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sa1cpu.cpp
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sa1cpu.cpp
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/*
* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
*
* (c) Copyright 1996 - 2001 Gary Henderson ([email protected]) and
* Jerremy Koot ([email protected])
*
* Super FX C emulator code
* (c) Copyright 1997 - 1999 Ivar ([email protected]) 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 ([email protected]).
*
* 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.
*/
//#include "snes9x.h"
#include "memmap.h"
//#include "ppu.h"
//#include "cpuexec.h"
#include "sa1.h"
#undef CPU
#undef ICPU
#define CPU SA1
#define ICPU SA1
#undef Registers
#define Registers SA1Registers
#define S9xGetByte S9xSA1GetByteFast
#define S9xGetWord S9xSA1GetWordFast
#define S9xSetByte S9xSA1SetByteFast
#define S9xSetWord S9xSA1SetWordFast
#define S9xSetPCBase S9xSA1SetPCBase
#define S9xOpcodesE1 S9xSA1OpcodesE1
#define S9xOpcodesM1X1 S9xSA1OpcodesM1X1
#define S9xOpcodesM1X0 S9xSA1OpcodesM1X0
#define S9xOpcodesM0X1 S9xSA1OpcodesM0X1
#define S9xOpcodesM0X0 S9xSA1OpcodesM0X0
#define S9xOpcode_IRQ S9xSA1Opcode_IRQ
#define S9xOpcode_NMI S9xSA1Opcode_NMI
#define S9xUnpackStatus S9xSA1UnpackStatus
#define S9xPackStatus S9xSA1PackStatus
#define S9xFixCycles S9xSA1FixCycles
#define Immediate8 SA1Immediate8
#define Immediate16 SA1Immediate16
#define Relative SA1Relative
#define RelativeLong SA1RelativeLong
#define AbsoluteIndexedIndirect SA1AbsoluteIndexedIndirect
#define AbsoluteIndirectLong SA1AbsoluteIndirectLong
#define AbsoluteIndirect SA1AbsoluteIndirect
#define Absolute SA1Absolute
#define AbsoluteLong SA1AbsoluteLong
#define Direct SA1Direct
#define DirectIndirectIndexed SA1DirectIndirectIndexed
#define DirectIndirectIndexedLong SA1DirectIndirectIndexedLong
#define DirectIndexedIndirect SA1DirectIndexedIndirect
#define DirectIndexedX SA1DirectIndexedX
#define DirectIndexedY SA1DirectIndexedY
#define AbsoluteIndexedX SA1AbsoluteIndexedX
#define AbsoluteIndexedY SA1AbsoluteIndexedY
#define AbsoluteLongIndexedX SA1AbsoluteLongIndexedX
#define DirectIndirect SA1DirectIndirect
#define DirectIndirectLong SA1DirectIndirectLong
#define StackRelative SA1StackRelative
#define StackRelativeIndirectIndexed SA1StackRelativeIndirectIndexed
//#undef CPU_SHUTDOWN
#undef VAR_CYCLES
#define SA1_OPCODES
#include "cpuops.cpp"
/*void S9xSA1MainLoop ()
{
//int i;
#if 0
if (SA1.Flags & NMI_FLAG)
{
SA1.Flags &= ~NMI_FLAG;
if (SA1.WaitingForInterrupt)
{
SA1.WaitingForInterrupt = FALSE;
SA1.PC++;
}
S9xSA1Opcode_NMI ();
}
#endif
if (SA1.Flags & IRQ_PENDING_FLAG)
{
if (SA1.IRQActive)
{
if (SA1.WaitingForInterrupt)
{
SA1.WaitingForInterrupt = FALSE;
SA1.PC++;
}
if (!SA1CheckFlag (IRQ))
S9xSA1Opcode_IRQ ();
}
else
SA1.Flags &= ~IRQ_PENDING_FLAG;
}
#ifdef DEBUGGER
if (SA1.Flags & TRACE_FLAG)
{
for (i = 0; i < 3 && SA1.Executing; i++)
{
S9xSA1Trace ();
#ifdef CPU_SHUTDOWN
SA1.PCAtOpcodeStart = SA1.PC;
#endif
(*SA1.S9xOpcodes [*SA1.PC++].S9xOpcode) ();
}
}
else
#endif
for (i = 0; i < 3 && SA1.Executing; i++)
{
#ifdef CPU_SHUTDOWN
SA1.PCAtOpcodeStart = SA1.PC;
#endif
(*SA1.S9xOpcodes [*SA1.PC++].S9xOpcode) ();
}
(*SA1.S9xOpcodes [*SA1.PC++].S9xOpcode) ();
(*SA1.S9xOpcodes [*SA1.PC++].S9xOpcode) ();
(*SA1.S9xOpcodes [*SA1.PC++].S9xOpcode) ();
}*/
void S9xSA1CheckIRQ()
{
if (SA1.IRQActive)
{
if (SA1.WaitingForInterrupt)
{
SA1.WaitingForInterrupt = FALSE;
SA1.PC++;
}
if (!SA1CheckFlag (IRQ))
S9xSA1Opcode_IRQ ();
}
else
SA1.Flags &= ~IRQ_PENDING_FLAG;
}