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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 FB |
82 | |
83 | void OPPROTO op_addl_T0_T1_cc(void) | |
84 | { | |
85 | CC_SRC = T0; | |
86 | T0 += T1; | |
87 | CC_DST = T0; | |
88 | } | |
89 | ||
90 | void OPPROTO op_orl_T0_T1_cc(void) | |
91 | { | |
92 | T0 |= T1; | |
93 | CC_DST = T0; | |
94 | } | |
95 | ||
7bfdb6d1 FB |
96 | void OPPROTO op_andl_T0_T1_cc(void) |
97 | { | |
98 | T0 &= T1; | |
99 | CC_DST = T0; | |
100 | } | |
101 | ||
102 | void OPPROTO op_subl_T0_T1_cc(void) | |
103 | { | |
104 | CC_SRC = T0; | |
105 | T0 -= T1; | |
106 | CC_DST = T0; | |
107 | } | |
108 | ||
109 | void OPPROTO op_xorl_T0_T1_cc(void) | |
110 | { | |
111 | T0 ^= T1; | |
112 | CC_DST = T0; | |
113 | } | |
114 | ||
115 | void OPPROTO op_cmpl_T0_T1_cc(void) | |
116 | { | |
117 | CC_SRC = T0; | |
118 | CC_DST = T0 - T1; | |
119 | } | |
120 | ||
7bfdb6d1 FB |
121 | void OPPROTO op_negl_T0_cc(void) |
122 | { | |
123 | CC_SRC = 0; | |
124 | T0 = -T0; | |
125 | CC_DST = T0; | |
126 | } | |
127 | ||
128 | void OPPROTO op_incl_T0_cc(void) | |
129 | { | |
4b74fe1f | 130 | CC_SRC = cc_table[CC_OP].compute_c(); |
7bfdb6d1 FB |
131 | T0++; |
132 | CC_DST = T0; | |
133 | } | |
134 | ||
135 | void OPPROTO op_decl_T0_cc(void) | |
136 | { | |
4b74fe1f | 137 | CC_SRC = cc_table[CC_OP].compute_c(); |
7bfdb6d1 FB |
138 | T0--; |
139 | CC_DST = T0; | |
140 | } | |
141 | ||
142 | void OPPROTO op_testl_T0_T1_cc(void) | |
143 | { | |
7bfdb6d1 FB |
144 | CC_DST = T0 & T1; |
145 | } | |
146 | ||
dc99065b FB |
147 | /* operations without flags */ |
148 | ||
149 | void OPPROTO op_addl_T0_T1(void) | |
150 | { | |
151 | T0 += T1; | |
152 | } | |
153 | ||
154 | void OPPROTO op_orl_T0_T1(void) | |
155 | { | |
156 | T0 |= T1; | |
157 | } | |
158 | ||
159 | void OPPROTO op_andl_T0_T1(void) | |
160 | { | |
161 | T0 &= T1; | |
162 | } | |
163 | ||
164 | void OPPROTO op_subl_T0_T1(void) | |
165 | { | |
166 | T0 -= T1; | |
167 | } | |
168 | ||
169 | void OPPROTO op_xorl_T0_T1(void) | |
170 | { | |
171 | T0 ^= T1; | |
172 | } | |
173 | ||
174 | void OPPROTO op_negl_T0(void) | |
175 | { | |
176 | T0 = -T0; | |
177 | } | |
178 | ||
179 | void OPPROTO op_incl_T0(void) | |
180 | { | |
181 | T0++; | |
182 | } | |
183 | ||
184 | void OPPROTO op_decl_T0(void) | |
185 | { | |
186 | T0--; | |
187 | } | |
188 | ||
189 | void OPPROTO op_notl_T0(void) | |
190 | { | |
191 | T0 = ~T0; | |
192 | } | |
193 | ||
4b74fe1f FB |
194 | void OPPROTO op_bswapl_T0(void) |
195 | { | |
196 | T0 = bswap32(T0); | |
197 | } | |
198 | ||
7bfdb6d1 FB |
199 | /* multiply/divide */ |
200 | void OPPROTO op_mulb_AL_T0(void) | |
201 | { | |
202 | unsigned int res; | |
203 | res = (uint8_t)EAX * (uint8_t)T0; | |
204 | EAX = (EAX & 0xffff0000) | res; | |
205 | CC_SRC = (res & 0xff00); | |
206 | } | |
207 | ||
208 | void OPPROTO op_imulb_AL_T0(void) | |
209 | { | |
210 | int res; | |
211 | res = (int8_t)EAX * (int8_t)T0; | |
212 | EAX = (EAX & 0xffff0000) | (res & 0xffff); | |
213 | CC_SRC = (res != (int8_t)res); | |
214 | } | |
215 | ||
216 | void OPPROTO op_mulw_AX_T0(void) | |
217 | { | |
218 | unsigned int res; | |
219 | res = (uint16_t)EAX * (uint16_t)T0; | |
220 | EAX = (EAX & 0xffff0000) | (res & 0xffff); | |
221 | EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff); | |
222 | CC_SRC = res >> 16; | |
223 | } | |
224 | ||
225 | void OPPROTO op_imulw_AX_T0(void) | |
226 | { | |
227 | int res; | |
228 | res = (int16_t)EAX * (int16_t)T0; | |
229 | EAX = (EAX & 0xffff0000) | (res & 0xffff); | |
230 | EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff); | |
231 | CC_SRC = (res != (int16_t)res); | |
232 | } | |
233 | ||
234 | void OPPROTO op_mull_EAX_T0(void) | |
235 | { | |
236 | uint64_t res; | |
237 | res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0); | |
238 | EAX = res; | |
239 | EDX = res >> 32; | |
240 | CC_SRC = res >> 32; | |
241 | } | |
242 | ||
243 | void OPPROTO op_imull_EAX_T0(void) | |
244 | { | |
245 | int64_t res; | |
246 | res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0); | |
247 | EAX = res; | |
248 | EDX = res >> 32; | |
249 | CC_SRC = (res != (int32_t)res); | |
250 | } | |
251 | ||
252 | void OPPROTO op_imulw_T0_T1(void) | |
253 | { | |
254 | int res; | |
255 | res = (int16_t)T0 * (int16_t)T1; | |
256 | T0 = res; | |
257 | CC_SRC = (res != (int16_t)res); | |
258 | } | |
259 | ||
260 | void OPPROTO op_imull_T0_T1(void) | |
261 | { | |
262 | int64_t res; | |
4b74fe1f | 263 | res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1); |
7bfdb6d1 FB |
264 | T0 = res; |
265 | CC_SRC = (res != (int32_t)res); | |
266 | } | |
267 | ||
268 | /* division, flags are undefined */ | |
9de5e440 | 269 | /* XXX: add exceptions for overflow */ |
87f4827e | 270 | |
7bfdb6d1 FB |
271 | void OPPROTO op_divb_AL_T0(void) |
272 | { | |
273 | unsigned int num, den, q, r; | |
274 | ||
275 | num = (EAX & 0xffff); | |
276 | den = (T0 & 0xff); | |
f4beb510 FB |
277 | if (den == 0) { |
278 | EIP = PARAM1; | |
9de5e440 | 279 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 280 | } |
7bfdb6d1 FB |
281 | q = (num / den) & 0xff; |
282 | r = (num % den) & 0xff; | |
283 | EAX = (EAX & 0xffff0000) | (r << 8) | q; | |
284 | } | |
285 | ||
286 | void OPPROTO op_idivb_AL_T0(void) | |
287 | { | |
288 | int num, den, q, r; | |
289 | ||
290 | num = (int16_t)EAX; | |
291 | den = (int8_t)T0; | |
f4beb510 FB |
292 | if (den == 0) { |
293 | EIP = PARAM1; | |
9de5e440 | 294 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 295 | } |
7bfdb6d1 FB |
296 | q = (num / den) & 0xff; |
297 | r = (num % den) & 0xff; | |
298 | EAX = (EAX & 0xffff0000) | (r << 8) | q; | |
299 | } | |
300 | ||
301 | void OPPROTO op_divw_AX_T0(void) | |
302 | { | |
303 | unsigned int num, den, q, r; | |
304 | ||
305 | num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); | |
306 | den = (T0 & 0xffff); | |
f4beb510 FB |
307 | if (den == 0) { |
308 | EIP = PARAM1; | |
9de5e440 | 309 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 310 | } |
7bfdb6d1 FB |
311 | q = (num / den) & 0xffff; |
312 | r = (num % den) & 0xffff; | |
313 | EAX = (EAX & 0xffff0000) | q; | |
314 | EDX = (EDX & 0xffff0000) | r; | |
315 | } | |
316 | ||
317 | void OPPROTO op_idivw_AX_T0(void) | |
318 | { | |
319 | int num, den, q, r; | |
320 | ||
321 | num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); | |
322 | den = (int16_t)T0; | |
f4beb510 FB |
323 | if (den == 0) { |
324 | EIP = PARAM1; | |
9de5e440 | 325 | raise_exception(EXCP00_DIVZ); |
f4beb510 | 326 | } |
7bfdb6d1 FB |
327 | q = (num / den) & 0xffff; |
328 | r = (num % den) & 0xffff; | |
329 | EAX = (EAX & 0xffff0000) | q; | |
330 | EDX = (EDX & 0xffff0000) | r; | |
331 | } | |
332 | ||
333 | void OPPROTO op_divl_EAX_T0(void) | |
334 | { | |
87f4827e | 335 | helper_divl_EAX_T0(PARAM1); |
7bfdb6d1 FB |
336 | } |
337 | ||
338 | void OPPROTO op_idivl_EAX_T0(void) | |
339 | { | |
87f4827e | 340 | helper_idivl_EAX_T0(PARAM1); |
7bfdb6d1 FB |
341 | } |
342 | ||
dab2ed99 | 343 | /* constant load & misc op */ |
7bfdb6d1 | 344 | |
ba1c6e37 | 345 | void OPPROTO op_movl_T0_im(void) |
7bfdb6d1 FB |
346 | { |
347 | T0 = PARAM1; | |
348 | } | |
349 | ||
dab2ed99 FB |
350 | void OPPROTO op_addl_T0_im(void) |
351 | { | |
352 | T0 += PARAM1; | |
353 | } | |
354 | ||
355 | void OPPROTO op_andl_T0_ffff(void) | |
356 | { | |
357 | T0 = T0 & 0xffff; | |
358 | } | |
359 | ||
d8bc1fd0 FB |
360 | void OPPROTO op_andl_T0_im(void) |
361 | { | |
362 | T0 = T0 & PARAM1; | |
363 | } | |
364 | ||
dab2ed99 FB |
365 | void OPPROTO op_movl_T0_T1(void) |
366 | { | |
367 | T0 = T1; | |
368 | } | |
369 | ||
ba1c6e37 | 370 | void OPPROTO op_movl_T1_im(void) |
7bfdb6d1 FB |
371 | { |
372 | T1 = PARAM1; | |
373 | } | |
374 | ||
dab2ed99 FB |
375 | void OPPROTO op_addl_T1_im(void) |
376 | { | |
377 | T1 += PARAM1; | |
378 | } | |
379 | ||
380 | void OPPROTO op_movl_T1_A0(void) | |
381 | { | |
382 | T1 = A0; | |
383 | } | |
384 | ||
ba1c6e37 | 385 | void OPPROTO op_movl_A0_im(void) |
7bfdb6d1 FB |
386 | { |
387 | A0 = PARAM1; | |
388 | } | |
389 | ||
4b74fe1f FB |
390 | void OPPROTO op_addl_A0_im(void) |
391 | { | |
392 | A0 += PARAM1; | |
393 | } | |
394 | ||
31bb950b FB |
395 | void OPPROTO op_addl_A0_AL(void) |
396 | { | |
397 | A0 += (EAX & 0xff); | |
398 | } | |
399 | ||
4b74fe1f FB |
400 | void OPPROTO op_andl_A0_ffff(void) |
401 | { | |
402 | A0 = A0 & 0xffff; | |
403 | } | |
404 | ||
7bfdb6d1 FB |
405 | /* memory access */ |
406 | ||
407 | void OPPROTO op_ldub_T0_A0(void) | |
408 | { | |
409 | T0 = ldub((uint8_t *)A0); | |
410 | } | |
411 | ||
412 | void OPPROTO op_ldsb_T0_A0(void) | |
413 | { | |
414 | T0 = ldsb((int8_t *)A0); | |
415 | } | |
416 | ||
417 | void OPPROTO op_lduw_T0_A0(void) | |
418 | { | |
419 | T0 = lduw((uint8_t *)A0); | |
420 | } | |
421 | ||
422 | void OPPROTO op_ldsw_T0_A0(void) | |
423 | { | |
424 | T0 = ldsw((int8_t *)A0); | |
425 | } | |
426 | ||
427 | void OPPROTO op_ldl_T0_A0(void) | |
428 | { | |
429 | T0 = ldl((uint8_t *)A0); | |
430 | } | |
431 | ||
432 | void OPPROTO op_ldub_T1_A0(void) | |
433 | { | |
434 | T1 = ldub((uint8_t *)A0); | |
435 | } | |
436 | ||
437 | void OPPROTO op_ldsb_T1_A0(void) | |
438 | { | |
439 | T1 = ldsb((int8_t *)A0); | |
440 | } | |
441 | ||
442 | void OPPROTO op_lduw_T1_A0(void) | |
443 | { | |
444 | T1 = lduw((uint8_t *)A0); | |
445 | } | |
446 | ||
447 | void OPPROTO op_ldsw_T1_A0(void) | |
448 | { | |
449 | T1 = ldsw((int8_t *)A0); | |
450 | } | |
451 | ||
452 | void OPPROTO op_ldl_T1_A0(void) | |
453 | { | |
454 | T1 = ldl((uint8_t *)A0); | |
455 | } | |
456 | ||
457 | void OPPROTO op_stb_T0_A0(void) | |
458 | { | |
459 | stb((uint8_t *)A0, T0); | |
460 | } | |
461 | ||
462 | void OPPROTO op_stw_T0_A0(void) | |
463 | { | |
464 | stw((uint8_t *)A0, T0); | |
465 | } | |
466 | ||
467 | void OPPROTO op_stl_T0_A0(void) | |
468 | { | |
469 | stl((uint8_t *)A0, T0); | |
470 | } | |
471 | ||
4b74fe1f FB |
472 | /* used for bit operations */ |
473 | ||
474 | void OPPROTO op_add_bitw_A0_T1(void) | |
475 | { | |
476 | A0 += ((int32_t)T1 >> 4) << 1; | |
477 | } | |
478 | ||
479 | void OPPROTO op_add_bitl_A0_T1(void) | |
480 | { | |
481 | A0 += ((int32_t)T1 >> 5) << 2; | |
482 | } | |
7bfdb6d1 FB |
483 | |
484 | /* indirect jump */ | |
0ecfa993 | 485 | |
7bfdb6d1 FB |
486 | void OPPROTO op_jmp_T0(void) |
487 | { | |
dab2ed99 | 488 | EIP = T0; |
7bfdb6d1 FB |
489 | } |
490 | ||
491 | void OPPROTO op_jmp_im(void) | |
492 | { | |
dab2ed99 | 493 | EIP = PARAM1; |
7bfdb6d1 FB |
494 | } |
495 | ||
90a9fdae FB |
496 | void OPPROTO op_hlt(void) |
497 | { | |
498 | env->exception_index = EXCP_HLT; | |
499 | cpu_loop_exit(); | |
500 | } | |
501 | ||
f4beb510 | 502 | void OPPROTO op_raise_interrupt(void) |
0ecfa993 | 503 | { |
504e56eb | 504 | int intno; |
f4beb510 | 505 | unsigned int next_eip; |
504e56eb | 506 | intno = PARAM1; |
f4beb510 FB |
507 | next_eip = PARAM2; |
508 | raise_interrupt(intno, 1, 0, next_eip); | |
0ecfa993 FB |
509 | } |
510 | ||
564c8f99 | 511 | void OPPROTO op_raise_exception(void) |
0ecfa993 | 512 | { |
564c8f99 FB |
513 | int exception_index; |
514 | exception_index = PARAM1; | |
515 | raise_exception(exception_index); | |
0ecfa993 FB |
516 | } |
517 | ||
518 | void OPPROTO op_into(void) | |
519 | { | |
520 | int eflags; | |
521 | eflags = cc_table[CC_OP].compute_all(); | |
522 | if (eflags & CC_O) { | |
f4beb510 | 523 | raise_interrupt(EXCP04_INTO, 1, 0, PARAM1); |
a4a0ffdb | 524 | } |
504e56eb | 525 | FORCE_RET(); |
a4a0ffdb FB |
526 | } |
527 | ||
504e56eb FB |
528 | void OPPROTO op_cli(void) |
529 | { | |
530 | env->eflags &= ~IF_MASK; | |
531 | } | |
532 | ||
f631ef9b FB |
533 | void OPPROTO op_sti(void) |
534 | { | |
504e56eb | 535 | env->eflags |= IF_MASK; |
f631ef9b FB |
536 | } |
537 | ||
3acace13 | 538 | #if 0 |
f631ef9b | 539 | /* vm86plus instructions */ |
f631ef9b FB |
540 | void OPPROTO op_cli_vm(void) |
541 | { | |
542 | env->eflags &= ~VIF_MASK; | |
543 | } | |
544 | ||
545 | void OPPROTO op_sti_vm(void) | |
546 | { | |
547 | env->eflags |= VIF_MASK; | |
548 | if (env->eflags & VIP_MASK) { | |
549 | EIP = PARAM1; | |
550 | raise_exception(EXCP0D_GPF); | |
551 | } | |
552 | FORCE_RET(); | |
553 | } | |
3acace13 | 554 | #endif |
f631ef9b | 555 | |
a4a0ffdb FB |
556 | void OPPROTO op_boundw(void) |
557 | { | |
558 | int low, high, v; | |
559 | low = ldsw((uint8_t *)A0); | |
560 | high = ldsw((uint8_t *)A0 + 2); | |
561 | v = (int16_t)T0; | |
f4beb510 FB |
562 | if (v < low || v > high) { |
563 | EIP = PARAM1; | |
a4a0ffdb | 564 | raise_exception(EXCP05_BOUND); |
f4beb510 | 565 | } |
a4a0ffdb FB |
566 | FORCE_RET(); |
567 | } | |
568 | ||
569 | void OPPROTO op_boundl(void) | |
570 | { | |
571 | int low, high, v; | |
572 | low = ldl((uint8_t *)A0); | |
573 | high = ldl((uint8_t *)A0 + 4); | |
574 | v = T0; | |
f4beb510 FB |
575 | if (v < low || v > high) { |
576 | EIP = PARAM1; | |
a4a0ffdb | 577 | raise_exception(EXCP05_BOUND); |
f4beb510 | 578 | } |
a4a0ffdb FB |
579 | FORCE_RET(); |
580 | } | |
581 | ||
582 | void OPPROTO op_cmpxchg8b(void) | |
583 | { | |
87f4827e | 584 | helper_cmpxchg8b(); |
0ecfa993 FB |
585 | } |
586 | ||
d4e8164f FB |
587 | void OPPROTO op_jmp_tb_next(void) |
588 | { | |
589 | JUMP_TB(PARAM1, 0, PARAM2); | |
590 | } | |
591 | ||
592 | void OPPROTO op_movl_T0_0(void) | |
593 | { | |
594 | T0 = 0; | |
595 | } | |
596 | ||
597 | /* multiple size ops */ | |
7bfdb6d1 FB |
598 | |
599 | #define ldul ldl | |
600 | ||
7bfdb6d1 | 601 | #define SHIFT 0 |
367e86e8 | 602 | #include "ops_template.h" |
7bfdb6d1 FB |
603 | #undef SHIFT |
604 | ||
7bfdb6d1 | 605 | #define SHIFT 1 |
367e86e8 | 606 | #include "ops_template.h" |
7bfdb6d1 FB |
607 | #undef SHIFT |
608 | ||
7bfdb6d1 | 609 | #define SHIFT 2 |
367e86e8 | 610 | #include "ops_template.h" |
7bfdb6d1 FB |
611 | #undef SHIFT |
612 | ||
613 | /* sign extend */ | |
614 | ||
615 | void OPPROTO op_movsbl_T0_T0(void) | |
616 | { | |
617 | T0 = (int8_t)T0; | |
618 | } | |
619 | ||
620 | void OPPROTO op_movzbl_T0_T0(void) | |
621 | { | |
622 | T0 = (uint8_t)T0; | |
623 | } | |
624 | ||
625 | void OPPROTO op_movswl_T0_T0(void) | |
626 | { | |
627 | T0 = (int16_t)T0; | |
628 | } | |
629 | ||
630 | void OPPROTO op_movzwl_T0_T0(void) | |
631 | { | |
632 | T0 = (uint16_t)T0; | |
633 | } | |
634 | ||
635 | void OPPROTO op_movswl_EAX_AX(void) | |
636 | { | |
637 | EAX = (int16_t)EAX; | |
638 | } | |
639 | ||
640 | void OPPROTO op_movsbw_AX_AL(void) | |
641 | { | |
642 | EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff); | |
643 | } | |
644 | ||
645 | void OPPROTO op_movslq_EDX_EAX(void) | |
646 | { | |
647 | EDX = (int32_t)EAX >> 31; | |
648 | } | |
649 | ||
650 | void OPPROTO op_movswl_DX_AX(void) | |
651 | { | |
652 | EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff); | |
653 | } | |
654 | ||
655 | /* push/pop */ | |
7bfdb6d1 FB |
656 | |
657 | void op_pushl_T0(void) | |
658 | { | |
659 | uint32_t offset; | |
660 | offset = ESP - 4; | |
661 | stl((void *)offset, T0); | |
662 | /* modify ESP after to handle exceptions correctly */ | |
663 | ESP = offset; | |
664 | } | |
665 | ||
dab2ed99 FB |
666 | void op_pushw_T0(void) |
667 | { | |
668 | uint32_t offset; | |
669 | offset = ESP - 2; | |
670 | stw((void *)offset, T0); | |
671 | /* modify ESP after to handle exceptions correctly */ | |
672 | ESP = offset; | |
673 | } | |
674 | ||
675 | void op_pushl_ss32_T0(void) | |
7bfdb6d1 FB |
676 | { |
677 | uint32_t offset; | |
678 | offset = ESP - 4; | |
d8bc1fd0 | 679 | stl(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
680 | /* modify ESP after to handle exceptions correctly */ |
681 | ESP = offset; | |
682 | } | |
683 | ||
684 | void op_pushw_ss32_T0(void) | |
685 | { | |
686 | uint32_t offset; | |
687 | offset = ESP - 2; | |
d8bc1fd0 | 688 | stw(env->segs[R_SS].base + offset, T0); |
7bfdb6d1 FB |
689 | /* modify ESP after to handle exceptions correctly */ |
690 | ESP = offset; | |
691 | } | |
692 | ||
dab2ed99 FB |
693 | void op_pushl_ss16_T0(void) |
694 | { | |
695 | uint32_t offset; | |
696 | offset = (ESP - 4) & 0xffff; | |
d8bc1fd0 | 697 | stl(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
698 | /* modify ESP after to handle exceptions correctly */ |
699 | ESP = (ESP & ~0xffff) | offset; | |
700 | } | |
701 | ||
702 | void op_pushw_ss16_T0(void) | |
703 | { | |
704 | uint32_t offset; | |
705 | offset = (ESP - 2) & 0xffff; | |
d8bc1fd0 | 706 | stw(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
707 | /* modify ESP after to handle exceptions correctly */ |
708 | ESP = (ESP & ~0xffff) | offset; | |
709 | } | |
710 | ||
711 | /* NOTE: ESP update is done after */ | |
7bfdb6d1 FB |
712 | void op_popl_T0(void) |
713 | { | |
714 | T0 = ldl((void *)ESP); | |
dab2ed99 FB |
715 | } |
716 | ||
717 | void op_popw_T0(void) | |
718 | { | |
719 | T0 = lduw((void *)ESP); | |
720 | } | |
721 | ||
722 | void op_popl_ss32_T0(void) | |
723 | { | |
d8bc1fd0 | 724 | T0 = ldl(env->segs[R_SS].base + ESP); |
dab2ed99 FB |
725 | } |
726 | ||
727 | void op_popw_ss32_T0(void) | |
728 | { | |
d8bc1fd0 | 729 | T0 = lduw(env->segs[R_SS].base + ESP); |
dab2ed99 FB |
730 | } |
731 | ||
732 | void op_popl_ss16_T0(void) | |
733 | { | |
d8bc1fd0 | 734 | T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff)); |
dab2ed99 FB |
735 | } |
736 | ||
737 | void op_popw_ss16_T0(void) | |
738 | { | |
d8bc1fd0 | 739 | T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff)); |
dab2ed99 FB |
740 | } |
741 | ||
742 | void op_addl_ESP_4(void) | |
743 | { | |
7bfdb6d1 FB |
744 | ESP += 4; |
745 | } | |
746 | ||
dab2ed99 FB |
747 | void op_addl_ESP_2(void) |
748 | { | |
749 | ESP += 2; | |
750 | } | |
751 | ||
752 | void op_addw_ESP_4(void) | |
753 | { | |
754 | ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff); | |
755 | } | |
756 | ||
757 | void op_addw_ESP_2(void) | |
758 | { | |
759 | ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff); | |
760 | } | |
761 | ||
7bfdb6d1 FB |
762 | void op_addl_ESP_im(void) |
763 | { | |
764 | ESP += PARAM1; | |
765 | } | |
367e86e8 | 766 | |
dab2ed99 FB |
767 | void op_addw_ESP_im(void) |
768 | { | |
769 | ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff); | |
27362c82 FB |
770 | } |
771 | ||
a4a0ffdb | 772 | void OPPROTO op_rdtsc(void) |
27362c82 | 773 | { |
87f4827e | 774 | helper_rdtsc(); |
27362c82 FB |
775 | } |
776 | ||
a4a0ffdb FB |
777 | void OPPROTO op_cpuid(void) |
778 | { | |
779 | helper_cpuid(); | |
780 | } | |
781 | ||
27362c82 FB |
782 | /* bcd */ |
783 | ||
784 | /* XXX: exception */ | |
785 | void OPPROTO op_aam(void) | |
786 | { | |
787 | int base = PARAM1; | |
788 | int al, ah; | |
789 | al = EAX & 0xff; | |
790 | ah = al / base; | |
791 | al = al % base; | |
792 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
793 | CC_DST = al; | |
794 | } | |
795 | ||
796 | void OPPROTO op_aad(void) | |
797 | { | |
798 | int base = PARAM1; | |
799 | int al, ah; | |
800 | al = EAX & 0xff; | |
801 | ah = (EAX >> 8) & 0xff; | |
802 | al = ((ah * base) + al) & 0xff; | |
803 | EAX = (EAX & ~0xffff) | al; | |
804 | CC_DST = al; | |
805 | } | |
806 | ||
807 | void OPPROTO op_aaa(void) | |
808 | { | |
809 | int icarry; | |
810 | int al, ah, af; | |
811 | int eflags; | |
812 | ||
813 | eflags = cc_table[CC_OP].compute_all(); | |
814 | af = eflags & CC_A; | |
815 | al = EAX & 0xff; | |
816 | ah = (EAX >> 8) & 0xff; | |
817 | ||
818 | icarry = (al > 0xf9); | |
819 | if (((al & 0x0f) > 9 ) || af) { | |
820 | al = (al + 6) & 0x0f; | |
821 | ah = (ah + 1 + icarry) & 0xff; | |
822 | eflags |= CC_C | CC_A; | |
823 | } else { | |
824 | eflags &= ~(CC_C | CC_A); | |
825 | al &= 0x0f; | |
826 | } | |
827 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
828 | CC_SRC = eflags; | |
829 | } | |
830 | ||
831 | void OPPROTO op_aas(void) | |
832 | { | |
833 | int icarry; | |
834 | int al, ah, af; | |
835 | int eflags; | |
836 | ||
837 | eflags = cc_table[CC_OP].compute_all(); | |
838 | af = eflags & CC_A; | |
839 | al = EAX & 0xff; | |
840 | ah = (EAX >> 8) & 0xff; | |
841 | ||
842 | icarry = (al < 6); | |
843 | if (((al & 0x0f) > 9 ) || af) { | |
844 | al = (al - 6) & 0x0f; | |
845 | ah = (ah - 1 - icarry) & 0xff; | |
846 | eflags |= CC_C | CC_A; | |
847 | } else { | |
848 | eflags &= ~(CC_C | CC_A); | |
849 | al &= 0x0f; | |
850 | } | |
851 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
852 | CC_SRC = eflags; | |
853 | } | |
854 | ||
855 | void OPPROTO op_daa(void) | |
856 | { | |
857 | int al, af, cf; | |
858 | int eflags; | |
859 | ||
860 | eflags = cc_table[CC_OP].compute_all(); | |
861 | cf = eflags & CC_C; | |
862 | af = eflags & CC_A; | |
863 | al = EAX & 0xff; | |
864 | ||
865 | eflags = 0; | |
866 | if (((al & 0x0f) > 9 ) || af) { | |
867 | al = (al + 6) & 0xff; | |
868 | eflags |= CC_A; | |
869 | } | |
870 | if ((al > 0x9f) || cf) { | |
871 | al = (al + 0x60) & 0xff; | |
872 | eflags |= CC_C; | |
873 | } | |
874 | EAX = (EAX & ~0xff) | al; | |
875 | /* well, speed is not an issue here, so we compute the flags by hand */ | |
876 | eflags |= (al == 0) << 6; /* zf */ | |
877 | eflags |= parity_table[al]; /* pf */ | |
878 | eflags |= (al & 0x80); /* sf */ | |
879 | CC_SRC = eflags; | |
880 | } | |
881 | ||
882 | void OPPROTO op_das(void) | |
883 | { | |
884 | int al, al1, af, cf; | |
885 | int eflags; | |
886 | ||
887 | eflags = cc_table[CC_OP].compute_all(); | |
888 | cf = eflags & CC_C; | |
889 | af = eflags & CC_A; | |
890 | al = EAX & 0xff; | |
891 | ||
892 | eflags = 0; | |
893 | al1 = al; | |
894 | if (((al & 0x0f) > 9 ) || af) { | |
895 | eflags |= CC_A; | |
896 | if (al < 6 || cf) | |
897 | eflags |= CC_C; | |
898 | al = (al - 6) & 0xff; | |
899 | } | |
900 | if ((al1 > 0x99) || cf) { | |
901 | al = (al - 0x60) & 0xff; | |
902 | eflags |= CC_C; | |
903 | } | |
904 | EAX = (EAX & ~0xff) | al; | |
905 | /* well, speed is not an issue here, so we compute the flags by hand */ | |
906 | eflags |= (al == 0) << 6; /* zf */ | |
907 | eflags |= parity_table[al]; /* pf */ | |
908 | eflags |= (al & 0x80); /* sf */ | |
909 | CC_SRC = eflags; | |
910 | } | |
911 | ||
6dbad63e FB |
912 | /* segment handling */ |
913 | ||
6dbad63e FB |
914 | void OPPROTO op_movl_seg_T0(void) |
915 | { | |
f4beb510 FB |
916 | load_seg(PARAM1, T0 & 0xffff, PARAM2); |
917 | } | |
918 | ||
919 | /* faster VM86 version */ | |
920 | void OPPROTO op_movl_seg_T0_vm(void) | |
921 | { | |
922 | int selector; | |
d8bc1fd0 | 923 | SegmentCache *sc; |
f4beb510 FB |
924 | |
925 | selector = T0 & 0xffff; | |
926 | /* env->segs[] access */ | |
d8bc1fd0 FB |
927 | sc = (SegmentCache *)((char *)env + PARAM1); |
928 | sc->selector = selector; | |
929 | sc->base = (void *)(selector << 4); | |
6dbad63e FB |
930 | } |
931 | ||
932 | void OPPROTO op_movl_T0_seg(void) | |
933 | { | |
d8bc1fd0 | 934 | T0 = env->segs[PARAM1].selector; |
6dbad63e FB |
935 | } |
936 | ||
a4a0ffdb FB |
937 | void OPPROTO op_movl_A0_seg(void) |
938 | { | |
939 | A0 = *(unsigned long *)((char *)env + PARAM1); | |
940 | } | |
941 | ||
6dbad63e FB |
942 | void OPPROTO op_addl_A0_seg(void) |
943 | { | |
944 | A0 += *(unsigned long *)((char *)env + PARAM1); | |
945 | } | |
946 | ||
2792c4f2 FB |
947 | void OPPROTO op_lsl(void) |
948 | { | |
949 | helper_lsl(); | |
950 | } | |
951 | ||
2792c4f2 FB |
952 | void OPPROTO op_lar(void) |
953 | { | |
954 | helper_lar(); | |
955 | } | |
956 | ||
d8bc1fd0 FB |
957 | /* T0: segment, T1:eip */ |
958 | void OPPROTO op_ljmp_T0_T1(void) | |
959 | { | |
960 | jmp_seg(T0 & 0xffff, T1); | |
961 | } | |
962 | ||
90a9fdae FB |
963 | void OPPROTO op_iret_protected(void) |
964 | { | |
965 | helper_iret_protected(PARAM1); | |
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 FB |
1029 | if (T0) |
1030 | JUMP_TB(PARAM1, 0, PARAM2); | |
367e86e8 | 1031 | else |
d4e8164f | 1032 | JUMP_TB(PARAM1, 1, PARAM3); |
0ecfa993 | 1033 | FORCE_RET(); |
367e86e8 FB |
1034 | } |
1035 | ||
1036 | /* slow set cases (compute x86 flags) */ | |
1037 | void OPPROTO op_seto_T0_cc(void) | |
1038 | { | |
1039 | int eflags; | |
1040 | eflags = cc_table[CC_OP].compute_all(); | |
1041 | T0 = (eflags >> 11) & 1; | |
1042 | } | |
1043 | ||
1044 | void OPPROTO op_setb_T0_cc(void) | |
1045 | { | |
1046 | T0 = cc_table[CC_OP].compute_c(); | |
1047 | } | |
1048 | ||
1049 | void OPPROTO op_setz_T0_cc(void) | |
1050 | { | |
1051 | int eflags; | |
1052 | eflags = cc_table[CC_OP].compute_all(); | |
1053 | T0 = (eflags >> 6) & 1; | |
1054 | } | |
1055 | ||
1056 | void OPPROTO op_setbe_T0_cc(void) | |
1057 | { | |
1058 | int eflags; | |
1059 | eflags = cc_table[CC_OP].compute_all(); | |
1060 | T0 = (eflags & (CC_Z | CC_C)) != 0; | |
1061 | } | |
1062 | ||
1063 | void OPPROTO op_sets_T0_cc(void) | |
1064 | { | |
1065 | int eflags; | |
1066 | eflags = cc_table[CC_OP].compute_all(); | |
1067 | T0 = (eflags >> 7) & 1; | |
1068 | } | |
1069 | ||
1070 | void OPPROTO op_setp_T0_cc(void) | |
1071 | { | |
1072 | int eflags; | |
1073 | eflags = cc_table[CC_OP].compute_all(); | |
1074 | T0 = (eflags >> 2) & 1; | |
1075 | } | |
1076 | ||
1077 | void OPPROTO op_setl_T0_cc(void) | |
1078 | { | |
1079 | int eflags; | |
1080 | eflags = cc_table[CC_OP].compute_all(); | |
1081 | T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1; | |
1082 | } | |
1083 | ||
1084 | void OPPROTO op_setle_T0_cc(void) | |
1085 | { | |
1086 | int eflags; | |
1087 | eflags = cc_table[CC_OP].compute_all(); | |
1088 | T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0; | |
1089 | } | |
1090 | ||
1091 | void OPPROTO op_xor_T0_1(void) | |
1092 | { | |
1093 | T0 ^= 1; | |
1094 | } | |
1095 | ||
1096 | void OPPROTO op_set_cc_op(void) | |
1097 | { | |
1098 | CC_OP = PARAM1; | |
1099 | } | |
1100 | ||
90a9fdae | 1101 | #define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff) |
a4a0ffdb | 1102 | |
367e86e8 FB |
1103 | void OPPROTO op_movl_eflags_T0(void) |
1104 | { | |
a4a0ffdb FB |
1105 | int eflags; |
1106 | eflags = T0; | |
1107 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1108 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1109 | /* we also update some system flags as in user mode */ | |
90a9fdae FB |
1110 | env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | |
1111 | (eflags & FL_UPDATE_MASK32); | |
f631ef9b FB |
1112 | } |
1113 | ||
1114 | void OPPROTO op_movw_eflags_T0(void) | |
1115 | { | |
1116 | int eflags; | |
1117 | eflags = T0; | |
1118 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1119 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1120 | /* we also update some system flags as in user mode */ | |
90a9fdae FB |
1121 | env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | |
1122 | (eflags & FL_UPDATE_MASK16); | |
1123 | } | |
1124 | ||
1125 | void OPPROTO op_movl_eflags_T0_cpl0(void) | |
1126 | { | |
1127 | load_eflags(T0, FL_UPDATE_CPL0_MASK); | |
1128 | } | |
1129 | ||
1130 | void OPPROTO op_movw_eflags_T0_cpl0(void) | |
1131 | { | |
1132 | load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff); | |
f631ef9b FB |
1133 | } |
1134 | ||
3acace13 FB |
1135 | #if 0 |
1136 | /* vm86plus version */ | |
f631ef9b FB |
1137 | void OPPROTO op_movw_eflags_T0_vm(void) |
1138 | { | |
1139 | int eflags; | |
1140 | eflags = T0; | |
1141 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1142 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1143 | /* we also update some system flags as in user mode */ | |
1144 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) | | |
1145 | (eflags & FL_UPDATE_MASK16); | |
1146 | if (eflags & IF_MASK) { | |
1147 | env->eflags |= VIF_MASK; | |
1148 | if (env->eflags & VIP_MASK) { | |
1149 | EIP = PARAM1; | |
1150 | raise_exception(EXCP0D_GPF); | |
1151 | } | |
1152 | } | |
1153 | FORCE_RET(); | |
1154 | } | |
1155 | ||
1156 | void OPPROTO op_movl_eflags_T0_vm(void) | |
1157 | { | |
1158 | int eflags; | |
1159 | eflags = T0; | |
1160 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1161 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1162 | /* we also update some system flags as in user mode */ | |
1163 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) | | |
1164 | (eflags & FL_UPDATE_MASK32); | |
1165 | if (eflags & IF_MASK) { | |
1166 | env->eflags |= VIF_MASK; | |
1167 | if (env->eflags & VIP_MASK) { | |
1168 | EIP = PARAM1; | |
1169 | raise_exception(EXCP0D_GPF); | |
1170 | } | |
1171 | } | |
1172 | FORCE_RET(); | |
367e86e8 | 1173 | } |
3acace13 | 1174 | #endif |
367e86e8 FB |
1175 | |
1176 | /* XXX: compute only O flag */ | |
1177 | void OPPROTO op_movb_eflags_T0(void) | |
1178 | { | |
1179 | int of; | |
1180 | of = cc_table[CC_OP].compute_all() & CC_O; | |
a4a0ffdb | 1181 | CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of; |
367e86e8 FB |
1182 | } |
1183 | ||
1184 | void OPPROTO op_movl_T0_eflags(void) | |
1185 | { | |
a4a0ffdb FB |
1186 | int eflags; |
1187 | eflags = cc_table[CC_OP].compute_all(); | |
1188 | eflags |= (DF & DF_MASK); | |
1189 | eflags |= env->eflags & ~(VM_MASK | RF_MASK); | |
1190 | T0 = eflags; | |
367e86e8 FB |
1191 | } |
1192 | ||
3acace13 FB |
1193 | /* vm86plus version */ |
1194 | #if 0 | |
f631ef9b FB |
1195 | void OPPROTO op_movl_T0_eflags_vm(void) |
1196 | { | |
1197 | int eflags; | |
1198 | eflags = cc_table[CC_OP].compute_all(); | |
1199 | eflags |= (DF & DF_MASK); | |
1200 | eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK); | |
1201 | if (env->eflags & VIF_MASK) | |
1202 | eflags |= IF_MASK; | |
1203 | T0 = eflags; | |
1204 | } | |
3acace13 | 1205 | #endif |
f631ef9b | 1206 | |
367e86e8 FB |
1207 | void OPPROTO op_cld(void) |
1208 | { | |
1209 | DF = 1; | |
1210 | } | |
1211 | ||
1212 | void OPPROTO op_std(void) | |
1213 | { | |
1214 | DF = -1; | |
1215 | } | |
1216 | ||
1217 | void OPPROTO op_clc(void) | |
1218 | { | |
1219 | int eflags; | |
1220 | eflags = cc_table[CC_OP].compute_all(); | |
1221 | eflags &= ~CC_C; | |
1222 | CC_SRC = eflags; | |
1223 | } | |
1224 | ||
1225 | void OPPROTO op_stc(void) | |
1226 | { | |
1227 | int eflags; | |
1228 | eflags = cc_table[CC_OP].compute_all(); | |
1229 | eflags |= CC_C; | |
1230 | CC_SRC = eflags; | |
1231 | } | |
1232 | ||
1233 | void OPPROTO op_cmc(void) | |
1234 | { | |
1235 | int eflags; | |
1236 | eflags = cc_table[CC_OP].compute_all(); | |
1237 | eflags ^= CC_C; | |
1238 | CC_SRC = eflags; | |
1239 | } | |
1240 | ||
27362c82 FB |
1241 | void OPPROTO op_salc(void) |
1242 | { | |
1243 | int cf; | |
1244 | cf = cc_table[CC_OP].compute_c(); | |
1245 | EAX = (EAX & ~0xff) | ((-cf) & 0xff); | |
1246 | } | |
1247 | ||
367e86e8 FB |
1248 | static int compute_all_eflags(void) |
1249 | { | |
1250 | return CC_SRC; | |
1251 | } | |
1252 | ||
1253 | static int compute_c_eflags(void) | |
1254 | { | |
1255 | return CC_SRC & CC_C; | |
1256 | } | |
1257 | ||
1258 | static int compute_c_mul(void) | |
1259 | { | |
1260 | int cf; | |
1261 | cf = (CC_SRC != 0); | |
1262 | return cf; | |
1263 | } | |
1264 | ||
1265 | static int compute_all_mul(void) | |
1266 | { | |
1267 | int cf, pf, af, zf, sf, of; | |
1268 | cf = (CC_SRC != 0); | |
1269 | pf = 0; /* undefined */ | |
1270 | af = 0; /* undefined */ | |
1271 | zf = 0; /* undefined */ | |
1272 | sf = 0; /* undefined */ | |
1273 | of = cf << 11; | |
1274 | return cf | pf | af | zf | sf | of; | |
1275 | } | |
1276 | ||
1277 | CCTable cc_table[CC_OP_NB] = { | |
1278 | [CC_OP_DYNAMIC] = { /* should never happen */ }, | |
1279 | ||
1280 | [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags }, | |
1281 | ||
1282 | [CC_OP_MUL] = { compute_all_mul, compute_c_mul }, | |
1283 | ||
1284 | [CC_OP_ADDB] = { compute_all_addb, compute_c_addb }, | |
1285 | [CC_OP_ADDW] = { compute_all_addw, compute_c_addw }, | |
1286 | [CC_OP_ADDL] = { compute_all_addl, compute_c_addl }, | |
1287 | ||
4b74fe1f FB |
1288 | [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb }, |
1289 | [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw }, | |
1290 | [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl }, | |
1291 | ||
367e86e8 FB |
1292 | [CC_OP_SUBB] = { compute_all_subb, compute_c_subb }, |
1293 | [CC_OP_SUBW] = { compute_all_subw, compute_c_subw }, | |
1294 | [CC_OP_SUBL] = { compute_all_subl, compute_c_subl }, | |
1295 | ||
4b74fe1f FB |
1296 | [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb }, |
1297 | [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw }, | |
1298 | [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl }, | |
1299 | ||
367e86e8 FB |
1300 | [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb }, |
1301 | [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw }, | |
1302 | [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl }, | |
1303 | ||
4b74fe1f FB |
1304 | [CC_OP_INCB] = { compute_all_incb, compute_c_incl }, |
1305 | [CC_OP_INCW] = { compute_all_incw, compute_c_incl }, | |
367e86e8 FB |
1306 | [CC_OP_INCL] = { compute_all_incl, compute_c_incl }, |
1307 | ||
4b74fe1f FB |
1308 | [CC_OP_DECB] = { compute_all_decb, compute_c_incl }, |
1309 | [CC_OP_DECW] = { compute_all_decw, compute_c_incl }, | |
367e86e8 FB |
1310 | [CC_OP_DECL] = { compute_all_decl, compute_c_incl }, |
1311 | ||
2792c4f2 FB |
1312 | [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb }, |
1313 | [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw }, | |
367e86e8 | 1314 | [CC_OP_SHLL] = { compute_all_shll, compute_c_shll }, |
4b74fe1f | 1315 | |
2792c4f2 FB |
1316 | [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl }, |
1317 | [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl }, | |
1318 | [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl }, | |
367e86e8 | 1319 | }; |
927f621e | 1320 | |
f631ef9b FB |
1321 | /* floating point support. Some of the code for complicated x87 |
1322 | functions comes from the LGPL'ed x86 emulator found in the Willows | |
1323 | TWIN windows emulator. */ | |
927f621e | 1324 | |
51fe6890 FB |
1325 | #if defined(__powerpc__) |
1326 | extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble); | |
1327 | ||
1328 | /* correct (but slow) PowerPC rint() (glibc version is incorrect) */ | |
1329 | double qemu_rint(double x) | |
1330 | { | |
1331 | double y = 4503599627370496.0; | |
1332 | if (fabs(x) >= y) | |
1333 | return x; | |
1334 | if (x < 0) | |
1335 | y = -y; | |
1336 | y = (x + y) - y; | |
1337 | if (y == 0.0) | |
1338 | y = copysign(y, x); | |
1339 | return y; | |
1340 | } | |
1341 | ||
1342 | #define rint qemu_rint | |
1343 | #endif | |
1344 | ||
927f621e FB |
1345 | /* fp load FT0 */ |
1346 | ||
1347 | void OPPROTO op_flds_FT0_A0(void) | |
1348 | { | |
d014c98c FB |
1349 | #ifdef USE_FP_CONVERT |
1350 | FP_CONVERT.i32 = ldl((void *)A0); | |
1351 | FT0 = FP_CONVERT.f; | |
1352 | #else | |
927f621e | 1353 | FT0 = ldfl((void *)A0); |
d014c98c | 1354 | #endif |
927f621e FB |
1355 | } |
1356 | ||
1357 | void OPPROTO op_fldl_FT0_A0(void) | |
1358 | { | |
d014c98c FB |
1359 | #ifdef USE_FP_CONVERT |
1360 | FP_CONVERT.i64 = ldq((void *)A0); | |
1361 | FT0 = FP_CONVERT.d; | |
1362 | #else | |
927f621e | 1363 | FT0 = ldfq((void *)A0); |
d014c98c | 1364 | #endif |
927f621e FB |
1365 | } |
1366 | ||
04369ff2 FB |
1367 | /* helpers are needed to avoid static constant reference. XXX: find a better way */ |
1368 | #ifdef USE_INT_TO_FLOAT_HELPERS | |
1369 | ||
1370 | void helper_fild_FT0_A0(void) | |
1371 | { | |
1372 | FT0 = (CPU86_LDouble)ldsw((void *)A0); | |
1373 | } | |
1374 | ||
1375 | void helper_fildl_FT0_A0(void) | |
1376 | { | |
1377 | FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); | |
1378 | } | |
1379 | ||
1380 | void helper_fildll_FT0_A0(void) | |
1381 | { | |
1382 | FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); | |
1383 | } | |
1384 | ||
1385 | void OPPROTO op_fild_FT0_A0(void) | |
1386 | { | |
1387 | helper_fild_FT0_A0(); | |
1388 | } | |
1389 | ||
1390 | void OPPROTO op_fildl_FT0_A0(void) | |
1391 | { | |
1392 | helper_fildl_FT0_A0(); | |
1393 | } | |
1394 | ||
1395 | void OPPROTO op_fildll_FT0_A0(void) | |
1396 | { | |
1397 | helper_fildll_FT0_A0(); | |
1398 | } | |
1399 | ||
1400 | #else | |
1401 | ||
927f621e FB |
1402 | void OPPROTO op_fild_FT0_A0(void) |
1403 | { | |
d014c98c FB |
1404 | #ifdef USE_FP_CONVERT |
1405 | FP_CONVERT.i32 = ldsw((void *)A0); | |
1406 | FT0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1407 | #else | |
927f621e | 1408 | FT0 = (CPU86_LDouble)ldsw((void *)A0); |
d014c98c | 1409 | #endif |
927f621e FB |
1410 | } |
1411 | ||
1412 | void OPPROTO op_fildl_FT0_A0(void) | |
1413 | { | |
d014c98c FB |
1414 | #ifdef USE_FP_CONVERT |
1415 | FP_CONVERT.i32 = (int32_t) ldl((void *)A0); | |
1416 | FT0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1417 | #else | |
927f621e | 1418 | FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); |
d014c98c | 1419 | #endif |
927f621e FB |
1420 | } |
1421 | ||
1422 | void OPPROTO op_fildll_FT0_A0(void) | |
1423 | { | |
d014c98c FB |
1424 | #ifdef USE_FP_CONVERT |
1425 | FP_CONVERT.i64 = (int64_t) ldq((void *)A0); | |
1426 | FT0 = (CPU86_LDouble)FP_CONVERT.i64; | |
1427 | #else | |
927f621e | 1428 | FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); |
d014c98c | 1429 | #endif |
927f621e | 1430 | } |
04369ff2 | 1431 | #endif |
927f621e FB |
1432 | |
1433 | /* fp load ST0 */ | |
1434 | ||
1435 | void OPPROTO op_flds_ST0_A0(void) | |
1436 | { | |
d014c98c FB |
1437 | #ifdef USE_FP_CONVERT |
1438 | FP_CONVERT.i32 = ldl((void *)A0); | |
1439 | ST0 = FP_CONVERT.f; | |
1440 | #else | |
927f621e | 1441 | ST0 = ldfl((void *)A0); |
d014c98c | 1442 | #endif |
927f621e FB |
1443 | } |
1444 | ||
1445 | void OPPROTO op_fldl_ST0_A0(void) | |
1446 | { | |
d014c98c FB |
1447 | #ifdef USE_FP_CONVERT |
1448 | FP_CONVERT.i64 = ldq((void *)A0); | |
1449 | ST0 = FP_CONVERT.d; | |
1450 | #else | |
927f621e | 1451 | ST0 = ldfq((void *)A0); |
d014c98c | 1452 | #endif |
927f621e FB |
1453 | } |
1454 | ||
77f8dd5a FB |
1455 | #ifdef USE_X86LDOUBLE |
1456 | void OPPROTO op_fldt_ST0_A0(void) | |
1457 | { | |
1458 | ST0 = *(long double *)A0; | |
1459 | } | |
1460 | #else | |
77f8dd5a FB |
1461 | void OPPROTO op_fldt_ST0_A0(void) |
1462 | { | |
1463 | helper_fldt_ST0_A0(); | |
1464 | } | |
1465 | #endif | |
1466 | ||
04369ff2 FB |
1467 | /* helpers are needed to avoid static constant reference. XXX: find a better way */ |
1468 | #ifdef USE_INT_TO_FLOAT_HELPERS | |
1469 | ||
1470 | void helper_fild_ST0_A0(void) | |
1471 | { | |
1472 | ST0 = (CPU86_LDouble)ldsw((void *)A0); | |
1473 | } | |
1474 | ||
1475 | void helper_fildl_ST0_A0(void) | |
1476 | { | |
1477 | ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); | |
1478 | } | |
1479 | ||
1480 | void helper_fildll_ST0_A0(void) | |
1481 | { | |
1482 | ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); | |
1483 | } | |
1484 | ||
1485 | void OPPROTO op_fild_ST0_A0(void) | |
1486 | { | |
1487 | helper_fild_ST0_A0(); | |
1488 | } | |
1489 | ||
1490 | void OPPROTO op_fildl_ST0_A0(void) | |
1491 | { | |
1492 | helper_fildl_ST0_A0(); | |
1493 | } | |
1494 | ||
1495 | void OPPROTO op_fildll_ST0_A0(void) | |
1496 | { | |
1497 | helper_fildll_ST0_A0(); | |
1498 | } | |
1499 | ||
1500 | #else | |
1501 | ||
927f621e FB |
1502 | void OPPROTO op_fild_ST0_A0(void) |
1503 | { | |
d014c98c FB |
1504 | #ifdef USE_FP_CONVERT |
1505 | FP_CONVERT.i32 = ldsw((void *)A0); | |
1506 | ST0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1507 | #else | |
927f621e | 1508 | ST0 = (CPU86_LDouble)ldsw((void *)A0); |
d014c98c | 1509 | #endif |
927f621e FB |
1510 | } |
1511 | ||
1512 | void OPPROTO op_fildl_ST0_A0(void) | |
1513 | { | |
d014c98c FB |
1514 | #ifdef USE_FP_CONVERT |
1515 | FP_CONVERT.i32 = (int32_t) ldl((void *)A0); | |
1516 | ST0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1517 | #else | |
927f621e | 1518 | ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); |
d014c98c | 1519 | #endif |
927f621e FB |
1520 | } |
1521 | ||
1522 | void OPPROTO op_fildll_ST0_A0(void) | |
1523 | { | |
d014c98c FB |
1524 | #ifdef USE_FP_CONVERT |
1525 | FP_CONVERT.i64 = (int64_t) ldq((void *)A0); | |
1526 | ST0 = (CPU86_LDouble)FP_CONVERT.i64; | |
1527 | #else | |
927f621e | 1528 | ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); |
d014c98c | 1529 | #endif |
927f621e FB |
1530 | } |
1531 | ||
04369ff2 FB |
1532 | #endif |
1533 | ||
927f621e FB |
1534 | /* fp store */ |
1535 | ||
1536 | void OPPROTO op_fsts_ST0_A0(void) | |
1537 | { | |
d014c98c | 1538 | #ifdef USE_FP_CONVERT |
87f4827e | 1539 | FP_CONVERT.f = (float)ST0; |
d014c98c FB |
1540 | stfl((void *)A0, FP_CONVERT.f); |
1541 | #else | |
927f621e | 1542 | stfl((void *)A0, (float)ST0); |
d014c98c | 1543 | #endif |
927f621e FB |
1544 | } |
1545 | ||
1546 | void OPPROTO op_fstl_ST0_A0(void) | |
1547 | { | |
77f8dd5a | 1548 | stfq((void *)A0, (double)ST0); |
927f621e FB |
1549 | } |
1550 | ||
77f8dd5a FB |
1551 | #ifdef USE_X86LDOUBLE |
1552 | void OPPROTO op_fstt_ST0_A0(void) | |
1553 | { | |
1554 | *(long double *)A0 = ST0; | |
1555 | } | |
1556 | #else | |
77f8dd5a FB |
1557 | void OPPROTO op_fstt_ST0_A0(void) |
1558 | { | |
1559 | helper_fstt_ST0_A0(); | |
1560 | } | |
1561 | #endif | |
1562 | ||
927f621e FB |
1563 | void OPPROTO op_fist_ST0_A0(void) |
1564 | { | |
d014c98c FB |
1565 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1566 | register CPU86_LDouble d asm("o0"); | |
1567 | #else | |
1568 | CPU86_LDouble d; | |
1569 | #endif | |
927f621e | 1570 | int val; |
d014c98c FB |
1571 | |
1572 | d = ST0; | |
1573 | val = lrint(d); | |
1e5ffbed FB |
1574 | if (val != (int16_t)val) |
1575 | val = -32768; | |
927f621e FB |
1576 | stw((void *)A0, val); |
1577 | } | |
1578 | ||
1579 | void OPPROTO op_fistl_ST0_A0(void) | |
1580 | { | |
d014c98c FB |
1581 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1582 | register CPU86_LDouble d asm("o0"); | |
1583 | #else | |
1584 | CPU86_LDouble d; | |
1585 | #endif | |
927f621e | 1586 | int val; |
d014c98c FB |
1587 | |
1588 | d = ST0; | |
1589 | val = lrint(d); | |
927f621e FB |
1590 | stl((void *)A0, val); |
1591 | } | |
1592 | ||
1593 | void OPPROTO op_fistll_ST0_A0(void) | |
1594 | { | |
d014c98c FB |
1595 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1596 | register CPU86_LDouble d asm("o0"); | |
1597 | #else | |
1598 | CPU86_LDouble d; | |
1599 | #endif | |
927f621e | 1600 | int64_t val; |
d014c98c FB |
1601 | |
1602 | d = ST0; | |
1603 | val = llrint(d); | |
927f621e FB |
1604 | stq((void *)A0, val); |
1605 | } | |
1606 | ||
77f8dd5a FB |
1607 | void OPPROTO op_fbld_ST0_A0(void) |
1608 | { | |
1609 | helper_fbld_ST0_A0(); | |
1610 | } | |
1611 | ||
77f8dd5a FB |
1612 | void OPPROTO op_fbst_ST0_A0(void) |
1613 | { | |
1614 | helper_fbst_ST0_A0(); | |
1615 | } | |
1616 | ||
927f621e FB |
1617 | /* FPU move */ |
1618 | ||
927f621e FB |
1619 | void OPPROTO op_fpush(void) |
1620 | { | |
1621 | fpush(); | |
1622 | } | |
1623 | ||
1624 | void OPPROTO op_fpop(void) | |
1625 | { | |
1626 | fpop(); | |
1627 | } | |
1628 | ||
1629 | void OPPROTO op_fdecstp(void) | |
1630 | { | |
1631 | env->fpstt = (env->fpstt - 1) & 7; | |
1632 | env->fpus &= (~0x4700); | |
1633 | } | |
1634 | ||
1635 | void OPPROTO op_fincstp(void) | |
1636 | { | |
1637 | env->fpstt = (env->fpstt + 1) & 7; | |
1638 | env->fpus &= (~0x4700); | |
1639 | } | |
1640 | ||
1641 | void OPPROTO op_fmov_ST0_FT0(void) | |
1642 | { | |
1643 | ST0 = FT0; | |
1644 | } | |
1645 | ||
1646 | void OPPROTO op_fmov_FT0_STN(void) | |
1647 | { | |
1648 | FT0 = ST(PARAM1); | |
1649 | } | |
1650 | ||
1651 | void OPPROTO op_fmov_ST0_STN(void) | |
1652 | { | |
1653 | ST0 = ST(PARAM1); | |
1654 | } | |
1655 | ||
1656 | void OPPROTO op_fmov_STN_ST0(void) | |
1657 | { | |
1658 | ST(PARAM1) = ST0; | |
1659 | } | |
1660 | ||
1661 | void OPPROTO op_fxchg_ST0_STN(void) | |
1662 | { | |
1663 | CPU86_LDouble tmp; | |
1664 | tmp = ST(PARAM1); | |
1665 | ST(PARAM1) = ST0; | |
1666 | ST0 = tmp; | |
1667 | } | |
1668 | ||
1669 | /* FPU operations */ | |
1670 | ||
1671 | /* XXX: handle nans */ | |
1672 | void OPPROTO op_fcom_ST0_FT0(void) | |
1673 | { | |
1674 | env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ | |
1675 | if (ST0 < FT0) | |
1676 | env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ | |
1677 | else if (ST0 == FT0) | |
1678 | env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ | |
1679 | FORCE_RET(); | |
1680 | } | |
1681 | ||
77f8dd5a FB |
1682 | /* XXX: handle nans */ |
1683 | void OPPROTO op_fucom_ST0_FT0(void) | |
1684 | { | |
1685 | env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ | |
1686 | if (ST0 < FT0) | |
1687 | env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ | |
1688 | else if (ST0 == FT0) | |
1689 | env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ | |
1690 | FORCE_RET(); | |
1691 | } | |
1692 | ||
d0a1ffc9 FB |
1693 | /* XXX: handle nans */ |
1694 | void OPPROTO op_fcomi_ST0_FT0(void) | |
1695 | { | |
1696 | int eflags; | |
1697 | eflags = cc_table[CC_OP].compute_all(); | |
1698 | eflags &= ~(CC_Z | CC_P | CC_C); | |
1699 | if (ST0 < FT0) | |
1700 | eflags |= CC_C; | |
1701 | else if (ST0 == FT0) | |
1702 | eflags |= CC_Z; | |
1703 | CC_SRC = eflags; | |
1704 | FORCE_RET(); | |
1705 | } | |
1706 | ||
1707 | /* XXX: handle nans */ | |
1708 | void OPPROTO op_fucomi_ST0_FT0(void) | |
1709 | { | |
1710 | int eflags; | |
1711 | eflags = cc_table[CC_OP].compute_all(); | |
1712 | eflags &= ~(CC_Z | CC_P | CC_C); | |
1713 | if (ST0 < FT0) | |
1714 | eflags |= CC_C; | |
1715 | else if (ST0 == FT0) | |
1716 | eflags |= CC_Z; | |
1717 | CC_SRC = eflags; | |
1718 | FORCE_RET(); | |
1719 | } | |
1720 | ||
927f621e FB |
1721 | void OPPROTO op_fadd_ST0_FT0(void) |
1722 | { | |
1723 | ST0 += FT0; | |
1724 | } | |
1725 | ||
1726 | void OPPROTO op_fmul_ST0_FT0(void) | |
1727 | { | |
1728 | ST0 *= FT0; | |
1729 | } | |
1730 | ||
1731 | void OPPROTO op_fsub_ST0_FT0(void) | |
1732 | { | |
1733 | ST0 -= FT0; | |
1734 | } | |
1735 | ||
1736 | void OPPROTO op_fsubr_ST0_FT0(void) | |
1737 | { | |
1738 | ST0 = FT0 - ST0; | |
1739 | } | |
1740 | ||
1741 | void OPPROTO op_fdiv_ST0_FT0(void) | |
1742 | { | |
1743 | ST0 /= FT0; | |
1744 | } | |
1745 | ||
1746 | void OPPROTO op_fdivr_ST0_FT0(void) | |
1747 | { | |
1748 | ST0 = FT0 / ST0; | |
1749 | } | |
1750 | ||
1751 | /* fp operations between STN and ST0 */ | |
1752 | ||
1753 | void OPPROTO op_fadd_STN_ST0(void) | |
1754 | { | |
1755 | ST(PARAM1) += ST0; | |
1756 | } | |
1757 | ||
1758 | void OPPROTO op_fmul_STN_ST0(void) | |
1759 | { | |
1760 | ST(PARAM1) *= ST0; | |
1761 | } | |
1762 | ||
1763 | void OPPROTO op_fsub_STN_ST0(void) | |
1764 | { | |
1765 | ST(PARAM1) -= ST0; | |
1766 | } | |
1767 | ||
1768 | void OPPROTO op_fsubr_STN_ST0(void) | |
1769 | { | |
1770 | CPU86_LDouble *p; | |
1771 | p = &ST(PARAM1); | |
1772 | *p = ST0 - *p; | |
1773 | } | |
1774 | ||
1775 | void OPPROTO op_fdiv_STN_ST0(void) | |
1776 | { | |
1777 | ST(PARAM1) /= ST0; | |
1778 | } | |
1779 | ||
1780 | void OPPROTO op_fdivr_STN_ST0(void) | |
1781 | { | |
1782 | CPU86_LDouble *p; | |
1783 | p = &ST(PARAM1); | |
1784 | *p = ST0 / *p; | |
1785 | } | |
1786 | ||
1787 | /* misc FPU operations */ | |
1788 | void OPPROTO op_fchs_ST0(void) | |
1789 | { | |
1790 | ST0 = -ST0; | |
1791 | } | |
1792 | ||
1793 | void OPPROTO op_fabs_ST0(void) | |
1794 | { | |
1795 | ST0 = fabs(ST0); | |
1796 | } | |
1797 | ||
77f8dd5a FB |
1798 | void OPPROTO op_fxam_ST0(void) |
1799 | { | |
1800 | helper_fxam_ST0(); | |
927f621e FB |
1801 | } |
1802 | ||
1803 | void OPPROTO op_fld1_ST0(void) | |
1804 | { | |
87f4827e | 1805 | ST0 = f15rk[1]; |
927f621e FB |
1806 | } |
1807 | ||
77f8dd5a | 1808 | void OPPROTO op_fldl2t_ST0(void) |
927f621e | 1809 | { |
87f4827e | 1810 | ST0 = f15rk[6]; |
927f621e FB |
1811 | } |
1812 | ||
77f8dd5a | 1813 | void OPPROTO op_fldl2e_ST0(void) |
927f621e | 1814 | { |
87f4827e | 1815 | ST0 = f15rk[5]; |
927f621e FB |
1816 | } |
1817 | ||
1818 | void OPPROTO op_fldpi_ST0(void) | |
1819 | { | |
87f4827e | 1820 | ST0 = f15rk[2]; |
927f621e FB |
1821 | } |
1822 | ||
1823 | void OPPROTO op_fldlg2_ST0(void) | |
1824 | { | |
87f4827e | 1825 | ST0 = f15rk[3]; |
927f621e FB |
1826 | } |
1827 | ||
1828 | void OPPROTO op_fldln2_ST0(void) | |
1829 | { | |
87f4827e | 1830 | ST0 = f15rk[4]; |
927f621e FB |
1831 | } |
1832 | ||
1833 | void OPPROTO op_fldz_ST0(void) | |
1834 | { | |
87f4827e | 1835 | ST0 = f15rk[0]; |
927f621e FB |
1836 | } |
1837 | ||
1838 | void OPPROTO op_fldz_FT0(void) | |
1839 | { | |
87f4827e | 1840 | ST0 = f15rk[0]; |
927f621e FB |
1841 | } |
1842 | ||
927f621e FB |
1843 | /* associated heplers to reduce generated code length and to simplify |
1844 | relocation (FP constants are usually stored in .rodata section) */ | |
1845 | ||
1846 | void OPPROTO op_f2xm1(void) | |
1847 | { | |
1848 | helper_f2xm1(); | |
1849 | } | |
1850 | ||
1851 | void OPPROTO op_fyl2x(void) | |
1852 | { | |
1853 | helper_fyl2x(); | |
1854 | } | |
1855 | ||
1856 | void OPPROTO op_fptan(void) | |
1857 | { | |
1858 | helper_fptan(); | |
1859 | } | |
1860 | ||
1861 | void OPPROTO op_fpatan(void) | |
1862 | { | |
1863 | helper_fpatan(); | |
1864 | } | |
1865 | ||
1866 | void OPPROTO op_fxtract(void) | |
1867 | { | |
1868 | helper_fxtract(); | |
1869 | } | |
1870 | ||
1871 | void OPPROTO op_fprem1(void) | |
1872 | { | |
1873 | helper_fprem1(); | |
1874 | } | |
1875 | ||
1876 | ||
1877 | void OPPROTO op_fprem(void) | |
1878 | { | |
1879 | helper_fprem(); | |
1880 | } | |
1881 | ||
1882 | void OPPROTO op_fyl2xp1(void) | |
1883 | { | |
1884 | helper_fyl2xp1(); | |
1885 | } | |
1886 | ||
1887 | void OPPROTO op_fsqrt(void) | |
1888 | { | |
1889 | helper_fsqrt(); | |
1890 | } | |
1891 | ||
1892 | void OPPROTO op_fsincos(void) | |
1893 | { | |
1894 | helper_fsincos(); | |
1895 | } | |
1896 | ||
1897 | void OPPROTO op_frndint(void) | |
1898 | { | |
1899 | helper_frndint(); | |
1900 | } | |
1901 | ||
1902 | void OPPROTO op_fscale(void) | |
1903 | { | |
1904 | helper_fscale(); | |
1905 | } | |
1906 | ||
1907 | void OPPROTO op_fsin(void) | |
1908 | { | |
1909 | helper_fsin(); | |
1910 | } | |
1911 | ||
1912 | void OPPROTO op_fcos(void) | |
1913 | { | |
1914 | helper_fcos(); | |
1915 | } | |
1916 | ||
4b74fe1f FB |
1917 | void OPPROTO op_fnstsw_A0(void) |
1918 | { | |
1919 | int fpus; | |
1920 | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; | |
1921 | stw((void *)A0, fpus); | |
1922 | } | |
1923 | ||
77f8dd5a FB |
1924 | void OPPROTO op_fnstsw_EAX(void) |
1925 | { | |
1926 | int fpus; | |
1927 | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; | |
1928 | EAX = (EAX & 0xffff0000) | fpus; | |
1929 | } | |
1930 | ||
4b74fe1f FB |
1931 | void OPPROTO op_fnstcw_A0(void) |
1932 | { | |
1933 | stw((void *)A0, env->fpuc); | |
1934 | } | |
1935 | ||
1936 | void OPPROTO op_fldcw_A0(void) | |
1937 | { | |
1938 | int rnd_type; | |
1939 | env->fpuc = lduw((void *)A0); | |
1940 | /* set rounding mode */ | |
1941 | switch(env->fpuc & RC_MASK) { | |
1942 | default: | |
1943 | case RC_NEAR: | |
1944 | rnd_type = FE_TONEAREST; | |
1945 | break; | |
1946 | case RC_DOWN: | |
1947 | rnd_type = FE_DOWNWARD; | |
1948 | break; | |
1949 | case RC_UP: | |
1950 | rnd_type = FE_UPWARD; | |
1951 | break; | |
1952 | case RC_CHOP: | |
1953 | rnd_type = FE_TOWARDZERO; | |
1954 | break; | |
1955 | } | |
1956 | fesetround(rnd_type); | |
1957 | } | |
1958 | ||
1a9353d2 FB |
1959 | void OPPROTO op_fclex(void) |
1960 | { | |
1961 | env->fpus &= 0x7f00; | |
1962 | } | |
1963 | ||
1964 | void OPPROTO op_fninit(void) | |
1965 | { | |
1966 | env->fpus = 0; | |
1967 | env->fpstt = 0; | |
1968 | env->fpuc = 0x37f; | |
1969 | env->fptags[0] = 1; | |
1970 | env->fptags[1] = 1; | |
1971 | env->fptags[2] = 1; | |
1972 | env->fptags[3] = 1; | |
1973 | env->fptags[4] = 1; | |
1974 | env->fptags[5] = 1; | |
1975 | env->fptags[6] = 1; | |
1976 | env->fptags[7] = 1; | |
1977 | } | |
1b6b029e | 1978 | |
d0a1ffc9 FB |
1979 | void OPPROTO op_fnstenv_A0(void) |
1980 | { | |
1981 | helper_fstenv((uint8_t *)A0, PARAM1); | |
1982 | } | |
1983 | ||
1984 | void OPPROTO op_fldenv_A0(void) | |
1985 | { | |
1986 | helper_fldenv((uint8_t *)A0, PARAM1); | |
1987 | } | |
1988 | ||
1989 | void OPPROTO op_fnsave_A0(void) | |
1990 | { | |
1991 | helper_fsave((uint8_t *)A0, PARAM1); | |
1992 | } | |
1993 | ||
1994 | void OPPROTO op_frstor_A0(void) | |
1995 | { | |
1996 | helper_frstor((uint8_t *)A0, PARAM1); | |
1997 | } | |
1998 | ||
1b6b029e FB |
1999 | /* threading support */ |
2000 | void OPPROTO op_lock(void) | |
2001 | { | |
2002 | cpu_lock(); | |
2003 | } | |
2004 | ||
2005 | void OPPROTO op_unlock(void) | |
2006 | { | |
2007 | cpu_unlock(); | |
2008 | } | |
3ec9c4fc | 2009 |