mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-11-28 05:24:21 +01:00
434 lines
11 KiB
C
434 lines
11 KiB
C
/**********************************************************************************
|
|
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 2002 - 2004 Matthew Kendora
|
|
|
|
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
|
|
|
|
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
|
|
|
|
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
|
|
|
|
(c) Copyright 2002 - 2006 Brad Jorsch (anomie@users.sourceforge.net),
|
|
funkyass (funkyass@spam.shaw.ca),
|
|
Kris Bleakley (codeviolation@hotmail.com),
|
|
Nach (n-a-c-h@users.sourceforge.net), and
|
|
zones (kasumitokoduck@yahoo.com)
|
|
|
|
BS-X C emulator code
|
|
(c) Copyright 2005 - 2006 Dreamer Nom,
|
|
zones
|
|
|
|
C4 x86 assembler and some C emulation code
|
|
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
|
|
Nach,
|
|
zsKnight (zsknight@zsnes.com)
|
|
|
|
C4 C++ code
|
|
(c) Copyright 2003 - 2006 Brad Jorsch,
|
|
Nach
|
|
|
|
DSP-1 emulator code
|
|
(c) Copyright 1998 - 2006 _Demo_,
|
|
Andreas Naive (andreasnaive@gmail.com)
|
|
Gary Henderson,
|
|
Ivar (ivar@snes9x.com),
|
|
John Weidman,
|
|
Kris Bleakley,
|
|
Matthew Kendora,
|
|
Nach,
|
|
neviksti (neviksti@hotmail.com)
|
|
|
|
DSP-2 emulator code
|
|
(c) Copyright 2003 John Weidman,
|
|
Kris Bleakley,
|
|
Lord Nightmare (lord_nightmare@users.sourceforge.net),
|
|
Matthew Kendora,
|
|
neviksti
|
|
|
|
|
|
DSP-3 emulator code
|
|
(c) Copyright 2003 - 2006 John Weidman,
|
|
Kris Bleakley,
|
|
Lancer,
|
|
z80 gaiden
|
|
|
|
DSP-4 emulator code
|
|
(c) Copyright 2004 - 2006 Dreamer Nom,
|
|
John Weidman,
|
|
Kris Bleakley,
|
|
Nach,
|
|
z80 gaiden
|
|
|
|
OBC1 emulator code
|
|
(c) Copyright 2001 - 2004 zsKnight,
|
|
pagefault (pagefault@zsnes.com),
|
|
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,
|
|
Dark Force
|
|
|
|
S-DD1 C emulator code
|
|
(c) Copyright 2003 Brad Jorsch with research by
|
|
Andreas Naive,
|
|
John Weidman
|
|
|
|
S-RTC C emulator code
|
|
(c) Copyright 2001-2006 byuu,
|
|
John Weidman
|
|
|
|
ST010 C++ emulator code
|
|
(c) Copyright 2003 Feather,
|
|
John Weidman,
|
|
Kris Bleakley,
|
|
Matthew Kendora
|
|
|
|
Super FX x86 assembler emulator code
|
|
(c) Copyright 1998 - 2003 _Demo_,
|
|
pagefault,
|
|
zsKnight,
|
|
|
|
Super FX C emulator code
|
|
(c) Copyright 1997 - 1999 Ivar,
|
|
Gary Henderson,
|
|
John Weidman
|
|
|
|
Sound DSP emulator code is derived from SNEeSe and OpenSPC:
|
|
(c) Copyright 1998 - 2003 Brad Martin
|
|
(c) Copyright 1998 - 2006 Charles Bilyue'
|
|
|
|
SH assembler code partly based on x86 assembler code
|
|
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
|
|
|
|
2xSaI filter
|
|
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
|
|
|
|
HQ2x filter
|
|
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
|
|
|
|
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/or 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 or it's derivatives.
|
|
|
|
Snes9x is freeware for PERSONAL USE only. Commercial users should
|
|
seek permission of the copyright holders first. Commercial use includes,
|
|
but is not limited to, charging money for Snes9x or software derived from
|
|
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
|
|
using Snes9x as a promotion for your commercial product.
|
|
|
|
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;
|
|
int32 Cycles;
|
|
int32 NextEvent;
|
|
int32 V_Counter;
|
|
int32 MemSpeed;
|
|
int32 MemSpeedx2;
|
|
int32 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 {
|
|
int32 state;
|
|
int32 type;
|
|
short volume_left;
|
|
short volume_right;
|
|
uint32 frequency;
|
|
uint32 count;
|
|
signed short wave [ORIG_MAX_BUFFER_SIZE];
|
|
bool8 loop;
|
|
int32 envx;
|
|
short left_vol_level;
|
|
short right_vol_level;
|
|
short envx_target;
|
|
uint32 env_error;
|
|
uint32 erate;
|
|
int32 direction;
|
|
uint32 attack_rate;
|
|
uint32 decay_rate;
|
|
uint32 sustain_rate;
|
|
uint32 release_rate;
|
|
uint32 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;
|
|
int32 *echo_buf_ptr;
|
|
int32 mode;
|
|
uint32 dummy [8];
|
|
} OrigChannel;
|
|
|
|
typedef struct
|
|
{
|
|
short master_volume_left;
|
|
short master_volume_right;
|
|
short echo_volume_left;
|
|
short echo_volume_right;
|
|
int32 echo_enable;
|
|
int32 echo_feedback;
|
|
int32 echo_ptr;
|
|
int32 echo_buffer_size;
|
|
int32 echo_write_enabled;
|
|
int32 echo_channel_enable;
|
|
int32 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 DB;
|
|
OrigPair P;
|
|
OrigPair A;
|
|
OrigPair D;
|
|
OrigPair S;
|
|
OrigPair X;
|
|
OrigPair Y;
|
|
PC_t PC;
|
|
};
|
|
|
|
#endif
|
|
|