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65c816ops.inc
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65c816ops.inc
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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 usecopymodify and distribute Snes9x in both binary and
* source formfor non-commercial purposesis 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 */
/**********************************************************************************************/
#include "cpuexec.h"
#include "cpuaddr.h"
#include "cpuops.h"
#include "cpumacro.h"
#include "apu.h"
#define ApuSync() do { \
CPU.Cycles = CPU.NextEvent; \
if (CPU.APU_APUExecuting) { \
ICPU.CPUExecuting = FALSE; \
do \
{ \
APU_EXECUTE1 (); \
} while (CPU.APU_Cycles < CPU.NextEvent); \
ICPU.CPUExecuting = TRUE; \
} \
} while (0);
/* ADC *************************************************************************************** */
static void Op69M1 ()
{
long OpAddress = Immediate8 ();
ADC8 (OpAddress);
}
static void Op69M0 ()
{
long OpAddress = Immediate16 ();
ADC16 (OpAddress);
}
static void Op65M1 ()
{
long OpAddress = Direct ();
ADC8 (OpAddress);
}
static void Op65M0 ()
{
long OpAddress = Direct ();
ADC16 (OpAddress);
}
static void Op75M1 ()
{
long OpAddress = DirectIndexedX ();
ADC8 (OpAddress);
}
static void Op75M0 ()
{
long OpAddress = DirectIndexedX ();
ADC16 (OpAddress);
}
static void Op72M1 ()
{
long OpAddress = DirectIndirect ();
ADC8 (OpAddress);
}
static void Op72M0 ()
{
long OpAddress = DirectIndirect ();
ADC16 (OpAddress);
}
static void Op61M1 ()
{
long OpAddress = DirectIndexedIndirect ();
ADC8 (OpAddress);
}
static void Op61M0 ()
{
long OpAddress = DirectIndexedIndirect ();
ADC16 (OpAddress);
}
static void Op71M1 ()
{
long OpAddress = DirectIndirectIndexed ();
ADC8 (OpAddress);
}
static void Op71M0 ()
{
long OpAddress = DirectIndirectIndexed ();
ADC16 (OpAddress);
}
static void Op67M1 ()
{
long OpAddress = DirectIndirectLong ();
ADC8 (OpAddress);
}
static void Op67M0 ()
{
long OpAddress = DirectIndirectLong ();
ADC16 (OpAddress);
}
static void Op77M1 ()
{
long OpAddress = DirectIndirectIndexedLong ();
ADC8 (OpAddress);
}
static void Op77M0 ()
{
long OpAddress = DirectIndirectIndexedLong ();
ADC16 (OpAddress);
}
static void Op6DM1 ()
{
long OpAddress = Absolute ();
ADC8 (OpAddress);
}
static void Op6DM0 ()
{
long OpAddress = Absolute ();
ADC16 (OpAddress);
}
static void Op7DM1 ()
{
long OpAddress = AbsoluteIndexedX ();
ADC8 (OpAddress);
}
static void Op7DM0 ()
{
long OpAddress = AbsoluteIndexedX ();
ADC16 (OpAddress);
}
static void Op79M1 ()
{
long OpAddress = AbsoluteIndexedY ();
ADC8 (OpAddress);
}
static void Op79M0 ()
{
long OpAddress = AbsoluteIndexedY ();
ADC16 (OpAddress);
}
static void Op6FM1 ()
{
long OpAddress = AbsoluteLong ();
ADC8 (OpAddress);
}
static void Op6FM0 ()
{
long OpAddress = AbsoluteLong ();
ADC16 (OpAddress);
}
static void Op7FM1 ()
{
long OpAddress = AbsoluteLongIndexedX ();
ADC8 (OpAddress);
}
static void Op7FM0 ()
{
long OpAddress = AbsoluteLongIndexedX ();
ADC16 (OpAddress);
}
static void Op63M1 ()
{
long OpAddress = StackRelative ();
ADC8 (OpAddress);
}
static void Op63M0 ()
{
long OpAddress = StackRelative ();
ADC16 (OpAddress);
}
static void Op73M1 ()
{
long OpAddress = StackRelativeIndirectIndexed ();
ADC8 (OpAddress);
}
static void Op73M0 ()
{
long OpAddress = StackRelativeIndirectIndexed ();
ADC16 (OpAddress);
}
/**********************************************************************************************/
/* AND *************************************************************************************** */
static void Op29M1 ()
{
Registers.AL &= *CPU.PC++;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeed;
#endif
SETZN8 (Registers.AL);
}
static void Op29M0 ()
{
#ifdef FAST_LSB_WORD_ACCESS
Registers.A.W &= *(uint16 *) CPU.PC;
#else
Registers.A.W &= *CPU.PC + (*(CPU.PC + 1) << 8);
#endif
CPU.PC += 2;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeedx2;
#endif
SETZN16 (Registers.A.W);
}
static void Op25M1 ()
{
long OpAddress = Direct ();
AND8 (OpAddress);
}
static void Op25M0 ()
{
long OpAddress = Direct ();
AND16 (OpAddress);
}
static void Op35M1 ()
{
long OpAddress = DirectIndexedX ();
AND8 (OpAddress);
}
static void Op35M0 ()
{
long OpAddress = DirectIndexedX ();
AND16 (OpAddress);
}
static void Op32M1 ()
{
long OpAddress = DirectIndirect ();
AND8 (OpAddress);
}
static void Op32M0 ()
{
long OpAddress = DirectIndirect ();
AND16 (OpAddress);
}
static void Op21M1 ()
{
long OpAddress = DirectIndexedIndirect ();
AND8 (OpAddress);
}
static void Op21M0 ()
{
long OpAddress = DirectIndexedIndirect ();
AND16 (OpAddress);
}
static void Op31M1 ()
{
long OpAddress = DirectIndirectIndexed ();
AND8 (OpAddress);
}
static void Op31M0 ()
{
long OpAddress = DirectIndirectIndexed ();
AND16 (OpAddress);
}
static void Op27M1 ()
{
long OpAddress = DirectIndirectLong ();
AND8 (OpAddress);
}
static void Op27M0 ()
{
long OpAddress = DirectIndirectLong ();
AND16 (OpAddress);
}
static void Op37M1 ()
{
long OpAddress = DirectIndirectIndexedLong ();
AND8 (OpAddress);
}
static void Op37M0 ()
{
long OpAddress = DirectIndirectIndexedLong ();
AND16 (OpAddress);
}
static void Op2DM1 ()
{
long OpAddress = Absolute ();
AND8 (OpAddress);
}
static void Op2DM0 ()
{
long OpAddress = Absolute ();
AND16 (OpAddress);
}
static void Op3DM1 ()
{
long OpAddress = AbsoluteIndexedX ();
AND8 (OpAddress);
}
static void Op3DM0 ()
{
long OpAddress = AbsoluteIndexedX ();
AND16 (OpAddress);
}
static void Op39M1 ()
{
long OpAddress = AbsoluteIndexedY ();
AND8 (OpAddress);
}
static void Op39M0 ()
{
long OpAddress = AbsoluteIndexedY ();
AND16 (OpAddress);
}
static void Op2FM1 ()
{
long OpAddress = AbsoluteLong ();
AND8 (OpAddress);
}
static void Op2FM0 ()
{
long OpAddress = AbsoluteLong ();
AND16 (OpAddress);
}
static void Op3FM1 ()
{
long OpAddress = AbsoluteLongIndexedX ();
AND8 (OpAddress);
}
static void Op3FM0 ()
{
long OpAddress = AbsoluteLongIndexedX ();
AND16 (OpAddress);
}
static void Op23M1 ()
{
long OpAddress = StackRelative ();
AND8 (OpAddress);
}
static void Op23M0 ()
{
long OpAddress = StackRelative ();
AND16 (OpAddress);
}
static void Op33M1 ()
{
long OpAddress = StackRelativeIndirectIndexed ();
AND8 (OpAddress);
}
static void Op33M0 ()
{
long OpAddress = StackRelativeIndirectIndexed ();
AND16 (OpAddress);
}
/**********************************************************************************************/
/* ASL *************************************************************************************** */
static void Op0AM1 ()
{
A_ASL8 ();
}
static void Op0AM0 ()
{
A_ASL16 ();
}
static void Op06M1 ()
{
long OpAddress = Direct ();
ASL8 (OpAddress);
}
static void Op06M0 ()
{
long OpAddress = Direct ();
ASL16 (OpAddress);
}
static void Op16M1 ()
{
long OpAddress = DirectIndexedX ();
ASL8 (OpAddress);
}
static void Op16M0 ()
{
long OpAddress = DirectIndexedX ();
ASL16 (OpAddress);
}
static void Op0EM1 ()
{
long OpAddress = Absolute ();
ASL8 (OpAddress);
}
static void Op0EM0 ()
{
long OpAddress = Absolute ();
ASL16 (OpAddress);
}
static void Op1EM1 ()
{
long OpAddress = AbsoluteIndexedX ();
ASL8 (OpAddress);
}
static void Op1EM0 ()
{
long OpAddress = AbsoluteIndexedX ();
ASL16 (OpAddress);
}
/**********************************************************************************************/
/* BIT *************************************************************************************** */
static void Op89M1 ()
{
ICPU._Zero = Registers.AL & *CPU.PC++;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeed;
#endif
}
static void Op89M0 ()
{
#ifdef FAST_LSB_WORD_ACCESS
ICPU._Zero = (Registers.A.W & *(uint16 *) CPU.PC) != 0;
#else
ICPU._Zero = (Registers.A.W & (*CPU.PC + (*(CPU.PC + 1) << 8))) != 0;
#endif
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeedx2;
#endif
CPU.PC += 2;
}
static void Op24M1 ()
{
long OpAddress = Direct ();
BIT8 (OpAddress);
}
static void Op24M0 ()
{
long OpAddress = Direct ();
BIT16 (OpAddress);
}
static void Op34M1 ()
{
long OpAddress = DirectIndexedX ();
BIT8 (OpAddress);
}
static void Op34M0 ()
{
long OpAddress = DirectIndexedX ();
BIT16 (OpAddress);
}
static void Op2CM1 ()
{
long OpAddress = Absolute ();
BIT8 (OpAddress);
}
static void Op2CM0 ()
{
long OpAddress = Absolute ();
BIT16 (OpAddress);
}
static void Op3CM1 ()
{
long OpAddress = AbsoluteIndexedX ();
BIT8 (OpAddress);
}
static void Op3CM0 ()
{
long OpAddress = AbsoluteIndexedX ();
BIT16 (OpAddress);
}
/**********************************************************************************************/
/* CMP *************************************************************************************** */
static void OpC9M1 ()
{
int32 Int32 = (int) Registers.AL - (int) *CPU.PC++;
ICPU._Carry = Int32 >= 0;
SETZN8 ((uint8) Int32);
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeed;
#endif
}
static void OpC9M0 ()
{
#ifdef FAST_LSB_WORD_ACCESS
int32 Int32 = (long) Registers.A.W - (long) *(uint16 *) CPU.PC;
#else
int32 Int32 = (long) Registers.A.W -
(long) (*CPU.PC + (*(CPU.PC + 1) << 8));
#endif
ICPU._Carry = Int32 >= 0;
SETZN16 ((uint16) Int32);
CPU.PC += 2;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeedx2;
#endif
}
static void OpC5M1 ()
{
long OpAddress = Direct ();
CMP8 (OpAddress);
}
static void OpC5M0 ()
{
long OpAddress = Direct ();
CMP16 (OpAddress);
}
static void OpD5M1 ()
{
long OpAddress = DirectIndexedX ();
CMP8 (OpAddress);
}
static void OpD5M0 ()
{
long OpAddress = DirectIndexedX ();
CMP16 (OpAddress);
}
static void OpD2M1 ()
{
long OpAddress = DirectIndirect ();
CMP8 (OpAddress);
}
static void OpD2M0 ()
{
long OpAddress = DirectIndirect ();
CMP16 (OpAddress);
}
static void OpC1M1 ()
{
long OpAddress = DirectIndexedIndirect ();
CMP8 (OpAddress);
}
static void OpC1M0 ()
{
long OpAddress = DirectIndexedIndirect ();
CMP16 (OpAddress);
}
static void OpD1M1 ()
{
long OpAddress = DirectIndirectIndexed ();
CMP8 (OpAddress);
}
static void OpD1M0 ()
{
long OpAddress = DirectIndirectIndexed ();
CMP16 (OpAddress);
}
static void OpC7M1 ()
{
long OpAddress = DirectIndirectLong ();
CMP8 (OpAddress);
}
static void OpC7M0 ()
{
long OpAddress = DirectIndirectLong ();
CMP16 (OpAddress);
}
static void OpD7M1 ()
{
long OpAddress = DirectIndirectIndexedLong ();
CMP8 (OpAddress);
}
static void OpD7M0 ()
{
long OpAddress = DirectIndirectIndexedLong ();
CMP16 (OpAddress);
}
static void OpCDM1 ()
{
long OpAddress = Absolute ();
CMP8 (OpAddress);
}
static void OpCDM0 ()
{
long OpAddress = Absolute ();
CMP16 (OpAddress);
}
static void OpDDM1 ()
{
long OpAddress = AbsoluteIndexedX ();
CMP8 (OpAddress);
}
static void OpDDM0 ()
{
long OpAddress = AbsoluteIndexedX ();
CMP16 (OpAddress);
}
static void OpD9M1 ()
{
long OpAddress = AbsoluteIndexedY ();
CMP8 (OpAddress);
}
static void OpD9M0 ()
{
long OpAddress = AbsoluteIndexedY ();
CMP16 (OpAddress);
}
static void OpCFM1 ()
{
long OpAddress = AbsoluteLong ();
CMP8 (OpAddress);
}
static void OpCFM0 ()
{
long OpAddress = AbsoluteLong ();
CMP16 (OpAddress);
}
static void OpDFM1 ()
{
long OpAddress = AbsoluteLongIndexedX ();
CMP8 (OpAddress);
}
static void OpDFM0 ()
{
long OpAddress = AbsoluteLongIndexedX ();
CMP16 (OpAddress);
}
static void OpC3M1 ()
{
long OpAddress = StackRelative ();
CMP8 (OpAddress);
}
static void OpC3M0 ()
{
long OpAddress = StackRelative ();
CMP16 (OpAddress);
}
static void OpD3M1 ()
{
long OpAddress = StackRelativeIndirectIndexed ();
CMP8 (OpAddress);
}
static void OpD3M0 ()
{
long OpAddress = StackRelativeIndirectIndexed ();
CMP16 (OpAddress);
}
/**********************************************************************************************/
/* CMX *************************************************************************************** */
static void OpE0X1 ()
{
int32 Int32 = (int) Registers.XL - (int) *CPU.PC++;
ICPU._Carry = Int32 >= 0;
SETZN8 ((uint8) Int32);
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeed;
#endif
}
static void OpE0X0 ()
{
#ifdef FAST_LSB_WORD_ACCESS
int32 Int32 = (long) Registers.X.W - (long) *(uint16 *) CPU.PC;
#else
int32 Int32 = (long) Registers.X.W -
(long) (*CPU.PC + (*(CPU.PC + 1) << 8));
#endif
ICPU._Carry = Int32 >= 0;
SETZN16 ((uint16) Int32);
CPU.PC += 2;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeedx2;
#endif
}
static void OpE4X1 ()
{
long OpAddress = Direct ();
CMX8 (OpAddress);
}
static void OpE4X0 ()
{
long OpAddress = Direct ();
CMX16 (OpAddress);
}
static void OpECX1 ()
{
long OpAddress = Absolute ();
CMX8 (OpAddress);
}
static void OpECX0 ()
{
long OpAddress = Absolute ();
CMX16 (OpAddress);
}
/**********************************************************************************************/
/* CMY *************************************************************************************** */
static void OpC0X1 ()
{
int32 Int32 = (int) Registers.YL - (int) *CPU.PC++;
ICPU._Carry = Int32 >= 0;
SETZN8 ((uint8) Int32);
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeed;
#endif
}
static void OpC0X0 ()
{
#ifdef FAST_LSB_WORD_ACCESS
int32 Int32 = (long) Registers.Y.W - (long) *(uint16 *) CPU.PC;
#else
int32 Int32 = (long) Registers.Y.W -
(long) (*CPU.PC + (*(CPU.PC + 1) << 8));
#endif
ICPU._Carry = Int32 >= 0;
SETZN16 ((uint16) Int32);
CPU.PC += 2;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeedx2;
#endif
}
static void OpC4X1 ()
{
long OpAddress = Direct ();
CMY8 (OpAddress);
}
static void OpC4X0 ()
{
long OpAddress = Direct ();
CMY16 (OpAddress);
}
static void OpCCX1 ()
{
long OpAddress = Absolute ();
CMY8 (OpAddress);
}
static void OpCCX0 ()
{
long OpAddress = Absolute ();
CMY16 (OpAddress);
}
/**********************************************************************************************/
/* DEC *************************************************************************************** */
static void Op3AM1 ()
{
A_DEC8 ();
}
static void Op3AM0 ()
{
A_DEC16 ();
}
static void OpC6M1 ()
{
long OpAddress = Direct ();
DEC8 (OpAddress);
}
static void OpC6M0 ()
{
long OpAddress = Direct ();
DEC16 (OpAddress);
}
static void OpD6M1 ()
{
long OpAddress = DirectIndexedX ();
DEC8 (OpAddress);
}
static void OpD6M0 ()
{
long OpAddress = DirectIndexedX ();
DEC16 (OpAddress);
}
static void OpCEM1 ()
{
long OpAddress = Absolute ();
DEC8 (OpAddress);
}
static void OpCEM0 ()
{
long OpAddress = Absolute ();
DEC16 (OpAddress);
}
static void OpDEM1 ()
{
long OpAddress = AbsoluteIndexedX ();
DEC8 (OpAddress);
}
static void OpDEM0 ()
{
long OpAddress = AbsoluteIndexedX ();
DEC16 (OpAddress);
}
/**********************************************************************************************/
/* EOR *************************************************************************************** */
static void Op49M1 ()
{
Registers.AL ^= *CPU.PC++;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeed;
#endif
SETZN8 (Registers.AL);
}
static void Op49M0 ()
{
#ifdef FAST_LSB_WORD_ACCESS
Registers.A.W ^= *(uint16 *) CPU.PC;
#else
Registers.A.W ^= *CPU.PC + (*(CPU.PC + 1) << 8);
#endif
CPU.PC += 2;
#ifdef VAR_CYCLES
CPU.Cycles += CPU.MemSpeedx2;
#endif
SETZN16 (Registers.A.W);
}
static void Op45M1 ()
{
long OpAddress = Direct ();
EOR8 (OpAddress);
}
static void Op45M0 ()
{
long OpAddress = Direct ();
EOR16 (OpAddress);
}
static void Op55M1 ()
{
long OpAddress = DirectIndexedX ();
EOR8 (OpAddress);
}
static void Op55M0 ()
{
long OpAddress = DirectIndexedX ();
EOR16 (OpAddress);
}
static void Op52M1 ()
{
long OpAddress = DirectIndirect ();
EOR8 (OpAddress);
}
static void Op52M0 ()
{
long OpAddress = DirectIndirect ();
EOR16 (OpAddress);
}
static void Op41M1 ()
{
long OpAddress = DirectIndexedIndirect ();
EOR8 (OpAddress);
}