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globals.cpp
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globals.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 "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 "srtc.h"
#if not (defined(__GP32__))
#include "netplay.h"
#endif
#ifdef ME_SOUND
int apu_ram_write_cpt2_main;
int apu_event1_cpt2_main;
#endif
//int old_cpu_cycles,cpu_glob_cycles;
struct SDSP1 DSP1;
struct SSPC7110Snapshot s7snap;
struct SSRTCSnapshot srtcsnap;
struct SRTCData RTCData;
START_EXTERN_C
char String[513];
struct Missing missing;
struct SCPUPACK __attribute__((aligned(64))) CPUPack;
struct SSettings Settings;
struct SSA1Registers SA1Registers;
struct SSA1 SA1;
//struct SSA1PACK* Uncache_SA1Pack_p = (SSA1PACK*)UNCACHE_PTR(&SA1Pack);
//uint8 * __attribute__((aligned(64))) Map [MEMMAP_NUM_BLOCKS];
#if 0
SMEMMAPBLOCKS __attribute__((aligned(64))) GetByteMap[MEMMAP_NUM_BLOCKS];
SMEMMAPBLOCKS __attribute__((aligned(64))) GetWordMap[MEMMAP_NUM_BLOCKS];
SMEMMAPBLOCKS __attribute__((aligned(64))) SetByteMap[MEMMAP_NUM_BLOCKS];
SMEMMAPBLOCKS __attribute__((aligned(64))) SetWordMap[MEMMAP_NUM_BLOCKS];
#endif
uint8 ** const Map =(uint8 ** )0x00010000;//0x00010000 0x00014000 need 0x1000*4
uint8 __attribute__((aligned(64))) SRAM[0x20000+MAX_RTC_INDEX+16];
uint8 *ROM_GLOBAL;
//uint8 *RegRAM = NULL;
uint8 __attribute__((aligned(64)))RAM[0x20000];
uint8 __attribute__((aligned(64))) VRAM[0x10000];
//uint8 *VRAMmode7 = NULL;
uint8 *BWRAM = NULL;
#ifdef _BSX_151_
uint8 *BSRAM; //add azz 080517
uint8 *BIOSROM; // BS
#include "bsx.h"
struct SBSX BSX;
#endif
CMemory Memory;
struct SSNESGameFixes SNESGameFixes;
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];
struct SPPUPACK PPUPack;
uint8 *HDMAMemPointers [8];
uint8 *HDMABasePointers [8];
SGPUPACK __attribute__((aligned(64))) GPUPack;
//struct SBG BG;
//struct SGFX GPUPack.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;
NormalTileRendererN DrawTilePtrN = NULL;
ClippedTileRendererN DrawClippedTilePtrN = NULL;
NormalTileRendererN DrawHiResTilePtrN = NULL;
ClippedTileRendererN DrawHiResClippedTilePtrN = NULL;
LargePixelRendererN DrawLargePixelPtrN = NULL;
uint32 __attribute__((aligned(32))) odd_high[4][16];
uint32 __attribute__((aligned(32))) odd_low[4][16];
uint32 __attribute__((aligned(32))) even_high[4][16];
uint32 __attribute__((aligned(32))) even_low[4][16];
#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;
uint16 SignExtend [2] = {
0x00, 0xff00
};
int HDMA_ModeByteCounts [8] = {
1, 2, 2, 4, 4, 0, 0, 0
};
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_8BIT, 0, 0, 0}, // 6
{0, 0, 0, 0} // 7
};
uint8 BGSizes [2] = {
8, 16
};
uint16 __attribute__((aligned(64))) 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 __attribute__((aligned(64))) 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
uint8 __attribute__((aligned(64))) 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 __attribute__((aligned(64))) 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
};
#ifdef NETPLAY_SUPPORT
struct SNetPlay NetPlay;
#endif
END_EXTERN_C