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Diffstat (limited to 'src/snes9x.h')
| -rw-r--r-- | src/snes9x.h | 439 |
1 files changed, 439 insertions, 0 deletions
diff --git a/src/snes9x.h b/src/snes9x.h new file mode 100644 index 0000000..be7bfd0 --- /dev/null +++ b/src/snes9x.h @@ -0,0 +1,439 @@ +/*
+ * 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.
+ */
+#ifndef _SNES9X_H_
+#define _SNES9X_H_
+
+#define VERSION "1.39"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef __WIN32__
+#include "..\wsnes9x.h"
+#include "..\zlib\zlib.h"
+#endif
+
+#include "port.h"
+#include "65c816.h"
+#include "messages.h"
+
+#if defined(USE_GLIDE) && !defined(GFX_MULTI_FORMAT)
+#define GFX_MULTI_FORMAT
+#endif
+
+#define ROM_NAME_LEN 23
+
+#ifdef ZLIB
+//#ifndef __WIN32__
+#include "zlib.h"
+//#endif
+#define STREAM gzFile
+#define READ_STREAM(p,l,s) gzread (s,p,l)
+#define WRITE_STREAM(p,l,s) gzwrite (s,p,l)
+#define OPEN_STREAM(f,m) gzopen (f,m)
+#define CLOSE_STREAM(s) gzclose (s)
+#define SEEK_STREAM(p,r,s) gzseek(s,p,r)
+#else
+#ifdef __GP32__
+#define STREAM long * //F_HANDLE *
+#define READ_STREAM(p,l,s) gp32_fread ((unsigned char*)p,(long)l,s)
+#define WRITE_STREAM(p,l,s) gp32_fwrite ((unsigned char*)p,(long)l,s)
+#define OPEN_STREAM(f,m) gp32_fopen ((char*)f,(char*)m)
+#define CLOSE_STREAM(s) gp32_fclose (s)
+#define SEEK_STREAM(p,r,s) gp32_fseek(p,r,s)
+
+#else
+#define STREAM FILE *
+#define READ_STREAM(p,l,s) fread (p,1,l,s)
+#define WRITE_STREAM(p,l,s) fwrite (p,1,l,s)
+#define OPEN_STREAM(f,m) fopen (f,m)
+#define CLOSE_STREAM(s) fclose (s)
+#define SEEK_STREAM(p,r,s) fseek(s,p,r)
+#define FROM_CURRENT SEEK_CUR
+#endif
+#endif
+
+
+/* SNES screen width and height */
+#define SNES_WIDTH 256
+#define SNES_HEIGHT 224
+#define SNES_HEIGHT_EXTENDED 239
+#define IMAGE_WIDTH (Settings.SupportHiRes ? SNES_WIDTH * 2 : SNES_WIDTH)
+#define IMAGE_HEIGHT (Settings.SupportHiRes ? SNES_HEIGHT_EXTENDED * 2 : SNES_HEIGHT_EXTENDED)
+
+#define SNES_MAX_NTSC_VCOUNTER 262
+#define SNES_MAX_PAL_VCOUNTER 312
+#define SNES_HCOUNTER_MAX 342
+#define SPC700_TO_65C816_RATIO 2
+#define AUTO_FRAMERATE 200
+
+#define PPU_IGNORE_FIXEDCOLCHANGES (1<<0)
+#define PPU_IGNORE_WINDOW (1<<1)
+#define PPU_IGNORE_ADDSUB (1<<2)
+#define PPU_IGNORE_PALWRITE (1<<3)
+#define GFX_IGNORE_OBJ (1<<4)
+#define GFX_IGNORE_BG0 (1<<5)
+#define GFX_IGNORE_BG1 (1<<6)
+#define GFX_IGNORE_BG2 (1<<7)
+#define GFX_IGNORE_BG3 (1<<8)
+
+// NTSC master clock signal 21.47727MHz
+// PPU: master clock / 4
+// 1 / PPU clock * 342 -> 63.695us
+// 63.695us / (1 / 3.579545MHz) -> 228 cycles per scanline
+// From Earth Worm Jim: APU executes an average of 65.14285714 cycles per
+// scanline giving an APU clock speed of 1.022731096MHz
+
+// PAL master clock signal 21.28137MHz
+// PPU: master clock / 4
+// 1 / PPU clock * 342 -> 64.281us
+// 64.281us / (1 / 3.546895MHz) -> 228 cycles per scanline.
+
+//#define SNES_SCANLINE_TIME (63.695e-6)
+//#define SNES_CLOCK_SPEED (3579545)
+
+//#define SNES_CLOCK_LEN (1.0 / SNES_CLOCK_SPEED)
+
+//#define SNES_APUTIMER2_CYCLEx10000 ((uint32) 3355824)
+
+#ifdef VAR_CYCLES
+//#define SNES_CYCLES_PER_SCANLINE ((uint32) ((SNES_SCANLINE_TIME / SNES_CLOCK_LEN) * 6 + 0.5))
+#define SNES_CYCLES_PER_SCANLINE ((uint32)(228*6))
+#else
+//#define SNES_CYCLES_PER_SCANLINE ((uint32) (SNES_SCANLINE_TIME / SNES_CLOCK_LEN + 0.5))
+#define SNES_CYCLES_PER_SCANLINE ((uint32)(228))
+#endif
+
+#define SNES_TR_MASK (1 << 4)
+#define SNES_TL_MASK (1 << 5)
+#define SNES_X_MASK (1 << 6)
+#define SNES_A_MASK (1 << 7)
+#define SNES_RIGHT_MASK (1 << 8)
+#define SNES_LEFT_MASK (1 << 9)
+#define SNES_DOWN_MASK (1 << 10)
+#define SNES_UP_MASK (1 << 11)
+#define SNES_START_MASK (1 << 12)
+#define SNES_SELECT_MASK (1 << 13)
+#define SNES_Y_MASK (1 << 14)
+#define SNES_B_MASK (1 << 15)
+
+enum {
+ SNES_MULTIPLAYER5,
+ SNES_JOYPAD,
+ SNES_MOUSE_SWAPPED,
+ SNES_MOUSE,
+ SNES_SUPERSCOPE,
+ SNES_JUSTIFIER,
+ SNES_JUSTIFIER_2,
+ SNES_MAX_CONTROLLER_OPTIONS
+};
+
+#define DEBUG_MODE_FLAG (1 << 0)
+#define TRACE_FLAG (1 << 1)
+#define SINGLE_STEP_FLAG (1 << 2)
+#define BREAK_FLAG (1 << 3)
+#define SCAN_KEYS_FLAG (1 << 4)
+#define SAVE_SNAPSHOT_FLAG (1 << 5)
+#define DELAYED_NMI_FLAG (1 << 6)
+#define NMI_FLAG (1 << 7)
+#define PROCESS_SOUND_FLAG (1 << 8)
+#define FRAME_ADVANCE_FLAG (1 << 9)
+#define DELAYED_NMI_FLAG2 (1 << 10)
+#define IRQ_PENDING_FLAG (1 << 11)
+
+#ifdef VAR_CYCLES
+#define ONE_CYCLE 6
+#define SLOW_ONE_CYCLE 8
+#define TWO_CYCLES 12
+#else
+#define ONE_CYCLE 1
+#define SLOW_ONE_CYCLE 1
+#define TWO_CYCLES 2
+#endif
+
+
+#undef MEMMAP_BLOCK_SIZE
+#define MEMMAP_BLOCK_SIZE (0x1000)
+#undef MEMMAP_NUM_BLOCKS
+#define MEMMAP_NUM_BLOCKS (0x1000000 / MEMMAP_BLOCK_SIZE)
+
+struct SCPUState{
+ uint32 Flags; //0
+ bool8 BranchSkip; //4
+ bool8 NMIActive; //5
+ bool8 IRQActive; //6
+ bool8 WaitingForInterrupt; //7
+ struct SRegisters Regs; //8
+ //uint8 PB; //8 --> status
+ //uint8 DB; //9
+ //pair P; //10
+ //pair A; //12
+ //pair D; //14
+ //pair X; //16
+ //pair S; //18
+ //pair Y; //20
+ //uint16 PC; //22
+ uint8 *PC; //24
+ int32 Cycles; //28
+ uint8 *PCBase; //32
+ uint8 *PCAtOpcodeStart; //36
+ uint8 *WaitAddress; //40
+ uint32 WaitCounter; //44
+ volatile int32 NextEvent; //48
+ int32 V_Counter; //52
+ int32 MemSpeed; //56
+ int32 MemSpeedx2; //60
+ int32 FastROMSpeed; //64
+ uint32 AutoSaveTimer; //68
+ uint32 NMITriggerPoint; //72
+ uint32 NMICycleCount; //76
+ uint32 IRQCycleCount; //80
+
+ bool8 InDMA; //84
+ uint8 WhichEvent; //85
+ bool8 SRAMModified; //86
+ bool8 BRKTriggered; //87
+ uint32 _ARM_asm_reserved_1; //88 to stock current jmp table
+ bool8 TriedInterleavedMode2; //92
+ bool8 _ARM_asm_padding1[3]; //93
+
+ uint8* Memory_Map; //96
+ uint8* Memory_WriteMap; //100
+ uint32* Memory_MemorySpeed; //104
+ uint8* Memory_BlockIsRAM; //108
+ uint8* Memory_SRAM; //112
+ uint8* Memory_BWRAM; //116
+ uint32 Memory_SRAMMask; //120
+ bool32 APU_APUExecuting; //124
+ bool32 _ARM_asm_padding2; //128
+ uint32 _PALMSOS_R9; //132
+ uint32 _PALMSOS_R10; //136
+ volatile int32 APU_Cycles; //140 notaz
+ void *DSPGet;
+ void *DSPSet;
+ int32 rstatus;
+};
+
+
+#define HBLANK_START_EVENT 0
+#define HBLANK_END_EVENT 1
+#define HTIMER_BEFORE_EVENT 2
+#define HTIMER_AFTER_EVENT 3
+#define NO_EVENT 4
+
+struct SSettings{
+ // CPU options
+ bool8 APUEnabled;
+ bool8 Shutdown;
+
+ uint8 SoundSkipMethod;
+ long H_Max;
+ long HBlankStart;
+ long CyclesPercentage;
+ bool8 DisableIRQ;
+ bool8 Paused;
+ bool8 ForcedPause;
+ bool8 StopEmulation;
+
+ // Tracing options
+ bool8 TraceDMA;
+ bool8 TraceHDMA;
+ bool8 TraceVRAM;
+ bool8 TraceUnknownRegisters;
+ bool8 TraceDSP;
+
+ // Joystick options
+ bool8 SwapJoypads;
+ bool8 JoystickEnabled;
+
+ // ROM timing options (see also H_Max above)
+ bool8 ForcePAL;
+ bool8 ForceNTSC;
+ bool8 PAL;
+ uint32 FrameTimePAL;
+ uint32 FrameTimeNTSC;
+ uint32 FrameTime;
+ uint32 SkipFrames;
+
+ // ROM image options
+ bool8 ForceLoROM;
+ bool8 ForceHiROM;
+ bool8 ForceHeader;
+ bool8 ForceNoHeader;
+ bool8 ForceInterleaved;
+ bool8 ForceInterleaved2;
+ bool8 ForceNotInterleaved;
+
+ // Peripherial options
+ bool8 ForceSuperFX;
+ bool8 ForceNoSuperFX;
+ bool8 ForceDSP1;
+ bool8 ForceNoDSP1;
+ bool8 ForceSA1;
+ bool8 ForceNoSA1;
+ bool8 ForceC4;
+ bool8 ForceNoC4;
+ bool8 ForceSDD1;
+ bool8 ForceNoSDD1;
+ bool8 MultiPlayer5;
+ bool8 Mouse;
+ bool8 SuperScope;
+ bool8 SRTC;
+ uint32 ControllerOption;
+
+ bool8 ShutdownMaster;
+ bool8 MultiPlayer5Master;
+ bool8 SuperScopeMaster;
+ bool8 MouseMaster;
+ bool8 SuperFX;
+ bool8 DSP1Master;
+ bool8 SA1;
+ bool8 C4;
+ bool8 SDD1;
+
+ // Sound options
+ uint32 SoundPlaybackRate;
+ bool8 TraceSoundDSP;
+ bool8 Stereo;
+ bool8 ReverseStereo;
+ bool8 SixteenBitSound;
+ int SoundBufferSize;
+ int SoundMixInterval;
+ bool8 SoundEnvelopeHeightReading;
+ bool8 DisableSoundEcho;
+ bool8 DisableSampleCaching;
+ bool8 DisableMasterVolume;
+ bool8 SoundSync;
+ bool8 InterpolatedSound;
+ bool8 ThreadSound;
+ bool8 Mute;
+// bool8 NextAPUEnabled;
+ uint8 AltSampleDecode;
+ bool8 FixFrequency;
+
+ // Graphics options
+ bool8 SixteenBit;
+ bool8 Transparency;
+ bool8 SupportHiRes;
+ bool8 Mode7Interpolate;
+
+ // SNES graphics options
+ bool8 BGLayering;
+ bool8 DisableGraphicWindows;
+ bool8 ForceTransparency;
+ bool8 ForceNoTransparency;
+ bool8 DisableHDMA;
+ bool8 DisplayFrameRate;
+
+ // Others
+ bool8 NetPlay;
+ bool8 NetPlayServer;
+ char ServerName [128];
+ int Port;
+ bool8 GlideEnable;
+ bool8 OpenGLEnable;
+ int32 AutoSaveDelay; // Time in seconds before S-RAM auto-saved if modified.
+ bool8 ApplyCheats;
+ bool8 TurboMode;
+ uint32 TurboSkipFrames;
+ uint32 AutoMaxSkipFrames;
+ uint32 os9x_hack;
+
+// Fixes for individual games
+ uint32 StrikeGunnerOffsetHack;
+ bool8 ChuckRock;
+ bool8 StarfoxHack;
+ bool8 WinterGold;
+ bool8 Dezaemon;
+ bool8 WrestlemaniaArcade;
+ bool8 BS; // Japanese Satellite System games.
+ bool8 DaffyDuck;
+ uint8 APURAMInitialValue;
+ bool8 SDD1Pack;
+
+ bool8 asmspc700;
+ bool8 SpeedHacks;
+#ifdef __WIN32__
+ int SoundDriver;
+#endif
+};
+
+struct SSNESGameFixes
+{
+ uint8 NeedInit0x2137;
+ uint8 umiharakawaseFix;
+ uint8 alienVSpredetorFix;
+ uint8 APU_OutPorts_ReturnValueFix;
+ uint8 Old_Read0x4200;
+ uint8 _0x213E_ReturnValue;
+ uint8 TouhaidenControllerFix;
+ uint8 SoundEnvelopeHeightReading2;
+ uint8 SRAMInitialValue;
+ uint8 Uniracers;
+ uint8 Flintstones;
+ uint8 Mode7Hack;
+};
+
+START_EXTERN_C
+extern struct SSettings Settings;
+extern struct SCPUState CPU;
+extern struct SSNESGameFixes SNESGameFixes;
+extern char String [513];
+
+void S9xExit ();
+void S9xMessage (int type, int number, const char *message);
+void S9xLoadSDD1Data ();
+END_EXTERN_C
+
+enum {
+ PAUSE_NETPLAY_CONNECT = (1 << 0),
+ PAUSE_TOGGLE_FULL_SCREEN = (1 << 1),
+ PAUSE_EXIT = (1 << 2),
+ PAUSE_MENU = (1 << 3),
+ PAUSE_INACTIVE_WINDOW = (1 << 4),
+ PAUSE_WINDOW_ICONISED = (1 << 5),
+ PAUSE_RESTORE_GUI = (1 << 6),
+ PAUSE_FREEZE_FILE = (1 << 7)
+};
+void S9xSetPause (uint32 mask);
+void S9xClearPause (uint32 mask);
+
+#endif
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