9974 | gen_exception(EXCP_DEBUG); |
9ee6e8bb | 9975 | } |
e50e6a20 FB |
9976 | gen_set_label(dc->condlabel); |
9977 | } | |
9978 | if (dc->condjmp || !dc->is_jmp) { | |
5e3f878a | 9979 | gen_set_pc_im(dc->pc); |
e50e6a20 | 9980 | dc->condjmp = 0; |
8aaca4c0 | 9981 | } |
9ee6e8bb PB |
9982 | gen_set_condexec(dc); |
9983 | if (dc->is_jmp == DISAS_SWI && !dc->condjmp) { | |
d9ba4830 | 9984 | gen_exception(EXCP_SWI); |
9ee6e8bb PB |
9985 | } else { |
9986 | /* FIXME: Single stepping a WFI insn will not halt | |
9987 | the CPU. */ | |
d9ba4830 | 9988 | gen_exception(EXCP_DEBUG); |
9ee6e8bb | 9989 | } |
8aaca4c0 | 9990 | } else { |
9ee6e8bb PB |
9991 | /* While branches must always occur at the end of an IT block, |
9992 | there are a few other things that can cause us to terminate | |
65626741 | 9993 | the TB in the middle of an IT block: |
9ee6e8bb PB |
9994 | - Exception generating instructions (bkpt, swi, undefined). |
9995 | - Page boundaries. | |
9996 | - Hardware watchpoints. | |
9997 | Hardware breakpoints have already been handled and skip this code. | |
9998 | */ | |
9999 | gen_set_condexec(dc); | |
8aaca4c0 | 10000 | switch(dc->is_jmp) { |
8aaca4c0 | 10001 | case DISAS_NEXT: |
6e256c93 | 10002 | gen_goto_tb(dc, 1, dc->pc); |
8aaca4c0 FB |
10003 | break; |
10004 | default: | |
10005 | case DISAS_JUMP: | |
10006 | case DISAS_UPDATE: | |
10007 | /* indicate that the hash table must be used to find the next TB */ | |
57fec1fe | 10008 | tcg_gen_exit_tb(0); |
8aaca4c0 FB |
10009 | break; |
10010 | case DISAS_TB_JUMP: | |
10011 | /* nothing more to generate */ | |
10012 | break; | |
9ee6e8bb | 10013 | case DISAS_WFI: |
1ce94f81 | 10014 | gen_helper_wfi(cpu_env); |
9ee6e8bb PB |
10015 | break; |
10016 | case DISAS_SWI: | |
d9ba4830 | 10017 | gen_exception(EXCP_SWI); |
9ee6e8bb | 10018 | break; |
8aaca4c0 | 10019 | } |
e50e6a20 FB |
10020 | if (dc->condjmp) { |
10021 | gen_set_label(dc->condlabel); | |
9ee6e8bb | 10022 | gen_set_condexec(dc); |
6e256c93 | 10023 | gen_goto_tb(dc, 1, dc->pc); |
e50e6a20 FB |
10024 | dc->condjmp = 0; |
10025 | } | |
2c0262af | 10026 | } |
2e70f6ef | 10027 | |
9ee6e8bb | 10028 | done_generating: |
806f352d | 10029 | gen_tb_end(tb, num_insns); |
efd7f486 | 10030 | *tcg_ctx.gen_opc_ptr = INDEX_op_end; |
2c0262af FB |
10031 | |
10032 | #ifdef DEBUG_DISAS | |
8fec2b8c | 10033 | if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { |
93fcfe39 AL |
10034 | qemu_log("----------------\n"); |
10035 | qemu_log("IN: %s\n", lookup_symbol(pc_start)); | |
f4359b9f | 10036 | log_target_disas(env, pc_start, dc->pc - pc_start, |
d8fd2954 | 10037 | dc->thumb | (dc->bswap_code << 1)); |
93fcfe39 | 10038 | qemu_log("\n"); |
2c0262af FB |
10039 | } |
10040 | #endif | |
b5ff1b31 | 10041 | if (search_pc) { |
92414b31 | 10042 | j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf; |
b5ff1b31 FB |
10043 | lj++; |
10044 | while (lj <= j) | |
ab1103de | 10045 | tcg_ctx.gen_opc_instr_start[lj++] = 0; |
b5ff1b31 | 10046 | } else { |
2c0262af | 10047 | tb->size = dc->pc - pc_start; |
2e70f6ef | 10048 | tb->icount = num_insns; |
b5ff1b31 | 10049 | } |
2c0262af FB |
10050 | } |
10051 | ||
0ecb72a5 | 10052 | void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb) |
2c0262af | 10053 | { |
2cfc5f17 | 10054 | gen_intermediate_code_internal(env, tb, 0); |
2c0262af FB |
10055 | } |
10056 | ||
0ecb72a5 | 10057 | void gen_intermediate_code_pc(CPUARMState *env, TranslationBlock *tb) |
2c0262af | 10058 | { |
2cfc5f17 | 10059 | gen_intermediate_code_internal(env, tb, 1); |
2c0262af FB |
10060 | } |
10061 | ||
b5ff1b31 FB |
10062 | static const char *cpu_mode_names[16] = { |
10063 | "usr", "fiq", "irq", "svc", "???", "???", "???", "abt", | |
10064 | "???", "???", "???", "und", "???", "???", "???", "sys" | |
10065 | }; | |
9ee6e8bb | 10066 | |
0ecb72a5 | 10067 | void cpu_dump_state(CPUARMState *env, FILE *f, fprintf_function cpu_fprintf, |
7fe48483 | 10068 | int flags) |
2c0262af FB |
10069 | { |
10070 | int i; | |
b5ff1b31 | 10071 | uint32_t psr; |
2c0262af FB |
10072 | |
10073 | for(i=0;i<16;i++) { | |
7fe48483 | 10074 | cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]); |
2c0262af | 10075 | if ((i % 4) == 3) |
7fe48483 | 10076 | cpu_fprintf(f, "\n"); |
2c0262af | 10077 | else |
7fe48483 | 10078 | cpu_fprintf(f, " "); |
2c0262af | 10079 | } |
b5ff1b31 | 10080 | psr = cpsr_read(env); |
687fa640 TS |
10081 | cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n", |
10082 | psr, | |
b5ff1b31 FB |
10083 | psr & (1 << 31) ? 'N' : '-', |
10084 | psr & (1 << 30) ? 'Z' : '-', | |
10085 | psr & (1 << 29) ? 'C' : '-', | |
10086 | psr & (1 << 28) ? 'V' : '-', | |
5fafdf24 | 10087 | psr & CPSR_T ? 'T' : 'A', |
b5ff1b31 | 10088 | cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26); |
b7bcbe95 | 10089 | |
f2617cfc PM |
10090 | if (flags & CPU_DUMP_FPU) { |
10091 | int numvfpregs = 0; | |
10092 | if (arm_feature(env, ARM_FEATURE_VFP)) { | |
10093 | numvfpregs += 16; | |
10094 | } | |
10095 | if (arm_feature(env, ARM_FEATURE_VFP3)) { | |
10096 | numvfpregs += 16; | |
10097 | } | |
10098 | for (i = 0; i < numvfpregs; i++) { | |
10099 | uint64_t v = float64_val(env->vfp.regs[i]); | |
10100 | cpu_fprintf(f, "s%02d=%08x s%02d=%08x d%02d=%016" PRIx64 "\n", | |
10101 | i * 2, (uint32_t)v, | |
10102 | i * 2 + 1, (uint32_t)(v >> 32), | |
10103 | i, v); | |
10104 | } | |
10105 | cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]); | |
b7bcbe95 | 10106 | } |
2c0262af | 10107 | } |
a6b025d3 | 10108 | |
0ecb72a5 | 10109 | void restore_state_to_opc(CPUARMState *env, TranslationBlock *tb, int pc_pos) |
d2856f1a | 10110 | { |
25983cad | 10111 | env->regs[15] = tcg_ctx.gen_opc_pc[pc_pos]; |
e12ce78d | 10112 | env->condexec_bits = gen_opc_condexec_bits[pc_pos]; |
d2856f1a | 10113 | } |