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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 | |
19 | * License along with this library; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | */ | |
22 | #include <stdarg.h> | |
23 | #include <stdlib.h> | |
24 | #include <stdio.h> | |
25 | #include <string.h> | |
26 | #include <inttypes.h> | |
27 | ||
28 | #include "cpu.h" | |
29 | #include "exec-all.h" | |
30 | #include "disas.h" | |
57fec1fe | 31 | #include "tcg-op.h" |
2c0262af | 32 | |
9ee6e8bb PB |
33 | #define ENABLE_ARCH_5J 0 |
34 | #define ENABLE_ARCH_6 arm_feature(env, ARM_FEATURE_V6) | |
35 | #define ENABLE_ARCH_6K arm_feature(env, ARM_FEATURE_V6K) | |
36 | #define ENABLE_ARCH_6T2 arm_feature(env, ARM_FEATURE_THUMB2) | |
37 | #define ENABLE_ARCH_7 arm_feature(env, ARM_FEATURE_V7) | |
b5ff1b31 FB |
38 | |
39 | #define ARCH(x) if (!ENABLE_ARCH_##x) goto illegal_op; | |
40 | ||
2c0262af FB |
41 | /* internal defines */ |
42 | typedef struct DisasContext { | |
0fa85d43 | 43 | target_ulong pc; |
2c0262af | 44 | int is_jmp; |
e50e6a20 FB |
45 | /* Nonzero if this instruction has been conditionally skipped. */ |
46 | int condjmp; | |
47 | /* The label that will be jumped to when the instruction is skipped. */ | |
48 | int condlabel; | |
9ee6e8bb PB |
49 | /* Thumb-2 condtional execution bits. */ |
50 | int condexec_mask; | |
51 | int condexec_cond; | |
2c0262af | 52 | struct TranslationBlock *tb; |
8aaca4c0 | 53 | int singlestep_enabled; |
5899f386 | 54 | int thumb; |
6658ffb8 | 55 | int is_mem; |
b5ff1b31 FB |
56 | #if !defined(CONFIG_USER_ONLY) |
57 | int user; | |
58 | #endif | |
2c0262af FB |
59 | } DisasContext; |
60 | ||
b5ff1b31 FB |
61 | #if defined(CONFIG_USER_ONLY) |
62 | #define IS_USER(s) 1 | |
63 | #else | |
64 | #define IS_USER(s) (s->user) | |
65 | #endif | |
66 | ||
9ee6e8bb PB |
67 | /* These instructions trap after executing, so defer them until after the |
68 | conditional executions state has been updated. */ | |
69 | #define DISAS_WFI 4 | |
70 | #define DISAS_SWI 5 | |
2c0262af FB |
71 | |
72 | /* XXX: move that elsewhere */ | |
2c0262af FB |
73 | extern FILE *logfile; |
74 | extern int loglevel; | |
75 | ||
9ee6e8bb PB |
76 | #define PAS_OP(pfx) { \ |
77 | gen_op_ ## pfx ## add16_T0_T1, \ | |
78 | gen_op_ ## pfx ## addsubx_T0_T1, \ | |
79 | gen_op_ ## pfx ## subaddx_T0_T1, \ | |
80 | gen_op_ ## pfx ## sub16_T0_T1, \ | |
81 | gen_op_ ## pfx ## add8_T0_T1, \ | |
82 | NULL, \ | |
83 | NULL, \ | |
84 | gen_op_ ## pfx ## sub8_T0_T1 } | |
85 | ||
86 | static GenOpFunc *gen_arm_parallel_addsub[8][8] = { | |
87 | {}, | |
88 | PAS_OP(s), | |
89 | PAS_OP(q), | |
90 | PAS_OP(sh), | |
91 | {}, | |
92 | PAS_OP(u), | |
93 | PAS_OP(uq), | |
94 | PAS_OP(uh), | |
95 | }; | |
96 | #undef PAS_OP | |
97 | ||
98 | /* For unknown reasons Arm and Thumb-2 use arbitrarily diffenet encodings. */ | |
99 | #define PAS_OP(pfx) { \ | |
100 | gen_op_ ## pfx ## add8_T0_T1, \ | |
101 | gen_op_ ## pfx ## add16_T0_T1, \ | |
102 | gen_op_ ## pfx ## addsubx_T0_T1, \ | |
103 | NULL, \ | |
104 | gen_op_ ## pfx ## sub8_T0_T1, \ | |
105 | gen_op_ ## pfx ## sub16_T0_T1, \ | |
106 | gen_op_ ## pfx ## subaddx_T0_T1, \ | |
107 | NULL } | |
108 | ||
109 | static GenOpFunc *gen_thumb2_parallel_addsub[8][8] = { | |
110 | PAS_OP(s), | |
111 | PAS_OP(q), | |
112 | PAS_OP(sh), | |
113 | {}, | |
114 | PAS_OP(u), | |
115 | PAS_OP(uq), | |
116 | PAS_OP(uh), | |
117 | {} | |
118 | }; | |
119 | #undef PAS_OP | |
120 | ||
e50e6a20 | 121 | static GenOpFunc1 *gen_test_cc[14] = { |
2c0262af FB |
122 | gen_op_test_eq, |
123 | gen_op_test_ne, | |
124 | gen_op_test_cs, | |
125 | gen_op_test_cc, | |
126 | gen_op_test_mi, | |
127 | gen_op_test_pl, | |
128 | gen_op_test_vs, | |
129 | gen_op_test_vc, | |
130 | gen_op_test_hi, | |
131 | gen_op_test_ls, | |
132 | gen_op_test_ge, | |
133 | gen_op_test_lt, | |
134 | gen_op_test_gt, | |
135 | gen_op_test_le, | |
136 | }; | |
137 | ||
138 | const uint8_t table_logic_cc[16] = { | |
139 | 1, /* and */ | |
140 | 1, /* xor */ | |
141 | 0, /* sub */ | |
142 | 0, /* rsb */ | |
143 | 0, /* add */ | |
144 | 0, /* adc */ | |
145 | 0, /* sbc */ | |
146 | 0, /* rsc */ | |
147 | 1, /* andl */ | |
148 | 1, /* xorl */ | |
149 | 0, /* cmp */ | |
150 | 0, /* cmn */ | |
151 | 1, /* orr */ | |
152 | 1, /* mov */ | |
153 | 1, /* bic */ | |
154 | 1, /* mvn */ | |
155 | }; | |
3b46e624 | 156 | |
2c0262af FB |
157 | static GenOpFunc1 *gen_shift_T1_im[4] = { |
158 | gen_op_shll_T1_im, | |
159 | gen_op_shrl_T1_im, | |
160 | gen_op_sarl_T1_im, | |
161 | gen_op_rorl_T1_im, | |
162 | }; | |
163 | ||
1e8d4eec FB |
164 | static GenOpFunc *gen_shift_T1_0[4] = { |
165 | NULL, | |
166 | gen_op_shrl_T1_0, | |
167 | gen_op_sarl_T1_0, | |
168 | gen_op_rrxl_T1, | |
169 | }; | |
170 | ||
2c0262af FB |
171 | static GenOpFunc1 *gen_shift_T2_im[4] = { |
172 | gen_op_shll_T2_im, | |
173 | gen_op_shrl_T2_im, | |
174 | gen_op_sarl_T2_im, | |
175 | gen_op_rorl_T2_im, | |
176 | }; | |
177 | ||
1e8d4eec FB |
178 | static GenOpFunc *gen_shift_T2_0[4] = { |
179 | NULL, | |
180 | gen_op_shrl_T2_0, | |
181 | gen_op_sarl_T2_0, | |
182 | gen_op_rrxl_T2, | |
183 | }; | |
184 | ||
2c0262af FB |
185 | static GenOpFunc1 *gen_shift_T1_im_cc[4] = { |
186 | gen_op_shll_T1_im_cc, | |
187 | gen_op_shrl_T1_im_cc, | |
188 | gen_op_sarl_T1_im_cc, | |
189 | gen_op_rorl_T1_im_cc, | |
190 | }; | |
191 | ||
1e8d4eec FB |
192 | static GenOpFunc *gen_shift_T1_0_cc[4] = { |
193 | NULL, | |
194 | gen_op_shrl_T1_0_cc, | |
195 | gen_op_sarl_T1_0_cc, | |
196 | gen_op_rrxl_T1_cc, | |
197 | }; | |
198 | ||
2c0262af FB |
199 | static GenOpFunc *gen_shift_T1_T0[4] = { |
200 | gen_op_shll_T1_T0, | |
201 | gen_op_shrl_T1_T0, | |
202 | gen_op_sarl_T1_T0, | |
203 | gen_op_rorl_T1_T0, | |
204 | }; | |
205 | ||
206 | static GenOpFunc *gen_shift_T1_T0_cc[4] = { | |
207 | gen_op_shll_T1_T0_cc, | |
208 | gen_op_shrl_T1_T0_cc, | |
209 | gen_op_sarl_T1_T0_cc, | |
210 | gen_op_rorl_T1_T0_cc, | |
211 | }; | |
212 | ||
213 | static GenOpFunc *gen_op_movl_TN_reg[3][16] = { | |
214 | { | |
215 | gen_op_movl_T0_r0, | |
216 | gen_op_movl_T0_r1, | |
217 | gen_op_movl_T0_r2, | |
218 | gen_op_movl_T0_r3, | |
219 | gen_op_movl_T0_r4, | |
220 | gen_op_movl_T0_r5, | |
221 | gen_op_movl_T0_r6, | |
222 | gen_op_movl_T0_r7, | |
223 | gen_op_movl_T0_r8, | |
224 | gen_op_movl_T0_r9, | |
225 | gen_op_movl_T0_r10, | |
226 | gen_op_movl_T0_r11, | |
227 | gen_op_movl_T0_r12, | |
228 | gen_op_movl_T0_r13, | |
229 | gen_op_movl_T0_r14, | |
230 | gen_op_movl_T0_r15, | |
231 | }, | |
232 | { | |
233 | gen_op_movl_T1_r0, | |
234 | gen_op_movl_T1_r1, | |
235 | gen_op_movl_T1_r2, | |
236 | gen_op_movl_T1_r3, | |
237 | gen_op_movl_T1_r4, | |
238 | gen_op_movl_T1_r5, | |
239 | gen_op_movl_T1_r6, | |
240 | gen_op_movl_T1_r7, | |
241 | gen_op_movl_T1_r8, | |
242 | gen_op_movl_T1_r9, | |
243 | gen_op_movl_T1_r10, | |
244 | gen_op_movl_T1_r11, | |
245 | gen_op_movl_T1_r12, | |
246 | gen_op_movl_T1_r13, | |
247 | gen_op_movl_T1_r14, | |
248 | gen_op_movl_T1_r15, | |
249 | }, | |
250 | { | |
251 | gen_op_movl_T2_r0, | |
252 | gen_op_movl_T2_r1, | |
253 | gen_op_movl_T2_r2, | |
254 | gen_op_movl_T2_r3, | |
255 | gen_op_movl_T2_r4, | |
256 | gen_op_movl_T2_r5, | |
257 | gen_op_movl_T2_r6, | |
258 | gen_op_movl_T2_r7, | |
259 | gen_op_movl_T2_r8, | |
260 | gen_op_movl_T2_r9, | |
261 | gen_op_movl_T2_r10, | |
262 | gen_op_movl_T2_r11, | |
263 | gen_op_movl_T2_r12, | |
264 | gen_op_movl_T2_r13, | |
265 | gen_op_movl_T2_r14, | |
266 | gen_op_movl_T2_r15, | |
267 | }, | |
268 | }; | |
269 | ||
270 | static GenOpFunc *gen_op_movl_reg_TN[2][16] = { | |
271 | { | |
272 | gen_op_movl_r0_T0, | |
273 | gen_op_movl_r1_T0, | |
274 | gen_op_movl_r2_T0, | |
275 | gen_op_movl_r3_T0, | |
276 | gen_op_movl_r4_T0, | |
277 | gen_op_movl_r5_T0, | |
278 | gen_op_movl_r6_T0, | |
279 | gen_op_movl_r7_T0, | |
280 | gen_op_movl_r8_T0, | |
281 | gen_op_movl_r9_T0, | |
282 | gen_op_movl_r10_T0, | |
283 | gen_op_movl_r11_T0, | |
284 | gen_op_movl_r12_T0, | |
285 | gen_op_movl_r13_T0, | |
286 | gen_op_movl_r14_T0, | |
287 | gen_op_movl_r15_T0, | |
288 | }, | |
289 | { | |
290 | gen_op_movl_r0_T1, | |
291 | gen_op_movl_r1_T1, | |
292 | gen_op_movl_r2_T1, | |
293 | gen_op_movl_r3_T1, | |
294 | gen_op_movl_r4_T1, | |
295 | gen_op_movl_r5_T1, | |
296 | gen_op_movl_r6_T1, | |
297 | gen_op_movl_r7_T1, | |
298 | gen_op_movl_r8_T1, | |
299 | gen_op_movl_r9_T1, | |
300 | gen_op_movl_r10_T1, | |
301 | gen_op_movl_r11_T1, | |
302 | gen_op_movl_r12_T1, | |
303 | gen_op_movl_r13_T1, | |
304 | gen_op_movl_r14_T1, | |
305 | gen_op_movl_r15_T1, | |
306 | }, | |
307 | }; | |
308 | ||
309 | static GenOpFunc1 *gen_op_movl_TN_im[3] = { | |
310 | gen_op_movl_T0_im, | |
311 | gen_op_movl_T1_im, | |
312 | gen_op_movl_T2_im, | |
313 | }; | |
314 | ||
9ee6e8bb PB |
315 | static GenOpFunc1 *gen_shift_T0_im_thumb_cc[3] = { |
316 | gen_op_shll_T0_im_thumb_cc, | |
317 | gen_op_shrl_T0_im_thumb_cc, | |
318 | gen_op_sarl_T0_im_thumb_cc, | |
319 | }; | |
320 | ||
99c475ab FB |
321 | static GenOpFunc1 *gen_shift_T0_im_thumb[3] = { |
322 | gen_op_shll_T0_im_thumb, | |
323 | gen_op_shrl_T0_im_thumb, | |
324 | gen_op_sarl_T0_im_thumb, | |
325 | }; | |
326 | ||
327 | static inline void gen_bx(DisasContext *s) | |
328 | { | |
329 | s->is_jmp = DISAS_UPDATE; | |
330 | gen_op_bx_T0(); | |
331 | } | |
332 | ||
b5ff1b31 FB |
333 | |
334 | #if defined(CONFIG_USER_ONLY) | |
335 | #define gen_ldst(name, s) gen_op_##name##_raw() | |
336 | #else | |
337 | #define gen_ldst(name, s) do { \ | |
6658ffb8 | 338 | s->is_mem = 1; \ |
b5ff1b31 FB |
339 | if (IS_USER(s)) \ |
340 | gen_op_##name##_user(); \ | |
341 | else \ | |
342 | gen_op_##name##_kernel(); \ | |
343 | } while (0) | |
344 | #endif | |
345 | ||
2c0262af FB |
346 | static inline void gen_movl_TN_reg(DisasContext *s, int reg, int t) |
347 | { | |
348 | int val; | |
349 | ||
350 | if (reg == 15) { | |
5899f386 FB |
351 | /* normaly, since we updated PC, we need only to add one insn */ |
352 | if (s->thumb) | |
353 | val = (long)s->pc + 2; | |
354 | else | |
355 | val = (long)s->pc + 4; | |
2c0262af FB |
356 | gen_op_movl_TN_im[t](val); |
357 | } else { | |
358 | gen_op_movl_TN_reg[t][reg](); | |
359 | } | |
360 | } | |
361 | ||
362 | static inline void gen_movl_T0_reg(DisasContext *s, int reg) | |
363 | { | |
364 | gen_movl_TN_reg(s, reg, 0); | |
365 | } | |
366 | ||
367 | static inline void gen_movl_T1_reg(DisasContext *s, int reg) | |
368 | { | |
369 | gen_movl_TN_reg(s, reg, 1); | |
370 | } | |
371 | ||
372 | static inline void gen_movl_T2_reg(DisasContext *s, int reg) | |
373 | { | |
374 | gen_movl_TN_reg(s, reg, 2); | |
375 | } | |
376 | ||
377 | static inline void gen_movl_reg_TN(DisasContext *s, int reg, int t) | |
378 | { | |
379 | gen_op_movl_reg_TN[t][reg](); | |
380 | if (reg == 15) { | |
381 | s->is_jmp = DISAS_JUMP; | |
382 | } | |
383 | } | |
384 | ||
385 | static inline void gen_movl_reg_T0(DisasContext *s, int reg) | |
386 | { | |
387 | gen_movl_reg_TN(s, reg, 0); | |
388 | } | |
389 | ||
390 | static inline void gen_movl_reg_T1(DisasContext *s, int reg) | |
391 | { | |
392 | gen_movl_reg_TN(s, reg, 1); | |
393 | } | |
394 | ||
b5ff1b31 FB |
395 | /* Force a TB lookup after an instruction that changes the CPU state. */ |
396 | static inline void gen_lookup_tb(DisasContext *s) | |
397 | { | |
398 | gen_op_movl_T0_im(s->pc); | |
399 | gen_movl_reg_T0(s, 15); | |
400 | s->is_jmp = DISAS_UPDATE; | |
401 | } | |
402 | ||
2c0262af FB |
403 | static inline void gen_add_data_offset(DisasContext *s, unsigned int insn) |
404 | { | |
1e8d4eec | 405 | int val, rm, shift, shiftop; |
2c0262af FB |
406 | |
407 | if (!(insn & (1 << 25))) { | |
408 | /* immediate */ | |
409 | val = insn & 0xfff; | |
410 | if (!(insn & (1 << 23))) | |
411 | val = -val; | |
537730b9 FB |
412 | if (val != 0) |
413 | gen_op_addl_T1_im(val); | |
2c0262af FB |
414 | } else { |
415 | /* shift/register */ | |
416 | rm = (insn) & 0xf; | |
417 | shift = (insn >> 7) & 0x1f; | |
418 | gen_movl_T2_reg(s, rm); | |
1e8d4eec | 419 | shiftop = (insn >> 5) & 3; |
2c0262af | 420 | if (shift != 0) { |
1e8d4eec FB |
421 | gen_shift_T2_im[shiftop](shift); |
422 | } else if (shiftop != 0) { | |
423 | gen_shift_T2_0[shiftop](); | |
2c0262af FB |
424 | } |
425 | if (!(insn & (1 << 23))) | |
426 | gen_op_subl_T1_T2(); | |
427 | else | |
428 | gen_op_addl_T1_T2(); | |
429 | } | |
430 | } | |
431 | ||
191f9a93 PB |
432 | static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn, |
433 | int extra) | |
2c0262af FB |
434 | { |
435 | int val, rm; | |
3b46e624 | 436 | |
2c0262af FB |
437 | if (insn & (1 << 22)) { |
438 | /* immediate */ | |
439 | val = (insn & 0xf) | ((insn >> 4) & 0xf0); | |
440 | if (!(insn & (1 << 23))) | |
441 | val = -val; | |
18acad92 | 442 | val += extra; |
537730b9 FB |
443 | if (val != 0) |
444 | gen_op_addl_T1_im(val); | |
2c0262af FB |
445 | } else { |
446 | /* register */ | |
191f9a93 PB |
447 | if (extra) |
448 | gen_op_addl_T1_im(extra); | |
2c0262af FB |
449 | rm = (insn) & 0xf; |
450 | gen_movl_T2_reg(s, rm); | |
451 | if (!(insn & (1 << 23))) | |
452 | gen_op_subl_T1_T2(); | |
453 | else | |
454 | gen_op_addl_T1_T2(); | |
455 | } | |
456 | } | |
457 | ||
b7bcbe95 FB |
458 | #define VFP_OP(name) \ |
459 | static inline void gen_vfp_##name(int dp) \ | |
460 | { \ | |
461 | if (dp) \ | |
462 | gen_op_vfp_##name##d(); \ | |
463 | else \ | |
464 | gen_op_vfp_##name##s(); \ | |
465 | } | |
466 | ||
9ee6e8bb PB |
467 | #define VFP_OP1(name) \ |
468 | static inline void gen_vfp_##name(int dp, int arg) \ | |
469 | { \ | |
470 | if (dp) \ | |
471 | gen_op_vfp_##name##d(arg); \ | |
472 | else \ | |
473 | gen_op_vfp_##name##s(arg); \ | |
474 | } | |
475 | ||
b7bcbe95 FB |
476 | VFP_OP(add) |
477 | VFP_OP(sub) | |
478 | VFP_OP(mul) | |
479 | VFP_OP(div) | |
480 | VFP_OP(neg) | |
481 | VFP_OP(abs) | |
482 | VFP_OP(sqrt) | |
483 | VFP_OP(cmp) | |
484 | VFP_OP(cmpe) | |
485 | VFP_OP(F1_ld0) | |
486 | VFP_OP(uito) | |
487 | VFP_OP(sito) | |
488 | VFP_OP(toui) | |
489 | VFP_OP(touiz) | |
490 | VFP_OP(tosi) | |
491 | VFP_OP(tosiz) | |
9ee6e8bb PB |
492 | VFP_OP1(tosh) |
493 | VFP_OP1(tosl) | |
494 | VFP_OP1(touh) | |
495 | VFP_OP1(toul) | |
496 | VFP_OP1(shto) | |
497 | VFP_OP1(slto) | |
498 | VFP_OP1(uhto) | |
499 | VFP_OP1(ulto) | |
b7bcbe95 FB |
500 | |
501 | #undef VFP_OP | |
502 | ||
9ee6e8bb PB |
503 | static inline void gen_vfp_fconst(int dp, uint32_t val) |
504 | { | |
505 | if (dp) | |
506 | gen_op_vfp_fconstd(val); | |
507 | else | |
508 | gen_op_vfp_fconsts(val); | |
509 | } | |
510 | ||
b5ff1b31 FB |
511 | static inline void gen_vfp_ld(DisasContext *s, int dp) |
512 | { | |
513 | if (dp) | |
514 | gen_ldst(vfp_ldd, s); | |
515 | else | |
516 | gen_ldst(vfp_lds, s); | |
517 | } | |
518 | ||
519 | static inline void gen_vfp_st(DisasContext *s, int dp) | |
520 | { | |
521 | if (dp) | |
522 | gen_ldst(vfp_std, s); | |
523 | else | |
524 | gen_ldst(vfp_sts, s); | |
525 | } | |
526 | ||
8e96005d FB |
527 | static inline long |
528 | vfp_reg_offset (int dp, int reg) | |
529 | { | |
530 | if (dp) | |
531 | return offsetof(CPUARMState, vfp.regs[reg]); | |
532 | else if (reg & 1) { | |
533 | return offsetof(CPUARMState, vfp.regs[reg >> 1]) | |
534 | + offsetof(CPU_DoubleU, l.upper); | |
535 | } else { | |
536 | return offsetof(CPUARMState, vfp.regs[reg >> 1]) | |
537 | + offsetof(CPU_DoubleU, l.lower); | |
538 | } | |
539 | } | |
9ee6e8bb PB |
540 | |
541 | /* Return the offset of a 32-bit piece of a NEON register. | |
542 | zero is the least significant end of the register. */ | |
543 | static inline long | |
544 | neon_reg_offset (int reg, int n) | |
545 | { | |
546 | int sreg; | |
547 | sreg = reg * 2 + n; | |
548 | return vfp_reg_offset(0, sreg); | |
549 | } | |
550 | ||
551 | #define NEON_GET_REG(T, reg, n) gen_op_neon_getreg_##T(neon_reg_offset(reg, n)) | |
552 | #define NEON_SET_REG(T, reg, n) gen_op_neon_setreg_##T(neon_reg_offset(reg, n)) | |
553 | ||
b7bcbe95 FB |
554 | static inline void gen_mov_F0_vreg(int dp, int reg) |
555 | { | |
556 | if (dp) | |
8e96005d | 557 | gen_op_vfp_getreg_F0d(vfp_reg_offset(dp, reg)); |
b7bcbe95 | 558 | else |
8e96005d | 559 | gen_op_vfp_getreg_F0s(vfp_reg_offset(dp, reg)); |
b7bcbe95 FB |
560 | } |
561 | ||
562 | static inline void gen_mov_F1_vreg(int dp, int reg) | |
563 | { | |
564 | if (dp) | |
8e96005d | 565 | gen_op_vfp_getreg_F1d(vfp_reg_offset(dp, reg)); |
b7bcbe95 | 566 | else |
8e96005d | 567 | gen_op_vfp_getreg_F1s(vfp_reg_offset(dp, reg)); |
b7bcbe95 FB |
568 | } |
569 | ||
570 | static inline void gen_mov_vreg_F0(int dp, int reg) | |
571 | { | |
572 | if (dp) | |
8e96005d | 573 | gen_op_vfp_setreg_F0d(vfp_reg_offset(dp, reg)); |
b7bcbe95 | 574 | else |
8e96005d | 575 | gen_op_vfp_setreg_F0s(vfp_reg_offset(dp, reg)); |
b7bcbe95 FB |
576 | } |
577 | ||
18c9b560 AZ |
578 | #define ARM_CP_RW_BIT (1 << 20) |
579 | ||
580 | static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn) | |
581 | { | |
582 | int rd; | |
583 | uint32_t offset; | |
584 | ||
585 | rd = (insn >> 16) & 0xf; | |
586 | gen_movl_T1_reg(s, rd); | |
587 | ||
588 | offset = (insn & 0xff) << ((insn >> 7) & 2); | |
589 | if (insn & (1 << 24)) { | |
590 | /* Pre indexed */ | |
591 | if (insn & (1 << 23)) | |
592 | gen_op_addl_T1_im(offset); | |
593 | else | |
594 | gen_op_addl_T1_im(-offset); | |
595 | ||
596 | if (insn & (1 << 21)) | |
597 | gen_movl_reg_T1(s, rd); | |
598 | } else if (insn & (1 << 21)) { | |
599 | /* Post indexed */ | |
600 | if (insn & (1 << 23)) | |
601 | gen_op_movl_T0_im(offset); | |
602 | else | |
603 | gen_op_movl_T0_im(- offset); | |
604 | gen_op_addl_T0_T1(); | |
605 | gen_movl_reg_T0(s, rd); | |
606 | } else if (!(insn & (1 << 23))) | |
607 | return 1; | |
608 | return 0; | |
609 | } | |
610 | ||
611 | static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask) | |
612 | { | |
613 | int rd = (insn >> 0) & 0xf; | |
614 | ||
615 | if (insn & (1 << 8)) | |
616 | if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3) | |
617 | return 1; | |
618 | else | |
619 | gen_op_iwmmxt_movl_T0_wCx(rd); | |
620 | else | |
621 | gen_op_iwmmxt_movl_T0_T1_wRn(rd); | |
622 | ||
623 | gen_op_movl_T1_im(mask); | |
624 | gen_op_andl_T0_T1(); | |
625 | return 0; | |
626 | } | |
627 | ||
628 | /* Disassemble an iwMMXt instruction. Returns nonzero if an error occured | |
629 | (ie. an undefined instruction). */ | |
630 | static int disas_iwmmxt_insn(CPUState *env, DisasContext *s, uint32_t insn) | |
631 | { | |
632 | int rd, wrd; | |
633 | int rdhi, rdlo, rd0, rd1, i; | |
634 | ||
635 | if ((insn & 0x0e000e00) == 0x0c000000) { | |
636 | if ((insn & 0x0fe00ff0) == 0x0c400000) { | |
637 | wrd = insn & 0xf; | |
638 | rdlo = (insn >> 12) & 0xf; | |
639 | rdhi = (insn >> 16) & 0xf; | |
640 | if (insn & ARM_CP_RW_BIT) { /* TMRRC */ | |
641 | gen_op_iwmmxt_movl_T0_T1_wRn(wrd); | |
642 | gen_movl_reg_T0(s, rdlo); | |
643 | gen_movl_reg_T1(s, rdhi); | |
644 | } else { /* TMCRR */ | |
645 | gen_movl_T0_reg(s, rdlo); | |
646 | gen_movl_T1_reg(s, rdhi); | |
647 | gen_op_iwmmxt_movl_wRn_T0_T1(wrd); | |
648 | gen_op_iwmmxt_set_mup(); | |
649 | } | |
650 | return 0; | |
651 | } | |
652 | ||
653 | wrd = (insn >> 12) & 0xf; | |
654 | if (gen_iwmmxt_address(s, insn)) | |
655 | return 1; | |
656 | if (insn & ARM_CP_RW_BIT) { | |
657 | if ((insn >> 28) == 0xf) { /* WLDRW wCx */ | |
658 | gen_ldst(ldl, s); | |
659 | gen_op_iwmmxt_movl_wCx_T0(wrd); | |
660 | } else { | |
661 | if (insn & (1 << 8)) | |
662 | if (insn & (1 << 22)) /* WLDRD */ | |
663 | gen_ldst(iwmmxt_ldq, s); | |
664 | else /* WLDRW wRd */ | |
665 | gen_ldst(iwmmxt_ldl, s); | |
666 | else | |
667 | if (insn & (1 << 22)) /* WLDRH */ | |
668 | gen_ldst(iwmmxt_ldw, s); | |
669 | else /* WLDRB */ | |
670 | gen_ldst(iwmmxt_ldb, s); | |
671 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
672 | } | |
673 | } else { | |
674 | if ((insn >> 28) == 0xf) { /* WSTRW wCx */ | |
675 | gen_op_iwmmxt_movl_T0_wCx(wrd); | |
676 | gen_ldst(stl, s); | |
677 | } else { | |
678 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
679 | if (insn & (1 << 8)) | |
680 | if (insn & (1 << 22)) /* WSTRD */ | |
681 | gen_ldst(iwmmxt_stq, s); | |
682 | else /* WSTRW wRd */ | |
683 | gen_ldst(iwmmxt_stl, s); | |
684 | else | |
685 | if (insn & (1 << 22)) /* WSTRH */ | |
686 | gen_ldst(iwmmxt_ldw, s); | |
687 | else /* WSTRB */ | |
688 | gen_ldst(iwmmxt_stb, s); | |
689 | } | |
690 | } | |
691 | return 0; | |
692 | } | |
693 | ||
694 | if ((insn & 0x0f000000) != 0x0e000000) | |
695 | return 1; | |
696 | ||
697 | switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) { | |
698 | case 0x000: /* WOR */ | |
699 | wrd = (insn >> 12) & 0xf; | |
700 | rd0 = (insn >> 0) & 0xf; | |
701 | rd1 = (insn >> 16) & 0xf; | |
702 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
703 | gen_op_iwmmxt_orq_M0_wRn(rd1); | |
704 | gen_op_iwmmxt_setpsr_nz(); | |
705 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
706 | gen_op_iwmmxt_set_mup(); | |
707 | gen_op_iwmmxt_set_cup(); | |
708 | break; | |
709 | case 0x011: /* TMCR */ | |
710 | if (insn & 0xf) | |
711 | return 1; | |
712 | rd = (insn >> 12) & 0xf; | |
713 | wrd = (insn >> 16) & 0xf; | |
714 | switch (wrd) { | |
715 | case ARM_IWMMXT_wCID: | |
716 | case ARM_IWMMXT_wCASF: | |
717 | break; | |
718 | case ARM_IWMMXT_wCon: | |
719 | gen_op_iwmmxt_set_cup(); | |
720 | /* Fall through. */ | |
721 | case ARM_IWMMXT_wCSSF: | |
722 | gen_op_iwmmxt_movl_T0_wCx(wrd); | |
723 | gen_movl_T1_reg(s, rd); | |
724 | gen_op_bicl_T0_T1(); | |
725 | gen_op_iwmmxt_movl_wCx_T0(wrd); | |
726 | break; | |
727 | case ARM_IWMMXT_wCGR0: | |
728 | case ARM_IWMMXT_wCGR1: | |
729 | case ARM_IWMMXT_wCGR2: | |
730 | case ARM_IWMMXT_wCGR3: | |
731 | gen_op_iwmmxt_set_cup(); | |
732 | gen_movl_reg_T0(s, rd); | |
733 | gen_op_iwmmxt_movl_wCx_T0(wrd); | |
734 | break; | |
735 | default: | |
736 | return 1; | |
737 | } | |
738 | break; | |
739 | case 0x100: /* WXOR */ | |
740 | wrd = (insn >> 12) & 0xf; | |
741 | rd0 = (insn >> 0) & 0xf; | |
742 | rd1 = (insn >> 16) & 0xf; | |
743 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
744 | gen_op_iwmmxt_xorq_M0_wRn(rd1); | |
745 | gen_op_iwmmxt_setpsr_nz(); | |
746 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
747 | gen_op_iwmmxt_set_mup(); | |
748 | gen_op_iwmmxt_set_cup(); | |
749 | break; | |
750 | case 0x111: /* TMRC */ | |
751 | if (insn & 0xf) | |
752 | return 1; | |
753 | rd = (insn >> 12) & 0xf; | |
754 | wrd = (insn >> 16) & 0xf; | |
755 | gen_op_iwmmxt_movl_T0_wCx(wrd); | |
756 | gen_movl_reg_T0(s, rd); | |
757 | break; | |
758 | case 0x300: /* WANDN */ | |
759 | wrd = (insn >> 12) & 0xf; | |
760 | rd0 = (insn >> 0) & 0xf; | |
761 | rd1 = (insn >> 16) & 0xf; | |
762 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
763 | gen_op_iwmmxt_negq_M0(); | |
764 | gen_op_iwmmxt_andq_M0_wRn(rd1); | |
765 | gen_op_iwmmxt_setpsr_nz(); | |
766 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
767 | gen_op_iwmmxt_set_mup(); | |
768 | gen_op_iwmmxt_set_cup(); | |
769 | break; | |
770 | case 0x200: /* WAND */ | |
771 | wrd = (insn >> 12) & 0xf; | |
772 | rd0 = (insn >> 0) & 0xf; | |
773 | rd1 = (insn >> 16) & 0xf; | |
774 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
775 | gen_op_iwmmxt_andq_M0_wRn(rd1); | |
776 | gen_op_iwmmxt_setpsr_nz(); | |
777 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
778 | gen_op_iwmmxt_set_mup(); | |
779 | gen_op_iwmmxt_set_cup(); | |
780 | break; | |
781 | case 0x810: case 0xa10: /* WMADD */ | |
782 | wrd = (insn >> 12) & 0xf; | |
783 | rd0 = (insn >> 0) & 0xf; | |
784 | rd1 = (insn >> 16) & 0xf; | |
785 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
786 | if (insn & (1 << 21)) | |
787 | gen_op_iwmmxt_maddsq_M0_wRn(rd1); | |
788 | else | |
789 | gen_op_iwmmxt_madduq_M0_wRn(rd1); | |
790 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
791 | gen_op_iwmmxt_set_mup(); | |
792 | break; | |
793 | case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */ | |
794 | wrd = (insn >> 12) & 0xf; | |
795 | rd0 = (insn >> 16) & 0xf; | |
796 | rd1 = (insn >> 0) & 0xf; | |
797 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
798 | switch ((insn >> 22) & 3) { | |
799 | case 0: | |
800 | gen_op_iwmmxt_unpacklb_M0_wRn(rd1); | |
801 | break; | |
802 | case 1: | |
803 | gen_op_iwmmxt_unpacklw_M0_wRn(rd1); | |
804 | break; | |
805 | case 2: | |
806 | gen_op_iwmmxt_unpackll_M0_wRn(rd1); | |
807 | break; | |
808 | case 3: | |
809 | return 1; | |
810 | } | |
811 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
812 | gen_op_iwmmxt_set_mup(); | |
813 | gen_op_iwmmxt_set_cup(); | |
814 | break; | |
815 | case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */ | |
816 | wrd = (insn >> 12) & 0xf; | |
817 | rd0 = (insn >> 16) & 0xf; | |
818 | rd1 = (insn >> 0) & 0xf; | |
819 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
820 | switch ((insn >> 22) & 3) { | |
821 | case 0: | |
822 | gen_op_iwmmxt_unpackhb_M0_wRn(rd1); | |
823 | break; | |
824 | case 1: | |
825 | gen_op_iwmmxt_unpackhw_M0_wRn(rd1); | |
826 | break; | |
827 | case 2: | |
828 | gen_op_iwmmxt_unpackhl_M0_wRn(rd1); | |
829 | break; | |
830 | case 3: | |
831 | return 1; | |
832 | } | |
833 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
834 | gen_op_iwmmxt_set_mup(); | |
835 | gen_op_iwmmxt_set_cup(); | |
836 | break; | |
837 | case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */ | |
838 | wrd = (insn >> 12) & 0xf; | |
839 | rd0 = (insn >> 16) & 0xf; | |
840 | rd1 = (insn >> 0) & 0xf; | |
841 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
842 | if (insn & (1 << 22)) | |
843 | gen_op_iwmmxt_sadw_M0_wRn(rd1); | |
844 | else | |
845 | gen_op_iwmmxt_sadb_M0_wRn(rd1); | |
846 | if (!(insn & (1 << 20))) | |
847 | gen_op_iwmmxt_addl_M0_wRn(wrd); | |
848 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
849 | gen_op_iwmmxt_set_mup(); | |
850 | break; | |
851 | case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */ | |
852 | wrd = (insn >> 12) & 0xf; | |
853 | rd0 = (insn >> 16) & 0xf; | |
854 | rd1 = (insn >> 0) & 0xf; | |
855 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
856 | if (insn & (1 << 21)) | |
857 | gen_op_iwmmxt_mulsw_M0_wRn(rd1, (insn & (1 << 20)) ? 16 : 0); | |
858 | else | |
859 | gen_op_iwmmxt_muluw_M0_wRn(rd1, (insn & (1 << 20)) ? 16 : 0); | |
860 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
861 | gen_op_iwmmxt_set_mup(); | |
862 | break; | |
863 | case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */ | |
864 | wrd = (insn >> 12) & 0xf; | |
865 | rd0 = (insn >> 16) & 0xf; | |
866 | rd1 = (insn >> 0) & 0xf; | |
867 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
868 | if (insn & (1 << 21)) | |
869 | gen_op_iwmmxt_macsw_M0_wRn(rd1); | |
870 | else | |
871 | gen_op_iwmmxt_macuw_M0_wRn(rd1); | |
872 | if (!(insn & (1 << 20))) { | |
873 | if (insn & (1 << 21)) | |
874 | gen_op_iwmmxt_addsq_M0_wRn(wrd); | |
875 | else | |
876 | gen_op_iwmmxt_adduq_M0_wRn(wrd); | |
877 | } | |
878 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
879 | gen_op_iwmmxt_set_mup(); | |
880 | break; | |
881 | case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */ | |
882 | wrd = (insn >> 12) & 0xf; | |
883 | rd0 = (insn >> 16) & 0xf; | |
884 | rd1 = (insn >> 0) & 0xf; | |
885 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
886 | switch ((insn >> 22) & 3) { | |
887 | case 0: | |
888 | gen_op_iwmmxt_cmpeqb_M0_wRn(rd1); | |
889 | break; | |
890 | case 1: | |
891 | gen_op_iwmmxt_cmpeqw_M0_wRn(rd1); | |
892 | break; | |
893 | case 2: | |
894 | gen_op_iwmmxt_cmpeql_M0_wRn(rd1); | |
895 | break; | |
896 | case 3: | |
897 | return 1; | |
898 | } | |
899 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
900 | gen_op_iwmmxt_set_mup(); | |
901 | gen_op_iwmmxt_set_cup(); | |
902 | break; | |
903 | case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */ | |
904 | wrd = (insn >> 12) & 0xf; | |
905 | rd0 = (insn >> 16) & 0xf; | |
906 | rd1 = (insn >> 0) & 0xf; | |
907 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
908 | if (insn & (1 << 22)) | |
909 | gen_op_iwmmxt_avgw_M0_wRn(rd1, (insn >> 20) & 1); | |
910 | else | |
911 | gen_op_iwmmxt_avgb_M0_wRn(rd1, (insn >> 20) & 1); | |
912 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
913 | gen_op_iwmmxt_set_mup(); | |
914 | gen_op_iwmmxt_set_cup(); | |
915 | break; | |
916 | case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */ | |
917 | wrd = (insn >> 12) & 0xf; | |
918 | rd0 = (insn >> 16) & 0xf; | |
919 | rd1 = (insn >> 0) & 0xf; | |
920 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
921 | gen_op_iwmmxt_movl_T0_wCx(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3)); | |
922 | gen_op_movl_T1_im(7); | |
923 | gen_op_andl_T0_T1(); | |
924 | gen_op_iwmmxt_align_M0_T0_wRn(rd1); | |
925 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
926 | gen_op_iwmmxt_set_mup(); | |
927 | break; | |
928 | case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */ | |
929 | rd = (insn >> 12) & 0xf; | |
930 | wrd = (insn >> 16) & 0xf; | |
931 | gen_movl_T0_reg(s, rd); | |
932 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
933 | switch ((insn >> 6) & 3) { | |
934 | case 0: | |
935 | gen_op_movl_T1_im(0xff); | |
936 | gen_op_iwmmxt_insr_M0_T0_T1((insn & 7) << 3); | |
937 | break; | |
938 | case 1: | |
939 | gen_op_movl_T1_im(0xffff); | |
940 | gen_op_iwmmxt_insr_M0_T0_T1((insn & 3) << 4); | |
941 | break; | |
942 | case 2: | |
943 | gen_op_movl_T1_im(0xffffffff); | |
944 | gen_op_iwmmxt_insr_M0_T0_T1((insn & 1) << 5); | |
945 | break; | |
946 | case 3: | |
947 | return 1; | |
948 | } | |
949 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
950 | gen_op_iwmmxt_set_mup(); | |
951 | break; | |
952 | case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */ | |
953 | rd = (insn >> 12) & 0xf; | |
954 | wrd = (insn >> 16) & 0xf; | |
955 | if (rd == 15) | |
956 | return 1; | |
957 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
958 | switch ((insn >> 22) & 3) { | |
959 | case 0: | |
960 | if (insn & 8) | |
961 | gen_op_iwmmxt_extrsb_T0_M0((insn & 7) << 3); | |
962 | else { | |
963 | gen_op_movl_T1_im(0xff); | |
964 | gen_op_iwmmxt_extru_T0_M0_T1((insn & 7) << 3); | |
965 | } | |
966 | break; | |
967 | case 1: | |
968 | if (insn & 8) | |
969 | gen_op_iwmmxt_extrsw_T0_M0((insn & 3) << 4); | |
970 | else { | |
971 | gen_op_movl_T1_im(0xffff); | |
972 | gen_op_iwmmxt_extru_T0_M0_T1((insn & 3) << 4); | |
973 | } | |
974 | break; | |
975 | case 2: | |
976 | gen_op_movl_T1_im(0xffffffff); | |
977 | gen_op_iwmmxt_extru_T0_M0_T1((insn & 1) << 5); | |
978 | break; | |
979 | case 3: | |
980 | return 1; | |
981 | } | |
982 | gen_op_movl_reg_TN[0][rd](); | |
983 | break; | |
984 | case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */ | |
985 | if ((insn & 0x000ff008) != 0x0003f000) | |
986 | return 1; | |
987 | gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF); | |
988 | switch ((insn >> 22) & 3) { | |
989 | case 0: | |
990 | gen_op_shrl_T1_im(((insn & 7) << 2) + 0); | |
991 | break; | |
992 | case 1: | |
993 | gen_op_shrl_T1_im(((insn & 3) << 3) + 4); | |
994 | break; | |
995 | case 2: | |
996 | gen_op_shrl_T1_im(((insn & 1) << 4) + 12); | |
997 | break; | |
998 | case 3: | |
999 | return 1; | |
1000 | } | |
1001 | gen_op_shll_T1_im(28); | |
1002 | gen_op_movl_T0_T1(); | |
1003 | gen_op_movl_cpsr_T0(0xf0000000); | |
1004 | break; | |
1005 | case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */ | |
1006 | rd = (insn >> 12) & 0xf; | |
1007 | wrd = (insn >> 16) & 0xf; | |
1008 | gen_movl_T0_reg(s, rd); | |
1009 | switch ((insn >> 6) & 3) { | |
1010 | case 0: | |
1011 | gen_op_iwmmxt_bcstb_M0_T0(); | |
1012 | break; | |
1013 | case 1: | |
1014 | gen_op_iwmmxt_bcstw_M0_T0(); | |
1015 | break; | |
1016 | case 2: | |
1017 | gen_op_iwmmxt_bcstl_M0_T0(); | |
1018 | break; | |
1019 | case 3: | |
1020 | return 1; | |
1021 | } | |
1022 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1023 | gen_op_iwmmxt_set_mup(); | |
1024 | break; | |
1025 | case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */ | |
1026 | if ((insn & 0x000ff00f) != 0x0003f000) | |
1027 | return 1; | |
1028 | gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF); | |
1029 | switch ((insn >> 22) & 3) { | |
1030 | case 0: | |
1031 | for (i = 0; i < 7; i ++) { | |
1032 | gen_op_shll_T1_im(4); | |
1033 | gen_op_andl_T0_T1(); | |
1034 | } | |
1035 | break; | |
1036 | case 1: | |
1037 | for (i = 0; i < 3; i ++) { | |
1038 | gen_op_shll_T1_im(8); | |
1039 | gen_op_andl_T0_T1(); | |
1040 | } | |
1041 | break; | |
1042 | case 2: | |
1043 | gen_op_shll_T1_im(16); | |
1044 | gen_op_andl_T0_T1(); | |
1045 | break; | |
1046 | case 3: | |
1047 | return 1; | |
1048 | } | |
1049 | gen_op_movl_cpsr_T0(0xf0000000); | |
1050 | break; | |
1051 | case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */ | |
1052 | wrd = (insn >> 12) & 0xf; | |
1053 | rd0 = (insn >> 16) & 0xf; | |
1054 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1055 | switch ((insn >> 22) & 3) { | |
1056 | case 0: | |
1057 | gen_op_iwmmxt_addcb_M0(); | |
1058 | break; | |
1059 | case 1: | |
1060 | gen_op_iwmmxt_addcw_M0(); | |
1061 | break; | |
1062 | case 2: | |
1063 | gen_op_iwmmxt_addcl_M0(); | |
1064 | break; | |
1065 | case 3: | |
1066 | return 1; | |
1067 | } | |
1068 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1069 | gen_op_iwmmxt_set_mup(); | |
1070 | break; | |
1071 | case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */ | |
1072 | if ((insn & 0x000ff00f) != 0x0003f000) | |
1073 | return 1; | |
1074 | gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF); | |
1075 | switch ((insn >> 22) & 3) { | |
1076 | case 0: | |
1077 | for (i = 0; i < 7; i ++) { | |
1078 | gen_op_shll_T1_im(4); | |
1079 | gen_op_orl_T0_T1(); | |
1080 | } | |
1081 | break; | |
1082 | case 1: | |
1083 | for (i = 0; i < 3; i ++) { | |
1084 | gen_op_shll_T1_im(8); | |
1085 | gen_op_orl_T0_T1(); | |
1086 | } | |
1087 | break; | |
1088 | case 2: | |
1089 | gen_op_shll_T1_im(16); | |
1090 | gen_op_orl_T0_T1(); | |
1091 | break; | |
1092 | case 3: | |
1093 | return 1; | |
1094 | } | |
1095 | gen_op_movl_T1_im(0xf0000000); | |
1096 | gen_op_andl_T0_T1(); | |
1097 | gen_op_movl_cpsr_T0(0xf0000000); | |
1098 | break; | |
1099 | case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */ | |
1100 | rd = (insn >> 12) & 0xf; | |
1101 | rd0 = (insn >> 16) & 0xf; | |
1102 | if ((insn & 0xf) != 0) | |
1103 | return 1; | |
1104 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1105 | switch ((insn >> 22) & 3) { | |
1106 | case 0: | |
1107 | gen_op_iwmmxt_msbb_T0_M0(); | |
1108 | break; | |
1109 | case 1: | |
1110 | gen_op_iwmmxt_msbw_T0_M0(); | |
1111 | break; | |
1112 | case 2: | |
1113 | gen_op_iwmmxt_msbl_T0_M0(); | |
1114 | break; | |
1115 | case 3: | |
1116 | return 1; | |
1117 | } | |
1118 | gen_movl_reg_T0(s, rd); | |
1119 | break; | |
1120 | case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */ | |
1121 | case 0x906: case 0xb06: case 0xd06: case 0xf06: | |
1122 | wrd = (insn >> 12) & 0xf; | |
1123 | rd0 = (insn >> 16) & 0xf; | |
1124 | rd1 = (insn >> 0) & 0xf; | |
1125 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1126 | switch ((insn >> 22) & 3) { | |
1127 | case 0: | |
1128 | if (insn & (1 << 21)) | |
1129 | gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1); | |
1130 | else | |
1131 | gen_op_iwmmxt_cmpgtub_M0_wRn(rd1); | |
1132 | break; | |
1133 | case 1: | |
1134 | if (insn & (1 << 21)) | |
1135 | gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1); | |
1136 | else | |
1137 | gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1); | |
1138 | break; | |
1139 | case 2: | |
1140 | if (insn & (1 << 21)) | |
1141 | gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1); | |
1142 | else | |
1143 | gen_op_iwmmxt_cmpgtul_M0_wRn(rd1); | |
1144 | break; | |
1145 | case 3: | |
1146 | return 1; | |
1147 | } | |
1148 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1149 | gen_op_iwmmxt_set_mup(); | |
1150 | gen_op_iwmmxt_set_cup(); | |
1151 | break; | |
1152 | case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */ | |
1153 | case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e: | |
1154 | wrd = (insn >> 12) & 0xf; | |
1155 | rd0 = (insn >> 16) & 0xf; | |
1156 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1157 | switch ((insn >> 22) & 3) { | |
1158 | case 0: | |
1159 | if (insn & (1 << 21)) | |
1160 | gen_op_iwmmxt_unpacklsb_M0(); | |
1161 | else | |
1162 | gen_op_iwmmxt_unpacklub_M0(); | |
1163 | break; | |
1164 | case 1: | |
1165 | if (insn & (1 << 21)) | |
1166 | gen_op_iwmmxt_unpacklsw_M0(); | |
1167 | else | |
1168 | gen_op_iwmmxt_unpackluw_M0(); | |
1169 | break; | |
1170 | case 2: | |
1171 | if (insn & (1 << 21)) | |
1172 | gen_op_iwmmxt_unpacklsl_M0(); | |
1173 | else | |
1174 | gen_op_iwmmxt_unpacklul_M0(); | |
1175 | break; | |
1176 | case 3: | |
1177 | return 1; | |
1178 | } | |
1179 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1180 | gen_op_iwmmxt_set_mup(); | |
1181 | gen_op_iwmmxt_set_cup(); | |
1182 | break; | |
1183 | case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */ | |
1184 | case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c: | |
1185 | wrd = (insn >> 12) & 0xf; | |
1186 | rd0 = (insn >> 16) & 0xf; | |
1187 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1188 | switch ((insn >> 22) & 3) { | |
1189 | case 0: | |
1190 | if (insn & (1 << 21)) | |
1191 | gen_op_iwmmxt_unpackhsb_M0(); | |
1192 | else | |
1193 | gen_op_iwmmxt_unpackhub_M0(); | |
1194 | break; | |
1195 | case 1: | |
1196 | if (insn & (1 << 21)) | |
1197 | gen_op_iwmmxt_unpackhsw_M0(); | |
1198 | else | |
1199 | gen_op_iwmmxt_unpackhuw_M0(); | |
1200 | break; | |
1201 | case 2: | |
1202 | if (insn & (1 << 21)) | |
1203 | gen_op_iwmmxt_unpackhsl_M0(); | |
1204 | else | |
1205 | gen_op_iwmmxt_unpackhul_M0(); | |
1206 | break; | |
1207 | case 3: | |
1208 | return 1; | |
1209 | } | |
1210 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1211 | gen_op_iwmmxt_set_mup(); | |
1212 | gen_op_iwmmxt_set_cup(); | |
1213 | break; | |
1214 | case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */ | |
1215 | case 0x214: case 0x614: case 0xa14: case 0xe14: | |
1216 | wrd = (insn >> 12) & 0xf; | |
1217 | rd0 = (insn >> 16) & 0xf; | |
1218 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1219 | if (gen_iwmmxt_shift(insn, 0xff)) | |
1220 | return 1; | |
1221 | switch ((insn >> 22) & 3) { | |
1222 | case 0: | |
1223 | return 1; | |
1224 | case 1: | |
1225 | gen_op_iwmmxt_srlw_M0_T0(); | |
1226 | break; | |
1227 | case 2: | |
1228 | gen_op_iwmmxt_srll_M0_T0(); | |
1229 | break; | |
1230 | case 3: | |
1231 | gen_op_iwmmxt_srlq_M0_T0(); | |
1232 | break; | |
1233 | } | |
1234 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1235 | gen_op_iwmmxt_set_mup(); | |
1236 | gen_op_iwmmxt_set_cup(); | |
1237 | break; | |
1238 | case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */ | |
1239 | case 0x014: case 0x414: case 0x814: case 0xc14: | |
1240 | wrd = (insn >> 12) & 0xf; | |
1241 | rd0 = (insn >> 16) & 0xf; | |
1242 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1243 | if (gen_iwmmxt_shift(insn, 0xff)) | |
1244 | return 1; | |
1245 | switch ((insn >> 22) & 3) { | |
1246 | case 0: | |
1247 | return 1; | |
1248 | case 1: | |
1249 | gen_op_iwmmxt_sraw_M0_T0(); | |
1250 | break; | |
1251 | case 2: | |
1252 | gen_op_iwmmxt_sral_M0_T0(); | |
1253 | break; | |
1254 | case 3: | |
1255 | gen_op_iwmmxt_sraq_M0_T0(); | |
1256 | break; | |
1257 | } | |
1258 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1259 | gen_op_iwmmxt_set_mup(); | |
1260 | gen_op_iwmmxt_set_cup(); | |
1261 | break; | |
1262 | case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */ | |
1263 | case 0x114: case 0x514: case 0x914: case 0xd14: | |
1264 | wrd = (insn >> 12) & 0xf; | |
1265 | rd0 = (insn >> 16) & 0xf; | |
1266 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1267 | if (gen_iwmmxt_shift(insn, 0xff)) | |
1268 | return 1; | |
1269 | switch ((insn >> 22) & 3) { | |
1270 | case 0: | |
1271 | return 1; | |
1272 | case 1: | |
1273 | gen_op_iwmmxt_sllw_M0_T0(); | |
1274 | break; | |
1275 | case 2: | |
1276 | gen_op_iwmmxt_slll_M0_T0(); | |
1277 | break; | |
1278 | case 3: | |
1279 | gen_op_iwmmxt_sllq_M0_T0(); | |
1280 | break; | |
1281 | } | |
1282 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1283 | gen_op_iwmmxt_set_mup(); | |
1284 | gen_op_iwmmxt_set_cup(); | |
1285 | break; | |
1286 | case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */ | |
1287 | case 0x314: case 0x714: case 0xb14: case 0xf14: | |
1288 | wrd = (insn >> 12) & 0xf; | |
1289 | rd0 = (insn >> 16) & 0xf; | |
1290 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1291 | switch ((insn >> 22) & 3) { | |
1292 | case 0: | |
1293 | return 1; | |
1294 | case 1: | |
1295 | if (gen_iwmmxt_shift(insn, 0xf)) | |
1296 | return 1; | |
1297 | gen_op_iwmmxt_rorw_M0_T0(); | |
1298 | break; | |
1299 | case 2: | |
1300 | if (gen_iwmmxt_shift(insn, 0x1f)) | |
1301 | return 1; | |
1302 | gen_op_iwmmxt_rorl_M0_T0(); | |
1303 | break; | |
1304 | case 3: | |
1305 | if (gen_iwmmxt_shift(insn, 0x3f)) | |
1306 | return 1; | |
1307 | gen_op_iwmmxt_rorq_M0_T0(); | |
1308 | break; | |
1309 | } | |
1310 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1311 | gen_op_iwmmxt_set_mup(); | |
1312 | gen_op_iwmmxt_set_cup(); | |
1313 | break; | |
1314 | case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */ | |
1315 | case 0x916: case 0xb16: case 0xd16: case 0xf16: | |
1316 | wrd = (insn >> 12) & 0xf; | |
1317 | rd0 = (insn >> 16) & 0xf; | |
1318 | rd1 = (insn >> 0) & 0xf; | |
1319 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1320 | switch ((insn >> 22) & 3) { | |
1321 | case 0: | |
1322 | if (insn & (1 << 21)) | |
1323 | gen_op_iwmmxt_minsb_M0_wRn(rd1); | |
1324 | else | |
1325 | gen_op_iwmmxt_minub_M0_wRn(rd1); | |
1326 | break; | |
1327 | case 1: | |
1328 | if (insn & (1 << 21)) | |
1329 | gen_op_iwmmxt_minsw_M0_wRn(rd1); | |
1330 | else | |
1331 | gen_op_iwmmxt_minuw_M0_wRn(rd1); | |
1332 | break; | |
1333 | case 2: | |
1334 | if (insn & (1 << 21)) | |
1335 | gen_op_iwmmxt_minsl_M0_wRn(rd1); | |
1336 | else | |
1337 | gen_op_iwmmxt_minul_M0_wRn(rd1); | |
1338 | break; | |
1339 | case 3: | |
1340 | return 1; | |
1341 | } | |
1342 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1343 | gen_op_iwmmxt_set_mup(); | |
1344 | break; | |
1345 | case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */ | |
1346 | case 0x816: case 0xa16: case 0xc16: case 0xe16: | |
1347 | wrd = (insn >> 12) & 0xf; | |
1348 | rd0 = (insn >> 16) & 0xf; | |
1349 | rd1 = (insn >> 0) & 0xf; | |
1350 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1351 | switch ((insn >> 22) & 3) { | |
1352 | case 0: | |
1353 | if (insn & (1 << 21)) | |
1354 | gen_op_iwmmxt_maxsb_M0_wRn(rd1); | |
1355 | else | |
1356 | gen_op_iwmmxt_maxub_M0_wRn(rd1); | |
1357 | break; | |
1358 | case 1: | |
1359 | if (insn & (1 << 21)) | |
1360 | gen_op_iwmmxt_maxsw_M0_wRn(rd1); | |
1361 | else | |
1362 | gen_op_iwmmxt_maxuw_M0_wRn(rd1); | |
1363 | break; | |
1364 | case 2: | |
1365 | if (insn & (1 << 21)) | |
1366 | gen_op_iwmmxt_maxsl_M0_wRn(rd1); | |
1367 | else | |
1368 | gen_op_iwmmxt_maxul_M0_wRn(rd1); | |
1369 | break; | |
1370 | case 3: | |
1371 | return 1; | |
1372 | } | |
1373 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1374 | gen_op_iwmmxt_set_mup(); | |
1375 | break; | |
1376 | case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */ | |
1377 | case 0x402: case 0x502: case 0x602: case 0x702: | |
1378 | wrd = (insn >> 12) & 0xf; | |
1379 | rd0 = (insn >> 16) & 0xf; | |
1380 | rd1 = (insn >> 0) & 0xf; | |
1381 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1382 | gen_op_movl_T0_im((insn >> 20) & 3); | |
1383 | gen_op_iwmmxt_align_M0_T0_wRn(rd1); | |
1384 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1385 | gen_op_iwmmxt_set_mup(); | |
1386 | break; | |
1387 | case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */ | |
1388 | case 0x41a: case 0x51a: case 0x61a: case 0x71a: | |
1389 | case 0x81a: case 0x91a: case 0xa1a: case 0xb1a: | |
1390 | case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a: | |
1391 | wrd = (insn >> 12) & 0xf; | |
1392 | rd0 = (insn >> 16) & 0xf; | |
1393 | rd1 = (insn >> 0) & 0xf; | |
1394 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1395 | switch ((insn >> 20) & 0xf) { | |
1396 | case 0x0: | |
1397 | gen_op_iwmmxt_subnb_M0_wRn(rd1); | |
1398 | break; | |
1399 | case 0x1: | |
1400 | gen_op_iwmmxt_subub_M0_wRn(rd1); | |
1401 | break; | |
1402 | case 0x3: | |
1403 | gen_op_iwmmxt_subsb_M0_wRn(rd1); | |
1404 | break; | |
1405 | case 0x4: | |
1406 | gen_op_iwmmxt_subnw_M0_wRn(rd1); | |
1407 | break; | |
1408 | case 0x5: | |
1409 | gen_op_iwmmxt_subuw_M0_wRn(rd1); | |
1410 | break; | |
1411 | case 0x7: | |
1412 | gen_op_iwmmxt_subsw_M0_wRn(rd1); | |
1413 | break; | |
1414 | case 0x8: | |
1415 | gen_op_iwmmxt_subnl_M0_wRn(rd1); | |
1416 | break; | |
1417 | case 0x9: | |
1418 | gen_op_iwmmxt_subul_M0_wRn(rd1); | |
1419 | break; | |
1420 | case 0xb: | |
1421 | gen_op_iwmmxt_subsl_M0_wRn(rd1); | |
1422 | break; | |
1423 | default: | |
1424 | return 1; | |
1425 | } | |
1426 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1427 | gen_op_iwmmxt_set_mup(); | |
1428 | gen_op_iwmmxt_set_cup(); | |
1429 | break; | |
1430 | case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */ | |
1431 | case 0x41e: case 0x51e: case 0x61e: case 0x71e: | |
1432 | case 0x81e: case 0x91e: case 0xa1e: case 0xb1e: | |
1433 | case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e: | |
1434 | wrd = (insn >> 12) & 0xf; | |
1435 | rd0 = (insn >> 16) & 0xf; | |
1436 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1437 | gen_op_movl_T0_im(((insn >> 16) & 0xf0) | (insn & 0x0f)); | |
1438 | gen_op_iwmmxt_shufh_M0_T0(); | |
1439 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1440 | gen_op_iwmmxt_set_mup(); | |
1441 | gen_op_iwmmxt_set_cup(); | |
1442 | break; | |
1443 | case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */ | |
1444 | case 0x418: case 0x518: case 0x618: case 0x718: | |
1445 | case 0x818: case 0x918: case 0xa18: case 0xb18: | |
1446 | case 0xc18: case 0xd18: case 0xe18: case 0xf18: | |
1447 | wrd = (insn >> 12) & 0xf; | |
1448 | rd0 = (insn >> 16) & 0xf; | |
1449 | rd1 = (insn >> 0) & 0xf; | |
1450 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1451 | switch ((insn >> 20) & 0xf) { | |
1452 | case 0x0: | |
1453 | gen_op_iwmmxt_addnb_M0_wRn(rd1); | |
1454 | break; | |
1455 | case 0x1: | |
1456 | gen_op_iwmmxt_addub_M0_wRn(rd1); | |
1457 | break; | |
1458 | case 0x3: | |
1459 | gen_op_iwmmxt_addsb_M0_wRn(rd1); | |
1460 | break; | |
1461 | case 0x4: | |
1462 | gen_op_iwmmxt_addnw_M0_wRn(rd1); | |
1463 | break; | |
1464 | case 0x5: | |
1465 | gen_op_iwmmxt_adduw_M0_wRn(rd1); | |
1466 | break; | |
1467 | case 0x7: | |
1468 | gen_op_iwmmxt_addsw_M0_wRn(rd1); | |
1469 | break; | |
1470 | case 0x8: | |
1471 | gen_op_iwmmxt_addnl_M0_wRn(rd1); | |
1472 | break; | |
1473 | case 0x9: | |
1474 | gen_op_iwmmxt_addul_M0_wRn(rd1); | |
1475 | break; | |
1476 | case 0xb: | |
1477 | gen_op_iwmmxt_addsl_M0_wRn(rd1); | |
1478 | break; | |
1479 | default: | |
1480 | return 1; | |
1481 | } | |
1482 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1483 | gen_op_iwmmxt_set_mup(); | |
1484 | gen_op_iwmmxt_set_cup(); | |
1485 | break; | |
1486 | case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */ | |
1487 | case 0x408: case 0x508: case 0x608: case 0x708: | |
1488 | case 0x808: case 0x908: case 0xa08: case 0xb08: | |
1489 | case 0xc08: case 0xd08: case 0xe08: case 0xf08: | |
1490 | wrd = (insn >> 12) & 0xf; | |
1491 | rd0 = (insn >> 16) & 0xf; | |
1492 | rd1 = (insn >> 0) & 0xf; | |
1493 | gen_op_iwmmxt_movq_M0_wRn(rd0); | |
1494 | if (!(insn & (1 << 20))) | |
1495 | return 1; | |
1496 | switch ((insn >> 22) & 3) { | |
1497 | case 0: | |
1498 | return 1; | |
1499 | case 1: | |
1500 | if (insn & (1 << 21)) | |
1501 | gen_op_iwmmxt_packsw_M0_wRn(rd1); | |
1502 | else | |
1503 | gen_op_iwmmxt_packuw_M0_wRn(rd1); | |
1504 | break; | |
1505 | case 2: | |
1506 | if (insn & (1 << 21)) | |
1507 | gen_op_iwmmxt_packsl_M0_wRn(rd1); | |
1508 | else | |
1509 | gen_op_iwmmxt_packul_M0_wRn(rd1); | |
1510 | break; | |
1511 | case 3: | |
1512 | if (insn & (1 << 21)) | |
1513 | gen_op_iwmmxt_packsq_M0_wRn(rd1); | |
1514 | else | |
1515 | gen_op_iwmmxt_packuq_M0_wRn(rd1); | |
1516 | break; | |
1517 | } | |
1518 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1519 | gen_op_iwmmxt_set_mup(); | |
1520 | gen_op_iwmmxt_set_cup(); | |
1521 | break; | |
1522 | case 0x201: case 0x203: case 0x205: case 0x207: | |
1523 | case 0x209: case 0x20b: case 0x20d: case 0x20f: | |
1524 | case 0x211: case 0x213: case 0x215: case 0x217: | |
1525 | case 0x219: case 0x21b: case 0x21d: case 0x21f: | |
1526 | wrd = (insn >> 5) & 0xf; | |
1527 | rd0 = (insn >> 12) & 0xf; | |
1528 | rd1 = (insn >> 0) & 0xf; | |
1529 | if (rd0 == 0xf || rd1 == 0xf) | |
1530 | return 1; | |
1531 | gen_op_iwmmxt_movq_M0_wRn(wrd); | |
1532 | switch ((insn >> 16) & 0xf) { | |
1533 | case 0x0: /* TMIA */ | |
1534 | gen_op_movl_TN_reg[0][rd0](); | |
1535 | gen_op_movl_TN_reg[1][rd1](); | |
1536 | gen_op_iwmmxt_muladdsl_M0_T0_T1(); | |
1537 | break; | |
1538 | case 0x8: /* TMIAPH */ | |
1539 | gen_op_movl_TN_reg[0][rd0](); | |
1540 | gen_op_movl_TN_reg[1][rd1](); | |
1541 | gen_op_iwmmxt_muladdsw_M0_T0_T1(); | |
1542 | break; | |
1543 | case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */ | |
1544 | gen_op_movl_TN_reg[1][rd0](); | |
1545 | if (insn & (1 << 16)) | |
1546 | gen_op_shrl_T1_im(16); | |
1547 | gen_op_movl_T0_T1(); | |
1548 | gen_op_movl_TN_reg[1][rd1](); | |
1549 | if (insn & (1 << 17)) | |
1550 | gen_op_shrl_T1_im(16); | |
1551 | gen_op_iwmmxt_muladdswl_M0_T0_T1(); | |
1552 | break; | |
1553 | default: | |
1554 | return 1; | |
1555 | } | |
1556 | gen_op_iwmmxt_movq_wRn_M0(wrd); | |
1557 | gen_op_iwmmxt_set_mup(); | |
1558 | break; | |
1559 | default: | |
1560 | return 1; | |
1561 | } | |
1562 | ||
1563 | return 0; | |
1564 | } | |
1565 | ||
1566 | /* Disassemble an XScale DSP instruction. Returns nonzero if an error occured | |
1567 | (ie. an undefined instruction). */ | |
1568 | static int disas_dsp_insn(CPUState *env, DisasContext *s, uint32_t insn) | |
1569 | { | |
1570 | int acc, rd0, rd1, rdhi, rdlo; | |
1571 | ||
1572 | if ((insn & 0x0ff00f10) == 0x0e200010) { | |
1573 | /* Multiply with Internal Accumulate Format */ | |
1574 | rd0 = (insn >> 12) & 0xf; | |
1575 | rd1 = insn & 0xf; | |
1576 | acc = (insn >> 5) & 7; | |
1577 | ||
1578 | if (acc != 0) | |
1579 | return 1; | |
1580 | ||
1581 | switch ((insn >> 16) & 0xf) { | |
1582 | case 0x0: /* MIA */ | |
1583 | gen_op_movl_TN_reg[0][rd0](); | |
1584 | gen_op_movl_TN_reg[1][rd1](); | |
1585 | gen_op_iwmmxt_muladdsl_M0_T0_T1(); | |
1586 | break; | |
1587 | case 0x8: /* MIAPH */ | |
1588 | gen_op_movl_TN_reg[0][rd0](); | |
1589 | gen_op_movl_TN_reg[1][rd1](); | |
1590 | gen_op_iwmmxt_muladdsw_M0_T0_T1(); | |
1591 | break; | |
1592 | case 0xc: /* MIABB */ | |
1593 | case 0xd: /* MIABT */ | |
1594 | case 0xe: /* MIATB */ | |
1595 | case 0xf: /* MIATT */ | |
1596 | gen_op_movl_TN_reg[1][rd0](); | |
1597 | if (insn & (1 << 16)) | |
1598 | gen_op_shrl_T1_im(16); | |
1599 | gen_op_movl_T0_T1(); | |
1600 | gen_op_movl_TN_reg[1][rd1](); | |
1601 | if (insn & (1 << 17)) | |
1602 | gen_op_shrl_T1_im(16); | |
1603 | gen_op_iwmmxt_muladdswl_M0_T0_T1(); | |
1604 | break; | |
1605 | default: | |
1606 | return 1; | |
1607 | } | |
1608 | ||
1609 | gen_op_iwmmxt_movq_wRn_M0(acc); | |
1610 | return 0; | |
1611 | } | |
1612 | ||
1613 | if ((insn & 0x0fe00ff8) == 0x0c400000) { | |
1614 | /* Internal Accumulator Access Format */ | |
1615 | rdhi = (insn >> 16) & 0xf; | |
1616 | rdlo = (insn >> 12) & 0xf; | |
1617 | acc = insn & 7; | |
1618 | ||
1619 | if (acc != 0) | |
1620 | return 1; | |
1621 | ||
1622 | if (insn & ARM_CP_RW_BIT) { /* MRA */ | |
1623 | gen_op_iwmmxt_movl_T0_T1_wRn(acc); | |
1624 | gen_op_movl_reg_TN[0][rdlo](); | |
1625 | gen_op_movl_T0_im((1 << (40 - 32)) - 1); | |
1626 | gen_op_andl_T0_T1(); | |
1627 | gen_op_movl_reg_TN[0][rdhi](); | |
1628 | } else { /* MAR */ | |
1629 | gen_op_movl_TN_reg[0][rdlo](); | |
1630 | gen_op_movl_TN_reg[1][rdhi](); | |
1631 | gen_op_iwmmxt_movl_wRn_T0_T1(acc); | |
1632 | } | |
1633 | return 0; | |
1634 | } | |
1635 | ||
1636 | return 1; | |
1637 | } | |
1638 | ||
c1713132 AZ |
1639 | /* Disassemble system coprocessor instruction. Return nonzero if |
1640 | instruction is not defined. */ | |
1641 | static int disas_cp_insn(CPUState *env, DisasContext *s, uint32_t insn) | |
1642 | { | |
1643 | uint32_t rd = (insn >> 12) & 0xf; | |
1644 | uint32_t cp = (insn >> 8) & 0xf; | |
1645 | if (IS_USER(s)) { | |
1646 | return 1; | |
1647 | } | |
1648 | ||
18c9b560 | 1649 | if (insn & ARM_CP_RW_BIT) { |
c1713132 AZ |
1650 | if (!env->cp[cp].cp_read) |
1651 | return 1; | |
1652 | gen_op_movl_T0_im((uint32_t) s->pc); | |
1653 | gen_op_movl_reg_TN[0][15](); | |
1654 | gen_op_movl_T0_cp(insn); | |
1655 | gen_movl_reg_T0(s, rd); | |
1656 | } else { | |
1657 | if (!env->cp[cp].cp_write) | |
1658 | return 1; | |
1659 | gen_op_movl_T0_im((uint32_t) s->pc); | |
1660 | gen_op_movl_reg_TN[0][15](); | |
1661 | gen_movl_T0_reg(s, rd); | |
1662 | gen_op_movl_cp_T0(insn); | |
1663 | } | |
1664 | return 0; | |
1665 | } | |
1666 | ||
9ee6e8bb PB |
1667 | static int cp15_user_ok(uint32_t insn) |
1668 | { | |
1669 | int cpn = (insn >> 16) & 0xf; | |
1670 | int cpm = insn & 0xf; | |
1671 | int op = ((insn >> 5) & 7) | ((insn >> 18) & 0x38); | |
1672 | ||
1673 | if (cpn == 13 && cpm == 0) { | |
1674 | /* TLS register. */ | |
1675 | if (op == 2 || (op == 3 && (insn & ARM_CP_RW_BIT))) | |
1676 | return 1; | |
1677 | } | |
1678 | if (cpn == 7) { | |
1679 | /* ISB, DSB, DMB. */ | |
1680 | if ((cpm == 5 && op == 4) | |
1681 | || (cpm == 10 && (op == 4 || op == 5))) | |
1682 | return 1; | |
1683 | } | |
1684 | return 0; | |
1685 | } | |
1686 | ||
b5ff1b31 FB |
1687 | /* Disassemble system coprocessor (cp15) instruction. Return nonzero if |
1688 | instruction is not defined. */ | |
a90b7318 | 1689 | static int disas_cp15_insn(CPUState *env, DisasContext *s, uint32_t insn) |
b5ff1b31 FB |
1690 | { |
1691 | uint32_t rd; | |
1692 | ||
9ee6e8bb PB |
1693 | /* M profile cores use memory mapped registers instead of cp15. */ |
1694 | if (arm_feature(env, ARM_FEATURE_M)) | |
1695 | return 1; | |
1696 | ||
1697 | if ((insn & (1 << 25)) == 0) { | |
1698 | if (insn & (1 << 20)) { | |
1699 | /* mrrc */ | |
1700 | return 1; | |
1701 | } | |
1702 | /* mcrr. Used for block cache operations, so implement as no-op. */ | |
1703 | return 0; | |
1704 | } | |
1705 | if ((insn & (1 << 4)) == 0) { | |
1706 | /* cdp */ | |
1707 | return 1; | |
1708 | } | |
1709 | if (IS_USER(s) && !cp15_user_ok(insn)) { | |
b5ff1b31 FB |
1710 | return 1; |
1711 | } | |
9332f9da FB |
1712 | if ((insn & 0x0fff0fff) == 0x0e070f90 |
1713 | || (insn & 0x0fff0fff) == 0x0e070f58) { | |
1714 | /* Wait for interrupt. */ | |
1715 | gen_op_movl_T0_im((long)s->pc); | |
1716 | gen_op_movl_reg_TN[0][15](); | |
9ee6e8bb | 1717 | s->is_jmp = DISAS_WFI; |
9332f9da FB |
1718 | return 0; |
1719 | } | |
b5ff1b31 | 1720 | rd = (insn >> 12) & 0xf; |
18c9b560 | 1721 | if (insn & ARM_CP_RW_BIT) { |
b5ff1b31 FB |
1722 | gen_op_movl_T0_cp15(insn); |
1723 | /* If the destination register is r15 then sets condition codes. */ | |
1724 | if (rd != 15) | |
1725 | gen_movl_reg_T0(s, rd); | |
1726 | } else { | |
1727 | gen_movl_T0_reg(s, rd); | |
1728 | gen_op_movl_cp15_T0(insn); | |
a90b7318 AZ |
1729 | /* Normally we would always end the TB here, but Linux |
1730 | * arch/arm/mach-pxa/sleep.S expects two instructions following | |
1731 | * an MMU enable to execute from cache. Imitate this behaviour. */ | |
1732 | if (!arm_feature(env, ARM_FEATURE_XSCALE) || | |
1733 | (insn & 0x0fff0fff) != 0x0e010f10) | |
1734 | gen_lookup_tb(s); | |
b5ff1b31 | 1735 | } |
b5ff1b31 FB |
1736 | return 0; |
1737 | } | |
1738 | ||
9ee6e8bb PB |
1739 | #define VFP_REG_SHR(x, n) (((n) > 0) ? (x) >> (n) : (x) << -(n)) |
1740 | #define VFP_SREG(insn, bigbit, smallbit) \ | |
1741 | ((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1)) | |
1742 | #define VFP_DREG(reg, insn, bigbit, smallbit) do { \ | |
1743 | if (arm_feature(env, ARM_FEATURE_VFP3)) { \ | |
1744 | reg = (((insn) >> (bigbit)) & 0x0f) \ | |
1745 | | (((insn) >> ((smallbit) - 4)) & 0x10); \ | |
1746 | } else { \ | |
1747 | if (insn & (1 << (smallbit))) \ | |
1748 | return 1; \ | |
1749 | reg = ((insn) >> (bigbit)) & 0x0f; \ | |
1750 | }} while (0) | |
1751 | ||
1752 | #define VFP_SREG_D(insn) VFP_SREG(insn, 12, 22) | |
1753 | #define VFP_DREG_D(reg, insn) VFP_DREG(reg, insn, 12, 22) | |
1754 | #define VFP_SREG_N(insn) VFP_SREG(insn, 16, 7) | |
1755 | #define VFP_DREG_N(reg, insn) VFP_DREG(reg, insn, 16, 7) | |
1756 | #define VFP_SREG_M(insn) VFP_SREG(insn, 0, 5) | |
1757 | #define VFP_DREG_M(reg, insn) VFP_DREG(reg, insn, 0, 5) | |
1758 | ||
1759 | static inline int | |
1760 | vfp_enabled(CPUState * env) | |
1761 | { | |
1762 | return ((env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) != 0); | |
1763 | } | |
1764 | ||
b7bcbe95 FB |
1765 | /* Disassemble a VFP instruction. Returns nonzero if an error occured |
1766 | (ie. an undefined instruction). */ | |
1767 | static int disas_vfp_insn(CPUState * env, DisasContext *s, uint32_t insn) | |
1768 | { | |
1769 | uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask; | |
1770 | int dp, veclen; | |
1771 | ||
40f137e1 PB |
1772 | if (!arm_feature(env, ARM_FEATURE_VFP)) |
1773 | return 1; | |
1774 | ||
9ee6e8bb PB |
1775 | if (!vfp_enabled(env)) { |
1776 | /* VFP disabled. Only allow fmxr/fmrx to/from some control regs. */ | |
40f137e1 PB |
1777 | if ((insn & 0x0fe00fff) != 0x0ee00a10) |
1778 | return 1; | |
1779 | rn = (insn >> 16) & 0xf; | |
9ee6e8bb PB |
1780 | if (rn != ARM_VFP_FPSID && rn != ARM_VFP_FPEXC |
1781 | && rn != ARM_VFP_MVFR1 && rn != ARM_VFP_MVFR0) | |
40f137e1 PB |
1782 | return 1; |
1783 | } | |
b7bcbe95 FB |
1784 | dp = ((insn & 0xf00) == 0xb00); |
1785 | switch ((insn >> 24) & 0xf) { | |
1786 | case 0xe: | |
1787 | if (insn & (1 << 4)) { | |
1788 | /* single register transfer */ | |
b7bcbe95 FB |
1789 | rd = (insn >> 12) & 0xf; |
1790 | if (dp) { | |
9ee6e8bb PB |
1791 | int size; |
1792 | int pass; | |
1793 | ||
1794 | VFP_DREG_N(rn, insn); | |
1795 | if (insn & 0xf) | |
b7bcbe95 | 1796 | return 1; |
9ee6e8bb PB |
1797 | if (insn & 0x00c00060 |
1798 | && !arm_feature(env, ARM_FEATURE_NEON)) | |
1799 | return 1; | |
1800 | ||
1801 | pass = (insn >> 21) & 1; | |
1802 | if (insn & (1 << 22)) { | |
1803 | size = 0; | |
1804 | offset = ((insn >> 5) & 3) * 8; | |
1805 | } else if (insn & (1 << 5)) { | |
1806 | size = 1; | |
1807 | offset = (insn & (1 << 6)) ? 16 : 0; | |
1808 | } else { | |
1809 | size = 2; | |
1810 | offset = 0; | |
1811 | } | |
18c9b560 | 1812 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 | 1813 | /* vfp->arm */ |
9ee6e8bb PB |
1814 | switch (size) { |
1815 | case 0: | |
1816 | NEON_GET_REG(T1, rn, pass); | |
1817 | if (offset) | |
1818 | gen_op_shrl_T1_im(offset); | |
1819 | if (insn & (1 << 23)) | |
1820 | gen_op_uxtb_T1(); | |
1821 | else | |
1822 | gen_op_sxtb_T1(); | |
1823 | break; | |
1824 | case 1: | |
1825 | NEON_GET_REG(T1, rn, pass); | |
1826 | if (insn & (1 << 23)) { | |
1827 | if (offset) { | |
1828 | gen_op_shrl_T1_im(16); | |
1829 | } else { | |
1830 | gen_op_uxth_T1(); | |
1831 | } | |
1832 | } else { | |
1833 | if (offset) { | |
1834 | gen_op_sarl_T1_im(16); | |
1835 | } else { | |
1836 | gen_op_sxth_T1(); | |
1837 | } | |
1838 | } | |
1839 | break; | |
1840 | case 2: | |
1841 | NEON_GET_REG(T1, rn, pass); | |
1842 | break; | |
1843 | } | |
1844 | gen_movl_reg_T1(s, rd); | |
b7bcbe95 FB |
1845 | } else { |
1846 | /* arm->vfp */ | |
9ee6e8bb PB |
1847 | gen_movl_T0_reg(s, rd); |
1848 | if (insn & (1 << 23)) { | |
1849 | /* VDUP */ | |
1850 | if (size == 0) { | |
1851 | gen_op_neon_dup_u8(0); | |
1852 | } else if (size == 1) { | |
1853 | gen_op_neon_dup_low16(); | |
1854 | } | |
1855 | NEON_SET_REG(T0, rn, 0); | |
1856 | NEON_SET_REG(T0, rn, 1); | |
1857 | } else { | |
1858 | /* VMOV */ | |
1859 | switch (size) { | |
1860 | case 0: | |
1861 | NEON_GET_REG(T2, rn, pass); | |
1862 | gen_op_movl_T1_im(0xff); | |
1863 | gen_op_andl_T0_T1(); | |
1864 | gen_op_neon_insert_elt(offset, ~(0xff << offset)); | |
1865 | NEON_SET_REG(T2, rn, pass); | |
1866 | break; | |
1867 | case 1: | |
1868 | NEON_GET_REG(T2, rn, pass); | |
1869 | gen_op_movl_T1_im(0xffff); | |
1870 | gen_op_andl_T0_T1(); | |
1871 | bank_mask = offset ? 0xffff : 0xffff0000; | |
1872 | gen_op_neon_insert_elt(offset, bank_mask); | |
1873 | NEON_SET_REG(T2, rn, pass); | |
1874 | break; | |
1875 | case 2: | |
1876 | NEON_SET_REG(T0, rn, pass); | |
1877 | break; | |
1878 | } | |
1879 | } | |
b7bcbe95 | 1880 | } |
9ee6e8bb PB |
1881 | } else { /* !dp */ |
1882 | if ((insn & 0x6f) != 0x00) | |
1883 | return 1; | |
1884 | rn = VFP_SREG_N(insn); | |
18c9b560 | 1885 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 FB |
1886 | /* vfp->arm */ |
1887 | if (insn & (1 << 21)) { | |
1888 | /* system register */ | |
40f137e1 | 1889 | rn >>= 1; |
9ee6e8bb | 1890 | |
b7bcbe95 | 1891 | switch (rn) { |
40f137e1 | 1892 | case ARM_VFP_FPSID: |
9ee6e8bb PB |
1893 | /* VFP2 allows access for FSID from userspace. |
1894 | VFP3 restricts all id registers to privileged | |
1895 | accesses. */ | |
1896 | if (IS_USER(s) | |
1897 | && arm_feature(env, ARM_FEATURE_VFP3)) | |
1898 | return 1; | |
1899 | gen_op_vfp_movl_T0_xreg(rn); | |
1900 | break; | |
40f137e1 | 1901 | case ARM_VFP_FPEXC: |
9ee6e8bb PB |
1902 | if (IS_USER(s)) |
1903 | return 1; | |
1904 | gen_op_vfp_movl_T0_xreg(rn); | |
1905 | break; | |
40f137e1 PB |
1906 | case ARM_VFP_FPINST: |
1907 | case ARM_VFP_FPINST2: | |
9ee6e8bb PB |
1908 | /* Not present in VFP3. */ |
1909 | if (IS_USER(s) | |
1910 | || arm_feature(env, ARM_FEATURE_VFP3)) | |
1911 | return 1; | |
40f137e1 | 1912 | gen_op_vfp_movl_T0_xreg(rn); |
b7bcbe95 | 1913 | break; |
40f137e1 | 1914 | case ARM_VFP_FPSCR: |
b7bcbe95 FB |
1915 | if (rd == 15) |
1916 | gen_op_vfp_movl_T0_fpscr_flags(); | |
1917 | else | |
1918 | gen_op_vfp_movl_T0_fpscr(); | |
1919 | break; | |
9ee6e8bb PB |
1920 | case ARM_VFP_MVFR0: |
1921 | case ARM_VFP_MVFR1: | |
1922 | if (IS_USER(s) | |
1923 | || !arm_feature(env, ARM_FEATURE_VFP3)) | |
1924 | return 1; | |
1925 | gen_op_vfp_movl_T0_xreg(rn); | |
1926 | break; | |
b7bcbe95 FB |
1927 | default: |
1928 | return 1; | |
1929 | } | |
1930 | } else { | |
1931 | gen_mov_F0_vreg(0, rn); | |
1932 | gen_op_vfp_mrs(); | |
1933 | } | |
1934 | if (rd == 15) { | |
b5ff1b31 FB |
1935 | /* Set the 4 flag bits in the CPSR. */ |
1936 | gen_op_movl_cpsr_T0(0xf0000000); | |
b7bcbe95 FB |
1937 | } else |
1938 | gen_movl_reg_T0(s, rd); | |
1939 | } else { | |
1940 | /* arm->vfp */ | |
1941 | gen_movl_T0_reg(s, rd); | |
1942 | if (insn & (1 << 21)) { | |
40f137e1 | 1943 | rn >>= 1; |
b7bcbe95 FB |
1944 | /* system register */ |
1945 | switch (rn) { | |
40f137e1 | 1946 | case ARM_VFP_FPSID: |
9ee6e8bb PB |
1947 | case ARM_VFP_MVFR0: |
1948 | case ARM_VFP_MVFR1: | |
b7bcbe95 FB |
1949 | /* Writes are ignored. */ |
1950 | break; | |
40f137e1 | 1951 | case ARM_VFP_FPSCR: |
b7bcbe95 | 1952 | gen_op_vfp_movl_fpscr_T0(); |
b5ff1b31 | 1953 | gen_lookup_tb(s); |
b7bcbe95 | 1954 | break; |
40f137e1 | 1955 | case ARM_VFP_FPEXC: |
9ee6e8bb PB |
1956 | if (IS_USER(s)) |
1957 | return 1; | |
40f137e1 PB |
1958 | gen_op_vfp_movl_xreg_T0(rn); |
1959 | gen_lookup_tb(s); | |
1960 | break; | |
1961 | case ARM_VFP_FPINST: | |
1962 | case ARM_VFP_FPINST2: | |
1963 | gen_op_vfp_movl_xreg_T0(rn); | |
1964 | break; | |
b7bcbe95 FB |
1965 | default: |
1966 | return 1; | |
1967 | } | |
1968 | } else { | |
1969 | gen_op_vfp_msr(); | |
1970 | gen_mov_vreg_F0(0, rn); | |
1971 | } | |
1972 | } | |
1973 | } | |
1974 | } else { | |
1975 | /* data processing */ | |
1976 | /* The opcode is in bits 23, 21, 20 and 6. */ | |
1977 | op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1); | |
1978 | if (dp) { | |
1979 | if (op == 15) { | |
1980 | /* rn is opcode */ | |
1981 | rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1); | |
1982 | } else { | |
1983 | /* rn is register number */ | |
9ee6e8bb | 1984 | VFP_DREG_N(rn, insn); |
b7bcbe95 FB |
1985 | } |
1986 | ||
1987 | if (op == 15 && (rn == 15 || rn > 17)) { | |
1988 | /* Integer or single precision destination. */ | |
9ee6e8bb | 1989 | rd = VFP_SREG_D(insn); |
b7bcbe95 | 1990 | } else { |
9ee6e8bb | 1991 | VFP_DREG_D(rd, insn); |
b7bcbe95 FB |
1992 | } |
1993 | ||
1994 | if (op == 15 && (rn == 16 || rn == 17)) { | |
1995 | /* Integer source. */ | |
1996 | rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1); | |
1997 | } else { | |
9ee6e8bb | 1998 | VFP_DREG_M(rm, insn); |
b7bcbe95 FB |
1999 | } |
2000 | } else { | |
9ee6e8bb | 2001 | rn = VFP_SREG_N(insn); |
b7bcbe95 FB |
2002 | if (op == 15 && rn == 15) { |
2003 | /* Double precision destination. */ | |
9ee6e8bb PB |
2004 | VFP_DREG_D(rd, insn); |
2005 | } else { | |
2006 | rd = VFP_SREG_D(insn); | |
2007 | } | |
2008 | rm = VFP_SREG_M(insn); | |
b7bcbe95 FB |
2009 | } |
2010 | ||
2011 | veclen = env->vfp.vec_len; | |
2012 | if (op == 15 && rn > 3) | |
2013 | veclen = 0; | |
2014 | ||
2015 | /* Shut up compiler warnings. */ | |
2016 | delta_m = 0; | |
2017 | delta_d = 0; | |
2018 | bank_mask = 0; | |
3b46e624 | 2019 | |
b7bcbe95 FB |
2020 | if (veclen > 0) { |
2021 | if (dp) | |
2022 | bank_mask = 0xc; | |
2023 | else | |
2024 | bank_mask = 0x18; | |
2025 | ||
2026 | /* Figure out what type of vector operation this is. */ | |
2027 | if ((rd & bank_mask) == 0) { | |
2028 | /* scalar */ | |
2029 | veclen = 0; | |
2030 | } else { | |
2031 | if (dp) | |
2032 | delta_d = (env->vfp.vec_stride >> 1) + 1; | |
2033 | else | |
2034 | delta_d = env->vfp.vec_stride + 1; | |
2035 | ||
2036 | if ((rm & bank_mask) == 0) { | |
2037 | /* mixed scalar/vector */ | |
2038 | delta_m = 0; | |
2039 | } else { | |
2040 | /* vector */ | |
2041 | delta_m = delta_d; | |
2042 | } | |
2043 | } | |
2044 | } | |
2045 | ||
2046 | /* Load the initial operands. */ | |
2047 | if (op == 15) { | |
2048 | switch (rn) { | |
2049 | case 16: | |
2050 | case 17: | |
2051 | /* Integer source */ | |
2052 | gen_mov_F0_vreg(0, rm); | |
2053 | break; | |
2054 | case 8: | |
2055 | case 9: | |
2056 | /* Compare */ | |
2057 | gen_mov_F0_vreg(dp, rd); | |
2058 | gen_mov_F1_vreg(dp, rm); | |
2059 | break; | |
2060 | case 10: | |
2061 | case 11: | |
2062 | /* Compare with zero */ | |
2063 | gen_mov_F0_vreg(dp, rd); | |
2064 | gen_vfp_F1_ld0(dp); | |
2065 | break; | |
9ee6e8bb PB |
2066 | case 20: |
2067 | case 21: | |
2068 | case 22: | |
2069 | case 23: | |
2070 | /* Source and destination the same. */ | |
2071 | gen_mov_F0_vreg(dp, rd); | |
2072 | break; | |
b7bcbe95 FB |
2073 | default: |
2074 | /* One source operand. */ | |
2075 | gen_mov_F0_vreg(dp, rm); | |
9ee6e8bb | 2076 | break; |
b7bcbe95 FB |
2077 | } |
2078 | } else { | |
2079 | /* Two source operands. */ | |
2080 | gen_mov_F0_vreg(dp, rn); | |
2081 | gen_mov_F1_vreg(dp, rm); | |
2082 | } | |
2083 | ||
2084 | for (;;) { | |
2085 | /* Perform the calculation. */ | |
2086 | switch (op) { | |
2087 | case 0: /* mac: fd + (fn * fm) */ | |
2088 | gen_vfp_mul(dp); | |
2089 | gen_mov_F1_vreg(dp, rd); | |
2090 | gen_vfp_add(dp); | |
2091 | break; | |
2092 | case 1: /* nmac: fd - (fn * fm) */ | |
2093 | gen_vfp_mul(dp); | |
2094 | gen_vfp_neg(dp); | |
2095 | gen_mov_F1_vreg(dp, rd); | |
2096 | gen_vfp_add(dp); | |
2097 | break; | |
2098 | case 2: /* msc: -fd + (fn * fm) */ | |
2099 | gen_vfp_mul(dp); | |
2100 | gen_mov_F1_vreg(dp, rd); | |
2101 | gen_vfp_sub(dp); | |
2102 | break; | |
2103 | case 3: /* nmsc: -fd - (fn * fm) */ | |
2104 | gen_vfp_mul(dp); | |
2105 | gen_mov_F1_vreg(dp, rd); | |
2106 | gen_vfp_add(dp); | |
2107 | gen_vfp_neg(dp); | |
2108 | break; | |
2109 | case 4: /* mul: fn * fm */ | |
2110 | gen_vfp_mul(dp); | |
2111 | break; | |
2112 | case 5: /* nmul: -(fn * fm) */ | |
2113 | gen_vfp_mul(dp); | |
2114 | gen_vfp_neg(dp); | |
2115 | break; | |
2116 | case 6: /* add: fn + fm */ | |
2117 | gen_vfp_add(dp); | |
2118 | break; | |
2119 | case 7: /* sub: fn - fm */ | |
2120 | gen_vfp_sub(dp); | |
2121 | break; | |
2122 | case 8: /* div: fn / fm */ | |
2123 | gen_vfp_div(dp); | |
2124 | break; | |
9ee6e8bb PB |
2125 | case 14: /* fconst */ |
2126 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2127 | return 1; | |
2128 | ||
2129 | n = (insn << 12) & 0x80000000; | |
2130 | i = ((insn >> 12) & 0x70) | (insn & 0xf); | |
2131 | if (dp) { | |
2132 | if (i & 0x40) | |
2133 | i |= 0x3f80; | |
2134 | else | |
2135 | i |= 0x4000; | |
2136 | n |= i << 16; | |
2137 | } else { | |
2138 | if (i & 0x40) | |
2139 | i |= 0x780; | |
2140 | else | |
2141 | i |= 0x800; | |
2142 | n |= i << 19; | |
2143 | } | |
2144 | gen_vfp_fconst(dp, n); | |
2145 | break; | |
b7bcbe95 FB |
2146 | case 15: /* extension space */ |
2147 | switch (rn) { | |
2148 | case 0: /* cpy */ | |
2149 | /* no-op */ | |
2150 | break; | |
2151 | case 1: /* abs */ | |
2152 | gen_vfp_abs(dp); | |
2153 | break; | |
2154 | case 2: /* neg */ | |
2155 | gen_vfp_neg(dp); | |
2156 | break; | |
2157 | case 3: /* sqrt */ | |
2158 | gen_vfp_sqrt(dp); | |
2159 | break; | |
2160 | case 8: /* cmp */ | |
2161 | gen_vfp_cmp(dp); | |
2162 | break; | |
2163 | case 9: /* cmpe */ | |
2164 | gen_vfp_cmpe(dp); | |
2165 | break; | |
2166 | case 10: /* cmpz */ | |
2167 | gen_vfp_cmp(dp); | |
2168 | break; | |
2169 | case 11: /* cmpez */ | |
2170 | gen_vfp_F1_ld0(dp); | |
2171 | gen_vfp_cmpe(dp); | |
2172 | break; | |
2173 | case 15: /* single<->double conversion */ | |
2174 | if (dp) | |
2175 | gen_op_vfp_fcvtsd(); | |
2176 | else | |
2177 | gen_op_vfp_fcvtds(); | |
2178 | break; | |
2179 | case 16: /* fuito */ | |
2180 | gen_vfp_uito(dp); | |
2181 | break; | |
2182 | case 17: /* fsito */ | |
2183 | gen_vfp_sito(dp); | |
2184 | break; | |
9ee6e8bb PB |
2185 | case 20: /* fshto */ |
2186 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2187 | return 1; | |
2188 | gen_vfp_shto(dp, rm); | |
2189 | break; | |
2190 | case 21: /* fslto */ | |
2191 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2192 | return 1; | |
2193 | gen_vfp_slto(dp, rm); | |
2194 | break; | |
2195 | case 22: /* fuhto */ | |
2196 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2197 | return 1; | |
2198 | gen_vfp_uhto(dp, rm); | |
2199 | break; | |
2200 | case 23: /* fulto */ | |
2201 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2202 | return 1; | |
2203 | gen_vfp_ulto(dp, rm); | |
2204 | break; | |
b7bcbe95 FB |
2205 | case 24: /* ftoui */ |
2206 | gen_vfp_toui(dp); | |
2207 | break; | |
2208 | case 25: /* ftouiz */ | |
2209 | gen_vfp_touiz(dp); | |
2210 | break; | |
2211 | case 26: /* ftosi */ | |
2212 | gen_vfp_tosi(dp); | |
2213 | break; | |
2214 | case 27: /* ftosiz */ | |
2215 | gen_vfp_tosiz(dp); | |
2216 | break; | |
9ee6e8bb PB |
2217 | case 28: /* ftosh */ |
2218 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2219 | return 1; | |
2220 | gen_vfp_tosh(dp, rm); | |
2221 | break; | |
2222 | case 29: /* ftosl */ | |
2223 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2224 | return 1; | |
2225 | gen_vfp_tosl(dp, rm); | |
2226 | break; | |
2227 | case 30: /* ftouh */ | |
2228 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2229 | return 1; | |
2230 | gen_vfp_touh(dp, rm); | |
2231 | break; | |
2232 | case 31: /* ftoul */ | |
2233 | if (!arm_feature(env, ARM_FEATURE_VFP3)) | |
2234 | return 1; | |
2235 | gen_vfp_toul(dp, rm); | |
2236 | break; | |
b7bcbe95 FB |
2237 | default: /* undefined */ |
2238 | printf ("rn:%d\n", rn); | |
2239 | return 1; | |
2240 | } | |
2241 | break; | |
2242 | default: /* undefined */ | |
2243 | printf ("op:%d\n", op); | |
2244 | return 1; | |
2245 | } | |
2246 | ||
2247 | /* Write back the result. */ | |
2248 | if (op == 15 && (rn >= 8 && rn <= 11)) | |
2249 | ; /* Comparison, do nothing. */ | |
2250 | else if (op == 15 && rn > 17) | |
2251 | /* Integer result. */ | |
2252 | gen_mov_vreg_F0(0, rd); | |
2253 | else if (op == 15 && rn == 15) | |
2254 | /* conversion */ | |
2255 | gen_mov_vreg_F0(!dp, rd); | |
2256 | else | |
2257 | gen_mov_vreg_F0(dp, rd); | |
2258 | ||
2259 | /* break out of the loop if we have finished */ | |
2260 | if (veclen == 0) | |
2261 | break; | |
2262 | ||
2263 | if (op == 15 && delta_m == 0) { | |
2264 | /* single source one-many */ | |
2265 | while (veclen--) { | |
2266 | rd = ((rd + delta_d) & (bank_mask - 1)) | |
2267 | | (rd & bank_mask); | |
2268 | gen_mov_vreg_F0(dp, rd); | |
2269 | } | |
2270 | break; | |
2271 | } | |
2272 | /* Setup the next operands. */ | |
2273 | veclen--; | |
2274 | rd = ((rd + delta_d) & (bank_mask - 1)) | |
2275 | | (rd & bank_mask); | |
2276 | ||
2277 | if (op == 15) { | |
2278 | /* One source operand. */ | |
2279 | rm = ((rm + delta_m) & (bank_mask - 1)) | |
2280 | | (rm & bank_mask); | |
2281 | gen_mov_F0_vreg(dp, rm); | |
2282 | } else { | |
2283 | /* Two source operands. */ | |
2284 | rn = ((rn + delta_d) & (bank_mask - 1)) | |
2285 | | (rn & bank_mask); | |
2286 | gen_mov_F0_vreg(dp, rn); | |
2287 | if (delta_m) { | |
2288 | rm = ((rm + delta_m) & (bank_mask - 1)) | |
2289 | | (rm & bank_mask); | |
2290 | gen_mov_F1_vreg(dp, rm); | |
2291 | } | |
2292 | } | |
2293 | } | |
2294 | } | |
2295 | break; | |
2296 | case 0xc: | |
2297 | case 0xd: | |
9ee6e8bb | 2298 | if (dp && (insn & 0x03e00000) == 0x00400000) { |
b7bcbe95 FB |
2299 | /* two-register transfer */ |
2300 | rn = (insn >> 16) & 0xf; | |
2301 | rd = (insn >> 12) & 0xf; | |
2302 | if (dp) { | |
9ee6e8bb PB |
2303 | VFP_DREG_M(rm, insn); |
2304 | } else { | |
2305 | rm = VFP_SREG_M(insn); | |
2306 | } | |
b7bcbe95 | 2307 | |
18c9b560 | 2308 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 FB |
2309 | /* vfp->arm */ |
2310 | if (dp) { | |
2311 | gen_mov_F0_vreg(1, rm); | |
2312 | gen_op_vfp_mrrd(); | |
2313 | gen_movl_reg_T0(s, rd); | |
2314 | gen_movl_reg_T1(s, rn); | |
2315 | } else { | |
2316 | gen_mov_F0_vreg(0, rm); | |
2317 | gen_op_vfp_mrs(); | |
2318 | gen_movl_reg_T0(s, rn); | |
2319 | gen_mov_F0_vreg(0, rm + 1); | |
2320 | gen_op_vfp_mrs(); | |
2321 | gen_movl_reg_T0(s, rd); | |
2322 | } | |
2323 | } else { | |
2324 | /* arm->vfp */ | |
2325 | if (dp) { | |
2326 | gen_movl_T0_reg(s, rd); | |
2327 | gen_movl_T1_reg(s, rn); | |
2328 | gen_op_vfp_mdrr(); | |
2329 | gen_mov_vreg_F0(1, rm); | |
2330 | } else { | |
2331 | gen_movl_T0_reg(s, rn); | |
2332 | gen_op_vfp_msr(); | |
2333 | gen_mov_vreg_F0(0, rm); | |
2334 | gen_movl_T0_reg(s, rd); | |
2335 | gen_op_vfp_msr(); | |
2336 | gen_mov_vreg_F0(0, rm + 1); | |
2337 | } | |
2338 | } | |
2339 | } else { | |
2340 | /* Load/store */ | |
2341 | rn = (insn >> 16) & 0xf; | |
2342 | if (dp) | |
9ee6e8bb | 2343 | VFP_DREG_D(rd, insn); |
b7bcbe95 | 2344 | else |
9ee6e8bb PB |
2345 | rd = VFP_SREG_D(insn); |
2346 | if (s->thumb && rn == 15) { | |
2347 | gen_op_movl_T1_im(s->pc & ~2); | |
2348 | } else { | |
2349 | gen_movl_T1_reg(s, rn); | |
2350 | } | |
b7bcbe95 FB |
2351 | if ((insn & 0x01200000) == 0x01000000) { |
2352 | /* Single load/store */ | |
2353 | offset = (insn & 0xff) << 2; | |
2354 | if ((insn & (1 << 23)) == 0) | |
2355 | offset = -offset; | |
2356 | gen_op_addl_T1_im(offset); | |
2357 | if (insn & (1 << 20)) { | |
b5ff1b31 | 2358 | gen_vfp_ld(s, dp); |
b7bcbe95 FB |
2359 | gen_mov_vreg_F0(dp, rd); |
2360 | } else { | |
2361 | gen_mov_F0_vreg(dp, rd); | |
b5ff1b31 | 2362 | gen_vfp_st(s, dp); |
b7bcbe95 FB |
2363 | } |
2364 | } else { | |
2365 | /* load/store multiple */ | |
2366 | if (dp) | |
2367 | n = (insn >> 1) & 0x7f; | |
2368 | else | |
2369 | n = insn & 0xff; | |
2370 | ||
2371 | if (insn & (1 << 24)) /* pre-decrement */ | |
2372 | gen_op_addl_T1_im(-((insn & 0xff) << 2)); | |
2373 | ||
2374 | if (dp) | |
2375 | offset = 8; | |
2376 | else | |
2377 | offset = 4; | |
2378 | for (i = 0; i < n; i++) { | |
18c9b560 | 2379 | if (insn & ARM_CP_RW_BIT) { |
b7bcbe95 | 2380 | /* load */ |
b5ff1b31 | 2381 | gen_vfp_ld(s, dp); |
b7bcbe95 FB |
2382 | gen_mov_vreg_F0(dp, rd + i); |
2383 | } else { | |
2384 | /* store */ | |
2385 | gen_mov_F0_vreg(dp, rd + i); | |
b5ff1b31 | 2386 | gen_vfp_st(s, dp); |
b7bcbe95 FB |
2387 | } |
2388 | gen_op_addl_T1_im(offset); | |
2389 | } | |
2390 | if (insn & (1 << 21)) { | |
2391 | /* writeback */ | |
2392 | if (insn & (1 << 24)) | |
2393 | offset = -offset * n; | |
2394 | else if (dp && (insn & 1)) | |
2395 | offset = 4; | |
2396 | else | |
2397 | offset = 0; | |
2398 | ||
2399 | if (offset != 0) | |
2400 | gen_op_addl_T1_im(offset); | |
2401 | gen_movl_reg_T1(s, rn); | |
2402 | } | |
2403 | } | |
2404 | } | |
2405 | break; | |
2406 | default: | |
2407 | /* Should never happen. */ | |
2408 | return 1; | |
2409 | } | |
2410 | return 0; | |
2411 | } | |
2412 | ||
6e256c93 | 2413 | static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest) |
c53be334 | 2414 | { |
6e256c93 FB |
2415 | TranslationBlock *tb; |
2416 | ||
2417 | tb = s->tb; | |
2418 | if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) { | |
57fec1fe | 2419 | tcg_gen_goto_tb(n); |
6e256c93 FB |
2420 | gen_op_movl_T0_im(dest); |
2421 | gen_op_movl_r15_T0(); | |
57fec1fe | 2422 | tcg_gen_exit_tb((long)tb + n); |
6e256c93 FB |
2423 | } else { |
2424 | gen_op_movl_T0_im(dest); | |
2425 | gen_op_movl_r15_T0(); | |
57fec1fe | 2426 | tcg_gen_exit_tb(0); |
6e256c93 | 2427 | } |
c53be334 FB |
2428 | } |
2429 | ||
8aaca4c0 FB |
2430 | static inline void gen_jmp (DisasContext *s, uint32_t dest) |
2431 | { | |
2432 | if (__builtin_expect(s->singlestep_enabled, 0)) { | |
2433 | /* An indirect jump so that we still trigger the debug exception. */ | |
5899f386 FB |
2434 | if (s->thumb) |
2435 | dest |= 1; | |
8aaca4c0 FB |
2436 | gen_op_movl_T0_im(dest); |
2437 | gen_bx(s); | |
2438 | } else { | |
6e256c93 | 2439 | gen_goto_tb(s, 0, dest); |
8aaca4c0 FB |
2440 | s->is_jmp = DISAS_TB_JUMP; |
2441 | } | |
2442 | } | |
2443 | ||
b5ff1b31 FB |
2444 | static inline void gen_mulxy(int x, int y) |
2445 | { | |
ee097184 | 2446 | if (x) |
b5ff1b31 FB |
2447 | gen_op_sarl_T0_im(16); |
2448 | else | |
2449 | gen_op_sxth_T0(); | |
ee097184 | 2450 | if (y) |
b5ff1b31 FB |
2451 | gen_op_sarl_T1_im(16); |
2452 | else | |
2453 | gen_op_sxth_T1(); | |
2454 | gen_op_mul_T0_T1(); | |
2455 | } | |
2456 | ||
2457 | /* Return the mask of PSR bits set by a MSR instruction. */ | |
9ee6e8bb | 2458 | static uint32_t msr_mask(CPUState *env, DisasContext *s, int flags, int spsr) { |
b5ff1b31 FB |
2459 | uint32_t mask; |
2460 | ||
2461 | mask = 0; | |
2462 | if (flags & (1 << 0)) | |
2463 | mask |= 0xff; | |
2464 | if (flags & (1 << 1)) | |
2465 | mask |= 0xff00; | |
2466 | if (flags & (1 << 2)) | |
2467 | mask |= 0xff0000; | |
2468 | if (flags & (1 << 3)) | |
2469 | mask |= 0xff000000; | |
9ee6e8bb | 2470 | |
2ae23e75 | 2471 | /* Mask out undefined bits. */ |
9ee6e8bb PB |
2472 | mask &= ~CPSR_RESERVED; |
2473 | if (!arm_feature(env, ARM_FEATURE_V6)) | |
e160c51c | 2474 | mask &= ~(CPSR_E | CPSR_GE); |
9ee6e8bb | 2475 | if (!arm_feature(env, ARM_FEATURE_THUMB2)) |
e160c51c | 2476 | mask &= ~CPSR_IT; |
9ee6e8bb | 2477 | /* Mask out execution state bits. */ |
2ae23e75 | 2478 | if (!spsr) |
e160c51c | 2479 | mask &= ~CPSR_EXEC; |
b5ff1b31 FB |
2480 | /* Mask out privileged bits. */ |
2481 | if (IS_USER(s)) | |
9ee6e8bb | 2482 | mask &= CPSR_USER; |
b5ff1b31 FB |
2483 | return mask; |
2484 | } | |
2485 | ||
2486 | /* Returns nonzero if access to the PSR is not permitted. */ | |
2487 | static int gen_set_psr_T0(DisasContext *s, uint32_t mask, int spsr) | |
2488 | { | |
2489 | if (spsr) { | |
2490 | /* ??? This is also undefined in system mode. */ | |
2491 | if (IS_USER(s)) | |
2492 | return 1; | |
2493 | gen_op_movl_spsr_T0(mask); | |
2494 | } else { | |
2495 | gen_op_movl_cpsr_T0(mask); | |
2496 | } | |
2497 | gen_lookup_tb(s); | |
2498 | return 0; | |
2499 | } | |
2500 | ||
9ee6e8bb | 2501 | /* Generate an old-style exception return. */ |
b5ff1b31 FB |
2502 | static void gen_exception_return(DisasContext *s) |
2503 | { | |
2504 | gen_op_movl_reg_TN[0][15](); | |
2505 | gen_op_movl_T0_spsr(); | |
2506 | gen_op_movl_cpsr_T0(0xffffffff); | |
2507 | s->is_jmp = DISAS_UPDATE; | |
2508 | } | |
2509 | ||
9ee6e8bb PB |
2510 | /* Generate a v6 exception return. */ |
2511 | static void gen_rfe(DisasContext *s) | |
2c0262af | 2512 | { |
9ee6e8bb PB |
2513 | gen_op_movl_cpsr_T0(0xffffffff); |
2514 | gen_op_movl_T0_T2(); | |
2515 | gen_op_movl_reg_TN[0][15](); | |
2516 | s->is_jmp = DISAS_UPDATE; | |
2517 | } | |
3b46e624 | 2518 | |
9ee6e8bb PB |
2519 | static inline void |
2520 | gen_set_condexec (DisasContext *s) | |
2521 | { | |
2522 | if (s->condexec_mask) { | |
2523 | gen_op_set_condexec((s->condexec_cond << 4) | (s->condexec_mask >> 1)); | |
2524 | } | |
2525 | } | |
3b46e624 | 2526 | |
9ee6e8bb PB |
2527 | static void gen_nop_hint(DisasContext *s, int val) |
2528 | { | |
2529 | switch (val) { | |
2530 | case 3: /* wfi */ | |
2531 | gen_op_movl_T0_im((long)s->pc); | |
2532 | gen_op_movl_reg_TN[0][15](); | |
2533 | s->is_jmp = DISAS_WFI; | |
2534 | break; | |
2535 | case 2: /* wfe */ | |
2536 | case 4: /* sev */ | |
2537 | /* TODO: Implement SEV and WFE. May help SMP performance. */ | |
2538 | default: /* nop */ | |
2539 | break; | |
2540 | } | |
2541 | } | |
99c475ab | 2542 | |
9ee6e8bb PB |
2543 | /* Neon shift by constant. The actual ops are the same as used for variable |
2544 | shifts. [OP][U][SIZE] */ | |
2545 | static GenOpFunc *gen_neon_shift_im[8][2][4] = { | |
2546 | { /* 0 */ /* VSHR */ | |
2547 | { | |
2548 | gen_op_neon_shl_u8, | |
2549 | gen_op_neon_shl_u16, | |
2550 | gen_op_neon_shl_u32, | |
2551 | gen_op_neon_shl_u64 | |
2552 | }, { | |
2553 | gen_op_neon_shl_s8, | |
2554 | gen_op_neon_shl_s16, | |
2555 | gen_op_neon_shl_s32, | |
2556 | gen_op_neon_shl_s64 | |
2557 | } | |
2558 | }, { /* 1 */ /* VSRA */ | |
2559 | { | |
2560 | gen_op_neon_shl_u8, | |
2561 | gen_op_neon_shl_u16, | |
2562 | gen_op_neon_shl_u32, | |
2563 | gen_op_neon_shl_u64 | |
2564 | }, { | |
2565 | gen_op_neon_shl_s8, | |
2566 | gen_op_neon_shl_s16, | |
2567 | gen_op_neon_shl_s32, | |
2568 | gen_op_neon_shl_s64 | |
2569 | } | |
2570 | }, { /* 2 */ /* VRSHR */ | |
2571 | { | |
2572 | gen_op_neon_rshl_u8, | |
2573 | gen_op_neon_rshl_u16, | |
2574 | gen_op_neon_rshl_u32, | |
2575 | gen_op_neon_rshl_u64 | |
2576 | }, { | |
2577 | gen_op_neon_rshl_s8, | |
2578 | gen_op_neon_rshl_s16, | |
2579 | gen_op_neon_rshl_s32, | |
2580 | gen_op_neon_rshl_s64 | |
2581 | } | |
2582 | }, { /* 3 */ /* VRSRA */ | |
2583 | { | |
2584 | gen_op_neon_rshl_u8, | |
2585 | gen_op_neon_rshl_u16, | |
2586 | gen_op_neon_rshl_u32, | |
2587 | gen_op_neon_rshl_u64 | |
2588 | }, { | |
2589 | gen_op_neon_rshl_s8, | |
2590 | gen_op_neon_rshl_s16, | |
2591 | gen_op_neon_rshl_s32, | |
2592 | gen_op_neon_rshl_s64 | |
2593 | } | |
2594 | }, { /* 4 */ | |
2595 | { | |
2596 | NULL, NULL, NULL, NULL | |
2597 | }, { /* VSRI */ | |
2598 | gen_op_neon_shl_u8, | |
2599 | gen_op_neon_shl_u16, | |
2600 | gen_op_neon_shl_u32, | |
2601 | gen_op_neon_shl_u64, | |
2602 | } | |
2603 | }, { /* 5 */ | |
2604 | { /* VSHL */ | |
2605 | gen_op_neon_shl_u8, | |
2606 | gen_op_neon_shl_u16, | |
2607 | gen_op_neon_shl_u32, | |
2608 | gen_op_neon_shl_u64, | |
2609 | }, { /* VSLI */ | |
2610 | gen_op_neon_shl_u8, | |
2611 | gen_op_neon_shl_u16, | |
2612 | gen_op_neon_shl_u32, | |
2613 | gen_op_neon_shl_u64, | |
2614 | } | |
2615 | }, { /* 6 */ /* VQSHL */ | |
2616 | { | |
2617 | gen_op_neon_qshl_u8, | |
2618 | gen_op_neon_qshl_u16, | |
2619 | gen_op_neon_qshl_u32, | |
2620 | gen_op_neon_qshl_u64 | |
2621 | }, { | |
2622 | gen_op_neon_qshl_s8, | |
2623 | gen_op_neon_qshl_s16, | |
2624 | gen_op_neon_qshl_s32, | |
2625 | gen_op_neon_qshl_s64 | |
2626 | } | |
2627 | }, { /* 7 */ /* VQSHLU */ | |
2628 | { | |
2629 | gen_op_neon_qshl_u8, | |
2630 | gen_op_neon_qshl_u16, | |
2631 | gen_op_neon_qshl_u32, | |
2632 | gen_op_neon_qshl_u64 | |
2633 | }, { | |
2634 | gen_op_neon_qshl_u8, | |
2635 | gen_op_neon_qshl_u16, | |
2636 | gen_op_neon_qshl_u32, | |
2637 | gen_op_neon_qshl_u64 | |
2638 | } | |
99c475ab | 2639 | } |
9ee6e8bb PB |
2640 | }; |
2641 | ||
2642 | /* [R][U][size - 1] */ | |
2643 | static GenOpFunc *gen_neon_shift_im_narrow[2][2][3] = { | |
2644 | { | |
2645 | { | |
2646 | gen_op_neon_shl_u16, | |
2647 | gen_op_neon_shl_u32, | |
2648 | gen_op_neon_shl_u64 | |
2649 | }, { | |
2650 | gen_op_neon_shl_s16, | |
2651 | gen_op_neon_shl_s32, | |
2652 | gen_op_neon_shl_s64 | |
2653 | } | |
2654 | }, { | |
2655 | { | |
2656 | gen_op_neon_rshl_u16, | |
2657 | gen_op_neon_rshl_u32, | |
2658 | gen_op_neon_rshl_u64 | |
2659 | }, { | |
2660 | gen_op_neon_rshl_s16, | |
2661 | gen_op_neon_rshl_s32, | |
2662 | gen_op_neon_rshl_s64 | |
2663 | } | |
2c0262af | 2664 | } |
9ee6e8bb | 2665 | }; |
99c475ab | 2666 | |
9ee6e8bb PB |
2667 | static inline void |
2668 | gen_op_neon_narrow_u32 () | |
2669 | { | |
2670 | /* No-op. */ | |
2671 | } | |
2672 | ||
2673 | static GenOpFunc *gen_neon_narrow[3] = { | |
2674 | gen_op_neon_narrow_u8, | |
2675 | gen_op_neon_narrow_u16, | |
2676 | gen_op_neon_narrow_u32 | |
2677 | }; | |
2678 | ||
2679 | static GenOpFunc *gen_neon_narrow_satu[3] = { | |
2680 | gen_op_neon_narrow_sat_u8, | |
2681 | gen_op_neon_narrow_sat_u16, | |
2682 | gen_op_neon_narrow_sat_u32 | |
2683 | }; | |
2684 | ||
2685 | static GenOpFunc *gen_neon_narrow_sats[3] = { | |
2686 | gen_op_neon_narrow_sat_s8, | |
2687 | gen_op_neon_narrow_sat_s16, | |
2688 | gen_op_neon_narrow_sat_s32 | |
2689 | }; | |
2690 | ||
2691 | static inline int gen_neon_add(int size) | |
2692 | { | |
2693 | switch (size) { | |
2694 | case 0: gen_op_neon_add_u8(); break; | |
2695 | case 1: gen_op_neon_add_u16(); break; | |
2696 | case 2: gen_op_addl_T0_T1(); break; | |
2697 | default: return 1; | |
2698 | } | |
2699 | return 0; | |
2700 | } | |
2701 | ||
2702 | /* 32-bit pairwise ops end up the same as the elementsise versions. */ | |
2703 | #define gen_op_neon_pmax_s32 gen_op_neon_max_s32 | |
2704 | #define gen_op_neon_pmax_u32 gen_op_neon_max_u32 | |
2705 | #define gen_op_neon_pmin_s32 gen_op_neon_min_s32 | |
2706 | #define gen_op_neon_pmin_u32 gen_op_neon_min_u32 | |
2707 | ||
2708 | #define GEN_NEON_INTEGER_OP(name) do { \ | |
2709 | switch ((size << 1) | u) { \ | |
2710 | case 0: gen_op_neon_##name##_s8(); break; \ | |
2711 | case 1: gen_op_neon_##name##_u8(); break; \ | |
2712 | case 2: gen_op_neon_##name##_s16(); break; \ | |
2713 | case 3: gen_op_neon_##name##_u16(); break; \ | |
2714 | case 4: gen_op_neon_##name##_s32(); break; \ | |
2715 | case 5: gen_op_neon_##name##_u32(); break; \ | |
2716 | default: return 1; \ | |
2717 | }} while (0) | |
2718 | ||
2719 | static inline void | |
2720 | gen_neon_movl_scratch_T0(int scratch) | |
2721 | { | |
2722 | uint32_t offset; | |
2723 | ||
2724 | offset = offsetof(CPUARMState, vfp.scratch[scratch]); | |
2725 | gen_op_neon_setreg_T0(offset); | |
2726 | } | |
2727 | ||
2728 | static inline void | |
2729 | gen_neon_movl_scratch_T1(int scratch) | |
2730 | { | |
2731 | uint32_t offset; | |
2732 | ||
2733 | offset = offsetof(CPUARMState, vfp.scratch[scratch]); | |
2734 | gen_op_neon_setreg_T1(offset); | |
2735 | } | |
2736 | ||
2737 | static inline void | |
2738 | gen_neon_movl_T0_scratch(int scratch) | |
2739 | { | |
2740 | uint32_t offset; | |
2741 | ||
2742 | offset = offsetof(CPUARMState, vfp.scratch[scratch]); | |
2743 | gen_op_neon_getreg_T0(offset); | |
2744 | } | |
2745 | ||
2746 | static inline void | |
2747 | gen_neon_movl_T1_scratch(int scratch) | |
2748 | { | |
2749 | uint32_t offset; | |
2750 | ||
2751 | offset = offsetof(CPUARMState, vfp.scratch[scratch]); | |
2752 | gen_op_neon_getreg_T1(offset); | |
2753 | } | |
2754 | ||
2755 | static inline void gen_op_neon_widen_u32(void) | |
2756 | { | |
2757 | gen_op_movl_T1_im(0); | |
2758 | } | |
2759 | ||
2760 | static inline void gen_neon_get_scalar(int size, int reg) | |
2761 | { | |
2762 | if (size == 1) { | |
2763 | NEON_GET_REG(T0, reg >> 1, reg & 1); | |
2764 | } else { | |
2765 | NEON_GET_REG(T0, reg >> 2, (reg >> 1) & 1); | |
2766 | if (reg & 1) | |
2767 | gen_op_neon_dup_low16(); | |
2768 | else | |
2769 | gen_op_neon_dup_high16(); | |
2770 | } | |
2771 | } | |
2772 | ||
2773 | static void gen_neon_unzip(int reg, int q, int tmp, int size) | |
2774 | { | |
2775 | int n; | |
2776 | ||
2777 | for (n = 0; n < q + 1; n += 2) { | |
2778 | NEON_GET_REG(T0, reg, n); | |
2779 | NEON_GET_REG(T0, reg, n + n); | |
2780 | switch (size) { | |
2781 | case 0: gen_op_neon_unzip_u8(); break; | |
2782 | case 1: gen_op_neon_zip_u16(); break; /* zip and unzip are the same. */ | |
2783 | case 2: /* no-op */; break; | |
2784 | default: abort(); | |
2785 | } | |
2786 | gen_neon_movl_scratch_T0(tmp + n); | |
2787 | gen_neon_movl_scratch_T1(tmp + n + 1); | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | static struct { | |
2792 | int nregs; | |
2793 | int interleave; | |
2794 | int spacing; | |
2795 | } neon_ls_element_type[11] = { | |
2796 | {4, 4, 1}, | |
2797 | {4, 4, 2}, | |
2798 | {4, 1, 1}, | |
2799 | {4, 2, 1}, | |
2800 | {3, 3, 1}, | |
2801 | {3, 3, 2}, | |
2802 | {3, 1, 1}, | |
2803 | {1, 1, 1}, | |
2804 | {2, 2, 1}, | |
2805 | {2, 2, 2}, | |
2806 | {2, 1, 1} | |
2807 | }; | |
2808 | ||
2809 | /* Translate a NEON load/store element instruction. Return nonzero if the | |
2810 | instruction is invalid. */ | |
2811 | static int disas_neon_ls_insn(CPUState * env, DisasContext *s, uint32_t insn) | |
2812 | { | |
2813 | int rd, rn, rm; | |
2814 | int op; | |
2815 | int nregs; | |
2816 | int interleave; | |
2817 | int stride; | |
2818 | int size; | |
2819 | int reg; | |
2820 | int pass; | |
2821 | int load; | |
2822 | int shift; | |
2823 | uint32_t mask; | |
2824 | int n; | |
2825 | ||
2826 | if (!vfp_enabled(env)) | |
2827 | return 1; | |
2828 | VFP_DREG_D(rd, insn); | |
2829 | rn = (insn >> 16) & 0xf; | |
2830 | rm = insn & 0xf; | |
2831 | load = (insn & (1 << 21)) != 0; | |
2832 | if ((insn & (1 << 23)) == 0) { | |
2833 | /* Load store all elements. */ | |
2834 | op = (insn >> 8) & 0xf; | |
2835 | size = (insn >> 6) & 3; | |
2836 | if (op > 10 || size == 3) | |
2837 | return 1; | |
2838 | nregs = neon_ls_element_type[op].nregs; | |
2839 | interleave = neon_ls_element_type[op].interleave; | |
2840 | gen_movl_T1_reg(s, rn); | |
2841 | stride = (1 << size) * interleave; | |
2842 | for (reg = 0; reg < nregs; reg++) { | |
2843 | if (interleave > 2 || (interleave == 2 && nregs == 2)) { | |
2844 | gen_movl_T1_reg(s, rn); | |
2845 | gen_op_addl_T1_im((1 << size) * reg); | |
2846 | } else if (interleave == 2 && nregs == 4 && reg == 2) { | |
2847 | gen_movl_T1_reg(s, rn); | |
2848 | gen_op_addl_T1_im(1 << size); | |
2849 | } | |
2850 | for (pass = 0; pass < 2; pass++) { | |
2851 | if (size == 2) { | |
2852 | if (load) { | |
2853 | gen_ldst(ldl, s); | |
2854 | NEON_SET_REG(T0, rd, pass); | |
2855 | } else { | |
2856 | NEON_GET_REG(T0, rd, pass); | |
2857 | gen_ldst(stl, s); | |
2858 | } | |
2859 | gen_op_addl_T1_im(stride); | |
2860 | } else if (size == 1) { | |
2861 | if (load) { | |
2862 | gen_ldst(lduw, s); | |
2863 | gen_op_addl_T1_im(stride); | |
2864 | gen_op_movl_T2_T0(); | |
2865 | gen_ldst(lduw, s); | |
2866 | gen_op_addl_T1_im(stride); | |
2867 | gen_op_neon_insert_elt(16, 0xffff); | |
2868 | NEON_SET_REG(T2, rd, pass); | |
2869 | } else { | |
2870 | NEON_GET_REG(T2, rd, pass); | |
2871 | gen_op_movl_T0_T2(); | |
2872 | gen_ldst(stw, s); | |
2873 | gen_op_addl_T1_im(stride); | |
2874 | gen_op_neon_extract_elt(16, 0xffff0000); | |
2875 | gen_ldst(stw, s); | |
2876 | gen_op_addl_T1_im(stride); | |
2877 | } | |
2878 | } else /* size == 0 */ { | |
2879 | if (load) { | |
2880 | mask = 0xff; | |
2881 | for (n = 0; n < 4; n++) { | |
2882 | gen_ldst(ldub, s); | |
2883 | gen_op_addl_T1_im(stride); | |
2884 | if (n == 0) { | |
2885 | gen_op_movl_T2_T0(); | |
2886 | } else { | |
2887 | gen_op_neon_insert_elt(n * 8, ~mask); | |
2888 | } | |
2889 | mask <<= 8; | |
2890 | } | |
2891 | NEON_SET_REG(T2, rd, pass); | |
2892 | } else { | |
2893 | NEON_GET_REG(T2, rd, pass); | |
2894 | mask = 0xff; | |
2895 | for (n = 0; n < 4; n++) { | |
2896 | if (n == 0) { | |
2897 | gen_op_movl_T0_T2(); | |
2898 | } else { | |
2899 | gen_op_neon_extract_elt(n * 8, mask); | |
2900 | } | |
2901 | gen_ldst(stb, s); | |
2902 | gen_op_addl_T1_im(stride); | |
2903 | mask <<= 8; | |
2904 | } | |
2905 | } | |
2906 | } | |
2907 | } | |
2908 | rd += neon_ls_element_type[op].spacing; | |
2909 | } | |
2910 | stride = nregs * 8; | |
2911 | } else { | |
2912 | size = (insn >> 10) & 3; | |
2913 | if (size == 3) { | |
2914 | /* Load single element to all lanes. */ | |
2915 | if (!load) | |
2916 | return 1; | |
2917 | size = (insn >> 6) & 3; | |
2918 | nregs = ((insn >> 8) & 3) + 1; | |
2919 | stride = (insn & (1 << 5)) ? 2 : 1; | |
ff8263a9 | 2920 | gen_movl_T1_reg(s, rn); |
9ee6e8bb PB |
2921 | for (reg = 0; reg < nregs; reg++) { |
2922 | switch (size) { | |
2923 | case 0: | |
2924 | gen_ldst(ldub, s); | |
2925 | gen_op_neon_dup_u8(0); | |
2926 | break; | |
2927 | case 1: | |
2928 | gen_ldst(lduw, s); | |
2929 | gen_op_neon_dup_low16(); | |
2930 | break; | |
2931 | case 2: | |
2932 | gen_ldst(ldl, s); | |
2933 | break; | |
2934 | case 3: | |
2935 | return 1; | |
99c475ab | 2936 | } |
9ee6e8bb PB |
2937 | gen_op_addl_T1_im(1 << size); |
2938 | NEON_SET_REG(T0, rd, 0); | |
2939 | NEON_SET_REG(T0, rd, 1); | |
2940 | rd += stride; | |
2941 | } | |
2942 | stride = (1 << size) * nregs; | |
2943 | } else { | |
2944 | /* Single element. */ | |
2945 | pass = (insn >> 7) & 1; | |
2946 | switch (size) { | |
2947 | case 0: | |
2948 | shift = ((insn >> 5) & 3) * 8; | |
2949 | mask = 0xff << shift; | |
2950 | stride = 1; | |
2951 | break; | |
2952 | case 1: | |
2953 | shift = ((insn >> 6) & 1) * 16; | |
2954 | mask = shift ? 0xffff0000 : 0xffff; | |
2955 | stride = (insn & (1 << 5)) ? 2 : 1; | |
2956 | break; | |
2957 | case 2: | |
2958 | shift = 0; | |
2959 | mask = 0xffffffff; | |
2960 | stride = (insn & (1 << 6)) ? 2 : 1; | |
2961 | break; | |
2962 | default: | |
2963 | abort(); | |
2964 | } | |
2965 | nregs = ((insn >> 8) & 3) + 1; | |
2966 | gen_movl_T1_reg(s, rn); | |
2967 | for (reg = 0; reg < nregs; reg++) { | |
2968 | if (load) { | |
2969 | if (size != 2) { | |
2970 | NEON_GET_REG(T2, rd, pass); | |
2971 | } | |
2972 | switch (size) { | |
2973 | case 0: | |
2974 | gen_ldst(ldub, s); | |
2975 | break; | |
2976 | case 1: | |
2977 | gen_ldst(lduw, s); | |
2978 | break; | |
2979 | case 2: | |
2980 | gen_ldst(ldl, s); | |
2981 | NEON_SET_REG(T0, rd, pass); | |
2982 | break; | |
2983 | } | |
2984 | if (size != 2) { | |
2985 | gen_op_neon_insert_elt(shift, ~mask); | |
2986 | NEON_SET_REG(T0, rd, pass); | |
2987 | } | |
2988 | } else { /* Store */ | |
2989 | if (size == 2) { | |
2990 | NEON_GET_REG(T0, rd, pass); | |
2991 | } else { | |
2992 | NEON_GET_REG(T2, rd, pass); | |
2993 | gen_op_neon_extract_elt(shift, mask); | |
2994 | } | |
2995 | switch (size) { | |
2996 | case 0: | |
2997 | gen_ldst(stb, s); | |
2998 | break; | |
2999 | case 1: | |
3000 | gen_ldst(stw, s); | |
3001 | break; | |
3002 | case 2: | |
3003 | gen_ldst(stl, s); | |
3004 | break; | |
99c475ab | 3005 | } |
99c475ab | 3006 | } |
9ee6e8bb PB |
3007 | rd += stride; |
3008 | gen_op_addl_T1_im(1 << size); | |
99c475ab | 3009 | } |
9ee6e8bb | 3010 | stride = nregs * (1 << size); |
99c475ab | 3011 | } |
9ee6e8bb PB |
3012 | } |
3013 | if (rm != 15) { | |
3014 | gen_movl_T1_reg(s, rn); | |
3015 | if (rm == 13) { | |
3016 | gen_op_addl_T1_im(stride); | |
3017 | } else { | |
3018 | gen_movl_T2_reg(s, rm); | |
3019 | gen_op_addl_T1_T2(); | |
3020 | } | |
3021 | gen_movl_reg_T1(s, rn); | |
3022 | } | |
3023 | return 0; | |
3024 | } | |
3b46e624 | 3025 | |
9ee6e8bb PB |
3026 | /* Translate a NEON data processing instruction. Return nonzero if the |
3027 | instruction is invalid. | |
3028 | In general we process vectors in 32-bit chunks. This means we can reuse | |
3029 | some of the scalar ops, and hopefully the code generated for 32-bit | |
3030 | hosts won't be too awful. The downside is that the few 64-bit operations | |
3031 | (mainly shifts) get complicated. */ | |
2c0262af | 3032 | |
9ee6e8bb PB |
3033 | static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn) |
3034 | { | |
3035 | int op; | |
3036 | int q; | |
3037 | int rd, rn, rm; | |
3038 | int size; | |
3039 | int shift; | |
3040 | int pass; | |
3041 | int count; | |
3042 | int pairwise; | |
3043 | int u; | |
3044 | int n; | |
3045 | uint32_t imm; | |
3046 | ||
3047 | if (!vfp_enabled(env)) | |
3048 | return 1; | |
3049 | q = (insn & (1 << 6)) != 0; | |
3050 | u = (insn >> 24) & 1; | |
3051 | VFP_DREG_D(rd, insn); | |
3052 | VFP_DREG_N(rn, insn); | |
3053 | VFP_DREG_M(rm, insn); | |
3054 | size = (insn >> 20) & 3; | |
3055 | if ((insn & (1 << 23)) == 0) { | |
3056 | /* Three register same length. */ | |
3057 | op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1); | |
3058 | if (size == 3 && (op == 1 || op == 5 || op == 16)) { | |
3059 | for (pass = 0; pass < (q ? 2 : 1); pass++) { | |
3060 | NEON_GET_REG(T0, rm, pass * 2); | |
3061 | NEON_GET_REG(T1, rm, pass * 2 + 1); | |
3062 | gen_neon_movl_scratch_T0(0); | |
3063 | gen_neon_movl_scratch_T1(1); | |
3064 | NEON_GET_REG(T0, rn, pass * 2); | |
3065 | NEON_GET_REG(T1, rn, pass * 2 + 1); | |
3066 | switch (op) { | |
3067 | case 1: /* VQADD */ | |
3068 | if (u) { | |
3069 | gen_op_neon_addl_saturate_u64(); | |
2c0262af | 3070 | } else { |
9ee6e8bb | 3071 | gen_op_neon_addl_saturate_s64(); |
2c0262af | 3072 | } |
9ee6e8bb PB |
3073 | break; |
3074 | case 5: /* VQSUB */ | |
3075 | if (u) { | |
3076 | gen_op_neon_subl_saturate_u64(); | |
1e8d4eec | 3077 | } else { |
9ee6e8bb | 3078 | gen_op_neon_subl_saturate_s64(); |
1e8d4eec | 3079 | } |
9ee6e8bb PB |
3080 | break; |
3081 | case 16: | |
3082 | if (u) { | |
3083 | gen_op_neon_subl_u64(); | |
3084 | } else { | |
3085 | gen_op_neon_addl_u64(); | |
3086 | } | |
3087 | break; | |
3088 | default: | |
3089 | abort(); | |
2c0262af | 3090 | } |
9ee6e8bb PB |
3091 | NEON_SET_REG(T0, rd, pass * 2); |
3092 | NEON_SET_REG(T1, rd, pass * 2 + 1); | |
2c0262af | 3093 | } |
9ee6e8bb | 3094 | return 0; |
2c0262af | 3095 | } |
9ee6e8bb PB |
3096 | switch (op) { |
3097 | case 8: /* VSHL */ | |
3098 | case 9: /* VQSHL */ | |
3099 | case 10: /* VRSHL */ | |
3100 | case 11: /* VQSHL */ | |
3101 | /* Shift operations have Rn and Rm reversed. */ | |
3102 | { | |
3103 | int tmp; | |
3104 | tmp = rn; | |
3105 | rn = rm; | |
3106 | rm = tmp; | |
3107 | pairwise = 0; | |
3108 | } | |
2c0262af | 3109 | break; |
9ee6e8bb PB |
3110 | case 20: /* VPMAX */ |
3111 | case 21: /* VPMIN */ | |
3112 | case 23: /* VPADD */ | |
3113 | pairwise = 1; | |
2c0262af | 3114 | break; |
9ee6e8bb PB |
3115 | case 26: /* VPADD (float) */ |
3116 | pairwise = (u && size < 2); | |
2c0262af | 3117 | break; |
9ee6e8bb PB |
3118 | case 30: /* VPMIN/VPMAX (float) */ |
3119 | pairwise = u; | |
2c0262af | 3120 | break; |
9ee6e8bb PB |
3121 | default: |
3122 | pairwise = 0; | |
2c0262af | 3123 | break; |
9ee6e8bb PB |
3124 | } |
3125 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
3126 | ||
3127 | if (pairwise) { | |
3128 | /* Pairwise. */ | |
3129 | if (q) | |
3130 | n = (pass & 1) * 2; | |
2c0262af | 3131 | else |
9ee6e8bb PB |
3132 | n = 0; |
3133 | if (pass < q + 1) { | |
3134 | NEON_GET_REG(T0, rn, n); | |
3135 | NEON_GET_REG(T1, rn, n + 1); | |
3136 | } else { | |
3137 | NEON_GET_REG(T0, rm, n); | |
3138 | NEON_GET_REG(T1, rm, n + 1); | |
3139 | } | |
3140 | } else { | |
3141 | /* Elementwise. */ | |
3142 | NEON_GET_REG(T0, rn, pass); | |
3143 | NEON_GET_REG(T1, rm, pass); | |
3144 | } | |
3145 | switch (op) { | |
3146 | case 0: /* VHADD */ | |
3147 | GEN_NEON_INTEGER_OP(hadd); | |
3148 | break; | |
3149 | case 1: /* VQADD */ | |
3150 | switch (size << 1| u) { | |
3151 | case 0: gen_op_neon_qadd_s8(); break; | |
3152 | case 1: gen_op_neon_qadd_u8(); break; | |
3153 | case 2: gen_op_neon_qadd_s16(); break; | |
3154 | case 3: gen_op_neon_qadd_u16(); break; | |
3155 | case 4: gen_op_addl_T0_T1_saturate(); break; | |
3156 | case 5: gen_op_addl_T0_T1_usaturate(); break; | |
3157 | default: abort(); | |
3158 | } | |
2c0262af | 3159 | break; |
9ee6e8bb PB |
3160 | case 2: /* VRHADD */ |
3161 | GEN_NEON_INTEGER_OP(rhadd); | |
2c0262af | 3162 | break; |
9ee6e8bb PB |
3163 | case 3: /* Logic ops. */ |
3164 | switch ((u << 2) | size) { | |
3165 | case 0: /* VAND */ | |
2c0262af | 3166 | gen_op_andl_T0_T1(); |
9ee6e8bb PB |
3167 | break; |
3168 | case 1: /* BIC */ | |
3169 | gen_op_bicl_T0_T1(); | |
3170 | break; | |
3171 | case 2: /* VORR */ | |
3172 | gen_op_orl_T0_T1(); | |
3173 | break; | |
3174 | case 3: /* VORN */ | |
3175 | gen_op_notl_T1(); | |
3176 | gen_op_orl_T0_T1(); | |
3177 | break; | |
3178 | case 4: /* VEOR */ | |
3179 | gen_op_xorl_T0_T1(); | |
3180 | break; | |
3181 | case 5: /* VBSL */ | |
3182 | NEON_GET_REG(T2, rd, pass); | |
3183 | gen_op_neon_bsl(); | |
3184 | break; | |
3185 | case 6: /* VBIT */ | |
3186 | NEON_GET_REG(T2, rd, pass); | |
3187 | gen_op_neon_bit(); | |
3188 | break; | |
3189 | case 7: /* VBIF */ | |
3190 | NEON_GET_REG(T2, rd, pass); | |
3191 | gen_op_neon_bif(); | |
3192 | break; | |
2c0262af FB |
3193 | } |
3194 | break; | |
9ee6e8bb PB |
3195 | case 4: /* VHSUB */ |
3196 | GEN_NEON_INTEGER_OP(hsub); | |
3197 | break; | |
3198 | case 5: /* VQSUB */ | |
3199 | switch ((size << 1) | u) { | |
3200 | case 0: gen_op_neon_qsub_s8(); break; | |
3201 | case 1: gen_op_neon_qsub_u8(); break; | |
3202 | case 2: gen_op_neon_qsub_s16(); break; | |
3203 | case 3: gen_op_neon_qsub_u16(); break; | |
3204 | case 4: gen_op_subl_T0_T1_saturate(); break; | |
3205 | case 5: gen_op_subl_T0_T1_usaturate(); break; | |
3206 | default: abort(); | |
2c0262af FB |
3207 | } |
3208 | break; | |
9ee6e8bb PB |
3209 | case 6: /* VCGT */ |
3210 | GEN_NEON_INTEGER_OP(cgt); | |
3211 | break; | |
3212 | case 7: /* VCGE */ | |
3213 | GEN_NEON_INTEGER_OP(cge); | |
3214 | break; | |
3215 | case 8: /* VSHL */ | |
3216 | switch ((size << 1) | u) { | |
3217 | case 0: gen_op_neon_shl_s8(); break; | |
3218 | case 1: gen_op_neon_shl_u8(); break; | |
3219 | case 2: gen_op_neon_shl_s16(); break; | |
3220 | case 3: gen_op_neon_shl_u16(); break; | |
3221 | case 4: gen_op_neon_shl_s32(); break; | |
3222 | case 5: gen_op_neon_shl_u32(); break; | |
3223 | #if 0 | |
3224 | /* ??? Implementing these is tricky because the vector ops work | |
3225 | on 32-bit pieces. */ | |
3226 | case 6: gen_op_neon_shl_s64(); break; | |
3227 | case 7: gen_op_neon_shl_u64(); break; | |
3228 | #else | |
3229 | case 6: case 7: cpu_abort(env, "VSHL.64 not implemented"); | |
3230 | #endif | |
2c0262af FB |
3231 | } |
3232 | break; | |
9ee6e8bb PB |
3233 | case 9: /* VQSHL */ |
3234 | switch ((size << 1) | u) { | |
3235 | case 0: gen_op_neon_qshl_s8(); break; | |
3236 | case 1: gen_op_neon_qshl_u8(); break; | |
3237 | case 2: gen_op_neon_qshl_s16(); break; | |
3238 | case 3: gen_op_neon_qshl_u16(); break; | |
3239 | case 4: gen_op_neon_qshl_s32(); break; | |
3240 | case 5: gen_op_neon_qshl_u32(); break; | |
3241 | #if 0 | |
3242 | /* ??? Implementing these is tricky because the vector ops work | |
3243 | on 32-bit pieces. */ | |
3244 | case 6: gen_op_neon_qshl_s64(); break; | |
3245 | case 7: gen_op_neon_qshl_u64(); break; | |
3246 | #else | |
3247 | case 6: case 7: cpu_abort(env, "VQSHL.64 not implemented"); | |
3248 | #endif | |
2c0262af FB |
3249 | } |
3250 | break; | |
9ee6e8bb PB |
3251 | case 10: /* VRSHL */ |
3252 | switch ((size << 1) | u) { | |
3253 | case 0: gen_op_neon_rshl_s8(); break; | |
3254 | case 1: gen_op_neon_rshl_u8(); break; | |
3255 | case 2: gen_op_neon_rshl_s16(); break; | |
3256 | case 3: gen_op_neon_rshl_u16(); break; | |
3257 | case 4: gen_op_neon_rshl_s32(); break; | |
3258 | case 5: gen_op_neon_rshl_u32(); break; | |
3259 | #if 0 | |
3260 | /* ??? Implementing these is tricky because the vector ops work | |
3261 | on 32-bit pieces. */ | |
3262 | case 6: gen_op_neon_rshl_s64(); break; | |
3263 | case 7: gen_op_neon_rshl_u64(); break; | |
3264 | #else | |
3265 | case 6: case 7: cpu_abort(env, "VRSHL.64 not implemented"); | |
3266 | #endif | |
3267 | } | |
2c0262af | 3268 | break; |
9ee6e8bb PB |
3269 | case 11: /* VQRSHL */ |
3270 | switch ((size << 1) | u) { | |
3271 | case 0: gen_op_neon_qrshl_s8(); break; | |
3272 | case 1: gen_op_neon_qrshl_u8(); break; | |
3273 | case 2: gen_op_neon_qrshl_s16(); break; | |
3274 | case 3: gen_op_neon_qrshl_u16(); break; | |
3275 | case 4: gen_op_neon_qrshl_s32(); break; | |
3276 | case 5: gen_op_neon_qrshl_u32(); break; | |
3277 | #if 0 | |
3278 | /* ??? Implementing these is tricky because the vector ops work | |
3279 | on 32-bit pieces. */ | |
3280 | case 6: gen_op_neon_qrshl_s64(); break; | |
3281 | case 7: gen_op_neon_qrshl_u64(); break; | |
3282 | #else | |
3283 | case 6: case 7: cpu_abort(env, "VQRSHL.64 not implemented"); | |
3284 | #endif | |
3285 | } | |
3286 | break; | |
3287 | case 12: /* VMAX */ | |
3288 | GEN_NEON_INTEGER_OP(max); | |
3289 | break; | |
3290 | case 13: /* VMIN */ | |
3291 | GEN_NEON_INTEGER_OP(min); | |
3292 | break; | |
3293 | case 14: /* VABD */ | |
3294 | GEN_NEON_INTEGER_OP(abd); | |
3295 | break; | |
3296 | case 15: /* VABA */ | |
3297 | GEN_NEON_INTEGER_OP(abd); | |
3298 | NEON_GET_REG(T1, rd, pass); | |
3299 | gen_neon_add(size); | |
3300 | break; | |
3301 | case 16: | |
3302 | if (!u) { /* VADD */ | |
3303 | if (gen_neon_add(size)) | |
3304 | return 1; | |
3305 | } else { /* VSUB */ | |
3306 | switch (size) { | |
3307 | case 0: gen_op_neon_sub_u8(); break; | |
3308 | case 1: gen_op_neon_sub_u16(); break; | |
3309 | case 2: gen_op_subl_T0_T1(); break; | |
3310 | default: return 1; | |
3311 | } | |
3312 | } | |
3313 | break; | |
3314 | case 17: | |
3315 | if (!u) { /* VTST */ | |
3316 | switch (size) { | |
3317 | case 0: gen_op_neon_tst_u8(); break; | |
3318 | case 1: gen_op_neon_tst_u16(); break; | |
3319 | case 2: gen_op_neon_tst_u32(); break; | |
3320 | default: return 1; | |
3321 | } | |
3322 | } else { /* VCEQ */ | |
3323 | switch (size) { | |
3324 | case 0: gen_op_neon_ceq_u8(); break; | |
3325 | case 1: gen_op_neon_ceq_u16(); break; | |
3326 | case 2: gen_op_neon_ceq_u32(); break; | |
3327 | default: return 1; | |
3328 | } | |
3329 | } | |
3330 | break; | |
3331 | case 18: /* Multiply. */ | |
3332 | switch (size) { | |
3333 | case 0: gen_op_neon_mul_u8(); break; | |
3334 | case 1: gen_op_neon_mul_u16(); break; | |
3335 | case 2: gen_op_mul_T0_T1(); break; | |
3336 | default: return 1; | |
3337 | } | |
3338 | NEON_GET_REG(T1, rd, pass); | |
3339 | if (u) { /* VMLS */ | |
3340 | switch (size) { | |
3341 | case 0: gen_op_neon_rsb_u8(); break; | |
3342 | case 1: gen_op_neon_rsb_u16(); break; | |
3343 | case 2: gen_op_rsbl_T0_T1(); break; | |
3344 | default: return 1; | |
3345 | } | |
3346 | } else { /* VMLA */ | |
3347 | gen_neon_add(size); | |
3348 | } | |
3349 | break; | |
3350 | case 19: /* VMUL */ | |
3351 | if (u) { /* polynomial */ | |
3352 | gen_op_neon_mul_p8(); | |
3353 | } else { /* Integer */ | |
3354 | switch (size) { | |
3355 | case 0: gen_op_neon_mul_u8(); break; | |
3356 | case 1: gen_op_neon_mul_u16(); break; | |
3357 | case 2: gen_op_mul_T0_T1(); break; | |
3358 | default: return 1; | |
3359 | } | |
3360 | } | |
3361 | break; | |
3362 | case 20: /* VPMAX */ | |
3363 | GEN_NEON_INTEGER_OP(pmax); | |
3364 | break; | |
3365 | case 21: /* VPMIN */ | |
3366 | GEN_NEON_INTEGER_OP(pmin); | |
3367 | break; | |
3368 | case 22: /* Hultiply high. */ | |
3369 | if (!u) { /* VQDMULH */ | |
3370 | switch (size) { | |
3371 | case 1: gen_op_neon_qdmulh_s16(); break; | |
3372 | case 2: gen_op_neon_qdmulh_s32(); break; | |
3373 | default: return 1; | |
3374 | } | |
3375 | } else { /* VQRDHMUL */ | |
3376 | switch (size) { | |
3377 | case 1: gen_op_neon_qrdmulh_s16(); break; | |
3378 | case 2: gen_op_neon_qrdmulh_s32(); break; | |
3379 | default: return 1; | |
3380 | } | |
3381 | } | |
3382 | break; | |
3383 | case 23: /* VPADD */ | |
3384 | if (u) | |
3385 | return 1; | |
3386 | switch (size) { | |
3387 | case 0: gen_op_neon_padd_u8(); break; | |
3388 | case 1: gen_op_neon_padd_u16(); break; | |
3389 | case 2: gen_op_addl_T0_T1(); break; | |
3390 | default: return 1; | |
3391 | } | |
3392 | break; | |
3393 | case 26: /* Floating point arithnetic. */ | |
3394 | switch ((u << 2) | size) { | |
3395 | case 0: /* VADD */ | |
3396 | gen_op_neon_add_f32(); | |
3397 | break; | |
3398 | case 2: /* VSUB */ | |
3399 | gen_op_neon_sub_f32(); | |
3400 | break; | |
3401 | case 4: /* VPADD */ | |
3402 | gen_op_neon_add_f32(); | |
3403 | break; | |
3404 | case 6: /* VABD */ | |
3405 | gen_op_neon_abd_f32(); | |
3406 | break; | |
3407 | default: | |
3408 | return 1; | |
3409 | } | |
3410 | break; | |
3411 | case 27: /* Float multiply. */ | |
3412 | gen_op_neon_mul_f32(); | |
3413 | if (!u) { | |
3414 | NEON_GET_REG(T1, rd, pass); | |
3415 | if (size == 0) { | |
3416 | gen_op_neon_add_f32(); | |
3417 | } else { | |
3418 | gen_op_neon_rsb_f32(); | |
3419 | } | |
3420 | } | |
3421 | break; | |
3422 | case 28: /* Float compare. */ | |
3423 | if (!u) { | |
3424 | gen_op_neon_ceq_f32(); | |
b5ff1b31 | 3425 | } else { |
9ee6e8bb PB |
3426 | if (size == 0) |
3427 | gen_op_neon_cge_f32(); | |
3428 | else | |
3429 | gen_op_neon_cgt_f32(); | |
b5ff1b31 | 3430 | } |
2c0262af | 3431 | break; |
9ee6e8bb PB |
3432 | case 29: /* Float compare absolute. */ |
3433 | if (!u) | |
3434 | return 1; | |
3435 | if (size == 0) | |
3436 | gen_op_neon_acge_f32(); | |
3437 | else | |
3438 | gen_op_neon_acgt_f32(); | |
2c0262af | 3439 | break; |
9ee6e8bb PB |
3440 | case 30: /* Float min/max. */ |
3441 | if (size == 0) | |
3442 | gen_op_neon_max_f32(); | |
3443 | else | |
3444 | gen_op_neon_min_f32(); | |
3445 | break; | |
3446 | case 31: | |
3447 | if (size == 0) | |
3448 | gen_op_neon_recps_f32(); | |
3449 | else | |
3450 | gen_op_neon_rsqrts_f32(); | |
2c0262af | 3451 | break; |
9ee6e8bb PB |
3452 | default: |
3453 | abort(); | |
2c0262af | 3454 | } |
9ee6e8bb PB |
3455 | /* Save the result. For elementwise operations we can put it |
3456 | straight into the destination register. For pairwise operations | |
3457 | we have to be careful to avoid clobbering the source operands. */ | |
3458 | if (pairwise && rd == rm) { | |
3459 | gen_neon_movl_scratch_T0(pass); | |
3460 | } else { | |
3461 | NEON_SET_REG(T0, rd, pass); | |
3462 | } | |
3463 | ||
3464 | } /* for pass */ | |
3465 | if (pairwise && rd == rm) { | |
3466 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
3467 | gen_neon_movl_T0_scratch(pass); | |
3468 | NEON_SET_REG(T0, rd, pass); | |
3469 | } | |
3470 | } | |
3471 | } else if (insn & (1 << 4)) { | |
3472 | if ((insn & 0x00380080) != 0) { | |
3473 | /* Two registers and shift. */ | |
3474 | op = (insn >> 8) & 0xf; | |
3475 | if (insn & (1 << 7)) { | |
3476 | /* 64-bit shift. */ | |
3477 | size = 3; | |
3478 | } else { | |
3479 | size = 2; | |
3480 | while ((insn & (1 << (size + 19))) == 0) | |
3481 | size--; | |
3482 | } | |
3483 | shift = (insn >> 16) & ((1 << (3 + size)) - 1); | |
3484 | /* To avoid excessive dumplication of ops we implement shift | |
3485 | by immediate using the variable shift operations. */ | |
3486 | if (op < 8) { | |
3487 | /* Shift by immediate: | |
3488 | VSHR, VSRA, VRSHR, VRSRA, VSRI, VSHL, VQSHL, VQSHLU. */ | |
3489 | /* Right shifts are encoded as N - shift, where N is the | |
3490 | element size in bits. */ | |
3491 | if (op <= 4) | |
3492 | shift = shift - (1 << (size + 3)); | |
3493 | else | |
3494 | shift++; | |
3495 | if (size == 3) { | |
3496 | count = q + 1; | |
3497 | } else { | |
3498 | count = q ? 4: 2; | |
3499 | } | |
3500 | switch (size) { | |
3501 | case 0: | |
3502 | imm = (uint8_t) shift; | |
3503 | imm |= imm << 8; | |
3504 | imm |= imm << 16; | |
3505 | break; | |
3506 | case 1: | |
3507 | imm = (uint16_t) shift; | |
3508 | imm |= imm << 16; | |
3509 | break; | |
3510 | case 2: | |
3511 | case 3: | |
3512 | imm = shift; | |
3513 | break; | |
3514 | default: | |
3515 | abort(); | |
3516 | } | |
3517 | ||
3518 | for (pass = 0; pass < count; pass++) { | |
3519 | if (size < 3) { | |
3520 | /* Operands in T0 and T1. */ | |
3521 | gen_op_movl_T1_im(imm); | |
3522 | NEON_GET_REG(T0, rm, pass); | |
2c0262af | 3523 | } else { |
9ee6e8bb PB |
3524 | /* Operands in {T0, T1} and env->vfp.scratch. */ |
3525 | gen_op_movl_T0_im(imm); | |
3526 | gen_neon_movl_scratch_T0(0); | |
3527 | gen_op_movl_T0_im((int32_t)imm >> 31); | |
3528 | gen_neon_movl_scratch_T0(1); | |
3529 | NEON_GET_REG(T0, rm, pass * 2); | |
3530 | NEON_GET_REG(T1, rm, pass * 2 + 1); | |
3531 | } | |
3532 | ||
3533 | if (gen_neon_shift_im[op][u][size] == NULL) | |
3534 | return 1; | |
3535 | gen_neon_shift_im[op][u][size](); | |
3536 | ||
3537 | if (op == 1 || op == 3) { | |
3538 | /* Accumulate. */ | |
3539 | if (size == 3) { | |
3540 | gen_neon_movl_scratch_T0(0); | |
3541 | gen_neon_movl_scratch_T1(1); | |
3542 | NEON_GET_REG(T0, rd, pass * 2); | |
3543 | NEON_GET_REG(T1, rd, pass * 2 + 1); | |
3544 | gen_op_neon_addl_u64(); | |
3545 | } else { | |
3546 | NEON_GET_REG(T1, rd, pass); | |
3547 | gen_neon_add(size); | |
99c475ab | 3548 | } |
9ee6e8bb PB |
3549 | } else if (op == 4 || (op == 5 && u)) { |
3550 | /* Insert */ | |
3551 | if (size == 3) { | |
3552 | cpu_abort(env, "VS[LR]I.64 not implemented"); | |
3553 | } | |
3554 | switch (size) { | |
3555 | case 0: | |
3556 | if (op == 4) | |
3557 | imm = 0xff >> -shift; | |
3558 | else | |
3559 | imm = (uint8_t)(0xff << shift); | |
3560 | imm |= imm << 8; | |
3561 | imm |= imm << 16; | |
3562 | break; | |
3563 | case 1: | |
3564 | if (op == 4) | |
3565 | imm = 0xffff >> -shift; | |
3566 | else | |
3567 | imm = (uint16_t)(0xffff << shift); | |
3568 | imm |= imm << 16; | |
3569 | break; | |
3570 | case 2: | |
3571 | if (op == 4) | |
3572 | imm = 0xffffffffu >> -shift; | |
3573 | else | |
3574 | imm = 0xffffffffu << shift; | |
3575 | break; | |
3576 | default: | |
3577 | abort(); | |
3578 | } | |
3579 | NEON_GET_REG(T1, rd, pass); | |
3580 | gen_op_movl_T2_im(imm); | |
3581 | gen_op_neon_bsl(); | |
2c0262af | 3582 | } |
9ee6e8bb PB |
3583 | if (size == 3) { |
3584 | NEON_SET_REG(T0, rd, pass * 2); | |
3585 | NEON_SET_REG(T1, rd, pass * 2 + 1); | |
3586 | } else { | |
3587 | NEON_SET_REG(T0, rd, pass); | |
3588 | } | |
3589 | } /* for pass */ | |
3590 | } else if (op < 10) { | |
3591 | /* Shift by immedaiate and narrow: | |
3592 | VSHRN, VRSHRN, VQSHRN, VQRSHRN. */ | |
3593 | shift = shift - (1 << (size + 3)); | |
3594 | size++; | |
3595 | if (size == 3) { | |
3596 | count = q + 1; | |
2c0262af | 3597 | } else { |
9ee6e8bb PB |
3598 | count = q ? 4: 2; |
3599 | } | |
3600 | switch (size) { | |
3601 | case 1: | |
3602 | imm = (uint16_t) shift; | |
3603 | imm |= imm << 16; | |
3604 | break; | |
3605 | case 2: | |
3606 | case 3: | |
3607 | imm = shift; | |
3608 | break; | |
3609 | default: | |
3610 | abort(); | |
3611 | } | |
3612 | ||
3613 | /* Processing MSB first means we need to do less shuffling at | |
3614 | the end. */ | |
3615 | for (pass = count - 1; pass >= 0; pass--) { | |
3616 | /* Avoid clobbering the second operand before it has been | |
3617 | written. */ | |
3618 | n = pass; | |
3619 | if (rd == rm) | |
3620 | n ^= (count - 1); | |
3621 | else | |
3622 | n = pass; | |
3623 | ||
3624 | if (size < 3) { | |
3625 | /* Operands in T0 and T1. */ | |
3626 | gen_op_movl_T1_im(imm); | |
3627 | NEON_GET_REG(T0, rm, n); | |
2c0262af | 3628 | } else { |
9ee6e8bb PB |
3629 | /* Operands in {T0, T1} and env->vfp.scratch. */ |
3630 | gen_op_movl_T0_im(imm); | |
3631 | gen_neon_movl_scratch_T0(0); | |
3632 | gen_op_movl_T0_im((int32_t)imm >> 31); | |
3633 | gen_neon_movl_scratch_T0(1); | |
3634 | NEON_GET_REG(T0, rm, n * 2); | |
3635 | NEON_GET_REG(T0, rm, n * 2 + 1); | |
3636 | } | |
3b46e624 | 3637 | |
9ee6e8bb PB |
3638 | gen_neon_shift_im_narrow[q][u][size - 1](); |
3639 | ||
3640 | if (size < 3 && (pass & 1) == 0) { | |
3641 | gen_neon_movl_scratch_T0(0); | |
3642 | } else { | |
3643 | uint32_t offset; | |
3644 | ||
3645 | if (size < 3) | |
3646 | gen_neon_movl_T1_scratch(0); | |
3647 | ||
3648 | if (op == 8 && !u) { | |
3649 | gen_neon_narrow[size - 1](); | |
99c475ab | 3650 | } else { |
9ee6e8bb PB |
3651 | if (op == 8) |
3652 | gen_neon_narrow_sats[size - 2](); | |
3653 | else | |
3654 | gen_neon_narrow_satu[size - 1](); | |
99c475ab | 3655 | } |
9ee6e8bb PB |
3656 | if (size == 3) |
3657 | offset = neon_reg_offset(rd, n); | |
3658 | else | |
3659 | offset = neon_reg_offset(rd, n >> 1); | |
3660 | gen_op_neon_setreg_T0(offset); | |
3661 | } | |
3662 | } /* for pass */ | |
3663 | } else if (op == 10) { | |
3664 | /* VSHLL */ | |
3665 | if (q) | |
3666 | return 1; | |
3667 | for (pass = 0; pass < 2; pass++) { | |
3668 | /* Avoid clobbering the input operand. */ | |
3669 | if (rd == rm) | |
3670 | n = 1 - pass; | |
3671 | else | |
3672 | n = pass; | |
3673 | ||
3674 | NEON_GET_REG(T0, rm, n); | |
3675 | GEN_NEON_INTEGER_OP(widen); | |
3676 | if (shift != 0) { | |
3677 | /* The shift is less than the width of the source | |
3678 | type, so in some cases we can just | |
3679 | shift the whole register. */ | |
3680 | if (size == 1 || (size == 0 && u)) { | |
3681 | gen_op_shll_T0_im(shift); | |
3682 | gen_op_shll_T1_im(shift); | |
3683 | } else { | |
3684 | switch (size) { | |
3685 | case 0: gen_op_neon_shll_u16(shift); break; | |
3686 | case 2: gen_op_neon_shll_u64(shift); break; | |
3687 | default: abort(); | |
3688 | } | |
3689 | } | |
3690 | } | |
3691 | NEON_SET_REG(T0, rd, n * 2); | |
3692 | NEON_SET_REG(T1, rd, n * 2 + 1); | |
3693 | } | |
3694 | } else if (op == 15 || op == 16) { | |
3695 | /* VCVT fixed-point. */ | |
3696 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
3697 | gen_op_vfp_getreg_F0s(neon_reg_offset(rm, pass)); | |
3698 | if (op & 1) { | |
3699 | if (u) | |
3700 | gen_op_vfp_ultos(shift); | |
3701 | else | |
3702 | gen_op_vfp_sltos(shift); | |
3703 | } else { | |
3704 | if (u) | |
3705 | gen_op_vfp_touls(shift); | |
3706 | else | |
3707 | gen_op_vfp_tosls(shift); | |
2c0262af | 3708 | } |
9ee6e8bb | 3709 | gen_op_vfp_setreg_F0s(neon_reg_offset(rd, pass)); |
2c0262af FB |
3710 | } |
3711 | } else { | |
9ee6e8bb PB |
3712 | return 1; |
3713 | } | |
3714 | } else { /* (insn & 0x00380080) == 0 */ | |
3715 | int invert; | |
3716 | ||
3717 | op = (insn >> 8) & 0xf; | |
3718 | /* One register and immediate. */ | |
3719 | imm = (u << 7) | ((insn >> 12) & 0x70) | (insn & 0xf); | |
3720 | invert = (insn & (1 << 5)) != 0; | |
3721 | switch (op) { | |
3722 | case 0: case 1: | |
3723 | /* no-op */ | |
3724 | break; | |
3725 | case 2: case 3: | |
3726 | imm <<= 8; | |
3727 | break; | |
3728 | case 4: case 5: | |
3729 | imm <<= 16; | |
3730 | break; | |
3731 | case 6: case 7: | |
3732 | imm <<= 24; | |
3733 | break; | |
3734 | case 8: case 9: | |
3735 | imm |= imm << 16; | |
3736 | break; | |
3737 | case 10: case 11: | |
3738 | imm = (imm << 8) | (imm << 24); | |
3739 | break; | |
3740 | case 12: | |
3741 | imm = (imm < 8) | 0xff; | |
3742 | break; | |
3743 | case 13: | |
3744 | imm = (imm << 16) | 0xffff; | |
3745 | break; | |
3746 | case 14: | |
3747 | imm |= (imm << 8) | (imm << 16) | (imm << 24); | |
3748 | if (invert) | |
3749 | imm = ~imm; | |
3750 | break; | |
3751 | case 15: | |
3752 | imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19) | |
3753 | | ((imm & 0x40) ? (0x1f << 25) : (1 << 30)); | |
3754 | break; | |
3755 | } | |
3756 | if (invert) | |
3757 | imm = ~imm; | |
3758 | ||
3759 | if (op != 14 || !invert) | |
3760 | gen_op_movl_T1_im(imm); | |
3761 | ||
3762 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
3763 | if (op & 1 && op < 12) { | |
3764 | NEON_GET_REG(T0, rd, pass); | |
3765 | if (invert) { | |
3766 | /* The immediate value has already been inverted, so | |
3767 | BIC becomes AND. */ | |
3768 | gen_op_andl_T0_T1(); | |
3769 | } else { | |
3770 | gen_op_orl_T0_T1(); | |
3771 | } | |
3772 | NEON_SET_REG(T0, rd, pass); | |
3773 | } else { | |
3774 | if (op == 14 && invert) { | |
3775 | uint32_t tmp; | |
3776 | tmp = 0; | |
3777 | for (n = 0; n < 4; n++) { | |
3778 | if (imm & (1 << (n + (pass & 1) * 4))) | |
3779 | tmp |= 0xff << (n * 8); | |
3780 | } | |
3781 | gen_op_movl_T1_im(tmp); | |
3782 | } | |
3783 | /* VMOV, VMVN. */ | |
3784 | NEON_SET_REG(T1, rd, pass); | |
3785 | } | |
3786 | } | |
3787 | } | |
3788 | } else { /* (insn & 0x00800010 == 0x00800010) */ | |
3789 | if (size != 3) { | |
3790 | op = (insn >> 8) & 0xf; | |
3791 | if ((insn & (1 << 6)) == 0) { | |
3792 | /* Three registers of different lengths. */ | |
3793 | int src1_wide; | |
3794 | int src2_wide; | |
3795 | int prewiden; | |
3796 | /* prewiden, src1_wide, src2_wide */ | |
3797 | static const int neon_3reg_wide[16][3] = { | |
3798 | {1, 0, 0}, /* VADDL */ | |
3799 | {1, 1, 0}, /* VADDW */ | |
3800 | {1, 0, 0}, /* VSUBL */ | |
3801 | {1, 1, 0}, /* VSUBW */ | |
3802 | {0, 1, 1}, /* VADDHN */ | |
3803 | {0, 0, 0}, /* VABAL */ | |
3804 | {0, 1, 1}, /* VSUBHN */ | |
3805 | {0, 0, 0}, /* VABDL */ | |
3806 | {0, 0, 0}, /* VMLAL */ | |
3807 | {0, 0, 0}, /* VQDMLAL */ | |
3808 | {0, 0, 0}, /* VMLSL */ | |
3809 | {0, 0, 0}, /* VQDMLSL */ | |
3810 | {0, 0, 0}, /* Integer VMULL */ | |
3811 | {0, 0, 0}, /* VQDMULL */ | |
3812 | {0, 0, 0} /* Polynomial VMULL */ | |
3813 | }; | |
3814 | ||
3815 | prewiden = neon_3reg_wide[op][0]; | |
3816 | src1_wide = neon_3reg_wide[op][1]; | |
3817 | src2_wide = neon_3reg_wide[op][2]; | |
3818 | ||
3819 | /* Avoid overlapping operands. Wide source operands are | |
3820 | always aligned so will never overlap with wide | |
3821 | destinations in problematic ways. */ | |
3822 | if (rd == rm) { | |
3823 | NEON_GET_REG(T2, rm, 1); | |
3824 | } else if (rd == rn) { | |
3825 | NEON_GET_REG(T2, rn, 1); | |
3826 | } | |
3827 | for (pass = 0; pass < 2; pass++) { | |
3828 | /* Load the second operand into env->vfp.scratch. | |
3829 | Also widen narrow operands. */ | |
3830 | if (pass == 1 && rd == rm) { | |
3831 | if (prewiden) { | |
3832 | gen_op_movl_T0_T2(); | |
3833 | } else { | |
3834 | gen_op_movl_T1_T2(); | |
3835 | } | |
3836 | } else { | |
3837 | if (src2_wide) { | |
3838 | NEON_GET_REG(T0, rm, pass * 2); | |
3839 | NEON_GET_REG(T1, rm, pass * 2 + 1); | |
3840 | } else { | |
3841 | if (prewiden) { | |
3842 | NEON_GET_REG(T0, rm, pass); | |
3843 | } else { | |
3844 | NEON_GET_REG(T1, rm, pass); | |
3845 | } | |
3846 | } | |
3847 | } | |
3848 | if (prewiden && !src2_wide) { | |
3849 | GEN_NEON_INTEGER_OP(widen); | |
3850 | } | |
3851 | if (prewiden || src2_wide) { | |
3852 | gen_neon_movl_scratch_T0(0); | |
3853 | gen_neon_movl_scratch_T1(1); | |
3854 | } | |
3855 | ||
3856 | /* Load the first operand. */ | |
3857 | if (pass == 1 && rd == rn) { | |
3858 | gen_op_movl_T0_T2(); | |
3859 | } else { | |
3860 | if (src1_wide) { | |
3861 | NEON_GET_REG(T0, rn, pass * 2); | |
3862 | NEON_GET_REG(T1, rn, pass * 2 + 1); | |
3863 | } else { | |
3864 | NEON_GET_REG(T0, rn, pass); | |
3865 | } | |
3866 | } | |
3867 | if (prewiden && !src1_wide) { | |
3868 | GEN_NEON_INTEGER_OP(widen); | |
3869 | } | |
3870 | switch (op) { | |
3871 | case 0: case 1: case 4: /* VADDL, VADDW, VADDHN, VRADDHN */ | |
3872 | switch (size) { | |
3873 | case 0: gen_op_neon_addl_u16(); break; | |
3874 | case 1: gen_op_neon_addl_u32(); break; | |
3875 | case 2: gen_op_neon_addl_u64(); break; | |
3876 | default: abort(); | |
3877 | } | |
3878 | break; | |
3879 | case 2: case 3: case 6: /* VSUBL, VSUBW, VSUBHL, VRSUBHL */ | |
3880 | switch (size) { | |
3881 | case 0: gen_op_neon_subl_u16(); break; | |
3882 | case 1: gen_op_neon_subl_u32(); break; | |
3883 | case 2: gen_op_neon_subl_u64(); break; | |
3884 | default: abort(); | |
3885 | } | |
3886 | break; | |
3887 | case 5: case 7: /* VABAL, VABDL */ | |
3888 | switch ((size << 1) | u) { | |
3889 | case 0: gen_op_neon_abdl_s16(); break; | |
3890 | case 1: gen_op_neon_abdl_u16(); break; | |
3891 | case 2: gen_op_neon_abdl_s32(); break; | |
3892 | case 3: gen_op_neon_abdl_u32(); break; | |
3893 | case 4: gen_op_neon_abdl_s64(); break; | |
3894 | case 5: gen_op_neon_abdl_u64(); break; | |
3895 | default: abort(); | |
3896 | } | |
3897 | break; | |
3898 | case 8: case 9: case 10: case 11: case 12: case 13: | |
3899 | /* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */ | |
3900 | switch ((size << 1) | u) { | |
3901 | case 0: gen_op_neon_mull_s8(); break; | |
3902 | case 1: gen_op_neon_mull_u8(); break; | |
3903 | case 2: gen_op_neon_mull_s16(); break; | |
3904 | case 3: gen_op_neon_mull_u16(); break; | |
3905 | case 4: gen_op_imull_T0_T1(); break; | |
3906 | case 5: gen_op_mull_T0_T1(); break; | |
3907 | default: abort(); | |
3908 | } | |
3909 | break; | |
3910 | case 14: /* Polynomial VMULL */ | |
3911 | cpu_abort(env, "Polynomial VMULL not implemented"); | |
3912 | ||
3913 | default: /* 15 is RESERVED. */ | |
3914 | return 1; | |
3915 | } | |
3916 | if (op == 5 || op == 13 || (op >= 8 && op <= 11)) { | |
3917 | /* Accumulate. */ | |
3918 | if (op == 10 || op == 11) { | |
3919 | switch (size) { | |
3920 | case 0: gen_op_neon_negl_u16(); break; | |
3921 | case 1: gen_op_neon_negl_u32(); break; | |
3922 | case 2: gen_op_neon_negl_u64(); break; | |
3923 | default: abort(); | |
3924 | } | |
3925 | } | |
3926 | ||
3927 | gen_neon_movl_scratch_T0(0); | |
3928 | gen_neon_movl_scratch_T1(1); | |
3929 | ||
3930 | if (op != 13) { | |
3931 | NEON_GET_REG(T0, rd, pass * 2); | |
3932 | NEON_GET_REG(T1, rd, pass * 2 + 1); | |
3933 | } | |
3934 | ||
3935 | switch (op) { | |
3936 | case 5: case 8: case 10: /* VABAL, VMLAL, VMLSL */ | |
3937 | switch (size) { | |
3938 | case 0: gen_op_neon_addl_u16(); break; | |
3939 | case 1: gen_op_neon_addl_u32(); break; | |
3940 | case 2: gen_op_neon_addl_u64(); break; | |
3941 | default: abort(); | |
3942 | } | |
3943 | break; | |
3944 | case 9: case 11: /* VQDMLAL, VQDMLSL */ | |
3945 | switch (size) { | |
3946 | case 1: gen_op_neon_addl_saturate_s32(); break; | |
3947 | case 2: gen_op_neon_addl_saturate_s64(); break; | |
3948 | default: abort(); | |
3949 | } | |
3950 | /* Fall through. */ | |
3951 | case 13: /* VQDMULL */ | |
3952 | switch (size) { | |
3953 | case 1: gen_op_neon_addl_saturate_s32(); break; | |
3954 | case 2: gen_op_neon_addl_saturate_s64(); break; | |
3955 | default: abort(); | |
3956 | } | |
3957 | break; | |
3958 | default: | |
3959 | abort(); | |
3960 | } | |
3961 | NEON_SET_REG(T0, rd, pass * 2); | |
3962 | NEON_SET_REG(T1, rd, pass * 2 + 1); | |
3963 | } else if (op == 4 || op == 6) { | |
3964 | /* Narrowing operation. */ | |
3965 | if (u) { | |
3966 | switch (size) { | |
3967 | case 0: gen_op_neon_narrow_high_u8(); break; | |
3968 | case 1: gen_op_neon_narrow_high_u16(); break; | |
3969 | case 2: gen_op_movl_T0_T1(); break; | |
3970 | default: abort(); | |
3971 | } | |
3972 | } else { | |
3973 | switch (size) { | |
3974 | case 0: gen_op_neon_narrow_high_round_u8(); break; | |
3975 | case 1: gen_op_neon_narrow_high_round_u16(); break; | |
3976 | case 2: gen_op_neon_narrow_high_round_u32(); break; | |
3977 | default: abort(); | |
3978 | } | |
3979 | } | |
3980 | NEON_SET_REG(T0, rd, pass); | |
3981 | } else { | |
3982 | /* Write back the result. */ | |
3983 | NEON_SET_REG(T0, rd, pass * 2); | |
3984 | NEON_SET_REG(T1, rd, pass * 2 + 1); | |
3985 | } | |
3986 | } | |
3987 | } else { | |
3988 | /* Two registers and a scalar. */ | |
3989 | switch (op) { | |
3990 | case 0: /* Integer VMLA scalar */ | |
3991 | case 1: /* Float VMLA scalar */ | |
3992 | case 4: /* Integer VMLS scalar */ | |
3993 | case 5: /* Floating point VMLS scalar */ | |
3994 | case 8: /* Integer VMUL scalar */ | |
3995 | case 9: /* Floating point VMUL scalar */ | |
3996 | case 12: /* VQDMULH scalar */ | |
3997 | case 13: /* VQRDMULH scalar */ | |
3998 | gen_neon_get_scalar(size, rm); | |
3999 | gen_op_movl_T2_T0(); | |
4000 | for (pass = 0; pass < (u ? 4 : 2); pass++) { | |
4001 | if (pass != 0) | |
4002 | gen_op_movl_T0_T2(); | |
4003 | NEON_GET_REG(T1, rn, pass); | |
4004 | if (op == 12) { | |
4005 | if (size == 1) { | |
4006 | gen_op_neon_qdmulh_s16(); | |
4007 | } else { | |
4008 | gen_op_neon_qdmulh_s32(); | |
4009 | } | |
4010 | } else if (op == 13) { | |
4011 | if (size == 1) { | |
4012 | gen_op_neon_qrdmulh_s16(); | |
4013 | } else { | |
4014 | gen_op_neon_qrdmulh_s32(); | |
4015 | } | |
4016 | } else if (op & 1) { | |
4017 | gen_op_neon_mul_f32(); | |
4018 | } else { | |
4019 | switch (size) { | |
4020 | case 0: gen_op_neon_mul_u8(); break; | |
4021 | case 1: gen_op_neon_mul_u16(); break; | |
4022 | case 2: gen_op_mul_T0_T1(); break; | |
4023 | default: return 1; | |
4024 | } | |
4025 | } | |
4026 | if (op < 8) { | |
4027 | /* Accumulate. */ | |
4028 | NEON_GET_REG(T1, rd, pass); | |
4029 | switch (op) { | |
4030 | case 0: | |
4031 | gen_neon_add(size); | |
4032 | break; | |
4033 | case 1: | |
4034 | gen_op_neon_add_f32(); | |
4035 | break; | |
4036 | case 4: | |
4037 | switch (size) { | |
4038 | case 0: gen_op_neon_rsb_u8(); break; | |
4039 | case 1: gen_op_neon_rsb_u16(); break; | |
4040 | case 2: gen_op_rsbl_T0_T1(); break; | |
4041 | default: return 1; | |
4042 | } | |
4043 | break; | |
4044 | case 5: | |
4045 | gen_op_neon_rsb_f32(); | |
4046 | break; | |
4047 | default: | |
4048 | abort(); | |
4049 | } | |
4050 | } | |
4051 | NEON_SET_REG(T0, rd, pass); | |
4052 | } | |
4053 | break; | |
4054 | case 2: /* VMLAL sclar */ | |
4055 | case 3: /* VQDMLAL scalar */ | |
4056 | case 6: /* VMLSL scalar */ | |
4057 | case 7: /* VQDMLSL scalar */ | |
4058 | case 10: /* VMULL scalar */ | |
4059 | case 11: /* VQDMULL scalar */ | |
4060 | if (rd == rn) { | |
4061 | /* Save overlapping operands before they are | |
4062 | clobbered. */ | |
4063 | NEON_GET_REG(T0, rn, 1); | |
4064 | gen_neon_movl_scratch_T0(2); | |
4065 | } | |
4066 | gen_neon_get_scalar(size, rm); | |
4067 | gen_op_movl_T2_T0(); | |
4068 | for (pass = 0; pass < 2; pass++) { | |
4069 | if (pass != 0) { | |
4070 | gen_op_movl_T0_T2(); | |
4071 | } | |
4072 | if (pass != 0 && rd == rn) { | |
4073 | gen_neon_movl_T1_scratch(2); | |
4074 | } else { | |
4075 | NEON_GET_REG(T1, rn, pass); | |
4076 | } | |
4077 | switch ((size << 1) | u) { | |
4078 | case 0: gen_op_neon_mull_s8(); break; | |
4079 | case 1: gen_op_neon_mull_u8(); break; | |
4080 | case 2: gen_op_neon_mull_s16(); break; | |
4081 | case 3: gen_op_neon_mull_u16(); break; | |
4082 | case 4: gen_op_imull_T0_T1(); break; | |
4083 | case 5: gen_op_mull_T0_T1(); break; | |
4084 | default: abort(); | |
4085 | } | |
4086 | if (op == 6 || op == 7) { | |
4087 | switch (size) { | |
4088 | case 0: gen_op_neon_negl_u16(); break; | |
4089 | case 1: gen_op_neon_negl_u32(); break; | |
4090 | case 2: gen_op_neon_negl_u64(); break; | |
4091 | default: abort(); | |
4092 | } | |
4093 | } | |
4094 | gen_neon_movl_scratch_T0(0); | |
4095 | gen_neon_movl_scratch_T1(1); | |
4096 | NEON_GET_REG(T0, rd, pass * 2); | |
4097 | NEON_GET_REG(T1, rd, pass * 2 + 1); | |
4098 | switch (op) { | |
4099 | case 2: case 6: | |
4100 | switch (size) { | |
4101 | case 0: gen_op_neon_addl_u16(); break; | |
4102 | case 1: gen_op_neon_addl_u32(); break; | |
4103 | case 2: gen_op_neon_addl_u64(); break; | |
4104 | default: abort(); | |
4105 | } | |
4106 | break; | |
4107 | case 3: case 7: | |
4108 | switch (size) { | |
4109 | case 1: | |
4110 | gen_op_neon_addl_saturate_s32(); | |
4111 | gen_op_neon_addl_saturate_s32(); | |
4112 | break; | |
4113 | case 2: | |
4114 | gen_op_neon_addl_saturate_s64(); | |
4115 | gen_op_neon_addl_saturate_s64(); | |
4116 | break; | |
4117 | default: abort(); | |
4118 | } | |
4119 | break; | |
4120 | case 10: | |
4121 | /* no-op */ | |
4122 | break; | |
4123 | case 11: | |
4124 | switch (size) { | |
4125 | case 1: gen_op_neon_addl_saturate_s32(); break; | |
4126 | case 2: gen_op_neon_addl_saturate_s64(); break; | |
4127 | default: abort(); | |
4128 | } | |
4129 | break; | |
4130 | default: | |
4131 | abort(); | |
4132 | } | |
4133 | NEON_SET_REG(T0, rd, pass * 2); | |
4134 | NEON_SET_REG(T1, rd, pass * 2 + 1); | |
4135 | } | |
4136 | break; | |
4137 | default: /* 14 and 15 are RESERVED */ | |
4138 | return 1; | |
4139 | } | |
4140 | } | |
4141 | } else { /* size == 3 */ | |
4142 | if (!u) { | |
4143 | /* Extract. */ | |
4144 | int reg; | |
4145 | imm = (insn >> 8) & 0xf; | |
4146 | reg = rn; | |
4147 | count = q ? 4 : 2; | |
4148 | n = imm >> 2; | |
4149 | NEON_GET_REG(T0, reg, n); | |
4150 | for (pass = 0; pass < count; pass++) { | |
4151 | n++; | |
4152 | if (n > count) { | |
4153 | reg = rm; | |
4154 | n -= count; | |
4155 | } | |
4156 | if (imm & 3) { | |
4157 | NEON_GET_REG(T1, reg, n); | |
4158 | gen_op_neon_extract((insn << 3) & 0x1f); | |
4159 | } | |
4160 | /* ??? This is broken if rd and rm overlap */ | |
4161 | NEON_SET_REG(T0, rd, pass); | |
4162 | if (imm & 3) { | |
4163 | gen_op_movl_T0_T1(); | |
4164 | } else { | |
4165 | NEON_GET_REG(T0, reg, n); | |
4166 | } | |
4167 | } | |
4168 | } else if ((insn & (1 << 11)) == 0) { | |
4169 | /* Two register misc. */ | |
4170 | op = ((insn >> 12) & 0x30) | ((insn >> 7) & 0xf); | |
4171 | size = (insn >> 18) & 3; | |
4172 | switch (op) { | |
4173 | case 0: /* VREV64 */ | |
4174 | if (size == 3) | |
4175 | return 1; | |
4176 | for (pass = 0; pass < (q ? 2 : 1); pass++) { | |
4177 | NEON_GET_REG(T0, rm, pass * 2); | |
4178 | NEON_GET_REG(T1, rm, pass * 2 + 1); | |
4179 | switch (size) { | |
4180 | case 0: gen_op_rev_T0(); break; | |
4181 | case 1: gen_op_revh_T0(); break; | |
4182 | case 2: /* no-op */ break; | |
4183 | default: abort(); | |
4184 | } | |
4185 | NEON_SET_REG(T0, rd, pass * 2 + 1); | |
4186 | if (size == 2) { | |
4187 | NEON_SET_REG(T1, rd, pass * 2); | |
4188 | } else { | |
4189 | gen_op_movl_T0_T1(); | |
4190 | switch (size) { | |
4191 | case 0: gen_op_rev_T0(); break; | |
4192 | case 1: gen_op_revh_T0(); break; | |
4193 | default: abort(); | |
4194 | } | |
4195 | NEON_SET_REG(T0, rd, pass * 2); | |
4196 | } | |
4197 | } | |
4198 | break; | |
4199 | case 4: case 5: /* VPADDL */ | |
4200 | case 12: case 13: /* VPADAL */ | |
4201 | if (size < 2) | |
4202 | goto elementwise; | |
4203 | if (size == 3) | |
4204 | return 1; | |
4205 | for (pass = 0; pass < (q ? 2 : 1); pass++) { | |
4206 | NEON_GET_REG(T0, rm, pass * 2); | |
4207 | NEON_GET_REG(T1, rm, pass * 2 + 1); | |
4208 | if (op & 1) | |
4209 | gen_op_neon_paddl_u32(); | |
4210 | else | |
4211 | gen_op_neon_paddl_s32(); | |
4212 | if (op >= 12) { | |
4213 | /* Accumulate. */ | |
4214 | gen_neon_movl_scratch_T0(0); | |
4215 | gen_neon_movl_scratch_T1(1); | |
4216 | ||
4217 | NEON_GET_REG(T0, rd, pass * 2); | |
4218 | NEON_GET_REG(T1, rd, pass * 2 + 1); | |
4219 | gen_op_neon_addl_u64(); | |
4220 | } | |
4221 | NEON_SET_REG(T0, rd, pass * 2); | |
4222 | NEON_SET_REG(T1, rd, pass * 2 + 1); | |
4223 | } | |
4224 | break; | |
4225 | case 33: /* VTRN */ | |
4226 | if (size == 2) { | |
4227 | for (n = 0; n < (q ? 4 : 2); n += 2) { | |
4228 | NEON_GET_REG(T0, rm, n); | |
4229 | NEON_GET_REG(T1, rd, n + 1); | |
4230 | NEON_SET_REG(T1, rm, n); | |
4231 | NEON_SET_REG(T0, rd, n + 1); | |
4232 | } | |
4233 | } else { | |
4234 | goto elementwise; | |
4235 | } | |
4236 | break; | |
4237 | case 34: /* VUZP */ | |
4238 | /* Reg Before After | |
4239 | Rd A3 A2 A1 A0 B2 B0 A2 A0 | |
4240 | Rm B3 B2 B1 B0 B3 B1 A3 A1 | |
4241 | */ | |
4242 | if (size == 3) | |
4243 | return 1; | |
4244 | gen_neon_unzip(rd, q, 0, size); | |
4245 | gen_neon_unzip(rm, q, 4, size); | |
4246 | if (q) { | |
4247 | static int unzip_order_q[8] = | |
4248 | {0, 2, 4, 6, 1, 3, 5, 7}; | |
4249 | for (n = 0; n < 8; n++) { | |
4250 | int reg = (n < 4) ? rd : rm; | |
4251 | gen_neon_movl_T0_scratch(unzip_order_q[n]); | |
4252 | NEON_SET_REG(T0, reg, n % 4); | |
4253 | } | |
4254 | } else { | |
4255 | static int unzip_order[4] = | |
4256 | {0, 4, 1, 5}; | |
4257 | for (n = 0; n < 4; n++) { | |
4258 | int reg = (n < 2) ? rd : rm; | |
4259 | gen_neon_movl_T0_scratch(unzip_order[n]); | |
4260 | NEON_SET_REG(T0, reg, n % 2); | |
4261 | } | |
4262 | } | |
4263 | break; | |
4264 | case 35: /* VZIP */ | |
4265 | /* Reg Before After | |
4266 | Rd A3 A2 A1 A0 B1 A1 B0 A0 | |
4267 | Rm B3 B2 B1 B0 B3 A3 B2 A2 | |
4268 | */ | |
4269 | if (size == 3) | |
4270 | return 1; | |
4271 | count = (q ? 4 : 2); | |
4272 | for (n = 0; n < count; n++) { | |
4273 | NEON_GET_REG(T0, rd, n); | |
4274 | NEON_GET_REG(T1, rd, n); | |
4275 | switch (size) { | |
4276 | case 0: gen_op_neon_zip_u8(); break; | |
4277 | case 1: gen_op_neon_zip_u16(); break; | |
4278 | case 2: /* no-op */; break; | |
4279 | default: abort(); | |
4280 | } | |
4281 | gen_neon_movl_scratch_T0(n * 2); | |
4282 | gen_neon_movl_scratch_T1(n * 2 + 1); | |
4283 | } | |
4284 | for (n = 0; n < count * 2; n++) { | |
4285 | int reg = (n < count) ? rd : rm; | |
4286 | gen_neon_movl_T0_scratch(n); | |
4287 | NEON_SET_REG(T0, reg, n % count); | |
4288 | } | |
4289 | break; | |
4290 | case 36: case 37: /* VMOVN, VQMOVUN, VQMOVN */ | |
4291 | for (pass = 0; pass < 2; pass++) { | |
4292 | if (rd == rm + 1) { | |
4293 | n = 1 - pass; | |
4294 | } else { | |
4295 | n = pass; | |
4296 | } | |
4297 | NEON_GET_REG(T0, rm, n * 2); | |
4298 | NEON_GET_REG(T1, rm, n * 2 + 1); | |
4299 | if (op == 36 && q == 0) { | |
4300 | switch (size) { | |
4301 | case 0: gen_op_neon_narrow_u8(); break; | |
4302 | case 1: gen_op_neon_narrow_u16(); break; | |
4303 | case 2: /* no-op */ break; | |
4304 | default: return 1; | |
4305 | } | |
4306 | } else if (q) { | |
4307 | switch (size) { | |
4308 | case 0: gen_op_neon_narrow_sat_u8(); break; | |
4309 | case 1: gen_op_neon_narrow_sat_u16(); break; | |
4310 | case 2: gen_op_neon_narrow_sat_u32(); break; | |
4311 | default: return 1; | |
4312 | } | |
4313 | } else { | |
4314 | switch (size) { | |
4315 | case 0: gen_op_neon_narrow_sat_s8(); break; | |
4316 | case 1: gen_op_neon_narrow_sat_s16(); break; | |
4317 | case 2: gen_op_neon_narrow_sat_s32(); break; | |
4318 | default: return 1; | |
4319 | } | |
4320 | } | |
4321 | NEON_SET_REG(T0, rd, n); | |
4322 | } | |
4323 | break; | |
4324 | case 38: /* VSHLL */ | |
4325 | if (q) | |
4326 | return 1; | |
4327 | if (rm == rd) { | |
4328 | NEON_GET_REG(T2, rm, 1); | |
4329 | } | |
4330 | for (pass = 0; pass < 2; pass++) { | |
4331 | if (pass == 1 && rm == rd) { | |
4332 | gen_op_movl_T0_T2(); | |
4333 | } else { | |
4334 | NEON_GET_REG(T0, rm, pass); | |
4335 | } | |
4336 | switch (size) { | |
4337 | case 0: gen_op_neon_widen_high_u8(); break; | |
4338 | case 1: gen_op_neon_widen_high_u16(); break; | |
4339 | case 2: | |
4340 | gen_op_movl_T1_T0(); | |
4341 | gen_op_movl_T0_im(0); | |
4342 | break; | |
4343 | default: return 1; | |
4344 | } | |
4345 | NEON_SET_REG(T0, rd, pass * 2); | |
4346 | NEON_SET_REG(T1, rd, pass * 2 + 1); | |
4347 | } | |
4348 | break; | |
4349 | default: | |
4350 | elementwise: | |
4351 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
4352 | if (op == 30 || op == 31 || op >= 58) { | |
4353 | gen_op_vfp_getreg_F0s(neon_reg_offset(rm, pass)); | |
4354 | } else { | |
4355 | NEON_GET_REG(T0, rm, pass); | |
4356 | } | |
4357 | switch (op) { | |
4358 | case 1: /* VREV32 */ | |
4359 | switch (size) { | |
4360 | case 0: gen_op_rev_T0(); break; | |
4361 | case 1: gen_op_revh_T0(); break; | |
4362 | default: return 1; | |
4363 | } | |
4364 | break; | |
4365 | case 2: /* VREV16 */ | |
4366 | if (size != 0) | |
4367 | return 1; | |
4368 | gen_op_rev16_T0(); | |
4369 | break; | |
4370 | case 4: case 5: /* VPADDL */ | |
4371 | case 12: case 13: /* VPADAL */ | |
4372 | switch ((size << 1) | (op & 1)) { | |
4373 | case 0: gen_op_neon_paddl_s8(); break; | |
4374 | case 1: gen_op_neon_paddl_u8(); break; | |
4375 | case 2: gen_op_neon_paddl_s16(); break; | |
4376 | case 3: gen_op_neon_paddl_u16(); break; | |
4377 | default: abort(); | |
4378 | } | |
4379 | if (op >= 12) { | |
4380 | /* Accumulate */ | |
4381 | NEON_GET_REG(T1, rd, pass); | |
4382 | switch (size) { | |
4383 | case 0: gen_op_neon_add_u16(); break; | |
4384 | case 1: gen_op_addl_T0_T1(); break; | |
4385 | default: abort(); | |
4386 | } | |
4387 | } | |
4388 | break; | |
4389 | case 8: /* CLS */ | |
4390 | switch (size) { | |
4391 | case 0: gen_op_neon_cls_s8(); break; | |
4392 | case 1: gen_op_neon_cls_s16(); break; | |
4393 | case 2: gen_op_neon_cls_s32(); break; | |
4394 | default: return 1; | |
4395 | } | |
4396 | break; | |
4397 | case 9: /* CLZ */ | |
4398 | switch (size) { | |
4399 | case 0: gen_op_neon_clz_u8(); break; | |
4400 | case 1: gen_op_neon_clz_u16(); break; | |
4401 | case 2: gen_op_clz_T0(); break; | |
4402 | default: return 1; | |
4403 | } | |
4404 | break; | |
4405 | case 10: /* CNT */ | |
4406 | if (size != 0) | |
4407 | return 1; | |
4408 | gen_op_neon_cnt_u8(); | |
4409 | break; | |
4410 | case 11: /* VNOT */ | |
4411 | if (size != 0) | |
4412 | return 1; | |
4413 | gen_op_notl_T0(); | |
4414 | break; | |
4415 | case 14: /* VQABS */ | |
4416 | switch (size) { | |
4417 | case 0: gen_op_neon_qabs_s8(); break; | |
4418 | case 1: gen_op_neon_qabs_s16(); break; | |
4419 | case 2: gen_op_neon_qabs_s32(); break; | |
4420 | default: return 1; | |
4421 | } | |
4422 | break; | |
4423 | case 15: /* VQNEG */ | |
4424 | switch (size) { | |
4425 | case 0: gen_op_neon_qneg_s8(); break; | |
4426 | case 1: gen_op_neon_qneg_s16(); break; | |
4427 | case 2: gen_op_neon_qneg_s32(); break; | |
4428 | default: return 1; | |
4429 | } | |
4430 | break; | |
4431 | case 16: case 19: /* VCGT #0, VCLE #0 */ | |
4432 | gen_op_movl_T1_im(0); | |
4433 | switch(size) { | |
4434 | case 0: gen_op_neon_cgt_s8(); break; | |
4435 | case 1: gen_op_neon_cgt_s16(); break; | |
4436 | case 2: gen_op_neon_cgt_s32(); break; | |
4437 | default: return 1; | |
4438 | } | |
4439 | if (op == 19) | |
4440 | gen_op_notl_T0(); | |
4441 | break; | |
4442 | case 17: case 20: /* VCGE #0, VCLT #0 */ | |
4443 | gen_op_movl_T1_im(0); | |
4444 | switch(size) { | |
4445 | case 0: gen_op_neon_cge_s8(); break; | |
4446 | case 1: gen_op_neon_cge_s16(); break; | |
4447 | case 2: gen_op_neon_cge_s32(); break; | |
4448 | default: return 1; | |
4449 | } | |
4450 | if (op == 20) | |
4451 | gen_op_notl_T0(); | |
4452 | break; | |
4453 | case 18: /* VCEQ #0 */ | |
4454 | gen_op_movl_T1_im(0); | |
4455 | switch(size) { | |
4456 | case 0: gen_op_neon_ceq_u8(); break; | |
4457 | case 1: gen_op_neon_ceq_u16(); break; | |
4458 | case 2: gen_op_neon_ceq_u32(); break; | |
4459 | default: return 1; | |
4460 | } | |
4461 | break; | |
4462 | case 22: /* VABS */ | |
4463 | switch(size) { | |
4464 | case 0: gen_op_neon_abs_s8(); break; | |
4465 | case 1: gen_op_neon_abs_s16(); break; | |
4466 | case 2: gen_op_neon_abs_s32(); break; | |
4467 | default: return 1; | |
4468 | } | |
4469 | break; | |
4470 | case 23: /* VNEG */ | |
4471 | gen_op_movl_T1_im(0); | |
4472 | switch(size) { | |
4473 | case 0: gen_op_neon_rsb_u8(); break; | |
4474 | case 1: gen_op_neon_rsb_u16(); break; | |
4475 | case 2: gen_op_rsbl_T0_T1(); break; | |
4476 | default: return 1; | |
4477 | } | |
4478 | break; | |
4479 | case 24: case 27: /* Float VCGT #0, Float VCLE #0 */ | |
4480 | gen_op_movl_T1_im(0); | |
4481 | gen_op_neon_cgt_f32(); | |
4482 | if (op == 27) | |
4483 | gen_op_notl_T0(); | |
4484 | break; | |
4485 | case 25: case 28: /* Float VCGE #0, Float VCLT #0 */ | |
4486 | gen_op_movl_T1_im(0); | |
4487 | gen_op_neon_cge_f32(); | |
4488 | if (op == 28) | |
4489 | gen_op_notl_T0(); | |
4490 | break; | |
4491 | case 26: /* Float VCEQ #0 */ | |
4492 | gen_op_movl_T1_im(0); | |
4493 | gen_op_neon_ceq_f32(); | |
4494 | break; | |
4495 | case 30: /* Float VABS */ | |
4496 | gen_op_vfp_abss(); | |
4497 | break; | |
4498 | case 31: /* Float VNEG */ | |
4499 | gen_op_vfp_negs(); | |
4500 | break; | |
4501 | case 32: /* VSWP */ | |
4502 | NEON_GET_REG(T1, rd, pass); | |
4503 | NEON_SET_REG(T1, rm, pass); | |
4504 | break; | |
4505 | case 33: /* VTRN */ | |
4506 | NEON_GET_REG(T1, rd, pass); | |
4507 | switch (size) { | |
4508 | case 0: gen_op_neon_trn_u8(); break; | |
4509 | case 1: gen_op_neon_trn_u16(); break; | |
4510 | case 2: abort(); | |
4511 | default: return 1; | |
4512 | } | |
4513 | NEON_SET_REG(T1, rm, pass); | |
4514 | break; | |
4515 | case 56: /* Integer VRECPE */ | |
4516 | gen_op_neon_recpe_u32(); | |
4517 | break; | |
4518 | case 57: /* Integer VRSQRTE */ | |
4519 | gen_op_neon_rsqrte_u32(); | |
4520 | break; | |
4521 | case 58: /* Float VRECPE */ | |
4522 | gen_op_neon_recpe_f32(); | |
4523 | break; | |
4524 | case 59: /* Float VRSQRTE */ | |
4525 | gen_op_neon_rsqrte_f32(); | |
4526 | break; | |
4527 | case 60: /* VCVT.F32.S32 */ | |
4528 | gen_op_vfp_tosizs(); | |
4529 | break; | |
4530 | case 61: /* VCVT.F32.U32 */ | |
4531 | gen_op_vfp_touizs(); | |
4532 | break; | |
4533 | case 62: /* VCVT.S32.F32 */ | |
4534 | gen_op_vfp_sitos(); | |
4535 | break; | |
4536 | case 63: /* VCVT.U32.F32 */ | |
4537 | gen_op_vfp_uitos(); | |
4538 | break; | |
4539 | default: | |
4540 | /* Reserved: 21, 29, 39-56 */ | |
4541 | return 1; | |
4542 | } | |
4543 | if (op == 30 || op == 31 || op >= 58) { | |
4544 | gen_op_vfp_setreg_F0s(neon_reg_offset(rm, pass)); | |
4545 | } else { | |
4546 | NEON_SET_REG(T0, rd, pass); | |
4547 | } | |
4548 | } | |
4549 | break; | |
4550 | } | |
4551 | } else if ((insn & (1 << 10)) == 0) { | |
4552 | /* VTBL, VTBX. */ | |
4553 | n = (insn >> 5) & 0x18; | |
4554 | NEON_GET_REG(T1, rm, 0); | |
4555 | if (insn & (1 << 6)) { | |
4556 | NEON_GET_REG(T0, rd, 0); | |
4557 | } else { | |
4558 | gen_op_movl_T0_im(0); | |
4559 | } | |
4560 | gen_op_neon_tbl(rn, n); | |
4561 | gen_op_movl_T2_T0(); | |
4562 | NEON_GET_REG(T1, rm, 1); | |
4563 | if (insn & (1 << 6)) { | |
4564 | NEON_GET_REG(T0, rd, 0); | |
4565 | } else { | |
4566 | gen_op_movl_T0_im(0); | |
4567 | } | |
4568 | gen_op_neon_tbl(rn, n); | |
4569 | NEON_SET_REG(T2, rd, 0); | |
4570 | NEON_SET_REG(T0, rd, 1); | |
4571 | } else if ((insn & 0x380) == 0) { | |
4572 | /* VDUP */ | |
4573 | if (insn & (1 << 19)) { | |
4574 | NEON_SET_REG(T0, rm, 1); | |
4575 | } else { | |
4576 | NEON_SET_REG(T0, rm, 0); | |
4577 | } | |
4578 | if (insn & (1 << 16)) { | |
4579 | gen_op_neon_dup_u8(((insn >> 17) & 3) * 8); | |
4580 | } else if (insn & (1 << 17)) { | |
4581 | if ((insn >> 18) & 1) | |
4582 | gen_op_neon_dup_high16(); | |
4583 | else | |
4584 | gen_op_neon_dup_low16(); | |
4585 | } | |
4586 | for (pass = 0; pass < (q ? 4 : 2); pass++) { | |
4587 | NEON_SET_REG(T0, rd, pass); | |
4588 | } | |
4589 | } else { | |
4590 | return 1; | |
4591 | } | |
4592 | } | |
4593 | } | |
4594 | return 0; | |
4595 | } | |
4596 | ||
4597 | static int disas_coproc_insn(CPUState * env, DisasContext *s, uint32_t insn) | |
4598 | { | |
4599 | int cpnum; | |
4600 | ||
4601 | cpnum = (insn >> 8) & 0xf; | |
4602 | if (arm_feature(env, ARM_FEATURE_XSCALE) | |
4603 | && ((env->cp15.c15_cpar ^ 0x3fff) & (1 << cpnum))) | |
4604 | return 1; | |
4605 | ||
4606 | switch (cpnum) { | |
4607 | case 0: | |
4608 | case 1: | |
4609 | if (arm_feature(env, ARM_FEATURE_IWMMXT)) { | |
4610 | return disas_iwmmxt_insn(env, s, insn); | |
4611 | } else if (arm_feature(env, ARM_FEATURE_XSCALE)) { | |
4612 | return disas_dsp_insn(env, s, insn); | |
4613 | } | |
4614 | return 1; | |
4615 | case 10: | |
4616 | case 11: | |
4617 | return disas_vfp_insn (env, s, insn); | |
4618 | case 15: | |
4619 | return disas_cp15_insn (env, s, insn); | |
4620 | default: | |
4621 | /* Unknown coprocessor. See if the board has hooked it. */ | |
4622 | return disas_cp_insn (env, s, insn); | |
4623 | } | |
4624 | } | |
4625 | ||
4626 | static void disas_arm_insn(CPUState * env, DisasContext *s) | |
4627 | { | |
4628 | unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh; | |
4629 | ||
4630 | insn = ldl_code(s->pc); | |
4631 | s->pc += 4; | |
4632 | ||
4633 | /* M variants do not implement ARM mode. */ | |
4634 | if (IS_M(env)) | |
4635 | goto illegal_op; | |
4636 | cond = insn >> 28; | |
4637 | if (cond == 0xf){ | |
4638 | /* Unconditional instructions. */ | |
4639 | if (((insn >> 25) & 7) == 1) { | |
4640 | /* NEON Data processing. */ | |
4641 | if (!arm_feature(env, ARM_FEATURE_NEON)) | |
4642 | goto illegal_op; | |
4643 | ||
4644 | if (disas_neon_data_insn(env, s, insn)) | |
4645 | goto illegal_op; | |
4646 | return; | |
4647 | } | |
4648 | if ((insn & 0x0f100000) == 0x04000000) { | |
4649 | /* NEON load/store. */ | |
4650 | if (!arm_feature(env, ARM_FEATURE_NEON)) | |
4651 | goto illegal_op; | |
4652 | ||
4653 | if (disas_neon_ls_insn(env, s, insn)) | |
4654 | goto illegal_op; | |
4655 | return; | |
4656 | } | |
4657 | if ((insn & 0x0d70f000) == 0x0550f000) | |
4658 | return; /* PLD */ | |
4659 | else if ((insn & 0x0ffffdff) == 0x01010000) { | |
4660 | ARCH(6); | |
4661 | /* setend */ | |
4662 | if (insn & (1 << 9)) { | |
4663 | /* BE8 mode not implemented. */ | |
4664 | goto illegal_op; | |
4665 | } | |
4666 | return; | |
4667 | } else if ((insn & 0x0fffff00) == 0x057ff000) { | |
4668 | switch ((insn >> 4) & 0xf) { | |
4669 | case 1: /* clrex */ | |
4670 | ARCH(6K); | |
4671 | gen_op_clrex(); | |
4672 | return; | |
4673 | case 4: /* dsb */ | |
4674 | case 5: /* dmb */ | |
4675 | case 6: /* isb */ | |
4676 | ARCH(7); | |
4677 | /* We don't emulate caches so these are a no-op. */ | |
4678 | return; | |
4679 | default: | |
4680 | goto illegal_op; | |
4681 | } | |
4682 | } else if ((insn & 0x0e5fffe0) == 0x084d0500) { | |
4683 | /* srs */ | |
4684 | uint32_t offset; | |
4685 | if (IS_USER(s)) | |
4686 | goto illegal_op; | |
4687 | ARCH(6); | |
4688 | op1 = (insn & 0x1f); | |
4689 | if (op1 == (env->uncached_cpsr & CPSR_M)) { | |
4690 | gen_movl_T1_reg(s, 13); | |
4691 | } else { | |
4692 | gen_op_movl_T1_r13_banked(op1); | |
4693 | } | |
4694 | i = (insn >> 23) & 3; | |
4695 | switch (i) { | |
4696 | case 0: offset = -4; break; /* DA */ | |
4697 | case 1: offset = -8; break; /* DB */ | |
4698 | case 2: offset = 0; break; /* IA */ | |
4699 | case 3: offset = 4; break; /* IB */ | |
4700 | default: abort(); | |
4701 | } | |
4702 | if (offset) | |
4703 | gen_op_addl_T1_im(offset); | |
4704 | gen_movl_T0_reg(s, 14); | |
4705 | gen_ldst(stl, s); | |
4706 | gen_op_movl_T0_cpsr(); | |
4707 | gen_op_addl_T1_im(4); | |
4708 | gen_ldst(stl, s); | |
4709 | if (insn & (1 << 21)) { | |
4710 | /* Base writeback. */ | |
4711 | switch (i) { | |
4712 | case 0: offset = -8; break; | |
4713 | case 1: offset = -4; break; | |
4714 | case 2: offset = 4; break; | |
4715 | case 3: offset = 0; break; | |
4716 | default: abort(); | |
4717 | } | |
4718 | if (offset) | |
4719 | gen_op_addl_T1_im(offset); | |
4720 | if (op1 == (env->uncached_cpsr & CPSR_M)) { | |
4721 | gen_movl_reg_T1(s, 13); | |
4722 | } else { | |
4723 | gen_op_movl_r13_T1_banked(op1); | |
4724 | } | |
4725 | } | |
4726 | } else if ((insn & 0x0e5fffe0) == 0x081d0a00) { | |
4727 | /* rfe */ | |
4728 | uint32_t offset; | |
4729 | if (IS_USER(s)) | |
4730 | goto illegal_op; | |
4731 | ARCH(6); | |
4732 | rn = (insn >> 16) & 0xf; | |
4733 | gen_movl_T1_reg(s, rn); | |
4734 | i = (insn >> 23) & 3; | |
4735 | switch (i) { | |
4736 | case 0: offset = 0; break; /* DA */ | |
4737 | case 1: offset = -4; break; /* DB */ | |
4738 | case 2: offset = 4; break; /* IA */ | |
4739 | case 3: offset = 8; break; /* IB */ | |
4740 | default: abort(); | |
4741 | } | |
4742 | if (offset) | |
4743 | gen_op_addl_T1_im(offset); | |
4744 | /* Load CPSR into T2 and PC into T0. */ | |
4745 | gen_ldst(ldl, s); | |
4746 | gen_op_movl_T2_T0(); | |
4747 | gen_op_addl_T1_im(-4); | |
4748 | gen_ldst(ldl, s); | |
4749 | if (insn & (1 << 21)) { | |
4750 | /* Base writeback. */ | |
4751 | switch (i) { | |
4752 | case 0: offset = -4; break; | |
4753 | case 1: offset = 0; break; | |
4754 | case 2: offset = 8; break; | |
4755 | case 3: offset = 4; break; | |
4756 | default: abort(); | |
4757 | } | |
4758 | if (offset) | |
4759 | gen_op_addl_T1_im(offset); | |
4760 | gen_movl_reg_T1(s, rn); | |
4761 | } | |
4762 | gen_rfe(s); | |
4763 | } else if ((insn & 0x0e000000) == 0x0a000000) { | |
4764 | /* branch link and change to thumb (blx <offset>) */ | |
4765 | int32_t offset; | |
4766 | ||
4767 | val = (uint32_t)s->pc; | |
4768 | gen_op_movl_T0_im(val); | |
4769 | gen_movl_reg_T0(s, 14); | |
4770 | /* Sign-extend the 24-bit offset */ | |
4771 | offset = (((int32_t)insn) << 8) >> 8; | |
4772 | /* offset * 4 + bit24 * 2 + (thumb bit) */ | |
4773 | val += (offset << 2) | ((insn >> 23) & 2) | 1; | |
4774 | /* pipeline offset */ | |
4775 | val += 4; | |
4776 | gen_op_movl_T0_im(val); | |
4777 | gen_bx(s); | |
4778 | return; | |
4779 | } else if ((insn & 0x0e000f00) == 0x0c000100) { | |
4780 | if (arm_feature(env, ARM_FEATURE_IWMMXT)) { | |
4781 | /* iWMMXt register transfer. */ | |
4782 | if (env->cp15.c15_cpar & (1 << 1)) | |
4783 | if (!disas_iwmmxt_insn(env, s, insn)) | |
4784 | return; | |
4785 | } | |
4786 | } else if ((insn & 0x0fe00000) == 0x0c400000) { | |
4787 | /* Coprocessor double register transfer. */ | |
4788 | } else if ((insn & 0x0f000010) == 0x0e000010) { | |
4789 | /* Additional coprocessor register transfer. */ | |
4790 | } else if ((insn & 0x0ff10010) == 0x01000000) { | |
4791 | uint32_t mask; | |
4792 | uint32_t val; | |
4793 | /* cps (privileged) */ | |
4794 | if (IS_USER(s)) | |
4795 | return; | |
4796 | mask = val = 0; | |
4797 | if (insn & (1 << 19)) { | |
4798 | if (insn & (1 << 8)) | |
4799 | mask |= CPSR_A; | |
4800 | if (insn & (1 << 7)) | |
4801 | mask |= CPSR_I; | |
4802 | if (insn & (1 << 6)) | |
4803 | mask |= CPSR_F; | |
4804 | if (insn & (1 << 18)) | |
4805 | val |= mask; | |
4806 | } | |
4807 | if (insn & (1 << 14)) { | |
4808 | mask |= CPSR_M; | |
4809 | val |= (insn & 0x1f); | |
4810 | } | |
4811 | if (mask) { | |
4812 | gen_op_movl_T0_im(val); | |
4813 | gen_set_psr_T0(s, mask, 0); | |
4814 | } | |
4815 | return; | |
4816 | } | |
4817 | goto illegal_op; | |
4818 | } | |
4819 | if (cond != 0xe) { | |
4820 | /* if not always execute, we generate a conditional jump to | |
4821 | next instruction */ | |
4822 | s->condlabel = gen_new_label(); | |
4823 | gen_test_cc[cond ^ 1](s->condlabel); | |
4824 | s->condjmp = 1; | |
4825 | } | |
4826 | if ((insn & 0x0f900000) == 0x03000000) { | |
4827 | if ((insn & (1 << 21)) == 0) { | |
4828 | ARCH(6T2); | |
4829 | rd = (insn >> 12) & 0xf; | |
4830 | val = ((insn >> 4) & 0xf000) | (insn & 0xfff); | |
4831 | if ((insn & (1 << 22)) == 0) { | |
4832 | /* MOVW */ | |
4833 | gen_op_movl_T0_im(val); | |
4834 | } else { | |
4835 | /* MOVT */ | |
4836 | gen_movl_T0_reg(s, rd); | |
4837 | gen_op_movl_T1_im(0xffff); | |
4838 | gen_op_andl_T0_T1(); | |
4839 | gen_op_movl_T1_im(val << 16); | |
4840 | gen_op_orl_T0_T1(); | |
4841 | } | |
4842 | gen_movl_reg_T0(s, rd); | |
4843 | } else { | |
4844 | if (((insn >> 12) & 0xf) != 0xf) | |
4845 | goto illegal_op; | |
4846 | if (((insn >> 16) & 0xf) == 0) { | |
4847 | gen_nop_hint(s, insn & 0xff); | |
4848 | } else { | |
4849 | /* CPSR = immediate */ | |
4850 | val = insn & 0xff; | |
4851 | shift = ((insn >> 8) & 0xf) * 2; | |
4852 | if (shift) | |
4853 | val = (val >> shift) | (val << (32 - shift)); | |
4854 | gen_op_movl_T0_im(val); | |
4855 | i = ((insn & (1 << 22)) != 0); | |
4856 | if (gen_set_psr_T0(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i)) | |
4857 | goto illegal_op; | |
4858 | } | |
4859 | } | |
4860 | } else if ((insn & 0x0f900000) == 0x01000000 | |
4861 | && (insn & 0x00000090) != 0x00000090) { | |
4862 | /* miscellaneous instructions */ | |
4863 | op1 = (insn >> 21) & 3; | |
4864 | sh = (insn >> 4) & 0xf; | |
4865 | rm = insn & 0xf; | |
4866 | switch (sh) { | |
4867 | case 0x0: /* move program status register */ | |
4868 | if (op1 & 1) { | |
4869 | /* PSR = reg */ | |
4870 | gen_movl_T0_reg(s, rm); | |
4871 | i = ((op1 & 2) != 0); | |
4872 | if (gen_set_psr_T0(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i)) | |
4873 | goto illegal_op; | |
4874 | } else { | |
4875 | /* reg = PSR */ | |
4876 | rd = (insn >> 12) & 0xf; | |
4877 | if (op1 & 2) { | |
4878 | if (IS_USER(s)) | |
4879 | goto illegal_op; | |
4880 | gen_op_movl_T0_spsr(); | |
4881 | } else { | |
4882 | gen_op_movl_T0_cpsr(); | |
4883 | } | |
4884 | gen_movl_reg_T0(s, rd); | |
4885 | } | |
4886 | break; | |
4887 | case 0x1: | |
4888 | if (op1 == 1) { | |
4889 | /* branch/exchange thumb (bx). */ | |
4890 | gen_movl_T0_reg(s, rm); | |
4891 | gen_bx(s); | |
4892 | } else if (op1 == 3) { | |
4893 | /* clz */ | |
4894 | rd = (insn >> 12) & 0xf; | |
4895 | gen_movl_T0_reg(s, rm); | |
4896 | gen_op_clz_T0(); | |
4897 | gen_movl_reg_T0(s, rd); | |
4898 | } else { | |
4899 | goto illegal_op; | |
4900 | } | |
4901 | break; | |
4902 | case 0x2: | |
4903 | if (op1 == 1) { | |
4904 | ARCH(5J); /* bxj */ | |
4905 | /* Trivial implementation equivalent to bx. */ | |
4906 | gen_movl_T0_reg(s, rm); | |
4907 | gen_bx(s); | |
4908 | } else { | |
4909 | goto illegal_op; | |
4910 | } | |
4911 | break; | |
4912 | case 0x3: | |
4913 | if (op1 != 1) | |
4914 | goto illegal_op; | |
4915 | ||
4916 | /* branch link/exchange thumb (blx) */ | |
4917 | val = (uint32_t)s->pc; | |
4918 | gen_op_movl_T1_im(val); | |
4919 | gen_movl_T0_reg(s, rm); | |
4920 | gen_movl_reg_T1(s, 14); | |
4921 | gen_bx(s); | |
4922 | break; | |
4923 | case 0x5: /* saturating add/subtract */ | |
4924 | rd = (insn >> 12) & 0xf; | |
4925 | rn = (insn >> 16) & 0xf; | |
4926 | gen_movl_T0_reg(s, rm); | |
4927 | gen_movl_T1_reg(s, rn); | |
4928 | if (op1 & 2) | |
4929 | gen_op_double_T1_saturate(); | |
4930 | if (op1 & 1) | |
4931 | gen_op_subl_T0_T1_saturate(); | |
4932 | else | |
4933 | gen_op_addl_T0_T1_saturate(); | |
4934 | gen_movl_reg_T0(s, rd); | |
4935 | break; | |
4936 | case 7: /* bkpt */ | |
4937 | gen_set_condexec(s); | |
4938 | gen_op_movl_T0_im((long)s->pc - 4); | |
4939 | gen_op_movl_reg_TN[0][15](); | |
4940 | gen_op_bkpt(); | |
4941 | s->is_jmp = DISAS_JUMP; | |
4942 | break; | |
4943 | case 0x8: /* signed multiply */ | |
4944 | case 0xa: | |
4945 | case 0xc: | |
4946 | case 0xe: | |
4947 | rs = (insn >> 8) & 0xf; | |
4948 | rn = (insn >> 12) & 0xf; | |
4949 | rd = (insn >> 16) & 0xf; | |
4950 | if (op1 == 1) { | |
4951 | /* (32 * 16) >> 16 */ | |
4952 | gen_movl_T0_reg(s, rm); | |
4953 | gen_movl_T1_reg(s, rs); | |
4954 | if (sh & 4) | |
4955 | gen_op_sarl_T1_im(16); | |
4956 | else | |
4957 | gen_op_sxth_T1(); | |
4958 | gen_op_imulw_T0_T1(); | |
4959 | if ((sh & 2) == 0) { | |
4960 | gen_movl_T1_reg(s, rn); | |
4961 | gen_op_addl_T0_T1_setq(); | |
4962 | } | |
4963 | gen_movl_reg_T0(s, rd); | |
4964 | } else { | |
4965 | /* 16 * 16 */ | |
4966 | gen_movl_T0_reg(s, rm); | |
4967 | gen_movl_T1_reg(s, rs); | |
4968 | gen_mulxy(sh & 2, sh & 4); | |
4969 | if (op1 == 2) { | |
4970 | gen_op_signbit_T1_T0(); | |
4971 | gen_op_addq_T0_T1(rn, rd); | |
4972 | gen_movl_reg_T0(s, rn); | |
4973 | gen_movl_reg_T1(s, rd); | |
4974 | } else { | |
4975 | if (op1 == 0) { | |
4976 | gen_movl_T1_reg(s, rn); | |
4977 | gen_op_addl_T0_T1_setq(); | |
4978 | } | |
4979 | gen_movl_reg_T0(s, rd); | |
4980 | } | |
4981 | } | |
4982 | break; | |
4983 | default: | |
4984 | goto illegal_op; | |
4985 | } | |
4986 | } else if (((insn & 0x0e000000) == 0 && | |
4987 | (insn & 0x00000090) != 0x90) || | |
4988 | ((insn & 0x0e000000) == (1 << 25))) { | |
4989 | int set_cc, logic_cc, shiftop; | |
4990 | ||
4991 | op1 = (insn >> 21) & 0xf; | |
4992 | set_cc = (insn >> 20) & 1; | |
4993 | logic_cc = table_logic_cc[op1] & set_cc; | |
4994 | ||
4995 | /* data processing instruction */ | |
4996 | if (insn & (1 << 25)) { | |
4997 | /* immediate operand */ | |
4998 | val = insn & 0xff; | |
4999 | shift = ((insn >> 8) & 0xf) * 2; | |
5000 | if (shift) | |
5001 | val = (val >> shift) | (val << (32 - shift)); | |
5002 | gen_op_movl_T1_im(val); | |
5003 | if (logic_cc && shift) | |
5004 | gen_op_mov_CF_T1(); | |
5005 | } else { | |
5006 | /* register */ | |
5007 | rm = (insn) & 0xf; | |
5008 | gen_movl_T1_reg(s, rm); | |
5009 | shiftop = (insn >> 5) & 3; | |
5010 | if (!(insn & (1 << 4))) { | |
5011 | shift = (insn >> 7) & 0x1f; | |
5012 | if (shift != 0) { | |
5013 | if (logic_cc) { | |
5014 | gen_shift_T1_im_cc[shiftop](shift); | |
5015 | } else { | |
5016 | gen_shift_T1_im[shiftop](shift); | |
5017 | } | |
5018 | } else if (shiftop != 0) { | |
5019 | if (logic_cc) { | |
5020 | gen_shift_T1_0_cc[shiftop](); | |
5021 | } else { | |
5022 | gen_shift_T1_0[shiftop](); | |
5023 | } | |
5024 | } | |
5025 | } else { | |
5026 | rs = (insn >> 8) & 0xf; | |
5027 | gen_movl_T0_reg(s, rs); | |
5028 | if (logic_cc) { | |
5029 | gen_shift_T1_T0_cc[shiftop](); | |
5030 | } else { | |
5031 | gen_shift_T1_T0[shiftop](); | |
5032 | } | |
5033 | } | |
5034 | } | |
5035 | if (op1 != 0x0f && op1 != 0x0d) { | |
5036 | rn = (insn >> 16) & 0xf; | |
5037 | gen_movl_T0_reg(s, rn); | |
5038 | } | |
5039 | rd = (insn >> 12) & 0xf; | |
5040 | switch(op1) { | |
5041 | case 0x00: | |
5042 | gen_op_andl_T0_T1(); | |
5043 | gen_movl_reg_T0(s, rd); | |
5044 | if (logic_cc) | |
5045 | gen_op_logic_T0_cc(); | |
5046 | break; | |
5047 | case 0x01: | |
5048 | gen_op_xorl_T0_T1(); | |
5049 | gen_movl_reg_T0(s, rd); | |
5050 | if (logic_cc) | |
5051 | gen_op_logic_T0_cc(); | |
5052 | break; | |
5053 | case 0x02: | |
5054 | if (set_cc && rd == 15) { | |
5055 | /* SUBS r15, ... is used for exception return. */ | |
5056 | if (IS_USER(s)) | |
5057 | goto illegal_op; | |
5058 | gen_op_subl_T0_T1_cc(); | |
5059 | gen_exception_return(s); | |
5060 | } else { | |
5061 | if (set_cc) | |
5062 | gen_op_subl_T0_T1_cc(); | |
5063 | else | |
5064 | gen_op_subl_T0_T1(); | |
5065 | gen_movl_reg_T0(s, rd); | |
5066 | } | |
5067 | break; | |
5068 | case 0x03: | |
5069 | if (set_cc) | |
5070 | gen_op_rsbl_T0_T1_cc(); | |
5071 | else | |
5072 | gen_op_rsbl_T0_T1(); | |
5073 | gen_movl_reg_T0(s, rd); | |
5074 | break; | |
5075 | case 0x04: | |
5076 | if (set_cc) | |
5077 | gen_op_addl_T0_T1_cc(); | |
5078 | else | |
5079 | gen_op_addl_T0_T1(); | |
5080 | gen_movl_reg_T0(s, rd); | |
5081 | break; | |
5082 | case 0x05: | |
5083 | if (set_cc) | |
5084 | gen_op_adcl_T0_T1_cc(); | |
5085 | else | |
5086 | gen_op_adcl_T0_T1(); | |
5087 | gen_movl_reg_T0(s, rd); | |
5088 | break; | |
5089 | case 0x06: | |
5090 | if (set_cc) | |
5091 | gen_op_sbcl_T0_T1_cc(); | |
5092 | else | |
5093 | gen_op_sbcl_T0_T1(); | |
5094 | gen_movl_reg_T0(s, rd); | |
5095 | break; | |
5096 | case 0x07: | |
5097 | if (set_cc) | |
5098 | gen_op_rscl_T0_T1_cc(); | |
5099 | else | |
5100 | gen_op_rscl_T0_T1(); | |
5101 | gen_movl_reg_T0(s, rd); | |
5102 | break; | |
5103 | case 0x08: | |
5104 | if (set_cc) { | |
5105 | gen_op_andl_T0_T1(); | |
5106 | gen_op_logic_T0_cc(); | |
5107 | } | |
5108 | break; | |
5109 | case 0x09: | |
5110 | if (set_cc) { | |
5111 | gen_op_xorl_T0_T1(); | |
5112 | gen_op_logic_T0_cc(); | |
5113 | } | |
5114 | break; | |
5115 | case 0x0a: | |
5116 | if (set_cc) { | |
5117 | gen_op_subl_T0_T1_cc(); | |
5118 | } | |
5119 | break; | |
5120 | case 0x0b: | |
5121 | if (set_cc) { | |
5122 | gen_op_addl_T0_T1_cc(); | |
5123 | } | |
5124 | break; | |
5125 | case 0x0c: | |
5126 | gen_op_orl_T0_T1(); | |
5127 | gen_movl_reg_T0(s, rd); | |
5128 | if (logic_cc) | |
5129 | gen_op_logic_T0_cc(); | |
5130 | break; | |
5131 | case 0x0d: | |
5132 | if (logic_cc && rd == 15) { | |
5133 | /* MOVS r15, ... is used for exception return. */ | |
5134 | if (IS_USER(s)) | |
5135 | goto illegal_op; | |
5136 | gen_op_movl_T0_T1(); | |
5137 | gen_exception_return(s); | |
5138 | } else { | |
5139 | gen_movl_reg_T1(s, rd); | |
5140 | if (logic_cc) | |
5141 | gen_op_logic_T1_cc(); | |
5142 | } | |
5143 | break; | |
5144 | case 0x0e: | |
5145 | gen_op_bicl_T0_T1(); | |
5146 | gen_movl_reg_T0(s, rd); | |
5147 | if (logic_cc) | |
5148 | gen_op_logic_T0_cc(); | |
5149 | break; | |
5150 | default: | |
5151 | case 0x0f: | |
5152 | gen_op_notl_T1(); | |
5153 | gen_movl_reg_T1(s, rd); | |
5154 | if (logic_cc) | |
5155 | gen_op_logic_T1_cc(); | |
5156 | break; | |
5157 | } | |
5158 | } else { | |
5159 | /* other instructions */ | |
5160 | op1 = (insn >> 24) & 0xf; | |
5161 | switch(op1) { | |
5162 | case 0x0: | |
5163 | case 0x1: | |
5164 | /* multiplies, extra load/stores */ | |
5165 | sh = (insn >> 5) & 3; | |
5166 | if (sh == 0) { | |
5167 | if (op1 == 0x0) { | |
5168 | rd = (insn >> 16) & 0xf; | |
5169 | rn = (insn >> 12) & 0xf; | |
5170 | rs = (insn >> 8) & 0xf; | |
5171 | rm = (insn) & 0xf; | |
5172 | op1 = (insn >> 20) & 0xf; | |
5173 | switch (op1) { | |
5174 | case 0: case 1: case 2: case 3: case 6: | |
5175 | /* 32 bit mul */ | |
5176 | gen_movl_T0_reg(s, rs); | |
5177 | gen_movl_T1_reg(s, rm); | |
5178 | gen_op_mul_T0_T1(); | |
5179 | if (insn & (1 << 22)) { | |
5180 | /* Subtract (mls) */ | |
5181 | ARCH(6T2); | |
5182 | gen_movl_T1_reg(s, rn); | |
5183 | gen_op_rsbl_T0_T1(); | |
5184 | } else if (insn & (1 << 21)) { | |
5185 | /* Add */ | |
5186 | gen_movl_T1_reg(s, rn); | |
5187 | gen_op_addl_T0_T1(); | |
5188 | } | |
5189 | if (insn & (1 << 20)) | |
5190 | gen_op_logic_T0_cc(); | |
5191 | gen_movl_reg_T0(s, rd); | |
5192 | break; | |
5193 | default: | |
5194 | /* 64 bit mul */ | |
5195 | gen_movl_T0_reg(s, rs); | |
5196 | gen_movl_T1_reg(s, rm); | |
5197 | if (insn & (1 << 22)) | |
5198 | gen_op_imull_T0_T1(); | |
5199 | else | |
5200 | gen_op_mull_T0_T1(); | |
5201 | if (insn & (1 << 21)) /* mult accumulate */ | |
5202 | gen_op_addq_T0_T1(rn, rd); | |
5203 | if (!(insn & (1 << 23))) { /* double accumulate */ | |
5204 | ARCH(6); | |
5205 | gen_op_addq_lo_T0_T1(rn); | |
5206 | gen_op_addq_lo_T0_T1(rd); | |
5207 | } | |
5208 | if (insn & (1 << 20)) | |
5209 | gen_op_logicq_cc(); | |
5210 | gen_movl_reg_T0(s, rn); | |
5211 | gen_movl_reg_T1(s, rd); | |
5212 | break; | |
5213 | } | |
5214 | } else { | |
5215 | rn = (insn >> 16) & 0xf; | |
5216 | rd = (insn >> 12) & 0xf; | |
5217 | if (insn & (1 << 23)) { | |
5218 | /* load/store exclusive */ | |
5219 | gen_movl_T1_reg(s, rn); | |
5220 | if (insn & (1 << 20)) { | |
5221 | gen_ldst(ldlex, s); | |
5222 | } else { | |
5223 | rm = insn & 0xf; | |
5224 | gen_movl_T0_reg(s, rm); | |
5225 | gen_ldst(stlex, s); | |
5226 | } | |
5227 | gen_movl_reg_T0(s, rd); | |
5228 | } else { | |
5229 | /* SWP instruction */ | |
5230 | rm = (insn) & 0xf; | |
5231 | ||
5232 | gen_movl_T0_reg(s, rm); | |
5233 | gen_movl_T1_reg(s, rn); | |
5234 | if (insn & (1 << 22)) { | |
5235 | gen_ldst(swpb, s); | |
5236 | } else { | |
5237 | gen_ldst(swpl, s); | |
5238 | } | |
5239 | gen_movl_reg_T0(s, rd); | |
5240 | } | |
5241 | } | |
5242 | } else { | |
5243 | int address_offset; | |
5244 | int load; | |
5245 | /* Misc load/store */ | |
5246 | rn = (insn >> 16) & 0xf; | |
5247 | rd = (insn >> 12) & 0xf; | |
5248 | gen_movl_T1_reg(s, rn); | |
5249 | if (insn & (1 << 24)) | |
5250 | gen_add_datah_offset(s, insn, 0); | |
5251 | address_offset = 0; | |
5252 | if (insn & (1 << 20)) { | |
5253 | /* load */ | |
5254 | switch(sh) { | |
5255 | case 1: | |
5256 | gen_ldst(lduw, s); | |
5257 | break; | |
5258 | case 2: | |
5259 | gen_ldst(ldsb, s); | |
5260 | break; | |
5261 | default: | |
5262 | case 3: | |
5263 | gen_ldst(ldsw, s); | |
5264 | break; | |
5265 | } | |
5266 | load = 1; | |
5267 | } else if (sh & 2) { | |
5268 | /* doubleword */ | |
5269 | if (sh & 1) { | |
5270 | /* store */ | |
5271 | gen_movl_T0_reg(s, rd); | |
5272 | gen_ldst(stl, s); | |
5273 | gen_op_addl_T1_im(4); | |
5274 | gen_movl_T0_reg(s, rd + 1); | |
5275 | gen_ldst(stl, s); | |
5276 | load = 0; | |
5277 | } else { | |
5278 | /* load */ | |
5279 | gen_ldst(ldl, s); | |
5280 | gen_movl_reg_T0(s, rd); | |
5281 | gen_op_addl_T1_im(4); | |
5282 | gen_ldst(ldl, s); | |
5283 | rd++; | |
5284 | load = 1; | |
5285 | } | |
5286 | address_offset = -4; | |
5287 | } else { | |
5288 | /* store */ | |
5289 | gen_movl_T0_reg(s, rd); | |
5290 | gen_ldst(stw, s); | |
5291 | load = 0; | |
5292 | } | |
5293 | /* Perform base writeback before the loaded value to | |
5294 | ensure correct behavior with overlapping index registers. | |
5295 | ldrd with base writeback is is undefined if the | |
5296 | destination and index registers overlap. */ | |
5297 | if (!(insn & (1 << 24))) { | |
5298 | gen_add_datah_offset(s, insn, address_offset); | |
5299 | gen_movl_reg_T1(s, rn); | |
5300 | } else if (insn & (1 << 21)) { | |
5301 | if (address_offset) | |
5302 | gen_op_addl_T1_im(address_offset); | |
5303 | gen_movl_reg_T1(s, rn); | |
5304 | } | |
5305 | if (load) { | |
5306 | /* Complete the load. */ | |
5307 | gen_movl_reg_T0(s, rd); | |
5308 | } | |
5309 | } | |
5310 | break; | |
5311 | case 0x4: | |
5312 | case 0x5: | |
5313 | goto do_ldst; | |
5314 | case 0x6: | |
5315 | case 0x7: | |
5316 | if (insn & (1 << 4)) { | |
5317 | ARCH(6); | |
5318 | /* Armv6 Media instructions. */ | |
5319 | rm = insn & 0xf; | |
5320 | rn = (insn >> 16) & 0xf; | |
2c0262af | 5321 | rd = (insn >> 12) & 0xf; |
9ee6e8bb PB |
5322 | rs = (insn >> 8) & 0xf; |
5323 | switch ((insn >> 23) & 3) { | |
5324 | case 0: /* Parallel add/subtract. */ | |
5325 | op1 = (insn >> 20) & 7; | |
5326 | gen_movl_T0_reg(s, rn); | |
5327 | gen_movl_T1_reg(s, rm); | |
5328 | sh = (insn >> 5) & 7; | |
5329 | if ((op1 & 3) == 0 || sh == 5 || sh == 6) | |
5330 | goto illegal_op; | |
5331 | gen_arm_parallel_addsub[op1][sh](); | |
5332 | gen_movl_reg_T0(s, rd); | |
5333 | break; | |
5334 | case 1: | |
5335 | if ((insn & 0x00700020) == 0) { | |
5336 | /* Hafword pack. */ | |
5337 | gen_movl_T0_reg(s, rn); | |
5338 | gen_movl_T1_reg(s, rm); | |
5339 | shift = (insn >> 7) & 0x1f; | |
5340 | if (shift) | |
5341 | gen_op_shll_T1_im(shift); | |
5342 | if (insn & (1 << 6)) | |
5343 | gen_op_pkhtb_T0_T1(); | |
5344 | else | |
5345 | gen_op_pkhbt_T0_T1(); | |
5346 | gen_movl_reg_T0(s, rd); | |
5347 | } else if ((insn & 0x00200020) == 0x00200000) { | |
5348 | /* [us]sat */ | |
5349 | gen_movl_T1_reg(s, rm); | |
5350 | shift = (insn >> 7) & 0x1f; | |
5351 | if (insn & (1 << 6)) { | |
5352 | if (shift == 0) | |
5353 | shift = 31; | |
5354 | gen_op_sarl_T1_im(shift); | |
5355 | } else { | |
5356 | gen_op_shll_T1_im(shift); | |
5357 | } | |
5358 | sh = (insn >> 16) & 0x1f; | |
5359 | if (sh != 0) { | |
5360 | if (insn & (1 << 22)) | |
5361 | gen_op_usat_T1(sh); | |
5362 | else | |
5363 | gen_op_ssat_T1(sh); | |
5364 | } | |
5365 | gen_movl_T1_reg(s, rd); | |
5366 | } else if ((insn & 0x00300fe0) == 0x00200f20) { | |
5367 | /* [us]sat16 */ | |
5368 | gen_movl_T1_reg(s, rm); | |
5369 | sh = (insn >> 16) & 0x1f; | |
5370 | if (sh != 0) { | |
5371 | if (insn & (1 << 22)) | |
5372 | gen_op_usat16_T1(sh); | |
5373 | else | |
5374 | gen_op_ssat16_T1(sh); | |
5375 | } | |
5376 | gen_movl_T1_reg(s, rd); | |
5377 | } else if ((insn & 0x00700fe0) == 0x00000fa0) { | |
5378 | /* Select bytes. */ | |
5379 | gen_movl_T0_reg(s, rn); | |
5380 | gen_movl_T1_reg(s, rm); | |
5381 | gen_op_sel_T0_T1(); | |
5382 | gen_movl_reg_T0(s, rd); | |
5383 | } else if ((insn & 0x000003e0) == 0x00000060) { | |
5384 | gen_movl_T1_reg(s, rm); | |
5385 | shift = (insn >> 10) & 3; | |
5386 | /* ??? In many cases it's not neccessary to do a | |
5387 | rotate, a shift is sufficient. */ | |
5388 | if (shift != 0) | |
5389 | gen_op_rorl_T1_im(shift * 8); | |
5390 | op1 = (insn >> 20) & 7; | |
5391 | switch (op1) { | |
5392 | case 0: gen_op_sxtb16_T1(); break; | |
5393 | case 2: gen_op_sxtb_T1(); break; | |
5394 | case 3: gen_op_sxth_T1(); break; | |
5395 | case 4: gen_op_uxtb16_T1(); break; | |
5396 | case 6: gen_op_uxtb_T1(); break; | |
5397 | case 7: gen_op_uxth_T1(); break; | |
5398 | default: goto illegal_op; | |
5399 | } | |
5400 | if (rn != 15) { | |
5401 | gen_movl_T2_reg(s, rn); | |
5402 | if ((op1 & 3) == 0) { | |
5403 | gen_op_add16_T1_T2(); | |
5404 | } else { | |
5405 | gen_op_addl_T1_T2(); | |
5406 | } | |
5407 | } | |
5408 | gen_movl_reg_T1(s, rd); | |
5409 | } else if ((insn & 0x003f0f60) == 0x003f0f20) { | |
5410 | /* rev */ | |
5411 | gen_movl_T0_reg(s, rm); | |
5412 | if (insn & (1 << 22)) { | |
5413 | if (insn & (1 << 7)) { | |
5414 | gen_op_revsh_T0(); | |
5415 | } else { | |
5416 | ARCH(6T2); | |
5417 | gen_op_rbit_T0(); | |
5418 | } | |
5419 | } else { | |
5420 | if (insn & (1 << 7)) | |
5421 | gen_op_rev16_T0(); | |
5422 | else | |
5423 | gen_op_rev_T0(); | |
5424 | } | |
5425 | gen_movl_reg_T0(s, rd); | |
5426 | } else { | |
5427 | goto illegal_op; | |
5428 | } | |
5429 | break; | |
5430 | case 2: /* Multiplies (Type 3). */ | |
5431 | gen_movl_T0_reg(s, rm); | |
5432 | gen_movl_T1_reg(s, rs); | |
5433 | if (insn & (1 << 20)) { | |
5434 | /* Signed multiply most significant [accumulate]. */ | |
5435 | gen_op_imull_T0_T1(); | |
5436 | if (insn & (1 << 5)) | |
5437 | gen_op_roundqd_T0_T1(); | |
5438 | else | |
5439 | gen_op_movl_T0_T1(); | |
5440 | if (rn != 15) { | |
5441 | gen_movl_T1_reg(s, rn); | |
5442 | if (insn & (1 << 6)) { | |
5443 | gen_op_addl_T0_T1(); | |
5444 | } else { | |
5445 | gen_op_rsbl_T0_T1(); | |
5446 | } | |
5447 | } | |
5448 | gen_movl_reg_T0(s, rd); | |
5449 | } else { | |
5450 | if (insn & (1 << 5)) | |
5451 | gen_op_swap_half_T1(); | |
5452 | gen_op_mul_dual_T0_T1(); | |
5453 | if (insn & (1 << 22)) { | |
5454 | if (insn & (1 << 6)) { | |
5455 | /* smlald */ | |
5456 | gen_op_addq_T0_T1_dual(rn, rd); | |
5457 | } else { | |
5458 | /* smlsld */ | |
5459 | gen_op_subq_T0_T1_dual(rn, rd); | |
5460 | } | |
5461 | } else { | |
5462 | /* This addition cannot overflow. */ | |
5463 | if (insn & (1 << 6)) { | |
5464 | /* sm[ul]sd */ | |
5465 | gen_op_subl_T0_T1(); | |
5466 | } else { | |
5467 | /* sm[ul]ad */ | |
5468 | gen_op_addl_T0_T1(); | |
5469 | } | |
5470 | if (rn != 15) | |
5471 | { | |
5472 | gen_movl_T1_reg(s, rn); | |
5473 | gen_op_addl_T0_T1_setq(); | |
5474 | } | |
5475 | gen_movl_reg_T0(s, rd); | |
5476 | } | |
5477 | } | |
5478 | break; | |
5479 | case 3: | |
5480 | op1 = ((insn >> 17) & 0x38) | ((insn >> 5) & 7); | |
5481 | switch (op1) { | |
5482 | case 0: /* Unsigned sum of absolute differences. */ | |
5483 | goto illegal_op; | |
5484 | gen_movl_T0_reg(s, rm); | |
5485 | gen_movl_T1_reg(s, rs); | |
5486 | gen_op_usad8_T0_T1(); | |
5487 | if (rn != 15) { | |
5488 | gen_movl_T1_reg(s, rn); | |
5489 | gen_op_addl_T0_T1(); | |
5490 | } | |
5491 | gen_movl_reg_T0(s, rd); | |
5492 | break; | |
5493 | case 0x20: case 0x24: case 0x28: case 0x2c: | |
5494 | /* Bitfield insert/clear. */ | |
5495 | ARCH(6T2); | |
5496 | shift = (insn >> 7) & 0x1f; | |
5497 | i = (insn >> 16) & 0x1f; | |
5498 | i = i + 1 - shift; | |
5499 | if (rm == 15) { | |
5500 | gen_op_movl_T1_im(0); | |
5501 | } else { | |
5502 | gen_movl_T1_reg(s, rm); | |
5503 | } | |
5504 | if (i != 32) { | |
5505 | gen_movl_T0_reg(s, rd); | |
5506 | gen_op_bfi_T1_T0(shift, ((1u << i) - 1) << shift); | |
5507 | } | |
5508 | gen_movl_reg_T1(s, rd); | |
5509 | break; | |
5510 | case 0x12: case 0x16: case 0x1a: case 0x1e: /* sbfx */ | |
5511 | case 0x32: case 0x36: case 0x3a: case 0x3e: /* ubfx */ | |
5512 | gen_movl_T1_reg(s, rm); | |
5513 | shift = (insn >> 7) & 0x1f; | |
5514 | i = ((insn >> 16) & 0x1f) + 1; | |
5515 | if (shift + i > 32) | |
5516 | goto illegal_op; | |
5517 | if (i < 32) { | |
5518 | if (op1 & 0x20) { | |
5519 | gen_op_ubfx_T1(shift, (1u << i) - 1); | |
5520 | } else { | |
5521 | gen_op_sbfx_T1(shift, i); | |
5522 | } | |
5523 | } | |
5524 | gen_movl_reg_T1(s, rd); | |
5525 | break; | |
5526 | default: | |
5527 | goto illegal_op; | |
5528 | } | |
5529 | break; | |
5530 | } | |
5531 | break; | |
5532 | } | |
5533 | do_ldst: | |
5534 | /* Check for undefined extension instructions | |
5535 | * per the ARM Bible IE: | |
5536 | * xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx | |
5537 | */ | |
5538 | sh = (0xf << 20) | (0xf << 4); | |
5539 | if (op1 == 0x7 && ((insn & sh) == sh)) | |
5540 | { | |
5541 | goto illegal_op; | |
5542 | } | |
5543 | /* load/store byte/word */ | |
5544 | rn = (insn >> 16) & 0xf; | |
5545 | rd = (insn >> 12) & 0xf; | |
5546 | gen_movl_T1_reg(s, rn); | |
5547 | i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000); | |
5548 | if (insn & (1 << 24)) | |
5549 | gen_add_data_offset(s, insn); | |
5550 | if (insn & (1 << 20)) { | |
5551 | /* load */ | |
5552 | s->is_mem = 1; | |
5553 | #if defined(CONFIG_USER_ONLY) | |
5554 | if (insn & (1 << 22)) | |
5555 | gen_op_ldub_raw(); | |
5556 | else | |
5557 | gen_op_ldl_raw(); | |
5558 | #else | |
5559 | if (insn & (1 << 22)) { | |
5560 | if (i) | |
5561 | gen_op_ldub_user(); | |
5562 | else | |
5563 | gen_op_ldub_kernel(); | |
5564 | } else { | |
5565 | if (i) | |
5566 | gen_op_ldl_user(); | |
5567 | else | |
5568 | gen_op_ldl_kernel(); | |
5569 | } | |
5570 | #endif | |
5571 | } else { | |
5572 | /* store */ | |
5573 | gen_movl_T0_reg(s, rd); | |
5574 | #if defined(CONFIG_USER_ONLY) | |
5575 | if (insn & (1 << 22)) | |
5576 | gen_op_stb_raw(); | |
5577 | else | |
5578 | gen_op_stl_raw(); | |
5579 | #else | |
5580 | if (insn & (1 << 22)) { | |
5581 | if (i) | |
5582 | gen_op_stb_user(); | |
5583 | else | |
5584 | gen_op_stb_kernel(); | |
5585 | } else { | |
5586 | if (i) | |
5587 | gen_op_stl_user(); | |
5588 | else | |
5589 | gen_op_stl_kernel(); | |
5590 | } | |
5591 | #endif | |
5592 | } | |
5593 | if (!(insn & (1 << 24))) { | |
5594 | gen_add_data_offset(s, insn); | |
5595 | gen_movl_reg_T1(s, rn); | |
5596 | } else if (insn & (1 << 21)) | |
5597 | gen_movl_reg_T1(s, rn); { | |
5598 | } | |
5599 | if (insn & (1 << 20)) { | |
5600 | /* Complete the load. */ | |
5601 | if (rd == 15) | |
5602 | gen_bx(s); | |
5603 | else | |
5604 | gen_movl_reg_T0(s, rd); | |
5605 | } | |
5606 | break; | |
5607 | case 0x08: | |
5608 | case 0x09: | |
5609 | { | |
5610 | int j, n, user, loaded_base; | |
5611 | /* load/store multiple words */ | |
5612 | /* XXX: store correct base if write back */ | |
5613 | user = 0; | |
5614 | if (insn & (1 << 22)) { | |
5615 | if (IS_USER(s)) | |
5616 | goto illegal_op; /* only usable in supervisor mode */ | |
5617 | ||
5618 | if ((insn & (1 << 15)) == 0) | |
5619 | user = 1; | |
5620 | } | |
5621 | rn = (insn >> 16) & 0xf; | |
5622 | gen_movl_T1_reg(s, rn); | |
5623 | ||
5624 | /* compute total size */ | |
5625 | loaded_base = 0; | |
5626 | n = 0; | |
5627 | for(i=0;i<16;i++) { | |
5628 | if (insn & (1 << i)) | |
5629 | n++; | |
5630 | } | |
5631 | /* XXX: test invalid n == 0 case ? */ | |
5632 | if (insn & (1 << 23)) { | |
5633 | if (insn & (1 << 24)) { | |
5634 | /* pre increment */ | |
5635 | gen_op_addl_T1_im(4); | |
5636 | } else { | |
5637 | /* post increment */ | |
5638 | } | |
5639 | } else { | |
5640 | if (insn & (1 << 24)) { | |
5641 | /* pre decrement */ | |
5642 | gen_op_addl_T1_im(-(n * 4)); | |
5643 | } else { | |
5644 | /* post decrement */ | |
5645 | if (n != 1) | |
5646 | gen_op_addl_T1_im(-((n - 1) * 4)); | |
5647 | } | |
5648 | } | |
5649 | j = 0; | |
5650 | for(i=0;i<16;i++) { | |
5651 | if (insn & (1 << i)) { | |
5652 | if (insn & (1 << 20)) { | |
5653 | /* load */ | |
5654 | gen_ldst(ldl, s); | |
5655 | if (i == 15) { | |
5656 | gen_bx(s); | |
5657 | } else if (user) { | |
5658 | gen_op_movl_user_T0(i); | |
5659 | } else if (i == rn) { | |
5660 | gen_op_movl_T2_T0(); | |
5661 | loaded_base = 1; | |
5662 | } else { | |
5663 | gen_movl_reg_T0(s, i); | |
5664 | } | |
5665 | } else { | |
5666 | /* store */ | |
5667 | if (i == 15) { | |
5668 | /* special case: r15 = PC + 8 */ | |
5669 | val = (long)s->pc + 4; | |
5670 | gen_op_movl_TN_im[0](val); | |
5671 | } else if (user) { | |
5672 | gen_op_movl_T0_user(i); | |
5673 | } else { | |
5674 | gen_movl_T0_reg(s, i); | |
5675 | } | |
5676 | gen_ldst(stl, s); | |
5677 | } | |
5678 | j++; | |
5679 | /* no need to add after the last transfer */ | |
5680 | if (j != n) | |
5681 | gen_op_addl_T1_im(4); | |
5682 | } | |
5683 | } | |
5684 | if (insn & (1 << 21)) { | |
5685 | /* write back */ | |
5686 | if (insn & (1 << 23)) { | |
5687 | if (insn & (1 << 24)) { | |
5688 | /* pre increment */ | |
5689 | } else { | |
5690 | /* post increment */ | |
5691 | gen_op_addl_T1_im(4); | |
5692 | } | |
5693 | } else { | |
5694 | if (insn & (1 << 24)) { | |
5695 | /* pre decrement */ | |
5696 | if (n != 1) | |
5697 | gen_op_addl_T1_im(-((n - 1) * 4)); | |
5698 | } else { | |
5699 | /* post decrement */ | |
5700 | gen_op_addl_T1_im(-(n * 4)); | |
5701 | } | |
5702 | } | |
5703 | gen_movl_reg_T1(s, rn); | |
5704 | } | |
5705 | if (loaded_base) { | |
5706 | gen_op_movl_T0_T2(); | |
5707 | gen_movl_reg_T0(s, rn); | |
5708 | } | |
5709 | if ((insn & (1 << 22)) && !user) { | |
5710 | /* Restore CPSR from SPSR. */ | |
5711 | gen_op_movl_T0_spsr(); | |
5712 | gen_op_movl_cpsr_T0(0xffffffff); | |
5713 | s->is_jmp = DISAS_UPDATE; | |
5714 | } | |
5715 | } | |
5716 | break; | |
5717 | case 0xa: | |
5718 | case 0xb: | |
5719 | { | |
5720 | int32_t offset; | |
5721 | ||
5722 | /* branch (and link) */ | |
5723 | val = (int32_t)s->pc; | |
5724 | if (insn & (1 << 24)) { | |
5725 | gen_op_movl_T0_im(val); | |
5726 | gen_op_movl_reg_TN[0][14](); | |
5727 | } | |
5728 | offset = (((int32_t)insn << 8) >> 8); | |
5729 | val += (offset << 2) + 4; | |
5730 | gen_jmp(s, val); | |
5731 | } | |
5732 | break; | |
5733 | case 0xc: | |
5734 | case 0xd: | |
5735 | case 0xe: | |
5736 | /* Coprocessor. */ | |
5737 | if (disas_coproc_insn(env, s, insn)) | |
5738 | goto illegal_op; | |
5739 | break; | |
5740 | case 0xf: | |
5741 | /* swi */ | |
5742 | gen_op_movl_T0_im((long)s->pc); | |
5743 | gen_op_movl_reg_TN[0][15](); | |
5744 | s->is_jmp = DISAS_SWI; | |
5745 | break; | |
5746 | default: | |
5747 | illegal_op: | |
5748 | gen_set_condexec(s); | |
5749 | gen_op_movl_T0_im((long)s->pc - 4); | |
5750 | gen_op_movl_reg_TN[0][15](); | |
5751 | gen_op_undef_insn(); | |
5752 | s->is_jmp = DISAS_JUMP; | |
5753 | break; | |
5754 | } | |
5755 | } | |
5756 | } | |
5757 | ||
5758 | /* Return true if this is a Thumb-2 logical op. */ | |
5759 | static int | |
5760 | thumb2_logic_op(int op) | |
5761 | { | |
5762 | return (op < 8); | |
5763 | } | |
5764 | ||
5765 | /* Generate code for a Thumb-2 data processing operation. If CONDS is nonzero | |
5766 | then set condition code flags based on the result of the operation. | |
5767 | If SHIFTER_OUT is nonzero then set the carry flag for logical operations | |
5768 | to the high bit of T1. | |
5769 | Returns zero if the opcode is valid. */ | |
5770 | ||
5771 | static int | |
5772 | gen_thumb2_data_op(DisasContext *s, int op, int conds, uint32_t shifter_out) | |
5773 | { | |
5774 | int logic_cc; | |
5775 | ||
5776 | logic_cc = 0; | |
5777 | switch (op) { | |
5778 | case 0: /* and */ | |
5779 | gen_op_andl_T0_T1(); | |
5780 | logic_cc = conds; | |
5781 | break; | |
5782 | case 1: /* bic */ | |
5783 | gen_op_bicl_T0_T1(); | |
5784 | logic_cc = conds; | |
5785 | break; | |
5786 | case 2: /* orr */ | |
5787 | gen_op_orl_T0_T1(); | |
5788 | logic_cc = conds; | |
5789 | break; | |
5790 | case 3: /* orn */ | |
5791 | gen_op_notl_T1(); | |
5792 | gen_op_orl_T0_T1(); | |
5793 | logic_cc = conds; | |
5794 | break; | |
5795 | case 4: /* eor */ | |
5796 | gen_op_xorl_T0_T1(); | |
5797 | logic_cc = conds; | |
5798 | break; | |
5799 | case 8: /* add */ | |
5800 | if (conds) | |
5801 | gen_op_addl_T0_T1_cc(); | |
5802 | else | |
5803 | gen_op_addl_T0_T1(); | |
5804 | break; | |
5805 | case 10: /* adc */ | |
5806 | if (conds) | |
5807 | gen_op_adcl_T0_T1_cc(); | |
5808 | else | |
5809 | gen_op_adcl_T0_T1(); | |
5810 | break; | |
5811 | case 11: /* sbc */ | |
5812 | if (conds) | |
5813 | gen_op_sbcl_T0_T1_cc(); | |
5814 | else | |
5815 | gen_op_sbcl_T0_T1(); | |
5816 | break; | |
5817 | case 13: /* sub */ | |
5818 | if (conds) | |
5819 | gen_op_subl_T0_T1_cc(); | |
5820 | else | |
5821 | gen_op_subl_T0_T1(); | |
5822 | break; | |
5823 | case 14: /* rsb */ | |
5824 | if (conds) | |
5825 | gen_op_rsbl_T0_T1_cc(); | |
5826 | else | |
5827 | gen_op_rsbl_T0_T1(); | |
5828 | break; | |
5829 | default: /* 5, 6, 7, 9, 12, 15. */ | |
5830 | return 1; | |
5831 | } | |
5832 | if (logic_cc) { | |
5833 | gen_op_logic_T0_cc(); | |
5834 | if (shifter_out) | |
5835 | gen_op_mov_CF_T1(); | |
5836 | } | |
5837 | return 0; | |
5838 | } | |
5839 | ||
5840 | /* Translate a 32-bit thumb instruction. Returns nonzero if the instruction | |
5841 | is not legal. */ | |
5842 | static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1) | |
5843 | { | |
5844 | uint32_t insn, imm, shift, offset, addr; | |
5845 | uint32_t rd, rn, rm, rs; | |
5846 | int op; | |
5847 | int shiftop; | |
5848 | int conds; | |
5849 | int logic_cc; | |
5850 | ||
5851 | if (!(arm_feature(env, ARM_FEATURE_THUMB2) | |
5852 | || arm_feature (env, ARM_FEATURE_M))) { | |
5853 | /* Thumb-1 cores may need to tread bl and blx as a pair of | |
5854 | 16-bit instructions to get correct prefetch abort behavior. */ | |
5855 | insn = insn_hw1; | |
5856 | if ((insn & (1 << 12)) == 0) { | |
5857 | /* Second half of blx. */ | |
5858 | offset = ((insn & 0x7ff) << 1); | |
5859 | gen_movl_T0_reg(s, 14); | |
5860 | gen_op_movl_T1_im(offset); | |
5861 | gen_op_addl_T0_T1(); | |
5862 | gen_op_movl_T1_im(0xfffffffc); | |
5863 | gen_op_andl_T0_T1(); | |
5864 | ||
5865 | addr = (uint32_t)s->pc; | |
5866 | gen_op_movl_T1_im(addr | 1); | |
5867 | gen_movl_reg_T1(s, 14); | |
5868 | gen_bx(s); | |
5869 | return 0; | |
5870 | } | |
5871 | if (insn & (1 << 11)) { | |
5872 | /* Second half of bl. */ | |
5873 | offset = ((insn & 0x7ff) << 1) | 1; | |
5874 | gen_movl_T0_reg(s, 14); | |
5875 | gen_op_movl_T1_im(offset); | |
5876 | gen_op_addl_T0_T1(); | |
5877 | ||
5878 | addr = (uint32_t)s->pc; | |
5879 | gen_op_movl_T1_im(addr | 1); | |
5880 | gen_movl_reg_T1(s, 14); | |
5881 | gen_bx(s); | |
5882 | return 0; | |
5883 | } | |
5884 | if ((s->pc & ~TARGET_PAGE_MASK) == 0) { | |
5885 | /* Instruction spans a page boundary. Implement it as two | |
5886 | 16-bit instructions in case the second half causes an | |
5887 | prefetch abort. */ | |
5888 | offset = ((int32_t)insn << 21) >> 9; | |
5889 | addr = s->pc + 2 + offset; | |
5890 | gen_op_movl_T0_im(addr); | |
5891 | gen_movl_reg_T0(s, 14); | |
5892 | return 0; | |
5893 | } | |
5894 | /* Fall through to 32-bit decode. */ | |
5895 | } | |
5896 | ||
5897 | insn = lduw_code(s->pc); | |
5898 | s->pc += 2; | |
5899 | insn |= (uint32_t)insn_hw1 << 16; | |
5900 | ||
5901 | if ((insn & 0xf800e800) != 0xf000e800) { | |
5902 | ARCH(6T2); | |
5903 | } | |
5904 | ||
5905 | rn = (insn >> 16) & 0xf; | |
5906 | rs = (insn >> 12) & 0xf; | |
5907 | rd = (insn >> 8) & 0xf; | |
5908 | rm = insn & 0xf; | |
5909 | switch ((insn >> 25) & 0xf) { | |
5910 | case 0: case 1: case 2: case 3: | |
5911 | /* 16-bit instructions. Should never happen. */ | |
5912 | abort(); | |
5913 | case 4: | |
5914 | if (insn & (1 << 22)) { | |
5915 | /* Other load/store, table branch. */ | |
5916 | if (insn & 0x01200000) { | |
5917 | /* Load/store doubleword. */ | |
5918 | if (rn == 15) { | |
5919 | gen_op_movl_T1_im(s->pc & ~3); | |
5920 | } else { | |
5921 | gen_movl_T1_reg(s, rn); | |
5922 | } | |
5923 | offset = (insn & 0xff) * 4; | |
5924 | if ((insn & (1 << 23)) == 0) | |
5925 | offset = -offset; | |
5926 | if (insn & (1 << 24)) { | |
5927 | gen_op_addl_T1_im(offset); | |
5928 | offset = 0; | |
5929 | } | |
5930 | if (insn & (1 << 20)) { | |
5931 | /* ldrd */ | |
5932 | gen_ldst(ldl, s); | |
5933 | gen_movl_reg_T0(s, rs); | |
5934 | gen_op_addl_T1_im(4); | |
5935 | gen_ldst(ldl, s); | |
5936 | gen_movl_reg_T0(s, rd); | |
5937 | } else { | |
5938 | /* strd */ | |
5939 | gen_movl_T0_reg(s, rs); | |
5940 | gen_ldst(stl, s); | |
5941 | gen_op_addl_T1_im(4); | |
5942 | gen_movl_T0_reg(s, rd); | |
5943 | gen_ldst(stl, s); | |
5944 | } | |
5945 | if (insn & (1 << 21)) { | |
5946 | /* Base writeback. */ | |
5947 | if (rn == 15) | |
5948 | goto illegal_op; | |
5949 | gen_op_addl_T1_im(offset - 4); | |
5950 | gen_movl_reg_T1(s, rn); | |
5951 | } | |
5952 | } else if ((insn & (1 << 23)) == 0) { | |
5953 | /* Load/store exclusive word. */ | |
5954 | gen_movl_T0_reg(s, rd); | |
2c0262af | 5955 | gen_movl_T1_reg(s, rn); |
2c0262af | 5956 | if (insn & (1 << 20)) { |
9ee6e8bb PB |
5957 | gen_ldst(ldlex, s); |
5958 | } else { | |
5959 | gen_ldst(stlex, s); | |
5960 | } | |
5961 | gen_movl_reg_T0(s, rd); | |
5962 | } else if ((insn & (1 << 6)) == 0) { | |
5963 | /* Table Branch. */ | |
5964 | if (rn == 15) { | |
5965 | gen_op_movl_T1_im(s->pc); | |
5966 | } else { | |
5967 | gen_movl_T1_reg(s, rn); | |
5968 | } | |
5969 | gen_movl_T2_reg(s, rm); | |
5970 | gen_op_addl_T1_T2(); | |
5971 | if (insn & (1 << 4)) { | |
5972 | /* tbh */ | |
5973 | gen_op_addl_T1_T2(); | |
5974 | gen_ldst(lduw, s); | |
5975 | } else { /* tbb */ | |
5976 | gen_ldst(ldub, s); | |
5977 | } | |
5978 | gen_op_jmp_T0_im(s->pc); | |
5979 | s->is_jmp = DISAS_JUMP; | |
5980 | } else { | |
5981 | /* Load/store exclusive byte/halfword/doubleword. */ | |
5982 | op = (insn >> 4) & 0x3; | |
5983 | gen_movl_T1_reg(s, rn); | |
5984 | if (insn & (1 << 20)) { | |
5985 | switch (op) { | |
5986 | case 0: | |
5987 | gen_ldst(ldbex, s); | |
5988 | break; | |
2c0262af | 5989 | case 1: |
9ee6e8bb | 5990 | gen_ldst(ldwex, s); |
2c0262af | 5991 | break; |
9ee6e8bb PB |
5992 | case 3: |
5993 | gen_ldst(ldqex, s); | |
5994 | gen_movl_reg_T1(s, rd); | |
2c0262af FB |
5995 | break; |
5996 | default: | |
9ee6e8bb PB |
5997 | goto illegal_op; |
5998 | } | |
5999 | gen_movl_reg_T0(s, rs); | |
6000 | } else { | |
6001 | gen_movl_T0_reg(s, rs); | |
6002 | switch (op) { | |
6003 | case 0: | |
6004 | gen_ldst(stbex, s); | |
6005 | break; | |
6006 | case 1: | |
6007 | gen_ldst(stwex, s); | |
6008 | break; | |
2c0262af | 6009 | case 3: |
9ee6e8bb PB |
6010 | gen_movl_T2_reg(s, rd); |
6011 | gen_ldst(stqex, s); | |
2c0262af | 6012 | break; |
9ee6e8bb PB |
6013 | default: |
6014 | goto illegal_op; | |
2c0262af | 6015 | } |
9ee6e8bb PB |
6016 | gen_movl_reg_T0(s, rm); |
6017 | } | |
6018 | } | |
6019 | } else { | |
6020 | /* Load/store multiple, RFE, SRS. */ | |
6021 | if (((insn >> 23) & 1) == ((insn >> 24) & 1)) { | |
6022 | /* Not available in user mode. */ | |
6023 | if (!IS_USER(s)) | |
6024 | goto illegal_op; | |
6025 | if (insn & (1 << 20)) { | |
6026 | /* rfe */ | |
6027 | gen_movl_T1_reg(s, rn); | |
6028 | if (insn & (1 << 24)) { | |
99c475ab | 6029 | gen_op_addl_T1_im(4); |
9ee6e8bb PB |
6030 | } else { |
6031 | gen_op_addl_T1_im(-4); | |
6032 | } | |
6033 | /* Load CPSR into T2 and PC into T0. */ | |
6034 | gen_ldst(ldl, s); | |
6035 | gen_op_movl_T2_T0(); | |
6036 | gen_op_addl_T1_im(-4); | |
6037 | gen_ldst(ldl, s); | |
6038 | if (insn & (1 << 21)) { | |
6039 | /* Base writeback. */ | |
6040 | if (insn & (1 << 24)) | |
6041 | gen_op_addl_T1_im(8); | |
6042 | gen_movl_reg_T1(s, rn); | |
6043 | } | |
6044 | gen_rfe(s); | |
6045 | } else { | |
6046 | /* srs */ | |
6047 | op = (insn & 0x1f); | |
6048 | if (op == (env->uncached_cpsr & CPSR_M)) { | |
6049 | gen_movl_T1_reg(s, 13); | |
6050 | } else { | |
6051 | gen_op_movl_T1_r13_banked(op); | |
6052 | } | |
6053 | if ((insn & (1 << 24)) == 0) { | |
6054 | gen_op_addl_T1_im(-8); | |
6055 | } | |
6056 | gen_movl_T0_reg(s, 14); | |
6057 | gen_ldst(stl, s); | |
6058 | gen_op_movl_T0_cpsr(); | |
6059 | gen_op_addl_T1_im(4); | |
6060 | gen_ldst(stl, s); | |
6061 | if (insn & (1 << 21)) { | |
6062 | if ((insn & (1 << 24)) == 0) { | |
6063 | gen_op_addl_T1_im(-4); | |
6064 | } else { | |
6065 | gen_op_addl_T1_im(4); | |
6066 | } | |
6067 | if (op == (env->uncached_cpsr & CPSR_M)) { | |
6068 | gen_movl_reg_T1(s, 13); | |
6069 | } else { | |
6070 | gen_op_movl_r13_T1_banked(op); | |
6071 | } | |
6072 | } | |
6073 | } | |
6074 | } else { | |
6075 | int i; | |
6076 | /* Load/store multiple. */ | |
6077 | gen_movl_T1_reg(s, rn); | |
6078 | offset = 0; | |
6079 | for (i = 0; i < 16; i++) { | |
6080 | if (insn & (1 << i)) | |
6081 | offset += 4; | |
6082 | } | |
6083 | if (insn & (1 << 24)) { | |
6084 | gen_op_addl_T1_im(-offset); | |
6085 | } | |
6086 | ||
6087 | for (i = 0; i < 16; i++) { | |
6088 | if ((insn & (1 << i)) == 0) | |
6089 | continue; | |
6090 | if (insn & (1 << 20)) { | |
6091 | /* Load. */ | |
6092 | gen_ldst(ldl, s); | |
6093 | if (i == 15) { | |
6094 | gen_bx(s); | |
6095 | } else { | |
6096 | gen_movl_reg_T0(s, i); | |
6097 | } | |
6098 | } else { | |
6099 | /* Store. */ | |
6100 | gen_movl_T0_reg(s, i); | |
b5ff1b31 | 6101 | gen_ldst(stl, s); |
9ee6e8bb PB |
6102 | } |
6103 | gen_op_addl_T1_im(4); | |
6104 | } | |
6105 | if (insn & (1 << 21)) { | |
6106 | /* Base register writeback. */ | |
6107 | if (insn & (1 << 24)) { | |
6108 | gen_op_addl_T1_im(-offset); | |
6109 | } | |
6110 | /* Fault if writeback register is in register list. */ | |
6111 | if (insn & (1 << rn)) | |
6112 | goto illegal_op; | |
6113 | gen_movl_reg_T1(s, rn); | |
6114 | } | |
6115 | } | |
6116 | } | |
6117 | break; | |
6118 | case 5: /* Data processing register constant shift. */ | |
6119 | if (rn == 15) | |
6120 | gen_op_movl_T0_im(0); | |
6121 | else | |
6122 | gen_movl_T0_reg(s, rn); | |
6123 | gen_movl_T1_reg(s, rm); | |
6124 | op = (insn >> 21) & 0xf; | |
6125 | shiftop = (insn >> 4) & 3; | |
6126 | shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); | |
6127 | conds = (insn & (1 << 20)) != 0; | |
6128 | logic_cc = (conds && thumb2_logic_op(op)); | |
6129 | if (shift != 0) { | |
6130 | if (logic_cc) { | |
6131 | gen_shift_T1_im_cc[shiftop](shift); | |
6132 | } else { | |
6133 | gen_shift_T1_im[shiftop](shift); | |
6134 | } | |
6135 | } else if (shiftop != 0) { | |
6136 | if (logic_cc) { | |
6137 | gen_shift_T1_0_cc[shiftop](); | |
6138 | } else { | |
6139 | gen_shift_T1_0[shiftop](); | |
6140 | } | |
6141 | } | |
6142 | if (gen_thumb2_data_op(s, op, conds, 0)) | |
6143 | goto illegal_op; | |
6144 | if (rd != 15) | |
6145 | gen_movl_reg_T0(s, rd); | |
6146 | break; | |
6147 | case 13: /* Misc data processing. */ | |
6148 | op = ((insn >> 22) & 6) | ((insn >> 7) & 1); | |
6149 | if (op < 4 && (insn & 0xf000) != 0xf000) | |
6150 | goto illegal_op; | |
6151 | switch (op) { | |
6152 | case 0: /* Register controlled shift. */ | |
6153 | gen_movl_T0_reg(s, rm); | |
6154 | gen_movl_T1_reg(s, rn); | |
6155 | if ((insn & 0x70) != 0) | |
6156 | goto illegal_op; | |
6157 | op = (insn >> 21) & 3; | |
6158 | if (insn & (1 << 20)) { | |
6159 | gen_shift_T1_T0_cc[op](); | |
6160 | gen_op_logic_T1_cc(); | |
6161 | } else { | |
6162 | gen_shift_T1_T0[op](); | |
6163 | } | |
6164 | gen_movl_reg_T1(s, rd); | |
6165 | break; | |
6166 | case 1: /* Sign/zero extend. */ | |
6167 | gen_movl_T1_reg(s, rm); | |
6168 | shift = (insn >> 4) & 3; | |
6169 | /* ??? In many cases it's not neccessary to do a | |
6170 | rotate, a shift is sufficient. */ | |
6171 | if (shift != 0) | |
6172 | gen_op_rorl_T1_im(shift * 8); | |
6173 | op = (insn >> 20) & 7; | |
6174 | switch (op) { | |
6175 | case 0: gen_op_sxth_T1(); break; | |
6176 | case 1: gen_op_uxth_T1(); break; | |
6177 | case 2: gen_op_sxtb16_T1(); break; | |
6178 | case 3: gen_op_uxtb16_T1(); break; | |
6179 | case 4: gen_op_sxtb_T1(); break; | |
6180 | case 5: gen_op_uxtb_T1(); break; | |
6181 | default: goto illegal_op; | |
6182 | } | |
6183 | if (rn != 15) { | |
6184 | gen_movl_T2_reg(s, rn); | |
6185 | if ((op >> 1) == 1) { | |
6186 | gen_op_add16_T1_T2(); | |
6187 | } else { | |
6188 | gen_op_addl_T1_T2(); | |
6189 | } | |
6190 | } | |
6191 | gen_movl_reg_T1(s, rd); | |
6192 | break; | |
6193 | case 2: /* SIMD add/subtract. */ | |
6194 | op = (insn >> 20) & 7; | |
6195 | shift = (insn >> 4) & 7; | |
6196 | if ((op & 3) == 3 || (shift & 3) == 3) | |
6197 | goto illegal_op; | |
6198 | gen_movl_T0_reg(s, rn); | |
6199 | gen_movl_T1_reg(s, rm); | |
6200 | gen_thumb2_parallel_addsub[op][shift](); | |
6201 | gen_movl_reg_T0(s, rd); | |
6202 | break; | |
6203 | case 3: /* Other data processing. */ | |
6204 | op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7); | |
6205 | if (op < 4) { | |
6206 | /* Saturating add/subtract. */ | |
6207 | gen_movl_T0_reg(s, rm); | |
6208 | gen_movl_T1_reg(s, rn); | |
6209 | if (op & 2) | |
6210 | gen_op_double_T1_saturate(); | |
6211 | if (op & 1) | |
6212 | gen_op_subl_T0_T1_saturate(); | |
6213 | else | |
6214 | gen_op_addl_T0_T1_saturate(); | |
6215 | } else { | |
6216 | gen_movl_T0_reg(s, rn); | |
6217 | switch (op) { | |
6218 | case 0x0a: /* rbit */ | |
6219 | gen_op_rbit_T0(); | |
6220 | break; | |
6221 | case 0x08: /* rev */ | |
6222 | gen_op_rev_T0(); | |
6223 | break; | |
6224 | case 0x09: /* rev16 */ | |
6225 | gen_op_rev16_T0(); | |
6226 | break; | |
6227 | case 0x0b: /* revsh */ | |
6228 | gen_op_revsh_T0(); | |
6229 | break; | |
6230 | case 0x10: /* sel */ | |
6231 | gen_movl_T1_reg(s, rm); | |
6232 | gen_op_sel_T0_T1(); | |
6233 | break; | |
6234 | case 0x18: /* clz */ | |
6235 | gen_op_clz_T0(); | |
6236 | break; | |
6237 | default: | |
6238 | goto illegal_op; | |
6239 | } | |
6240 | } | |
6241 | gen_movl_reg_T0(s, rd); | |
6242 | break; | |
6243 | case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */ | |
6244 | op = (insn >> 4) & 0xf; | |
6245 | gen_movl_T0_reg(s, rn); | |
6246 | gen_movl_T1_reg(s, rm); | |
6247 | switch ((insn >> 20) & 7) { | |
6248 | case 0: /* 32 x 32 -> 32 */ | |
6249 | gen_op_mul_T0_T1(); | |
6250 | if (rs != 15) { | |
6251 | gen_movl_T1_reg(s, rs); | |
6252 | if (op) | |
6253 | gen_op_rsbl_T0_T1(); | |
6254 | else | |
6255 | gen_op_addl_T0_T1(); | |
6256 | } | |
6257 | gen_movl_reg_T0(s, rd); | |
6258 | break; | |
6259 | case 1: /* 16 x 16 -> 32 */ | |
6260 | gen_mulxy(op & 2, op & 1); | |
6261 | if (rs != 15) { | |
6262 | gen_movl_T1_reg(s, rs); | |
6263 | gen_op_addl_T0_T1_setq(); | |
6264 | } | |
6265 | gen_movl_reg_T0(s, rd); | |
6266 | break; | |
6267 | case 2: /* Dual multiply add. */ | |
6268 | case 4: /* Dual multiply subtract. */ | |
6269 | if (op) | |
6270 | gen_op_swap_half_T1(); | |
6271 | gen_op_mul_dual_T0_T1(); | |
6272 | /* This addition cannot overflow. */ | |
6273 | if (insn & (1 << 22)) { | |
6274 | gen_op_subl_T0_T1(); | |
6275 | } else { | |
6276 | gen_op_addl_T0_T1(); | |
6277 | } | |
6278 | if (rs != 15) | |
6279 | { | |
6280 | gen_movl_T1_reg(s, rs); | |
6281 | gen_op_addl_T0_T1_setq(); | |
6282 | } | |
6283 | gen_movl_reg_T0(s, rd); | |
6284 | break; | |
6285 | case 3: /* 32 * 16 -> 32msb */ | |
6286 | if (op) | |
6287 | gen_op_sarl_T1_im(16); | |
6288 | else | |
6289 | gen_op_sxth_T1(); | |
6290 | gen_op_imulw_T0_T1(); | |
6291 | if (rs != 15) | |
6292 | { | |
6293 | gen_movl_T1_reg(s, rs); | |
6294 | gen_op_addl_T0_T1_setq(); | |
6295 | } | |
6296 | gen_movl_reg_T0(s, rd); | |
6297 | break; | |
6298 | case 5: case 6: /* 32 * 32 -> 32msb */ | |
6299 | gen_op_imull_T0_T1(); | |
6300 | if (insn & (1 << 5)) | |
6301 | gen_op_roundqd_T0_T1(); | |
6302 | else | |
6303 | gen_op_movl_T0_T1(); | |
6304 | if (rs != 15) { | |
6305 | gen_movl_T1_reg(s, rs); | |
6306 | if (insn & (1 << 21)) { | |
6307 | gen_op_addl_T0_T1(); | |
99c475ab | 6308 | } else { |
9ee6e8bb | 6309 | gen_op_rsbl_T0_T1(); |
99c475ab | 6310 | } |
2c0262af | 6311 | } |
9ee6e8bb PB |
6312 | gen_movl_reg_T0(s, rd); |
6313 | break; | |
6314 | case 7: /* Unsigned sum of absolute differences. */ | |
6315 | gen_op_usad8_T0_T1(); | |
6316 | if (rs != 15) { | |
6317 | gen_movl_T1_reg(s, rs); | |
6318 | gen_op_addl_T0_T1(); | |
5fd46862 | 6319 | } |
9ee6e8bb PB |
6320 | gen_movl_reg_T0(s, rd); |
6321 | break; | |
2c0262af FB |
6322 | } |
6323 | break; | |
9ee6e8bb PB |
6324 | case 6: case 7: /* 64-bit multiply, Divide. */ |
6325 | op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70); | |
6326 | gen_movl_T0_reg(s, rn); | |
6327 | gen_movl_T1_reg(s, rm); | |
6328 | if ((op & 0x50) == 0x10) { | |
6329 | /* sdiv, udiv */ | |
6330 | if (!arm_feature(env, ARM_FEATURE_DIV)) | |
6331 | goto illegal_op; | |
6332 | if (op & 0x20) | |
6333 | gen_op_udivl_T0_T1(); | |
2c0262af | 6334 | else |
9ee6e8bb PB |
6335 | gen_op_sdivl_T0_T1(); |
6336 | gen_movl_reg_T0(s, rd); | |
6337 | } else if ((op & 0xe) == 0xc) { | |
6338 | /* Dual multiply accumulate long. */ | |
6339 | if (op & 1) | |
6340 | gen_op_swap_half_T1(); | |
6341 | gen_op_mul_dual_T0_T1(); | |
6342 | if (op & 0x10) { | |
6343 | gen_op_subl_T0_T1(); | |
b5ff1b31 | 6344 | } else { |
9ee6e8bb | 6345 | gen_op_addl_T0_T1(); |
b5ff1b31 | 6346 | } |
9ee6e8bb PB |
6347 | gen_op_signbit_T1_T0(); |
6348 | gen_op_addq_T0_T1(rs, rd); | |
6349 | gen_movl_reg_T0(s, rs); | |
6350 | gen_movl_reg_T1(s, rd); | |
2c0262af | 6351 | } else { |
9ee6e8bb PB |
6352 | if (op & 0x20) { |
6353 | /* Unsigned 64-bit multiply */ | |
6354 | gen_op_mull_T0_T1(); | |
b5ff1b31 | 6355 | } else { |
9ee6e8bb PB |
6356 | if (op & 8) { |
6357 | /* smlalxy */ | |
6358 | gen_mulxy(op & 2, op & 1); | |
6359 | gen_op_signbit_T1_T0(); | |
6360 | } else { | |
6361 | /* Signed 64-bit multiply */ | |
6362 | gen_op_imull_T0_T1(); | |
6363 | } | |
b5ff1b31 | 6364 | } |
9ee6e8bb PB |
6365 | if (op & 4) { |
6366 | /* umaal */ | |
6367 | gen_op_addq_lo_T0_T1(rs); | |
6368 | gen_op_addq_lo_T0_T1(rd); | |
6369 | } else if (op & 0x40) { | |
6370 | /* 64-bit accumulate. */ | |
6371 | gen_op_addq_T0_T1(rs, rd); | |
6372 | } | |
6373 | gen_movl_reg_T0(s, rs); | |
6374 | gen_movl_reg_T1(s, rd); | |
5fd46862 | 6375 | } |
2c0262af | 6376 | break; |
9ee6e8bb PB |
6377 | } |
6378 | break; | |
6379 | case 6: case 7: case 14: case 15: | |
6380 | /* Coprocessor. */ | |
6381 | if (((insn >> 24) & 3) == 3) { | |
6382 | /* Translate into the equivalent ARM encoding. */ | |
6383 | insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4); | |
6384 | if (disas_neon_data_insn(env, s, insn)) | |
6385 | goto illegal_op; | |
6386 | } else { | |
6387 | if (insn & (1 << 28)) | |
6388 | goto illegal_op; | |
6389 | if (disas_coproc_insn (env, s, insn)) | |
6390 | goto illegal_op; | |
6391 | } | |
6392 | break; | |
6393 | case 8: case 9: case 10: case 11: | |
6394 | if (insn & (1 << 15)) { | |
6395 | /* Branches, misc control. */ | |
6396 | if (insn & 0x5000) { | |
6397 | /* Unconditional branch. */ | |
6398 | /* signextend(hw1[10:0]) -> offset[:12]. */ | |
6399 | offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff; | |
6400 | /* hw1[10:0] -> offset[11:1]. */ | |
6401 | offset |= (insn & 0x7ff) << 1; | |
6402 | /* (~hw2[13, 11] ^ offset[24]) -> offset[23,22] | |
6403 | offset[24:22] already have the same value because of the | |
6404 | sign extension above. */ | |
6405 | offset ^= ((~insn) & (1 << 13)) << 10; | |
6406 | offset ^= ((~insn) & (1 << 11)) << 11; | |
6407 | ||
6408 | addr = s->pc; | |
6409 | if (insn & (1 << 14)) { | |
6410 | /* Branch and link. */ | |
6411 | gen_op_movl_T1_im(addr | 1); | |
6412 | gen_movl_reg_T1(s, 14); | |
b5ff1b31 | 6413 | } |
3b46e624 | 6414 | |
9ee6e8bb PB |
6415 | addr += offset; |
6416 | if (insn & (1 << 12)) { | |
6417 | /* b/bl */ | |
6418 | gen_jmp(s, addr); | |
6419 | } else { | |
6420 | /* blx */ | |
6421 | addr &= ~(uint32_t)2; | |
6422 | gen_op_movl_T0_im(addr); | |
6423 | gen_bx(s); | |
2c0262af | 6424 | } |
9ee6e8bb PB |
6425 | } else if (((insn >> 23) & 7) == 7) { |
6426 | /* Misc control */ | |
6427 | if (insn & (1 << 13)) | |
6428 | goto illegal_op; | |
6429 | ||
6430 | if (insn & (1 << 26)) { | |
6431 | /* Secure monitor call (v6Z) */ | |
6432 | goto illegal_op; /* not implemented. */ | |
2c0262af | 6433 | } else { |
9ee6e8bb PB |
6434 | op = (insn >> 20) & 7; |
6435 | switch (op) { | |
6436 | case 0: /* msr cpsr. */ | |
6437 | if (IS_M(env)) { | |
6438 | gen_op_v7m_msr_T0(insn & 0xff); | |
6439 | gen_movl_reg_T0(s, rn); | |
6440 | gen_lookup_tb(s); | |
6441 | break; | |
6442 | } | |
6443 | /* fall through */ | |
6444 | case 1: /* msr spsr. */ | |
6445 | if (IS_M(env)) | |
6446 | goto illegal_op; | |
6447 | gen_movl_T0_reg(s, rn); | |
6448 | if (gen_set_psr_T0(s, | |
6449 | msr_mask(env, s, (insn >> 8) & 0xf, op == 1), | |
6450 | op == 1)) | |
6451 | goto illegal_op; | |
6452 | break; | |
6453 | case 2: /* cps, nop-hint. */ | |
6454 | if (((insn >> 8) & 7) == 0) { | |
6455 | gen_nop_hint(s, insn & 0xff); | |
6456 | } | |
6457 | /* Implemented as NOP in user mode. */ | |
6458 | if (IS_USER(s)) | |
6459 | break; | |
6460 | offset = 0; | |
6461 | imm = 0; | |
6462 | if (insn & (1 << 10)) { | |
6463 | if (insn & (1 << 7)) | |
6464 | offset |= CPSR_A; | |
6465 | if (insn & (1 << 6)) | |
6466 | offset |= CPSR_I; | |
6467 | if (insn & (1 << 5)) | |
6468 | offset |= CPSR_F; | |
6469 | if (insn & (1 << 9)) | |
6470 | imm = CPSR_A | CPSR_I | CPSR_F; | |
6471 | } | |
6472 | if (insn & (1 << 8)) { | |
6473 | offset |= 0x1f; | |
6474 | imm |= (insn & 0x1f); | |
6475 | } | |
6476 | if (offset) { | |
6477 | gen_op_movl_T0_im(imm); | |
6478 | gen_set_psr_T0(s, offset, 0); | |
6479 | } | |
6480 | break; | |
6481 | case 3: /* Special control operations. */ | |
6482 | op = (insn >> 4) & 0xf; | |
6483 | switch (op) { | |
6484 | case 2: /* clrex */ | |
6485 | gen_op_clrex(); | |
6486 | break; | |
6487 | case 4: /* dsb */ | |
6488 | case 5: /* dmb */ | |
6489 | case 6: /* isb */ | |
6490 | /* These execute as NOPs. */ | |
6491 | ARCH(7); | |
6492 | break; | |
6493 | default: | |
6494 | goto illegal_op; | |
6495 | } | |
6496 | break; | |
6497 | case 4: /* bxj */ | |
6498 | /* Trivial implementation equivalent to bx. */ | |
6499 | gen_movl_T0_reg(s, rn); | |
6500 | gen_bx(s); | |
6501 | break; | |
6502 | case 5: /* Exception return. */ | |
6503 | /* Unpredictable in user mode. */ | |
6504 | goto illegal_op; | |
6505 | case 6: /* mrs cpsr. */ | |
6506 | if (IS_M(env)) { | |
6507 | gen_op_v7m_mrs_T0(insn & 0xff); | |
6508 | } else { | |
6509 | gen_op_movl_T0_cpsr(); | |
6510 | } | |
6511 | gen_movl_reg_T0(s, rd); | |
6512 | break; | |
6513 | case 7: /* mrs spsr. */ | |
6514 | /* Not accessible in user mode. */ | |
6515 | if (IS_USER(s) || IS_M(env)) | |
6516 | goto illegal_op; | |
6517 | gen_op_movl_T0_spsr(); | |
6518 | gen_movl_reg_T0(s, rd); | |
6519 | break; | |
2c0262af FB |
6520 | } |
6521 | } | |
9ee6e8bb PB |
6522 | } else { |
6523 | /* Conditional branch. */ | |
6524 | op = (insn >> 22) & 0xf; | |
6525 | /* Generate a conditional jump to next instruction. */ | |
6526 | s->condlabel = gen_new_label(); | |
6527 | gen_test_cc[op ^ 1](s->condlabel); | |
6528 | s->condjmp = 1; | |
6529 | ||
6530 | /* offset[11:1] = insn[10:0] */ | |
6531 | offset = (insn & 0x7ff) << 1; | |
6532 | /* offset[17:12] = insn[21:16]. */ | |
6533 | offset |= (insn & 0x003f0000) >> 4; | |
6534 | /* offset[31:20] = insn[26]. */ | |
6535 | offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11; | |
6536 | /* offset[18] = insn[13]. */ | |
6537 | offset |= (insn & (1 << 13)) << 5; | |
6538 | /* offset[19] = insn[11]. */ | |
6539 | offset |= (insn & (1 << 11)) << 8; | |
6540 | ||
6541 | /* jump to the offset */ | |
6542 | addr = s->pc + offset; | |
6543 | gen_jmp(s, addr); | |
6544 | } | |
6545 | } else { | |
6546 | /* Data processing immediate. */ | |
6547 | if (insn & (1 << 25)) { | |
6548 | if (insn & (1 << 24)) { | |
6549 | if (insn & (1 << 20)) | |
6550 | goto illegal_op; | |
6551 | /* Bitfield/Saturate. */ | |
6552 | op = (insn >> 21) & 7; | |
6553 | imm = insn & 0x1f; | |
6554 | shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c); | |
6555 | if (rn == 15) | |
6556 | gen_op_movl_T1_im(0); | |
6557 | else | |
6558 | gen_movl_T1_reg(s, rn); | |
6559 | switch (op) { | |
6560 | case 2: /* Signed bitfield extract. */ | |
6561 | imm++; | |
6562 | if (shift + imm > 32) | |
6563 | goto illegal_op; | |
6564 | if (imm < 32) | |
6565 | gen_op_sbfx_T1(shift, imm); | |
6566 | break; | |
6567 | case 6: /* Unsigned bitfield extract. */ | |
6568 | imm++; | |
6569 | if (shift + imm > 32) | |
6570 | goto illegal_op; | |
6571 | if (imm < 32) | |
6572 | gen_op_ubfx_T1(shift, (1u << imm) - 1); | |
6573 | break; | |
6574 | case 3: /* Bitfield insert/clear. */ | |
6575 | if (imm < shift) | |
6576 | goto illegal_op; | |
6577 | imm = imm + 1 - shift; | |
6578 | if (imm != 32) { | |
6579 | gen_movl_T0_reg(s, rd); | |
6580 | gen_op_bfi_T1_T0(shift, ((1u << imm) - 1) << shift); | |
6581 | } | |
6582 | break; | |
6583 | case 7: | |
6584 | goto illegal_op; | |
6585 | default: /* Saturate. */ | |
6586 | gen_movl_T1_reg(s, rn); | |
6587 | if (shift) { | |
6588 | if (op & 1) | |
6589 | gen_op_sarl_T1_im(shift); | |
6590 | else | |
6591 | gen_op_shll_T1_im(shift); | |
6592 | } | |
6593 | if (op & 4) { | |
6594 | /* Unsigned. */ | |
6595 | gen_op_ssat_T1(imm); | |
6596 | if ((op & 1) && shift == 0) | |
6597 | gen_op_usat16_T1(imm); | |
6598 | else | |
6599 | gen_op_usat_T1(imm); | |
2c0262af | 6600 | } else { |
9ee6e8bb PB |
6601 | /* Signed. */ |
6602 | gen_op_ssat_T1(imm); | |
6603 | if ((op & 1) && shift == 0) | |
6604 | gen_op_ssat16_T1(imm); | |
6605 | else | |
6606 | gen_op_ssat_T1(imm); | |
2c0262af | 6607 | } |
9ee6e8bb | 6608 | break; |
2c0262af | 6609 | } |
9ee6e8bb PB |
6610 | gen_movl_reg_T1(s, rd); |
6611 | } else { | |
6612 | imm = ((insn & 0x04000000) >> 15) | |
6613 | | ((insn & 0x7000) >> 4) | (insn & 0xff); | |
6614 | if (insn & (1 << 22)) { | |
6615 | /* 16-bit immediate. */ | |
6616 | imm |= (insn >> 4) & 0xf000; | |
6617 | if (insn & (1 << 23)) { | |
6618 | /* movt */ | |
6619 | gen_movl_T0_reg(s, rd); | |
6620 | gen_op_movtop_T0_im(imm << 16); | |
2c0262af | 6621 | } else { |
9ee6e8bb PB |
6622 | /* movw */ |
6623 | gen_op_movl_T0_im(imm); | |
2c0262af FB |
6624 | } |
6625 | } else { | |
9ee6e8bb PB |
6626 | /* Add/sub 12-bit immediate. */ |
6627 | if (rn == 15) { | |
6628 | addr = s->pc & ~(uint32_t)3; | |
6629 | if (insn & (1 << 23)) | |
6630 | addr -= imm; | |
6631 | else | |
6632 | addr += imm; | |
6633 | gen_op_movl_T0_im(addr); | |
2c0262af | 6634 | } else { |
9ee6e8bb PB |
6635 | gen_movl_T0_reg(s, rn); |
6636 | gen_op_movl_T1_im(imm); | |
6637 | if (insn & (1 << 23)) | |
6638 | gen_op_subl_T0_T1(); | |
6639 | else | |
6640 | gen_op_addl_T0_T1(); | |
2c0262af | 6641 | } |
9ee6e8bb PB |
6642 | } |
6643 | gen_movl_reg_T0(s, rd); | |
191abaa2 | 6644 | } |
9ee6e8bb PB |
6645 | } else { |
6646 | int shifter_out = 0; | |
6647 | /* modified 12-bit immediate. */ | |
6648 | shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12); | |
6649 | imm = (insn & 0xff); | |
6650 | switch (shift) { | |
6651 | case 0: /* XY */ | |
6652 | /* Nothing to do. */ | |
6653 | break; | |
6654 | case 1: /* 00XY00XY */ | |
6655 | imm |= imm << 16; | |
6656 | break; | |
6657 | case 2: /* XY00XY00 */ | |
6658 | imm |= imm << 16; | |
6659 | imm <<= 8; | |
6660 | break; | |
6661 | case 3: /* XYXYXYXY */ | |
6662 | imm |= imm << 16; | |
6663 | imm |= imm << 8; | |
6664 | break; | |
6665 | default: /* Rotated constant. */ | |
6666 | shift = (shift << 1) | (imm >> 7); | |
6667 | imm |= 0x80; | |
6668 | imm = imm << (32 - shift); | |
6669 | shifter_out = 1; | |
6670 | break; | |
b5ff1b31 | 6671 | } |
9ee6e8bb PB |
6672 | gen_op_movl_T1_im(imm); |
6673 | rn = (insn >> 16) & 0xf; | |
6674 | if (rn == 15) | |
6675 | gen_op_movl_T0_im(0); | |
6676 | else | |
6677 | gen_movl_T0_reg(s, rn); | |
6678 | op = (insn >> 21) & 0xf; | |
6679 | if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0, | |
6680 | shifter_out)) | |
6681 | goto illegal_op; | |
6682 | rd = (insn >> 8) & 0xf; | |
6683 | if (rd != 15) { | |
6684 | gen_movl_reg_T0(s, rd); | |
2c0262af | 6685 | } |
2c0262af | 6686 | } |
9ee6e8bb PB |
6687 | } |
6688 | break; | |
6689 | case 12: /* Load/store single data item. */ | |
6690 | { | |
6691 | int postinc = 0; | |
6692 | int writeback = 0; | |
6693 | if ((insn & 0x01100000) == 0x01000000) { | |
6694 | if (disas_neon_ls_insn(env, s, insn)) | |
c1713132 | 6695 | goto illegal_op; |
9ee6e8bb PB |
6696 | break; |
6697 | } | |
6698 | if (rn == 15) { | |
6699 | /* PC relative. */ | |
6700 | /* s->pc has already been incremented by 4. */ | |
6701 | imm = s->pc & 0xfffffffc; | |
6702 | if (insn & (1 << 23)) | |
6703 | imm += insn & 0xfff; | |
6704 | else | |
6705 | imm -= insn & 0xfff; | |
6706 | gen_op_movl_T1_im(imm); | |
6707 | } else { | |
6708 | gen_movl_T1_reg(s, rn); | |
6709 | if (insn & (1 << 23)) { | |
6710 | /* Positive offset. */ | |
6711 | imm = insn & 0xfff; | |
6712 | gen_op_addl_T1_im(imm); | |
6713 | } else { | |
6714 | op = (insn >> 8) & 7; | |
6715 | imm = insn & 0xff; | |
6716 | switch (op) { | |
6717 | case 0: case 8: /* Shifted Register. */ | |
6718 | shift = (insn >> 4) & 0xf; | |
6719 | if (shift > 3) | |
18c9b560 | 6720 | goto illegal_op; |
9ee6e8bb PB |
6721 | gen_movl_T2_reg(s, rm); |
6722 | if (shift) | |
6723 | gen_op_shll_T2_im(shift); | |
6724 | gen_op_addl_T1_T2(); | |
6725 | break; | |
6726 | case 4: /* Negative offset. */ | |
6727 | gen_op_addl_T1_im(-imm); | |
6728 | break; | |
6729 | case 6: /* User privilege. */ | |
6730 | gen_op_addl_T1_im(imm); | |
6731 | break; | |
6732 | case 1: /* Post-decrement. */ | |
6733 | imm = -imm; | |
6734 | /* Fall through. */ | |
6735 | case 3: /* Post-increment. */ | |
6736 | gen_op_movl_T2_im(imm); | |
6737 | postinc = 1; | |
6738 | writeback = 1; | |
6739 | break; | |
6740 | case 5: /* Pre-decrement. */ | |
6741 | imm = -imm; | |
6742 | /* Fall through. */ | |
6743 | case 7: /* Pre-increment. */ | |
6744 | gen_op_addl_T1_im(imm); | |
6745 | writeback = 1; | |
6746 | break; | |
6747 | default: | |
b7bcbe95 | 6748 | goto illegal_op; |
9ee6e8bb PB |
6749 | } |
6750 | } | |
6751 | } | |
6752 | op = ((insn >> 21) & 3) | ((insn >> 22) & 4); | |
6753 | if (insn & (1 << 20)) { | |
6754 | /* Load. */ | |
6755 | if (rs == 15 && op != 2) { | |
6756 | if (op & 2) | |
b5ff1b31 | 6757 | goto illegal_op; |
9ee6e8bb PB |
6758 | /* Memory hint. Implemented as NOP. */ |
6759 | } else { | |
6760 | switch (op) { | |
6761 | case 0: gen_ldst(ldub, s); break; | |
6762 | case 4: gen_ldst(ldsb, s); break; | |
6763 | case 1: gen_ldst(lduw, s); break; | |
6764 | case 5: gen_ldst(ldsw, s); break; | |
6765 | case 2: gen_ldst(ldl, s); break; | |
6766 | default: goto illegal_op; | |
6767 | } | |
6768 | if (rs == 15) { | |
6769 | gen_bx(s); | |
6770 | } else { | |
6771 | gen_movl_reg_T0(s, rs); | |
6772 | } | |
6773 | } | |
6774 | } else { | |
6775 | /* Store. */ | |
6776 | if (rs == 15) | |
b7bcbe95 | 6777 | goto illegal_op; |
9ee6e8bb PB |
6778 | gen_movl_T0_reg(s, rs); |
6779 | switch (op) { | |
6780 | case 0: gen_ldst(stb, s); break; | |
6781 | case 1: gen_ldst(stw, s); break; | |
6782 | case 2: gen_ldst(stl, s); break; | |
6783 | default: goto illegal_op; | |
b7bcbe95 | 6784 | } |
2c0262af | 6785 | } |
9ee6e8bb PB |
6786 | if (postinc) |
6787 | gen_op_addl_T1_im(imm); | |
6788 | if (writeback) | |
6789 | gen_movl_reg_T1(s, rn); | |
6790 | } | |
6791 | break; | |
6792 | default: | |
6793 | goto illegal_op; | |
2c0262af | 6794 | } |
9ee6e8bb PB |
6795 | return 0; |
6796 | illegal_op: | |
6797 | return 1; | |
2c0262af FB |
6798 | } |
6799 | ||
9ee6e8bb | 6800 | static void disas_thumb_insn(CPUState *env, DisasContext *s) |
99c475ab FB |
6801 | { |
6802 | uint32_t val, insn, op, rm, rn, rd, shift, cond; | |
6803 | int32_t offset; | |
6804 | int i; | |
6805 | ||
9ee6e8bb PB |
6806 | if (s->condexec_mask) { |
6807 | cond = s->condexec_cond; | |
6808 | s->condlabel = gen_new_label(); | |
6809 | gen_test_cc[cond ^ 1](s->condlabel); | |
6810 | s->condjmp = 1; | |
6811 | } | |
6812 | ||
b5ff1b31 | 6813 | insn = lduw_code(s->pc); |
99c475ab | 6814 | s->pc += 2; |
b5ff1b31 | 6815 | |
99c475ab FB |
6816 | switch (insn >> 12) { |
6817 | case 0: case 1: | |
6818 | rd = insn & 7; | |
6819 | op = (insn >> 11) & 3; | |
6820 | if (op == 3) { | |
6821 | /* add/subtract */ | |
6822 | rn = (insn >> 3) & 7; | |
6823 | gen_movl_T0_reg(s, rn); | |
6824 | if (insn & (1 << 10)) { | |
6825 | /* immediate */ | |
6826 | gen_op_movl_T1_im((insn >> 6) & 7); | |
6827 | } else { | |
6828 | /* reg */ | |
6829 | rm = (insn >> 6) & 7; | |
6830 | gen_movl_T1_reg(s, rm); | |
6831 | } | |
9ee6e8bb PB |
6832 | if (insn & (1 << 9)) { |
6833 | if (s->condexec_mask) | |
6834 | gen_op_subl_T0_T1(); | |
6835 | else | |
6836 | gen_op_subl_T0_T1_cc(); | |
6837 | } else { | |
6838 | if (s->condexec_mask) | |
6839 | gen_op_addl_T0_T1(); | |
6840 | else | |
6841 | gen_op_addl_T0_T1_cc(); | |
6842 | } | |
99c475ab FB |
6843 | gen_movl_reg_T0(s, rd); |
6844 | } else { | |
6845 | /* shift immediate */ | |
6846 | rm = (insn >> 3) & 7; | |
6847 | shift = (insn >> 6) & 0x1f; | |
6848 | gen_movl_T0_reg(s, rm); | |
9ee6e8bb PB |
6849 | if (s->condexec_mask) |
6850 | gen_shift_T0_im_thumb[op](shift); | |
6851 | else | |
6852 | gen_shift_T0_im_thumb_cc[op](shift); | |
99c475ab FB |
6853 | gen_movl_reg_T0(s, rd); |
6854 | } | |
6855 | break; | |
6856 | case 2: case 3: | |
6857 | /* arithmetic large immediate */ | |
6858 | op = (insn >> 11) & 3; | |
6859 | rd = (insn >> 8) & 0x7; | |
6860 | if (op == 0) { | |
6861 | gen_op_movl_T0_im(insn & 0xff); | |
6862 | } else { | |
6863 | gen_movl_T0_reg(s, rd); | |
6864 | gen_op_movl_T1_im(insn & 0xff); | |
6865 | } | |
6866 | switch (op) { | |
6867 | case 0: /* mov */ | |
9ee6e8bb PB |
6868 | if (!s->condexec_mask) |
6869 | gen_op_logic_T0_cc(); | |
99c475ab FB |
6870 | break; |
6871 | case 1: /* cmp */ | |
6872 | gen_op_subl_T0_T1_cc(); | |
6873 | break; | |
6874 | case 2: /* add */ | |
9ee6e8bb PB |
6875 | if (s->condexec_mask) |
6876 | gen_op_addl_T0_T1(); | |
6877 | else | |
6878 | gen_op_addl_T0_T1_cc(); | |
99c475ab FB |
6879 | break; |
6880 | case 3: /* sub */ | |
9ee6e8bb PB |
6881 | if (s->condexec_mask) |
6882 | gen_op_subl_T0_T1(); | |
6883 | else | |
6884 | gen_op_subl_T0_T1_cc(); | |
99c475ab FB |
6885 | break; |
6886 | } | |
6887 | if (op != 1) | |
6888 | gen_movl_reg_T0(s, rd); | |
6889 | break; | |
6890 | case 4: | |
6891 | if (insn & (1 << 11)) { | |
6892 | rd = (insn >> 8) & 7; | |
5899f386 FB |
6893 | /* load pc-relative. Bit 1 of PC is ignored. */ |
6894 | val = s->pc + 2 + ((insn & 0xff) * 4); | |
6895 | val &= ~(uint32_t)2; | |
99c475ab | 6896 | gen_op_movl_T1_im(val); |
b5ff1b31 | 6897 | gen_ldst(ldl, s); |
99c475ab FB |
6898 | gen_movl_reg_T0(s, rd); |
6899 | break; | |
6900 | } | |
6901 | if (insn & (1 << 10)) { | |
6902 | /* data processing extended or blx */ | |
6903 | rd = (insn & 7) | ((insn >> 4) & 8); | |
6904 | rm = (insn >> 3) & 0xf; | |
6905 | op = (insn >> 8) & 3; | |
6906 | switch (op) { | |
6907 | case 0: /* add */ | |
6908 | gen_movl_T0_reg(s, rd); | |
6909 | gen_movl_T1_reg(s, rm); | |
6910 | gen_op_addl_T0_T1(); | |
6911 | gen_movl_reg_T0(s, rd); | |
6912 | break; | |
6913 | case 1: /* cmp */ | |
6914 | gen_movl_T0_reg(s, rd); | |
6915 | gen_movl_T1_reg(s, rm); | |
6916 | gen_op_subl_T0_T1_cc(); | |
6917 | break; | |
6918 | case 2: /* mov/cpy */ | |
6919 | gen_movl_T0_reg(s, rm); | |
6920 | gen_movl_reg_T0(s, rd); | |
6921 | break; | |
6922 | case 3:/* branch [and link] exchange thumb register */ | |
6923 | if (insn & (1 << 7)) { | |
6924 | val = (uint32_t)s->pc | 1; | |
6925 | gen_op_movl_T1_im(val); | |
6926 | gen_movl_reg_T1(s, 14); | |
6927 | } | |
6928 | gen_movl_T0_reg(s, rm); | |
6929 | gen_bx(s); | |
6930 | break; | |
6931 | } | |
6932 | break; | |
6933 | } | |
6934 | ||
6935 | /* data processing register */ | |
6936 | rd = insn & 7; | |
6937 | rm = (insn >> 3) & 7; | |
6938 | op = (insn >> 6) & 0xf; | |
6939 | if (op == 2 || op == 3 || op == 4 || op == 7) { | |
6940 | /* the shift/rotate ops want the operands backwards */ | |
6941 | val = rm; | |
6942 | rm = rd; | |
6943 | rd = val; | |
6944 | val = 1; | |
6945 | } else { | |
6946 | val = 0; | |
6947 | } | |
6948 | ||
6949 | if (op == 9) /* neg */ | |
6950 | gen_op_movl_T0_im(0); | |
6951 | else if (op != 0xf) /* mvn doesn't read its first operand */ | |
6952 | gen_movl_T0_reg(s, rd); | |
6953 | ||
6954 | gen_movl_T1_reg(s, rm); | |
5899f386 | 6955 | switch (op) { |
99c475ab FB |
6956 | case 0x0: /* and */ |
6957 | gen_op_andl_T0_T1(); | |
9ee6e8bb PB |
6958 | if (!s->condexec_mask) |
6959 | gen_op_logic_T0_cc(); | |
99c475ab FB |
6960 | break; |
6961 | case 0x1: /* eor */ | |
6962 | gen_op_xorl_T0_T1(); | |
9ee6e8bb PB |
6963 | if (!s->condexec_mask) |
6964 | gen_op_logic_T0_cc(); | |
99c475ab FB |
6965 | break; |
6966 | case 0x2: /* lsl */ | |
9ee6e8bb PB |
6967 | if (s->condexec_mask) { |
6968 | gen_op_shll_T1_T0(); | |
6969 | } else { | |
6970 | gen_op_shll_T1_T0_cc(); | |
6971 | gen_op_logic_T1_cc(); | |
6972 | } | |
99c475ab FB |
6973 | break; |
6974 | case 0x3: /* lsr */ | |
9ee6e8bb PB |
6975 | if (s->condexec_mask) { |
6976 | gen_op_shrl_T1_T0(); | |
6977 | } else { | |
6978 | gen_op_shrl_T1_T0_cc(); | |
6979 | gen_op_logic_T1_cc(); | |
6980 | } | |
99c475ab FB |
6981 | break; |
6982 | case 0x4: /* asr */ | |
9ee6e8bb PB |
6983 | if (s->condexec_mask) { |
6984 | gen_op_sarl_T1_T0(); | |
6985 | } else { | |
6986 | gen_op_sarl_T1_T0_cc(); | |
6987 | gen_op_logic_T1_cc(); | |
6988 | } | |
99c475ab FB |
6989 | break; |
6990 | case 0x5: /* adc */ | |
9ee6e8bb PB |
6991 | if (s->condexec_mask) |
6992 | gen_op_adcl_T0_T1(); | |
6993 | else | |
6994 | gen_op_adcl_T0_T1_cc(); | |
99c475ab FB |
6995 | break; |
6996 | case 0x6: /* sbc */ | |
9ee6e8bb PB |
6997 | if (s->condexec_mask) |
6998 | gen_op_sbcl_T0_T1(); | |
6999 | else | |
7000 | gen_op_sbcl_T0_T1_cc(); | |
99c475ab FB |
7001 | break; |
7002 | case 0x7: /* ror */ | |
9ee6e8bb PB |
7003 | if (s->condexec_mask) { |
7004 | gen_op_rorl_T1_T0(); | |
7005 | } else { | |
7006 | gen_op_rorl_T1_T0_cc(); | |
7007 | gen_op_logic_T1_cc(); | |
7008 | } | |
99c475ab FB |
7009 | break; |
7010 | case 0x8: /* tst */ | |
7011 | gen_op_andl_T0_T1(); | |
7012 | gen_op_logic_T0_cc(); | |
7013 | rd = 16; | |
5899f386 | 7014 | break; |
99c475ab | 7015 | case 0x9: /* neg */ |
9ee6e8bb PB |
7016 | if (s->condexec_mask) |
7017 | gen_op_subl_T0_T1(); | |
7018 | else | |
7019 | gen_op_subl_T0_T1_cc(); | |
99c475ab FB |
7020 | break; |
7021 | case 0xa: /* cmp */ | |
7022 | gen_op_subl_T0_T1_cc(); | |
7023 | rd = 16; | |
7024 | break; | |
7025 | case 0xb: /* cmn */ | |
7026 | gen_op_addl_T0_T1_cc(); | |
7027 | rd = 16; | |
7028 | break; | |
7029 | case 0xc: /* orr */ | |
7030 | gen_op_orl_T0_T1(); | |
9ee6e8bb PB |
7031 | if (!s->condexec_mask) |
7032 | gen_op_logic_T0_cc(); | |
99c475ab FB |
7033 | break; |
7034 | case 0xd: /* mul */ | |
7035 | gen_op_mull_T0_T1(); | |
9ee6e8bb PB |
7036 | if (!s->condexec_mask) |
7037 | gen_op_logic_T0_cc(); | |
99c475ab FB |
7038 | break; |
7039 | case 0xe: /* bic */ | |
7040 | gen_op_bicl_T0_T1(); | |
9ee6e8bb PB |
7041 | if (!s->condexec_mask) |
7042 | gen_op_logic_T0_cc(); | |
99c475ab FB |
7043 | break; |
7044 | case 0xf: /* mvn */ | |
7045 | gen_op_notl_T1(); | |
9ee6e8bb PB |
7046 | if (!s->condexec_mask) |
7047 | gen_op_logic_T1_cc(); | |
99c475ab | 7048 | val = 1; |
5899f386 | 7049 | rm = rd; |
99c475ab FB |
7050 | break; |
7051 | } | |
7052 | if (rd != 16) { | |
7053 | if (val) | |
5899f386 | 7054 | gen_movl_reg_T1(s, rm); |
99c475ab FB |
7055 | else |
7056 | gen_movl_reg_T0(s, rd); | |
7057 | } | |
7058 | break; | |
7059 | ||
7060 | case 5: | |
7061 | /* load/store register offset. */ | |
7062 | rd = insn & 7; | |
7063 | rn = (insn >> 3) & 7; | |
7064 | rm = (insn >> 6) & 7; | |
7065 | op = (insn >> 9) & 7; | |
7066 | gen_movl_T1_reg(s, rn); | |
7067 | gen_movl_T2_reg(s, rm); | |
7068 | gen_op_addl_T1_T2(); | |
7069 | ||
7070 | if (op < 3) /* store */ | |
7071 | gen_movl_T0_reg(s, rd); | |
7072 | ||
7073 | switch (op) { | |
7074 | case 0: /* str */ | |
b5ff1b31 | 7075 | gen_ldst(stl, s); |
99c475ab FB |
7076 | break; |
7077 | case 1: /* strh */ | |
b5ff1b31 | 7078 | gen_ldst(stw, s); |
99c475ab FB |
7079 | break; |
7080 | case 2: /* strb */ | |
b5ff1b31 | 7081 | gen_ldst(stb, s); |
99c475ab FB |
7082 | break; |
7083 | case 3: /* ldrsb */ | |
b5ff1b31 | 7084 | gen_ldst(ldsb, s); |
99c475ab FB |
7085 | break; |
7086 | case 4: /* ldr */ | |
b5ff1b31 | 7087 | gen_ldst(ldl, s); |
99c475ab FB |
7088 | break; |
7089 | case 5: /* ldrh */ | |
b5ff1b31 | 7090 | gen_ldst(lduw, s); |
99c475ab FB |
7091 | break; |
7092 | case 6: /* ldrb */ | |
b5ff1b31 | 7093 | gen_ldst(ldub, s); |
99c475ab FB |
7094 | break; |
7095 | case 7: /* ldrsh */ | |
b5ff1b31 | 7096 | gen_ldst(ldsw, s); |
99c475ab FB |
7097 | break; |
7098 | } | |
7099 | if (op >= 3) /* load */ | |
7100 | gen_movl_reg_T0(s, rd); | |
7101 | break; | |
7102 | ||
7103 | case 6: | |
7104 | /* load/store word immediate offset */ | |
7105 | rd = insn & 7; | |
7106 | rn = (insn >> 3) & 7; | |
7107 | gen_movl_T1_reg(s, rn); | |
7108 | val = (insn >> 4) & 0x7c; | |
7109 | gen_op_movl_T2_im(val); | |
7110 | gen_op_addl_T1_T2(); | |
7111 | ||
7112 | if (insn & (1 << 11)) { | |
7113 | /* load */ | |
b5ff1b31 | 7114 | gen_ldst(ldl, s); |
99c475ab FB |
7115 | gen_movl_reg_T0(s, rd); |
7116 | } else { | |
7117 | /* store */ | |
7118 | gen_movl_T0_reg(s, rd); | |
b5ff1b31 | 7119 | gen_ldst(stl, s); |
99c475ab FB |
7120 | } |
7121 | break; | |
7122 | ||
7123 | case 7: | |
7124 | /* load/store byte immediate offset */ | |
7125 | rd = insn & 7; | |
7126 | rn = (insn >> 3) & 7; | |
7127 | gen_movl_T1_reg(s, rn); | |
7128 | val = (insn >> 6) & 0x1f; | |
7129 | gen_op_movl_T2_im(val); | |
7130 | gen_op_addl_T1_T2(); | |
7131 | ||
7132 | if (insn & (1 << 11)) { | |
7133 | /* load */ | |
b5ff1b31 | 7134 | gen_ldst(ldub, s); |
99c475ab FB |
7135 | gen_movl_reg_T0(s, rd); |
7136 | } else { | |
7137 | /* store */ | |
7138 | gen_movl_T0_reg(s, rd); | |
b5ff1b31 | 7139 | gen_ldst(stb, s); |
99c475ab FB |
7140 | } |
7141 | break; | |
7142 | ||
7143 | case 8: | |
7144 | /* load/store halfword immediate offset */ | |
7145 | rd = insn & 7; | |
7146 | rn = (insn >> 3) & 7; | |
7147 | gen_movl_T1_reg(s, rn); | |
7148 | val = (insn >> 5) & 0x3e; | |
7149 | gen_op_movl_T2_im(val); | |
7150 | gen_op_addl_T1_T2(); | |
7151 | ||
7152 | if (insn & (1 << 11)) { | |
7153 | /* load */ | |
b5ff1b31 | 7154 | gen_ldst(lduw, s); |
99c475ab FB |
7155 | gen_movl_reg_T0(s, rd); |
7156 | } else { | |
7157 | /* store */ | |
7158 | gen_movl_T0_reg(s, rd); | |
b5ff1b31 | 7159 | gen_ldst(stw, s); |
99c475ab FB |
7160 | } |
7161 | break; | |
7162 | ||
7163 | case 9: | |
7164 | /* load/store from stack */ | |
7165 | rd = (insn >> 8) & 7; | |
7166 | gen_movl_T1_reg(s, 13); | |
7167 | val = (insn & 0xff) * 4; | |
7168 | gen_op_movl_T2_im(val); | |
7169 | gen_op_addl_T1_T2(); | |
7170 | ||
7171 | if (insn & (1 << 11)) { | |
7172 | /* load */ | |
b5ff1b31 | 7173 | gen_ldst(ldl, s); |
99c475ab FB |
7174 | gen_movl_reg_T0(s, rd); |
7175 | } else { | |
7176 | /* store */ | |
7177 | gen_movl_T0_reg(s, rd); | |
b5ff1b31 | 7178 | gen_ldst(stl, s); |
99c475ab FB |
7179 | } |
7180 | break; | |
7181 | ||
7182 | case 10: | |
7183 | /* add to high reg */ | |
7184 | rd = (insn >> 8) & 7; | |
5899f386 FB |
7185 | if (insn & (1 << 11)) { |
7186 | /* SP */ | |
7187 | gen_movl_T0_reg(s, 13); | |
7188 | } else { | |
7189 | /* PC. bit 1 is ignored. */ | |
7190 | gen_op_movl_T0_im((s->pc + 2) & ~(uint32_t)2); | |
7191 | } | |
99c475ab FB |
7192 | val = (insn & 0xff) * 4; |
7193 | gen_op_movl_T1_im(val); | |
7194 | gen_op_addl_T0_T1(); | |
7195 | gen_movl_reg_T0(s, rd); | |
7196 | break; | |
7197 | ||
7198 | case 11: | |
7199 | /* misc */ | |
7200 | op = (insn >> 8) & 0xf; | |
7201 | switch (op) { | |
7202 | case 0: | |
7203 | /* adjust stack pointer */ | |
7204 | gen_movl_T1_reg(s, 13); | |
7205 | val = (insn & 0x7f) * 4; | |
7206 | if (insn & (1 << 7)) | |
7207 | val = -(int32_t)val; | |
7208 | gen_op_movl_T2_im(val); | |
7209 | gen_op_addl_T1_T2(); | |
7210 | gen_movl_reg_T1(s, 13); | |
7211 | break; | |
7212 | ||
9ee6e8bb PB |
7213 | case 2: /* sign/zero extend. */ |
7214 | ARCH(6); | |
7215 | rd = insn & 7; | |
7216 | rm = (insn >> 3) & 7; | |
7217 | gen_movl_T1_reg(s, rm); | |
7218 | switch ((insn >> 6) & 3) { | |
7219 | case 0: gen_op_sxth_T1(); break; | |
7220 | case 1: gen_op_sxtb_T1(); break; | |
7221 | case 2: gen_op_uxth_T1(); break; | |
7222 | case 3: gen_op_uxtb_T1(); break; | |
7223 | } | |
7224 | gen_movl_reg_T1(s, rd); | |
7225 | break; | |
99c475ab FB |
7226 | case 4: case 5: case 0xc: case 0xd: |
7227 | /* push/pop */ | |
7228 | gen_movl_T1_reg(s, 13); | |
5899f386 FB |
7229 | if (insn & (1 << 8)) |
7230 | offset = 4; | |
99c475ab | 7231 | else |
5899f386 FB |
7232 | offset = 0; |
7233 | for (i = 0; i < 8; i++) { | |
7234 | if (insn & (1 << i)) | |
7235 | offset += 4; | |
7236 | } | |
7237 | if ((insn & (1 << 11)) == 0) { | |
7238 | gen_op_movl_T2_im(-offset); | |
7239 | gen_op_addl_T1_T2(); | |
7240 | } | |
7241 | gen_op_movl_T2_im(4); | |
99c475ab FB |
7242 | for (i = 0; i < 8; i++) { |
7243 | if (insn & (1 << i)) { | |
7244 | if (insn & (1 << 11)) { | |
7245 | /* pop */ | |
b5ff1b31 | 7246 | gen_ldst(ldl, s); |
99c475ab FB |
7247 | gen_movl_reg_T0(s, i); |
7248 | } else { | |
7249 | /* push */ | |
7250 | gen_movl_T0_reg(s, i); | |
b5ff1b31 | 7251 | gen_ldst(stl, s); |
99c475ab | 7252 | } |
5899f386 | 7253 | /* advance to the next address. */ |
99c475ab FB |
7254 | gen_op_addl_T1_T2(); |
7255 | } | |
7256 | } | |
7257 | if (insn & (1 << 8)) { | |
7258 | if (insn & (1 << 11)) { | |
7259 | /* pop pc */ | |
b5ff1b31 | 7260 | gen_ldst(ldl, s); |
99c475ab FB |
7261 | /* don't set the pc until the rest of the instruction |
7262 | has completed */ | |
7263 | } else { | |
7264 | /* push lr */ | |
7265 | gen_movl_T0_reg(s, 14); | |
b5ff1b31 | 7266 | gen_ldst(stl, s); |
99c475ab FB |
7267 | } |
7268 | gen_op_addl_T1_T2(); | |
7269 | } | |
5899f386 FB |
7270 | if ((insn & (1 << 11)) == 0) { |
7271 | gen_op_movl_T2_im(-offset); | |
7272 | gen_op_addl_T1_T2(); | |
7273 | } | |
99c475ab FB |
7274 | /* write back the new stack pointer */ |
7275 | gen_movl_reg_T1(s, 13); | |
7276 | /* set the new PC value */ | |
7277 | if ((insn & 0x0900) == 0x0900) | |
7278 | gen_bx(s); | |
7279 | break; | |
7280 | ||
9ee6e8bb PB |
7281 | case 1: case 3: case 9: case 11: /* czb */ |
7282 | rm = insn & 7; | |
7283 | gen_movl_T0_reg(s, rm); | |
7284 | s->condlabel = gen_new_label(); | |
7285 | s->condjmp = 1; | |
7286 | if (insn & (1 << 11)) | |
7287 | gen_op_testn_T0(s->condlabel); | |
7288 | else | |
7289 | gen_op_test_T0(s->condlabel); | |
7290 | ||
7291 | offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3; | |
7292 | val = (uint32_t)s->pc + 2; | |
7293 | val += offset; | |
7294 | gen_jmp(s, val); | |
7295 | break; | |
7296 | ||
7297 | case 15: /* IT, nop-hint. */ | |
7298 | if ((insn & 0xf) == 0) { | |
7299 | gen_nop_hint(s, (insn >> 4) & 0xf); | |
7300 | break; | |
7301 | } | |
7302 | /* If Then. */ | |
7303 | s->condexec_cond = (insn >> 4) & 0xe; | |
7304 | s->condexec_mask = insn & 0x1f; | |
7305 | /* No actual code generated for this insn, just setup state. */ | |
7306 | break; | |
7307 | ||
06c949e6 | 7308 | case 0xe: /* bkpt */ |
9ee6e8bb | 7309 | gen_set_condexec(s); |
06c949e6 PB |
7310 | gen_op_movl_T0_im((long)s->pc - 2); |
7311 | gen_op_movl_reg_TN[0][15](); | |
7312 | gen_op_bkpt(); | |
7313 | s->is_jmp = DISAS_JUMP; | |
7314 | break; | |
7315 | ||
9ee6e8bb PB |
7316 | case 0xa: /* rev */ |
7317 | ARCH(6); | |
7318 | rn = (insn >> 3) & 0x7; | |
7319 | rd = insn & 0x7; | |
7320 | gen_movl_T0_reg(s, rn); | |
7321 | switch ((insn >> 6) & 3) { | |
7322 | case 0: gen_op_rev_T0(); break; | |
7323 | case 1: gen_op_rev16_T0(); break; | |
7324 | case 3: gen_op_revsh_T0(); break; | |
7325 | default: goto illegal_op; | |
7326 | } | |
7327 | gen_movl_reg_T0(s, rd); | |
7328 | break; | |
7329 | ||
7330 | case 6: /* cps */ | |
7331 | ARCH(6); | |
7332 | if (IS_USER(s)) | |
7333 | break; | |
7334 | if (IS_M(env)) { | |
7335 | val = (insn & (1 << 4)) != 0; | |
7336 | gen_op_movl_T0_im(val); | |
7337 | /* PRIMASK */ | |
7338 | if (insn & 1) | |
7339 | gen_op_v7m_msr_T0(16); | |
7340 | /* FAULTMASK */ | |
7341 | if (insn & 2) | |
7342 | gen_op_v7m_msr_T0(17); | |
7343 | ||
7344 | gen_lookup_tb(s); | |
7345 | } else { | |
7346 | if (insn & (1 << 4)) | |
7347 | shift = CPSR_A | CPSR_I | CPSR_F; | |
7348 | else | |
7349 | shift = 0; | |
7350 | ||
7351 | val = ((insn & 7) << 6) & shift; | |
7352 | gen_op_movl_T0_im(val); | |
7353 | gen_set_psr_T0(s, shift, 0); | |
7354 | } | |
7355 | break; | |
7356 | ||
99c475ab FB |
7357 | default: |
7358 | goto undef; | |
7359 | } | |
7360 | break; | |
7361 | ||
7362 | case 12: | |
7363 | /* load/store multiple */ | |
7364 | rn = (insn >> 8) & 0x7; | |
7365 | gen_movl_T1_reg(s, rn); | |
7366 | gen_op_movl_T2_im(4); | |
99c475ab FB |
7367 | for (i = 0; i < 8; i++) { |
7368 | if (insn & (1 << i)) { | |
99c475ab FB |
7369 | if (insn & (1 << 11)) { |
7370 | /* load */ | |
b5ff1b31 | 7371 | gen_ldst(ldl, s); |
99c475ab FB |
7372 | gen_movl_reg_T0(s, i); |
7373 | } else { | |
7374 | /* store */ | |
7375 | gen_movl_T0_reg(s, i); | |
b5ff1b31 | 7376 | gen_ldst(stl, s); |
99c475ab | 7377 | } |
5899f386 FB |
7378 | /* advance to the next address */ |
7379 | gen_op_addl_T1_T2(); | |
99c475ab FB |
7380 | } |
7381 | } | |
5899f386 | 7382 | /* Base register writeback. */ |
b5ff1b31 FB |
7383 | if ((insn & (1 << rn)) == 0) |
7384 | gen_movl_reg_T1(s, rn); | |
99c475ab FB |
7385 | break; |
7386 | ||
7387 | case 13: | |
7388 | /* conditional branch or swi */ | |
7389 | cond = (insn >> 8) & 0xf; | |
7390 | if (cond == 0xe) | |
7391 | goto undef; | |
7392 | ||
7393 | if (cond == 0xf) { | |
7394 | /* swi */ | |
9ee6e8bb | 7395 | gen_set_condexec(s); |
99c475ab FB |
7396 | gen_op_movl_T0_im((long)s->pc | 1); |
7397 | /* Don't set r15. */ | |
7398 | gen_op_movl_reg_TN[0][15](); | |
9ee6e8bb | 7399 | s->is_jmp = DISAS_SWI; |
99c475ab FB |
7400 | break; |
7401 | } | |
7402 | /* generate a conditional jump to next instruction */ | |
e50e6a20 FB |
7403 | s->condlabel = gen_new_label(); |
7404 | gen_test_cc[cond ^ 1](s->condlabel); | |
7405 | s->condjmp = 1; | |
99c475ab FB |
7406 | gen_movl_T1_reg(s, 15); |
7407 | ||
7408 | /* jump to the offset */ | |
5899f386 | 7409 | val = (uint32_t)s->pc + 2; |
99c475ab | 7410 | offset = ((int32_t)insn << 24) >> 24; |
5899f386 | 7411 | val += offset << 1; |
8aaca4c0 | 7412 | gen_jmp(s, val); |
99c475ab FB |
7413 | break; |
7414 | ||
7415 | case 14: | |
358bf29e | 7416 | if (insn & (1 << 11)) { |
9ee6e8bb PB |
7417 | if (disas_thumb2_insn(env, s, insn)) |
7418 | goto undef32; | |
358bf29e PB |
7419 | break; |
7420 | } | |
9ee6e8bb | 7421 | /* unconditional branch */ |
99c475ab FB |
7422 | val = (uint32_t)s->pc; |
7423 | offset = ((int32_t)insn << 21) >> 21; | |
7424 | val += (offset << 1) + 2; | |
8aaca4c0 | 7425 | gen_jmp(s, val); |
99c475ab FB |
7426 | break; |
7427 | ||
7428 | case 15: | |
9ee6e8bb PB |
7429 | if (disas_thumb2_insn(env, s, insn)) |
7430 | goto undef32; | |
7431 | break; | |
99c475ab FB |
7432 | } |
7433 | return; | |
9ee6e8bb PB |
7434 | undef32: |
7435 | gen_set_condexec(s); | |
7436 | gen_op_movl_T0_im((long)s->pc - 4); | |
7437 | gen_op_movl_reg_TN[0][15](); | |
7438 | gen_op_undef_insn(); | |
7439 | s->is_jmp = DISAS_JUMP; | |
7440 | return; | |
7441 | illegal_op: | |
99c475ab | 7442 | undef: |
9ee6e8bb | 7443 | gen_set_condexec(s); |
5899f386 | 7444 | gen_op_movl_T0_im((long)s->pc - 2); |
99c475ab FB |
7445 | gen_op_movl_reg_TN[0][15](); |
7446 | gen_op_undef_insn(); | |
7447 | s->is_jmp = DISAS_JUMP; | |
7448 | } | |
7449 | ||
2c0262af FB |
7450 | /* generate intermediate code in gen_opc_buf and gen_opparam_buf for |
7451 | basic block 'tb'. If search_pc is TRUE, also generate PC | |
7452 | information for each intermediate instruction. */ | |
5fafdf24 TS |
7453 | static inline int gen_intermediate_code_internal(CPUState *env, |
7454 | TranslationBlock *tb, | |
2c0262af FB |
7455 | int search_pc) |
7456 | { | |
7457 | DisasContext dc1, *dc = &dc1; | |
7458 | uint16_t *gen_opc_end; | |
7459 | int j, lj; | |
0fa85d43 | 7460 | target_ulong pc_start; |
b5ff1b31 | 7461 | uint32_t next_page_start; |
3b46e624 | 7462 | |
2c0262af | 7463 | /* generate intermediate code */ |
0fa85d43 | 7464 | pc_start = tb->pc; |
3b46e624 | 7465 | |
2c0262af FB |
7466 | dc->tb = tb; |
7467 | ||
2c0262af | 7468 | gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
2c0262af FB |
7469 | |
7470 | dc->is_jmp = DISAS_NEXT; | |
7471 | dc->pc = pc_start; | |
8aaca4c0 | 7472 | dc->singlestep_enabled = env->singlestep_enabled; |
e50e6a20 | 7473 | dc->condjmp = 0; |
5899f386 | 7474 | dc->thumb = env->thumb; |
9ee6e8bb PB |
7475 | dc->condexec_mask = (env->condexec_bits & 0xf) << 1; |
7476 | dc->condexec_cond = env->condexec_bits >> 4; | |
6658ffb8 | 7477 | dc->is_mem = 0; |
b5ff1b31 | 7478 | #if !defined(CONFIG_USER_ONLY) |
9ee6e8bb PB |
7479 | if (IS_M(env)) { |
7480 | dc->user = ((env->v7m.exception == 0) && (env->v7m.control & 1)); | |
7481 | } else { | |
7482 | dc->user = (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR; | |
7483 | } | |
b5ff1b31 FB |
7484 | #endif |
7485 | next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; | |
2c0262af | 7486 | lj = -1; |
9ee6e8bb PB |
7487 | /* Reset the conditional execution bits immediately. This avoids |
7488 | complications trying to do it at the end of the block. */ | |
7489 | if (env->condexec_bits) | |
7490 | gen_op_set_condexec(0); | |
2c0262af | 7491 | do { |
9ee6e8bb PB |
7492 | #ifndef CONFIG_USER_ONLY |
7493 | if (dc->pc >= 0xfffffff0 && IS_M(env)) { | |
7494 | /* We always get here via a jump, so know we are not in a | |
7495 | conditional execution block. */ | |
7496 | gen_op_exception_exit(); | |
7497 | } | |
7498 | #endif | |
7499 | ||
1fddef4b FB |
7500 | if (env->nb_breakpoints > 0) { |
7501 | for(j = 0; j < env->nb_breakpoints; j++) { | |
7502 | if (env->breakpoints[j] == dc->pc) { | |
9ee6e8bb | 7503 | gen_set_condexec(dc); |
1fddef4b FB |
7504 | gen_op_movl_T0_im((long)dc->pc); |
7505 | gen_op_movl_reg_TN[0][15](); | |
7506 | gen_op_debug(); | |
7507 | dc->is_jmp = DISAS_JUMP; | |
9ee6e8bb PB |
7508 | /* Advance PC so that clearing the breakpoint will |
7509 | invalidate this TB. */ | |
7510 | dc->pc += 2; | |
7511 | goto done_generating; | |
1fddef4b FB |
7512 | break; |
7513 | } | |
7514 | } | |
7515 | } | |
2c0262af FB |
7516 | if (search_pc) { |
7517 | j = gen_opc_ptr - gen_opc_buf; | |
7518 | if (lj < j) { | |
7519 | lj++; | |
7520 | while (lj < j) | |
7521 | gen_opc_instr_start[lj++] = 0; | |
7522 | } | |
0fa85d43 | 7523 | gen_opc_pc[lj] = dc->pc; |
2c0262af FB |
7524 | gen_opc_instr_start[lj] = 1; |
7525 | } | |
e50e6a20 | 7526 | |
9ee6e8bb PB |
7527 | if (env->thumb) { |
7528 | disas_thumb_insn(env, dc); | |
7529 | if (dc->condexec_mask) { | |
7530 | dc->condexec_cond = (dc->condexec_cond & 0xe) | |
7531 | | ((dc->condexec_mask >> 4) & 1); | |
7532 | dc->condexec_mask = (dc->condexec_mask << 1) & 0x1f; | |
7533 | if (dc->condexec_mask == 0) { | |
7534 | dc->condexec_cond = 0; | |
7535 | } | |
7536 | } | |
7537 | } else { | |
7538 | disas_arm_insn(env, dc); | |
7539 | } | |
e50e6a20 FB |
7540 | |
7541 | if (dc->condjmp && !dc->is_jmp) { | |
7542 | gen_set_label(dc->condlabel); | |
7543 | dc->condjmp = 0; | |
7544 | } | |
6658ffb8 PB |
7545 | /* Terminate the TB on memory ops if watchpoints are present. */ |
7546 | /* FIXME: This should be replacd by the deterministic execution | |
7547 | * IRQ raising bits. */ | |
7548 | if (dc->is_mem && env->nb_watchpoints) | |
7549 | break; | |
7550 | ||
e50e6a20 FB |
7551 | /* Translation stops when a conditional branch is enoutered. |
7552 | * Otherwise the subsequent code could get translated several times. | |
b5ff1b31 FB |
7553 | * Also stop translation when a page boundary is reached. This |
7554 | * ensures prefech aborts occur at the right place. */ | |
1fddef4b FB |
7555 | } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end && |
7556 | !env->singlestep_enabled && | |
b5ff1b31 | 7557 | dc->pc < next_page_start); |
9ee6e8bb | 7558 | |
b5ff1b31 | 7559 | /* At this stage dc->condjmp will only be set when the skipped |
9ee6e8bb PB |
7560 | instruction was a conditional branch or trap, and the PC has |
7561 | already been written. */ | |
8aaca4c0 FB |
7562 | if (__builtin_expect(env->singlestep_enabled, 0)) { |
7563 | /* Make sure the pc is updated, and raise a debug exception. */ | |
e50e6a20 | 7564 | if (dc->condjmp) { |
9ee6e8bb PB |
7565 | gen_set_condexec(dc); |
7566 | if (dc->is_jmp == DISAS_SWI) { | |
7567 | gen_op_swi(); | |
7568 | } else { | |
7569 | gen_op_debug(); | |
7570 | } | |
e50e6a20 FB |
7571 | gen_set_label(dc->condlabel); |
7572 | } | |
7573 | if (dc->condjmp || !dc->is_jmp) { | |
8aaca4c0 FB |
7574 | gen_op_movl_T0_im((long)dc->pc); |
7575 | gen_op_movl_reg_TN[0][15](); | |
e50e6a20 | 7576 | dc->condjmp = 0; |
8aaca4c0 | 7577 | } |
9ee6e8bb PB |
7578 | gen_set_condexec(dc); |
7579 | if (dc->is_jmp == DISAS_SWI && !dc->condjmp) { | |
7580 | gen_op_swi(); | |
7581 | } else { | |
7582 | /* FIXME: Single stepping a WFI insn will not halt | |
7583 | the CPU. */ | |
7584 | gen_op_debug(); | |
7585 | } | |
8aaca4c0 | 7586 | } else { |
9ee6e8bb PB |
7587 | /* While branches must always occur at the end of an IT block, |
7588 | there are a few other things that can cause us to terminate | |
7589 | the TB in the middel of an IT block: | |
7590 | - Exception generating instructions (bkpt, swi, undefined). | |
7591 | - Page boundaries. | |
7592 | - Hardware watchpoints. | |
7593 | Hardware breakpoints have already been handled and skip this code. | |
7594 | */ | |
7595 | gen_set_condexec(dc); | |
8aaca4c0 | 7596 | switch(dc->is_jmp) { |
8aaca4c0 | 7597 | case DISAS_NEXT: |
6e256c93 | 7598 | gen_goto_tb(dc, 1, dc->pc); |
8aaca4c0 FB |
7599 | break; |
7600 | default: | |
7601 | case DISAS_JUMP: | |
7602 | case DISAS_UPDATE: | |
7603 | /* indicate that the hash table must be used to find the next TB */ | |
57fec1fe | 7604 | tcg_gen_exit_tb(0); |
8aaca4c0 FB |
7605 | break; |
7606 | case DISAS_TB_JUMP: | |
7607 | /* nothing more to generate */ | |
7608 | break; | |
9ee6e8bb PB |
7609 | case DISAS_WFI: |
7610 | gen_op_wfi(); | |
7611 | break; | |
7612 | case DISAS_SWI: | |
7613 | gen_op_swi(); | |
7614 | break; | |
8aaca4c0 | 7615 | } |
e50e6a20 FB |
7616 | if (dc->condjmp) { |
7617 | gen_set_label(dc->condlabel); | |
9ee6e8bb | 7618 | gen_set_condexec(dc); |
6e256c93 | 7619 | gen_goto_tb(dc, 1, dc->pc); |
e50e6a20 FB |
7620 | dc->condjmp = 0; |
7621 | } | |
2c0262af | 7622 | } |
9ee6e8bb | 7623 | done_generating: |
2c0262af FB |
7624 | *gen_opc_ptr = INDEX_op_end; |
7625 | ||
7626 | #ifdef DEBUG_DISAS | |
e19e89a5 | 7627 | if (loglevel & CPU_LOG_TB_IN_ASM) { |
2c0262af FB |
7628 | fprintf(logfile, "----------------\n"); |
7629 | fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start)); | |
5899f386 | 7630 | target_disas(logfile, pc_start, dc->pc - pc_start, env->thumb); |
2c0262af FB |
7631 | fprintf(logfile, "\n"); |
7632 | } | |
7633 | #endif | |
b5ff1b31 FB |
7634 | if (search_pc) { |
7635 | j = gen_opc_ptr - gen_opc_buf; | |
7636 | lj++; | |
7637 | while (lj <= j) | |
7638 | gen_opc_instr_start[lj++] = 0; | |
b5ff1b31 | 7639 | } else { |
2c0262af | 7640 | tb->size = dc->pc - pc_start; |
b5ff1b31 | 7641 | } |
2c0262af FB |
7642 | return 0; |
7643 | } | |
7644 | ||
7645 | int gen_intermediate_code(CPUState *env, TranslationBlock *tb) | |
7646 | { | |
7647 | return gen_intermediate_code_internal(env, tb, 0); | |
7648 | } | |
7649 | ||
7650 | int gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb) | |
7651 | { | |
7652 | return gen_intermediate_code_internal(env, tb, 1); | |
7653 | } | |
7654 | ||
b5ff1b31 FB |
7655 | static const char *cpu_mode_names[16] = { |
7656 | "usr", "fiq", "irq", "svc", "???", "???", "???", "abt", | |
7657 | "???", "???", "???", "und", "???", "???", "???", "sys" | |
7658 | }; | |
9ee6e8bb | 7659 | |
5fafdf24 | 7660 | void cpu_dump_state(CPUState *env, FILE *f, |
7fe48483 FB |
7661 | int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
7662 | int flags) | |
2c0262af FB |
7663 | { |
7664 | int i; | |
bc380d17 | 7665 | union { |
b7bcbe95 FB |
7666 | uint32_t i; |
7667 | float s; | |
7668 | } s0, s1; | |
7669 | CPU_DoubleU d; | |
a94a6abf PB |
7670 | /* ??? This assumes float64 and double have the same layout. |
7671 | Oh well, it's only debug dumps. */ | |
7672 | union { | |
7673 | float64 f64; | |
7674 | double d; | |
7675 | } d0; | |
b5ff1b31 | 7676 | uint32_t psr; |
2c0262af FB |
7677 | |
7678 | for(i=0;i<16;i++) { | |
7fe48483 | 7679 | cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]); |
2c0262af | 7680 | if ((i % 4) == 3) |
7fe48483 | 7681 | cpu_fprintf(f, "\n"); |
2c0262af | 7682 | else |
7fe48483 | 7683 | cpu_fprintf(f, " "); |
2c0262af | 7684 | } |
b5ff1b31 | 7685 | psr = cpsr_read(env); |
687fa640 TS |
7686 | cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n", |
7687 | psr, | |
b5ff1b31 FB |
7688 | psr & (1 << 31) ? 'N' : '-', |
7689 | psr & (1 << 30) ? 'Z' : '-', | |
7690 | psr & (1 << 29) ? 'C' : '-', | |
7691 | psr & (1 << 28) ? 'V' : '-', | |
5fafdf24 | 7692 | psr & CPSR_T ? 'T' : 'A', |
b5ff1b31 | 7693 | cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26); |
b7bcbe95 FB |
7694 | |
7695 | for (i = 0; i < 16; i++) { | |
8e96005d FB |
7696 | d.d = env->vfp.regs[i]; |
7697 | s0.i = d.l.lower; | |
7698 | s1.i = d.l.upper; | |
a94a6abf PB |
7699 | d0.f64 = d.d; |
7700 | cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g) d%02d=%08x%08x(%8g)\n", | |
b7bcbe95 | 7701 | i * 2, (int)s0.i, s0.s, |
a94a6abf | 7702 | i * 2 + 1, (int)s1.i, s1.s, |
b7bcbe95 | 7703 | i, (int)(uint32_t)d.l.upper, (int)(uint32_t)d.l.lower, |
a94a6abf | 7704 | d0.d); |
b7bcbe95 | 7705 | } |
40f137e1 | 7706 | cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]); |
2c0262af | 7707 | } |
a6b025d3 | 7708 |