mirrors/box86
0
0
Fork 0
mirror of https://github.com/ptitSeb/box86.git synced 2024-11-27 03:44:40 +08:00
Code Issues Packages Projects Releases Wiki Activity

A few more instructions

Browse Source
This commit is contained in:
ptitSeb 2018-12-18 09:09:02 +01:00
parent 46308d7f02
commit 2c7df9c1fd
1 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/x86run.c
View File

@ -85,7 +85,7 @@ int Run(x86emu_t *emu)
case 0x55:
case 0x56:
case 0x57: /* PUSH Reg */
tmp8u = opcode&7;
tmp8u = opcode-0x50;
Push(emu, emu->regs[tmp8u].dword[0]);
break;
case 0x58:
@ -96,7 +96,7 @@ int Run(x86emu_t *emu)
case 0x5D:
case 0x5E:
case 0x5F: /*POP Reg */
tmp8u = opcode&7;
tmp8u = opcode-0x58;
emu->regs[tmp8u].dword[0] = Pop(emu);
break;
case 0x66: /* Prefix for changing width of intructions, so here, down to 16bits */
@ -126,9 +126,7 @@ int Run(x86emu_t *emu)
case 0x33: /* XOR Gd,Ed */
nextop = Fetch8(emu);
GetEd(emu, &op2, &ea2, nextop);
printf("Op2 = %p globals=%p ", op2, emu->globals);
op2 = (reg32_t*)(((char*)op2) + (uintptr_t)emu->globals);
printf("=> op2 = %p\n", op2);
GetG(emu, &op1, nextop);
op1->dword[0] = xor32(emu, op1->dword[0], op2->dword[0]);
break;
@ -142,6 +140,11 @@ int Run(x86emu_t *emu)
emu->quit=1;
}
break;
case 0x74: /* JZ Ib */
tmp8s = Fetch8s(emu);
if(ACCESS_FLAG(F_ZF))
R_EIP += tmp8s;
break;
case 0x87: /* XCHG Ed,Gd */
nextop = Fetch8(emu);
@ -190,6 +193,9 @@ int Run(x86emu_t *emu)
case 0xBF:
emu->regs[opcode-0xB8].dword[0] = Fetch32(emu);
break;
case 0xC3: /* RET */
R_EIP = Pop(emu);
break;
case 0xC7: /* MOV Ed,Id */
nextop = Fetch8(emu);