From a6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a Mon Sep 17 00:00:00 2001 From: aliaspider Date: Wed, 29 Oct 2014 05:36:07 +0100 Subject: start moving everything to C --- source/globals.c | 349 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 349 insertions(+) create mode 100644 source/globals.c (limited to 'source/globals.c') diff --git a/source/globals.c b/source/globals.c new file mode 100644 index 0000000..670dc92 --- /dev/null +++ b/source/globals.c @@ -0,0 +1,349 @@ +/******************************************************************************* + 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. +*******************************************************************************/ + +#include "snes9x.h" +#include "memmap.h" +#include "ppu.h" +#include "dsp1.h" +#include "missing.h" +#include "cpuexec.h" +#include "apu.h" +#include "dma.h" +#include "fxemu.h" +#include "gfx.h" +#include "soundux.h" +#include "cheats.h" +#include "sa1.h" +#include "spc7110.h" + +START_EXTERN_C +char String[513]; + +struct Missing missing; + +struct SICPU ICPU; + +struct SCPUState CPU; + +struct SAPU APU; + +struct SIAPU IAPU; + +struct SSettings Settings; + +struct SDSP1 DSP1; + +struct SSA1 SA1; + +SSoundData SoundData; + +SnesModel M1SNES={1,3,2}; +SnesModel M2SNES={2,4,3}; +SnesModel* Model=&M1SNES; + + +uint8 *SRAM = NULL; +uint8 *ROM = NULL; +uint8 *RegRAM = NULL; +uint8 *C4RAM = NULL; + +long OpAddress = 0; + +CMemory Memory; + +struct SSNESGameFixes SNESGameFixes; + +uint8 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]; + +uint8 Mode7Depths [2]; +NormalTileRenderer DrawTilePtr = NULL; +ClippedTileRenderer DrawClippedTilePtr = NULL; +NormalTileRenderer DrawHiResTilePtr = NULL; +ClippedTileRenderer DrawHiResClippedTilePtr = NULL; +LargePixelRenderer DrawLargePixelPtr = NULL; + +uint32 odd_high[4][16]; +uint32 odd_low[4][16]; +uint32 even_high[4][16]; +uint32 even_low[4][16]; + +struct SCheatData Cheat; + +SoundStatus so; + +int Echo [24000]; +int DummyEchoBuffer [SOUND_BUFFER_SIZE]; +int MixBuffer [SOUND_BUFFER_SIZE]; +int EchoBuffer [SOUND_BUFFER_SIZE]; +int FilterTaps [8]; +unsigned long Z = 0; +int Loop [16]; + +uint16 SignExtend [2] = { + 0x00, 0xff00 +}; + +//modified per anomie Mode 5 findings +int HDMA_ModeByteCounts [8] = { + 1, 2, 2, 4, 4, 4, 2, 4 +}; + +uint8 BitShifts[8][4] = +{ + {2, 2, 2, 2}, // 0 + {4, 4, 2, 0}, // 1 + {4, 4, 0, 0}, // 2 + {8, 4, 0, 0}, // 3 + {8, 2, 0, 0}, // 4 + {4, 2, 0, 0}, // 5 + {4, 0, 0, 0}, // 6 + {8, 0, 0, 0} // 7 +}; +uint8 TileShifts[8][4] = +{ + {4, 4, 4, 4}, // 0 + {5, 5, 4, 0}, // 1 + {5, 5, 0, 0}, // 2 + {6, 5, 0, 0}, // 3 + {6, 4, 0, 0}, // 4 + {5, 4, 0, 0}, // 5 + {5, 0, 0, 0}, // 6 + {6, 0, 0, 0} // 7 +}; +uint8 PaletteShifts[8][4] = +{ + {2, 2, 2, 2}, // 0 + {4, 4, 2, 0}, // 1 + {4, 4, 0, 0}, // 2 + {0, 4, 0, 0}, // 3 + {0, 2, 0, 0}, // 4 + {4, 2, 0, 0}, // 5 + {4, 0, 0, 0}, // 6 + {0, 0, 0, 0} // 7 +}; +uint8 PaletteMasks[8][4] = +{ + {7, 7, 7, 7}, // 0 + {7, 7, 7, 0}, // 1 + {7, 7, 0, 0}, // 2 + {0, 7, 0, 0}, // 3 + {0, 7, 0, 0}, // 4 + {7, 7, 0, 0}, // 5 + {7, 0, 0, 0}, // 6 + {0, 0, 0, 0} // 7 +}; +uint8 Depths[8][4] = +{ + {TILE_2BIT, TILE_2BIT, TILE_2BIT, TILE_2BIT}, // 0 + {TILE_4BIT, TILE_4BIT, TILE_2BIT, 0}, // 1 + {TILE_4BIT, TILE_4BIT, 0, 0}, // 2 + {TILE_8BIT, TILE_4BIT, 0, 0}, // 3 + {TILE_8BIT, TILE_2BIT, 0, 0}, // 4 + {TILE_4BIT, TILE_2BIT, 0, 0}, // 5 + {TILE_4BIT, 0, 0, 0}, // 6 + {0, 0, 0, 0} // 7 +}; +uint8 BGSizes [2] = { + 8, 16 +}; +uint16 DirectColourMaps [8][256]; + +long FilterValues[4][2] = +{ + {0, 0}, + {240, 0}, + {488, -240}, + {460, -208} +}; + +int NoiseFreq [32] = { + 0, 16, 21, 25, 31, 42, 50, 63, 84, 100, 125, 167, 200, 250, 333, + 400, 500, 667, 800, 1000, 1300, 1600, 2000, 2700, 3200, 4000, + 5300, 6400, 8000, 10700, 16000, 32000 +}; + +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 +}; + + +// Raw SPC700 instruction cycle lengths +uint16 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, 4, 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. +uint16 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, 4, 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 + -- cgit v1.2.3