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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 | ||
3acace13 | 460 | #if 0 |
f631ef9b | 461 | /* vm86plus instructions */ |
f631ef9b FB |
462 | void OPPROTO op_cli_vm(void) |
463 | { | |
464 | env->eflags &= ~VIF_MASK; | |
465 | } | |
466 | ||
467 | void OPPROTO op_sti_vm(void) | |
468 | { | |
469 | env->eflags |= VIF_MASK; | |
470 | if (env->eflags & VIP_MASK) { | |
471 | EIP = PARAM1; | |
472 | raise_exception(EXCP0D_GPF); | |
473 | } | |
474 | FORCE_RET(); | |
475 | } | |
3acace13 | 476 | #endif |
f631ef9b | 477 | |
a4a0ffdb FB |
478 | void OPPROTO op_boundw(void) |
479 | { | |
480 | int low, high, v; | |
481 | low = ldsw((uint8_t *)A0); | |
482 | high = ldsw((uint8_t *)A0 + 2); | |
483 | v = (int16_t)T0; | |
f4beb510 FB |
484 | if (v < low || v > high) { |
485 | EIP = PARAM1; | |
a4a0ffdb | 486 | raise_exception(EXCP05_BOUND); |
f4beb510 | 487 | } |
a4a0ffdb FB |
488 | FORCE_RET(); |
489 | } | |
490 | ||
491 | void OPPROTO op_boundl(void) | |
492 | { | |
493 | int low, high, v; | |
494 | low = ldl((uint8_t *)A0); | |
495 | high = ldl((uint8_t *)A0 + 4); | |
496 | v = T0; | |
f4beb510 FB |
497 | if (v < low || v > high) { |
498 | EIP = PARAM1; | |
a4a0ffdb | 499 | raise_exception(EXCP05_BOUND); |
f4beb510 | 500 | } |
a4a0ffdb FB |
501 | FORCE_RET(); |
502 | } | |
503 | ||
504 | void OPPROTO op_cmpxchg8b(void) | |
505 | { | |
87f4827e | 506 | helper_cmpxchg8b(); |
0ecfa993 FB |
507 | } |
508 | ||
d4e8164f FB |
509 | void OPPROTO op_jmp_tb_next(void) |
510 | { | |
25731098 | 511 | JUMP_TB(op_jmp_tb_next, PARAM1, 0, PARAM2); |
d4e8164f FB |
512 | } |
513 | ||
514 | void OPPROTO op_movl_T0_0(void) | |
515 | { | |
516 | T0 = 0; | |
517 | } | |
518 | ||
9621339d FB |
519 | void OPPROTO op_exit_tb(void) |
520 | { | |
521 | EXIT_TB(); | |
522 | } | |
523 | ||
d4e8164f | 524 | /* multiple size ops */ |
7bfdb6d1 FB |
525 | |
526 | #define ldul ldl | |
527 | ||
7bfdb6d1 | 528 | #define SHIFT 0 |
367e86e8 | 529 | #include "ops_template.h" |
7bfdb6d1 FB |
530 | #undef SHIFT |
531 | ||
7bfdb6d1 | 532 | #define SHIFT 1 |
367e86e8 | 533 | #include "ops_template.h" |
7bfdb6d1 FB |
534 | #undef SHIFT |
535 | ||
7bfdb6d1 | 536 | #define SHIFT 2 |
367e86e8 | 537 | #include "ops_template.h" |
7bfdb6d1 FB |
538 | #undef SHIFT |
539 | ||
540 | /* sign extend */ | |
541 | ||
542 | void OPPROTO op_movsbl_T0_T0(void) | |
543 | { | |
544 | T0 = (int8_t)T0; | |
545 | } | |
546 | ||
547 | void OPPROTO op_movzbl_T0_T0(void) | |
548 | { | |
549 | T0 = (uint8_t)T0; | |
550 | } | |
551 | ||
552 | void OPPROTO op_movswl_T0_T0(void) | |
553 | { | |
554 | T0 = (int16_t)T0; | |
555 | } | |
556 | ||
557 | void OPPROTO op_movzwl_T0_T0(void) | |
558 | { | |
559 | T0 = (uint16_t)T0; | |
560 | } | |
561 | ||
562 | void OPPROTO op_movswl_EAX_AX(void) | |
563 | { | |
564 | EAX = (int16_t)EAX; | |
565 | } | |
566 | ||
567 | void OPPROTO op_movsbw_AX_AL(void) | |
568 | { | |
569 | EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff); | |
570 | } | |
571 | ||
572 | void OPPROTO op_movslq_EDX_EAX(void) | |
573 | { | |
574 | EDX = (int32_t)EAX >> 31; | |
575 | } | |
576 | ||
577 | void OPPROTO op_movswl_DX_AX(void) | |
578 | { | |
579 | EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff); | |
580 | } | |
581 | ||
33417e70 FB |
582 | /* string ops helpers */ |
583 | ||
584 | void OPPROTO op_addl_ESI_T0(void) | |
585 | { | |
586 | ESI += T0; | |
587 | } | |
588 | ||
589 | void OPPROTO op_addw_ESI_T0(void) | |
590 | { | |
591 | ESI = (ESI & ~0xffff) | ((ESI + T0) & 0xffff); | |
592 | } | |
593 | ||
594 | void OPPROTO op_addl_EDI_T0(void) | |
595 | { | |
596 | EDI += T0; | |
597 | } | |
598 | ||
599 | void OPPROTO op_addw_EDI_T0(void) | |
600 | { | |
601 | EDI = (EDI & ~0xffff) | ((EDI + T0) & 0xffff); | |
602 | } | |
603 | ||
604 | void OPPROTO op_decl_ECX(void) | |
605 | { | |
606 | ECX--; | |
607 | } | |
608 | ||
609 | void OPPROTO op_decw_ECX(void) | |
610 | { | |
611 | ECX = (ECX & ~0xffff) | ((ECX - 1) & 0xffff); | |
612 | } | |
613 | ||
7bfdb6d1 | 614 | /* push/pop */ |
7bfdb6d1 FB |
615 | |
616 | void op_pushl_T0(void) | |
617 | { | |
618 | uint32_t offset; | |
619 | offset = ESP - 4; | |
620 | stl((void *)offset, T0); | |
621 | /* modify ESP after to handle exceptions correctly */ | |
622 | ESP = offset; | |
623 | } | |
624 | ||
dab2ed99 FB |
625 | void op_pushw_T0(void) |
626 | { | |
627 | uint32_t offset; | |
628 | offset = ESP - 2; | |
629 | stw((void *)offset, T0); | |
630 | /* modify ESP after to handle exceptions correctly */ | |
631 | ESP = offset; | |
632 | } | |
633 | ||
634 | void op_pushl_ss32_T0(void) | |
7bfdb6d1 FB |
635 | { |
636 | uint32_t offset; | |
637 | offset = ESP - 4; | |
d8bc1fd0 | 638 | stl(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
639 | /* modify ESP after to handle exceptions correctly */ |
640 | ESP = offset; | |
641 | } | |
642 | ||
643 | void op_pushw_ss32_T0(void) | |
644 | { | |
645 | uint32_t offset; | |
646 | offset = ESP - 2; | |
d8bc1fd0 | 647 | stw(env->segs[R_SS].base + offset, T0); |
7bfdb6d1 FB |
648 | /* modify ESP after to handle exceptions correctly */ |
649 | ESP = offset; | |
650 | } | |
651 | ||
dab2ed99 FB |
652 | void op_pushl_ss16_T0(void) |
653 | { | |
654 | uint32_t offset; | |
655 | offset = (ESP - 4) & 0xffff; | |
d8bc1fd0 | 656 | stl(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
657 | /* modify ESP after to handle exceptions correctly */ |
658 | ESP = (ESP & ~0xffff) | offset; | |
659 | } | |
660 | ||
661 | void op_pushw_ss16_T0(void) | |
662 | { | |
663 | uint32_t offset; | |
664 | offset = (ESP - 2) & 0xffff; | |
d8bc1fd0 | 665 | stw(env->segs[R_SS].base + offset, T0); |
dab2ed99 FB |
666 | /* modify ESP after to handle exceptions correctly */ |
667 | ESP = (ESP & ~0xffff) | offset; | |
668 | } | |
669 | ||
670 | /* NOTE: ESP update is done after */ | |
7bfdb6d1 FB |
671 | void op_popl_T0(void) |
672 | { | |
673 | T0 = ldl((void *)ESP); | |
dab2ed99 FB |
674 | } |
675 | ||
676 | void op_popw_T0(void) | |
677 | { | |
678 | T0 = lduw((void *)ESP); | |
679 | } | |
680 | ||
681 | void op_popl_ss32_T0(void) | |
682 | { | |
d8bc1fd0 | 683 | T0 = ldl(env->segs[R_SS].base + ESP); |
dab2ed99 FB |
684 | } |
685 | ||
686 | void op_popw_ss32_T0(void) | |
687 | { | |
d8bc1fd0 | 688 | T0 = lduw(env->segs[R_SS].base + ESP); |
dab2ed99 FB |
689 | } |
690 | ||
691 | void op_popl_ss16_T0(void) | |
692 | { | |
d8bc1fd0 | 693 | T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff)); |
dab2ed99 FB |
694 | } |
695 | ||
696 | void op_popw_ss16_T0(void) | |
697 | { | |
d8bc1fd0 | 698 | T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff)); |
dab2ed99 FB |
699 | } |
700 | ||
701 | void op_addl_ESP_4(void) | |
702 | { | |
7bfdb6d1 FB |
703 | ESP += 4; |
704 | } | |
705 | ||
dab2ed99 FB |
706 | void op_addl_ESP_2(void) |
707 | { | |
708 | ESP += 2; | |
709 | } | |
710 | ||
711 | void op_addw_ESP_4(void) | |
712 | { | |
713 | ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff); | |
714 | } | |
715 | ||
716 | void op_addw_ESP_2(void) | |
717 | { | |
718 | ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff); | |
719 | } | |
720 | ||
7bfdb6d1 FB |
721 | void op_addl_ESP_im(void) |
722 | { | |
723 | ESP += PARAM1; | |
724 | } | |
367e86e8 | 725 | |
dab2ed99 FB |
726 | void op_addw_ESP_im(void) |
727 | { | |
728 | ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff); | |
27362c82 FB |
729 | } |
730 | ||
a4a0ffdb | 731 | void OPPROTO op_rdtsc(void) |
27362c82 | 732 | { |
87f4827e | 733 | helper_rdtsc(); |
27362c82 FB |
734 | } |
735 | ||
a4a0ffdb FB |
736 | void OPPROTO op_cpuid(void) |
737 | { | |
738 | helper_cpuid(); | |
739 | } | |
740 | ||
3c1cf9fa FB |
741 | void OPPROTO op_rdmsr(void) |
742 | { | |
743 | helper_rdmsr(); | |
744 | } | |
745 | ||
746 | void OPPROTO op_wrmsr(void) | |
747 | { | |
748 | helper_wrmsr(); | |
749 | } | |
750 | ||
27362c82 FB |
751 | /* bcd */ |
752 | ||
753 | /* XXX: exception */ | |
754 | void OPPROTO op_aam(void) | |
755 | { | |
756 | int base = PARAM1; | |
757 | int al, ah; | |
758 | al = EAX & 0xff; | |
759 | ah = al / base; | |
760 | al = al % base; | |
761 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
762 | CC_DST = al; | |
763 | } | |
764 | ||
765 | void OPPROTO op_aad(void) | |
766 | { | |
767 | int base = PARAM1; | |
768 | int al, ah; | |
769 | al = EAX & 0xff; | |
770 | ah = (EAX >> 8) & 0xff; | |
771 | al = ((ah * base) + al) & 0xff; | |
772 | EAX = (EAX & ~0xffff) | al; | |
773 | CC_DST = al; | |
774 | } | |
775 | ||
776 | void OPPROTO op_aaa(void) | |
777 | { | |
778 | int icarry; | |
779 | int al, ah, af; | |
780 | int eflags; | |
781 | ||
782 | eflags = cc_table[CC_OP].compute_all(); | |
783 | af = eflags & CC_A; | |
784 | al = EAX & 0xff; | |
785 | ah = (EAX >> 8) & 0xff; | |
786 | ||
787 | icarry = (al > 0xf9); | |
788 | if (((al & 0x0f) > 9 ) || af) { | |
789 | al = (al + 6) & 0x0f; | |
790 | ah = (ah + 1 + icarry) & 0xff; | |
791 | eflags |= CC_C | CC_A; | |
792 | } else { | |
793 | eflags &= ~(CC_C | CC_A); | |
794 | al &= 0x0f; | |
795 | } | |
796 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
797 | CC_SRC = eflags; | |
798 | } | |
799 | ||
800 | void OPPROTO op_aas(void) | |
801 | { | |
802 | int icarry; | |
803 | int al, ah, af; | |
804 | int eflags; | |
805 | ||
806 | eflags = cc_table[CC_OP].compute_all(); | |
807 | af = eflags & CC_A; | |
808 | al = EAX & 0xff; | |
809 | ah = (EAX >> 8) & 0xff; | |
810 | ||
811 | icarry = (al < 6); | |
812 | if (((al & 0x0f) > 9 ) || af) { | |
813 | al = (al - 6) & 0x0f; | |
814 | ah = (ah - 1 - icarry) & 0xff; | |
815 | eflags |= CC_C | CC_A; | |
816 | } else { | |
817 | eflags &= ~(CC_C | CC_A); | |
818 | al &= 0x0f; | |
819 | } | |
820 | EAX = (EAX & ~0xffff) | al | (ah << 8); | |
821 | CC_SRC = eflags; | |
822 | } | |
823 | ||
824 | void OPPROTO op_daa(void) | |
825 | { | |
826 | int al, af, cf; | |
827 | int eflags; | |
828 | ||
829 | eflags = cc_table[CC_OP].compute_all(); | |
830 | cf = eflags & CC_C; | |
831 | af = eflags & CC_A; | |
832 | al = EAX & 0xff; | |
833 | ||
834 | eflags = 0; | |
835 | if (((al & 0x0f) > 9 ) || af) { | |
836 | al = (al + 6) & 0xff; | |
837 | eflags |= CC_A; | |
838 | } | |
839 | if ((al > 0x9f) || cf) { | |
840 | al = (al + 0x60) & 0xff; | |
841 | eflags |= CC_C; | |
842 | } | |
843 | EAX = (EAX & ~0xff) | al; | |
844 | /* well, speed is not an issue here, so we compute the flags by hand */ | |
845 | eflags |= (al == 0) << 6; /* zf */ | |
846 | eflags |= parity_table[al]; /* pf */ | |
847 | eflags |= (al & 0x80); /* sf */ | |
848 | CC_SRC = eflags; | |
849 | } | |
850 | ||
851 | void OPPROTO op_das(void) | |
852 | { | |
853 | int al, al1, af, cf; | |
854 | int eflags; | |
855 | ||
856 | eflags = cc_table[CC_OP].compute_all(); | |
857 | cf = eflags & CC_C; | |
858 | af = eflags & CC_A; | |
859 | al = EAX & 0xff; | |
860 | ||
861 | eflags = 0; | |
862 | al1 = al; | |
863 | if (((al & 0x0f) > 9 ) || af) { | |
864 | eflags |= CC_A; | |
865 | if (al < 6 || cf) | |
866 | eflags |= CC_C; | |
867 | al = (al - 6) & 0xff; | |
868 | } | |
869 | if ((al1 > 0x99) || cf) { | |
870 | al = (al - 0x60) & 0xff; | |
871 | eflags |= CC_C; | |
872 | } | |
873 | EAX = (EAX & ~0xff) | al; | |
874 | /* well, speed is not an issue here, so we compute the flags by hand */ | |
875 | eflags |= (al == 0) << 6; /* zf */ | |
876 | eflags |= parity_table[al]; /* pf */ | |
877 | eflags |= (al & 0x80); /* sf */ | |
878 | CC_SRC = eflags; | |
879 | } | |
880 | ||
6dbad63e FB |
881 | /* segment handling */ |
882 | ||
6dbad63e FB |
883 | void OPPROTO op_movl_seg_T0(void) |
884 | { | |
f4beb510 FB |
885 | load_seg(PARAM1, T0 & 0xffff, PARAM2); |
886 | } | |
887 | ||
888 | /* faster VM86 version */ | |
889 | void OPPROTO op_movl_seg_T0_vm(void) | |
890 | { | |
891 | int selector; | |
d8bc1fd0 | 892 | SegmentCache *sc; |
f4beb510 FB |
893 | |
894 | selector = T0 & 0xffff; | |
895 | /* env->segs[] access */ | |
d8bc1fd0 FB |
896 | sc = (SegmentCache *)((char *)env + PARAM1); |
897 | sc->selector = selector; | |
898 | sc->base = (void *)(selector << 4); | |
6dbad63e FB |
899 | } |
900 | ||
901 | void OPPROTO op_movl_T0_seg(void) | |
902 | { | |
d8bc1fd0 | 903 | T0 = env->segs[PARAM1].selector; |
6dbad63e FB |
904 | } |
905 | ||
a4a0ffdb FB |
906 | void OPPROTO op_movl_A0_seg(void) |
907 | { | |
908 | A0 = *(unsigned long *)((char *)env + PARAM1); | |
909 | } | |
910 | ||
6dbad63e FB |
911 | void OPPROTO op_addl_A0_seg(void) |
912 | { | |
913 | A0 += *(unsigned long *)((char *)env + PARAM1); | |
914 | } | |
915 | ||
2792c4f2 FB |
916 | void OPPROTO op_lsl(void) |
917 | { | |
918 | helper_lsl(); | |
919 | } | |
920 | ||
2792c4f2 FB |
921 | void OPPROTO op_lar(void) |
922 | { | |
923 | helper_lar(); | |
924 | } | |
925 | ||
d8bc1fd0 | 926 | /* T0: segment, T1:eip */ |
2c1794c4 | 927 | void OPPROTO op_ljmp_protected_T0_T1(void) |
d8bc1fd0 | 928 | { |
2c1794c4 FB |
929 | helper_ljmp_protected_T0_T1(); |
930 | } | |
931 | ||
932 | void OPPROTO op_lcall_real_T0_T1(void) | |
933 | { | |
934 | helper_lcall_real_T0_T1(PARAM1, PARAM2); | |
935 | } | |
936 | ||
937 | void OPPROTO op_lcall_protected_T0_T1(void) | |
938 | { | |
939 | helper_lcall_protected_T0_T1(PARAM1, PARAM2); | |
d8bc1fd0 FB |
940 | } |
941 | ||
8f186479 FB |
942 | void OPPROTO op_iret_real(void) |
943 | { | |
944 | helper_iret_real(PARAM1); | |
945 | } | |
946 | ||
90a9fdae FB |
947 | void OPPROTO op_iret_protected(void) |
948 | { | |
949 | helper_iret_protected(PARAM1); | |
950 | } | |
951 | ||
2c1794c4 FB |
952 | void OPPROTO op_lret_protected(void) |
953 | { | |
954 | helper_lret_protected(PARAM1, PARAM2); | |
955 | } | |
956 | ||
d8bc1fd0 FB |
957 | void OPPROTO op_lldt_T0(void) |
958 | { | |
959 | helper_lldt_T0(); | |
960 | } | |
961 | ||
962 | void OPPROTO op_ltr_T0(void) | |
963 | { | |
964 | helper_ltr_T0(); | |
965 | } | |
966 | ||
967 | /* CR registers access */ | |
968 | void OPPROTO op_movl_crN_T0(void) | |
969 | { | |
970 | helper_movl_crN_T0(PARAM1); | |
971 | } | |
972 | ||
973 | /* DR registers access */ | |
974 | void OPPROTO op_movl_drN_T0(void) | |
975 | { | |
976 | helper_movl_drN_T0(PARAM1); | |
977 | } | |
978 | ||
979 | void OPPROTO op_lmsw_T0(void) | |
980 | { | |
981 | /* only 4 lower bits of CR0 are modified */ | |
982 | T0 = (env->cr[0] & ~0xf) | (T0 & 0xf); | |
983 | helper_movl_crN_T0(0); | |
984 | } | |
985 | ||
90a9fdae FB |
986 | void OPPROTO op_invlpg_A0(void) |
987 | { | |
988 | helper_invlpg(A0); | |
989 | } | |
990 | ||
d8bc1fd0 FB |
991 | void OPPROTO op_movl_T0_env(void) |
992 | { | |
993 | T0 = *(uint32_t *)((char *)env + PARAM1); | |
994 | } | |
995 | ||
996 | void OPPROTO op_movl_env_T0(void) | |
997 | { | |
998 | *(uint32_t *)((char *)env + PARAM1) = T0; | |
999 | } | |
1000 | ||
1001 | void OPPROTO op_movl_env_T1(void) | |
1002 | { | |
1003 | *(uint32_t *)((char *)env + PARAM1) = T1; | |
1004 | } | |
1005 | ||
1006 | void OPPROTO op_clts(void) | |
1007 | { | |
1008 | env->cr[0] &= ~CR0_TS_MASK; | |
1009 | } | |
1010 | ||
367e86e8 FB |
1011 | /* flags handling */ |
1012 | ||
d4e8164f FB |
1013 | /* slow jumps cases : in order to avoid calling a function with a |
1014 | pointer (which can generate a stack frame on PowerPC), we use | |
1015 | op_setcc to set T0 and then call op_jcc. */ | |
1016 | void OPPROTO op_jcc(void) | |
367e86e8 | 1017 | { |
d4e8164f | 1018 | if (T0) |
25731098 | 1019 | JUMP_TB(op_jcc, PARAM1, 0, PARAM2); |
367e86e8 | 1020 | else |
25731098 | 1021 | JUMP_TB(op_jcc, PARAM1, 1, PARAM3); |
0ecfa993 | 1022 | FORCE_RET(); |
367e86e8 FB |
1023 | } |
1024 | ||
1025 | /* slow set cases (compute x86 flags) */ | |
1026 | void OPPROTO op_seto_T0_cc(void) | |
1027 | { | |
1028 | int eflags; | |
1029 | eflags = cc_table[CC_OP].compute_all(); | |
1030 | T0 = (eflags >> 11) & 1; | |
1031 | } | |
1032 | ||
1033 | void OPPROTO op_setb_T0_cc(void) | |
1034 | { | |
1035 | T0 = cc_table[CC_OP].compute_c(); | |
1036 | } | |
1037 | ||
1038 | void OPPROTO op_setz_T0_cc(void) | |
1039 | { | |
1040 | int eflags; | |
1041 | eflags = cc_table[CC_OP].compute_all(); | |
1042 | T0 = (eflags >> 6) & 1; | |
1043 | } | |
1044 | ||
1045 | void OPPROTO op_setbe_T0_cc(void) | |
1046 | { | |
1047 | int eflags; | |
1048 | eflags = cc_table[CC_OP].compute_all(); | |
1049 | T0 = (eflags & (CC_Z | CC_C)) != 0; | |
1050 | } | |
1051 | ||
1052 | void OPPROTO op_sets_T0_cc(void) | |
1053 | { | |
1054 | int eflags; | |
1055 | eflags = cc_table[CC_OP].compute_all(); | |
1056 | T0 = (eflags >> 7) & 1; | |
1057 | } | |
1058 | ||
1059 | void OPPROTO op_setp_T0_cc(void) | |
1060 | { | |
1061 | int eflags; | |
1062 | eflags = cc_table[CC_OP].compute_all(); | |
1063 | T0 = (eflags >> 2) & 1; | |
1064 | } | |
1065 | ||
1066 | void OPPROTO op_setl_T0_cc(void) | |
1067 | { | |
1068 | int eflags; | |
1069 | eflags = cc_table[CC_OP].compute_all(); | |
1070 | T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1; | |
1071 | } | |
1072 | ||
1073 | void OPPROTO op_setle_T0_cc(void) | |
1074 | { | |
1075 | int eflags; | |
1076 | eflags = cc_table[CC_OP].compute_all(); | |
1077 | T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0; | |
1078 | } | |
1079 | ||
1080 | void OPPROTO op_xor_T0_1(void) | |
1081 | { | |
1082 | T0 ^= 1; | |
1083 | } | |
1084 | ||
1085 | void OPPROTO op_set_cc_op(void) | |
1086 | { | |
1087 | CC_OP = PARAM1; | |
1088 | } | |
1089 | ||
90a9fdae | 1090 | #define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff) |
a4a0ffdb | 1091 | |
367e86e8 FB |
1092 | void OPPROTO op_movl_eflags_T0(void) |
1093 | { | |
a4a0ffdb FB |
1094 | int eflags; |
1095 | eflags = T0; | |
1096 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1097 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1098 | /* we also update some system flags as in user mode */ | |
90a9fdae FB |
1099 | env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | |
1100 | (eflags & FL_UPDATE_MASK32); | |
f631ef9b FB |
1101 | } |
1102 | ||
1103 | void OPPROTO op_movw_eflags_T0(void) | |
1104 | { | |
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_MASK16) | |
1111 | (eflags & FL_UPDATE_MASK16); | |
1112 | } | |
1113 | ||
1114 | void OPPROTO op_movl_eflags_T0_cpl0(void) | |
1115 | { | |
1116 | load_eflags(T0, FL_UPDATE_CPL0_MASK); | |
1117 | } | |
1118 | ||
1119 | void OPPROTO op_movw_eflags_T0_cpl0(void) | |
1120 | { | |
1121 | load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff); | |
f631ef9b FB |
1122 | } |
1123 | ||
3acace13 FB |
1124 | #if 0 |
1125 | /* vm86plus version */ | |
f631ef9b FB |
1126 | void OPPROTO op_movw_eflags_T0_vm(void) |
1127 | { | |
1128 | int eflags; | |
1129 | eflags = T0; | |
1130 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1131 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1132 | /* we also update some system flags as in user mode */ | |
1133 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) | | |
1134 | (eflags & FL_UPDATE_MASK16); | |
1135 | if (eflags & IF_MASK) { | |
1136 | env->eflags |= VIF_MASK; | |
1137 | if (env->eflags & VIP_MASK) { | |
1138 | EIP = PARAM1; | |
1139 | raise_exception(EXCP0D_GPF); | |
1140 | } | |
1141 | } | |
1142 | FORCE_RET(); | |
1143 | } | |
1144 | ||
1145 | void OPPROTO op_movl_eflags_T0_vm(void) | |
1146 | { | |
1147 | int eflags; | |
1148 | eflags = T0; | |
1149 | CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); | |
1150 | DF = 1 - (2 * ((eflags >> 10) & 1)); | |
1151 | /* we also update some system flags as in user mode */ | |
1152 | env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) | | |
1153 | (eflags & FL_UPDATE_MASK32); | |
1154 | if (eflags & IF_MASK) { | |
1155 | env->eflags |= VIF_MASK; | |
1156 | if (env->eflags & VIP_MASK) { | |
1157 | EIP = PARAM1; | |
1158 | raise_exception(EXCP0D_GPF); | |
1159 | } | |
1160 | } | |
1161 | FORCE_RET(); | |
367e86e8 | 1162 | } |
3acace13 | 1163 | #endif |
367e86e8 FB |
1164 | |
1165 | /* XXX: compute only O flag */ | |
1166 | void OPPROTO op_movb_eflags_T0(void) | |
1167 | { | |
1168 | int of; | |
1169 | of = cc_table[CC_OP].compute_all() & CC_O; | |
a4a0ffdb | 1170 | CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of; |
367e86e8 FB |
1171 | } |
1172 | ||
1173 | void OPPROTO op_movl_T0_eflags(void) | |
1174 | { | |
a4a0ffdb FB |
1175 | int eflags; |
1176 | eflags = cc_table[CC_OP].compute_all(); | |
1177 | eflags |= (DF & DF_MASK); | |
1178 | eflags |= env->eflags & ~(VM_MASK | RF_MASK); | |
1179 | T0 = eflags; | |
367e86e8 FB |
1180 | } |
1181 | ||
3acace13 FB |
1182 | /* vm86plus version */ |
1183 | #if 0 | |
f631ef9b FB |
1184 | void OPPROTO op_movl_T0_eflags_vm(void) |
1185 | { | |
1186 | int eflags; | |
1187 | eflags = cc_table[CC_OP].compute_all(); | |
1188 | eflags |= (DF & DF_MASK); | |
1189 | eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK); | |
1190 | if (env->eflags & VIF_MASK) | |
1191 | eflags |= IF_MASK; | |
1192 | T0 = eflags; | |
1193 | } | |
3acace13 | 1194 | #endif |
f631ef9b | 1195 | |
367e86e8 FB |
1196 | void OPPROTO op_cld(void) |
1197 | { | |
1198 | DF = 1; | |
1199 | } | |
1200 | ||
1201 | void OPPROTO op_std(void) | |
1202 | { | |
1203 | DF = -1; | |
1204 | } | |
1205 | ||
1206 | void OPPROTO op_clc(void) | |
1207 | { | |
1208 | int eflags; | |
1209 | eflags = cc_table[CC_OP].compute_all(); | |
1210 | eflags &= ~CC_C; | |
1211 | CC_SRC = eflags; | |
1212 | } | |
1213 | ||
1214 | void OPPROTO op_stc(void) | |
1215 | { | |
1216 | int eflags; | |
1217 | eflags = cc_table[CC_OP].compute_all(); | |
1218 | eflags |= CC_C; | |
1219 | CC_SRC = eflags; | |
1220 | } | |
1221 | ||
1222 | void OPPROTO op_cmc(void) | |
1223 | { | |
1224 | int eflags; | |
1225 | eflags = cc_table[CC_OP].compute_all(); | |
1226 | eflags ^= CC_C; | |
1227 | CC_SRC = eflags; | |
1228 | } | |
1229 | ||
27362c82 FB |
1230 | void OPPROTO op_salc(void) |
1231 | { | |
1232 | int cf; | |
1233 | cf = cc_table[CC_OP].compute_c(); | |
1234 | EAX = (EAX & ~0xff) | ((-cf) & 0xff); | |
1235 | } | |
1236 | ||
367e86e8 FB |
1237 | static int compute_all_eflags(void) |
1238 | { | |
1239 | return CC_SRC; | |
1240 | } | |
1241 | ||
1242 | static int compute_c_eflags(void) | |
1243 | { | |
1244 | return CC_SRC & CC_C; | |
1245 | } | |
1246 | ||
1247 | static int compute_c_mul(void) | |
1248 | { | |
1249 | int cf; | |
1250 | cf = (CC_SRC != 0); | |
1251 | return cf; | |
1252 | } | |
1253 | ||
1254 | static int compute_all_mul(void) | |
1255 | { | |
1256 | int cf, pf, af, zf, sf, of; | |
1257 | cf = (CC_SRC != 0); | |
1258 | pf = 0; /* undefined */ | |
1259 | af = 0; /* undefined */ | |
1260 | zf = 0; /* undefined */ | |
1261 | sf = 0; /* undefined */ | |
1262 | of = cf << 11; | |
1263 | return cf | pf | af | zf | sf | of; | |
1264 | } | |
1265 | ||
1266 | CCTable cc_table[CC_OP_NB] = { | |
1267 | [CC_OP_DYNAMIC] = { /* should never happen */ }, | |
1268 | ||
1269 | [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags }, | |
1270 | ||
1271 | [CC_OP_MUL] = { compute_all_mul, compute_c_mul }, | |
1272 | ||
1273 | [CC_OP_ADDB] = { compute_all_addb, compute_c_addb }, | |
1274 | [CC_OP_ADDW] = { compute_all_addw, compute_c_addw }, | |
1275 | [CC_OP_ADDL] = { compute_all_addl, compute_c_addl }, | |
1276 | ||
4b74fe1f FB |
1277 | [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb }, |
1278 | [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw }, | |
1279 | [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl }, | |
1280 | ||
367e86e8 FB |
1281 | [CC_OP_SUBB] = { compute_all_subb, compute_c_subb }, |
1282 | [CC_OP_SUBW] = { compute_all_subw, compute_c_subw }, | |
1283 | [CC_OP_SUBL] = { compute_all_subl, compute_c_subl }, | |
1284 | ||
4b74fe1f FB |
1285 | [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb }, |
1286 | [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw }, | |
1287 | [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl }, | |
1288 | ||
367e86e8 FB |
1289 | [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb }, |
1290 | [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw }, | |
1291 | [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl }, | |
1292 | ||
4b74fe1f FB |
1293 | [CC_OP_INCB] = { compute_all_incb, compute_c_incl }, |
1294 | [CC_OP_INCW] = { compute_all_incw, compute_c_incl }, | |
367e86e8 FB |
1295 | [CC_OP_INCL] = { compute_all_incl, compute_c_incl }, |
1296 | ||
4b74fe1f FB |
1297 | [CC_OP_DECB] = { compute_all_decb, compute_c_incl }, |
1298 | [CC_OP_DECW] = { compute_all_decw, compute_c_incl }, | |
367e86e8 FB |
1299 | [CC_OP_DECL] = { compute_all_decl, compute_c_incl }, |
1300 | ||
2792c4f2 FB |
1301 | [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb }, |
1302 | [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw }, | |
367e86e8 | 1303 | [CC_OP_SHLL] = { compute_all_shll, compute_c_shll }, |
4b74fe1f | 1304 | |
2792c4f2 FB |
1305 | [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl }, |
1306 | [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl }, | |
1307 | [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl }, | |
367e86e8 | 1308 | }; |
927f621e | 1309 | |
f631ef9b FB |
1310 | /* floating point support. Some of the code for complicated x87 |
1311 | functions comes from the LGPL'ed x86 emulator found in the Willows | |
1312 | TWIN windows emulator. */ | |
927f621e | 1313 | |
51fe6890 FB |
1314 | #if defined(__powerpc__) |
1315 | extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble); | |
1316 | ||
1317 | /* correct (but slow) PowerPC rint() (glibc version is incorrect) */ | |
1318 | double qemu_rint(double x) | |
1319 | { | |
1320 | double y = 4503599627370496.0; | |
1321 | if (fabs(x) >= y) | |
1322 | return x; | |
1323 | if (x < 0) | |
1324 | y = -y; | |
1325 | y = (x + y) - y; | |
1326 | if (y == 0.0) | |
1327 | y = copysign(y, x); | |
1328 | return y; | |
1329 | } | |
1330 | ||
1331 | #define rint qemu_rint | |
1332 | #endif | |
1333 | ||
927f621e FB |
1334 | /* fp load FT0 */ |
1335 | ||
1336 | void OPPROTO op_flds_FT0_A0(void) | |
1337 | { | |
d014c98c FB |
1338 | #ifdef USE_FP_CONVERT |
1339 | FP_CONVERT.i32 = ldl((void *)A0); | |
1340 | FT0 = FP_CONVERT.f; | |
1341 | #else | |
927f621e | 1342 | FT0 = ldfl((void *)A0); |
d014c98c | 1343 | #endif |
927f621e FB |
1344 | } |
1345 | ||
1346 | void OPPROTO op_fldl_FT0_A0(void) | |
1347 | { | |
d014c98c FB |
1348 | #ifdef USE_FP_CONVERT |
1349 | FP_CONVERT.i64 = ldq((void *)A0); | |
1350 | FT0 = FP_CONVERT.d; | |
1351 | #else | |
927f621e | 1352 | FT0 = ldfq((void *)A0); |
d014c98c | 1353 | #endif |
927f621e FB |
1354 | } |
1355 | ||
04369ff2 FB |
1356 | /* helpers are needed to avoid static constant reference. XXX: find a better way */ |
1357 | #ifdef USE_INT_TO_FLOAT_HELPERS | |
1358 | ||
1359 | void helper_fild_FT0_A0(void) | |
1360 | { | |
1361 | FT0 = (CPU86_LDouble)ldsw((void *)A0); | |
1362 | } | |
1363 | ||
1364 | void helper_fildl_FT0_A0(void) | |
1365 | { | |
1366 | FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); | |
1367 | } | |
1368 | ||
1369 | void helper_fildll_FT0_A0(void) | |
1370 | { | |
1371 | FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); | |
1372 | } | |
1373 | ||
1374 | void OPPROTO op_fild_FT0_A0(void) | |
1375 | { | |
1376 | helper_fild_FT0_A0(); | |
1377 | } | |
1378 | ||
1379 | void OPPROTO op_fildl_FT0_A0(void) | |
1380 | { | |
1381 | helper_fildl_FT0_A0(); | |
1382 | } | |
1383 | ||
1384 | void OPPROTO op_fildll_FT0_A0(void) | |
1385 | { | |
1386 | helper_fildll_FT0_A0(); | |
1387 | } | |
1388 | ||
1389 | #else | |
1390 | ||
927f621e FB |
1391 | void OPPROTO op_fild_FT0_A0(void) |
1392 | { | |
d014c98c FB |
1393 | #ifdef USE_FP_CONVERT |
1394 | FP_CONVERT.i32 = ldsw((void *)A0); | |
1395 | FT0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1396 | #else | |
927f621e | 1397 | FT0 = (CPU86_LDouble)ldsw((void *)A0); |
d014c98c | 1398 | #endif |
927f621e FB |
1399 | } |
1400 | ||
1401 | void OPPROTO op_fildl_FT0_A0(void) | |
1402 | { | |
d014c98c FB |
1403 | #ifdef USE_FP_CONVERT |
1404 | FP_CONVERT.i32 = (int32_t) ldl((void *)A0); | |
1405 | FT0 = (CPU86_LDouble)FP_CONVERT.i32; | |
1406 | #else | |
927f621e | 1407 | FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0)); |
d014c98c | 1408 | #endif |
927f621e FB |
1409 | } |
1410 | ||
1411 | void OPPROTO op_fildll_FT0_A0(void) | |
1412 | { | |
d014c98c FB |
1413 | #ifdef USE_FP_CONVERT |
1414 | FP_CONVERT.i64 = (int64_t) ldq((void *)A0); | |
1415 | FT0 = (CPU86_LDouble)FP_CONVERT.i64; | |
1416 | #else | |
927f621e | 1417 | FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0)); |
d014c98c | 1418 | #endif |
927f621e | 1419 | } |
04369ff2 | 1420 | #endif |
927f621e FB |
1421 | |
1422 | /* fp load ST0 */ | |
1423 | ||
1424 | void OPPROTO op_flds_ST0_A0(void) | |
1425 | { | |
c39d5b78 FB |
1426 | int new_fpstt; |
1427 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1428 | #ifdef USE_FP_CONVERT |
1429 | FP_CONVERT.i32 = ldl((void *)A0); | |
c39d5b78 | 1430 | env->fpregs[new_fpstt] = FP_CONVERT.f; |
d014c98c | 1431 | #else |
c39d5b78 | 1432 | env->fpregs[new_fpstt] = ldfl((void *)A0); |
d014c98c | 1433 | #endif |
c39d5b78 FB |
1434 | env->fpstt = new_fpstt; |
1435 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1436 | } |
1437 | ||
1438 | void OPPROTO op_fldl_ST0_A0(void) | |
1439 | { | |
c39d5b78 FB |
1440 | int new_fpstt; |
1441 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1442 | #ifdef USE_FP_CONVERT |
1443 | FP_CONVERT.i64 = ldq((void *)A0); | |
c39d5b78 | 1444 | env->fpregs[new_fpstt] = FP_CONVERT.d; |
d014c98c | 1445 | #else |
c39d5b78 | 1446 | env->fpregs[new_fpstt] = ldfq((void *)A0); |
d014c98c | 1447 | #endif |
c39d5b78 FB |
1448 | env->fpstt = new_fpstt; |
1449 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1450 | } |
1451 | ||
77f8dd5a FB |
1452 | #ifdef USE_X86LDOUBLE |
1453 | void OPPROTO op_fldt_ST0_A0(void) | |
1454 | { | |
c39d5b78 FB |
1455 | int new_fpstt; |
1456 | new_fpstt = (env->fpstt - 1) & 7; | |
1457 | env->fpregs[new_fpstt] = *(long double *)A0; | |
1458 | env->fpstt = new_fpstt; | |
1459 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
77f8dd5a FB |
1460 | } |
1461 | #else | |
77f8dd5a FB |
1462 | void OPPROTO op_fldt_ST0_A0(void) |
1463 | { | |
1464 | helper_fldt_ST0_A0(); | |
1465 | } | |
1466 | #endif | |
1467 | ||
04369ff2 FB |
1468 | /* helpers are needed to avoid static constant reference. XXX: find a better way */ |
1469 | #ifdef USE_INT_TO_FLOAT_HELPERS | |
1470 | ||
1471 | void helper_fild_ST0_A0(void) | |
1472 | { | |
c39d5b78 FB |
1473 | int new_fpstt; |
1474 | new_fpstt = (env->fpstt - 1) & 7; | |
1475 | env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0); | |
1476 | env->fpstt = new_fpstt; | |
1477 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
04369ff2 FB |
1478 | } |
1479 | ||
1480 | void helper_fildl_ST0_A0(void) | |
1481 | { | |
c39d5b78 FB |
1482 | int new_fpstt; |
1483 | new_fpstt = (env->fpstt - 1) & 7; | |
1484 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0)); | |
1485 | env->fpstt = new_fpstt; | |
1486 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
04369ff2 FB |
1487 | } |
1488 | ||
1489 | void helper_fildll_ST0_A0(void) | |
1490 | { | |
c39d5b78 FB |
1491 | int new_fpstt; |
1492 | new_fpstt = (env->fpstt - 1) & 7; | |
1493 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0)); | |
1494 | env->fpstt = new_fpstt; | |
1495 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
04369ff2 FB |
1496 | } |
1497 | ||
1498 | void OPPROTO op_fild_ST0_A0(void) | |
1499 | { | |
1500 | helper_fild_ST0_A0(); | |
1501 | } | |
1502 | ||
1503 | void OPPROTO op_fildl_ST0_A0(void) | |
1504 | { | |
1505 | helper_fildl_ST0_A0(); | |
1506 | } | |
1507 | ||
1508 | void OPPROTO op_fildll_ST0_A0(void) | |
1509 | { | |
1510 | helper_fildll_ST0_A0(); | |
1511 | } | |
1512 | ||
1513 | #else | |
1514 | ||
927f621e FB |
1515 | void OPPROTO op_fild_ST0_A0(void) |
1516 | { | |
c39d5b78 FB |
1517 | int new_fpstt; |
1518 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1519 | #ifdef USE_FP_CONVERT |
1520 | FP_CONVERT.i32 = ldsw((void *)A0); | |
c39d5b78 | 1521 | env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32; |
d014c98c | 1522 | #else |
c39d5b78 | 1523 | env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0); |
d014c98c | 1524 | #endif |
c39d5b78 FB |
1525 | env->fpstt = new_fpstt; |
1526 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1527 | } |
1528 | ||
1529 | void OPPROTO op_fildl_ST0_A0(void) | |
1530 | { | |
c39d5b78 FB |
1531 | int new_fpstt; |
1532 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1533 | #ifdef USE_FP_CONVERT |
1534 | FP_CONVERT.i32 = (int32_t) ldl((void *)A0); | |
c39d5b78 | 1535 | env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32; |
d014c98c | 1536 | #else |
c39d5b78 | 1537 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0)); |
d014c98c | 1538 | #endif |
c39d5b78 FB |
1539 | env->fpstt = new_fpstt; |
1540 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1541 | } |
1542 | ||
1543 | void OPPROTO op_fildll_ST0_A0(void) | |
1544 | { | |
c39d5b78 FB |
1545 | int new_fpstt; |
1546 | new_fpstt = (env->fpstt - 1) & 7; | |
d014c98c FB |
1547 | #ifdef USE_FP_CONVERT |
1548 | FP_CONVERT.i64 = (int64_t) ldq((void *)A0); | |
c39d5b78 | 1549 | env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i64; |
d014c98c | 1550 | #else |
c39d5b78 | 1551 | env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0)); |
d014c98c | 1552 | #endif |
c39d5b78 FB |
1553 | env->fpstt = new_fpstt; |
1554 | env->fptags[new_fpstt] = 0; /* validate stack entry */ | |
927f621e FB |
1555 | } |
1556 | ||
04369ff2 FB |
1557 | #endif |
1558 | ||
927f621e FB |
1559 | /* fp store */ |
1560 | ||
1561 | void OPPROTO op_fsts_ST0_A0(void) | |
1562 | { | |
d014c98c | 1563 | #ifdef USE_FP_CONVERT |
87f4827e | 1564 | FP_CONVERT.f = (float)ST0; |
d014c98c FB |
1565 | stfl((void *)A0, FP_CONVERT.f); |
1566 | #else | |
927f621e | 1567 | stfl((void *)A0, (float)ST0); |
d014c98c | 1568 | #endif |
927f621e FB |
1569 | } |
1570 | ||
1571 | void OPPROTO op_fstl_ST0_A0(void) | |
1572 | { | |
77f8dd5a | 1573 | stfq((void *)A0, (double)ST0); |
927f621e FB |
1574 | } |
1575 | ||
77f8dd5a FB |
1576 | #ifdef USE_X86LDOUBLE |
1577 | void OPPROTO op_fstt_ST0_A0(void) | |
1578 | { | |
1579 | *(long double *)A0 = ST0; | |
1580 | } | |
1581 | #else | |
77f8dd5a FB |
1582 | void OPPROTO op_fstt_ST0_A0(void) |
1583 | { | |
1584 | helper_fstt_ST0_A0(); | |
1585 | } | |
1586 | #endif | |
1587 | ||
927f621e FB |
1588 | void OPPROTO op_fist_ST0_A0(void) |
1589 | { | |
d014c98c FB |
1590 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1591 | register CPU86_LDouble d asm("o0"); | |
1592 | #else | |
1593 | CPU86_LDouble d; | |
1594 | #endif | |
927f621e | 1595 | int val; |
d014c98c FB |
1596 | |
1597 | d = ST0; | |
1598 | val = lrint(d); | |
1e5ffbed FB |
1599 | if (val != (int16_t)val) |
1600 | val = -32768; | |
927f621e FB |
1601 | stw((void *)A0, val); |
1602 | } | |
1603 | ||
1604 | void OPPROTO op_fistl_ST0_A0(void) | |
1605 | { | |
d014c98c FB |
1606 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1607 | register CPU86_LDouble d asm("o0"); | |
1608 | #else | |
1609 | CPU86_LDouble d; | |
1610 | #endif | |
927f621e | 1611 | int val; |
d014c98c FB |
1612 | |
1613 | d = ST0; | |
1614 | val = lrint(d); | |
927f621e FB |
1615 | stl((void *)A0, val); |
1616 | } | |
1617 | ||
1618 | void OPPROTO op_fistll_ST0_A0(void) | |
1619 | { | |
d014c98c FB |
1620 | #if defined(__sparc__) && !defined(__sparc_v9__) |
1621 | register CPU86_LDouble d asm("o0"); | |
1622 | #else | |
1623 | CPU86_LDouble d; | |
1624 | #endif | |
927f621e | 1625 | int64_t val; |
d014c98c FB |
1626 | |
1627 | d = ST0; | |
1628 | val = llrint(d); | |
927f621e FB |
1629 | stq((void *)A0, val); |
1630 | } | |
1631 | ||
77f8dd5a FB |
1632 | void OPPROTO op_fbld_ST0_A0(void) |
1633 | { | |
1634 | helper_fbld_ST0_A0(); | |
1635 | } | |
1636 | ||
77f8dd5a FB |
1637 | void OPPROTO op_fbst_ST0_A0(void) |
1638 | { | |
1639 | helper_fbst_ST0_A0(); | |
1640 | } | |
1641 | ||
927f621e FB |
1642 | /* FPU move */ |
1643 | ||
927f621e FB |
1644 | void OPPROTO op_fpush(void) |
1645 | { | |
1646 | fpush(); | |
1647 | } | |
1648 | ||
1649 | void OPPROTO op_fpop(void) | |
1650 | { | |
1651 | fpop(); | |
1652 | } | |
1653 | ||
1654 | void OPPROTO op_fdecstp(void) | |
1655 | { | |
1656 | env->fpstt = (env->fpstt - 1) & 7; | |
1657 | env->fpus &= (~0x4700); | |
1658 | } | |
1659 | ||
1660 | void OPPROTO op_fincstp(void) | |
1661 | { | |
1662 | env->fpstt = (env->fpstt + 1) & 7; | |
1663 | env->fpus &= (~0x4700); | |
1664 | } | |
1665 | ||
1666 | void OPPROTO op_fmov_ST0_FT0(void) | |
1667 | { | |
1668 | ST0 = FT0; | |
1669 | } | |
1670 | ||
1671 | void OPPROTO op_fmov_FT0_STN(void) | |
1672 | { | |
1673 | FT0 = ST(PARAM1); | |
1674 | } | |
1675 | ||
1676 | void OPPROTO op_fmov_ST0_STN(void) | |
1677 | { | |
1678 | ST0 = ST(PARAM1); | |
1679 | } | |
1680 | ||
1681 | void OPPROTO op_fmov_STN_ST0(void) | |
1682 | { | |
1683 | ST(PARAM1) = ST0; | |
1684 | } | |
1685 | ||
1686 | void OPPROTO op_fxchg_ST0_STN(void) | |
1687 | { | |
1688 | CPU86_LDouble tmp; | |
1689 | tmp = ST(PARAM1); | |
1690 | ST(PARAM1) = ST0; | |
1691 | ST0 = tmp; | |
1692 | } | |
1693 | ||
1694 | /* FPU operations */ | |
1695 | ||
1696 | /* XXX: handle nans */ | |
1697 | void OPPROTO op_fcom_ST0_FT0(void) | |
1698 | { | |
1699 | env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ | |
1700 | if (ST0 < FT0) | |
1701 | env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ | |
1702 | else if (ST0 == FT0) | |
1703 | env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ | |
1704 | FORCE_RET(); | |
1705 | } | |
1706 | ||
77f8dd5a FB |
1707 | /* XXX: handle nans */ |
1708 | void OPPROTO op_fucom_ST0_FT0(void) | |
1709 | { | |
1710 | env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ | |
1711 | if (ST0 < FT0) | |
1712 | env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ | |
1713 | else if (ST0 == FT0) | |
1714 | env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ | |
1715 | FORCE_RET(); | |
1716 | } | |
1717 | ||
d0a1ffc9 FB |
1718 | /* XXX: handle nans */ |
1719 | void OPPROTO op_fcomi_ST0_FT0(void) | |
1720 | { | |
1721 | int eflags; | |
1722 | eflags = cc_table[CC_OP].compute_all(); | |
1723 | eflags &= ~(CC_Z | CC_P | CC_C); | |
1724 | if (ST0 < FT0) | |
1725 | eflags |= CC_C; | |
1726 | else if (ST0 == FT0) | |
1727 | eflags |= CC_Z; | |
1728 | CC_SRC = eflags; | |
1729 | FORCE_RET(); | |
1730 | } | |
1731 | ||
1732 | /* XXX: handle nans */ | |
1733 | void OPPROTO op_fucomi_ST0_FT0(void) | |
1734 | { | |
1735 | int eflags; | |
1736 | eflags = cc_table[CC_OP].compute_all(); | |
1737 | eflags &= ~(CC_Z | CC_P | CC_C); | |
1738 | if (ST0 < FT0) | |
1739 | eflags |= CC_C; | |
1740 | else if (ST0 == FT0) | |
1741 | eflags |= CC_Z; | |
1742 | CC_SRC = eflags; | |
1743 | FORCE_RET(); | |
1744 | } | |
1745 | ||
927f621e FB |
1746 | void OPPROTO op_fadd_ST0_FT0(void) |
1747 | { | |
1748 | ST0 += FT0; | |
1749 | } | |
1750 | ||
1751 | void OPPROTO op_fmul_ST0_FT0(void) | |
1752 | { | |
1753 | ST0 *= FT0; | |
1754 | } | |
1755 | ||
1756 | void OPPROTO op_fsub_ST0_FT0(void) | |
1757 | { | |
1758 | ST0 -= FT0; | |
1759 | } | |
1760 | ||
1761 | void OPPROTO op_fsubr_ST0_FT0(void) | |
1762 | { | |
1763 | ST0 = FT0 - ST0; | |
1764 | } | |
1765 | ||
1766 | void OPPROTO op_fdiv_ST0_FT0(void) | |
1767 | { | |
1768 | ST0 /= FT0; | |
1769 | } | |
1770 | ||
1771 | void OPPROTO op_fdivr_ST0_FT0(void) | |
1772 | { | |
1773 | ST0 = FT0 / ST0; | |
1774 | } | |
1775 | ||
1776 | /* fp operations between STN and ST0 */ | |
1777 | ||
1778 | void OPPROTO op_fadd_STN_ST0(void) | |
1779 | { | |
1780 | ST(PARAM1) += ST0; | |
1781 | } | |
1782 | ||
1783 | void OPPROTO op_fmul_STN_ST0(void) | |
1784 | { | |
1785 | ST(PARAM1) *= ST0; | |
1786 | } | |
1787 | ||
1788 | void OPPROTO op_fsub_STN_ST0(void) | |
1789 | { | |
1790 | ST(PARAM1) -= ST0; | |
1791 | } | |
1792 | ||
1793 | void OPPROTO op_fsubr_STN_ST0(void) | |
1794 | { | |
1795 | CPU86_LDouble *p; | |
1796 | p = &ST(PARAM1); | |
1797 | *p = ST0 - *p; | |
1798 | } | |
1799 | ||
1800 | void OPPROTO op_fdiv_STN_ST0(void) | |
1801 | { | |
1802 | ST(PARAM1) /= ST0; | |
1803 | } | |
1804 | ||
1805 | void OPPROTO op_fdivr_STN_ST0(void) | |
1806 | { | |
1807 | CPU86_LDouble *p; | |
1808 | p = &ST(PARAM1); | |
1809 | *p = ST0 / *p; | |
1810 | } | |
1811 | ||
1812 | /* misc FPU operations */ | |
1813 | void OPPROTO op_fchs_ST0(void) | |
1814 | { | |
1815 | ST0 = -ST0; | |
1816 | } | |
1817 | ||
1818 | void OPPROTO op_fabs_ST0(void) | |
1819 | { | |
1820 | ST0 = fabs(ST0); | |
1821 | } | |
1822 | ||
77f8dd5a FB |
1823 | void OPPROTO op_fxam_ST0(void) |
1824 | { | |
1825 | helper_fxam_ST0(); | |
927f621e FB |
1826 | } |
1827 | ||
1828 | void OPPROTO op_fld1_ST0(void) | |
1829 | { | |
87f4827e | 1830 | ST0 = f15rk[1]; |
927f621e FB |
1831 | } |
1832 | ||
77f8dd5a | 1833 | void OPPROTO op_fldl2t_ST0(void) |
927f621e | 1834 | { |
87f4827e | 1835 | ST0 = f15rk[6]; |
927f621e FB |
1836 | } |
1837 | ||
77f8dd5a | 1838 | void OPPROTO op_fldl2e_ST0(void) |
927f621e | 1839 | { |
87f4827e | 1840 | ST0 = f15rk[5]; |
927f621e FB |
1841 | } |
1842 | ||
1843 | void OPPROTO op_fldpi_ST0(void) | |
1844 | { | |
87f4827e | 1845 | ST0 = f15rk[2]; |
927f621e FB |
1846 | } |
1847 | ||
1848 | void OPPROTO op_fldlg2_ST0(void) | |
1849 | { | |
87f4827e | 1850 | ST0 = f15rk[3]; |
927f621e FB |
1851 | } |
1852 | ||
1853 | void OPPROTO op_fldln2_ST0(void) | |
1854 | { | |
87f4827e | 1855 | ST0 = f15rk[4]; |
927f621e FB |
1856 | } |
1857 | ||
1858 | void OPPROTO op_fldz_ST0(void) | |
1859 | { | |
87f4827e | 1860 | ST0 = f15rk[0]; |
927f621e FB |
1861 | } |
1862 | ||
1863 | void OPPROTO op_fldz_FT0(void) | |
1864 | { | |
87f4827e | 1865 | ST0 = f15rk[0]; |
927f621e FB |
1866 | } |
1867 | ||
927f621e FB |
1868 | /* associated heplers to reduce generated code length and to simplify |
1869 | relocation (FP constants are usually stored in .rodata section) */ | |
1870 | ||
1871 | void OPPROTO op_f2xm1(void) | |
1872 | { | |
1873 | helper_f2xm1(); | |
1874 | } | |
1875 | ||
1876 | void OPPROTO op_fyl2x(void) | |
1877 | { | |
1878 | helper_fyl2x(); | |
1879 | } | |
1880 | ||
1881 | void OPPROTO op_fptan(void) | |
1882 | { | |
1883 | helper_fptan(); | |
1884 | } | |
1885 | ||
1886 | void OPPROTO op_fpatan(void) | |
1887 | { | |
1888 | helper_fpatan(); | |
1889 | } | |
1890 | ||
1891 | void OPPROTO op_fxtract(void) | |
1892 | { | |
1893 | helper_fxtract(); | |
1894 | } | |
1895 | ||
1896 | void OPPROTO op_fprem1(void) | |
1897 | { | |
1898 | helper_fprem1(); | |
1899 | } | |
1900 | ||
1901 | ||
1902 | void OPPROTO op_fprem(void) | |
1903 | { | |
1904 | helper_fprem(); | |
1905 | } | |
1906 | ||
1907 | void OPPROTO op_fyl2xp1(void) | |
1908 | { | |
1909 | helper_fyl2xp1(); | |
1910 | } | |
1911 | ||
1912 | void OPPROTO op_fsqrt(void) | |
1913 | { | |
1914 | helper_fsqrt(); | |
1915 | } | |
1916 | ||
1917 | void OPPROTO op_fsincos(void) | |
1918 | { | |
1919 | helper_fsincos(); | |
1920 | } | |
1921 | ||
1922 | void OPPROTO op_frndint(void) | |
1923 | { | |
1924 | helper_frndint(); | |
1925 | } | |
1926 | ||
1927 | void OPPROTO op_fscale(void) | |
1928 | { | |
1929 | helper_fscale(); | |
1930 | } | |
1931 | ||
1932 | void OPPROTO op_fsin(void) | |
1933 | { | |
1934 | helper_fsin(); | |
1935 | } | |
1936 | ||
1937 | void OPPROTO op_fcos(void) | |
1938 | { | |
1939 | helper_fcos(); | |
1940 | } | |
1941 | ||
4b74fe1f FB |
1942 | void OPPROTO op_fnstsw_A0(void) |
1943 | { | |
1944 | int fpus; | |
1945 | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; | |
1946 | stw((void *)A0, fpus); | |
1947 | } | |
1948 | ||
77f8dd5a FB |
1949 | void OPPROTO op_fnstsw_EAX(void) |
1950 | { | |
1951 | int fpus; | |
1952 | fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; | |
1953 | EAX = (EAX & 0xffff0000) | fpus; | |
1954 | } | |
1955 | ||
4b74fe1f FB |
1956 | void OPPROTO op_fnstcw_A0(void) |
1957 | { | |
1958 | stw((void *)A0, env->fpuc); | |
1959 | } | |
1960 | ||
1961 | void OPPROTO op_fldcw_A0(void) | |
1962 | { | |
1963 | int rnd_type; | |
1964 | env->fpuc = lduw((void *)A0); | |
1965 | /* set rounding mode */ | |
1966 | switch(env->fpuc & RC_MASK) { | |
1967 | default: | |
1968 | case RC_NEAR: | |
1969 | rnd_type = FE_TONEAREST; | |
1970 | break; | |
1971 | case RC_DOWN: | |
1972 | rnd_type = FE_DOWNWARD; | |
1973 | break; | |
1974 | case RC_UP: | |
1975 | rnd_type = FE_UPWARD; | |
1976 | break; | |
1977 | case RC_CHOP: | |
1978 | rnd_type = FE_TOWARDZERO; | |
1979 | break; | |
1980 | } | |
1981 | fesetround(rnd_type); | |
1982 | } | |
1983 | ||
1a9353d2 FB |
1984 | void OPPROTO op_fclex(void) |
1985 | { | |
1986 | env->fpus &= 0x7f00; | |
1987 | } | |
1988 | ||
1989 | void OPPROTO op_fninit(void) | |
1990 | { | |
1991 | env->fpus = 0; | |
1992 | env->fpstt = 0; | |
1993 | env->fpuc = 0x37f; | |
1994 | env->fptags[0] = 1; | |
1995 | env->fptags[1] = 1; | |
1996 | env->fptags[2] = 1; | |
1997 | env->fptags[3] = 1; | |
1998 | env->fptags[4] = 1; | |
1999 | env->fptags[5] = 1; | |
2000 | env->fptags[6] = 1; | |
2001 | env->fptags[7] = 1; | |
2002 | } | |
1b6b029e | 2003 | |
d0a1ffc9 FB |
2004 | void OPPROTO op_fnstenv_A0(void) |
2005 | { | |
2006 | helper_fstenv((uint8_t *)A0, PARAM1); | |
2007 | } | |
2008 | ||
2009 | void OPPROTO op_fldenv_A0(void) | |
2010 | { | |
2011 | helper_fldenv((uint8_t *)A0, PARAM1); | |
2012 | } | |
2013 | ||
2014 | void OPPROTO op_fnsave_A0(void) | |
2015 | { | |
2016 | helper_fsave((uint8_t *)A0, PARAM1); | |
2017 | } | |
2018 | ||
2019 | void OPPROTO op_frstor_A0(void) | |
2020 | { | |
2021 | helper_frstor((uint8_t *)A0, PARAM1); | |
2022 | } | |
2023 | ||
1b6b029e FB |
2024 | /* threading support */ |
2025 | void OPPROTO op_lock(void) | |
2026 | { | |
2027 | cpu_lock(); | |
2028 | } | |
2029 | ||
2030 | void OPPROTO op_unlock(void) | |
2031 | { | |
2032 | cpu_unlock(); | |
2033 | } | |
3ec9c4fc | 2034 |