diff options
Diffstat (limited to 'old/snaporig.c')
| -rw-r--r-- | old/snaporig.c | 411 |
1 files changed, 0 insertions, 411 deletions
diff --git a/old/snaporig.c b/old/snaporig.c deleted file mode 100644 index af9263a..0000000 --- a/old/snaporig.c +++ /dev/null @@ -1,411 +0,0 @@ -/* - * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. - * - * (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and - * Jerremy Koot (jkoot@snes9x.com) - * - * Super FX C emulator code - * (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) 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 (gary.henderson@ntlworld.com). - * - * 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 <string.h> -#include <ctype.h> -#include <stdlib.h> - -#if defined(__unix) || defined(__linux) || defined(__sun) || defined(__DJGPP) -//#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#endif - -#include "snapshot.h" -#include "snaporig.h" -#include "memmap.h" -#include "snes9x.h" -#include "65c816.h" -#include "ppu.h" -#include "cpuexec.h" -#include "display.h" -#include "apu.h" -#include "soundux.h" - -struct SOrigPPU OrigPPU; -struct SOrigDMA OrigDMA [8]; -struct SOrigRegisters OrigRegisters; -struct SOrigCPUState OrigCPU; -struct SOrigAPU OrigAPU; -SOrigSoundData OrigSoundData; -struct SOrigAPURegisters OrigAPURegisters; -char ROMFilename [1025]; - -static int ReadOrigSnapshot(STREAM); - -bool8_32 S9xLoadOrigSnapshot(const char* filename) -{ - STREAM snapshot = NULL; - if (S9xOpenSnapshotFile(filename, TRUE, &snapshot)) - { - int result; - if ((result = ReadOrigSnapshot(snapshot)) != SUCCESS) - { - S9xCloseSnapshotFile(snapshot); - return (FALSE); - } - S9xCloseSnapshotFile(snapshot); - return (TRUE); - } - return (FALSE); -} - -static int ReadBlock(const char* key, void* block, int max_len, STREAM snap) -{ - char buffer [20]; - int len = 0; - int rem = 0; - - if (READ_STREAM(buffer, 11, snap) != 11 || - strncmp(buffer, key, 4) != 0 || - (len = atoi(&buffer [4])) == 0) - return (WRONG_FORMAT); - - if (len > max_len) - { - rem = len - max_len; - len = max_len; - } - if (READ_STREAM(block, len, snap) != len) - return (WRONG_FORMAT); - - if (rem) - { - char* junk = new char [rem]; - READ_STREAM(junk, rem, snap); - delete junk; - } - - return (SUCCESS); -} - -static int ReadOrigSnapshot(STREAM snap) -{ - char buffer [_MAX_PATH]; - char rom_filename [_MAX_PATH]; - int result; - int i; - int j; - - int version; - int len = strlen(ORIG_SNAPSHOT_MAGIC) + 1 + 4 + 1; - if (READ_STREAM(buffer, len, snap) != len) - return (WRONG_FORMAT); - if (strncmp(buffer, ORIG_SNAPSHOT_MAGIC, strlen(ORIG_SNAPSHOT_MAGIC)) != 0) - return (WRONG_FORMAT); - if ((version = atoi(&buffer [strlen(SNAPSHOT_MAGIC) + 1])) > ORIG_SNAPSHOT_VERSION) - return (WRONG_VERSION); - - if ((result = ReadBlock("NAM:", rom_filename, _MAX_PATH, snap)) != SUCCESS) - return (result); - - if ((result = ReadBlock("HiR:", buffer, 0x41, snap)) != SUCCESS) - return (result); - - if (strcasecmp(rom_filename, Memory.ROMFilename) != 0 && - strcasecmp(S9xBasename(rom_filename), S9xBasename(Memory.ROMFilename)) != 0) - { - S9xMessage(S9X_WARNING, S9X_FREEZE_ROM_NAME, - "Current loaded ROM image doesn't match that required by freeze-game file."); - } - - S9xReset(); - S9xSetSoundMute(TRUE); - if ((result = ReadBlock("CPU:", &OrigCPU, sizeof(OrigCPU), snap)) != SUCCESS) - return (result); - OrigCPU.FastROMSpeed = OrigCPU.FastROMSpeed_old; - Memory.FixROMSpeed(); - if (version == 3) - { - OrigCPU.Cycles = OrigCPU.Cycles_old; - OrigCPU.NextEvent = OrigCPU.NextEvent_old; - OrigCPU.V_Counter = OrigCPU.V_Counter_old; - OrigCPU.MemSpeed = OrigCPU.MemSpeed_old; - OrigCPU.MemSpeedx2 = OrigCPU.MemSpeedx2_old; - OrigCPU.FastROMSpeed = OrigCPU.FastROMSpeed_old; - } - CPU.Flags = OrigCPU.Flags; - CPU.BranchSkip = OrigCPU.BranchSkip; - CPU.NMIActive = OrigCPU.NMIActive; - CPU.IRQActive = OrigCPU.IRQActive; - CPU.WaitingForInterrupt = OrigCPU.WaitingForInterrupt; - CPU.WhichEvent = OrigCPU.WhichEvent; - CPU.Cycles = OrigCPU.Cycles; - CPU.NextEvent = OrigCPU.NextEvent; - CPU.V_Counter = OrigCPU.V_Counter; - CPU.MemSpeed = OrigCPU.MemSpeed; - CPU.MemSpeedx2 = OrigCPU.MemSpeedx2; - CPU.FastROMSpeed = OrigCPU.FastROMSpeed; - - if ((result = ReadBlock("REG:", &OrigRegisters, sizeof(OrigRegisters), snap)) != SUCCESS) - return (result); - - Registers = *(struct SRegisters*) &OrigRegisters; - - if ((result = ReadBlock("PPU:", &OrigPPU, sizeof(OrigPPU), snap)) != SUCCESS) - return (result); - - if (version == 2) - { - OrigPPU.OBJNameSelect = OrigPPU.OBJNameSelect_old << 13; - OrigPPU.OBJNameBase <<= 1; - OrigPPU.OBJNameSelect <<= 13; - } - PPU.BGMode = OrigPPU.BGMode; - PPU.BG3Priority = OrigPPU.BG3Priority; - PPU.Brightness = OrigPPU.Brightness; - - PPU.VMA.High = OrigPPU.VMA.High; - PPU.VMA.Increment = OrigPPU.VMA.Increment; - PPU.VMA.Address = OrigPPU.VMA.Address; - PPU.VMA.Mask1 = OrigPPU.VMA.Mask1; - PPU.VMA.FullGraphicCount = OrigPPU.VMA.FullGraphicCount; - PPU.VMA.Shift = OrigPPU.VMA.Shift; - - for (i = 0; i < 4; i++) - { - PPU.BG[i].SCBase = OrigPPU.BG[i].SCBase; - PPU.BG[i].VOffset = OrigPPU.BG[i].VOffset; - PPU.BG[i].HOffset = OrigPPU.BG[i].HOffset; - PPU.BG[i].BGSize = OrigPPU.BG[i].BGSize; - PPU.BG[i].NameBase = OrigPPU.BG[i].NameBase; - PPU.BG[i].SCSize = OrigPPU.BG[i].SCSize; - } - - PPU.CGFLIP = OrigPPU.CGFLIP; - for (i = 0; i < 256; i++) - PPU.CGDATA [i] = OrigPPU.CGDATA [i]; - PPU.FirstSprite = OrigPPU.FirstSprite; - for (i = 0; i < 128; i++) - { - PPU.OBJ[i].HPos = OrigPPU.OBJ [i].HPos; - PPU.OBJ[i].VPos = OrigPPU.OBJ [i].VPos; - PPU.OBJ[i].Name = OrigPPU.OBJ [i].Name; - PPU.OBJ[i].VFlip = OrigPPU.OBJ [i].VFlip; - PPU.OBJ[i].HFlip = OrigPPU.OBJ [i].HFlip; - PPU.OBJ[i].Priority = OrigPPU.OBJ [i].Priority; - PPU.OBJ[i].Palette = OrigPPU.OBJ [i].Palette; - PPU.OBJ[i].Size = OrigPPU.OBJ [i].Size; - } - PPU.OAMPriorityRotation = OrigPPU.OAMPriorityRotation; - PPU.OAMAddr = OrigPPU.OAMAddr; - - PPU.OAMFlip = OrigPPU.OAMFlip; - PPU.OAMTileAddress = OrigPPU.OAMTileAddress; - PPU.IRQVBeamPos = OrigPPU.IRQVBeamPos; - PPU.IRQHBeamPos = OrigPPU.IRQHBeamPos; - PPU.VBeamPosLatched = OrigPPU.VBeamPosLatched; - PPU.HBeamPosLatched = OrigPPU.HBeamPosLatched; - - PPU.HBeamFlip = OrigPPU.HBeamFlip; - PPU.VBeamFlip = OrigPPU.VBeamFlip; - PPU.HVBeamCounterLatched = OrigPPU.HVBeamCounterLatched; - - PPU.MatrixA = OrigPPU.MatrixA; - PPU.MatrixB = OrigPPU.MatrixB; - PPU.MatrixC = OrigPPU.MatrixC; - PPU.MatrixD = OrigPPU.MatrixD; - PPU.CentreX = OrigPPU.CentreX; - PPU.CentreY = OrigPPU.CentreY; - PPU.Joypad1ButtonReadPos = OrigPPU.Joypad1ButtonReadPos; - PPU.Joypad2ButtonReadPos = OrigPPU.Joypad2ButtonReadPos; - PPU.Joypad3ButtonReadPos = OrigPPU.Joypad3ButtonReadPos; - - PPU.CGADD = OrigPPU.CGADD; - PPU.FixedColourRed = OrigPPU.FixedColourRed; - PPU.FixedColourGreen = OrigPPU.FixedColourGreen; - PPU.FixedColourBlue = OrigPPU.FixedColourBlue; - PPU.SavedOAMAddr = OrigPPU.SavedOAMAddr; - PPU.ScreenHeight = OrigPPU.ScreenHeight; - PPU.WRAM = OrigPPU.WRAM; - PPU.ForcedBlanking = OrigPPU.ForcedBlanking; - PPU.OBJNameSelect = OrigPPU.OBJNameSelect; - PPU.OBJSizeSelect = OrigPPU.OBJSizeSelect; - PPU.OBJNameBase = OrigPPU.OBJNameBase; - PPU.OAMReadFlip = OrigPPU.OAMReadFlip; - memmove(PPU.OAMData, OrigPPU.OAMData, sizeof(PPU.OAMData)); - PPU.VTimerEnabled = OrigPPU.VTimerEnabled; - PPU.HTimerEnabled = OrigPPU.HTimerEnabled; - PPU.HTimerPosition = OrigPPU.HTimerPosition; - PPU.Mosaic = OrigPPU.Mosaic; - memmove(PPU.BGMosaic, OrigPPU.BGMosaic, sizeof(PPU.BGMosaic)); - PPU.Mode7HFlip = OrigPPU.Mode7HFlip; - PPU.Mode7VFlip = OrigPPU.Mode7VFlip; - PPU.Mode7Repeat = OrigPPU.Mode7Repeat; - PPU.Window1Left = OrigPPU.Window1Left; - PPU.Window1Right = OrigPPU.Window1Right; - PPU.Window2Left = OrigPPU.Window2Left; - PPU.Window2Right = OrigPPU.Window2Right; - for (i = 0; i < 6; i++) - { - PPU.ClipWindowOverlapLogic [i] = OrigPPU.ClipWindowOverlapLogic [i]; - PPU.ClipWindow1Enable [i] = OrigPPU.ClipWindow1Enable [i]; - PPU.ClipWindow2Enable [i] = OrigPPU.ClipWindow2Enable [i]; - PPU.ClipWindow1Inside [i] = OrigPPU.ClipWindow1Inside [i]; - PPU.ClipWindow2Inside [i] = OrigPPU.ClipWindow2Inside [i]; - } - PPU.CGFLIPRead = OrigPPU.CGFLIPRead; - PPU.Need16x8Mulitply = OrigPPU.Need16x8Mulitply; - - IPPU.ColorsChanged = TRUE; - IPPU.OBJChanged = TRUE; - S9xFixColourBrightness(); - IPPU.RenderThisFrame = FALSE; - - if ((result = ReadBlock("DMA:", OrigDMA, sizeof(OrigDMA), snap)) != SUCCESS) - return (result); - - for (i = 0; i < 8; i++) - { - DMA[i].TransferDirection = OrigDMA[i].TransferDirection; - DMA[i].AAddressFixed = OrigDMA[i].AAddressFixed; - DMA[i].AAddressDecrement = OrigDMA[i].AAddressDecrement; - DMA[i].TransferMode = OrigDMA[i].TransferMode; - DMA[i].ABank = OrigDMA[i].ABank; - DMA[i].AAddress = OrigDMA[i].AAddress; - DMA[i].Address = OrigDMA[i].Address; - DMA[i].BAddress = OrigDMA[i].BAddress; - DMA[i].TransferBytes = OrigDMA[i].TransferBytes; - DMA[i].HDMAIndirectAddressing = OrigDMA[i].HDMAIndirectAddressing; - DMA[i].IndirectAddress = OrigDMA[i].IndirectAddress; - DMA[i].IndirectBank = OrigDMA[i].IndirectBank; - DMA[i].Repeat = OrigDMA[i].Repeat; - DMA[i].LineCount = OrigDMA[i].LineCount; - DMA[i].FirstLine = OrigDMA[i].FirstLine; - } - - if ((result = ReadBlock("VRA:", Memory.VRAM, 0x10000, snap)) != SUCCESS) - return (result); - if ((result = ReadBlock("RAM:", Memory.RAM, 0x20000, snap)) != SUCCESS) - return (result); - if ((result = ReadBlock("SRA:", SRAM, 0x10000, snap)) != SUCCESS) - return (result); - if ((result = ReadBlock("FIL:", Memory.FillRAM, 0x8000, snap)) != SUCCESS) - return (result); - if (ReadBlock("APU:", &OrigAPU, sizeof(OrigAPU), snap) == SUCCESS) - { - APU = *(struct SAPU*) &OrigAPU; - - if ((result = ReadBlock("ARE:", &OrigAPURegisters, - sizeof(OrigAPURegisters), snap)) != SUCCESS) - return (result); - APURegisters = *(struct SAPURegisters*) &OrigAPURegisters; - if ((result = ReadBlock("ARA:", IAPU.RAM, 0x10000, snap)) != SUCCESS) - return (result); - if ((result = ReadBlock("SOU:", &OrigSoundData, - sizeof(SOrigSoundData), snap)) != SUCCESS) - return (result); - - SoundData.master_volume_left = OrigSoundData.master_volume_left; - SoundData.master_volume_right = OrigSoundData.master_volume_right; - SoundData.echo_volume_left = OrigSoundData.echo_volume_left; - SoundData.echo_volume_right = OrigSoundData.echo_volume_right; - SoundData.echo_enable = OrigSoundData.echo_enable; - SoundData.echo_feedback = OrigSoundData.echo_feedback; - SoundData.echo_ptr = OrigSoundData.echo_ptr; - SoundData.echo_buffer_size = OrigSoundData.echo_buffer_size; - SoundData.echo_write_enabled = OrigSoundData.echo_write_enabled; - SoundData.echo_channel_enable = OrigSoundData.echo_channel_enable; - SoundData.pitch_mod = OrigSoundData.pitch_mod; - - for (i = 0; i < 3; i++) - SoundData.dummy [i] = OrigSoundData.dummy [i]; - for (i = 0; i < NUM_CHANNELS; i++) - { - SoundData.channels [i].state = OrigSoundData.channels [i].state; - SoundData.channels [i].type = OrigSoundData.channels [i].type; - SoundData.channels [i].volume_left = OrigSoundData.channels [i].volume_left; - SoundData.channels [i].volume_right = OrigSoundData.channels [i].volume_right; - SoundData.channels [i].hertz = OrigSoundData.channels [i].frequency; - SoundData.channels [i].count = OrigSoundData.channels [i].count; - SoundData.channels [i].loop = OrigSoundData.channels [i].loop; - SoundData.channels [i].envx = OrigSoundData.channels [i].envx; - SoundData.channels [i].left_vol_level = OrigSoundData.channels [i].left_vol_level; - SoundData.channels [i].right_vol_level = OrigSoundData.channels [i].right_vol_level; - SoundData.channels [i].envx_target = OrigSoundData.channels [i].envx_target; - SoundData.channels [i].env_error = OrigSoundData.channels [i].env_error; - SoundData.channels [i].erate = OrigSoundData.channels [i].erate; - SoundData.channels [i].direction = OrigSoundData.channels [i].direction; - SoundData.channels [i].attack_rate = OrigSoundData.channels [i].attack_rate; - SoundData.channels [i].decay_rate = OrigSoundData.channels [i].decay_rate; - SoundData.channels [i].sustain_rate = OrigSoundData.channels [i].sustain_rate; - SoundData.channels [i].release_rate = OrigSoundData.channels [i].release_rate; - SoundData.channels [i].sustain_level = OrigSoundData.channels [i].sustain_level; - SoundData.channels [i].sample = OrigSoundData.channels [i].sample; - for (j = 0; j < 16; j++) - SoundData.channels [i].decoded [j] = OrigSoundData.channels [i].decoded [j]; - - for (j = 0; j < 2; j++) - SoundData.channels [i].previous [j] = OrigSoundData.channels [i].previous [j]; - - SoundData.channels [i].sample_number = OrigSoundData.channels [i].sample_number; - SoundData.channels [i].last_block = OrigSoundData.channels [i].last_block; - SoundData.channels [i].needs_decode = OrigSoundData.channels [i].needs_decode; - SoundData.channels [i].block_pointer = OrigSoundData.channels [i].block_pointer; - SoundData.channels [i].sample_pointer = OrigSoundData.channels [i].sample_pointer; - SoundData.channels [i].mode = OrigSoundData.channels [i].mode; - } - - S9xSetSoundMute(FALSE); - IAPU.PC = IAPU.RAM + IAPU.PC; - S9xAPUUnpackStatus(); - if (APUCheckDirectPage()) - IAPU.DirectPage = IAPU.RAM + 0x100; - else - IAPU.DirectPage = IAPU.RAM; - Settings.APUEnabled = TRUE; - CPU.APU_APUExecuting = TRUE; - } - else - { - Settings.APUEnabled = FALSE; - CPU.APU_APUExecuting = FALSE; - S9xSetSoundMute(TRUE); - } - S9xFixSoundAfterSnapshotLoad(); - ICPU.ShiftedPB = Registers.PB << 16; - ICPU.ShiftedDB = Registers.DB << 16; - S9xSetPCBase(ICPU.ShiftedPB + Registers.PC, &CPU); - S9xUnpackStatus(); - S9xFixCycles(&Registers, &ICPU); - S9xReschedule(); - - return (SUCCESS); -} |