mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-12-27 11:41:49 +01:00
231 lines
10 KiB
C++
231 lines
10 KiB
C++
/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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#include "snes9x.h"
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#include "memmap.h"
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#include "dma.h"
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#include "apu/apu.h"
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#include "fxinst.h"
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#include "fxemu.h"
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#include "srtc.h"
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#include "cheats.h"
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#ifdef NETPLAY_SUPPORT
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#include "netplay.h"
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#endif
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#ifdef DEBUGGER
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#include "debug.h"
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#include "missing.h"
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#endif
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struct SCPUState CPU;
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struct SICPU ICPU;
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struct SRegisters Registers;
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struct SPPU PPU;
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struct InternalPPU IPPU;
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struct SDMA DMA[8];
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struct STimings Timings;
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struct SGFX GFX;
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struct SBG BG;
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struct SLineData LineData[240];
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struct SLineMatrixData LineMatrixData[240];
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struct SDSP0 DSP0;
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struct SDSP1 DSP1;
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struct SDSP2 DSP2;
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struct SDSP3 DSP3;
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struct SDSP4 DSP4;
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struct SSA1 SA1;
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struct SSA1Registers SA1Registers;
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struct FxRegs_s GSU;
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struct FxInfo_s SuperFX;
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struct SST010 ST010;
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struct SST011 ST011;
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struct SST018 ST018;
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struct SOBC1 OBC1;
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struct SSPC7110Snapshot s7snap;
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struct SSRTCSnapshot srtcsnap;
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struct SRTCData RTCData;
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struct SBSX BSX;
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struct SMSU1 MSU1;
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struct SMulti Multi;
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struct SSettings Settings;
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struct SSNESGameFixes SNESGameFixes;
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#ifdef NETPLAY_SUPPORT
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struct SNetPlay NetPlay;
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#endif
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#ifdef DEBUGGER
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struct Missing missing;
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#endif
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struct SCheatData Cheat;
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struct Watch watches[16];
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CMemory Memory;
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char String[513];
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uint8 OpenBus = 0;
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uint8 *HDMAMemPointers[8];
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uint16 BlackColourMap[256];
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uint16 DirectColourMaps[8][256];
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SnesModel M1SNES = { 1, 3, 2 };
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SnesModel M2SNES = { 2, 4, 3 };
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SnesModel *Model = &M1SNES;
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#ifdef GFX_MULTI_FORMAT
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uint32 RED_LOW_BIT_MASK = RED_LOW_BIT_MASK_RGB565;
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uint32 GREEN_LOW_BIT_MASK = GREEN_LOW_BIT_MASK_RGB565;
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uint32 BLUE_LOW_BIT_MASK = BLUE_LOW_BIT_MASK_RGB565;
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uint32 RED_HI_BIT_MASK = RED_HI_BIT_MASK_RGB565;
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uint32 GREEN_HI_BIT_MASK = GREEN_HI_BIT_MASK_RGB565;
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uint32 BLUE_HI_BIT_MASK = BLUE_HI_BIT_MASK_RGB565;
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uint32 MAX_RED = MAX_RED_RGB565;
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uint32 MAX_GREEN = MAX_GREEN_RGB565;
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uint32 MAX_BLUE = MAX_BLUE_RGB565;
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uint32 SPARE_RGB_BIT_MASK = SPARE_RGB_BIT_MASK_RGB565;
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uint32 GREEN_HI_BIT = (MAX_GREEN_RGB565 + 1) >> 1;
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uint32 RGB_LOW_BITS_MASK = (RED_LOW_BIT_MASK_RGB565 | GREEN_LOW_BIT_MASK_RGB565 | BLUE_LOW_BIT_MASK_RGB565);
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uint32 RGB_HI_BITS_MASK = (RED_HI_BIT_MASK_RGB565 | GREEN_HI_BIT_MASK_RGB565 | BLUE_HI_BIT_MASK_RGB565);
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uint32 RGB_HI_BITS_MASKx2 = (RED_HI_BIT_MASK_RGB565 | GREEN_HI_BIT_MASK_RGB565 | BLUE_HI_BIT_MASK_RGB565) << 1;
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uint32 RGB_REMOVE_LOW_BITS_MASK = ~RGB_LOW_BITS_MASK;
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uint32 FIRST_COLOR_MASK = FIRST_COLOR_MASK_RGB565;
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uint32 SECOND_COLOR_MASK = SECOND_COLOR_MASK_RGB565;
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uint32 THIRD_COLOR_MASK = THIRD_COLOR_MASK_RGB565;
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uint32 ALPHA_BITS_MASK = ALPHA_BITS_MASK_RGB565;
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uint32 FIRST_THIRD_COLOR_MASK = 0;
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uint32 TWO_LOW_BITS_MASK = 0;
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uint32 HIGH_BITS_SHIFTED_TWO_MASK = 0;
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#endif
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uint16 SignExtend[2] =
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{
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0x0000,
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0xff00
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};
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int HDMA_ModeByteCounts[8] =
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{
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1, 2, 2, 4, 4, 4, 2, 4
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};
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uint8 mul_brightness[16][32] =
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{
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02 },
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{ 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
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0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x04 },
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{ 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03,
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0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06 },
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{ 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04,
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0x04, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x07, 0x08, 0x08, 0x08 },
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{ 0x00, 0x00, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x05,
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0x05, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x09, 0x09, 0x0a, 0x0a, 0x0a },
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{ 0x00, 0x00, 0x01, 0x01, 0x02, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06,
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0x06, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0c, 0x0c },
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{ 0x00, 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06, 0x07, 0x07,
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0x07, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0e },
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{ 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06, 0x07, 0x07, 0x08,
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0x09, 0x09, 0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0f, 0x0f, 0x10, 0x11 },
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{ 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, 0x07, 0x07, 0x08, 0x08, 0x09,
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0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x11, 0x12, 0x13 },
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{ 0x00, 0x01, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x05, 0x06, 0x07, 0x07, 0x08, 0x09, 0x09, 0x0a,
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0x0b, 0x0b, 0x0c, 0x0d, 0x0d, 0x0e, 0x0f, 0x0f, 0x10, 0x11, 0x11, 0x12, 0x13, 0x13, 0x14, 0x15 },
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{ 0x00, 0x01, 0x01, 0x02, 0x03, 0x04, 0x04, 0x05, 0x06, 0x07, 0x07, 0x08, 0x09, 0x0a, 0x0a, 0x0b,
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0x0c, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f, 0x10, 0x11, 0x12, 0x12, 0x13, 0x14, 0x15, 0x15, 0x16, 0x17 },
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{ 0x00, 0x01, 0x02, 0x02, 0x03, 0x04, 0x05, 0x06, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0a, 0x0b, 0x0c,
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0x0d, 0x0e, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x12, 0x13, 0x14, 0x15, 0x16, 0x16, 0x17, 0x18, 0x19 },
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{ 0x00, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0a, 0x0b, 0x0c, 0x0d,
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0x0e, 0x0f, 0x10, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1a, 0x1b },
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{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
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0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d },
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{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f }
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};
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uint8 S9xOpLengthsM0X0[256] =
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{
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// 0 1 2 3 4 5 6 7 8 9 A B C D E F
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 0
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
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3, 2, 4, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 2
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
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1, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 4
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
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1, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 6
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
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2, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 8
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
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3, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // A
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
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3, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // C
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
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3, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // E
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
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};
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uint8 S9xOpLengthsM0X1[256] =
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{
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// 0 1 2 3 4 5 6 7 8 9 A B C D E F
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 0
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
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3, 2, 4, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 2
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
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1, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 4
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
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1, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 6
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
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2, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 8
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // A
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // C
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // E
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
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};
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uint8 S9xOpLengthsM1X0[256] =
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{
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// 0 1 2 3 4 5 6 7 8 9 A B C D E F
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2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 0
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
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3, 2, 4, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 2
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
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1, 2, 2, 2, 3, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 4
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
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1, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 6
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
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2, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 8
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
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3, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // A
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
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3, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // C
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
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3, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // E
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
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};
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uint8 S9xOpLengthsM1X1[256] =
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{
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// 0 1 2 3 4 5 6 7 8 9 A B C D E F
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2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 0
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
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3, 2, 4, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 2
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
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1, 2, 2, 2, 3, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 4
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
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1, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 6
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
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2, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 8
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
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2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // A
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
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2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // C
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2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
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2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // E
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2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
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};
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