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Added DC opcodes

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This commit is contained in:
ptitSeb 2021-03-26 15:43:38 +01:00
parent 6d02f7f897
commit 451cfa521b
4 changed files with 156 additions and 1 deletions
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1
CMakeLists.txt
View File

@ -133,6 +133,7 @@ set(ELFLOADER_SRC
"${BOX64_ROOT}/src/emu/x64rund9.c"
"${BOX64_ROOT}/src/emu/x64runda.c"
"${BOX64_ROOT}/src/emu/x64rundb.c"
"${BOX64_ROOT}/src/emu/x64rundc.c"
"${BOX64_ROOT}/src/emu/x64rundd.c"
"${BOX64_ROOT}/src/emu/x64rundf.c"
"${BOX64_ROOT}/src/emu/x64runf0.c"

9
src/emu/x64run.c
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@ -1085,7 +1085,14 @@ x64emurun:
if(emu->quit)
goto fini;
break;
case 0xDC: /* x87 opcodes */
if(RunDC(emu, rex)) {
unimp = 1;
goto fini;
}
if(emu->quit)
goto fini;
break;
case 0xDD: /* x87 opcodes */
if(RunDD(emu, rex)) {
unimp = 1;

1
src/emu/x64run_private.h
View File

@ -109,6 +109,7 @@ int RunD8(x64emu_t *emu, rex_t rex);
int RunD9(x64emu_t *emu, rex_t rex);
int RunDA(x64emu_t *emu, rex_t rex);
int RunDB(x64emu_t *emu, rex_t rex);
int RunDC(x64emu_t *emu, rex_t rex);
int RunDD(x64emu_t *emu, rex_t rex);
int RunDF(x64emu_t *emu, rex_t rex);
int RunF0(x64emu_t *emu, rex_t rex);

146
src/emu/x64rundc.c Normal file
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@ -0,0 +1,146 @@
#define _GNU_SOURCE
#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 "x64run.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 "modrm.h"
int RunDC(x64emu_t *emu, rex_t rex)
{
uint8_t nextop;
reg64_t *oped;
nextop = F8;
switch(nextop) {
case 0xC0:
case 0xC1:
case 0xC2:
case 0xC3:
case 0xC4:
case 0xC5:
case 0xC6:
case 0xC7: /* FADD */
ST(nextop&7).d += ST0.d;
break;
case 0xC8:
case 0xC9:
case 0xCA:
case 0xCB:
case 0xCC:
case 0xCD:
case 0xCE:
case 0xCF: /* FMUL */
ST(nextop&7).d *= ST0.d;
break;
case 0xD0:
case 0xD1:
case 0xD2:
case 0xD3:
case 0xD4:
case 0xD5:
case 0xD6:
case 0xD7: /* FCOM */
fpu_fcom(emu, ST(nextop&7).d);
break;
case 0xD8:
case 0xD9:
case 0xDA:
case 0xDB:
case 0xDC:
case 0xDD:
case 0xDE:
case 0xDF: /* FCOMP */
fpu_fcom(emu, ST(nextop&7).d); // TODO: is this ok?
fpu_do_pop(emu);
break;
case 0xE0:
case 0xE1:
case 0xE2:
case 0xE3:
case 0xE4:
case 0xE5:
case 0xE6:
case 0xE7: /* FSUBR */
ST(nextop&7).d = ST0.d -ST(nextop&7).d;
break;
case 0xE8:
case 0xE9:
case 0xEA:
case 0xEB:
case 0xEC:
case 0xED:
case 0xEE:
case 0xEF: /* FSUB */
ST(nextop&7).d -= ST0.d;
break;
case 0xF0:
case 0xF1:
case 0xF2:
case 0xF3:
case 0xF4:
case 0xF5:
case 0xF6:
case 0xF7: /* FDIVR */
ST(nextop&7).d = ST0.d / ST(nextop&7).d;
break;
case 0xF8:
case 0xF9:
case 0xFA:
case 0xFB:
case 0xFC:
case 0xFD:
case 0xFE:
case 0xFF: /* FDIV */
ST(nextop&7).d /= ST0.d;
break;
default:
GETED(0);
switch((nextop>>3)&7) {
case 0: /* FADD ST0, double */
ST0.d += *(double*)ED;
break;
case 1: /* FMUL ST0, double */
ST0.d *= *(double*)ED;
break;
case 2: /* FCOM ST0, double */
fpu_fcom(emu, *(double*)ED);
break;
case 3: /* FCOMP ST0, double */
fpu_fcom(emu, *(double*)ED);
fpu_do_pop(emu);
break;
case 4: /* FSUB ST0, double */
ST0.d -= *(double*)ED;
break;
case 5: /* FSUBR ST0, double */
ST0.d = *(double*)ED - ST0.d;
break;
case 6: /* FDIV ST0, double */
ST0.d /= *(double*)ED;
break;
case 7: /* FDIVR ST0, double */
ST0.d = *(double*)ED / ST0.d;
break;
default:
return 1;
}
}
return 0;
}