|
1
2
3
4
5
|
/*
* i386 micro operations
*
* Copyright (c) 2003 Fabrice Bellard
*
|
|
6
7
8
9
|
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
|
|
10
|
*
|
|
11
12
13
14
|
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
|
|
15
|
*
|
|
16
17
18
|
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
19
20
|
*/
#include "exec-i386.h"
|
|
21
|
|
|
22
23
|
/* n must be a constant to be efficient */
static inline int lshift(int x, int n)
|
|
24
|
{
|
|
25
26
27
28
|
if (n >= 0)
return x << n;
else
return x >> (-n);
|
|
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
}
/* we define the various pieces of code used by the JIT */
#define REG EAX
#define REGNAME _EAX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG ECX
#define REGNAME _ECX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EDX
#define REGNAME _EDX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EBX
#define REGNAME _EBX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG ESP
#define REGNAME _ESP
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EBP
#define REGNAME _EBP
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG ESI
#define REGNAME _ESI
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EDI
#define REGNAME _EDI
#include "opreg_template.h"
#undef REG
#undef REGNAME
|
|
81
|
/* operations with flags */
|
|
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
void OPPROTO op_addl_T0_T1_cc(void)
{
CC_SRC = T0;
T0 += T1;
CC_DST = T0;
}
void OPPROTO op_orl_T0_T1_cc(void)
{
T0 |= T1;
CC_DST = T0;
}
void OPPROTO op_andl_T0_T1_cc(void)
{
T0 &= T1;
CC_DST = T0;
}
void OPPROTO op_subl_T0_T1_cc(void)
{
CC_SRC = T0;
T0 -= T1;
CC_DST = T0;
}
void OPPROTO op_xorl_T0_T1_cc(void)
{
T0 ^= T1;
CC_DST = T0;
}
void OPPROTO op_cmpl_T0_T1_cc(void)
{
CC_SRC = T0;
CC_DST = T0 - T1;
}
void OPPROTO op_negl_T0_cc(void)
{
CC_SRC = 0;
T0 = -T0;
CC_DST = T0;
}
void OPPROTO op_incl_T0_cc(void)
{
|
|
130
|
CC_SRC = cc_table[CC_OP].compute_c();
|
|
131
132
133
134
135
136
|
T0++;
CC_DST = T0;
}
void OPPROTO op_decl_T0_cc(void)
{
|
|
137
|
CC_SRC = cc_table[CC_OP].compute_c();
|
|
138
139
140
141
142
143
144
145
146
|
T0--;
CC_DST = T0;
}
void OPPROTO op_testl_T0_T1_cc(void)
{
CC_DST = T0 & T1;
}
|
|
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/* operations without flags */
void OPPROTO op_addl_T0_T1(void)
{
T0 += T1;
}
void OPPROTO op_orl_T0_T1(void)
{
T0 |= T1;
}
void OPPROTO op_andl_T0_T1(void)
{
T0 &= T1;
}
void OPPROTO op_subl_T0_T1(void)
{
T0 -= T1;
}
void OPPROTO op_xorl_T0_T1(void)
{
T0 ^= T1;
}
void OPPROTO op_negl_T0(void)
{
T0 = -T0;
}
void OPPROTO op_incl_T0(void)
{
T0++;
}
void OPPROTO op_decl_T0(void)
{
T0--;
}
void OPPROTO op_notl_T0(void)
{
T0 = ~T0;
}
|
|
194
195
196
197
198
|
void OPPROTO op_bswapl_T0(void)
{
T0 = bswap32(T0);
}
|
|
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/* multiply/divide */
void OPPROTO op_mulb_AL_T0(void)
{
unsigned int res;
res = (uint8_t)EAX * (uint8_t)T0;
EAX = (EAX & 0xffff0000) | res;
CC_SRC = (res & 0xff00);
}
void OPPROTO op_imulb_AL_T0(void)
{
int res;
res = (int8_t)EAX * (int8_t)T0;
EAX = (EAX & 0xffff0000) | (res & 0xffff);
CC_SRC = (res != (int8_t)res);
}
void OPPROTO op_mulw_AX_T0(void)
{
unsigned int res;
res = (uint16_t)EAX * (uint16_t)T0;
EAX = (EAX & 0xffff0000) | (res & 0xffff);
EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
CC_SRC = res >> 16;
}
void OPPROTO op_imulw_AX_T0(void)
{
int res;
res = (int16_t)EAX * (int16_t)T0;
EAX = (EAX & 0xffff0000) | (res & 0xffff);
EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
CC_SRC = (res != (int16_t)res);
}
void OPPROTO op_mull_EAX_T0(void)
{
uint64_t res;
res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0);
EAX = res;
EDX = res >> 32;
CC_SRC = res >> 32;
}
void OPPROTO op_imull_EAX_T0(void)
{
int64_t res;
res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0);
EAX = res;
EDX = res >> 32;
CC_SRC = (res != (int32_t)res);
}
void OPPROTO op_imulw_T0_T1(void)
{
int res;
res = (int16_t)T0 * (int16_t)T1;
T0 = res;
CC_SRC = (res != (int16_t)res);
}
void OPPROTO op_imull_T0_T1(void)
{
int64_t res;
|
|
263
|
res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
|
|
264
265
266
267
268
|
T0 = res;
CC_SRC = (res != (int32_t)res);
}
/* division, flags are undefined */
|
|
269
|
/* XXX: add exceptions for overflow */
|
|
270
|
|
|
271
272
273
274
275
276
|
void OPPROTO op_divb_AL_T0(void)
{
unsigned int num, den, q, r;
num = (EAX & 0xffff);
den = (T0 & 0xff);
|
|
277
278
|
if (den == 0) {
EIP = PARAM1;
|
|
279
|
raise_exception(EXCP00_DIVZ);
|
|
280
|
}
|
|
281
282
283
284
285
286
287
288
289
290
291
|
q = (num / den) & 0xff;
r = (num % den) & 0xff;
EAX = (EAX & 0xffff0000) | (r << 8) | q;
}
void OPPROTO op_idivb_AL_T0(void)
{
int num, den, q, r;
num = (int16_t)EAX;
den = (int8_t)T0;
|
|
292
293
|
if (den == 0) {
EIP = PARAM1;
|
|
294
|
raise_exception(EXCP00_DIVZ);
|
|
295
|
}
|
|
296
297
298
299
300
301
302
303
304
305
306
|
q = (num / den) & 0xff;
r = (num % den) & 0xff;
EAX = (EAX & 0xffff0000) | (r << 8) | q;
}
void OPPROTO op_divw_AX_T0(void)
{
unsigned int num, den, q, r;
num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
den = (T0 & 0xffff);
|
|
307
308
|
if (den == 0) {
EIP = PARAM1;
|
|
309
|
raise_exception(EXCP00_DIVZ);
|
|
310
|
}
|
|
311
312
313
314
315
316
317
318
319
320
321
322
|
q = (num / den) & 0xffff;
r = (num % den) & 0xffff;
EAX = (EAX & 0xffff0000) | q;
EDX = (EDX & 0xffff0000) | r;
}
void OPPROTO op_idivw_AX_T0(void)
{
int num, den, q, r;
num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
den = (int16_t)T0;
|
|
323
324
|
if (den == 0) {
EIP = PARAM1;
|
|
325
|
raise_exception(EXCP00_DIVZ);
|
|
326
|
}
|
|
327
328
329
330
331
332
333
334
|
q = (num / den) & 0xffff;
r = (num % den) & 0xffff;
EAX = (EAX & 0xffff0000) | q;
EDX = (EDX & 0xffff0000) | r;
}
void OPPROTO op_divl_EAX_T0(void)
{
|
|
335
|
helper_divl_EAX_T0(PARAM1);
|
|
336
337
338
339
|
}
void OPPROTO op_idivl_EAX_T0(void)
{
|
|
340
|
helper_idivl_EAX_T0(PARAM1);
|
|
341
342
|
}
|
|
343
|
/* constant load & misc op */
|
|
344
|
|
|
345
|
void OPPROTO op_movl_T0_im(void)
|
|
346
347
348
349
|
{
T0 = PARAM1;
}
|
|
350
351
352
353
354
355
356
357
358
359
|
void OPPROTO op_addl_T0_im(void)
{
T0 += PARAM1;
}
void OPPROTO op_andl_T0_ffff(void)
{
T0 = T0 & 0xffff;
}
|
|
360
361
362
363
364
|
void OPPROTO op_andl_T0_im(void)
{
T0 = T0 & PARAM1;
}
|
|
365
366
367
368
369
|
void OPPROTO op_movl_T0_T1(void)
{
T0 = T1;
}
|
|
370
|
void OPPROTO op_movl_T1_im(void)
|
|
371
372
373
374
|
{
T1 = PARAM1;
}
|
|
375
376
377
378
379
380
381
382
383
384
|
void OPPROTO op_addl_T1_im(void)
{
T1 += PARAM1;
}
void OPPROTO op_movl_T1_A0(void)
{
T1 = A0;
}
|
|
385
|
void OPPROTO op_movl_A0_im(void)
|
|
386
387
388
389
|
{
A0 = PARAM1;
}
|
|
390
391
392
393
394
|
void OPPROTO op_addl_A0_im(void)
{
A0 += PARAM1;
}
|
|
395
396
397
398
399
|
void OPPROTO op_addl_A0_AL(void)
{
A0 += (EAX & 0xff);
}
|
|
400
401
402
403
404
|
void OPPROTO op_andl_A0_ffff(void)
{
A0 = A0 & 0xffff;
}
|
|
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
|
/* memory access */
void OPPROTO op_ldub_T0_A0(void)
{
T0 = ldub((uint8_t *)A0);
}
void OPPROTO op_ldsb_T0_A0(void)
{
T0 = ldsb((int8_t *)A0);
}
void OPPROTO op_lduw_T0_A0(void)
{
T0 = lduw((uint8_t *)A0);
}
void OPPROTO op_ldsw_T0_A0(void)
{
T0 = ldsw((int8_t *)A0);
}
void OPPROTO op_ldl_T0_A0(void)
{
T0 = ldl((uint8_t *)A0);
}
void OPPROTO op_ldub_T1_A0(void)
{
T1 = ldub((uint8_t *)A0);
}
void OPPROTO op_ldsb_T1_A0(void)
{
T1 = ldsb((int8_t *)A0);
}
void OPPROTO op_lduw_T1_A0(void)
{
T1 = lduw((uint8_t *)A0);
}
void OPPROTO op_ldsw_T1_A0(void)
{
T1 = ldsw((int8_t *)A0);
}
void OPPROTO op_ldl_T1_A0(void)
{
T1 = ldl((uint8_t *)A0);
}
void OPPROTO op_stb_T0_A0(void)
{
stb((uint8_t *)A0, T0);
}
void OPPROTO op_stw_T0_A0(void)
{
stw((uint8_t *)A0, T0);
}
void OPPROTO op_stl_T0_A0(void)
{
stl((uint8_t *)A0, T0);
}
|
|
472
473
474
475
476
477
478
479
480
481
482
|
/* used for bit operations */
void OPPROTO op_add_bitw_A0_T1(void)
{
A0 += ((int32_t)T1 >> 4) << 1;
}
void OPPROTO op_add_bitl_A0_T1(void)
{
A0 += ((int32_t)T1 >> 5) << 2;
}
|
|
483
484
|
/* indirect jump */
|
|
485
|
|
|
486
487
|
void OPPROTO op_jmp_T0(void)
{
|
|
488
|
EIP = T0;
|
|
489
490
491
492
|
}
void OPPROTO op_jmp_im(void)
{
|
|
493
|
EIP = PARAM1;
|
|
494
495
|
}
|
|
496
497
498
499
500
501
|
void OPPROTO op_hlt(void)
{
env->exception_index = EXCP_HLT;
cpu_loop_exit();
}
|
|
502
|
void OPPROTO op_raise_interrupt(void)
|
|
503
|
{
|
|
504
|
int intno;
|
|
505
|
unsigned int next_eip;
|
|
506
|
intno = PARAM1;
|
|
507
508
|
next_eip = PARAM2;
raise_interrupt(intno, 1, 0, next_eip);
|
|
509
510
|
}
|
|
511
|
void OPPROTO op_raise_exception(void)
|
|
512
|
{
|
|
513
514
515
|
int exception_index;
exception_index = PARAM1;
raise_exception(exception_index);
|
|
516
517
518
519
520
521
522
|
}
void OPPROTO op_into(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
if (eflags & CC_O) {
|
|
523
|
raise_interrupt(EXCP04_INTO, 1, 0, PARAM1);
|
|
524
|
}
|
|
525
|
FORCE_RET();
|
|
526
527
|
}
|
|
528
529
530
531
532
|
void OPPROTO op_cli(void)
{
env->eflags &= ~IF_MASK;
}
|
|
533
534
|
void OPPROTO op_sti(void)
{
|
|
535
|
env->eflags |= IF_MASK;
|
|
536
537
|
}
|
|
538
|
#if 0
|
|
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
|
/* vm86plus instructions */
void OPPROTO op_cli_vm(void)
{
env->eflags &= ~VIF_MASK;
}
void OPPROTO op_sti_vm(void)
{
env->eflags |= VIF_MASK;
if (env->eflags & VIP_MASK) {
EIP = PARAM1;
raise_exception(EXCP0D_GPF);
}
FORCE_RET();
}
|
|
554
|
#endif
|
|
555
|
|
|
556
557
558
559
560
561
|
void OPPROTO op_boundw(void)
{
int low, high, v;
low = ldsw((uint8_t *)A0);
high = ldsw((uint8_t *)A0 + 2);
v = (int16_t)T0;
|
|
562
563
|
if (v < low || v > high) {
EIP = PARAM1;
|
|
564
|
raise_exception(EXCP05_BOUND);
|
|
565
|
}
|
|
566
567
568
569
570
571
572
573
574
|
FORCE_RET();
}
void OPPROTO op_boundl(void)
{
int low, high, v;
low = ldl((uint8_t *)A0);
high = ldl((uint8_t *)A0 + 4);
v = T0;
|
|
575
576
|
if (v < low || v > high) {
EIP = PARAM1;
|
|
577
|
raise_exception(EXCP05_BOUND);
|
|
578
|
}
|
|
579
580
581
582
583
|
FORCE_RET();
}
void OPPROTO op_cmpxchg8b(void)
{
|
|
584
|
helper_cmpxchg8b();
|
|
585
586
|
}
|
|
587
588
589
590
591
592
593
594
595
596
597
|
void OPPROTO op_jmp_tb_next(void)
{
JUMP_TB(PARAM1, 0, PARAM2);
}
void OPPROTO op_movl_T0_0(void)
{
T0 = 0;
}
/* multiple size ops */
|
|
598
599
600
601
|
#define ldul ldl
#define SHIFT 0
|
|
602
|
#include "ops_template.h"
|
|
603
604
605
|
#undef SHIFT
#define SHIFT 1
|
|
606
|
#include "ops_template.h"
|
|
607
608
609
|
#undef SHIFT
#define SHIFT 2
|
|
610
|
#include "ops_template.h"
|
|
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
|
#undef SHIFT
/* sign extend */
void OPPROTO op_movsbl_T0_T0(void)
{
T0 = (int8_t)T0;
}
void OPPROTO op_movzbl_T0_T0(void)
{
T0 = (uint8_t)T0;
}
void OPPROTO op_movswl_T0_T0(void)
{
T0 = (int16_t)T0;
}
void OPPROTO op_movzwl_T0_T0(void)
{
T0 = (uint16_t)T0;
}
void OPPROTO op_movswl_EAX_AX(void)
{
EAX = (int16_t)EAX;
}
void OPPROTO op_movsbw_AX_AL(void)
{
EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff);
}
void OPPROTO op_movslq_EDX_EAX(void)
{
EDX = (int32_t)EAX >> 31;
}
void OPPROTO op_movswl_DX_AX(void)
{
EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff);
}
/* push/pop */
void op_pushl_T0(void)
{
uint32_t offset;
offset = ESP - 4;
stl((void *)offset, T0);
/* modify ESP after to handle exceptions correctly */
ESP = offset;
}
|
|
666
667
668
669
670
671
672
673
674
675
|
void op_pushw_T0(void)
{
uint32_t offset;
offset = ESP - 2;
stw((void *)offset, T0);
/* modify ESP after to handle exceptions correctly */
ESP = offset;
}
void op_pushl_ss32_T0(void)
|
|
676
677
678
|
{
uint32_t offset;
offset = ESP - 4;
|
|
679
|
stl(env->segs[R_SS].base + offset, T0);
|
|
680
681
682
683
684
685
686
687
|
/* modify ESP after to handle exceptions correctly */
ESP = offset;
}
void op_pushw_ss32_T0(void)
{
uint32_t offset;
offset = ESP - 2;
|
|
688
|
stw(env->segs[R_SS].base + offset, T0);
|
|
689
690
691
692
|
/* modify ESP after to handle exceptions correctly */
ESP = offset;
}
|
|
693
694
695
696
|
void op_pushl_ss16_T0(void)
{
uint32_t offset;
offset = (ESP - 4) & 0xffff;
|
|
697
|
stl(env->segs[R_SS].base + offset, T0);
|
|
698
699
700
701
702
703
704
705
|
/* modify ESP after to handle exceptions correctly */
ESP = (ESP & ~0xffff) | offset;
}
void op_pushw_ss16_T0(void)
{
uint32_t offset;
offset = (ESP - 2) & 0xffff;
|
|
706
|
stw(env->segs[R_SS].base + offset, T0);
|
|
707
708
709
710
711
|
/* modify ESP after to handle exceptions correctly */
ESP = (ESP & ~0xffff) | offset;
}
/* NOTE: ESP update is done after */
|
|
712
713
714
|
void op_popl_T0(void)
{
T0 = ldl((void *)ESP);
|
|
715
716
717
718
719
720
721
722
723
|
}
void op_popw_T0(void)
{
T0 = lduw((void *)ESP);
}
void op_popl_ss32_T0(void)
{
|
|
724
|
T0 = ldl(env->segs[R_SS].base + ESP);
|
|
725
726
727
728
|
}
void op_popw_ss32_T0(void)
{
|
|
729
|
T0 = lduw(env->segs[R_SS].base + ESP);
|
|
730
731
732
733
|
}
void op_popl_ss16_T0(void)
{
|
|
734
|
T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff));
|
|
735
736
737
738
|
}
void op_popw_ss16_T0(void)
{
|
|
739
|
T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff));
|
|
740
741
742
743
|
}
void op_addl_ESP_4(void)
{
|
|
744
745
746
|
ESP += 4;
}
|
|
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
|
void op_addl_ESP_2(void)
{
ESP += 2;
}
void op_addw_ESP_4(void)
{
ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff);
}
void op_addw_ESP_2(void)
{
ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff);
}
|
|
762
763
764
765
|
void op_addl_ESP_im(void)
{
ESP += PARAM1;
}
|
|
766
|
|
|
767
768
769
|
void op_addw_ESP_im(void)
{
ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
|
|
770
771
|
}
|
|
772
|
void OPPROTO op_rdtsc(void)
|
|
773
|
{
|
|
774
|
helper_rdtsc();
|
|
775
776
|
}
|
|
777
778
779
780
781
|
void OPPROTO op_cpuid(void)
{
helper_cpuid();
}
|
|
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
|
/* bcd */
/* XXX: exception */
void OPPROTO op_aam(void)
{
int base = PARAM1;
int al, ah;
al = EAX & 0xff;
ah = al / base;
al = al % base;
EAX = (EAX & ~0xffff) | al | (ah << 8);
CC_DST = al;
}
void OPPROTO op_aad(void)
{
int base = PARAM1;
int al, ah;
al = EAX & 0xff;
ah = (EAX >> 8) & 0xff;
al = ((ah * base) + al) & 0xff;
EAX = (EAX & ~0xffff) | al;
CC_DST = al;
}
void OPPROTO op_aaa(void)
{
int icarry;
int al, ah, af;
int eflags;
eflags = cc_table[CC_OP].compute_all();
af = eflags & CC_A;
al = EAX & 0xff;
ah = (EAX >> 8) & 0xff;
icarry = (al > 0xf9);
if (((al & 0x0f) > 9 ) || af) {
al = (al + 6) & 0x0f;
ah = (ah + 1 + icarry) & 0xff;
eflags |= CC_C | CC_A;
} else {
eflags &= ~(CC_C | CC_A);
al &= 0x0f;
}
EAX = (EAX & ~0xffff) | al | (ah << 8);
CC_SRC = eflags;
}
void OPPROTO op_aas(void)
{
int icarry;
int al, ah, af;
int eflags;
eflags = cc_table[CC_OP].compute_all();
af = eflags & CC_A;
al = EAX & 0xff;
ah = (EAX >> 8) & 0xff;
icarry = (al < 6);
if (((al & 0x0f) > 9 ) || af) {
al = (al - 6) & 0x0f;
ah = (ah - 1 - icarry) & 0xff;
eflags |= CC_C | CC_A;
} else {
eflags &= ~(CC_C | CC_A);
al &= 0x0f;
}
EAX = (EAX & ~0xffff) | al | (ah << 8);
CC_SRC = eflags;
}
void OPPROTO op_daa(void)
{
int al, af, cf;
int eflags;
eflags = cc_table[CC_OP].compute_all();
cf = eflags & CC_C;
af = eflags & CC_A;
al = EAX & 0xff;
eflags = 0;
if (((al & 0x0f) > 9 ) || af) {
al = (al + 6) & 0xff;
eflags |= CC_A;
}
if ((al > 0x9f) || cf) {
al = (al + 0x60) & 0xff;
eflags |= CC_C;
}
EAX = (EAX & ~0xff) | al;
/* well, speed is not an issue here, so we compute the flags by hand */
eflags |= (al == 0) << 6; /* zf */
eflags |= parity_table[al]; /* pf */
eflags |= (al & 0x80); /* sf */
CC_SRC = eflags;
}
void OPPROTO op_das(void)
{
int al, al1, af, cf;
int eflags;
eflags = cc_table[CC_OP].compute_all();
cf = eflags & CC_C;
af = eflags & CC_A;
al = EAX & 0xff;
eflags = 0;
al1 = al;
if (((al & 0x0f) > 9 ) || af) {
eflags |= CC_A;
if (al < 6 || cf)
eflags |= CC_C;
al = (al - 6) & 0xff;
}
if ((al1 > 0x99) || cf) {
al = (al - 0x60) & 0xff;
eflags |= CC_C;
}
EAX = (EAX & ~0xff) | al;
/* well, speed is not an issue here, so we compute the flags by hand */
eflags |= (al == 0) << 6; /* zf */
eflags |= parity_table[al]; /* pf */
eflags |= (al & 0x80); /* sf */
CC_SRC = eflags;
}
|
|
912
913
914
915
|
/* segment handling */
void OPPROTO op_movl_seg_T0(void)
{
|
|
916
917
918
919
920
921
922
|
load_seg(PARAM1, T0 & 0xffff, PARAM2);
}
/* faster VM86 version */
void OPPROTO op_movl_seg_T0_vm(void)
{
int selector;
|
|
923
|
SegmentCache *sc;
|
|
924
925
926
|
selector = T0 & 0xffff;
/* env->segs[] access */
|
|
927
928
929
|
sc = (SegmentCache *)((char *)env + PARAM1);
sc->selector = selector;
sc->base = (void *)(selector << 4);
|
|
930
931
932
933
|
}
void OPPROTO op_movl_T0_seg(void)
{
|
|
934
|
T0 = env->segs[PARAM1].selector;
|
|
935
936
|
}
|
|
937
938
939
940
941
|
void OPPROTO op_movl_A0_seg(void)
{
A0 = *(unsigned long *)((char *)env + PARAM1);
}
|
|
942
943
944
945
946
|
void OPPROTO op_addl_A0_seg(void)
{
A0 += *(unsigned long *)((char *)env + PARAM1);
}
|
|
947
948
949
950
951
952
953
954
955
956
|
void OPPROTO op_lsl(void)
{
helper_lsl();
}
void OPPROTO op_lar(void)
{
helper_lar();
}
|
|
957
958
959
960
961
962
|
/* T0: segment, T1:eip */
void OPPROTO op_ljmp_T0_T1(void)
{
jmp_seg(T0 & 0xffff, T1);
}
|
|
963
964
965
966
967
|
void OPPROTO op_iret_protected(void)
{
helper_iret_protected(PARAM1);
}
|
|
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
|
void OPPROTO op_lldt_T0(void)
{
helper_lldt_T0();
}
void OPPROTO op_ltr_T0(void)
{
helper_ltr_T0();
}
/* CR registers access */
void OPPROTO op_movl_crN_T0(void)
{
helper_movl_crN_T0(PARAM1);
}
/* DR registers access */
void OPPROTO op_movl_drN_T0(void)
{
helper_movl_drN_T0(PARAM1);
}
void OPPROTO op_lmsw_T0(void)
{
/* only 4 lower bits of CR0 are modified */
T0 = (env->cr[0] & ~0xf) | (T0 & 0xf);
helper_movl_crN_T0(0);
}
|
|
997
998
999
1000
1001
|
void OPPROTO op_invlpg_A0(void)
{
helper_invlpg(A0);
}
|
|
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
|
void OPPROTO op_movl_T0_env(void)
{
T0 = *(uint32_t *)((char *)env + PARAM1);
}
void OPPROTO op_movl_env_T0(void)
{
*(uint32_t *)((char *)env + PARAM1) = T0;
}
void OPPROTO op_movl_env_T1(void)
{
*(uint32_t *)((char *)env + PARAM1) = T1;
}
void OPPROTO op_clts(void)
{
env->cr[0] &= ~CR0_TS_MASK;
}
|
|
1022
1023
|
/* flags handling */
|
|
1024
1025
1026
1027
|
/* slow jumps cases : in order to avoid calling a function with a
pointer (which can generate a stack frame on PowerPC), we use
op_setcc to set T0 and then call op_jcc. */
void OPPROTO op_jcc(void)
|
|
1028
|
{
|
|
1029
1030
|
if (T0)
JUMP_TB(PARAM1, 0, PARAM2);
|
|
1031
|
else
|
|
1032
|
JUMP_TB(PARAM1, 1, PARAM3);
|
|
1033
|
FORCE_RET();
|
|
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
|
}
/* slow set cases (compute x86 flags) */
void OPPROTO op_seto_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 11) & 1;
}
void OPPROTO op_setb_T0_cc(void)
{
T0 = cc_table[CC_OP].compute_c();
}
void OPPROTO op_setz_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 6) & 1;
}
void OPPROTO op_setbe_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags & (CC_Z | CC_C)) != 0;
}
void OPPROTO op_sets_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 7) & 1;
}
void OPPROTO op_setp_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 2) & 1;
}
void OPPROTO op_setl_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
}
void OPPROTO op_setle_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
}
void OPPROTO op_xor_T0_1(void)
{
T0 ^= 1;
}
void OPPROTO op_set_cc_op(void)
{
CC_OP = PARAM1;
}
|
|
1101
|
#define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff)
|
|
1102
|
|
|
1103
1104
|
void OPPROTO op_movl_eflags_T0(void)
{
|
|
1105
1106
1107
1108
1109
|
int eflags;
eflags = T0;
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
|
|
1110
1111
|
env->eflags = (env->eflags & ~FL_UPDATE_MASK32) |
(eflags & FL_UPDATE_MASK32);
|
|
1112
1113
1114
1115
1116
1117
1118
1119
1120
|
}
void OPPROTO op_movw_eflags_T0(void)
{
int eflags;
eflags = T0;
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
|
|
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
|
env->eflags = (env->eflags & ~FL_UPDATE_MASK16) |
(eflags & FL_UPDATE_MASK16);
}
void OPPROTO op_movl_eflags_T0_cpl0(void)
{
load_eflags(T0, FL_UPDATE_CPL0_MASK);
}
void OPPROTO op_movw_eflags_T0_cpl0(void)
{
load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff);
|
|
1133
1134
|
}
|
|
1135
1136
|
#if 0
/* vm86plus version */
|
|
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
|
void OPPROTO op_movw_eflags_T0_vm(void)
{
int eflags;
eflags = T0;
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
(eflags & FL_UPDATE_MASK16);
if (eflags & IF_MASK) {
env->eflags |= VIF_MASK;
if (env->eflags & VIP_MASK) {
EIP = PARAM1;
raise_exception(EXCP0D_GPF);
}
}
FORCE_RET();
}
void OPPROTO op_movl_eflags_T0_vm(void)
{
int eflags;
eflags = T0;
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
(eflags & FL_UPDATE_MASK32);
if (eflags & IF_MASK) {
env->eflags |= VIF_MASK;
if (env->eflags & VIP_MASK) {
EIP = PARAM1;
raise_exception(EXCP0D_GPF);
}
}
FORCE_RET();
|
|
1173
|
}
|
|
1174
|
#endif
|
|
1175
1176
1177
1178
1179
1180
|
/* XXX: compute only O flag */
void OPPROTO op_movb_eflags_T0(void)
{
int of;
of = cc_table[CC_OP].compute_all() & CC_O;
|
|
1181
|
CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of;
|
|
1182
1183
1184
1185
|
}
void OPPROTO op_movl_T0_eflags(void)
{
|
|
1186
1187
1188
1189
1190
|
int eflags;
eflags = cc_table[CC_OP].compute_all();
eflags |= (DF & DF_MASK);
eflags |= env->eflags & ~(VM_MASK | RF_MASK);
T0 = eflags;
|
|
1191
1192
|
}
|
|
1193
1194
|
/* vm86plus version */
#if 0
|
|
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
|
void OPPROTO op_movl_T0_eflags_vm(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
eflags |= (DF & DF_MASK);
eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
if (env->eflags & VIF_MASK)
eflags |= IF_MASK;
T0 = eflags;
}
|
|
1205
|
#endif
|
|
1206
|
|
|
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
|
void OPPROTO op_cld(void)
{
DF = 1;
}
void OPPROTO op_std(void)
{
DF = -1;
}
void OPPROTO op_clc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
eflags &= ~CC_C;
CC_SRC = eflags;
}
void OPPROTO op_stc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
eflags |= CC_C;
CC_SRC = eflags;
}
void OPPROTO op_cmc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
eflags ^= CC_C;
CC_SRC = eflags;
}
|
|
1241
1242
1243
1244
1245
1246
1247
|
void OPPROTO op_salc(void)
{
int cf;
cf = cc_table[CC_OP].compute_c();
EAX = (EAX & ~0xff) | ((-cf) & 0xff);
}
|
|
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
|
static int compute_all_eflags(void)
{
return CC_SRC;
}
static int compute_c_eflags(void)
{
return CC_SRC & CC_C;
}
static int compute_c_mul(void)
{
int cf;
cf = (CC_SRC != 0);
return cf;
}
static int compute_all_mul(void)
{
int cf, pf, af, zf, sf, of;
cf = (CC_SRC != 0);
pf = 0; /* undefined */
af = 0; /* undefined */
zf = 0; /* undefined */
sf = 0; /* undefined */
of = cf << 11;
return cf | pf | af | zf | sf | of;
}
CCTable cc_table[CC_OP_NB] = {
[CC_OP_DYNAMIC] = { /* should never happen */ },
[CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
[CC_OP_MUL] = { compute_all_mul, compute_c_mul },
[CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
[CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
[CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
|
|
1288
1289
1290
1291
|
[CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
[CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
[CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
|
|
1292
1293
1294
1295
|
[CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
[CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
[CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
|
|
1296
1297
1298
1299
|
[CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
[CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
[CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
|
|
1300
1301
1302
1303
|
[CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
[CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
[CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
|
|
1304
1305
|
[CC_OP_INCB] = { compute_all_incb, compute_c_incl },
[CC_OP_INCW] = { compute_all_incw, compute_c_incl },
|
|
1306
1307
|
[CC_OP_INCL] = { compute_all_incl, compute_c_incl },
|
|
1308
1309
|
[CC_OP_DECB] = { compute_all_decb, compute_c_incl },
[CC_OP_DECW] = { compute_all_decw, compute_c_incl },
|
|
1310
1311
|
[CC_OP_DECL] = { compute_all_decl, compute_c_incl },
|
|
1312
1313
|
[CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
[CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
|
|
1314
|
[CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
|
|
1315
|
|
|
1316
1317
1318
|
[CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
[CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
[CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
|
|
1319
|
};
|
|
1320
|
|
|
1321
1322
1323
|
/* floating point support. Some of the code for complicated x87
functions comes from the LGPL'ed x86 emulator found in the Willows
TWIN windows emulator. */
|
|
1324
|
|
|
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
|
#if defined(__powerpc__)
extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
/* correct (but slow) PowerPC rint() (glibc version is incorrect) */
double qemu_rint(double x)
{
double y = 4503599627370496.0;
if (fabs(x) >= y)
return x;
if (x < 0)
y = -y;
y = (x + y) - y;
if (y == 0.0)
y = copysign(y, x);
return y;
}
#define rint qemu_rint
#endif
|
|
1345
1346
1347
1348
|
/* fp load FT0 */
void OPPROTO op_flds_FT0_A0(void)
{
|
|
1349
1350
1351
1352
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i32 = ldl((void *)A0);
FT0 = FP_CONVERT.f;
#else
|
|
1353
|
FT0 = ldfl((void *)A0);
|
|
1354
|
#endif
|
|
1355
1356
1357
1358
|
}
void OPPROTO op_fldl_FT0_A0(void)
{
|
|
1359
1360
1361
1362
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i64 = ldq((void *)A0);
FT0 = FP_CONVERT.d;
#else
|
|
1363
|
FT0 = ldfq((void *)A0);
|
|
1364
|
#endif
|
|
1365
1366
|
}
|
|
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
|
/* helpers are needed to avoid static constant reference. XXX: find a better way */
#ifdef USE_INT_TO_FLOAT_HELPERS
void helper_fild_FT0_A0(void)
{
FT0 = (CPU86_LDouble)ldsw((void *)A0);
}
void helper_fildl_FT0_A0(void)
{
FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
}
void helper_fildll_FT0_A0(void)
{
FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
}
void OPPROTO op_fild_FT0_A0(void)
{
helper_fild_FT0_A0();
}
void OPPROTO op_fildl_FT0_A0(void)
{
helper_fildl_FT0_A0();
}
void OPPROTO op_fildll_FT0_A0(void)
{
helper_fildll_FT0_A0();
}
#else
|
|
1402
1403
|
void OPPROTO op_fild_FT0_A0(void)
{
|
|
1404
1405
1406
1407
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i32 = ldsw((void *)A0);
FT0 = (CPU86_LDouble)FP_CONVERT.i32;
#else
|
|
1408
|
FT0 = (CPU86_LDouble)ldsw((void *)A0);
|
|
1409
|
#endif
|
|
1410
1411
1412
1413
|
}
void OPPROTO op_fildl_FT0_A0(void)
{
|
|
1414
1415
1416
1417
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
FT0 = (CPU86_LDouble)FP_CONVERT.i32;
#else
|
|
1418
|
FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
|
|
1419
|
#endif
|
|
1420
1421
1422
1423
|
}
void OPPROTO op_fildll_FT0_A0(void)
{
|
|
1424
1425
1426
1427
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
FT0 = (CPU86_LDouble)FP_CONVERT.i64;
#else
|
|
1428
|
FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
|
|
1429
|
#endif
|
|
1430
|
}
|
|
1431
|
#endif
|
|
1432
1433
1434
1435
1436
|
/* fp load ST0 */
void OPPROTO op_flds_ST0_A0(void)
{
|
|
1437
1438
1439
1440
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i32 = ldl((void *)A0);
ST0 = FP_CONVERT.f;
#else
|
|
1441
|
ST0 = ldfl((void *)A0);
|
|
1442
|
#endif
|
|
1443
1444
1445
1446
|
}
void OPPROTO op_fldl_ST0_A0(void)
{
|
|
1447
1448
1449
1450
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i64 = ldq((void *)A0);
ST0 = FP_CONVERT.d;
#else
|
|
1451
|
ST0 = ldfq((void *)A0);
|
|
1452
|
#endif
|
|
1453
1454
|
}
|
|
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
|
#ifdef USE_X86LDOUBLE
void OPPROTO op_fldt_ST0_A0(void)
{
ST0 = *(long double *)A0;
}
#else
void OPPROTO op_fldt_ST0_A0(void)
{
helper_fldt_ST0_A0();
}
#endif
|
|
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
|
/* helpers are needed to avoid static constant reference. XXX: find a better way */
#ifdef USE_INT_TO_FLOAT_HELPERS
void helper_fild_ST0_A0(void)
{
ST0 = (CPU86_LDouble)ldsw((void *)A0);
}
void helper_fildl_ST0_A0(void)
{
ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
}
void helper_fildll_ST0_A0(void)
{
ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
}
void OPPROTO op_fild_ST0_A0(void)
{
helper_fild_ST0_A0();
}
void OPPROTO op_fildl_ST0_A0(void)
{
helper_fildl_ST0_A0();
}
void OPPROTO op_fildll_ST0_A0(void)
{
helper_fildll_ST0_A0();
}
#else
|
|
1502
1503
|
void OPPROTO op_fild_ST0_A0(void)
{
|
|
1504
1505
1506
1507
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i32 = ldsw((void *)A0);
ST0 = (CPU86_LDouble)FP_CONVERT.i32;
#else
|
|
1508
|
ST0 = (CPU86_LDouble)ldsw((void *)A0);
|
|
1509
|
#endif
|
|
1510
1511
1512
1513
|
}
void OPPROTO op_fildl_ST0_A0(void)
{
|
|
1514
1515
1516
1517
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
ST0 = (CPU86_LDouble)FP_CONVERT.i32;
#else
|
|
1518
|
ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
|
|
1519
|
#endif
|
|
1520
1521
1522
1523
|
}
void OPPROTO op_fildll_ST0_A0(void)
{
|
|
1524
1525
1526
1527
|
#ifdef USE_FP_CONVERT
FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
ST0 = (CPU86_LDouble)FP_CONVERT.i64;
#else
|
|
1528
|
ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
|
|
1529
|
#endif
|
|
1530
1531
|
}
|
|
1532
1533
|
#endif
|
|
1534
1535
1536
1537
|
/* fp store */
void OPPROTO op_fsts_ST0_A0(void)
{
|
|
1538
|
#ifdef USE_FP_CONVERT
|
|
1539
|
FP_CONVERT.f = (float)ST0;
|
|
1540
1541
|
stfl((void *)A0, FP_CONVERT.f);
#else
|
|
1542
|
stfl((void *)A0, (float)ST0);
|
|
1543
|
#endif
|
|
1544
1545
1546
1547
|
}
void OPPROTO op_fstl_ST0_A0(void)
{
|
|
1548
|
stfq((void *)A0, (double)ST0);
|
|
1549
1550
|
}
|
|
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
|
#ifdef USE_X86LDOUBLE
void OPPROTO op_fstt_ST0_A0(void)
{
*(long double *)A0 = ST0;
}
#else
void OPPROTO op_fstt_ST0_A0(void)
{
helper_fstt_ST0_A0();
}
#endif
|
|
1563
1564
|
void OPPROTO op_fist_ST0_A0(void)
{
|
|
1565
1566
1567
1568
1569
|
#if defined(__sparc__) && !defined(__sparc_v9__)
register CPU86_LDouble d asm("o0");
#else
CPU86_LDouble d;
#endif
|
|
1570
|
int val;
|
|
1571
1572
1573
|
d = ST0;
val = lrint(d);
|
|
1574
1575
|
if (val != (int16_t)val)
val = -32768;
|
|
1576
1577
1578
1579
1580
|
stw((void *)A0, val);
}
void OPPROTO op_fistl_ST0_A0(void)
{
|
|
1581
1582
1583
1584
1585
|
#if defined(__sparc__) && !defined(__sparc_v9__)
register CPU86_LDouble d asm("o0");
#else
CPU86_LDouble d;
#endif
|
|
1586
|
int val;
|
|
1587
1588
1589
|
d = ST0;
val = lrint(d);
|
|
1590
1591
1592
1593
1594
|
stl((void *)A0, val);
}
void OPPROTO op_fistll_ST0_A0(void)
{
|
|
1595
1596
1597
1598
1599
|
#if defined(__sparc__) && !defined(__sparc_v9__)
register CPU86_LDouble d asm("o0");
#else
CPU86_LDouble d;
#endif
|
|
1600
|
int64_t val;
|
|
1601
1602
1603
|
d = ST0;
val = llrint(d);
|
|
1604
1605
1606
|
stq((void *)A0, val);
}
|
|
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
|
void OPPROTO op_fbld_ST0_A0(void)
{
helper_fbld_ST0_A0();
}
void OPPROTO op_fbst_ST0_A0(void)
{
helper_fbst_ST0_A0();
}
|
|
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
|
/* FPU move */
void OPPROTO op_fpush(void)
{
fpush();
}
void OPPROTO op_fpop(void)
{
fpop();
}
void OPPROTO op_fdecstp(void)
{
env->fpstt = (env->fpstt - 1) & 7;
env->fpus &= (~0x4700);
}
void OPPROTO op_fincstp(void)
{
env->fpstt = (env->fpstt + 1) & 7;
env->fpus &= (~0x4700);
}
void OPPROTO op_fmov_ST0_FT0(void)
{
ST0 = FT0;
}
void OPPROTO op_fmov_FT0_STN(void)
{
FT0 = ST(PARAM1);
}
void OPPROTO op_fmov_ST0_STN(void)
{
ST0 = ST(PARAM1);
}
void OPPROTO op_fmov_STN_ST0(void)
{
ST(PARAM1) = ST0;
}
void OPPROTO op_fxchg_ST0_STN(void)
{
CPU86_LDouble tmp;
tmp = ST(PARAM1);
ST(PARAM1) = ST0;
ST0 = tmp;
}
/* FPU operations */
/* XXX: handle nans */
void OPPROTO op_fcom_ST0_FT0(void)
{
env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
if (ST0 < FT0)
env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
else if (ST0 == FT0)
env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
FORCE_RET();
}
|
|
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
|
/* XXX: handle nans */
void OPPROTO op_fucom_ST0_FT0(void)
{
env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
if (ST0 < FT0)
env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
else if (ST0 == FT0)
env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
FORCE_RET();
}
|
|
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
|
/* XXX: handle nans */
void OPPROTO op_fcomi_ST0_FT0(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
eflags &= ~(CC_Z | CC_P | CC_C);
if (ST0 < FT0)
eflags |= CC_C;
else if (ST0 == FT0)
eflags |= CC_Z;
CC_SRC = eflags;
FORCE_RET();
}
/* XXX: handle nans */
void OPPROTO op_fucomi_ST0_FT0(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
eflags &= ~(CC_Z | CC_P | CC_C);
if (ST0 < FT0)
eflags |= CC_C;
else if (ST0 == FT0)
eflags |= CC_Z;
CC_SRC = eflags;
FORCE_RET();
}
|
|
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
|
void OPPROTO op_fadd_ST0_FT0(void)
{
ST0 += FT0;
}
void OPPROTO op_fmul_ST0_FT0(void)
{
ST0 *= FT0;
}
void OPPROTO op_fsub_ST0_FT0(void)
{
ST0 -= FT0;
}
void OPPROTO op_fsubr_ST0_FT0(void)
{
ST0 = FT0 - ST0;
}
void OPPROTO op_fdiv_ST0_FT0(void)
{
ST0 /= FT0;
}
void OPPROTO op_fdivr_ST0_FT0(void)
{
ST0 = FT0 / ST0;
}
/* fp operations between STN and ST0 */
void OPPROTO op_fadd_STN_ST0(void)
{
ST(PARAM1) += ST0;
}
void OPPROTO op_fmul_STN_ST0(void)
{
ST(PARAM1) *= ST0;
}
void OPPROTO op_fsub_STN_ST0(void)
{
ST(PARAM1) -= ST0;
}
void OPPROTO op_fsubr_STN_ST0(void)
{
CPU86_LDouble *p;
p = &ST(PARAM1);
*p = ST0 - *p;
}
void OPPROTO op_fdiv_STN_ST0(void)
{
ST(PARAM1) /= ST0;
}
void OPPROTO op_fdivr_STN_ST0(void)
{
CPU86_LDouble *p;
p = &ST(PARAM1);
*p = ST0 / *p;
}
/* misc FPU operations */
void OPPROTO op_fchs_ST0(void)
{
ST0 = -ST0;
}
void OPPROTO op_fabs_ST0(void)
{
ST0 = fabs(ST0);
}
|
|
1798
1799
1800
|
void OPPROTO op_fxam_ST0(void)
{
helper_fxam_ST0();
|
|
1801
1802
1803
1804
|
}
void OPPROTO op_fld1_ST0(void)
{
|
|
1805
|
ST0 = f15rk[1];
|
|
1806
1807
|
}
|
|
1808
|
void OPPROTO op_fldl2t_ST0(void)
|
|
1809
|
{
|
|
1810
|
ST0 = f15rk[6];
|
|
1811
1812
|
}
|
|
1813
|
void OPPROTO op_fldl2e_ST0(void)
|
|
1814
|
{
|
|
1815
|
ST0 = f15rk[5];
|
|
1816
1817
1818
1819
|
}
void OPPROTO op_fldpi_ST0(void)
{
|
|
1820
|
ST0 = f15rk[2];
|
|
1821
1822
1823
1824
|
}
void OPPROTO op_fldlg2_ST0(void)
{
|
|
1825
|
ST0 = f15rk[3];
|
|
1826
1827
1828
1829
|
}
void OPPROTO op_fldln2_ST0(void)
{
|
|
1830
|
ST0 = f15rk[4];
|
|
1831
1832
1833
1834
|
}
void OPPROTO op_fldz_ST0(void)
{
|
|
1835
|
ST0 = f15rk[0];
|
|
1836
1837
1838
1839
|
}
void OPPROTO op_fldz_FT0(void)
{
|
|
1840
|
ST0 = f15rk[0];
|
|
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
|
}
/* associated heplers to reduce generated code length and to simplify
relocation (FP constants are usually stored in .rodata section) */
void OPPROTO op_f2xm1(void)
{
helper_f2xm1();
}
void OPPROTO op_fyl2x(void)
{
helper_fyl2x();
}
void OPPROTO op_fptan(void)
{
helper_fptan();
}
void OPPROTO op_fpatan(void)
{
helper_fpatan();
}
void OPPROTO op_fxtract(void)
{
helper_fxtract();
}
void OPPROTO op_fprem1(void)
{
helper_fprem1();
}
void OPPROTO op_fprem(void)
{
helper_fprem();
}
void OPPROTO op_fyl2xp1(void)
{
helper_fyl2xp1();
}
void OPPROTO op_fsqrt(void)
{
helper_fsqrt();
}
void OPPROTO op_fsincos(void)
{
helper_fsincos();
}
void OPPROTO op_frndint(void)
{
helper_frndint();
}
void OPPROTO op_fscale(void)
{
helper_fscale();
}
void OPPROTO op_fsin(void)
{
helper_fsin();
}
void OPPROTO op_fcos(void)
{
helper_fcos();
}
|
|
1917
1918
1919
1920
1921
1922
1923
|
void OPPROTO op_fnstsw_A0(void)
{
int fpus;
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
stw((void *)A0, fpus);
}
|
|
1924
1925
1926
1927
1928
1929
1930
|
void OPPROTO op_fnstsw_EAX(void)
{
int fpus;
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
EAX = (EAX & 0xffff0000) | fpus;
}
|
|
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
|
void OPPROTO op_fnstcw_A0(void)
{
stw((void *)A0, env->fpuc);
}
void OPPROTO op_fldcw_A0(void)
{
int rnd_type;
env->fpuc = lduw((void *)A0);
/* set rounding mode */
switch(env->fpuc & RC_MASK) {
default:
case RC_NEAR:
rnd_type = FE_TONEAREST;
break;
case RC_DOWN:
rnd_type = FE_DOWNWARD;
break;
case RC_UP:
rnd_type = FE_UPWARD;
break;
case RC_CHOP:
rnd_type = FE_TOWARDZERO;
break;
}
fesetround(rnd_type);
}
|
|
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
|
void OPPROTO op_fclex(void)
{
env->fpus &= 0x7f00;
}
void OPPROTO op_fninit(void)
{
env->fpus = 0;
env->fpstt = 0;
env->fpuc = 0x37f;
env->fptags[0] = 1;
env->fptags[1] = 1;
env->fptags[2] = 1;
env->fptags[3] = 1;
env->fptags[4] = 1;
env->fptags[5] = 1;
env->fptags[6] = 1;
env->fptags[7] = 1;
}
|
|
1978
|
|
|
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
|
void OPPROTO op_fnstenv_A0(void)
{
helper_fstenv((uint8_t *)A0, PARAM1);
}
void OPPROTO op_fldenv_A0(void)
{
helper_fldenv((uint8_t *)A0, PARAM1);
}
void OPPROTO op_fnsave_A0(void)
{
helper_fsave((uint8_t *)A0, PARAM1);
}
void OPPROTO op_frstor_A0(void)
{
helper_frstor((uint8_t *)A0, PARAM1);
}
|
|
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
|
/* threading support */
void OPPROTO op_lock(void)
{
cpu_lock();
}
void OPPROTO op_unlock(void)
{
cpu_unlock();
}
|
|
2009
|
|