1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
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
81
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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
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
|
#define _GNU_SOURCE
#include <fenv.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <signal.h>
#include <sys/types.h>
#include <unistd.h>
#include "debug.h"
#include "box64stack.h"
#include "x64emu.h"
#include "x64emu_private.h"
#include "x64run_private.h"
#include "x64primop.h"
#include "x64trace.h"
#include "x87emu_private.h"
#include "x87emu_setround.h"
#include "box64context.h"
#include "bridge.h"
#include "modrm.h"
#ifdef TEST_INTERPRETER
uintptr_t TestDE(x64test_t *test, rex_t rex, uintptr_t addr)
#else
uintptr_t RunDE(x64emu_t *emu, rex_t rex, uintptr_t addr)
#endif
{
uint8_t nextop;
reg64_t *oped;
#ifdef TEST_INTERPRETER
x64emu_t*emu = test->emu;
#endif
int oldround = fpu_setround(emu);
nextop = F8;
if(MODREG)
switch(nextop) {
case 0xC0: /* FADDP STx, ST0 */
case 0xC1: /* FADDP ST1, ST0 */
case 0xC2:
case 0xC3:
case 0xC4:
case 0xC5:
case 0xC6:
case 0xC7:
ST(nextop&7).d += ST0.d;
if(!emu->cw.f.C87_PC) ST(nextop&7).d = (float)ST(nextop&7).d;
fpu_do_pop(emu);
break;
case 0xC8: /* FMULP STx, ST0 */
case 0xC9: /* FMULP ST1, ST0 */
case 0xCA:
case 0xCB:
case 0xCC:
case 0xCD:
case 0xCE:
case 0xCF:
ST(nextop&7).d *= ST0.d;
if(!emu->cw.f.C87_PC) ST(nextop&7).d = (float)ST(nextop&7).d;
fpu_do_pop(emu);
break;
case 0xD0:
case 0xD1:
case 0xD2:
case 0xD3:
case 0xD4:
case 0xD5:
case 0xD6:
case 0xD7: /* FCOMP */
fpu_fcom(emu, ST(nextop&7).d);
fpu_do_pop(emu);
break;
case 0xD9: /* FCOMPP */
fpu_fcom(emu, ST1.d);
fpu_do_pop(emu);
fpu_do_pop(emu);
break;
/*ST(1).d = ST0.d - ST(1).d;
fpu_do_pop(emu);
break;*/
case 0xE0: /* FSUBRP STx, ST0 */
case 0xE1: /* FSUBRP ST1, ST0 */
case 0xE2:
case 0xE3:
case 0xE4:
case 0xE5:
case 0xE6:
case 0xE7:
ST(nextop&7).d = ST0.d - ST(nextop&7).d;
if(!emu->cw.f.C87_PC) ST(nextop&7).d = (float)ST(nextop&7).d;
fpu_do_pop(emu);
break;
case 0xE8: /* FSUBP STx, ST0 */
case 0xE9: /* FSUBP ST1, ST0 */
case 0xEA:
case 0xEB:
case 0xEC:
case 0xED:
case 0xEE:
case 0xEF:
ST(nextop&7).d -= ST0.d;
if(!emu->cw.f.C87_PC) ST(nextop&7).d = (float)ST(nextop&7).d;
fpu_do_pop(emu);
break;
case 0xF0: /* FDIVRP STx, ST0 */
case 0xF1: /* FDIVRP ST1, ST0 */
case 0xF2:
case 0xF3:
case 0xF4:
case 0xF5:
case 0xF6:
case 0xF7:
ST(nextop&7).d = ST0.d / ST(nextop&7).d;
if(!emu->cw.f.C87_PC) ST(nextop&7).d = (float)ST(nextop&7).d;
fpu_do_pop(emu);
break;
case 0xF8: /* FDIVP STx, ST0 */
case 0xF9: /* FDIVP ST1, ST0 */
case 0xFA:
case 0xFB:
case 0xFC:
case 0xFD:
case 0xFE:
case 0xFF:
ST(nextop&7).d /= ST0.d;
if(!emu->cw.f.C87_PC) ST(nextop&7).d = (float)ST(nextop&7).d;
fpu_do_pop(emu);
break;
default:
fesetround(oldround);
return 0;
} else
switch((nextop>>3)&7) {
case 0: /* FIADD ST0, Ew int */
GETEW(0);
ST0.d += EW->sword[0];
if(!emu->cw.f.C87_PC) ST0.d = (float)ST0.d;
break;
case 1: /* FIMUL ST0, Ew int */
GETEW(0);
ST0.d *= EW->sword[0];
if(!emu->cw.f.C87_PC) ST0.d = (float)ST0.d;
break;
case 4: /* FISUB ST0, Ew int */
GETEW(0);
ST0.d -= EW->sword[0];
if(!emu->cw.f.C87_PC) ST0.d = (float)ST0.d;
break;
case 5: /* FISUBR ST0, Ew int */
GETEW(0);
ST0.d = (double)EW->sword[0] - ST0.d;
if(!emu->cw.f.C87_PC) ST0.d = (float)ST0.d;
break;
case 6: /* FIDIV ST0, Ew int */
GETEW(0);
ST0.d /= EW->sword[0];
if(!emu->cw.f.C87_PC) ST0.d = (float)ST0.d;
break;
case 7: /* FIDIVR ST0, Ew int */
GETEW(0);
ST0.d = (double)EW->sword[0] / ST0.d;
if(!emu->cw.f.C87_PC) ST0.d = (float)ST0.d;
break;
default:
fesetround(oldround);
return 0;
}
fesetround(oldround);
return addr;
}
|