/********************************************************************************** Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com), 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 funkyass (funkyass@spam.shaw.ca), Kris Bleakley (codeviolation@hotmail.com) (c) Copyright 2002 - 2007 Brad Jorsch (anomie@users.sourceforge.net), Nach (n-a-c-h@users.sourceforge.net), zones (kasumitokoduck@yahoo.com) (c) Copyright 2006 - 2007 nitsuja 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, HQ3x, HQ4x filters (c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com) Win32 GUI code (c) Copyright 2003 - 2006 blip, funkyass, Matthew Kendora, Nach, nitsuja Mac OS GUI code (c) Copyright 1998 - 2001 John Stiles (c) Copyright 2001 - 2007 zones 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. **********************************************************************************/ #include "snes9x.h" #include "memmap.h" #include "ppu.h" #include "dsp1.h" #include "missing.h" #include "cpuexec.h" #include "debug.h" #include "apu.h" #include "dma.h" #include "fxemu.h" #include "gfx.h" #include "soundux.h" #include "cheats.h" #include "sa1.h" #include "bsx.h" #include "spc7110.h" #ifdef NETPLAY_SUPPORT #include "netplay.h" #endif START_EXTERN_C char String[513]; struct Missing missing; struct SICPU ICPU; struct SCPUState CPU; struct STimings Timings; struct SRegisters Registers; struct SAPU APU; struct SIAPU IAPU; struct SAPURegisters APURegisters; struct SSettings Settings; struct SDSP1 DSP1; struct SSA1Registers SA1Registers; struct SSA1 SA1; struct SBSX BSX; struct SMulti Multi; SSoundData SoundData; SnesModel M1SNES={1,3,2}; SnesModel M2SNES={2,4,3}; SnesModel* Model=&M1SNES; #if defined(ZSNES_FX) || defined(ZSNES_C4) uint8 *ROM = NULL; uint8 *SRAM = NULL; uint8 *RegRAM = NULL; #endif CMemory Memory; struct SSNESGameFixes SNESGameFixes; unsigned char OpenBus = 0; END_EXTERN_C #ifndef ZSNES_FX struct FxInit_s SuperFX; #else START_EXTERN_C uint8 *SFXPlotTable = NULL; END_EXTERN_C #endif struct SPPU PPU; struct InternalPPU IPPU; struct SDMA DMA[8]; uint8 *HDMAMemPointers [8]; uint8 *HDMABasePointers [8]; struct SBG BG; struct SGFX GFX; struct SLineData LineData[240]; struct SLineMatrixData LineMatrixData [240]; #ifdef GFX_MULTI_FORMAT uint32 RED_LOW_BIT_MASK = RED_LOW_BIT_MASK_RGB565; uint32 GREEN_LOW_BIT_MASK = GREEN_LOW_BIT_MASK_RGB565; uint32 BLUE_LOW_BIT_MASK = BLUE_LOW_BIT_MASK_RGB565; uint32 RED_HI_BIT_MASK = RED_HI_BIT_MASK_RGB565; uint32 GREEN_HI_BIT_MASK = GREEN_HI_BIT_MASK_RGB565; uint32 BLUE_HI_BIT_MASK = BLUE_HI_BIT_MASK_RGB565; uint32 MAX_RED = MAX_RED_RGB565; uint32 MAX_GREEN = MAX_GREEN_RGB565; uint32 MAX_BLUE = MAX_BLUE_RGB565; uint32 SPARE_RGB_BIT_MASK = SPARE_RGB_BIT_MASK_RGB565; uint32 GREEN_HI_BIT = (MAX_GREEN_RGB565 + 1) >> 1; uint32 RGB_LOW_BITS_MASK = (RED_LOW_BIT_MASK_RGB565 | GREEN_LOW_BIT_MASK_RGB565 | BLUE_LOW_BIT_MASK_RGB565); uint32 RGB_HI_BITS_MASK = (RED_HI_BIT_MASK_RGB565 | GREEN_HI_BIT_MASK_RGB565 | BLUE_HI_BIT_MASK_RGB565); uint32 RGB_HI_BITS_MASKx2 = (RED_HI_BIT_MASK_RGB565 | GREEN_HI_BIT_MASK_RGB565 | BLUE_HI_BIT_MASK_RGB565) << 1; uint32 RGB_REMOVE_LOW_BITS_MASK = ~RGB_LOW_BITS_MASK; uint32 FIRST_COLOR_MASK = FIRST_COLOR_MASK_RGB565; uint32 SECOND_COLOR_MASK = SECOND_COLOR_MASK_RGB565; uint32 THIRD_COLOR_MASK = THIRD_COLOR_MASK_RGB565; uint32 ALPHA_BITS_MASK = ALPHA_BITS_MASK_RGB565; uint32 FIRST_THIRD_COLOR_MASK = 0; uint32 TWO_LOW_BITS_MASK = 0; uint32 HIGH_BITS_SHIFTED_TWO_MASK = 0; uint32 current_graphic_format = RGB565; #endif uint8 GetBank = 0; struct SCheatData Cheat; volatile SoundStatus so; int32 Loop[16]; int32 Echo[24000]; int32 FilterTaps[8]; int32 MixBuffer[SOUND_BUFFER_SIZE]; int32 EchoBuffer[SOUND_BUFFER_SIZE]; int32 DummyEchoBuffer[SOUND_BUFFER_SIZE]; uint32 FIRIndex = 0; uint16 SignExtend [2] = { 0x00, 0xff00 }; //modified per anomie Mode 5 findings int HDMA_ModeByteCounts [8] = { 1, 2, 2, 4, 4, 4, 2, 4 }; uint16 BlackColourMap [256]; uint16 DirectColourMaps [8][256]; uint32 HeadMask [4] = { #ifdef LSB_FIRST 0xffffffff, 0xffffff00, 0xffff0000, 0xff000000 #else 0xffffffff, 0x00ffffff, 0x0000ffff, 0x000000ff #endif }; uint32 TailMask [5] = { #ifdef LSB_FIRST 0x00000000, 0x000000ff, 0x0000ffff, 0x00ffffff, 0xffffffff #else 0x00000000, 0xff000000, 0xffff0000, 0xffffff00, 0xffffffff #endif }; START_EXTERN_C uint8 APUROM [64] = { 0xCD,0xEF,0xBD,0xE8,0x00,0xC6,0x1D,0xD0,0xFC,0x8F,0xAA,0xF4,0x8F, 0xBB,0xF5,0x78,0xCC,0xF4,0xD0,0xFB,0x2F,0x19,0xEB,0xF4,0xD0,0xFC, 0x7E,0xF4,0xD0,0x0B,0xE4,0xF5,0xCB,0xF4,0xD7,0x00,0xFC,0xD0,0xF3, 0xAB,0x01,0x10,0xEF,0x7E,0xF4,0x10,0xEB,0xBA,0xF6,0xDA,0x00,0xBA, 0xF4,0xC4,0xF4,0xDD,0x5D,0xD0,0xDB,0x1F,0x00,0x00,0xC0,0xFF }; #ifdef NETPLAY_SUPPORT struct SNetPlay NetPlay; #endif // Raw SPC700 instruction cycle lengths int32 S9xAPUCycleLengths [256] = { /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */ /* 00 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 4, 6, 8, /* 10 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 6, 5, 2, 2, 4, 6, /* 20 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 4, 5, 4, /* 30 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 6, 5, 2, 2, 3, 8, /* 40 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 4, 6, 6, /* 50 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 4, 5, 2, 2, 4, 3, /* 60 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 4, 5, 5, /* 70 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 5, 5, 2, 2, 3, 6, /* 80 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 2, 4, 5, /* 90 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 5, 5, 2, 2,12, 5, /* A0 */ 3, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 2, 4, 4, /* B0 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 5, 5, 2, 2, 3, 4, /* C0 */ 3, 8, 4, 5, 4, 5, 4, 7, 2, 5, 6, 4, 5, 2, 4, 9, /* D0 */ 2, 8, 4, 5, 5, 6, 6, 7, 4, 5, 5, 5, 2, 2, 6, 3, /* E0 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 4, 5, 3, 4, 3, 4, 3, /* F0 */ 2, 8, 4, 5, 4, 5, 5, 6, 3, 4, 5, 4, 2, 2, 4, 3 }; // Actual data used by CPU emulation, will be scaled by APUReset routine // to be relative to the 65c816 instruction lengths. int32 S9xAPUCycles [256] = { /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */ /* 00 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 4, 6, 8, /* 10 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 6, 5, 2, 2, 4, 6, /* 20 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 4, 5, 4, /* 30 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 6, 5, 2, 2, 3, 8, /* 40 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 4, 6, 6, /* 50 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 4, 5, 2, 2, 4, 3, /* 60 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 4, 5, 5, /* 70 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 5, 5, 2, 2, 3, 6, /* 80 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 6, 5, 4, 5, 2, 4, 5, /* 90 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 5, 5, 2, 2,12, 5, /* A0 */ 3, 8, 4, 5, 3, 4, 3, 6, 2, 6, 4, 4, 5, 2, 4, 4, /* B0 */ 2, 8, 4, 5, 4, 5, 5, 6, 5, 5, 5, 5, 2, 2, 3, 4, /* C0 */ 3, 8, 4, 5, 4, 5, 4, 7, 2, 5, 6, 4, 5, 2, 4, 9, /* D0 */ 2, 8, 4, 5, 5, 6, 6, 7, 4, 5, 5, 5, 2, 2, 6, 3, /* E0 */ 2, 8, 4, 5, 3, 4, 3, 6, 2, 4, 5, 3, 4, 3, 4, 3, /* F0 */ 2, 8, 4, 5, 4, 5, 5, 6, 3, 4, 5, 4, 2, 2, 4, 3 }; END_EXTERN_C