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sa1cpuops.cpp
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sa1cpuops.cpp
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/*
* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
*
* (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
* Jerremy Koot (jkoot@snes9x.com)
*
* Super FX C emulator code
* (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
* Gary Henderson.
* Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
*
* DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
* C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
* C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
*
* DOS port code contains the works of other authors. See headers in
* individual files.
*
* Snes9x homepage: http://www.snes9x.com
*
* Permission to use, copy, modify and distribute Snes9x 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.
*
* Snes9x is freeware for PERSONAL USE only. Commercial users should
* seek permission of the copyright holders first. Commercial use includes
* charging money for Snes9x or software derived from Snes9x.
*
* The copyright holders request that bug fixes and improvements to the code
* should be forwarded to them so everyone can benefit from the modifications
* in future versions.
*
* Super NES and Super Nintendo Entertainment System are trademarks of
* Nintendo Co., Limited and its subsidiary companies.
*/
/**********************************************************************************************/
/* CPU-S9xOpcodes.CPP */
/* This file contains all the opcodes */
/**********************************************************************************************/
// optimized by ruka.
#include "snes9x.h"
#include "memmap.h"
#include "debug.h"
#include "missing.h"
#include "apu.h"
#include "sa1.h"
#include "cpuexec.h"
#include "cpuaddr.h"
#include "cpuops.h"
#include "cpumacro.h"
#include "apu.h"
#ifdef SA1_OPCODES
#define S9xFixCyclesDecimal()
#else
#define S9xFixCyclesDecimal()
//#define S9xFixCyclesDecimal() S9xFixCycles();
#endif
/* ADC *************************************************************************************** */
static void Op69M1 (void)
{
long OpAddress = Immediate8 ();
ADC8 (OpAddress);
}
static void Op69M0 (void)
{
long OpAddress = Immediate16 ();
ADC16 (OpAddress);
}
static void Op65M1 (void)
{
long OpAddress = Direct();
ADC8 (OpAddress);
}
static void Op65M0 (void)
{
long OpAddress = Direct();
ADC16 (OpAddress);
}
static void Op75M1 (void)
{
long OpAddress = DirectIndexedX();
ADC8 (OpAddress);
}
static void Op75M0 (void)
{
long OpAddress = DirectIndexedX();
ADC16 (OpAddress);
}
static void Op72M1 (void)
{
long OpAddress = DirectIndirect();
ADC8 (OpAddress);
}
static void Op72M0 (void)
{
long OpAddress = DirectIndirect();
ADC16 (OpAddress);
}
static void Op61M1 (void)
{
long OpAddress = DirectIndexedIndirect();
ADC8 (OpAddress);
}
static void Op61M0 (void)
{
long OpAddress = DirectIndexedIndirect();
ADC16 (OpAddress);
}
static void Op71M1 (void)
{
long OpAddress = DirectIndirectIndexed();
ADC8 (OpAddress);
}
static void Op71M0 (void)
{
long OpAddress = DirectIndirectIndexed();
ADC16 (OpAddress);
}
static void Op67M1 (void)
{
long OpAddress = DirectIndirectLong();
ADC8 (OpAddress);
}
static void Op67M0 (void)
{
long OpAddress = DirectIndirectLong();
ADC16 (OpAddress);
}
static void Op77M1 (void)
{
long OpAddress = DirectIndirectIndexedLong();
ADC8 (OpAddress);
}
static void Op77M0 (void)
{
long OpAddress = DirectIndirectIndexedLong();
ADC16 (OpAddress);
}
static void Op6DM1 (void)
{
long OpAddress = Absolute();
ADC8 (OpAddress);
}
static void Op6DM0 (void)
{
long OpAddress = Absolute();
ADC16 (OpAddress);
}
static void Op7DM1 (void)
{
long OpAddress = AbsoluteIndexedX();
ADC8 (OpAddress);
}
static void Op7DM0 (void)
{
long OpAddress = AbsoluteIndexedX();
ADC16 (OpAddress);
}
static void Op79M1 (void)
{
long OpAddress = AbsoluteIndexedY();
ADC8 (OpAddress);
}
static void Op79M0 (void)
{
long OpAddress = AbsoluteIndexedY();
ADC16 (OpAddress);
}
static void Op6FM1 (void)
{
long OpAddress = AbsoluteLong();
ADC8 (OpAddress);
}
static void Op6FM0 (void)
{
long OpAddress = AbsoluteLong();
ADC16 (OpAddress);
}
static void Op7FM1 (void)
{
long OpAddress = AbsoluteLongIndexedX();
ADC8 (OpAddress);
}
static void Op7FM0 (void)
{
long OpAddress = AbsoluteLongIndexedX();
ADC16 (OpAddress);
}
static void Op63M1 (void)
{
long OpAddress = StackRelative();
ADC8 (OpAddress);
}
static void Op63M0 (void)
{
long OpAddress = StackRelative();
ADC16 (OpAddress);
}
static void Op73M1 (void)
{
long OpAddress = StackRelativeIndirectIndexed();
ADC8 (OpAddress);
}
static void Op73M0 (void)
{
long OpAddress = StackRelativeIndirectIndexed();
ADC16 (OpAddress);
}
/**********************************************************************************************/
/* AND *************************************************************************************** */
static void Op29M1 (void)
{
CPUPack.Registers.AL &= *CPUPack.CPU.PC++;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeed;
#endif
SetZN8 (CPUPack.Registers.AL);
}
static void Op29M0 (void)
{
#ifdef FAST_LSB_WORD_ACCESS
CPUPack.Registers.A.W &= *(uint16 *) CPUPack.CPU.PC;
#else
CPUPack.Registers.A.W &= *CPUPack.CPU.PC + (*(CPUPack.CPU.PC + 1) << 8);
#endif
CPUPack.CPU.PC += 2;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeedx2;
#endif
SetZN16 (CPUPack.Registers.A.W);
}
static void Op25M1 (void)
{
long OpAddress = Direct();
AND8 (OpAddress);
}
static void Op25M0 (void)
{
long OpAddress = Direct();
AND16 (OpAddress);
}
static void Op35M1 (void)
{
long OpAddress = DirectIndexedX();
AND8 (OpAddress);
}
static void Op35M0 (void)
{
long OpAddress = DirectIndexedX();
AND16 (OpAddress);
}
static void Op32M1 (void)
{
long OpAddress = DirectIndirect();
AND8 (OpAddress);
}
static void Op32M0 (void)
{
long OpAddress = DirectIndirect();
AND16 (OpAddress);
}
static void Op21M1 (void)
{
long OpAddress = DirectIndexedIndirect();
AND8 (OpAddress);
}
static void Op21M0 (void)
{
long OpAddress = DirectIndexedIndirect();
AND16 (OpAddress);
}
static void Op31M1 (void)
{
long OpAddress = DirectIndirectIndexed();
AND8 (OpAddress);
}
static void Op31M0 (void)
{
long OpAddress = DirectIndirectIndexed();
AND16 (OpAddress);
}
static void Op27M1 (void)
{
long OpAddress = DirectIndirectLong();
AND8 (OpAddress);
}
static void Op27M0 (void)
{
long OpAddress = DirectIndirectLong();
AND16 (OpAddress);
}
static void Op37M1 (void)
{
long OpAddress = DirectIndirectIndexedLong();
AND8 (OpAddress);
}
static void Op37M0 (void)
{
long OpAddress = DirectIndirectIndexedLong();
AND16 (OpAddress);
}
static void Op2DM1 (void)
{
long OpAddress = Absolute();
AND8 (OpAddress);
}
static void Op2DM0 (void)
{
long OpAddress = Absolute();
AND16 (OpAddress);
}
static void Op3DM1 (void)
{
long OpAddress = AbsoluteIndexedX();
AND8 (OpAddress);
}
static void Op3DM0 (void)
{
long OpAddress = AbsoluteIndexedX();
AND16 (OpAddress);
}
static void Op39M1 (void)
{
long OpAddress = AbsoluteIndexedY();
AND8 (OpAddress);
}
static void Op39M0 (void)
{
long OpAddress = AbsoluteIndexedY();
AND16 (OpAddress);
}
static void Op2FM1 (void)
{
long OpAddress = AbsoluteLong();
AND8 (OpAddress);
}
static void Op2FM0 (void)
{
long OpAddress = AbsoluteLong();
AND16 (OpAddress);
}
static void Op3FM1 (void)
{
long OpAddress = AbsoluteLongIndexedX();
AND8 (OpAddress);
}
static void Op3FM0 (void)
{
long OpAddress = AbsoluteLongIndexedX();
AND16 (OpAddress);
}
static void Op23M1 (void)
{
long OpAddress = StackRelative();
AND8 (OpAddress);
}
static void Op23M0 (void)
{
long OpAddress = StackRelative();
AND16 (OpAddress);
}
static void Op33M1 (void)
{
long OpAddress = StackRelativeIndirectIndexed();
AND8 (OpAddress);
}
static void Op33M0 (void)
{
long OpAddress = StackRelativeIndirectIndexed();
AND16 (OpAddress);
}
/**********************************************************************************************/
/* ASL *************************************************************************************** */
static void Op0AM1 (void)
{
A_ASL8 ();
}
static void Op0AM0 (void)
{
A_ASL16 ();
}
static void Op06M1 (void)
{
long OpAddress = Direct();
ASL8 (OpAddress);
}
static void Op06M0 (void)
{
long OpAddress = Direct();
ASL16 (OpAddress);
}
static void Op16M1 (void)
{
long OpAddress = DirectIndexedX();
ASL8 (OpAddress);
}
static void Op16M0 (void)
{
long OpAddress = DirectIndexedX();
ASL16 (OpAddress);
}
static void Op0EM1 (void)
{
long OpAddress = Absolute();
ASL8 (OpAddress);
}
static void Op0EM0 (void)
{
long OpAddress = Absolute();
ASL16 (OpAddress);
}
static void Op1EM1 (void)
{
long OpAddress = AbsoluteIndexedX();
ASL8 (OpAddress);
}
static void Op1EM0 (void)
{
long OpAddress = AbsoluteIndexedX();
ASL16 (OpAddress);
}
/**********************************************************************************************/
/* BIT *************************************************************************************** */
static void Op89M1 (void)
{
CPUPack.ICPU._Zero = CPUPack.Registers.AL & *CPUPack.CPU.PC++;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeed;
#endif
}
static void Op89M0 (void)
{
#ifdef FAST_LSB_WORD_ACCESS
CPUPack.ICPU._Zero = (CPUPack.Registers.A.W & *(uint16 *) CPUPack.CPU.PC) != 0;
#else
CPUPack.ICPU._Zero = (CPUPack.Registers.A.W & (*CPUPack.CPU.PC + (*(CPUPack.CPU.PC + 1) << 8))) != 0;
#endif
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeedx2;
#endif
CPUPack.CPU.PC += 2;
}
static void Op24M1 (void)
{
long OpAddress = Direct();
BIT8 (OpAddress);
}
static void Op24M0 (void)
{
long OpAddress = Direct();
BIT16 (OpAddress);
}
static void Op34M1 (void)
{
long OpAddress = DirectIndexedX();
BIT8 (OpAddress);
}
static void Op34M0 (void)
{
long OpAddress = DirectIndexedX();
BIT16 (OpAddress);
}
static void Op2CM1 (void)
{
long OpAddress = Absolute();
BIT8 (OpAddress);
}
static void Op2CM0 (void)
{
long OpAddress = Absolute();
BIT16 (OpAddress);
}
static void Op3CM1 (void)
{
long OpAddress = AbsoluteIndexedX();
BIT8 (OpAddress);
}
static void Op3CM0 (void)
{
long OpAddress = AbsoluteIndexedX();
BIT16 (OpAddress);
}
/**********************************************************************************************/
/* CMP *************************************************************************************** */
static void OpC9M1 (void)
{
long s9xInt32 = (int) CPUPack.Registers.AL - (int) *CPUPack.CPU.PC++;
CPUPack.ICPU._Carry = s9xInt32 >= 0;
SetZN8 ((uint8) s9xInt32);
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeed;
#endif
}
static void OpC9M0 (void)
{
#ifdef FAST_LSB_WORD_ACCESS
long s9xInt32 = (long) CPUPack.Registers.A.W - (long) *(uint16 *) CPUPack.CPU.PC;
#else
long s9xInt32 = (long) CPUPack.Registers.A.W -
(long) (*CPUPack.CPU.PC + (*(CPUPack.CPU.PC + 1) << 8));
#endif
CPUPack.ICPU._Carry = s9xInt32 >= 0;
SetZN16 ((uint16) s9xInt32);
CPUPack.CPU.PC += 2;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeedx2;
#endif
}
static void OpC5M1 (void)
{
long OpAddress = Direct();
CMP8 (OpAddress);
}
static void OpC5M0 (void)
{
long OpAddress = Direct();
CMP16 (OpAddress);
}
static void OpD5M1 (void)
{
long OpAddress = DirectIndexedX();
CMP8 (OpAddress);
}
static void OpD5M0 (void)
{
long OpAddress = DirectIndexedX();
CMP16 (OpAddress);
}
static void OpD2M1 (void)
{
long OpAddress = DirectIndirect();
CMP8 (OpAddress);
}
static void OpD2M0 (void)
{
long OpAddress = DirectIndirect();
CMP16 (OpAddress);
}
static void OpC1M1 (void)
{
long OpAddress = DirectIndexedIndirect();
CMP8 (OpAddress);
}
static void OpC1M0 (void)
{
long OpAddress = DirectIndexedIndirect();
CMP16 (OpAddress);
}
static void OpD1M1 (void)
{
long OpAddress = DirectIndirectIndexed();
CMP8 (OpAddress);
}
static void OpD1M0 (void)
{
long OpAddress = DirectIndirectIndexed();
CMP16 (OpAddress);
}
static void OpC7M1 (void)
{
long OpAddress = DirectIndirectLong();
CMP8 (OpAddress);
}
static void OpC7M0 (void)
{
long OpAddress = DirectIndirectLong();
CMP16 (OpAddress);
}
static void OpD7M1 (void)
{
long OpAddress = DirectIndirectIndexedLong();
CMP8 (OpAddress);
}
static void OpD7M0 (void)
{
long OpAddress = DirectIndirectIndexedLong();
CMP16 (OpAddress);
}
static void OpCDM1 (void)
{
long OpAddress = Absolute();
CMP8 (OpAddress);
}
static void OpCDM0 (void)
{
long OpAddress = Absolute();
CMP16 (OpAddress);
}
static void OpDDM1 (void)
{
long OpAddress = AbsoluteIndexedX();
CMP8 (OpAddress);
}
static void OpDDM0 (void)
{
long OpAddress = AbsoluteIndexedX();
CMP16 (OpAddress);
}
static void OpD9M1 (void)
{
long OpAddress = AbsoluteIndexedY();
CMP8 (OpAddress);
}
static void OpD9M0 (void)
{
long OpAddress = AbsoluteIndexedY();
CMP16 (OpAddress);
}
static void OpCFM1 (void)
{
long OpAddress = AbsoluteLong();
CMP8 (OpAddress);
}
static void OpCFM0 (void)
{
long OpAddress = AbsoluteLong();
CMP16 (OpAddress);
}
static void OpDFM1 (void)
{
long OpAddress = AbsoluteLongIndexedX();
CMP8 (OpAddress);
}
static void OpDFM0 (void)
{
long OpAddress = AbsoluteLongIndexedX();
CMP16 (OpAddress);
}
static void OpC3M1 (void)
{
long OpAddress = StackRelative();
CMP8 (OpAddress);
}
static void OpC3M0 (void)
{
long OpAddress = StackRelative();
CMP16 (OpAddress);
}
static void OpD3M1 (void)
{
long OpAddress = StackRelativeIndirectIndexed();
CMP8 (OpAddress);
}
static void OpD3M0 (void)
{
long OpAddress = StackRelativeIndirectIndexed();
CMP16 (OpAddress);
}
/**********************************************************************************************/
/* CMX *************************************************************************************** */
static void OpE0X1 (void)
{
long s9xInt32 = (int) CPUPack.Registers.XL - (int) *CPUPack.CPU.PC++;
CPUPack.ICPU._Carry = s9xInt32 >= 0;
SetZN8 ((uint8) s9xInt32);
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeed;
#endif
}
static void OpE0X0 (void)
{
#ifdef FAST_LSB_WORD_ACCESS
long s9xInt32 = (long) CPUPack.Registers.X.W - (long) *(uint16 *) CPUPack.CPU.PC;
#else
long s9xInt32 = (long) CPUPack.Registers.X.W -
(long) (*CPUPack.CPU.PC + (*(CPUPack.CPU.PC + 1) << 8));
#endif
CPUPack.ICPU._Carry = s9xInt32 >= 0;
SetZN16 ((uint16) s9xInt32);
CPUPack.CPU.PC += 2;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeedx2;
#endif
}
static void OpE4X1 (void)
{
long OpAddress = Direct();
CMX8 (OpAddress);
}
static void OpE4X0 (void)
{
long OpAddress = Direct();
CMX16 (OpAddress);
}
static void OpECX1 (void)
{
long OpAddress = Absolute();
CMX8 (OpAddress);
}
static void OpECX0 (void)
{
long OpAddress = Absolute();
CMX16 (OpAddress);
}
/**********************************************************************************************/
/* CMY *************************************************************************************** */
static void OpC0X1 (void)
{
long s9xInt32 = (int) CPUPack.Registers.YL - (int) *CPUPack.CPU.PC++;
CPUPack.ICPU._Carry = s9xInt32 >= 0;
SetZN8 ((uint8) s9xInt32);
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeed;
#endif
}
static void OpC0X0 (void)
{
#ifdef FAST_LSB_WORD_ACCESS
long s9xInt32 = (long) CPUPack.Registers.Y.W - (long) *(uint16 *) CPUPack.CPU.PC;
#else
long s9xInt32 = (long) CPUPack.Registers.Y.W -
(long) (*CPUPack.CPU.PC + (*(CPUPack.CPU.PC + 1) << 8));
#endif
CPUPack.ICPU._Carry = s9xInt32 >= 0;
SetZN16 ((uint16) s9xInt32);
CPUPack.CPU.PC += 2;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeedx2;
#endif
}
static void OpC4X1 (void)
{
long OpAddress = Direct();
CMY8 (OpAddress);
}
static void OpC4X0 (void)
{
long OpAddress = Direct();
CMY16 (OpAddress);
}
static void OpCCX1 (void)
{
long OpAddress = Absolute();
CMY8 (OpAddress);
}
static void OpCCX0 (void)
{
long OpAddress = Absolute();
CMY16 (OpAddress);
}
/**********************************************************************************************/
/* DEC *************************************************************************************** */
static void Op3AM1 (void)
{
A_DEC8 ();
}
static void Op3AM0 (void)
{
A_DEC16 ();
}
static void OpC6M1 (void)
{
long OpAddress = Direct();
DEC8 (OpAddress);
}
static void OpC6M0 (void)
{
long OpAddress = Direct();
DEC16 (OpAddress);
}
static void OpD6M1 (void)
{
long OpAddress = DirectIndexedX();
DEC8 (OpAddress);
}
static void OpD6M0 (void)
{
long OpAddress = DirectIndexedX();
DEC16 (OpAddress);
}
static void OpCEM1 (void)
{
long OpAddress = Absolute();
DEC8 (OpAddress);
}
static void OpCEM0 (void)
{
long OpAddress = Absolute();
DEC16 (OpAddress);
}
static void OpDEM1 (void)
{
long OpAddress = AbsoluteIndexedX();
DEC8 (OpAddress);
}
static void OpDEM0 (void)
{
long OpAddress = AbsoluteIndexedX();
DEC16 (OpAddress);
}
/**********************************************************************************************/
/* EOR *************************************************************************************** */
static void Op49M1 (void)
{
CPUPack.Registers.AL ^= *CPUPack.CPU.PC++;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeed;
#endif
SetZN8 (CPUPack.Registers.AL);
}
static void Op49M0 (void)
{
#ifdef FAST_LSB_WORD_ACCESS
CPUPack.Registers.A.W ^= *(uint16 *) CPUPack.CPU.PC;
#else
CPUPack.Registers.A.W ^= *CPUPack.CPU.PC + (*(CPUPack.CPU.PC + 1) << 8);
#endif
CPUPack.CPU.PC += 2;
#ifdef VAR_CYCLES
CPUPack.CPU.Cycles += CPUPack.CPU.MemSpeedx2;
#endif
SetZN16 (CPUPack.Registers.A.W);
}
static void Op45M1 (void)
{
long OpAddress = Direct();
EOR8 (OpAddress);
}
static void Op45M0 (void)
{
long OpAddress = Direct();
EOR16 (OpAddress);
}
static void Op55M1 (void)
{
long OpAddress = DirectIndexedX();
EOR8 (OpAddress);
}
static void Op55M0 (void)
{
long OpAddress = DirectIndexedX();
EOR16 (OpAddress);
}
static void Op52M1 (void)
{
long OpAddress = DirectIndirect();
EOR8 (OpAddress);
}
static void Op52M0 (void)
{
long OpAddress = DirectIndirect();
EOR16 (OpAddress);
}
static void Op41M1 (void)