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7d13299d FB |
1 | /* |
2 | * i386 micro operations | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * | |
3ef693a0 FB |
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. | |
7d13299d | 10 | * |
3ef693a0 FB |
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. | |
7d13299d | 15 | * |
3ef693a0 FB |
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 | |
7d13299d FB |
19 | */ |
20 | #include "exec-i386.h" | |
7bfdb6d1 | 21 | |
367e86e8 FB |
22 | /* n must be a constant to be efficient */ |
23 | static inline int lshift(int x, int n) | |
7bfdb6d1 | 24 | { |
367e86e8 FB |
25 | if (n >= 0) |
26 | return x << n; | |
27 | else | |
28 | return x >> (-n); | |
7bfdb6d1 | 29 | } |
7bfdb6d1 FB |
30 | |
31 | /* we define the various pieces of code used by the JIT */ | |
32 | ||
33 | #define REG EAX | |
34 | #define REGNAME _EAX | |
35 | #include "opreg_template.h" | |
36 | #undef REG | |
37 | #undef REGNAME | |
38 | ||
39 | #define REG ECX | |
40 | #define REGNAME _ECX | |
41 | #include "opreg_template.h" | |
42 | #undef REG | |
43 | #undef REGNAME | |
44 | ||
45 | #define REG EDX | |
46 | #define REGNAME _EDX | |
47 | #include "opreg_template.h" | |
48 | #undef REG | |
49 | #undef REGNAME | |
50 | ||
51 | #define REG EBX | |
52 | #define REGNAME _EBX | |
53 | #include "opreg_template.h" | |
54 | #undef REG | |
55 | #undef REGNAME | |
56 | ||
57 | #define REG ESP | |
58 | #define REGNAME _ESP | |
59 | #include "opreg_template.h" | |
60 | #undef REG | |
61 | #undef REGNAME | |
62 | ||
63 | #define REG EBP | |
64 | #define REGNAME _EBP | |
65 | #include "opreg_template.h" | |
66 | #undef REG | |
67 | #undef REGNAME | |
68 | ||
69 | #define REG ESI | |
70 | #define REGNAME _ESI | |
71 | #include "opreg_template.h" | |
72 | #undef REG | |
73 | #undef REGNAME | |
74 | ||
75 | #define REG EDI | |
76 | #define REGNAME _EDI | |
77 | #include "opreg_template.h" | |
78 | #undef REG | |
79 | #undef REGNAME | |
80 | ||
dc99065b | 81 | /* operations with flags */ |
7bfdb6d1 | 82 | |
5797fa5d FB |
83 | /* update flags with T0 and T1 (add/sub case) */ |
84 | void OPPROTO op_update2_cc(void) | |
7bfdb6d1 | 85 | { |
5797fa5d | 86 | CC_SRC = T1; |
7bfdb6d1 FB |
87 | CC_DST = T0; |
88 | } | |
89 | ||
5797fa5d FB |
90 | /* update flags with T0 (logic operation case) */ |
91 | void OPPROTO op_update1_cc(void) | |
7bfdb6d1 | 92 | { |
7bfdb6d1 FB |
93 | CC_DST = T0; |
94 | } | |
95 | ||
5797fa5d | 96 | void OPPROTO op_update_neg_cc(void) |
7bfdb6d1 | 97 | { |
5797fa5d | 98 | CC_SRC = -T0; |
7bfdb6d1 FB |
99 | CC_DST = T0; |
100 | } | |
101 | ||
102 | void OPPROTO op_cmpl_T0_T1_cc(void) | |
103 | { | |
5797fa5d | 104 | CC_SRC = T1; |
7bfdb6d1 FB |
105 | CC_DST = T0 - T1; |
106 | } | |
107 | ||
5797fa5d | 108 | void OPPROTO op_update_inc_cc(void) |
7bfdb6d1 | 109 | { |
4b74fe1f | 110 | CC_SRC = cc_table[CC_OP].compute_c(); |
7bfdb6d1 FB |
111 | CC_DST = T0; |
112 | } | |
113 | ||
114 | void OPPROTO op_testl_T0_T1_cc(void) | |
115 | { | |
7bfdb6d1 FB |
116 | CC_DST = T0 & T1; |
117 | } | |
118 | ||
dc99065b FB |
119 | /* operations without flags */ |
120 | ||
121 | void OPPROTO op_addl_T0_T1(void) | |
122 | { | |
123 | T0 += T1; | |
124 | } | |
125 | ||
126 | void OPPROTO op_orl_T0_T1(void) | |
127 | { | |
128 | T0 |= T1; | |
129 | } | |
130 | ||
131 | void OPPROTO op_andl_T0_T1(void) | |
132 | { | |
133 | T0 &= T1; | |
134 | } | |
135 | ||
136 | void OPPROTO op_subl_T0_T1(void) | |
137 | { | |
138 | T0 -= T1; | |
139 | } | |
140 | ||
141 | void OPPROTO op_xorl_T0_T1(void) | |
142 | { | |
143 | T0 ^= T1; | |
144 | } | |
145 | ||
146 | void OPPROTO op_negl_T0(void) | |
147 | { | |
148 | T0 = -T0; | |
149 | } | |
150 | ||
151 | void OPPROTO op_incl_T0(void) | |
152 | { | |
153 | T0++; | |
154 | } | |
155 | ||
156 | void OPPROTO op_decl_T0(void) | |
157 | { | |
158 | T0--; | |
159 | } | |
160 | ||
161 | void OPPROTO op_notl_T0(void) | |
162 | { | |
163 | T0 = ~T0; | |
164 | } | |
165 | ||
4b74fe1f FB |
166 | void OPPROTO op_bswapl_T0(void) |
167 | { | |
168 | T0 = bswap32(T0); | |
169 | } | |
170 | ||
7bfdb6d1 FB |
171 | /* multiply/divide */ |
172 | void OPPROTO op_mulb_AL_T0(void) | |
173 | { | |
174 | unsigned int res; | |
175 | res = (uint8_t)EAX * (uint8_t)T0; | |
176 | EAX = (EAX & 0xffff0000) | res; | |
177 | CC_SRC = (res & 0xff00); | |
178 | } | |
179 | ||
180 | void OPPROTO op_imulb_AL_T0(void) | |
181 | { | |
182 | int res; | |
183 | res = (int8_t)EAX * (int8_t)T0; | |
184 | EAX = (EAX & 0xffff0000) | (res & 0xffff); | |
185 | CC_SRC = (res != (int8_t)res); | |
186 | } | |
187 | ||
188 | void OPPROTO op_mulw_AX_T0(void) | |
189 | { | |
190 | unsigned int res; | |
191 | res = (uint16_t)EAX * (uint16_t)T0; | |
192 | EAX = (EAX & 0xffff0000) | (res & 0xffff); | |
193 | EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff); | |
194 | CC_SRC = res >> 16; | |
195 | } | |
196 | ||
197 | void OPPROTO op_imulw_AX_T0(void) | |
198 | { | |
199 | int res; | |
200 | res = (int16_t)EAX * (int16_t)T0; | |
201 | EAX = (EAX & 0xffff0000) | (res & 0xffff); | |
202 | EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff); | |
203 | CC_SRC = (res != (int16_t)res); | |
204 | } | |
205 | ||
206 | void OPPROTO op_mull_EAX_T0(void) | |
207 | { | |
208 | uint64_t res; | |
209 | res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0); | |
210 | EAX = res; | |
211 | EDX = res >> 32; | |
212 | CC_SRC = res >> 32; | |
213 | } | |
214 | ||
215 | void OPPROTO op_imull_EAX_T0(void) | |
216 | { | |
217 | int64_t res; | |
218 | res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0); | |
219 | EAX = res; | |
220 | EDX = res >> 32; | |
221 | CC_SRC = (res != (int32_t)res); | |
222 | } | |
223 | ||
224 | void OPPROTO op_imulw_T0_T1(void) | |
225 | { | |
226 | int res; | |
227 | res = (int16_t)T0 * (int16_t)T1; | |
228 | T0 = res; | |
229 | CC_SRC = (res != (int16_t)res); | |
230 | } | |
231 | ||
232 | void OPPROTO op_imull_T0_T1(void) | |
233 | { | |
234 | int64_t res; | |
4b74fe1f | 235 | res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1); |
7bfdb6d1 FB |
236 | T0 = res; |
237 | CC_SRC = (res != (int32_t)res); | |
238 | } | |
239 | ||
240 | /* division, flags are undefined */ | |
9de5e440 | 241 | /* XXX: add exceptions for overflow */ |
87f4827e | 242 | |
7bfdb6d1 FB |
243 | void OPPROTO op_divb_AL_T0(void) |
244 | { | |
245 | unsigned int num, den, q, r; | |
246 | ||
247 | num = (EAX & 0xffff); | |
248 | den = (T0 & 0xff); | |
f4beb510 FB |
249 | if (den == 0) { |
250 | EIP = PARAM1; | |
9de5e440 | 251 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 252 | } |
7bfdb6d1 FB |
253 | q = (num / den) & 0xff; |
254 | r = (num % den) & 0xff; | |
255 | EAX = (EAX & 0xffff0000) | (r << 8) | q; | |
256 | } | |
257 | ||
258 | void OPPROTO op_idivb_AL_T0(void) | |
259 | { | |
260 | int num, den, q, r; | |
261 | ||
262 | num = (int16_t)EAX; | |
263 | den = (int8_t)T0; | |
f4beb510 FB |
264 | if (den == 0) { |
265 | EIP = PARAM1; | |
9de5e440 | 266 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 267 | } |
7bfdb6d1 FB |
268 | q = (num / den) & 0xff; |
269 | r = (num % den) & 0xff; | |
270 | EAX = (EAX & 0xffff0000) | (r << 8) | q; | |
271 | } | |
272 | ||
273 | void OPPROTO op_divw_AX_T0(void) | |
274 | { | |
275 | unsigned int num, den, q, r; | |
276 | ||
277 | num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); | |
278 | den = (T0 & 0xffff); | |
f4beb510 FB |
279 | if (den == 0) { |
280 | EIP = PARAM1; | |
9de5e440 | 281 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 282 | } |
7bfdb6d1 FB |
283 | q = (num / den) & 0xffff; |
284 | r = (num % den) & 0xffff; | |
285 | EAX = (EAX & 0xffff0000) | q; | |
286 | EDX = (EDX & 0xffff0000) | r; | |
287 | } | |
288 | ||
289 | void OPPROTO op_idivw_AX_T0(void) | |
290 | { | |
291 | int num, den, q, r; | |
292 | ||
293 | num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); | |
294 | den = (int16_t)T0; | |
f4beb510 FB |
295 | if (den == 0) { |
296 | EIP = PARAM1; | |
9de5e440 | 297 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 298 | } |
7bfdb6d1 FB |
299 | q = (num / den) & 0xffff; |
300 | r = (num % den) & 0xffff; | |
301 | EAX = (EAX & 0xffff0000) | q; | |
302 | EDX = (EDX & 0xffff0000) | r; | |
303 | } | |
304 | ||
305 | void OPPROTO op_divl_EAX_T0(void) | |
306 | { | |
87f4827e | 307 | helper_divl_EAX_T0(PARAM1); |
7bfdb6d1 FB |
308 | } |
309 | ||
310 | void OPPROTO op_idivl_EAX_T0(void) | |
311 | { | |
87f4827e | 312 | helper_idivl_EAX_T0(PARAM1); |
7bfdb6d1 FB |
313 | } |
314 | ||
dab2ed99 | 315 | /* constant load & misc op */ |
7bfdb6d1 | 316 | |
ba1c6e37 | 317 | void OPPROTO op_movl_T0_im(void) |
7bfdb6d1 FB |
318 | { |
319 | T0 = PARAM1; | |
320 | } | |
321 | ||
dab2ed99 FB |
322 | void OPPROTO op_addl_T0_im(void) |
323 | { | |
324 | T0 += PARAM1; | |
325 | } | |
326 | ||
327 | void OPPROTO op_andl_T0_ffff(void) | |
328 | { | |
329 | T0 = T0 & 0xffff; | |
330 | } | |
331 | ||
d8bc1fd0 FB |
332 | void OPPROTO op_andl_T0_im(void) |
333 | { | |
334 | T0 = T0 & PARAM1; | |
335 | } | |
336 | ||
dab2ed99 FB |
337 | void OPPROTO op_movl_T0_T1(void) |
338 | { | |
339 | T0 = T1; | |
340 | } | |
341 | ||
ba1c6e37 | 342 | void OPPROTO op_movl_T1_im(void) |
7bfdb6d1 FB |
343 | { |
344 | T1 = PARAM1; | |
345 | } | |
346 | ||
dab2ed99 FB |
347 | void OPPROTO op_addl_T1_im(void) |
348 | { | |
349 | T1 += PARAM1; | |
350 | } | |
351 | ||
352 | void OPPROTO op_movl_T1_A0(void) | |
353 | { | |
354 | T1 = A0; | |
355 | } | |
356 | ||
ba1c6e37 | 357 | void OPPROTO op_movl_A0_im(void) |
7bfdb6d1 FB |
358 | { |
359 | A0 = PARAM1; | |
360 | } | |
361 | ||
4b74fe1f FB |
362 | void OPPROTO op_addl_A0_im(void) |
363 | { | |
364 | A0 += PARAM1; | |
365 | } | |
366 | ||
31bb950b FB |
367 | void OPPROTO op_addl_A0_AL(void) |
368 | { | |
369 | A0 += (EAX & 0xff); | |
370 | } | |
371 | ||
4b74fe1f FB |
372 | void OPPROTO op_andl_A0_ffff(void) |
373 | { | |
374 | A0 = A0 & 0xffff; | |
375 | } | |
376 | ||
7bfdb6d1 FB |
377 | /* memory access */ |
378 | ||
33417e70 FB |
379 | #define MEMSUFFIX |
380 | #include "ops_mem.h" | |
7bfdb6d1 | 381 | |
33417e70 FB |
382 | #define MEMSUFFIX _user |
383 | #include "ops_mem.h" | |
7bfdb6d1 | 384 | |
33417e70 FB |
385 | #define MEMSUFFIX _kernel |
386 | #include "ops_mem.h" | |
7bfdb6d1 | 387 | |
4b74fe1f FB |
388 | /* used for bit operations */ |
389 | ||
390 | void OPPROTO op_add_bitw_A0_T1(void) | |
391 | { | |
392 | A0 += ((int32_t)T1 >> 4) << 1; | |
393 | } | |
394 | ||
395 | void OPPROTO op_add_bitl_A0_T1(void) | |
396 | { | |
397 | A0 += ((int32_t)T1 >> 5) << 2; | |
398 | } | |
7bfdb6d1 FB |
399 | |
400 | /* indirect jump */ | |
0ecfa993 | 401 | |
7bfdb6d1 FB |
402 | void OPPROTO op_jmp_T0(void) |
403 | { | |
dab2ed99 | 404 | EIP = T0; |
7bfdb6d1 FB |
405 | } |
406 | ||
407 | void OPPROTO op_jmp_im(void) | |
408 | { | |
dab2ed99 | 409 | EIP = PARAM1; |
7bfdb6d1 FB |
410 | } |
411 | ||
90a9fdae FB |
412 | void OPPROTO op_hlt(void) |
413 | { | |
414 | env->exception_index = EXCP_HLT; | |
415 | cpu_loop_exit(); | |
416 | } | |
417 | ||
4c3a88a2 FB |
418 | void OPPROTO op_debug(void) |
419 | { | |
420 | env->exception_index = EXCP_DEBUG; | |
421 | cpu_loop_exit(); | |
422 | } | |
423 | ||
f4beb510 | 424 | void OPPROTO op_raise_interrupt(void) |
0ecfa993 | 425 | { |
504e56eb | 426 | int intno; |
f4beb510 | 427 | unsigned int next_eip; |
504e56eb | 428 | intno = PARAM1; |
f4beb510 FB |
429 | next_eip = PARAM2; |
430 | raise_interrupt(intno, 1, 0, next_eip); | |
0ecfa993 FB |
431 | } |
432 | ||
564c8f99 | 433 | void OPPROTO op_raise_exception(void) |
0ecfa993 | 434 | { |
564c8f99 FB |
435 | int exception_index; |
436 | exception_index = PARAM1; | |
437 | raise_exception(exception_index); | |
0ecfa993 FB |
438 | } |
439 | ||
440 | void OPPROTO op_into(void) | |
441 | { | |
442 | int eflags; | |
443 | eflags = cc_table[CC_OP].compute_all(); | |
444 | if (eflags & CC_O) { | |
f4beb510 | 445 | raise_interrupt(EXCP04_INTO, 1, 0, PARAM1); |
a4a0ffdb | 446 | } |
504e56eb | 447 | FORCE_RET(); |
a4a0ffdb FB |
448 | } |
449 | ||
504e56eb FB |
450 | void OPPROTO op_cli(void) |
451 | { | |
452 | env->eflags &= ~IF_MASK; | |
453 | } | |
454 | ||
f631ef9b FB |
455 | void OPPROTO op_sti(void) |
456 | { | |
504e56eb | 457 | env->eflags |= IF_MASK; |
f631ef9b FB |
458 | } |
459 | ||
3f337316 FB |
460 | void OPPROTO op_set_inhibit_irq(void) |
461 | { | |
462 | env->hflags |= HF_INHIBIT_IRQ_MASK; | |
463 | } | |
464 | ||
465 | void OPPROTO op_reset_inhibit_irq(void) | |
466 | { | |
467 | env->hflags &= ~HF_INHIBIT_IRQ_MASK; | |
468 | } | |
469 | ||
3acace13 | 470 | #if 0 |
f631ef9b | 471 | /* vm86plus instructions */ |
f631ef9b FB |
472 | void OPPROTO op_cli_vm(void) |
473 | { | |
474 | env->eflags &= ~VIF_MASK; | |
475 | } | |
476 | ||
477 | void OPPROTO op_sti_vm(void) | |
478 | { | |
479 | env->eflags |= VIF_MASK; | |
480 | if (env->eflags & VIP_MASK) { | |
481 | EIP = PARAM1; | |
482 | raise_exception(EXCP0D_GPF); | |
483 | } | |
484 | FORCE_RET(); | |
485 | } | |
3acace13 | 486 | #endif |
f631ef9b | 487 | |
a4a0ffdb FB |
488 | void OPPROTO op_boundw(void) |
489 | { | |
490 | int low, high, v; | |
491 | low = ldsw((uint8_t *)A0); | |
492 | high = ldsw((uint8_t *)A0 + 2); | |
493 | v = (int16_t)T0; | |
f4beb510 FB |
494 | if (v < low || v > high) { |
495 | EIP = PARAM1; | |
a4a0ffdb | 496 | raise_exception(EXCP05_BOUND); |
f4beb510 | 497 | } |
a4a0ffdb FB |
498 | FORCE_RET(); |
499 | } | |
500 | ||
501 | void OPPROTO op_boundl(void) | |
502 | { | |
503 | int low, high, v; | |
504 | low = ldl((uint8_t *)A0); | |
505 | high = ldl((uint8_t *)A0 + 4); | |
506 | v = T0; | |
f4beb510 FB |
507 | if (v < low || v > high) { |
508 | EIP = PARAM1; | |
a4a0ffdb | 509 | raise_exception(EXCP05_BOUND); |
f4beb510 | 510 | } |
a4a0ffdb FB |
511 | FORCE_RET(); |
512 | } | |
513 | ||
514 | void OPPROTO op_cmpxchg8b(void) | |
515 | { | |
87f4827e | 516 | helper_cmpxchg8b(); |
0ecfa993 FB |
517 | } |
518 | ||
f513a41a | 519 | void OPPROTO op_jmp(void) |
d4e8164f | 520 | { |
f513a41a | 521 | JUMP_TB(op_jmp, PARAM1, 0, PARAM2); |
d4e8164f FB |
522 | } |
523 | ||
524 | void OPPROTO op_movl_T0_0(void) | |
525 | { | |
526 | T0 = 0; | |
527 | } | |
528 | ||
9621339d FB |
529 | void OPPROTO op_exit_tb(void) |
530 | { | |
531 | EXIT_TB(); | |
532 | } | |
533 | ||
d4e8164f | 534 | /* multiple size ops */ |
7bfdb6d1 FB |
535 | |
536 | #define ldul ldl | |
537 | ||
7bfdb6d1 | 538 | #define SHIFT 0 |
367e86e8 | 539 | #include "ops_template.h" |
7bfdb6d1 FB |
540 | #undef SHIFT |
541 | ||
7bfdb6d1 | 542 | #define SHIFT 1 |
367e86e8 | 543 | #include "ops_template.h" |
7bfdb6d1 FB |
544 | #undef SHIFT |
545 | ||
7bfdb6d1 | 546 | #define SHIFT 2 |
367e86e8 | 547 | #include "ops_template.h" |
7bfdb6d1 FB |
548 | #undef SHIFT |
549 | ||
550 | /* sign extend */ | |
551 | ||
552 | void OPPROTO op_movsbl_T0_T0(void) | |
553 | { | |
554 | T0 = (int8_t)T0; | |
555 | } | |
556 | ||
557 | void OPPROTO op_movzbl_T0_T0(void) | |
558 | { | |
559 | T0 = (uint8_t)T0; | |
560 | } | |
561 | ||
562 | void OPPROTO op_movswl_T0_T0(void) | |
563 | { | |
564 | T0 = (int16_t)T0; | |
565 | } | |
566 | ||
567 | void OPPROTO op_movzwl_T0_T0(void) | |
568 | { | |
569 | T0 = (uint16_t)T0; | |
570 | } | |
571 | ||
572 | void OPPROTO op_movswl_EAX_AX(void) | |
573 | { | |
574 | EAX = (int16_t)EAX; | |
575 | } | |
576 | ||
577 | void OPPROTO op_movsbw_AX_AL(void) | |
578 | { | |
579 | EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff); | |
580 | } | |
581 | ||
582 | void OPPROTO op_movslq_EDX_EAX(void) | |
583 | { | |
584 | EDX = (int32_t)EAX >> 31; | |
585 | } | |
586 | ||
587 | void OPPROTO op_movswl_DX_AX(void) | |
588 | { | |
589 | EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff); | |
590 | } | |
591 | ||
33417e70 FB |
592 | /* string ops helpers */ |
593 | ||
594 | void OPPROTO op_addl_ESI_T0(void) | |
595 | { | |
596 | ESI += T0; | |
597 | } | |
598 | ||
599 | void OPPROTO op_addw_ESI_T0(void) | |
600 | { | |
601 | ESI = (ESI & ~0xffff) | ((ESI + T0) & 0xffff); | |
602 | } | |
603 | ||
604 | void OPPROTO op_addl_EDI_T0(void) | |
605 | { | |
606 | EDI += T0; | |
607 | } | |
608 | ||
609 | void OPPROTO op_addw_EDI_T0(void) | |
610 | { | |
611 | EDI = (EDI & ~0xffff) | ((EDI + T0) & 0xffff); | |
612 | } | |
613 | ||
614 | void OPPROTO op_decl_ECX(void) | |
615 | { | |
616 | ECX--; | |
617 | } | |
618 | ||
619 | void OPPROTO op_decw_ECX(void) | |
620 | { | |
621 | ECX = (ECX & ~0xffff) | ((ECX - 1) & 0xffff); | |
622 | } | |
623 | ||
7bfdb6d1 | 624 | /* push/pop */ |
7bfdb6d1 FB |
625 | |
626 | void op_pushl_T0(void) | |
627 | { | |
628 | uint32_t offset; | |
629 | offset = ESP - 4; | |
630 | stl((void *)offset, T0); | |
631 | /* modify ESP after to handle exceptions correctly */ | |
632 | ESP = offset; | |
633 | } | |
634 | ||
dab2ed99 FB |
635 | void op_pushw_T0(void) |
636 | { | |
637 | uint32_t offset; | |
638 | offset = ESP - 2; | |
639 | stw((void *)offset, T0); | |
640 | /* modify ESP after to handle exceptions correctly */ | |
641 | ESP = offset; | |
642 | } | |
643 | ||
644 | void op_pushl_ss32_T0(void) | |
7bfdb6d1 FB |
645 | { |
646 | uint32_t offset; | |
647 | offset = ESP - 4; | |
d8bc1fd0 | 648 | stl(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
649 | /* modify ESP after to handle exceptions correctly */ |
650 | ESP = offset; | |
651 | } | |
652 | ||
653 | void op_pushw_ss32_T0(void) | |
654 | { | |
655 | uint32_t offset; | |
656 | offset = ESP - 2; | |
d8bc1fd0 | 657 | stw(env->segs[R_SS].base + offset, T0); |
7bfdb6d1 FB |
658 | /* modify ESP after to handle exceptions correctly */ |
659 | ESP = offset; | |
660 | } | |
661 | ||
dab2ed99 FB |
662 | void op_pushl_ss16_T0(void) |
663 | { | |
664 | uint32_t offset; | |
665 | offset = (ESP - 4) & 0xffff; | |
d8bc1fd0 | 666 | stl(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
667 | /* modify ESP after to handle exceptions correctly */ |
668 | ESP = (ESP & ~0xffff) | offset; | |
669 | } | |
670 | ||
671 | void op_pushw_ss16_T0(void) | |
672 | { | |
673 | uint32_t offset; | |
674 | offset = (ESP - 2) & 0xffff; | |
d8bc1fd0 | 675 | stw(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
676 | /* modify ESP after to handle exceptions correctly */ |
677 | ESP = (ESP & ~0xffff) | offset; | |
678 | } | |
679 | ||
680 | /* NOTE: ESP update is done after */ | |
7bfdb6d1 FB |
681 | void op_popl_T0(void) |
682 | { | |
683 | T0 = ldl((void *)ESP); | |
dab2ed99 FB |
684 | } |
685 | ||
686 | void op_popw_T0(void) | |
687 | { | |
688 | T0 = lduw((void *)ESP); | |
689 | } | |
690 | ||
691 | void op_popl_ss32_T0(void) | |
692 | { | |
d8bc1fd0 | 693 | T0 = ldl(env->segs[R_SS].base + ESP); |
dab2ed99 FB |
694 | } |
695 | ||
696 | void op_popw_ss32_T0(void) | |
697 | { | |
d8bc1fd0 | 698 | T0 = lduw(env->segs[R_SS].base + ESP); |
dab2ed99 FB |
699 | } |
700 | ||
701 | void op_popl_ss16_T0(void) | |
702 | { | |
d8bc1fd0 | 703 | T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff)); |
dab2ed99 FB |
704 | } |
705 | ||
706 | void op_popw_ss16_T0(void) | |
707 | { | |
d8bc1fd0 | 708 | T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff)); |
dab2ed99 FB |
709 | } |
710 | ||
711 | void op_addl_ESP_4(void) | |
712 | { | |
7bfdb6d1 FB |
713 | ESP += 4; |
714 | } | |
715 | ||
dab2ed99 FB |
716 | void op_addl_ESP_2(void) |
717 | { | |
718 | ESP += 2; | |
719 | } | |
720 | ||
721 | void op_addw_ESP_4(void) | |
722 | { | |
723 | ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff); | |
724 | } | |
725 | ||
726 | void op_addw_ESP_2(void) | |
727 | { | |
728 | ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff); | |
729 | } | |
730 | ||
7bfdb6d1 FB |
731 | void op_addl_ESP_im(void) |
732 | { | |
733 | ESP += PARAM1; | |
734 | } | |
367e86e8 | 735 | |
dab2ed99 FB |
736 | void op_addw_ESP_im(void) |
737 | { | |
738 | ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff); | |
27362c82 FB |
739 | } |
740 | ||
a4a0ffdb | 741 | void OPPROTO op_rdtsc(void) |
27362c82 | 742 | { |
87f4827e | 743 | helper_rdtsc(); |
27362c82 FB |
744 | } |
745 | ||
a4a0ffdb FB |
746 | void OPPROTO op_cpuid(void) |
747 | { | |
748 | helper_cpuid(); | |
749 | } | |
750 | ||
3c1cf9fa FB |
751 | void OPPROTO op_rdmsr(void) |
752 | { | |
753 | helper_rdmsr(); | |
754 | } | |
755 | ||
756 | void OPPROTO op_wrmsr(void) | |
757 | { | |
758 | helper_wrmsr(); | |
759 | } | |
760 | ||
27362c82 FB |
761 | /* bcd */ |
762 | ||
763 | /* XXX: exception */ | |
764 | void OPPROTO op_aam(void) | |
765 | { | |
766 | int base = PARAM1; | |
767 | int al, ah; | |
768 | al = EAX & 0xff; | |
769 | ah = al / base; | |
770 | al = al % base; | |
771 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
772 | CC_DST = al; | |
773 | } | |
774 | ||
775 | void OPPROTO op_aad(void) | |
776 | { | |
777 | int base = PARAM1; | |
778 | int al, ah; | |
779 | al = EAX & 0xff; | |
780 | ah = (EAX >> 8) & 0xff; | |
781 | al = ((ah * base) + al) & 0xff; | |
782 | EAX = (EAX & ~0xffff) | al; | |
783 | CC_DST = al; | |
784 | } | |
785 | ||
786 | void OPPROTO op_aaa(void) | |
787 | { | |
788 | int icarry; | |
789 | int al, ah, af; | |
790 | int eflags; | |
791 | ||
792 | eflags = cc_table[CC_OP].compute_all(); | |
793 | af = eflags & CC_A; | |
794 | al = EAX & 0xff; | |
795 | ah = (EAX >> 8) & 0xff; | |
796 | ||
797 | icarry = (al > 0xf9); | |
798 | if (((al & 0x0f) > 9 ) || af) { | |
799 | al = (al + 6) & 0x0f; | |
800 | ah = (ah + 1 + icarry) & 0xff; | |
801 | eflags |= CC_C | CC_A; | |
802 | } else { | |
803 | eflags &= ~(CC_C | CC_A); | |
804 | al &= 0x0f; | |
805 | } | |
806 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
807 | CC_SRC = eflags; | |
808 | } | |
809 | ||
810 | void OPPROTO op_aas(void) | |
811 | { | |
812 | int icarry; | |
813 | int al, ah, af; | |
814 | int eflags; | |
815 | ||
816 | eflags = cc_table[CC_OP].compute_all(); | |
817 | af = eflags & CC_A; | |
818 | al = EAX & 0xff; | |
819 | ah = (EAX >> 8) & 0xff; | |
820 | ||
821 | icarry = (al < 6); | |
822 | if (((al & 0x0f) > 9 ) || af) { | |
823 | al = (al - 6) & 0x0f; | |
824 | ah = (ah - 1 - icarry) & 0xff; | |
825 | eflags |= CC_C | CC_A; | |
826 | } else { | |
827 | eflags &= ~(CC_C | CC_A); | |
828 | al &= 0x0f; | |
829 | } | |
830 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
831 | CC_SRC = eflags; | |
832 | } | |
833 | ||
834 | void OPPROTO op_daa(void) | |
835 | { | |
836 | int al, af, cf; | |
837 | int eflags; | |
838 | ||
839 | eflags = cc_table[CC_OP].compute_all(); | |
840 | cf = eflags & CC_C; | |
841 | af = eflags & CC_A; | |
842 | al = EAX & 0xff; | |
843 | ||
844 | eflags = 0; | |
845 | if (((al & 0x0f) > 9 ) || af) { | |
846 | al = (al + 6) & 0xff; | |
847 | eflags |= CC_A; | |
848 | } | |
849 | if ((al > 0x9f) || cf) { | |
850 | al = (al + 0x60) & 0xff; | |
851 | eflags |= CC_C; | |
852 | } | |
853 | EAX = (EAX & ~0xff) | al; | |
854 | /* well, speed is not an issue here, so we compute the flags by hand */ | |
855 | eflags |= (al == 0) << 6; /* zf */ | |
856 | eflags |= parity_table[al]; /* pf */ | |
857 | eflags |= (al & 0x80); /* sf */ | |
858 | CC_SRC = eflags; | |
859 | } | |
860 | ||
861 | void OPPROTO op_das(void) | |
862 | { | |
863 | int al, al1, af, cf; | |
864 | int eflags; | |
865 | ||
866 | eflags = cc_table[CC_OP].compute_all(); | |
867 | cf = eflags & CC_C; | |
868 | af = eflags & CC_A; | |
869 | al = EAX & 0xff; | |
870 | ||
871 | eflags = 0; | |
872 | al1 = al; | |
873 | if (((al & 0x0f) > 9 ) || af) { | |
874 | eflags |= CC_A; | |
875 | if (al < 6 || cf) | |
876 | eflags |= CC_C; | |
877 | al = (al - 6) & 0xff; | |
878 | } | |
879 | if ((al1 > 0x99) || cf) { | |
880 | al = (al - 0x60) & 0xff; | |
881 | eflags |= CC_C; | |
882 | } | |
883 | EAX = (EAX & ~0xff) | al; | |
884 | /* well, speed is not an issue here, so we compute the flags by hand */ | |
885 | eflags |= (al == 0) << 6; /* zf */ | |
886 | eflags |= parity_table[al]; /* pf */ | |
887 | eflags |= (al & 0x80); /* sf */ | |
888 | CC_SRC = eflags; | |
889 | } | |
890 | ||
6dbad63e FB |
891 | /* segment handling */ |
892 | ||
2e255c6b | 893 | /* never use it with R_CS */ |
6dbad63e FB |
894 | void OPPROTO op_movl_seg_T0(void) |
895 | { | |
f4beb510 FB |
896 | load_seg(PARAM1, T0 & 0xffff, PARAM2); |
897 | } | |
898 | ||
899 | /* faster VM86 version */ | |
900 | void OPPROTO op_movl_seg_T0_vm(void) | |
901 | { | |
902 | int selector; | |
d8bc1fd0 | 903 | SegmentCache *sc; |
f4beb510 FB |
904 | |
905 | selector = T0 & 0xffff; | |
906 | /* env->segs[] access */ | |
d8bc1fd0 FB |
907 | sc = (SegmentCache *)((char *)env + PARAM1); |
908 | sc->selector = selector; | |
909 | sc->base = (void *)(selector << 4); | |
6dbad63e FB |
910 | } |
911 | ||
912 | void OPPROTO op_movl_T0_seg(void) | |
913 | { | |
d8bc1fd0 | 914 | T0 = env->segs[PARAM1].selector; |
6dbad63e FB |
915 | } |
916 | ||
a4a0ffdb FB |
917 | void OPPROTO op_movl_A0_seg(void) |
918 | { | |
919 | A0 = *(unsigned long *)((char *)env + PARAM1); | |
920 | } | |
921 | ||
6dbad63e FB |
922 | void OPPROTO op_addl_A0_seg(void) |
923 | { | |
924 | A0 += *(unsigned long *)((char *)env + PARAM1); | |
925 | } | |
926 | ||
2792c4f2 FB |
927 | void OPPROTO op_lsl(void) |
928 | { | |
929 | helper_lsl(); | |
930 | } | |
931 | ||
2792c4f2 FB |
932 | void OPPROTO op_lar(void) |
933 | { | |
934 | helper_lar(); | |
935 | } | |
936 | ||
d8bc1fd0 | 937 | /* T0: segment, T1:eip */ |
2c1794c4 | 938 | void OPPROTO op_ljmp_protected_T0_T1(void) |
d8bc1fd0 | 939 | { |
2c1794c4 FB |
940 | helper_ljmp_protected_T0_T1(); |
941 | } | |
942 | ||
943 | void OPPROTO op_lcall_real_T0_T1(void) | |
944 | { | |
945 | helper_lcall_real_T0_T1(PARAM1, PARAM2); | |
946 | } | |
947 | ||
948 | void OPPROTO op_lcall_protected_T0_T1(void) | |
949 | { | |
950 | helper_lcall_protected_T0_T1(PARAM1, PARAM2); | |
d8bc1fd0 FB |
951 | } |
952 | ||
8f186479 FB |
953 | void OPPROTO op_iret_real(void) |
954 | { | |
955 | helper_iret_real(PARAM1); | |
956 | } | |
957 | ||
90a9fdae FB |
958 | void OPPROTO op_iret_protected(void) |
959 | { | |
960 | helper_iret_protected(PARAM1); | |
961 | } | |
962 | ||
2c1794c4 FB |
963 | void OPPROTO op_lret_protected(void) |
964 | { | |
965 | helper_lret_protected(PARAM1, PARAM2); | |
966 | } | |
967 | ||
d8bc1fd0 FB |
968 | void OPPROTO op_lldt_T0(void) |
969 | { | |
970 | helper_lldt_T0(); | |
971 | } | |
972 | ||
973 | void OPPROTO op_ltr_T0(void) | |
974 | { | |
975 | helper_ltr_T0(); | |
976 | } | |
977 | ||
978 | /* CR registers access */ | |
979 | void OPPROTO op_movl_crN_T0(void) | |
980 | { | |
981 | helper_movl_crN_T0(PARAM1); | |
982 | } | |
983 | ||
984 | /* DR registers access */ | |
985 | void OPPROTO op_movl_drN_T0(void) | |
986 | { | |
987 | helper_movl_drN_T0(PARAM1); | |
988 | } | |
989 | ||
990 | void OPPROTO op_lmsw_T0(void) | |
991 | { | |
992 | /* only 4 lower bits of CR0 are modified */ | |
993 | T0 = (env->cr[0] & ~0xf) | (T0 & 0xf); | |
994 | helper_movl_crN_T0(0); | |
995 | } | |
996 | ||
90a9fdae FB |
997 | void OPPROTO op_invlpg_A0(void) |
998 | { | |
999 | helper_invlpg(A0); | |
1000 | } | |
1001 | ||
d8bc1fd0 FB |
1002 | void OPPROTO op_movl_T0_env(void) |
1003 | { | |
1004 | T0 = *(uint32_t *)((char *)env + PARAM1); | |
1005 | } | |
1006 | ||
1007 | void OPPROTO op_movl_env_T0(void) | |
1008 | { | |
1009 | *(uint32_t *)((char *)env + PARAM1) = T0; | |
1010 | } | |
1011 | ||
1012 | void OPPROTO op_movl_env_T1(void) | |
1013 | { | |
1014 | *(uint32_t *)((char *)env + PARAM1) = T1; | |
1015 | } | |
1016 | ||
1017 | void OPPROTO op_clts(void) | |
1018 | { | |
1019 | env->cr[0] &= ~CR0_TS_MASK; | |
1020 | } | |
1021 | ||
367e86e8 FB |
1022 | /* flags handling */ |
1023 | ||
d4e8164f FB |
1024 | /* slow jumps cases : in order to avoid calling a function with a |
1025 | pointer (which can generate a stack frame on PowerPC), we use | |
1026 | op_setcc to set T0 and then call op_jcc. */ | |
1027 | void OPPROTO op_jcc(void) | |
367e86e8 | 1028 | { |
d4e8164f | 1029 | if (T0) |
25731098 | 1030 | JUMP_TB(op_jcc, PARAM1, 0, PARAM2); |
367e86e8 | 1031 | else |
25731098 | 1032 | JUMP_TB(op_jcc, PARAM1, 1, PARAM3); |
0ecfa993 | 1033 | FORCE_RET(); |
367e86e8 FB |
1034 | } |
1035 | ||
f513a41a FB |
1036 | void OPPROTO op_jcc_im(void) |
1037 | { | |
1038 | if (T0) | |
1039 | EIP = PARAM1; | |
1040 | else | |
1041 | EIP = PARAM2; | |
1042 | FORCE_RET(); | |
1043 | } | |
1044 | ||
367e86e8 FB |
1045 | /* slow set cases (compute x86 flags) */ |
1046 | void OPPROTO op_seto_T0_cc(void) | |
1047 | { | |
1048 | int eflags; | |
1049 | eflags = cc_table[CC_OP].compute_all(); | |
1050 | T0 = (eflags >> 11) & 1; | |
1051 | } | |
1052 | ||
1053 | void OPPROTO op_setb_T0_cc(void) | |
1054 | { | |
1055 | T0 = cc_table[CC_OP].compute_c(); | |
1056 | } | |
1057 | ||
1058 | void OPPROTO op_setz_T0_cc(void) | |
1059 | { | |
1060 | int eflags; | |
1061 | eflags = cc_table[CC_OP].compute_all(); | |
1062 | T0 = (eflags >> 6) & 1; | |
1063 | } | |
1064 | ||
1065 | void OPPROTO op_setbe_T0_cc(void) | |
1066 | { | |
1067 | int eflags; | |
1068 | eflags = cc_table[CC_OP].compute_all(); | |
1069 | T0 = (eflags & (CC_Z | CC_C)) != 0; | |
1070 | } | |
1071 | ||
1072 | void OPPROTO op_sets_T0_cc(void) | |
1073 | { | |
1074 | int eflags; | |
1075 | eflags = cc_table[CC_OP].compute_all(); | |
1076 | T0 = (eflags >> 7) & 1; | |
1077 | } | |
1078 | ||
1079 | void OPPROTO op_setp_T0_cc(void) | |
1080 | { | |
1081 | int eflags; | |
1082 | eflags = cc_table[CC_OP].compute_all(); | |
1083 | T0 = (eflags >> 2) & 1; | |
1084 | } | |
1085 | ||
1086 | void OPPROTO op_setl_T0_cc(void) | |
1087 | { | |
1088 | int eflags; | |
1089 | eflags = cc_table[CC_OP].compute_all(); | |
1090 | T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1; | |
1091 | } | |
1092 | ||
1093 | void OPPROTO op_setle_T0_cc(void) | |
1094 | { | |
1095 | int eflags; | |
1096 | eflags = cc_table[CC_OP].compute_all(); | |
1097 | T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0; | |
1098 | } | |
1099 | ||
1100 | void OPPROTO op_xor_T0_1(void) | |
1101 | { | |
1102 | T0 ^= 1; | |
1103 | } | |
1104 | ||
1105 | void OPPROTO op_set_cc_op(void) | |
1106 | { | |
1107 | CC_OP = PARAM1; | |
1108 | } | |
1109 | ||
90a9fdae | 1110 | #define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff) |
a4a0ffdb | 1111 | |
367e86e8 FB |
1112 | void OPPROTO op_movl_eflags_T0(void) |
1113 | { | |
a4a0ffdb FB |
1114 | int eflags; |
1115 | eflags = T0; | |
1116 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1117 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1118 | /* we also update some system flags as in user mode */ | |
90a9fdae FB |
1119 | env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | |
1120 | (eflags & FL_UPDATE_MASK32); | |
f631ef9b FB |
1121 | } |
1122 | ||
1123 | void OPPROTO op_movw_eflags_T0(void) | |
1124 | { | |
1125 | int eflags; | |
1126 | eflags = T0; | |
1127 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1128 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1129 | /* we also update some system flags as in user mode */ | |
90a9fdae FB |
1130 | env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | |
1131 | (eflags & FL_UPDATE_MASK16); | |
1132 | } | |
1133 | ||
1134 | void OPPROTO op_movl_eflags_T0_cpl0(void) | |
1135 | { | |
1136 | load_eflags(T0, FL_UPDATE_CPL0_MASK); | |
1137 | } | |
1138 | ||
1139 | void OPPROTO op_movw_eflags_T0_cpl0(void) | |
1140 | { | |
1141 | load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff); | |
f631ef9b FB |
1142 | } |
1143 | ||
3acace13 FB |
1144 | #if 0 |
1145 | /* vm86plus version */ | |
f631ef9b FB |
1146 | void OPPROTO op_movw_eflags_T0_vm(void) |
1147 | { | |
1148 | int eflags; | |
1149 | eflags = T0; | |
1150 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1151 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1152 | /* we also update some system flags as in user mode */ | |
1153 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) | | |
1154 | (eflags & FL_UPDATE_MASK16); | |
1155 | if (eflags & IF_MASK) { | |
1156 | env->eflags |= VIF_MASK; | |
1157 | if (env->eflags & VIP_MASK) { | |
1158 | EIP = PARAM1; | |
1159 | raise_exception(EXCP0D_GPF); | |
1160 | } | |
1161 | } | |
1162 | FORCE_RET(); | |
1163 | } | |
1164 | ||
1165 | void OPPROTO op_movl_eflags_T0_vm(void) | |
1166 | { | |
1167 | int eflags; | |
1168 | eflags = T0; | |
1169 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1170 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1171 | /* we also update some system flags as in user mode */ | |
1172 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) | | |
1173 | (eflags & FL_UPDATE_MASK32); | |
1174 | if (eflags & IF_MASK) { | |
1175 | env->eflags |= VIF_MASK; | |
1176 | if (env->eflags & VIP_MASK) { | |
1177 | EIP = PARAM1; | |
1178 | raise_exception(EXCP0D_GPF); | |
1179 | } | |
1180 | } | |
1181 | FORCE_RET(); | |
367e86e8 | 1182 | } |
3acace13 | 1183 | #endif |
367e86e8 FB |
1184 | |
1185 | /* XXX: compute only O flag */ | |
1186 | void OPPROTO op_movb_eflags_T0(void) | |
1187 | { | |
1188 | int of; | |
1189 | of = cc_table[CC_OP].compute_all() & CC_O; | |
a4a0ffdb | 1190 | CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of; |
367e86e8 FB |
1191 | } |
1192 | ||
1193 | void OPPROTO op_movl_T0_eflags(void) | |
1194 | { | |
a4a0ffdb FB |
1195 | int eflags; |
1196 | eflags = cc_table[CC_OP].compute_all(); | |
1197 | eflags |= (DF & DF_MASK); | |
1198 | eflags |= env->eflags & ~(VM_MASK | RF_MASK); | |
1199 | T0 = eflags; | |
367e86e8 FB |
1200 | } |
1201 | ||
3acace13 FB |
1202 | /* vm86plus version */ |
1203 | #if 0 | |
f631ef9b FB |
1204 | void OPPROTO op_movl_T0_eflags_vm(void) |
1205 | { | |
1206 | int eflags; | |
1207 | eflags = cc_table[CC_OP].compute_all(); | |
1208 | eflags |= (DF & DF_MASK); | |
1209 | eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK); | |
1210 | if (env->eflags & VIF_MASK) | |
1211 | eflags |= IF_MASK; | |
1212 | T0 = eflags; | |
1213 | } | |
3acace13 | 1214 | #endif |
f631ef9b | 1215 | |
367e86e8 FB |
1216 | void OPPROTO op_cld(void) |
1217 | { | |
1218 | DF = 1; | |
1219 | } | |
1220 | ||
1221 | void OPPROTO op_std(void) | |
1222 | { | |
1223 | DF = -1; | |
1224 | } | |
1225 | ||
1226 | void OPPROTO op_clc(void) | |
1227 | { | |
1228 | int eflags; | |
1229 | eflags = cc_table[CC_OP].compute_all(); | |
1230 | eflags &= ~CC_C; | |
1231 | CC_SRC = eflags; | |
1232 | } | |
1233 | ||
1234 | void OPPROTO op_stc(void) | |
1235 | { | |
1236 | int eflags; | |
1237 | eflags = cc_table[CC_OP].compute_all(); | |
1238 | eflags |= CC_C; | |
1239 | CC_SRC = eflags; | |
1240 | } | |
1241 | ||
1242 | void OPPROTO op_cmc(void) | |
1243 | { | |
1244 | int eflags; | |
1245 | eflags = cc_table[CC_OP].compute_all(); | |
1246 | eflags ^= CC_C; | |
1247 | CC_SRC = eflags; | |
1248 | } | |
1249 | ||
27362c82 FB |
1250 | void OPPROTO op_salc(void) |
1251 | { | |
1252 | int cf; | |
1253 | cf = cc_table[CC_OP].compute_c(); | |
1254 | EAX = (EAX & ~0xff) | ((-cf) & 0xff); | |
1255 | } | |
1256 | ||
367e86e8 FB |
1257 | static int compute_all_eflags(void) |
1258 | { | |
1259 | return CC_SRC; | |
1260 | } | |
1261 | ||
1262 | static int compute_c_eflags(void) | |
1263 | { | |
1264 | return CC_SRC & CC_C; | |
1265 | } | |
1266 | ||
1267 | static int compute_c_mul(void) | |
1268 | { | |
1269 | int cf; | |
1270 | cf = (CC_SRC != 0); | |
1271 | return cf; | |
1272 | } | |
1273 | ||
1274 | static int compute_all_mul(void) | |
1275 | { | |
1276 | int cf, pf, af, zf, sf, of; | |
1277 | cf = (CC_SRC != 0); | |
1278 | pf = 0; /* undefined */ | |
1279 | af = 0; /* undefined */ | |
1280 | zf = 0; /* undefined */ | |
1281 | sf = 0; /* undefined */ | |
1282 | of = cf << 11; | |
1283 | return cf | pf | af | zf | sf | of; | |
1284 | } | |
1285 | ||
1286 | CCTable cc_table[CC_OP_NB] = { | |
1287 | [CC_OP_DYNAMIC] = { /* should never happen */ }, | |
1288 | ||
1289 | [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags }, | |
1290 | ||
1291 | [CC_OP_MUL] = { compute_all_mul, compute_c_mul }, | |
1292 | ||
1293 | [CC_OP_ADDB] = { compute_all_addb, compute_c_addb }, | |
1294 | [CC_OP_ADDW] = { compute_all_addw, compute_c_addw }, | |
1295 | [CC_OP_ADDL] = { compute_all_addl, compute_c_addl }, | |
1296 | ||
4b74fe1f FB |
1297 | [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb }, |
1298 | [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw }, | |
1299 | [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl }, | |
1300 | ||
367e86e8 FB |
1301 | [CC_OP_SUBB] = { compute_all_subb, compute_c_subb }, |
1302 | [CC_OP_SUBW] = { compute_all_subw, compute_c_subw }, | |
1303 | [CC_OP_SUBL] = { compute_all_subl, compute_c_subl }, | |
1304 | ||
4b74fe1f FB |
1305 | [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb }, |
1306 | [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw }, | |
1307 | [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl }, | |
1308 | ||
367e86e8 FB |
1309 | [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb }, |
1310 | [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw }, | |
1311 | [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl }, | |
1312 | ||
4b74fe1f FB |
1313 | [CC_OP_INCB] = { compute_all_incb, compute_c_incl }, |
1314 | [CC_OP_INCW] = { compute_all_incw, compute_c_incl }, | |
367e86e8 FB |
1315 | [CC_OP_INCL] = { compute_all_incl, compute_c_incl }, |
1316 | ||
4b74fe1f FB |
1317 | [CC_OP_DECB] = { compute_all_decb, compute_c_incl }, |
1318 | [CC_OP_DECW] = { compute_all_decw, compute_c_incl }, | |
367e86e8 FB |
1319 | [CC_OP_DECL] = { compute_all_decl, compute_c_incl }, |
1320 | ||
2792c4f2 FB |
1321 | [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb }, |
1322 | [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw }, | |
367e86e8 | 1323 | [CC_OP_SHLL] = { compute_all_shll, compute_c_shll }, |
4b74fe1f | 1324 | |
2792c4f2 FB |
1325 | [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl }, |
1326 | [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl }, | |
1327 | [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl }, | |
367e86e8 | 1328 | }; |
927f621e | 1329 | |
f631ef9b FB |
1330 | /* floating point support. Some of the code for complicated x87 |
1331 | functions comes from the LGPL'ed x86 emulator found in the Willows | |
1332 | TWIN windows emulator. */ | |
927f621e | 1333 | |
51fe6890 FB |
1334 | #if defined(__powerpc__) |
1335 | extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble); | |
1336 | ||
1337 | /* correct (but slow) PowerPC rint() (glibc version is incorrect) */ | |
1338 | double qemu_rint(double x) | |
1339 | { | |
1340 | double y = 4503599627370496.0; | |
1341 | if (fabs(x) >= y) | |
1342 | return x; | |
1343 | if (x < 0) | |
1344 | y = -y; | |
1345 | y = (x + y) - y; | |
1346 | if (y == 0.0) | |
1347 | y = copysign(y, x); | |
1348 | return y; | |
1349 | } | |
1350 | ||
1351 | #define rint qemu_rint | |
1352 | #endif | |
1353 | ||
927f621e FB |
1354 | /* fp load FT0 */ |
1355 | ||
1356 | void OPPROTO op_flds_FT0_A0(void) | |
1357 | { | |
d014c98c FB |
1358 | #ifdef USE_FP_CONVERT |
1359 | FP_CONVERT.i32 = ldl((void *)A0); | |
1360 | FT0 = FP_CONVERT.f; | |
1361 | #else | |
927f621e | 1362 | FT0 = ldfl((void *)A0); |
d014c98c | 1363 | #endif |
927f621e FB |
1364 | } |
1365 | ||
1366 | void OPPROTO op_fldl_FT0_A0(void) | |
1367 | { | |
d014c98c FB |
1368 | #ifdef USE_FP_CONVERT |
1369 | FP_CONVERT.i64 = ldq((void *)A0); | |
1370 | FT0 = FP_CONVERT.d; | |
1371 | #else | |
927f621e | 1372 | FT0 = ldfq((void *)A0); |
d014c98c | 1373 | #endif |
927f621e FB |
1374 | } |
1375 | ||
04369ff2 FB |
1376 | /* helpers are needed to avoid static constant reference. XXX: find a better way */ |
1377 | #ifdef USE_INT_TO_FLOAT_HELPERS | |
1378 | ||
1379 | void helper_fild_FT0_A0(void) | |
1380 | { | |
1381 | FT0 = (CPU86_LDouble)ldsw((void *)A0); | |
1382 | } | |
1383 | ||
1384 | void helper_fildl_FT0_A0(void) | |
1385 | { | |
1386 | FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); | |
1387 | } | |
1388 | ||
1389 | void helper_fildll_FT0_A0(void) | |
1390 | { | |
1391 | FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); | |
1392 | } | |
1393 | ||
1394 | void OPPROTO op_fild_FT0_A0(void) | |
1395 | { | |
1396 | helper_fild_FT0_A0(); | |
1397 | } | |
1398 | ||
1399 | void OPPROTO op_fildl_FT0_A0(void) | |
1400 | { | |
1401 | helper_fildl_FT0_A0(); | |
1402 | } | |
1403 | ||
1404 | void OPPROTO op_fildll_FT0_A0(void) | |
1405 | { | |
1406 | helper_fildll_FT0_A0(); | |
1407 | } | |
1408 | ||
1409 | #else | |
1410 | ||
927f621e FB |
1411 | void OPPROTO op_fild_FT0_A0(void) |
1412 | { | |
d014c98c FB |
1413 | #ifdef USE_FP_CONVERT |
1414 | FP_CONVERT.i32 = ldsw((void *)A0); | |
1415 | FT0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1416 | #else | |
927f621e | 1417 | FT0 = (CPU86_LDouble)ldsw((void *)A0); |
d014c98c | 1418 | #endif |
927f621e FB |
1419 | } |
1420 | ||
1421 | void OPPROTO op_fildl_FT0_A0(void) | |
1422 | { | |
d014c98c FB |
1423 | #ifdef USE_FP_CONVERT |
1424 | FP_CONVERT.i32 = (int32_t) ldl((void *)A0); | |
1425 | FT0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1426 | #else | |
927f621e | 1427 | FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); |
d014c98c | 1428 | #endif |
927f621e FB |
1429 | } |
1430 | ||
1431 | void OPPROTO op_fildll_FT0_A0(void) | |
1432 | { | |
d014c98c FB |
1433 | #ifdef USE_FP_CONVERT |
1434 | FP_CONVERT.i64 = (int64_t) ldq((void *)A0); | |
1435 | FT0 = (CPU86_LDouble)FP_CONVERT.i64; | |
1436 | #else | |
927f621e | 1437 | FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); |
d014c98c | 1438 | #endif |
927f621e | 1439 | } |
04369ff2 | 1440 | #endif |
927f621e FB |
1441 | |
1442 | /* fp load ST0 */ | |
1443 | ||
1444 | void OPPROTO op_flds_ST0_A0(void) | |
1445 | { | |
c39d5b78 FB |
1446 | int new_fpstt; |
1447 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1448 | #ifdef USE_FP_CONVERT |
1449 | FP_CONVERT.i32 = ldl((void *)A0); | |
c39d5b78 | 1450 | env->fpregs[new_fpstt] = FP_CONVERT.f; |
d014c98c | 1451 | #else |
c39d5b78 | 1452 | env->fpregs[new_fpstt] = ldfl((void *)A0); |
d014c98c | 1453 | #endif |
c39d5b78 FB |
1454 | env->fpstt = new_fpstt; |
1455 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1456 | } |
1457 | ||
1458 | void OPPROTO op_fldl_ST0_A0(void) | |
1459 | { | |
c39d5b78 FB |
1460 | int new_fpstt; |
1461 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1462 | #ifdef USE_FP_CONVERT |
1463 | FP_CONVERT.i64 = ldq((void *)A0); | |
c39d5b78 | 1464 | env->fpregs[new_fpstt] = FP_CONVERT.d; |
d014c98c | 1465 | #else |
c39d5b78 | 1466 | env->fpregs[new_fpstt] = ldfq((void *)A0); |
d014c98c | 1467 | #endif |
c39d5b78 FB |
1468 | env->fpstt = new_fpstt; |
1469 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1470 | } |
1471 | ||
77f8dd5a FB |
1472 | #ifdef USE_X86LDOUBLE |
1473 | void OPPROTO op_fldt_ST0_A0(void) | |
1474 | { | |
c39d5b78 FB |
1475 | int new_fpstt; |
1476 | new_fpstt = (env->fpstt - 1) & 7; | |
1477 | env->fpregs[new_fpstt] = *(long double *)A0; | |
1478 | env->fpstt = new_fpstt; | |
1479 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
77f8dd5a FB |
1480 | } |
1481 | #else | |
77f8dd5a FB |
1482 | void OPPROTO op_fldt_ST0_A0(void) |
1483 | { | |
1484 | helper_fldt_ST0_A0(); | |
1485 | } | |
1486 | #endif | |
1487 | ||
04369ff2 FB |
1488 | /* helpers are needed to avoid static constant reference. XXX: find a better way */ |
1489 | #ifdef USE_INT_TO_FLOAT_HELPERS | |
1490 | ||
1491 | void helper_fild_ST0_A0(void) | |
1492 | { | |
c39d5b78 FB |
1493 | int new_fpstt; |
1494 | new_fpstt = (env->fpstt - 1) & 7; | |
1495 | env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0); | |
1496 | env->fpstt = new_fpstt; | |
1497 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
04369ff2 FB |
1498 | } |
1499 | ||
1500 | void helper_fildl_ST0_A0(void) | |
1501 | { | |
c39d5b78 FB |
1502 | int new_fpstt; |
1503 | new_fpstt = (env->fpstt - 1) & 7; | |
1504 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0)); | |
1505 | env->fpstt = new_fpstt; | |
1506 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
04369ff2 FB |
1507 | } |
1508 | ||
1509 | void helper_fildll_ST0_A0(void) | |
1510 | { | |
c39d5b78 FB |
1511 | int new_fpstt; |
1512 | new_fpstt = (env->fpstt - 1) & 7; | |
1513 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0)); | |
1514 | env->fpstt = new_fpstt; | |
1515 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
04369ff2 FB |
1516 | } |
1517 | ||
1518 | void OPPROTO op_fild_ST0_A0(void) | |
1519 | { | |
1520 | helper_fild_ST0_A0(); | |
1521 | } | |
1522 | ||
1523 | void OPPROTO op_fildl_ST0_A0(void) | |
1524 | { | |
1525 | helper_fildl_ST0_A0(); | |
1526 | } | |
1527 | ||
1528 | void OPPROTO op_fildll_ST0_A0(void) | |
1529 | { | |
1530 | helper_fildll_ST0_A0(); | |
1531 | } | |
1532 | ||
1533 | #else | |
1534 | ||
927f621e FB |
1535 | void OPPROTO op_fild_ST0_A0(void) |
1536 | { | |
c39d5b78 FB |
1537 | int new_fpstt; |
1538 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1539 | #ifdef USE_FP_CONVERT |
1540 | FP_CONVERT.i32 = ldsw((void *)A0); | |
c39d5b78 | 1541 | env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32; |
d014c98c | 1542 | #else |
c39d5b78 | 1543 | env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0); |
d014c98c | 1544 | #endif |
c39d5b78 FB |
1545 | env->fpstt = new_fpstt; |
1546 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1547 | } |
1548 | ||
1549 | void OPPROTO op_fildl_ST0_A0(void) | |
1550 | { | |
c39d5b78 FB |
1551 | int new_fpstt; |
1552 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1553 | #ifdef USE_FP_CONVERT |
1554 | FP_CONVERT.i32 = (int32_t) ldl((void *)A0); | |
c39d5b78 | 1555 | env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32; |
d014c98c | 1556 | #else |
c39d5b78 | 1557 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0)); |
d014c98c | 1558 | #endif |
c39d5b78 FB |
1559 | env->fpstt = new_fpstt; |
1560 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1561 | } |
1562 | ||
1563 | void OPPROTO op_fildll_ST0_A0(void) | |
1564 | { | |
c39d5b78 FB |
1565 | int new_fpstt; |
1566 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1567 | #ifdef USE_FP_CONVERT |
1568 | FP_CONVERT.i64 = (int64_t) ldq((void *)A0); | |
c39d5b78 | 1569 | env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i64; |
d014c98c | 1570 | #else |
c39d5b78 | 1571 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0)); |
d014c98c | 1572 | #endif |
c39d5b78 FB |
1573 | env->fpstt = new_fpstt; |
1574 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1575 | } |
1576 | ||
04369ff2 FB |
1577 | #endif |
1578 | ||
927f621e FB |
1579 | /* fp store */ |
1580 | ||
1581 | void OPPROTO op_fsts_ST0_A0(void) | |
1582 | { | |
d014c98c | 1583 | #ifdef USE_FP_CONVERT |
87f4827e | 1584 | FP_CONVERT.f = (float)ST0; |
d014c98c FB |
1585 | stfl((void *)A0, FP_CONVERT.f); |
1586 | #else | |
927f621e | 1587 | stfl((void *)A0, (float)ST0); |
d014c98c | 1588 | #endif |
927f621e FB |
1589 | } |
1590 | ||
1591 | void OPPROTO op_fstl_ST0_A0(void) | |
1592 | { | |
77f8dd5a | 1593 | stfq((void *)A0, (double)ST0); |
927f621e FB |
1594 | } |
1595 | ||
77f8dd5a FB |
1596 | #ifdef USE_X86LDOUBLE |
1597 | void OPPROTO op_fstt_ST0_A0(void) | |
1598 | { | |
1599 | *(long double *)A0 = ST0; | |
1600 | } | |
1601 | #else | |
77f8dd5a FB |
1602 | void OPPROTO op_fstt_ST0_A0(void) |
1603 | { | |
1604 | helper_fstt_ST0_A0(); | |
1605 | } | |
1606 | #endif | |
1607 | ||
927f621e FB |
1608 | void OPPROTO op_fist_ST0_A0(void) |
1609 | { | |
d014c98c FB |
1610 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1611 | register CPU86_LDouble d asm("o0"); | |
1612 | #else | |
1613 | CPU86_LDouble d; | |
1614 | #endif | |
927f621e | 1615 | int val; |
d014c98c FB |
1616 | |
1617 | d = ST0; | |
1618 | val = lrint(d); | |
1e5ffbed FB |
1619 | if (val != (int16_t)val) |
1620 | val = -32768; | |
927f621e FB |
1621 | stw((void *)A0, val); |
1622 | } | |
1623 | ||
1624 | void OPPROTO op_fistl_ST0_A0(void) | |
1625 | { | |
d014c98c FB |
1626 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1627 | register CPU86_LDouble d asm("o0"); | |
1628 | #else | |
1629 | CPU86_LDouble d; | |
1630 | #endif | |
927f621e | 1631 | int val; |
d014c98c FB |
1632 | |
1633 | d = ST0; | |
1634 | val = lrint(d); | |
927f621e FB |
1635 | stl((void *)A0, val); |
1636 | } | |
1637 | ||
1638 | void OPPROTO op_fistll_ST0_A0(void) | |
1639 | { | |
d014c98c FB |
1640 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1641 | register CPU86_LDouble d asm("o0"); | |
1642 | #else | |
1643 | CPU86_LDouble d; | |
1644 | #endif | |
927f621e | 1645 | int64_t val; |
d014c98c FB |
1646 | |
1647 | d = ST0; | |
1648 | val = llrint(d); | |
927f621e FB |
1649 | stq((void *)A0, val); |
1650 | } | |
1651 | ||
77f8dd5a FB |
1652 | void OPPROTO op_fbld_ST0_A0(void) |
1653 | { | |
1654 | helper_fbld_ST0_A0(); | |
1655 | } | |
1656 | ||
77f8dd5a FB |
1657 | void OPPROTO op_fbst_ST0_A0(void) |
1658 | { | |
1659 | helper_fbst_ST0_A0(); | |
1660 | } | |
1661 | ||
927f621e FB |
1662 | /* FPU move */ |
1663 | ||
927f621e FB |
1664 | void OPPROTO op_fpush(void) |
1665 | { | |
1666 | fpush(); | |
1667 | } | |
1668 | ||
1669 | void OPPROTO op_fpop(void) | |
1670 | { | |
1671 | fpop(); | |
1672 | } | |
1673 | ||
1674 | void OPPROTO op_fdecstp(void) | |
1675 | { | |
1676 | env->fpstt = (env->fpstt - 1) & 7; | |
1677 | env->fpus &= (~0x4700); | |
1678 | } | |
1679 | ||
1680 | void OPPROTO op_fincstp(void) | |
1681 | { | |
1682 | env->fpstt = (env->fpstt + 1) & 7; | |
1683 | env->fpus &= (~0x4700); | |
1684 | } | |
1685 | ||
1686 | void OPPROTO op_fmov_ST0_FT0(void) | |
1687 | { | |
1688 | ST0 = FT0; | |
1689 | } | |
1690 | ||
1691 | void OPPROTO op_fmov_FT0_STN(void) | |
1692 | { | |
1693 | FT0 = ST(PARAM1); | |
1694 | } | |
1695 | ||
1696 | void OPPROTO op_fmov_ST0_STN(void) | |
1697 | { | |
1698 | ST0 = ST(PARAM1); | |
1699 | } | |
1700 | ||
1701 | void OPPROTO op_fmov_STN_ST0(void) | |
1702 | { | |
1703 | ST(PARAM1) = ST0; | |
1704 | } | |
1705 | ||
1706 | void OPPROTO op_fxchg_ST0_STN(void) | |
1707 | { | |
1708 | CPU86_LDouble tmp; | |
1709 | tmp = ST(PARAM1); | |
1710 | ST(PARAM1) = ST0; | |
1711 | ST0 = tmp; | |
1712 | } | |
1713 | ||
1714 | /* FPU operations */ | |
1715 | ||
1716 | /* XXX: handle nans */ | |
1717 | void OPPROTO op_fcom_ST0_FT0(void) | |
1718 | { | |
1719 | env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ | |
1720 | if (ST0 < FT0) | |
1721 | env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ | |
1722 | else if (ST0 == FT0) | |
1723 | env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ | |
1724 | FORCE_RET(); | |
1725 | } | |
1726 | ||
77f8dd5a FB |
1727 | /* XXX: handle nans */ |
1728 | void OPPROTO op_fucom_ST0_FT0(void) | |
1729 | { | |
1730 | env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ | |
1731 | if (ST0 < FT0) | |
1732 | env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ | |
1733 | else if (ST0 == FT0) | |
1734 | env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ | |
1735 | FORCE_RET(); | |
1736 | } | |
1737 | ||
d0a1ffc9 FB |
1738 | /* XXX: handle nans */ |
1739 | void OPPROTO op_fcomi_ST0_FT0(void) | |
1740 | { | |
1741 | int eflags; | |
1742 | eflags = cc_table[CC_OP].compute_all(); | |
1743 | eflags &= ~(CC_Z | CC_P | CC_C); | |
1744 | if (ST0 < FT0) | |
1745 | eflags |= CC_C; | |
1746 | else if (ST0 == FT0) | |
1747 | eflags |= CC_Z; | |
1748 | CC_SRC = eflags; | |
1749 | FORCE_RET(); | |
1750 | } | |
1751 | ||
1752 | /* XXX: handle nans */ | |
1753 | void OPPROTO op_fucomi_ST0_FT0(void) | |
1754 | { | |
1755 | int eflags; | |
1756 | eflags = cc_table[CC_OP].compute_all(); | |
1757 | eflags &= ~(CC_Z | CC_P | CC_C); | |
1758 | if (ST0 < FT0) | |
1759 | eflags |= CC_C; | |
1760 | else if (ST0 == FT0) | |
1761 | eflags |= CC_Z; | |
1762 | CC_SRC = eflags; | |
1763 | FORCE_RET(); | |
1764 | } | |
1765 | ||
927f621e FB |
1766 | void OPPROTO op_fadd_ST0_FT0(void) |
1767 | { | |
1768 | ST0 += FT0; | |
1769 | } | |
1770 | ||
1771 | void OPPROTO op_fmul_ST0_FT0(void) | |
1772 | { | |
1773 | ST0 *= FT0; | |
1774 | } | |
1775 | ||
1776 | void OPPROTO op_fsub_ST0_FT0(void) | |
1777 | { | |
1778 | ST0 -= FT0; | |
1779 | } | |
1780 | ||
1781 | void OPPROTO op_fsubr_ST0_FT0(void) | |
1782 | { | |
1783 | ST0 = FT0 - ST0; | |
1784 | } | |
1785 | ||
1786 | void OPPROTO op_fdiv_ST0_FT0(void) | |
1787 | { | |
1788 | ST0 /= FT0; | |
1789 | } | |
1790 | ||
1791 | void OPPROTO op_fdivr_ST0_FT0(void) | |
1792 | { | |
1793 | ST0 = FT0 / ST0; | |
1794 | } | |
1795 | ||
1796 | /* fp operations between STN and ST0 */ | |
1797 | ||
1798 | void OPPROTO op_fadd_STN_ST0(void) | |
1799 | { | |
1800 | ST(PARAM1) += ST0; | |
1801 | } | |
1802 | ||
1803 | void OPPROTO op_fmul_STN_ST0(void) | |
1804 | { | |
1805 | ST(PARAM1) *= ST0; | |
1806 | } | |
1807 | ||
1808 | void OPPROTO op_fsub_STN_ST0(void) | |
1809 | { | |
1810 | ST(PARAM1) -= ST0; | |
1811 | } | |
1812 | ||
1813 | void OPPROTO op_fsubr_STN_ST0(void) | |
1814 | { | |
1815 | CPU86_LDouble *p; | |
1816 | p = &ST(PARAM1); | |
1817 | *p = ST0 - *p; | |
1818 | } | |
1819 | ||
1820 | void OPPROTO op_fdiv_STN_ST0(void) | |
1821 | { | |
1822 | ST(PARAM1) /= ST0; | |
1823 | } | |
1824 | ||
1825 | void OPPROTO op_fdivr_STN_ST0(void) | |
1826 | { | |
1827 | CPU86_LDouble *p; | |
1828 | p = &ST(PARAM1); | |
1829 | *p = ST0 / *p; | |
1830 | } | |
1831 | ||
1832 | /* misc FPU operations */ | |
1833 | void OPPROTO op_fchs_ST0(void) | |
1834 | { | |
1835 | ST0 = -ST0; | |
1836 | } | |
1837 | ||
1838 | void OPPROTO op_fabs_ST0(void) | |
1839 | { | |
1840 | ST0 = fabs(ST0); | |
1841 | } | |
1842 | ||
77f8dd5a FB |
1843 | void OPPROTO op_fxam_ST0(void) |
1844 | { | |
1845 | helper_fxam_ST0(); | |
927f621e FB |
1846 | } |
1847 | ||
1848 | void OPPROTO op_fld1_ST0(void) | |
1849 | { | |
87f4827e | 1850 | ST0 = f15rk[1]; |
927f621e FB |
1851 | } |
1852 | ||
77f8dd5a | 1853 | void OPPROTO op_fldl2t_ST0(void) |
927f621e | 1854 | { |
87f4827e | 1855 | ST0 = f15rk[6]; |
927f621e FB |
1856 | } |
1857 | ||
77f8dd5a | 1858 | void OPPROTO op_fldl2e_ST0(void) |
927f621e | 1859 | { |
87f4827e | 1860 | ST0 = f15rk[5]; |
927f621e FB |
1861 | } |
1862 | ||
1863 | void OPPROTO op_fldpi_ST0(void) | |
1864 | { | |
87f4827e | 1865 | ST0 = f15rk[2]; |
927f621e FB |
1866 | } |
1867 | ||
1868 | void OPPROTO op_fldlg2_ST0(void) | |
1869 | { | |
87f4827e | 1870 | ST0 = f15rk[3]; |
927f621e FB |
1871 | } |
1872 | ||
1873 | void OPPROTO op_fldln2_ST0(void) | |
1874 | { | |
87f4827e | 1875 | ST0 = f15rk[4]; |
927f621e FB |
1876 | } |
1877 | ||
1878 | void OPPROTO op_fldz_ST0(void) | |
1879 | { | |
87f4827e | 1880 | ST0 = f15rk[0]; |
927f621e FB |
1881 | } |
1882 | ||
1883 | void OPPROTO op_fldz_FT0(void) | |
1884 | { | |
87f4827e | 1885 | ST0 = f15rk[0]; |
927f621e FB |
1886 | } |
1887 | ||
927f621e FB |
1888 | /* associated heplers to reduce generated code length and to simplify |
1889 | relocation (FP constants are usually stored in .rodata section) */ | |
1890 | ||
1891 | void OPPROTO op_f2xm1(void) | |
1892 | { | |
1893 | helper_f2xm1(); | |
1894 | } | |
1895 | ||
1896 | void OPPROTO op_fyl2x(void) | |
1897 | { | |
1898 | helper_fyl2x(); | |
1899 | } | |
1900 | ||
1901 | void OPPROTO op_fptan(void) | |
1902 | { | |
1903 | helper_fptan(); | |
1904 | } | |
1905 | ||
1906 | void OPPROTO op_fpatan(void) | |
1907 | { | |
1908 | helper_fpatan(); | |
1909 | } | |
1910 | ||
1911 | void OPPROTO op_fxtract(void) | |
1912 | { | |
1913 | helper_fxtract(); | |
1914 | } | |
1915 | ||
1916 | void OPPROTO op_fprem1(void) | |
1917 | { | |
1918 | helper_fprem1(); | |
1919 | } | |
1920 | ||
1921 | ||
1922 | void OPPROTO op_fprem(void) | |
1923 | { | |
1924 | helper_fprem(); | |
1925 | } | |
1926 | ||
1927 | void OPPROTO op_fyl2xp1(void) | |
1928 | { | |
1929 | helper_fyl2xp1(); | |
1930 | } | |
1931 | ||
1932 | void OPPROTO op_fsqrt(void) | |
1933 | { | |
1934 | helper_fsqrt(); | |
1935 | } | |
1936 | ||
1937 | void OPPROTO op_fsincos(void) | |
1938 | { | |
1939 | helper_fsincos(); | |
1940 | } | |
1941 | ||
1942 | void OPPROTO op_frndint(void) | |
1943 | { | |
1944 | helper_frndint(); | |
1945 | } | |
1946 | ||
1947 | void OPPROTO op_fscale(void) | |
1948 | { | |
1949 | helper_fscale(); | |
1950 | } | |
1951 | ||
1952 | void OPPROTO op_fsin(void) | |
1953 | { | |
1954 | helper_fsin(); | |
1955 | } | |
1956 | ||
1957 | void OPPROTO op_fcos(void) | |
1958 | { | |
1959 | helper_fcos(); | |
1960 | } | |
1961 | ||
4b74fe1f FB |
1962 | void OPPROTO op_fnstsw_A0(void) |
1963 | { | |
1964 | int fpus; | |
1965 | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; | |
1966 | stw((void *)A0, fpus); | |
1967 | } | |
1968 | ||
77f8dd5a FB |
1969 | void OPPROTO op_fnstsw_EAX(void) |
1970 | { | |
1971 | int fpus; | |
1972 | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; | |
1973 | EAX = (EAX & 0xffff0000) | fpus; | |
1974 | } | |
1975 | ||
4b74fe1f FB |
1976 | void OPPROTO op_fnstcw_A0(void) |
1977 | { | |
1978 | stw((void *)A0, env->fpuc); | |
1979 | } | |
1980 | ||
1981 | void OPPROTO op_fldcw_A0(void) | |
1982 | { | |
1983 | int rnd_type; | |
1984 | env->fpuc = lduw((void *)A0); | |
1985 | /* set rounding mode */ | |
1986 | switch(env->fpuc & RC_MASK) { | |
1987 | default: | |
1988 | case RC_NEAR: | |
1989 | rnd_type = FE_TONEAREST; | |
1990 | break; | |
1991 | case RC_DOWN: | |
1992 | rnd_type = FE_DOWNWARD; | |
1993 | break; | |
1994 | case RC_UP: | |
1995 | rnd_type = FE_UPWARD; | |
1996 | break; | |
1997 | case RC_CHOP: | |
1998 | rnd_type = FE_TOWARDZERO; | |
1999 | break; | |
2000 | } | |
2001 | fesetround(rnd_type); | |
2002 | } | |
2003 | ||
1a9353d2 FB |
2004 | void OPPROTO op_fclex(void) |
2005 | { | |
2006 | env->fpus &= 0x7f00; | |
2007 | } | |
2008 | ||
2009 | void OPPROTO op_fninit(void) | |
2010 | { | |
2011 | env->fpus = 0; | |
2012 | env->fpstt = 0; | |
2013 | env->fpuc = 0x37f; | |
2014 | env->fptags[0] = 1; | |
2015 | env->fptags[1] = 1; | |
2016 | env->fptags[2] = 1; | |
2017 | env->fptags[3] = 1; | |
2018 | env->fptags[4] = 1; | |
2019 | env->fptags[5] = 1; | |
2020 | env->fptags[6] = 1; | |
2021 | env->fptags[7] = 1; | |
2022 | } | |
1b6b029e | 2023 | |
d0a1ffc9 FB |
2024 | void OPPROTO op_fnstenv_A0(void) |
2025 | { | |
2026 | helper_fstenv((uint8_t *)A0, PARAM1); | |
2027 | } | |
2028 | ||
2029 | void OPPROTO op_fldenv_A0(void) | |
2030 | { | |
2031 | helper_fldenv((uint8_t *)A0, PARAM1); | |
2032 | } | |
2033 | ||
2034 | void OPPROTO op_fnsave_A0(void) | |
2035 | { | |
2036 | helper_fsave((uint8_t *)A0, PARAM1); | |
2037 | } | |
2038 | ||
2039 | void OPPROTO op_frstor_A0(void) | |
2040 | { | |
2041 | helper_frstor((uint8_t *)A0, PARAM1); | |
2042 | } | |
2043 | ||
1b6b029e FB |
2044 | /* threading support */ |
2045 | void OPPROTO op_lock(void) | |
2046 | { | |
2047 | cpu_lock(); | |
2048 | } | |
2049 | ||
2050 | void OPPROTO op_unlock(void) | |
2051 | { | |
2052 | cpu_unlock(); | |
2053 | } | |
3ec9c4fc | 2054 |