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2c0262af FB |
1 | /* |
2 | * i386 micro operations | |
5fafdf24 | 3 | * |
2c0262af FB |
4 | * Copyright (c) 2003 Fabrice Bellard |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
f68dd770 | 20 | |
f68dd770 | 21 | #define ASM_SOFTMMU |
2c0262af FB |
22 | #include "exec.h" |
23 | ||
2c0262af FB |
24 | /* we define the various pieces of code used by the JIT */ |
25 | ||
26 | #define REG EAX | |
27 | #define REGNAME _EAX | |
28 | #include "opreg_template.h" | |
29 | #undef REG | |
30 | #undef REGNAME | |
31 | ||
32 | #define REG ECX | |
33 | #define REGNAME _ECX | |
34 | #include "opreg_template.h" | |
35 | #undef REG | |
36 | #undef REGNAME | |
37 | ||
38 | #define REG EDX | |
39 | #define REGNAME _EDX | |
40 | #include "opreg_template.h" | |
41 | #undef REG | |
42 | #undef REGNAME | |
43 | ||
44 | #define REG EBX | |
45 | #define REGNAME _EBX | |
46 | #include "opreg_template.h" | |
47 | #undef REG | |
48 | #undef REGNAME | |
49 | ||
50 | #define REG ESP | |
51 | #define REGNAME _ESP | |
52 | #include "opreg_template.h" | |
53 | #undef REG | |
54 | #undef REGNAME | |
55 | ||
56 | #define REG EBP | |
57 | #define REGNAME _EBP | |
58 | #include "opreg_template.h" | |
59 | #undef REG | |
60 | #undef REGNAME | |
61 | ||
62 | #define REG ESI | |
63 | #define REGNAME _ESI | |
64 | #include "opreg_template.h" | |
65 | #undef REG | |
66 | #undef REGNAME | |
67 | ||
68 | #define REG EDI | |
69 | #define REGNAME _EDI | |
70 | #include "opreg_template.h" | |
71 | #undef REG | |
72 | #undef REGNAME | |
73 | ||
14ce26e7 FB |
74 | #ifdef TARGET_X86_64 |
75 | ||
76 | #define REG (env->regs[8]) | |
77 | #define REGNAME _R8 | |
78 | #include "opreg_template.h" | |
79 | #undef REG | |
80 | #undef REGNAME | |
81 | ||
82 | #define REG (env->regs[9]) | |
83 | #define REGNAME _R9 | |
84 | #include "opreg_template.h" | |
85 | #undef REG | |
86 | #undef REGNAME | |
87 | ||
88 | #define REG (env->regs[10]) | |
89 | #define REGNAME _R10 | |
90 | #include "opreg_template.h" | |
91 | #undef REG | |
92 | #undef REGNAME | |
93 | ||
94 | #define REG (env->regs[11]) | |
95 | #define REGNAME _R11 | |
96 | #include "opreg_template.h" | |
97 | #undef REG | |
98 | #undef REGNAME | |
99 | ||
100 | #define REG (env->regs[12]) | |
101 | #define REGNAME _R12 | |
102 | #include "opreg_template.h" | |
103 | #undef REG | |
104 | #undef REGNAME | |
105 | ||
106 | #define REG (env->regs[13]) | |
107 | #define REGNAME _R13 | |
108 | #include "opreg_template.h" | |
109 | #undef REG | |
110 | #undef REGNAME | |
111 | ||
112 | #define REG (env->regs[14]) | |
113 | #define REGNAME _R14 | |
114 | #include "opreg_template.h" | |
115 | #undef REG | |
116 | #undef REGNAME | |
117 | ||
118 | #define REG (env->regs[15]) | |
119 | #define REGNAME _R15 | |
120 | #include "opreg_template.h" | |
121 | #undef REG | |
122 | #undef REGNAME | |
123 | ||
124 | #endif | |
125 | ||
2c0262af | 126 | /* multiply/divide */ |
d36cd60e FB |
127 | |
128 | /* XXX: add eflags optimizations */ | |
129 | /* XXX: add non P4 style flags */ | |
130 | ||
2c0262af FB |
131 | void OPPROTO op_mulb_AL_T0(void) |
132 | { | |
133 | unsigned int res; | |
134 | res = (uint8_t)EAX * (uint8_t)T0; | |
14ce26e7 | 135 | EAX = (EAX & ~0xffff) | res; |
d36cd60e | 136 | CC_DST = res; |
2c0262af FB |
137 | CC_SRC = (res & 0xff00); |
138 | } | |
139 | ||
140 | void OPPROTO op_imulb_AL_T0(void) | |
141 | { | |
142 | int res; | |
143 | res = (int8_t)EAX * (int8_t)T0; | |
14ce26e7 | 144 | EAX = (EAX & ~0xffff) | (res & 0xffff); |
d36cd60e | 145 | CC_DST = res; |
2c0262af FB |
146 | CC_SRC = (res != (int8_t)res); |
147 | } | |
148 | ||
149 | void OPPROTO op_mulw_AX_T0(void) | |
150 | { | |
151 | unsigned int res; | |
152 | res = (uint16_t)EAX * (uint16_t)T0; | |
14ce26e7 FB |
153 | EAX = (EAX & ~0xffff) | (res & 0xffff); |
154 | EDX = (EDX & ~0xffff) | ((res >> 16) & 0xffff); | |
d36cd60e | 155 | CC_DST = res; |
2c0262af FB |
156 | CC_SRC = res >> 16; |
157 | } | |
158 | ||
159 | void OPPROTO op_imulw_AX_T0(void) | |
160 | { | |
161 | int res; | |
162 | res = (int16_t)EAX * (int16_t)T0; | |
14ce26e7 FB |
163 | EAX = (EAX & ~0xffff) | (res & 0xffff); |
164 | EDX = (EDX & ~0xffff) | ((res >> 16) & 0xffff); | |
d36cd60e | 165 | CC_DST = res; |
2c0262af FB |
166 | CC_SRC = (res != (int16_t)res); |
167 | } | |
168 | ||
169 | void OPPROTO op_mull_EAX_T0(void) | |
170 | { | |
171 | uint64_t res; | |
172 | res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0); | |
14ce26e7 FB |
173 | EAX = (uint32_t)res; |
174 | EDX = (uint32_t)(res >> 32); | |
175 | CC_DST = (uint32_t)res; | |
176 | CC_SRC = (uint32_t)(res >> 32); | |
2c0262af FB |
177 | } |
178 | ||
179 | void OPPROTO op_imull_EAX_T0(void) | |
180 | { | |
181 | int64_t res; | |
182 | res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0); | |
31313213 FB |
183 | EAX = (uint32_t)(res); |
184 | EDX = (uint32_t)(res >> 32); | |
d36cd60e | 185 | CC_DST = res; |
2c0262af FB |
186 | CC_SRC = (res != (int32_t)res); |
187 | } | |
188 | ||
189 | void OPPROTO op_imulw_T0_T1(void) | |
190 | { | |
191 | int res; | |
192 | res = (int16_t)T0 * (int16_t)T1; | |
193 | T0 = res; | |
d36cd60e | 194 | CC_DST = res; |
2c0262af FB |
195 | CC_SRC = (res != (int16_t)res); |
196 | } | |
197 | ||
198 | void OPPROTO op_imull_T0_T1(void) | |
199 | { | |
200 | int64_t res; | |
201 | res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1); | |
202 | T0 = res; | |
d36cd60e | 203 | CC_DST = res; |
2c0262af FB |
204 | CC_SRC = (res != (int32_t)res); |
205 | } | |
206 | ||
14ce26e7 FB |
207 | #ifdef TARGET_X86_64 |
208 | void OPPROTO op_mulq_EAX_T0(void) | |
209 | { | |
b8b6a50b | 210 | helper_mulq_EAX_T0(T0); |
14ce26e7 FB |
211 | } |
212 | ||
213 | void OPPROTO op_imulq_EAX_T0(void) | |
214 | { | |
b8b6a50b | 215 | helper_imulq_EAX_T0(T0); |
14ce26e7 FB |
216 | } |
217 | ||
218 | void OPPROTO op_imulq_T0_T1(void) | |
219 | { | |
b8b6a50b | 220 | T0 = helper_imulq_T0_T1(T0, T1); |
14ce26e7 FB |
221 | } |
222 | #endif | |
223 | ||
2c0262af FB |
224 | /* constant load & misc op */ |
225 | ||
14ce26e7 | 226 | /* XXX: consistent names */ |
2c0262af FB |
227 | void OPPROTO op_into(void) |
228 | { | |
229 | int eflags; | |
230 | eflags = cc_table[CC_OP].compute_all(); | |
231 | if (eflags & CC_O) { | |
232 | raise_interrupt(EXCP04_INTO, 1, 0, PARAM1); | |
233 | } | |
234 | FORCE_RET(); | |
235 | } | |
236 | ||
2c0262af FB |
237 | void OPPROTO op_cmpxchg8b(void) |
238 | { | |
b8b6a50b | 239 | helper_cmpxchg8b(A0); |
2c0262af FB |
240 | } |
241 | ||
2c0262af FB |
242 | /* multiple size ops */ |
243 | ||
244 | #define ldul ldl | |
245 | ||
246 | #define SHIFT 0 | |
247 | #include "ops_template.h" | |
248 | #undef SHIFT | |
249 | ||
250 | #define SHIFT 1 | |
251 | #include "ops_template.h" | |
252 | #undef SHIFT | |
253 | ||
254 | #define SHIFT 2 | |
255 | #include "ops_template.h" | |
256 | #undef SHIFT | |
257 | ||
14ce26e7 FB |
258 | #ifdef TARGET_X86_64 |
259 | ||
260 | #define SHIFT 3 | |
261 | #include "ops_template.h" | |
262 | #undef SHIFT | |
263 | ||
264 | #endif | |
265 | ||
2c0262af FB |
266 | /* sign extend */ |
267 | ||
268 | void OPPROTO op_movsbl_T0_T0(void) | |
269 | { | |
270 | T0 = (int8_t)T0; | |
271 | } | |
272 | ||
273 | void OPPROTO op_movzbl_T0_T0(void) | |
274 | { | |
275 | T0 = (uint8_t)T0; | |
276 | } | |
277 | ||
278 | void OPPROTO op_movswl_T0_T0(void) | |
279 | { | |
280 | T0 = (int16_t)T0; | |
281 | } | |
282 | ||
283 | void OPPROTO op_movzwl_T0_T0(void) | |
284 | { | |
285 | T0 = (uint16_t)T0; | |
286 | } | |
287 | ||
288 | void OPPROTO op_movswl_EAX_AX(void) | |
289 | { | |
0499e4a0 | 290 | EAX = (uint32_t)((int16_t)EAX); |
2c0262af FB |
291 | } |
292 | ||
14ce26e7 | 293 | #ifdef TARGET_X86_64 |
664e0f19 FB |
294 | void OPPROTO op_movslq_T0_T0(void) |
295 | { | |
296 | T0 = (int32_t)T0; | |
297 | } | |
298 | ||
14ce26e7 FB |
299 | void OPPROTO op_movslq_RAX_EAX(void) |
300 | { | |
301 | EAX = (int32_t)EAX; | |
302 | } | |
303 | #endif | |
304 | ||
2c0262af FB |
305 | void OPPROTO op_movsbw_AX_AL(void) |
306 | { | |
14ce26e7 | 307 | EAX = (EAX & ~0xffff) | ((int8_t)EAX & 0xffff); |
2c0262af FB |
308 | } |
309 | ||
310 | void OPPROTO op_movslq_EDX_EAX(void) | |
311 | { | |
0499e4a0 | 312 | EDX = (uint32_t)((int32_t)EAX >> 31); |
2c0262af FB |
313 | } |
314 | ||
315 | void OPPROTO op_movswl_DX_AX(void) | |
316 | { | |
14ce26e7 FB |
317 | EDX = (EDX & ~0xffff) | (((int16_t)EAX >> 15) & 0xffff); |
318 | } | |
319 | ||
320 | #ifdef TARGET_X86_64 | |
321 | void OPPROTO op_movsqo_RDX_RAX(void) | |
322 | { | |
323 | EDX = (int64_t)EAX >> 63; | |
2c0262af | 324 | } |
14ce26e7 | 325 | #endif |
2c0262af FB |
326 | |
327 | /* string ops helpers */ | |
328 | ||
329 | void OPPROTO op_addl_ESI_T0(void) | |
330 | { | |
14ce26e7 | 331 | ESI = (uint32_t)(ESI + T0); |
2c0262af FB |
332 | } |
333 | ||
334 | void OPPROTO op_addw_ESI_T0(void) | |
335 | { | |
336 | ESI = (ESI & ~0xffff) | ((ESI + T0) & 0xffff); | |
337 | } | |
338 | ||
339 | void OPPROTO op_addl_EDI_T0(void) | |
340 | { | |
14ce26e7 | 341 | EDI = (uint32_t)(EDI + T0); |
2c0262af FB |
342 | } |
343 | ||
344 | void OPPROTO op_addw_EDI_T0(void) | |
345 | { | |
346 | EDI = (EDI & ~0xffff) | ((EDI + T0) & 0xffff); | |
347 | } | |
348 | ||
349 | void OPPROTO op_decl_ECX(void) | |
350 | { | |
14ce26e7 | 351 | ECX = (uint32_t)(ECX - 1); |
2c0262af FB |
352 | } |
353 | ||
354 | void OPPROTO op_decw_ECX(void) | |
355 | { | |
356 | ECX = (ECX & ~0xffff) | ((ECX - 1) & 0xffff); | |
357 | } | |
358 | ||
14ce26e7 FB |
359 | #ifdef TARGET_X86_64 |
360 | void OPPROTO op_addq_ESI_T0(void) | |
361 | { | |
362 | ESI = (ESI + T0); | |
363 | } | |
364 | ||
365 | void OPPROTO op_addq_EDI_T0(void) | |
366 | { | |
367 | EDI = (EDI + T0); | |
368 | } | |
369 | ||
370 | void OPPROTO op_decq_ECX(void) | |
371 | { | |
372 | ECX--; | |
373 | } | |
374 | #endif | |
375 | ||
2c0262af FB |
376 | /* bcd */ |
377 | ||
2c0262af FB |
378 | void OPPROTO op_aam(void) |
379 | { | |
b5b38f61 | 380 | helper_aam(PARAM1); |
2c0262af FB |
381 | } |
382 | ||
383 | void OPPROTO op_aad(void) | |
384 | { | |
b5b38f61 | 385 | helper_aad(PARAM1); |
2c0262af FB |
386 | } |
387 | ||
388 | void OPPROTO op_aaa(void) | |
389 | { | |
b5b38f61 | 390 | helper_aaa(); |
2c0262af FB |
391 | } |
392 | ||
393 | void OPPROTO op_aas(void) | |
394 | { | |
b5b38f61 | 395 | helper_aas(); |
2c0262af FB |
396 | } |
397 | ||
398 | void OPPROTO op_daa(void) | |
399 | { | |
b5b38f61 | 400 | helper_daa(); |
2c0262af FB |
401 | } |
402 | ||
403 | void OPPROTO op_das(void) | |
404 | { | |
b5b38f61 | 405 | helper_das(); |
2c0262af FB |
406 | } |
407 | ||
408 | /* segment handling */ | |
409 | ||
2c0262af FB |
410 | /* faster VM86 version */ |
411 | void OPPROTO op_movl_seg_T0_vm(void) | |
412 | { | |
413 | int selector; | |
414 | SegmentCache *sc; | |
3b46e624 | 415 | |
2c0262af FB |
416 | selector = T0 & 0xffff; |
417 | /* env->segs[] access */ | |
418 | sc = (SegmentCache *)((char *)env + PARAM1); | |
419 | sc->selector = selector; | |
14ce26e7 | 420 | sc->base = (selector << 4); |
2c0262af FB |
421 | } |
422 | ||
423 | void OPPROTO op_movl_T0_seg(void) | |
424 | { | |
425 | T0 = env->segs[PARAM1].selector; | |
426 | } | |
427 | ||
2c0262af FB |
428 | void OPPROTO op_lsl(void) |
429 | { | |
b8b6a50b FB |
430 | uint32_t val; |
431 | val = helper_lsl(T0); | |
432 | if (CC_SRC & CC_Z) | |
433 | T1 = val; | |
434 | FORCE_RET(); | |
2c0262af FB |
435 | } |
436 | ||
437 | void OPPROTO op_lar(void) | |
438 | { | |
b8b6a50b FB |
439 | uint32_t val; |
440 | val = helper_lar(T0); | |
441 | if (CC_SRC & CC_Z) | |
442 | T1 = val; | |
443 | FORCE_RET(); | |
2c0262af FB |
444 | } |
445 | ||
3ab493de FB |
446 | void OPPROTO op_verr(void) |
447 | { | |
b5b38f61 | 448 | helper_verr(T0); |
3ab493de FB |
449 | } |
450 | ||
451 | void OPPROTO op_verw(void) | |
452 | { | |
b5b38f61 | 453 | helper_verw(T0); |
3ab493de FB |
454 | } |
455 | ||
456 | void OPPROTO op_arpl(void) | |
457 | { | |
458 | if ((T0 & 3) < (T1 & 3)) { | |
459 | /* XXX: emulate bug or 0xff3f0000 oring as in bochs ? */ | |
460 | T0 = (T0 & ~3) | (T1 & 3); | |
461 | T1 = CC_Z; | |
462 | } else { | |
463 | T1 = 0; | |
464 | } | |
465 | FORCE_RET(); | |
466 | } | |
3b46e624 | 467 | |
3ab493de FB |
468 | void OPPROTO op_arpl_update(void) |
469 | { | |
470 | int eflags; | |
471 | eflags = cc_table[CC_OP].compute_all(); | |
472 | CC_SRC = (eflags & ~CC_Z) | T1; | |
473 | } | |
3b46e624 | 474 | |
2c0262af FB |
475 | void OPPROTO op_movl_T0_env(void) |
476 | { | |
477 | T0 = *(uint32_t *)((char *)env + PARAM1); | |
478 | } | |
479 | ||
480 | void OPPROTO op_movl_env_T0(void) | |
481 | { | |
482 | *(uint32_t *)((char *)env + PARAM1) = T0; | |
483 | } | |
484 | ||
485 | void OPPROTO op_movl_env_T1(void) | |
486 | { | |
487 | *(uint32_t *)((char *)env + PARAM1) = T1; | |
488 | } | |
489 | ||
14ce26e7 FB |
490 | void OPPROTO op_movtl_T0_env(void) |
491 | { | |
492 | T0 = *(target_ulong *)((char *)env + PARAM1); | |
493 | } | |
494 | ||
495 | void OPPROTO op_movtl_env_T0(void) | |
496 | { | |
497 | *(target_ulong *)((char *)env + PARAM1) = T0; | |
498 | } | |
499 | ||
500 | void OPPROTO op_movtl_T1_env(void) | |
501 | { | |
502 | T1 = *(target_ulong *)((char *)env + PARAM1); | |
503 | } | |
504 | ||
505 | void OPPROTO op_movtl_env_T1(void) | |
506 | { | |
507 | *(target_ulong *)((char *)env + PARAM1) = T1; | |
508 | } | |
509 | ||
2c0262af FB |
510 | /* flags handling */ |
511 | ||
14ce26e7 FB |
512 | void OPPROTO op_jmp_label(void) |
513 | { | |
514 | GOTO_LABEL_PARAM(1); | |
2c0262af FB |
515 | } |
516 | ||
14ce26e7 | 517 | void OPPROTO op_jnz_T0_label(void) |
2c0262af FB |
518 | { |
519 | if (T0) | |
14ce26e7 | 520 | GOTO_LABEL_PARAM(1); |
39c61f49 | 521 | FORCE_RET(); |
14ce26e7 FB |
522 | } |
523 | ||
524 | void OPPROTO op_jz_T0_label(void) | |
525 | { | |
526 | if (!T0) | |
527 | GOTO_LABEL_PARAM(1); | |
39c61f49 | 528 | FORCE_RET(); |
2c0262af FB |
529 | } |
530 | ||
531 | /* slow set cases (compute x86 flags) */ | |
532 | void OPPROTO op_seto_T0_cc(void) | |
533 | { | |
534 | int eflags; | |
535 | eflags = cc_table[CC_OP].compute_all(); | |
536 | T0 = (eflags >> 11) & 1; | |
537 | } | |
538 | ||
539 | void OPPROTO op_setb_T0_cc(void) | |
540 | { | |
541 | T0 = cc_table[CC_OP].compute_c(); | |
542 | } | |
543 | ||
544 | void OPPROTO op_setz_T0_cc(void) | |
545 | { | |
546 | int eflags; | |
547 | eflags = cc_table[CC_OP].compute_all(); | |
548 | T0 = (eflags >> 6) & 1; | |
549 | } | |
550 | ||
551 | void OPPROTO op_setbe_T0_cc(void) | |
552 | { | |
553 | int eflags; | |
554 | eflags = cc_table[CC_OP].compute_all(); | |
555 | T0 = (eflags & (CC_Z | CC_C)) != 0; | |
556 | } | |
557 | ||
558 | void OPPROTO op_sets_T0_cc(void) | |
559 | { | |
560 | int eflags; | |
561 | eflags = cc_table[CC_OP].compute_all(); | |
562 | T0 = (eflags >> 7) & 1; | |
563 | } | |
564 | ||
565 | void OPPROTO op_setp_T0_cc(void) | |
566 | { | |
567 | int eflags; | |
568 | eflags = cc_table[CC_OP].compute_all(); | |
569 | T0 = (eflags >> 2) & 1; | |
570 | } | |
571 | ||
572 | void OPPROTO op_setl_T0_cc(void) | |
573 | { | |
574 | int eflags; | |
575 | eflags = cc_table[CC_OP].compute_all(); | |
576 | T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1; | |
577 | } | |
578 | ||
579 | void OPPROTO op_setle_T0_cc(void) | |
580 | { | |
581 | int eflags; | |
582 | eflags = cc_table[CC_OP].compute_all(); | |
583 | T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0; | |
584 | } | |
585 | ||
586 | void OPPROTO op_xor_T0_1(void) | |
587 | { | |
588 | T0 ^= 1; | |
589 | } | |
590 | ||
0b9dc5e4 FB |
591 | void OPPROTO op_mov_T0_cc(void) |
592 | { | |
593 | T0 = cc_table[CC_OP].compute_all(); | |
594 | } | |
595 | ||
4136f33c | 596 | /* XXX: clear VIF/VIP in all ops ? */ |
2c0262af FB |
597 | |
598 | void OPPROTO op_movl_eflags_T0(void) | |
599 | { | |
4b7aba51 | 600 | load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | NT_MASK)); |
2c0262af FB |
601 | } |
602 | ||
603 | void OPPROTO op_movw_eflags_T0(void) | |
604 | { | |
4b7aba51 | 605 | load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | NT_MASK) & 0xffff); |
4136f33c FB |
606 | } |
607 | ||
608 | void OPPROTO op_movl_eflags_T0_io(void) | |
609 | { | |
4b7aba51 | 610 | load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | NT_MASK | IF_MASK)); |
4136f33c FB |
611 | } |
612 | ||
613 | void OPPROTO op_movw_eflags_T0_io(void) | |
614 | { | |
4b7aba51 | 615 | load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | NT_MASK | IF_MASK) & 0xffff); |
2c0262af FB |
616 | } |
617 | ||
618 | void OPPROTO op_movl_eflags_T0_cpl0(void) | |
619 | { | |
4b7aba51 | 620 | load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | NT_MASK | IF_MASK | IOPL_MASK)); |
2c0262af FB |
621 | } |
622 | ||
623 | void OPPROTO op_movw_eflags_T0_cpl0(void) | |
624 | { | |
4b7aba51 | 625 | load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | NT_MASK | IF_MASK | IOPL_MASK) & 0xffff); |
2c0262af FB |
626 | } |
627 | ||
628 | #if 0 | |
629 | /* vm86plus version */ | |
630 | void OPPROTO op_movw_eflags_T0_vm(void) | |
631 | { | |
632 | int eflags; | |
633 | eflags = T0; | |
634 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
635 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
636 | /* we also update some system flags as in user mode */ | |
637 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) | | |
638 | (eflags & FL_UPDATE_MASK16); | |
639 | if (eflags & IF_MASK) { | |
640 | env->eflags |= VIF_MASK; | |
641 | if (env->eflags & VIP_MASK) { | |
642 | EIP = PARAM1; | |
643 | raise_exception(EXCP0D_GPF); | |
644 | } | |
645 | } | |
646 | FORCE_RET(); | |
647 | } | |
648 | ||
649 | void OPPROTO op_movl_eflags_T0_vm(void) | |
650 | { | |
651 | int eflags; | |
652 | eflags = T0; | |
653 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
654 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
655 | /* we also update some system flags as in user mode */ | |
656 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) | | |
657 | (eflags & FL_UPDATE_MASK32); | |
658 | if (eflags & IF_MASK) { | |
659 | env->eflags |= VIF_MASK; | |
660 | if (env->eflags & VIP_MASK) { | |
661 | EIP = PARAM1; | |
662 | raise_exception(EXCP0D_GPF); | |
663 | } | |
664 | } | |
665 | FORCE_RET(); | |
666 | } | |
667 | #endif | |
668 | ||
669 | /* XXX: compute only O flag */ | |
670 | void OPPROTO op_movb_eflags_T0(void) | |
671 | { | |
672 | int of; | |
673 | of = cc_table[CC_OP].compute_all() & CC_O; | |
674 | CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of; | |
675 | } | |
676 | ||
677 | void OPPROTO op_movl_T0_eflags(void) | |
678 | { | |
679 | int eflags; | |
680 | eflags = cc_table[CC_OP].compute_all(); | |
681 | eflags |= (DF & DF_MASK); | |
682 | eflags |= env->eflags & ~(VM_MASK | RF_MASK); | |
683 | T0 = eflags; | |
684 | } | |
685 | ||
686 | /* vm86plus version */ | |
687 | #if 0 | |
688 | void OPPROTO op_movl_T0_eflags_vm(void) | |
689 | { | |
690 | int eflags; | |
691 | eflags = cc_table[CC_OP].compute_all(); | |
692 | eflags |= (DF & DF_MASK); | |
693 | eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK); | |
694 | if (env->eflags & VIF_MASK) | |
695 | eflags |= IF_MASK; | |
696 | T0 = eflags; | |
697 | } | |
698 | #endif | |
699 | ||
2c0262af FB |
700 | void OPPROTO op_clc(void) |
701 | { | |
702 | int eflags; | |
703 | eflags = cc_table[CC_OP].compute_all(); | |
704 | eflags &= ~CC_C; | |
705 | CC_SRC = eflags; | |
706 | } | |
707 | ||
708 | void OPPROTO op_stc(void) | |
709 | { | |
710 | int eflags; | |
711 | eflags = cc_table[CC_OP].compute_all(); | |
712 | eflags |= CC_C; | |
713 | CC_SRC = eflags; | |
714 | } | |
715 | ||
716 | void OPPROTO op_cmc(void) | |
717 | { | |
718 | int eflags; | |
719 | eflags = cc_table[CC_OP].compute_all(); | |
720 | eflags ^= CC_C; | |
721 | CC_SRC = eflags; | |
722 | } | |
723 | ||
724 | void OPPROTO op_salc(void) | |
725 | { | |
726 | int cf; | |
727 | cf = cc_table[CC_OP].compute_c(); | |
728 | EAX = (EAX & ~0xff) | ((-cf) & 0xff); | |
729 | } | |
730 | ||
19e6c4b8 | 731 | void OPPROTO op_fcomi_dummy(void) |
2c0262af | 732 | { |
19e6c4b8 | 733 | T0 = 0; |
2c0262af FB |
734 | } |
735 | ||
14ce26e7 | 736 | /* SSE support */ |
5af45186 | 737 | void OPPROTO op_com_dummy(void) |
14ce26e7 | 738 | { |
5af45186 | 739 | T0 = 0; |
664e0f19 | 740 | } |