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/*******************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
Jerremy Koot (jkoot@snes9x.com)
(c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
(c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
funkyass (funkyass@spam.shaw.ca),
Joel Yliluoma (http://iki.fi/bisqwit/)
Kris Bleakley (codeviolation@hotmail.com),
Matthew Kendora,
Nach (n-a-c-h@users.sourceforge.net),
Peter Bortas (peter@bortas.org) and
zones (kasumitokoduck@yahoo.com)
C4 x86 assembler and some C emulation code
(c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
_Demo_ (_demo_@zsnes.com), and Nach
C4 C++ code
(c) Copyright 2003 Brad Jorsch
DSP-1 emulator code
(c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
John Weidman, neviksti (neviksti@hotmail.com),
Kris Bleakley, Andreas Naive
DSP-2 emulator code
(c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
Lord Nightmare (lord_nightmare@users.sourceforge.net
OBC1 emulator code
(c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
Kris Bleakley
Ported from x86 assembler to C by sanmaiwashi
SPC7110 and RTC C++ emulator code
(c) Copyright 2002 Matthew Kendora with research by
zsKnight, John Weidman, and Dark Force
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive and John Weidman
S-RTC C emulator code
(c) Copyright 2001 John Weidman
ST010 C++ emulator code
(c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
Super FX x86 assembler emulator code
(c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
SH assembler code partly based on x86 assembler code
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
Specific ports 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.
*******************************************************************************/
#ifndef _SNAPORIG_H_
#define _SNAPORIG_H_
#define ORIG_SNAPSHOT_MAGIC "#!snes96"
#define ORIG_SNAPSHOT_VERSION 4
EXTERN_C bool8 S9xLoadOrigSnapshot (const char *filename);
struct SOrigCPUState{
uint32 Flags;
short Cycles_old;
short NextEvent_old;
uint8 CurrentFrame;
uint8 FastROMSpeed_old_old;
uint16 V_Counter_old;
bool8 BranchSkip;
bool8 NMIActive;
bool8 IRQActive;
bool8 WaitingForInterrupt;
bool8 InDMA;
uint8 WhichEvent;
uint8 *PC;
uint8 *PCBase;
uint16 MemSpeed_old;
uint16 MemSpeedx2_old;
uint16 FastROMSpeed_old;
bool8 FastDP;
uint8 *PCAtOpcodeStart;
uint8 *WaitAddress;
uint32 WaitCounter;
long Cycles;
long NextEvent;
long V_Counter;
long MemSpeed;
long MemSpeedx2;
long FastROMSpeed;
};
struct SOrigAPU
{
uint32 Cycles;
bool8 ShowROM;
uint8 Flags;
uint8 KeyedChannels;
uint8 OutPorts [4];
uint8 DSP [0x80];
uint8 ExtraRAM [64];
uint16 Timer [3];
uint16 TimerTarget [3];
bool8 TimerEnabled [3];
bool8 TimerValueWritten [3];
};
typedef union
{
#ifdef LSB_FIRST
struct { uint8 A, Y; } B;
#else
struct { uint8 Y, A; } B;
#endif
uint16 W;
} OrigYAndA;
struct SOrigAPURegisters{
uint8 P;
OrigYAndA YA;
uint8 X;
uint8 S;
uint16 PC;
};
#define ORIG_MAX_BUFFER_SIZE (1024 * 4)
#define NUM_CHANNELS 8
typedef struct {
int state;
int type;
short volume_left;
short volume_right;
int frequency;
int count;
signed short wave [ORIG_MAX_BUFFER_SIZE];
bool8 loop;
int envx;
short left_vol_level;
short right_vol_level;
short envx_target;
unsigned long int env_error;
unsigned long erate;
int direction;
unsigned long attack_rate;
unsigned long decay_rate;
unsigned long sustain_rate;
unsigned long release_rate;
unsigned long sustain_level;
signed short sample;
signed short decoded [16];
signed short previous [2];
uint16 sample_number;
bool8 last_block;
bool8 needs_decode;
uint32 block_pointer;
uint32 sample_pointer;
int *echo_buf_ptr;
int mode;
uint32 dummy [8];
} OrigChannel;
typedef struct
{
short master_volume_left;
short master_volume_right;
short echo_volume_left;
short echo_volume_right;
int echo_enable;
int echo_feedback;
int echo_ptr;
int echo_buffer_size;
int echo_write_enabled;
int echo_channel_enable;
int pitch_mod;
// Just incase they are needed in the future, for snapshot compatibility.
uint32 dummy [3];
OrigChannel channels [NUM_CHANNELS];
} SOrigSoundData;
struct SOrigOBJ
{
short HPos;
uint16 VPos;
uint16 Name;
uint8 VFlip;
uint8 HFlip;
uint8 Priority;
uint8 Palette;
uint8 Size;
uint8 Prev;
uint8 Next;
};
struct SOrigPPU {
uint8 BGMode;
uint8 BG3Priority;
uint8 Brightness;
struct {
bool8 High;
uint8 Increment;
uint16 Address;
uint16 Mask1;
uint16 FullGraphicCount;
uint16 Shift;
} VMA;
struct {
uint8 TileSize;
uint16 TileAddress;
uint8 Width;
uint8 Height;
uint16 SCBase;
uint16 VOffset;
uint16 HOffset;
bool8 ThroughMain;
bool8 ThroughSub;
uint8 BGSize;
uint16 NameBase;
uint16 SCSize;
bool8 Addition;
} BG [4];
bool8 CGFLIP;
uint16 CGDATA [256];
uint8 FirstSprite;
uint8 LastSprite;
struct SOrigOBJ OBJ [129];
uint8 OAMPriorityRotation;
uint16 OAMAddr;
uint8 OAMFlip;
uint16 OAMTileAddress;
uint16 IRQVBeamPos;
uint16 IRQHBeamPos;
uint16 VBeamPosLatched;
uint16 HBeamPosLatched;
uint8 HBeamFlip;
uint8 VBeamFlip;
uint8 HVBeamCounterLatched;
short MatrixA;
short MatrixB;
short MatrixC;
short MatrixD;
short CentreX;
short CentreY;
uint8 Joypad1ButtonReadPos;
uint8 Joypad2ButtonReadPos;
uint8 CGADD;
uint8 FixedColourRed;
uint8 FixedColourGreen;
uint8 FixedColourBlue;
uint16 SavedOAMAddr;
uint16 ScreenHeight;
uint32 WRAM;
uint8 BG_Forced;
bool8 ForcedBlanking;
bool8 OBJThroughMain;
bool8 OBJThroughSub;
uint8 OBJSizeSelect;
uint8 OBJNameSelect_old;
uint16 OBJNameBase;
bool8 OBJAddition;
uint8 OAMReadFlip;
uint8 OAMData [512 + 32];
bool8 VTimerEnabled;
bool8 HTimerEnabled;
short HTimerPosition;
uint8 Mosaic;
bool8 BGMosaic [4];
bool8 Mode7HFlip;
bool8 Mode7VFlip;
uint8 Mode7Repeat;
uint8 Window1Left;
uint8 Window1Right;
uint8 Window2Left;
uint8 Window2Right;
uint8 ClipCounts [6];
uint8 ClipLeftEdges [3][6];
uint8 ClipRightEdges [3][6];
uint8 ClipWindowOverlapLogic [6];
uint8 ClipWindow1Enable [6];
uint8 ClipWindow2Enable [6];
bool8 ClipWindow1Inside [6];
bool8 ClipWindow2Inside [6];
bool8 RecomputeClipWindows;
uint8 CGFLIPRead;
uint16 OBJNameSelect;
bool8 Need16x8Mulitply;
uint8 Joypad3ButtonReadPos;
uint8 MouseSpeed[2];
};
struct SOrigDMA {
bool8 TransferDirection;
bool8 AAddressFixed;
bool8 AAddressDecrement;
uint8 TransferMode;
uint8 ABank;
uint16 AAddress;
uint16 Address;
uint8 BAddress;
// General DMA only:
uint16 TransferBytes;
// H-DMA only:
bool8 HDMAIndirectAddressing;
uint16 IndirectAddress;
uint8 IndirectBank;
uint8 Repeat;
uint8 LineCount;
uint8 FirstLine;
bool8 JustStarted;
};
typedef union
{
#ifdef LSB_FIRST
struct { uint8 l,h; } B;
#else
struct { uint8 h,l; } B;
#endif
uint16 W;
} OrigPair;
struct SOrigRegisters{
uint8 PB;
uint8 DB;
OrigPair P;
OrigPair A;
OrigPair D;
OrigPair S;
OrigPair X;
OrigPair Y;
uint16 PC;
};
#endif
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