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X86.cpp
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X86.cpp
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/*
* Project 64 - A Nintendo 64 emulator.
*
* (c) Copyright 2001 zilmar ([email protected]) and
* Jabo ([email protected]).
*
* pj64 homepage: www.pj64.net
*
* Permission to use, copy, modify and distribute Project64 in both binary and
* source form, for non-commercial purposes, is hereby granted without fee,
* providing that this license information and copyright notice appear with
* all copies and any derived work.
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event shall the authors be held liable for any damages
* arising from the use of this software.
*
* Project64 is freeware for PERSONAL USE only. Commercial users should
* seek permission of the copyright holders first. Commercial use includes
* charging money for Project64 or software derived from Project64.
*
* The copyright holders request that bug fixes and improvements to the code
* should be forwarded to them so if they want them.
*
*/
#include <windows.h>
#include <stdio.h>
#include "main.h"
#include "cpu.h"
#include "x86.h"
#include "debugger.h"
#define PUTDST8(dest,value) (*((BYTE *)(dest))=(BYTE)(value)); dest += 1;
#define PUTDST16(dest,value) (*((WORD *)(dest))=(WORD)(value)); dest += 2;
#define PUTDST32(dest,value) (*((DWORD *)(dest))=(DWORD)(value)); dest += 4;
void AdcX86regToVariable(int x86reg, void * Variable, char * VariableName) {
CPU_Message(" adc dword ptr [%s], %s",VariableName, x86_Name(x86reg));
switch (x86reg) {
case x86_EAX: PUTDST16(RecompPos,0x0511); break;
case x86_EBX: PUTDST16(RecompPos,0x1D11); break;
case x86_ECX: PUTDST16(RecompPos,0x0D11); break;
case x86_EDX: PUTDST16(RecompPos,0x1511); break;
case x86_ESI: PUTDST16(RecompPos,0x3511); break;
case x86_EDI: PUTDST16(RecompPos,0x3D11); break;
case x86_ESP: PUTDST16(RecompPos,0x2511); break;
case x86_EBP: PUTDST16(RecompPos,0x2D11); break;
default:
DisplayError("AddVariableToX86reg\nUnknown x86 Register");
}
PUTDST32(RecompPos,Variable);
}
void AdcConstToVariable(void *Variable, char *VariableName, BYTE Constant) {
CPU_Message(" adc dword ptr [%s], %Xh", VariableName, Constant);
PUTDST16(RecompPos,0x1583);
PUTDST32(RecompPos,Variable);
PUTDST8(RecompPos,Constant);
}
void AdcConstToX86Reg (int x86Reg, DWORD Const) {
CPU_Message(" adc %s, %Xh",x86_Name(x86Reg),Const);
if ((Const & 0xFFFFFF80) != 0 && (Const & 0xFFFFFF80) != 0xFFFFFF80) {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xD081); break;
case x86_EBX: PUTDST16(RecompPos,0xD381); break;
case x86_ECX: PUTDST16(RecompPos,0xD181); break;
case x86_EDX: PUTDST16(RecompPos,0xD281); break;
case x86_ESI: PUTDST16(RecompPos,0xD681); break;
case x86_EDI: PUTDST16(RecompPos,0xD781); break;
case x86_ESP: PUTDST16(RecompPos,0xD481); break;
case x86_EBP: PUTDST16(RecompPos,0xD581); break;
}
PUTDST32(RecompPos, Const);
} else {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xD083); break;
case x86_EBX: PUTDST16(RecompPos,0xD383); break;
case x86_ECX: PUTDST16(RecompPos,0xD183); break;
case x86_EDX: PUTDST16(RecompPos,0xD283); break;
case x86_ESI: PUTDST16(RecompPos,0xD683); break;
case x86_EDI: PUTDST16(RecompPos,0xD783); break;
case x86_ESP: PUTDST16(RecompPos,0xD483); break;
case x86_EBP: PUTDST16(RecompPos,0xD583); break;
}
PUTDST8(RecompPos, Const);
}
}
void AdcVariableToX86reg(int x86reg, void * Variable, char * VariableName) {
CPU_Message(" adc %s, dword ptr [%s]",x86_Name(x86reg),VariableName);
switch (x86reg) {
case x86_EAX: PUTDST16(RecompPos,0x0513); break;
case x86_EBX: PUTDST16(RecompPos,0x1D13); break;
case x86_ECX: PUTDST16(RecompPos,0x0D13); break;
case x86_EDX: PUTDST16(RecompPos,0x1513); break;
case x86_ESI: PUTDST16(RecompPos,0x3513); break;
case x86_EDI: PUTDST16(RecompPos,0x3D13); break;
case x86_ESP: PUTDST16(RecompPos,0x2513); break;
case x86_EBP: PUTDST16(RecompPos,0x2D13); break;
default:
DisplayError("AdcVariableToX86reg\nUnknown x86 Register");
}
PUTDST32(RecompPos,Variable);
}
void AdcX86RegToX86Reg(int Destination, int Source) {
WORD x86Command;
CPU_Message(" adc %s, %s",x86_Name(Destination),x86_Name(Source));
switch (Source) {
case x86_EAX: x86Command = 0x0013; break;
case x86_EBX: x86Command = 0x0313; break;
case x86_ECX: x86Command = 0x0113; break;
case x86_EDX: x86Command = 0x0213; break;
case x86_ESI: x86Command = 0x0613; break;
case x86_EDI: x86Command = 0x0713; break;
case x86_ESP: x86Command = 0x0413; break;
case x86_EBP: x86Command = 0x0513; break;
}
switch (Destination) {
case x86_EAX: x86Command += 0xC000; break;
case x86_EBX: x86Command += 0xD800; break;
case x86_ECX: x86Command += 0xC800; break;
case x86_EDX: x86Command += 0xD000; break;
case x86_ESI: x86Command += 0xF000; break;
case x86_EDI: x86Command += 0xF800; break;
case x86_ESP: x86Command += 0xE000; break;
case x86_EBP: x86Command += 0xE800; break;
}
PUTDST16(RecompPos,x86Command);
}
void AddConstToVariable (DWORD Const, void *Variable, char *VariableName) {
CPU_Message(" add dword ptr [%s], 0x%X",VariableName, Const);\
PUTDST16(RecompPos,0x0581);
PUTDST32(RecompPos,Variable);
PUTDST32(RecompPos,Const);
}
void AddConstToX86Reg (int x86Reg, DWORD Const) {
CPU_Message(" add %s, %Xh",x86_Name(x86Reg),Const);
if ((Const & 0xFFFFFF80) != 0 && (Const & 0xFFFFFF80) != 0xFFFFFF80) {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xC081); break;
case x86_EBX: PUTDST16(RecompPos,0xC381); break;
case x86_ECX: PUTDST16(RecompPos,0xC181); break;
case x86_EDX: PUTDST16(RecompPos,0xC281); break;
case x86_ESI: PUTDST16(RecompPos,0xC681); break;
case x86_EDI: PUTDST16(RecompPos,0xC781); break;
case x86_ESP: PUTDST16(RecompPos,0xC481); break;
case x86_EBP: PUTDST16(RecompPos,0xC581); break;
}
PUTDST32(RecompPos, Const);
} else {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xC083); break;
case x86_EBX: PUTDST16(RecompPos,0xC383); break;
case x86_ECX: PUTDST16(RecompPos,0xC183); break;
case x86_EDX: PUTDST16(RecompPos,0xC283); break;
case x86_ESI: PUTDST16(RecompPos,0xC683); break;
case x86_EDI: PUTDST16(RecompPos,0xC783); break;
case x86_ESP: PUTDST16(RecompPos,0xC483); break;
case x86_EBP: PUTDST16(RecompPos,0xC583); break;
}
PUTDST8(RecompPos, Const);
}
}
void AddVariableToX86reg(int x86reg, void * Variable, char * VariableName) {
CPU_Message(" add %s, dword ptr [%s]",x86_Name(x86reg),VariableName);
switch (x86reg) {
case x86_EAX: PUTDST16(RecompPos,0x0503); break;
case x86_EBX: PUTDST16(RecompPos,0x1D03); break;
case x86_ECX: PUTDST16(RecompPos,0x0D03); break;
case x86_EDX: PUTDST16(RecompPos,0x1503); break;
case x86_ESI: PUTDST16(RecompPos,0x3503); break;
case x86_EDI: PUTDST16(RecompPos,0x3D03); break;
case x86_ESP: PUTDST16(RecompPos,0x2503); break;
case x86_EBP: PUTDST16(RecompPos,0x2D03); break;
default:
DisplayError("AddVariableToX86reg\nUnknown x86 Register");
}
PUTDST32(RecompPos,Variable);
}
void AddX86regToVariable(int x86reg, void * Variable, char * VariableName) {
CPU_Message(" add dword ptr [%s], %s",VariableName, x86_Name(x86reg));
switch (x86reg) {
case x86_EAX: PUTDST16(RecompPos,0x0501); break;
case x86_EBX: PUTDST16(RecompPos,0x1D01); break;
case x86_ECX: PUTDST16(RecompPos,0x0D01); break;
case x86_EDX: PUTDST16(RecompPos,0x1501); break;
case x86_ESI: PUTDST16(RecompPos,0x3501); break;
case x86_EDI: PUTDST16(RecompPos,0x3D01); break;
case x86_ESP: PUTDST16(RecompPos,0x2501); break;
case x86_EBP: PUTDST16(RecompPos,0x2D01); break;
default:
DisplayError("AddVariableToX86reg\nUnknown x86 Register");
}
PUTDST32(RecompPos,Variable);
}
void AddX86RegToX86Reg(int Destination, int Source) {
WORD x86Command;
CPU_Message(" add %s, %s",x86_Name(Destination),x86_Name(Source));
switch (Source) {
case x86_EAX: x86Command = 0x0003; break;
case x86_EBX: x86Command = 0x0303; break;
case x86_ECX: x86Command = 0x0103; break;
case x86_EDX: x86Command = 0x0203; break;
case x86_ESI: x86Command = 0x0603; break;
case x86_EDI: x86Command = 0x0703; break;
case x86_ESP: x86Command = 0x0403; break;
case x86_EBP: x86Command = 0x0503; break;
}
switch (Destination) {
case x86_EAX: x86Command += 0xC000; break;
case x86_EBX: x86Command += 0xD800; break;
case x86_ECX: x86Command += 0xC800; break;
case x86_EDX: x86Command += 0xD000; break;
case x86_ESI: x86Command += 0xF000; break;
case x86_EDI: x86Command += 0xF800; break;
case x86_ESP: x86Command += 0xE000; break;
case x86_EBP: x86Command += 0xE800; break;
}
PUTDST16(RecompPos,x86Command);
}
void AndConstToVariable (DWORD Const, void *Variable, char *VariableName) {
CPU_Message(" and dword ptr [%s], 0x%X",VariableName, Const);\
PUTDST16(RecompPos,0x2581);
PUTDST32(RecompPos,Variable);
PUTDST32(RecompPos,Const);
}
void AndConstToX86Reg(int x86Reg, DWORD Const) {
CPU_Message(" and %s, %Xh",x86_Name(x86Reg),Const);
if ((Const & 0xFFFFFF80) != 0 && (Const & 0xFFFFFF80) != 0xFFFFFF80) {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xE081); break;
case x86_EBX: PUTDST16(RecompPos,0xE381); break;
case x86_ECX: PUTDST16(RecompPos,0xE181); break;
case x86_EDX: PUTDST16(RecompPos,0xE281); break;
case x86_ESI: PUTDST16(RecompPos,0xE681); break;
case x86_EDI: PUTDST16(RecompPos,0xE781); break;
case x86_ESP: PUTDST16(RecompPos,0xE481); break;
case x86_EBP: PUTDST16(RecompPos,0xE581); break;
}
PUTDST32(RecompPos, Const);
} else {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xE083); break;
case x86_EBX: PUTDST16(RecompPos,0xE383); break;
case x86_ECX: PUTDST16(RecompPos,0xE183); break;
case x86_EDX: PUTDST16(RecompPos,0xE283); break;
case x86_ESI: PUTDST16(RecompPos,0xE683); break;
case x86_EDI: PUTDST16(RecompPos,0xE783); break;
case x86_ESP: PUTDST16(RecompPos,0xE483); break;
case x86_EBP: PUTDST16(RecompPos,0xE583); break;
}
PUTDST8(RecompPos, Const);
}
}
void AndVariableDispToX86Reg(void *Variable, char *VariableName, int x86Reg, int AddrReg, int Multiplier) {
int x;
CPU_Message(" and %s, dword ptr [%s+%s*%i]",x86_Name(x86Reg),VariableName, x86_Name(AddrReg), Multiplier);
PUTDST8(RecompPos,0x23);
switch (x86Reg) {
case x86_EAX: PUTDST8(RecompPos,0x04); break;
case x86_EBX: PUTDST8(RecompPos,0x1C); break;
case x86_ECX: PUTDST8(RecompPos,0x0C); break;
case x86_EDX: PUTDST8(RecompPos,0x14); break;
case x86_ESI: PUTDST8(RecompPos,0x34); break;
case x86_EDI: PUTDST8(RecompPos,0x3C); break;
case x86_ESP: PUTDST8(RecompPos,0x24); break;
case x86_EBP: PUTDST8(RecompPos,0x2C); break;
}
/* put in shifter 2(01), 4(10), 8(11) */
switch (Multiplier) {
case 2: x = 0x40; break;
case 4: x = 0x80; break;
case 8: x = 0xC0; break;
default: DisplayError("And\nInvalid x86 multiplier");
}
/* format xx|000000 */
switch (AddrReg) {
case x86_EAX: PUTDST8(RecompPos,0x05|x); break;
case x86_EBX: PUTDST8(RecompPos,0x1D|x); break;
case x86_ECX: PUTDST8(RecompPos,0x0D|x); break;
case x86_EDX: PUTDST8(RecompPos,0x15|x); break;
case x86_ESI: PUTDST8(RecompPos,0x35|x); break;
case x86_EDI: PUTDST8(RecompPos,0x3D|x); break;
case x86_ESP: PUTDST8(RecompPos,0x25|x); break;
case x86_EBP: PUTDST8(RecompPos,0x2D|x); break;
}
PUTDST32(RecompPos,Variable);
}
void AndVariableToX86Reg(void * Variable, char * VariableName, int x86Reg) {
CPU_Message(" and %s, dword ptr [%s]",x86_Name(x86Reg),VariableName);
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0x0523); break;
case x86_EBX: PUTDST16(RecompPos,0x1D23); break;
case x86_ECX: PUTDST16(RecompPos,0x0D23); break;
case x86_EDX: PUTDST16(RecompPos,0x1523); break;
case x86_ESI: PUTDST16(RecompPos,0x3523); break;
case x86_EDI: PUTDST16(RecompPos,0x3D23); break;
case x86_ESP: PUTDST16(RecompPos,0x2523); break;
case x86_EBP: PUTDST16(RecompPos,0x2D23); break;
}
PUTDST32(RecompPos,Variable);
}
void AndX86RegToX86Reg(int Destination, int Source) {
WORD x86Command;
CPU_Message(" and %s, %s",x86_Name(Destination),x86_Name(Source));
switch (Destination) {
case x86_EAX: x86Command = 0x0021; break;
case x86_EBX: x86Command = 0x0321; break;
case x86_ECX: x86Command = 0x0121; break;
case x86_EDX: x86Command = 0x0221; break;
case x86_ESI: x86Command = 0x0621; break;
case x86_EDI: x86Command = 0x0721; break;
case x86_ESP: x86Command = 0x0421; break;
case x86_EBP: x86Command = 0x0521; break;
}
switch (Source) {
case x86_EAX: x86Command += 0xC000; break;
case x86_EBX: x86Command += 0xD800; break;
case x86_ECX: x86Command += 0xC800; break;
case x86_EDX: x86Command += 0xD000; break;
case x86_ESI: x86Command += 0xF000; break;
case x86_EDI: x86Command += 0xF800; break;
case x86_ESP: x86Command += 0xE000; break;
case x86_EBP: x86Command += 0xE800; break;
}
PUTDST16(RecompPos,x86Command);
}
void BreakPoint (void) {
CPU_Message(" int 3");
PUTDST8(RecompPos,0xCC);
}
void Call_Direct(void * FunctAddress, char * FunctName) {
CPU_Message(" call offset %s",FunctName);
PUTDST8(RecompPos,0xE8);
PUTDST32(RecompPos,(DWORD)FunctAddress-(DWORD)RecompPos - 4);
}
void Call_Indirect(void * FunctAddress, char * FunctName) {
CPU_Message(" call [%s]",FunctName);
PUTDST16(RecompPos,0x15FF);
PUTDST32(RecompPos,FunctAddress);
}
void CompConstToVariable(DWORD Const, void * Variable, char * VariableName) {
CPU_Message(" cmp dword ptr [%s], 0x%X",VariableName, Const);
PUTDST16(RecompPos,0x3D81);
PUTDST32(RecompPos,Variable);
PUTDST32(RecompPos,Const);
}
void CompConstToX86reg(int x86Reg, DWORD Const) {
CPU_Message(" cmp %s, %Xh",x86_Name(x86Reg),Const);
if ((Const & 0xFFFFFF80) != 0 && (Const & 0xFFFFFF80) != 0xFFFFFF80) {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xF881); break;
case x86_EBX: PUTDST16(RecompPos,0xFB81); break;
case x86_ECX: PUTDST16(RecompPos,0xF981); break;
case x86_EDX: PUTDST16(RecompPos,0xFA81); break;
case x86_ESI: PUTDST16(RecompPos,0xFE81); break;
case x86_EDI: PUTDST16(RecompPos,0xFF81); break;
case x86_ESP: PUTDST16(RecompPos,0xFC81); break;
case x86_EBP: PUTDST16(RecompPos,0xFD81); break;
default:
DisplayError("CompConstToX86reg\nUnknown x86 Register");
}
PUTDST32(RecompPos,Const);
} else {
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xF883); break;
case x86_EBX: PUTDST16(RecompPos,0xFB83); break;
case x86_ECX: PUTDST16(RecompPos,0xF983); break;
case x86_EDX: PUTDST16(RecompPos,0xFA83); break;
case x86_ESI: PUTDST16(RecompPos,0xFE83); break;
case x86_EDI: PUTDST16(RecompPos,0xFF83); break;
case x86_ESP: PUTDST16(RecompPos,0xFC83); break;
case x86_EBP: PUTDST16(RecompPos,0xFD83); break;
}
PUTDST8(RecompPos, Const);
}
}
void CompX86regToVariable(int x86Reg, void * Variable, char * VariableName) {
CPU_Message(" cmp %s, dword ptr [%s]",x86_Name(x86Reg),VariableName);
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0x053B); break;
case x86_EBX: PUTDST16(RecompPos,0x1D3B); break;
case x86_ECX: PUTDST16(RecompPos,0x0D3B); break;
case x86_EDX: PUTDST16(RecompPos,0x153B); break;
case x86_ESI: PUTDST16(RecompPos,0x353B); break;
case x86_EDI: PUTDST16(RecompPos,0x3D3B); break;
case x86_ESP: PUTDST16(RecompPos,0x253B); break;
case x86_EBP: PUTDST16(RecompPos,0x2D3B); break;
default:
DisplayError("Unknown x86 Register");
}
PUTDST32(RecompPos,Variable);
}
void CompVariableToX86reg(int x86Reg, void * Variable, char * VariableName) {
CPU_Message(" cmp dword ptr [%s], %s",VariableName, x86_Name(x86Reg));
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0x0539); break;
case x86_EBX: PUTDST16(RecompPos,0x1D39); break;
case x86_ECX: PUTDST16(RecompPos,0x0D39); break;
case x86_EDX: PUTDST16(RecompPos,0x1539); break;
case x86_ESI: PUTDST16(RecompPos,0x3539); break;
case x86_EDI: PUTDST16(RecompPos,0x3D39); break;
case x86_ESP: PUTDST16(RecompPos,0x2539); break;
case x86_EBP: PUTDST16(RecompPos,0x2D39); break;
default:
DisplayError("Unknown x86 Register");
}
PUTDST32(RecompPos,Variable);
}
void CompX86RegToX86Reg(int Destination, int Source) {
WORD x86Command;
CPU_Message(" cmp %s, %s",x86_Name(Destination),x86_Name(Source));
switch (Source) {
case x86_EAX: x86Command = 0x003B; break;
case x86_EBX: x86Command = 0x033B; break;
case x86_ECX: x86Command = 0x013B; break;
case x86_EDX: x86Command = 0x023B; break;
case x86_ESI: x86Command = 0x063B; break;
case x86_EDI: x86Command = 0x073B; break;
case x86_ESP: x86Command = 0x043B; break;
case x86_EBP: x86Command = 0x053B; break;
}
switch (Destination) {
case x86_EAX: x86Command += 0xC000; break;
case x86_EBX: x86Command += 0xD800; break;
case x86_ECX: x86Command += 0xC800; break;
case x86_EDX: x86Command += 0xD000; break;
case x86_ESI: x86Command += 0xF000; break;
case x86_EDI: x86Command += 0xF800; break;
case x86_ESP: x86Command += 0xE000; break;
case x86_EBP: x86Command += 0xE800; break;
}
PUTDST16(RecompPos,x86Command);
}
void DecX86reg(int x86Reg) {
CPU_Message(" dec %s",x86_Name(x86Reg));
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xC8FF); break;
case x86_EBX: PUTDST16(RecompPos,0xCBFF); break;
case x86_ECX: PUTDST16(RecompPos,0xC9FF); break;
case x86_EDX: PUTDST16(RecompPos,0xCAFF); break;
case x86_ESI: PUTDST16(RecompPos,0xCEFF); break;
case x86_EDI: PUTDST16(RecompPos,0xCFFF); break;
case x86_ESP: PUTDST8 (RecompPos,0x4C); break;
case x86_EBP: PUTDST8 (RecompPos,0x4D); break;
default:
DisplayError("DecX86reg\nUnknown x86 Register");
}
}
void DivX86reg(int x86reg) {
CPU_Message(" div %s",x86_Name(x86reg));
switch (x86reg) {
case x86_EBX: PUTDST16(RecompPos,0xf3F7); break;
case x86_ECX: PUTDST16(RecompPos,0xf1F7); break;
case x86_EDX: PUTDST16(RecompPos,0xf2F7); break;
case x86_ESI: PUTDST16(RecompPos,0xf6F7); break;
case x86_EDI: PUTDST16(RecompPos,0xf7F7); break;
case x86_ESP: PUTDST16(RecompPos,0xf4F7); break;
case x86_EBP: PUTDST16(RecompPos,0xf5F7); break;
default:
DisplayError("divX86reg\nUnknown x86 Register");
}
}
void idivX86reg(int x86reg) {
CPU_Message(" idiv %s",x86_Name(x86reg));\
switch (x86reg) {
case x86_EBX: PUTDST16(RecompPos,0xfbF7); break;
case x86_ECX: PUTDST16(RecompPos,0xf9F7); break;
case x86_EDX: PUTDST16(RecompPos,0xfaF7); break;
case x86_ESI: PUTDST16(RecompPos,0xfeF7); break;
case x86_EDI: PUTDST16(RecompPos,0xffF7); break;
case x86_ESP: PUTDST16(RecompPos,0xfcF7); break;
case x86_EBP: PUTDST16(RecompPos,0xfdF7); break;
default:
DisplayError("idivX86reg\nUnknown x86 Register");
}
}
void imulX86reg(int x86reg) {
CPU_Message(" imul %s",x86_Name(x86reg));
switch (x86reg) {
case x86_EAX: PUTDST16(RecompPos,0xE8F7); break;
case x86_EBX: PUTDST16(RecompPos,0xEBF7); break;
case x86_ECX: PUTDST16(RecompPos,0xE9F7); break;
case x86_EDX: PUTDST16(RecompPos,0xEAF7); break;
case x86_ESI: PUTDST16(RecompPos,0xEEF7); break;
case x86_EDI: PUTDST16(RecompPos,0xEFF7); break;
case x86_ESP: PUTDST16(RecompPos,0xECF7); break;
case x86_EBP: PUTDST16(RecompPos,0xEDF7); break;
default:
DisplayError("imulX86reg\nUnknown x86 Register");
}
}
void IncX86reg(int x86Reg) {
CPU_Message(" inc %s",x86_Name(x86Reg));
switch (x86Reg) {
case x86_EAX: PUTDST16(RecompPos,0xC0FF); break;
case x86_EBX: PUTDST16(RecompPos,0xC3FF); break;
case x86_ECX: PUTDST16(RecompPos,0xC1FF); break;
case x86_EDX: PUTDST16(RecompPos,0xC2FF); break;
case x86_ESI: PUTDST16(RecompPos,0xC6FF); break;
case x86_EDI: PUTDST16(RecompPos,0xC7FF); break;
case x86_ESP: PUTDST8 (RecompPos,0x44); break;
case x86_EBP: PUTDST8 (RecompPos,0x45); break;
default:
DisplayError("IncX86reg\nUnknown x86 Register");
}
}
void JaeLabel8(char * Label, BYTE Value) {
CPU_Message(" jae $%s",Label);
PUTDST8(RecompPos,0x73);
PUTDST8(RecompPos,Value);
}
void JaeLabel32(char * Label,DWORD Value) {
CPU_Message(" jae $%s",Label);
PUTDST16(RecompPos,0x830F);
PUTDST32(RecompPos,Value);
}
void JaLabel8(char * Label, BYTE Value) {
CPU_Message(" ja $%s",Label);
PUTDST8(RecompPos,0x77);
PUTDST8(RecompPos,Value);
}
void JaLabel32(char * Label,DWORD Value) {
CPU_Message(" ja $%s",Label);
PUTDST16(RecompPos,0x870F);
PUTDST32(RecompPos,Value);
}
void JbLabel8(char * Label, BYTE Value) {
CPU_Message(" jb $%s",Label);
PUTDST8(RecompPos,0x72);
PUTDST8(RecompPos,Value);
}
void JbLabel32(char * Label,DWORD Value) {
CPU_Message(" jb $%s",Label);
PUTDST16(RecompPos,0x820F);
PUTDST32(RecompPos,Value);
}
void JecxzLabel8(char * Label, BYTE Value) {
CPU_Message(" jecxz $%s",Label);
PUTDST8(RecompPos,0xE3);
PUTDST8(RecompPos,Value);
}
void JeLabel8(char * Label, BYTE Value) {
CPU_Message(" je $%s",Label);
PUTDST8(RecompPos,0x74);
PUTDST8(RecompPos,Value);
}
void JeLabel32(char * Label,DWORD Value) {
CPU_Message(" je $%s",Label);
PUTDST16(RecompPos,0x840F);
PUTDST32(RecompPos,Value);
}
void JgeLabel32(char * Label,DWORD Value) {
CPU_Message(" jge $%s",Label);
PUTDST16(RecompPos,0x8D0F);
PUTDST32(RecompPos,Value);
}
void JgLabel8(char * Label, BYTE Value) {
CPU_Message(" jg $%s",Label);
PUTDST8(RecompPos,0x7F);
PUTDST8(RecompPos,Value);
}
void JgLabel32(char * Label,DWORD Value) {
CPU_Message(" jg $%s",Label);
PUTDST16(RecompPos,0x8F0F);
PUTDST32(RecompPos,Value);
}
void JleLabel8(char * Label, BYTE Value) {
CPU_Message(" jle $%s",Label);
PUTDST8(RecompPos,0x7E);
PUTDST8(RecompPos,Value);
}
void JleLabel32(char * Label,DWORD Value) {
CPU_Message(" jle $%s",Label);
PUTDST16(RecompPos,0x8E0F);
PUTDST32(RecompPos,Value);
}
void JlLabel8(char * Label, BYTE Value) {
CPU_Message(" jl $%s",Label);
PUTDST8(RecompPos,0x7C);
PUTDST8(RecompPos,Value);
}
void JlLabel32(char * Label,DWORD Value) {
CPU_Message(" jl $%s",Label);
PUTDST16(RecompPos,0x8C0F);
PUTDST32(RecompPos,Value);
}
void JmpDirectReg( int x86reg ) {
CPU_Message(" jmp %s",x86_Name(x86reg));
switch (x86reg) {
case x86_EAX: PUTDST16(RecompPos,0xE0ff); break;
case x86_EBX: PUTDST16(RecompPos,0xE3ff); break;
case x86_ECX: PUTDST16(RecompPos,0xE1ff); break;
case x86_EDX: PUTDST16(RecompPos,0xE2ff); break;
case x86_ESI: PUTDST16(RecompPos,0xE6ff); break;
case x86_EDI: PUTDST16(RecompPos,0xE7ff); break;
default:
DisplayError("JmpDirectReg\nUnknown x86 Register");
break;
}
}
void JmpIndirectLabel32(char * Label,DWORD location) {
CPU_Message(" jmp dword ptr [%s]", Label);
PUTDST16(RecompPos, 0x25ff);
PUTDST32(RecompPos, location);
}
void JmpIndirectReg( int x86reg ) {
CPU_Message(" jmp dword ptr [%s]",x86_Name(x86reg));
switch (x86reg) {
case x86_EAX: PUTDST16(RecompPos,0x20ff); break;
case x86_EBX: PUTDST16(RecompPos,0x23ff); break;
case x86_ECX: PUTDST16(RecompPos,0x21ff); break;
case x86_EDX: PUTDST16(RecompPos,0x22ff); break;
case x86_ESI: PUTDST16(RecompPos,0x26ff); break;
case x86_EDI: PUTDST16(RecompPos,0x27ff); break;
case x86_ESP:
PUTDST8(RecompPos,0xff);
PUTDST16(RecompPos,0x2434);
/* _asm int 3 */
break;
case x86_EBP:
PUTDST8(RecompPos,0xff);
PUTDST16(RecompPos,0x0065);
/* _asm int 3 */
break;
}
}
void JmpLabel8(char * Label, BYTE Value) {
CPU_Message(" jmp $%s",Label);
PUTDST8(RecompPos,0xEB);
PUTDST8(RecompPos,Value);
}
void JmpLabel32(char * Label, DWORD Value) {
CPU_Message(" jmp $%s",Label);
PUTDST8(RecompPos,0xE9);
PUTDST32(RecompPos,Value);
}
void JneLabel8(char * Label, BYTE Value) {
CPU_Message(" jne $%s",Label);
PUTDST8(RecompPos,0x75);
PUTDST8(RecompPos,Value);
}
void JneLabel32(char *Label, DWORD Value) {
CPU_Message(" jne $%s",Label);
PUTDST16(RecompPos,0x850F);
PUTDST32(RecompPos,Value);
}
void JnsLabel8(char * Label, BYTE Value) {
CPU_Message(" jns $%s",Label);
PUTDST8(RecompPos,0x79);
PUTDST8(RecompPos,Value);
}
void JnsLabel32(char *Label, DWORD Value) {
CPU_Message(" jns $%s",Label);
PUTDST16(RecompPos,0x890F);
PUTDST32(RecompPos,Value);
}
void JsLabel32(char *Label, DWORD Value) {
CPU_Message(" js $%s",Label);
PUTDST16(RecompPos,0x880F);
PUTDST32(RecompPos,Value);
}
void LeaRegReg(int x86RegDest, int x86RegSrc, int multiplier) {
int s;
CPU_Message(" lea %s, [%s*%i]", x86_Name(x86RegDest), x86_Name(x86RegSrc), multiplier);
PUTDST8(RecompPos,0x8D);
switch (x86RegDest) {
case x86_EAX: PUTDST8(RecompPos,0x04); break;
case x86_EBX: PUTDST8(RecompPos,0x1C); break;
case x86_ECX: PUTDST8(RecompPos,0x0C); break;
case x86_EDX: PUTDST8(RecompPos,0x14); break;
case x86_ESI: PUTDST8(RecompPos,0x34); break;
case x86_EDI: PUTDST8(RecompPos,0x3C); break;
case x86_ESP: PUTDST8(RecompPos,0x24); break;
case x86_EBP: PUTDST8(RecompPos,0x2C); break;
default:
DisplayError("LEA\nUnknown x86 Register");
}
/* put in shifter 2(01), 4(10), 8(11) */
switch(multiplier) {
case 2: s = 0x40; break;
case 4: s = 0x80; break;
case 8: s = 0xC0; break;
default:
DisplayError("LEA\nInvalid x86 multiplier");
}
/* format ss|000000 */
switch (x86RegSrc) {
case x86_EAX: PUTDST8(RecompPos,0x05|s); break;
case x86_EBX: PUTDST8(RecompPos,0x1D|s); break;
case x86_ECX: PUTDST8(RecompPos,0x0D|s); break;
case x86_EDX: PUTDST8(RecompPos,0x15|s); break;
case x86_ESI: PUTDST8(RecompPos,0x35|s); break;
case x86_EDI: PUTDST8(RecompPos,0x3D|s); break;
case x86_EBP: PUTDST8(RecompPos,0x2D|s); break;
case x86_ESP:
DisplayError("LEA\nESP is invalid"); break;
default:
DisplayError("LEA\nUnknown x86 Register");
}
PUTDST32(RecompPos,0x00000000);
}
void LeaSourceAndOffset(int x86DestReg, int x86SourceReg, int offset) {
WORD x86Command;
CPU_Message(" lea %s, [%s + %0Xh]",x86_Name(x86DestReg),x86_Name(x86SourceReg),offset);
// if ((offset & 0xFFFFFF80) != 0 && (offset & 0xFFFFFF80) != 0xFFFFFF80) {
if (1) {
switch (x86DestReg) {
case x86_EAX: x86Command = 0x808D; break;
case x86_EBX: x86Command = 0x988D; break;
case x86_ECX: x86Command = 0x888D; break;
case x86_EDX: x86Command = 0x908D; break;
case x86_ESI: x86Command = 0xB08D; break;
case x86_EDI: x86Command = 0xB88D; break;
case x86_ESP: x86Command = 0xA08D; break;
case x86_EBP: x86Command = 0xA88D; break;
default:
DisplayError("LeaSourceAndOffset\nUnknown x86 Register");
}
switch (x86SourceReg) {
case x86_EAX: x86Command += 0x0000; break;
case x86_EBX: x86Command += 0x0300; break;
case x86_ECX: x86Command += 0x0100; break;
case x86_EDX: x86Command += 0x0200; break;
case x86_ESI: x86Command += 0x0600; break;
case x86_EDI: x86Command += 0x0700; break;
case x86_ESP: x86Command += 0x0400; break;
case x86_EBP: x86Command += 0x0500; break;
default:
DisplayError("LeaSourceAndOffset\nUnknown x86 Register");
}
PUTDST16(RecompPos,x86Command);
PUTDST32(RecompPos,offset);
} else {
switch (x86DestReg) {
case x86_EAX: x86Command = 0x408D; break;
case x86_EBX: x86Command = 0x588D; break;
case x86_ECX: x86Command = 0x488D; break;
case x86_EDX: x86Command = 0x508D; break;
case x86_ESI: x86Command = 0x708D; break;
case x86_EDI: x86Command = 0x788D; break;
case x86_ESP: x86Command = 0x608D; break;
case x86_EBP: x86Command = 0x688D; break;
default:
DisplayError("LeaSourceAndOffset\nUnknown x86 Register");
}
switch (x86SourceReg) {
case x86_EAX: x86Command += 0x0000; break;
case x86_EBX: x86Command += 0x0300; break;
case x86_ECX: x86Command += 0x0100; break;
case x86_EDX: x86Command += 0x0200; break;
case x86_ESI: x86Command += 0x0600; break;
case x86_EDI: x86Command += 0x0700; break;
case x86_ESP: x86Command += 0x0400; break;
case x86_EBP: x86Command += 0x0500; break;
default:
DisplayError("LeaSourceAndOffset\nUnknown x86 Register");
}
PUTDST16(RecompPos,x86Command);
PUTDST8(RecompPos,offset);
}
}
void MoveConstByteToN64Mem(BYTE Const, int AddrReg) {
CPU_Message(" mov byte ptr [%s+N64mem], %Xh",x86_Name(AddrReg),Const);
switch (AddrReg) {
case x86_EAX: PUTDST16(RecompPos,0x80C6); break;
case x86_EBX: PUTDST16(RecompPos,0x83C6); break;
case x86_ECX: PUTDST16(RecompPos,0x81C6); break;
case x86_EDX: PUTDST16(RecompPos,0x82C6); break;
case x86_ESI: PUTDST16(RecompPos,0x86C6); break;
case x86_EDI: PUTDST16(RecompPos,0x87C6); break;
case x86_ESP: PUTDST16(RecompPos,0x84C6); break;
case x86_EBP: PUTDST16(RecompPos,0x85C6); break;
default:
DisplayError("MoveConstByteToN64Mem\nUnknown x86 Register");
}
PUTDST32(RecompPos,N64MEM);
PUTDST8(RecompPos,Const);
}
void MoveConstByteToVariable (BYTE Const,void *Variable, char *VariableName) {
CPU_Message(" mov byte ptr [%s], %Xh",VariableName,Const);
PUTDST16(RecompPos,0x05C6);
PUTDST32(RecompPos,Variable);
PUTDST8(RecompPos,Const);
}
void MoveConstHalfToN64Mem(WORD Const, int AddrReg) {
CPU_Message(" mov word ptr [%s+N64mem], %Xh",x86_Name(AddrReg),Const);
PUTDST8(RecompPos,0x66);
switch (AddrReg) {
case x86_EAX: PUTDST16(RecompPos,0x80C7); break;
case x86_EBX: PUTDST16(RecompPos,0x83C7); break;
case x86_ECX: PUTDST16(RecompPos,0x81C7); break;
case x86_EDX: PUTDST16(RecompPos,0x82C7); break;
case x86_ESI: PUTDST16(RecompPos,0x86C7); break;
case x86_EDI: PUTDST16(RecompPos,0x87C7); break;
case x86_ESP: PUTDST16(RecompPos,0x84C7); break;
case x86_EBP: PUTDST16(RecompPos,0x85C7); break;
default:
DisplayError("MoveConstToN64Mem\nUnknown x86 Register");
}
PUTDST32(RecompPos,N64MEM);
PUTDST16(RecompPos,Const);
}
void MoveConstHalfToVariable (WORD Const,void *Variable, char *VariableName) {
CPU_Message(" mov word ptr [%s], %Xh",VariableName,Const);
PUTDST8(RecompPos,0x66);
PUTDST16(RecompPos,0x05C7);
PUTDST32(RecompPos,Variable);
PUTDST16(RecompPos,Const);
}
void MoveConstHalfToX86regPointer(WORD Const, int AddrReg1, int AddrReg2) {
BYTE Param;
CPU_Message(" mov word ptr [%s+%s],%Xh",x86_Name(AddrReg1), x86_Name(AddrReg2), Const);
PUTDST8(RecompPos,0x66);
PUTDST16(RecompPos,0x04C7);
switch (AddrReg1) {
case x86_EAX: Param = 0x00; break;
case x86_EBX: Param = 0x03; break;
case x86_ECX: Param = 0x01; break;
case x86_EDX: Param = 0x02; break;
case x86_ESI: Param = 0x06; break;
case x86_EDI: Param = 0x07; break;
default:
DisplayError("MoveConstToX86regPointer\nUnhandled x86 Register");
}
switch (AddrReg2) {
case x86_EAX: Param += 0x00; break;
case x86_EBX: Param += 0x18; break;
case x86_ECX: Param += 0x08; break;
case x86_EDX: Param += 0x10; break;
case x86_ESI: Param += 0x30; break;
case x86_EDI: Param += 0x38; break;
case x86_ESP: Param += 0x20; break;
case x86_EBP: Param += 0x28; break;
default:
DisplayError("MoveConstToX86regPointer\nUnhandled x86 Register");
}
PUTDST8(RecompPos,Param);
PUTDST16(RecompPos,Const);
}
void MoveConstToMemoryDisp (DWORD Const, int AddrReg, DWORD Disp) {
CPU_Message(" mov dword ptr [%s+%Xh], %Xh",x86_Name(AddrReg),Disp,Const);
switch (AddrReg) {
case x86_EAX: PUTDST16(RecompPos,0x80C7); break;
case x86_EBX: PUTDST16(RecompPos,0x83C7); break;
case x86_ECX: PUTDST16(RecompPos,0x81C7); break;
case x86_EDX: PUTDST16(RecompPos,0x82C7); break;
case x86_ESI: PUTDST16(RecompPos,0x86C7); break;
case x86_EDI: PUTDST16(RecompPos,0x87C7); break;
case x86_ESP: PUTDST16(RecompPos,0x84C7); break;
case x86_EBP: PUTDST16(RecompPos,0x85C7); break;
default:
DisplayError("MoveConstToN64Mem\nUnknown x86 Register");
}
PUTDST32(RecompPos,Disp);
PUTDST32(RecompPos,Const);
}
void MoveConstToN64Mem(DWORD Const, int AddrReg) {
CPU_Message(" mov dword ptr [%s+N64mem], %Xh",x86_Name(AddrReg),Const);
switch (AddrReg) {
case x86_EAX: PUTDST16(RecompPos,0x80C7); break;
case x86_EBX: PUTDST16(RecompPos,0x83C7); break;
case x86_ECX: PUTDST16(RecompPos,0x81C7); break;
case x86_EDX: PUTDST16(RecompPos,0x82C7); break;
case x86_ESI: PUTDST16(RecompPos,0x86C7); break;
case x86_EDI: PUTDST16(RecompPos,0x87C7); break;
case x86_ESP: PUTDST16(RecompPos,0x84C7); break;
case x86_EBP: PUTDST16(RecompPos,0x85C7); break;
default:
DisplayError("MoveConstToN64Mem\nUnknown x86 Register");
}
PUTDST32(RecompPos,N64MEM);
PUTDST32(RecompPos,Const);
}
void MoveConstToN64MemDisp (DWORD Const, int AddrReg, BYTE Disp) {
CPU_Message(" mov dword ptr [%s+N64mem+%Xh], %Xh",x86_Name(AddrReg),Const,Disp);
switch (AddrReg) {
case x86_EAX: PUTDST16(RecompPos,0x80C7); break;
case x86_EBX: PUTDST16(RecompPos,0x83C7); break;
case x86_ECX: PUTDST16(RecompPos,0x81C7); break;
case x86_EDX: PUTDST16(RecompPos,0x82C7); break;
case x86_ESI: PUTDST16(RecompPos,0x86C7); break;
case x86_EDI: PUTDST16(RecompPos,0x87C7); break;
case x86_ESP: PUTDST16(RecompPos,0x84C7); break;
case x86_EBP: PUTDST16(RecompPos,0x85C7); break;
default:
DisplayError("MoveConstToN64Mem\nUnknown x86 Register");
}
PUTDST32(RecompPos,N64MEM + Disp);
PUTDST32(RecompPos,Const);
}
void MoveConstToVariable (DWORD Const,void *Variable, char *VariableName) {
CPU_Message(" mov dword ptr [%s], %Xh",VariableName,Const);
PUTDST16(RecompPos,0x05C7);
PUTDST32(RecompPos,Variable);
PUTDST32(RecompPos,Const);
}
void MoveConstToX86Pointer(DWORD Const, int X86Pointer) {
WORD x86Command;
CPU_Message(" mov dword ptr [%s], %Xh",x86_Name(X86Pointer),Const);
switch (X86Pointer) {
case x86_EAX: x86Command = 0x00C7; break;
case x86_EBX: x86Command = 0x03C7; break;
case x86_ECX: x86Command = 0x01C7; break;
case x86_EDX: x86Command = 0x02C7; break;
case x86_ESI: x86Command = 0x06C7; break;
case x86_EDI: x86Command = 0x07C7; break;
}
PUTDST16(RecompPos,x86Command);
PUTDST32(RecompPos,Const);
}