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#define _GNU_SOURCE
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <fenv.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "x64_signals.h"
#include "os.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 "box64context.h"
#include "bridge.h"
#include "emit_signals.h"
#include "modrm.h"
#ifdef TEST_INTERPRETER
uintptr_t TestF20F(x64test_t *test, rex_t rex, uintptr_t addr, int *step)
#else
uintptr_t RunF20F(x64emu_t *emu, rex_t rex, uintptr_t addr, int *step)
#endif
{
uint8_t opcode;
uint8_t nextop;
int8_t tmp8s;
uint8_t tmp8u;
int32_t tmp32s;
int64_t tmp64s0, tmp64s1;
uint64_t tmp64u;
reg64_t *oped, *opgd;
sse_regs_t *opex, *opgx, eax1;
mmx87_regs_t *opgm;
int mask_nan[4];
int is_nan;
#ifdef TEST_INTERPRETER
x64emu_t*emu = test->emu;
#endif
opcode = F8;
switch(opcode) {
case 0x10: /* MOVSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
GX->q[0] = EX->q[0];
if(!MODREG) {
// EX is not a register
GX->q[1] = 0;
}
break;
case 0x11: /* MOVSD Ex, Gx */
nextop = F8;
GETEX8(0);
GETGX;
EX->q[0] = GX->q[0];
break;
case 0x12: /* MOVDDUP Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
GX->q[1] = GX->q[0] = EX->q[0];
break;
case 0x1E: /* NOP */
nextop = F8;
_GETED(0);
break;
case 0x2A: /* CVTSI2SD Gx, Ed */
nextop = F8;
_GETED(0);
GETGX;
if(rex.w) {
GX->d[0] = ED->sq[0];
} else {
GX->d[0] = ED->sdword[0];
}
break;
case 0x2B: /* MOVNTSD Ex, Gx */
nextop = F8;
if(!MODREG) {
GETEX8(0);
GETGX;
EX->q[0] = GX->q[0];
}
break;
case 0x2C: /* CVTTSD2SI Gd, Ex */
nextop = F8;
_GETEX(0);
GETGD;
if(rex.w)
if(isnan(EX->d[0]) || isinf(EX->d[0]) || EX->d[0]>=(double)0x7fffffffffffffffLL)
GD->q[0] = 0x8000000000000000LL;
else
GD->sq[0] = EX->d[0];
else {
if(isnan(EX->d[0]) || isinf(EX->d[0]) || EX->d[0]>(double)0x7fffffff)
GD->dword[0] = 0x80000000;
else
GD->sdword[0] = EX->d[0];
GD->dword[1] = 0;
}
break;
case 0x2D: /* CVTSD2SI Gd, Ex */
nextop = F8;
_GETEX(0);
GETGD;
if(rex.w) {
if(isnan(EX->d[0]) || isinf(EX->d[0]) || EX->d[0]>=(double)0x7fffffffffffffffLL)
GD->q[0] = 0x8000000000000000LL;
else
switch(emu->mxcsr.f.MXCSR_RC) {
case ROUND_Nearest: {
int round = fegetround();
fesetround(FE_TONEAREST);
GD->sq[0] = nearbyint(EX->d[0]);
fesetround(round);
break;
}
case ROUND_Down:
GD->sq[0] = floor(EX->d[0]);
break;
case ROUND_Up:
GD->sq[0] = ceil(EX->d[0]);
break;
case ROUND_Chop:
GD->sq[0] = EX->d[0];
break;
}
} else {
if(isnan(EX->d[0]) || isinf(EX->d[0]) || EX->d[0]>(double)0x7fffffff)
GD->dword[0] = 0x80000000;
else
switch(emu->mxcsr.f.MXCSR_RC) {
case ROUND_Nearest: {
int round = fegetround();
fesetround(FE_TONEAREST);
GD->sdword[0] = nearbyint(EX->d[0]);
fesetround(round);
break;
}
case ROUND_Down:
GD->sdword[0] = floor(EX->d[0]);
break;
case ROUND_Up:
GD->sdword[0] = ceil(EX->d[0]);
break;
case ROUND_Chop:
GD->sdword[0] = EX->d[0];
break;
}
GD->dword[1] = 0;
}
break;
case 0x38: // more opcodes
opcode = F8;
switch(opcode) {
case 0xF0: // CRC32 Gd, Eb
nextop = F8;
_GETEB(0);
GETGD;
GD->dword[0] ^= EB->byte[0];
for (int i = 0; i < 8; i++) {
if (GD->dword[0] & 1)
GD->dword[0] = (GD->dword[0] >> 1) ^ 0x82f63b78;
else
GD->dword[0] = (GD->dword[0] >> 1);
}
GD->dword[1] = 0;
break;
case 0xF1: // CRC32 Gd, Ed
nextop = F8;
_GETED(0);
GETGD;
for(int j=0; j<4*(rex.w+1); ++j) {
GD->dword[0] ^= ED->byte[j];
for (int i = 0; i < 8; i++) {
if (GD->dword[0] & 1)
GD->dword[0] = (GD->dword[0] >> 1) ^ 0x82f63b78;
else
GD->dword[0] = (GD->dword[0] >> 1);
}
}
GD->dword[1] = 0;
break;
default:
return 0;
}
break;
case 0x51: /* SQRTSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
if(EX->d[0]<0.0 )
GX->d[0] = -NAN;
else if(isnan(EX->d[0]))
GX->d[0] = EX->d[0];
else
GX->d[0] = sqrt(EX->d[0]);
break;
case 0x58: /* ADDSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
MARK_NAN_D_2(GX, EX);
{
NAN_PROPAGATION(GX->d[0], EX->d[0], break);
GX->d[0] += EX->d[0];
}
CHECK_NAN_D(GX);
break;
case 0x59: /* MULSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
// mul generate a -NAN only if doing (+/-)inf * (+/-)0
MARK_NAN_D_2(GX, EX);
{
NAN_PROPAGATION(GX->d[0], EX->d[0], break);
GX->d[0] *= EX->d[0];
}
CHECK_NAN_D(GX);
break;
case 0x5A: /* CVTSD2SS Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
GX->f[0] = EX->d[0];
break;
case 0x5C: /* SUBSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
MARK_NAN_D_2(GX, EX);
{
NAN_PROPAGATION(GX->d[0], EX->d[0], break);
GX->d[0] -= EX->d[0];
}
CHECK_NAN_D(GX);
break;
case 0x5D: /* MINSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
if (isnan(GX->d[0]) || isnan(EX->d[0]) || islessequal(EX->d[0], GX->d[0]))
GX->d[0] = EX->d[0];
break;
case 0x5E: /* DIVSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
MARK_NAN_D_2(GX, EX);
NAN_PROPAGATION(GX->d[0], EX->d[0], break);
GX->d[0] /= EX->d[0];
CHECK_NAN_D(GX);
break;
case 0x5F: /* MAXSD Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
if (isnan(GX->d[0]) || isnan(EX->d[0]) || isgreaterequal(EX->d[0], GX->d[0]))
GX->d[0] = EX->d[0];
break;
case 0x70: /* PSHUFLW Gx, Ex, Ib */
nextop = F8;
_GETEX(1);
GETGX;
tmp8u = F8;
if(GX==EX) {
for (int i=0; i<4; ++i)
eax1.uw[i] = EX->uw[(tmp8u>>(i*2))&3];
GX->q[0] = eax1.q[0];
} else {
for (int i=0; i<4; ++i)
GX->uw[i] = EX->uw[(tmp8u>>(i*2))&3];
GX->q[1] = EX->q[1];
}
break;
case 0x78: /* INSERTQ Gx, Ex, ib, ib */
// AMD only
nextop = F8;
if(!BOX64ENV(cputype) || !(MODREG)) {
#ifndef TEST_INTERPRETER
EmitSignal(emu, X64_SIGILL, (void*)R_RIP, 0);
#endif
} else {
//TODO: test /r
GETGX;
GETEX(2);
tmp8s = F8&0x3f;
tmp8u = F8&0x3f;
tmp64u = (1<<(tmp8s+1))-1;
GX->q[0] &=~(tmp64u<<tmp8u);
GX->q[0] |= (EX->q[0]&tmp64u)<<tmp8u;
}
break;
case 0x79: /* INSERTQ Gx, Ex */
// AMD only
nextop = F8;
if(!BOX64ENV(cputype) || !(MODREG)) {
#ifndef TEST_INTERPRETER
EmitSignal(emu, X64_SIGILL, (void*)R_RIP, 0);
#endif
} else {
//TODO: test /r
GETGX;
GETEX(2);
tmp8u = EX->ub[8]&0x3f;
tmp8s = EX->ub[9]&0x3f;
tmp64u = (1<<(tmp8s+1))-1;
GX->q[0] &=~(tmp64u<<tmp8u);
GX->q[0] |= (EX->q[0]&tmp64u)<<tmp8u;
}
break;
case 0x7C: /* HADDPS Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
mask_nan[0] = isnanf(GX->f[0]) || isnanf(GX->f[1]);
mask_nan[1] = isnanf(GX->f[2]) || isnanf(GX->f[3]);
GX->f[0] += GX->f[1];
GX->f[1] = GX->f[2] + GX->f[3];
if(EX==GX) {
GX->q[1] = GX->q[0];
mask_nan[2] = mask_nan[0];
mask_nan[3] = mask_nan[1];
} else {
mask_nan[2] = isnanf(EX->f[0]) || isnanf(EX->f[1]);
mask_nan[3] = isnanf(EX->f[2]) || isnanf(EX->f[3]);
GX->f[2] = EX->f[0] + EX->f[1];
GX->f[3] = EX->f[2] + EX->f[3];
}
CHECK_NAN_VF(GX);
break;
case 0x7D: /* HSUBPS Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
mask_nan[0] = isnanf(GX->f[0]) || isnanf(GX->f[1]);
mask_nan[1] = isnanf(GX->f[2]) || isnanf(GX->f[3]);
GX->f[0] -= GX->f[1];
GX->f[1] = GX->f[2] - GX->f[3];
if(EX==GX) {
GX->q[1] = GX->q[0];
mask_nan[2] = mask_nan[0];
mask_nan[3] = mask_nan[1];
} else {
mask_nan[2] = isnanf(EX->f[0]) || isnanf(EX->f[1]);
mask_nan[3] = isnanf(EX->f[2]) || isnanf(EX->f[3]);
GX->f[2] = EX->f[0] - EX->f[1];
GX->f[3] = EX->f[2] - EX->f[3];
}
CHECK_NAN_VF(GX);
break;
GOCOND(0x80
, tmp32s = F32S; CHECK_FLAGS(emu);
, addr += tmp32s;
,,STEP3
) /* 0x80 -> 0x8F Jxx */
case 0xA5: // ignore F2 prefix
case 0xBA:
#ifdef TEST_INTERPRETER
return Test0F(test, rex, addr-1, step);
#else
return Run0F(emu, rex, addr-1, step);
#endif
case 0xC2: /* CMPSD Gx, Ex, Ib */
nextop = F8;
_GETEX(1);
GETGX;
tmp8u = F8;
tmp8s = 0;
switch(tmp8u&7) {
case 0: tmp8s=(GX->d[0] == EX->d[0]); break;
case 1: tmp8s=isless(GX->d[0], EX->d[0]) && !(isnan(GX->d[0]) || isnan(EX->d[0])); break;
case 2: tmp8s=islessequal(GX->d[0], EX->d[0]) && !(isnan(GX->d[0]) || isnan(EX->d[0])); break;
case 3: tmp8s=isnan(GX->d[0]) || isnan(EX->d[0]); break;
case 4: tmp8s=isnan(GX->d[0]) || isnan(EX->d[0]) || (GX->d[0] != EX->d[0]); break;
case 5: tmp8s=isnan(GX->d[0]) || isnan(EX->d[0]) || isgreaterequal(GX->d[0], EX->d[0]); break;
case 6: tmp8s=isnan(GX->d[0]) || isnan(EX->d[0]) || isgreater(GX->d[0], EX->d[0]); break;
case 7: tmp8s=!isnan(GX->d[0]) && !isnan(EX->d[0]); break;
}
GX->q[0]=(tmp8s)?0xffffffffffffffffLL:0LL;
break;
case 0xD0: /* ADDSUBPS Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
MARK_NAN_VF_2(GX, EX);
GX->f[0] -= EX->f[0];
GX->f[1] += EX->f[1];
GX->f[2] -= EX->f[2];
GX->f[3] += EX->f[3];
CHECK_NAN_VF(GX);
break;
case 0xD6: /* MOVDQ2Q Gm, Ex */
nextop = F8;
_GETEX(0);
GETGM;
GM->q = EX->q[0];
break;
case 0xE6: /* CVTPD2DQ Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
switch(emu->mxcsr.f.MXCSR_RC) {
case ROUND_Nearest: {
int round = fegetround();
fesetround(FE_TONEAREST);
tmp64s0 = nearbyint(EX->d[0]);
tmp64s1 = nearbyint(EX->d[1]);
fesetround(round);
break;
}
case ROUND_Down:
tmp64s0 = floor(EX->d[0]);
tmp64s1 = floor(EX->d[1]);
break;
case ROUND_Up:
tmp64s0 = ceil(EX->d[0]);
tmp64s1 = ceil(EX->d[1]);
break;
case ROUND_Chop:
tmp64s0 = EX->d[0];
tmp64s1 = EX->d[1];
break;
}
if (tmp64s0==(int32_t)tmp64s0 && !isnan(EX->d[0])) {
GX->sd[0] = (int32_t)tmp64s0;
} else {
GX->sd[0] = INT32_MIN;
}
if (tmp64s1==(int32_t)tmp64s1 && !isnan(EX->d[1])) {
GX->sd[1] = (int32_t)tmp64s1;
} else {
GX->sd[1] = INT32_MIN;
}
GX->q[1] = 0;
break;
case 0xF0: /* LDDQU Gx, Ex */
nextop = F8;
_GETEX(0);
GETGX;
memcpy(GX, EX, 16);
break;
default:
return 0;
}
return addr;
}
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