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#include "../copyright"
#ifndef _SNES9X_H_
#define _SNES9X_H_
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <libretro.h>
#include "port.h"
#include "65c816.h"
#define ROM_NAME_LEN 23
#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 REOPEN_STREAM(f,m) fdopen(f,m)
#define FIND_STREAM(f) ftell(f)
#define REVERT_STREAM(f,o,s) fseek(f,o,s)
#define CLOSE_STREAM(s) fclose(s)
/* 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 341
#define SPC700_TO_65C816_RATIO 2
#define AUTO_FRAMERATE 200
/* 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 (3579545u)
#define SNES_CLOCK_LEN (1.0 / SNES_CLOCK_SPEED)
#define SNES_CYCLES_PER_SCANLINE ((uint32_t) ((SNES_SCANLINE_TIME / SNES_CLOCK_LEN) * 6 + 0.5))
#define ONE_CYCLE 6u
#define SLOW_ONE_CYCLE 8u
#define TWO_CYCLES 12u
#define SNES_TR_MASK (1u << 4)
#define SNES_TL_MASK (1u << 5)
#define SNES_X_MASK (1u << 6)
#define SNES_A_MASK (1u << 7)
#define SNES_RIGHT_MASK (1u << 8)
#define SNES_LEFT_MASK (1u << 9)
#define SNES_DOWN_MASK (1u << 10)
#define SNES_UP_MASK (1u << 11)
#define SNES_START_MASK (1u << 12)
#define SNES_SELECT_MASK (1u << 13)
#define SNES_Y_MASK (1u << 14)
#define SNES_B_MASK (1u << 15)
enum
{
SNES_MULTIPLAYER5,
SNES_JOYPAD,
SNES_MOUSE,
SNES_SUPERSCOPE,
SNES_JUSTIFIER,
SNES_JUSTIFIER_2,
SNES_MAX_CONTROLLER_OPTIONS
};
#define DEBUG_MODE_FLAG (1u << 0)
#define TRACE_FLAG (1u << 1)
#define SINGLE_STEP_FLAG (1u << 2)
#define BREAK_FLAG (1u << 3)
#define SCAN_KEYS_FLAG (1u << 4)
#define SAVE_SNAPSHOT_FLAG (1u << 5)
#define DELAYED_NMI_FLAG (1u << 6)
#define NMI_FLAG (1u << 7)
#define PROCESS_SOUND_FLAG (1u << 8)
#define FRAME_ADVANCE_FLAG (1u << 9)
#define DELAYED_NMI_FLAG2 (1u << 10)
#define IRQ_PENDING_FLAG (1u << 11)
typedef struct
{
uint32_t Flags;
bool BranchSkip;
bool NMIActive;
uint8_t IRQActive;
bool WaitingForInterrupt;
bool InDMA;
uint8_t WhichEvent;
uint8_t* PC;
uint8_t* PCBase;
uint8_t* PCAtOpcodeStart;
uint8_t* WaitAddress;
uint32_t WaitCounter;
long Cycles; // For savestate compatibility can't change to int32_t
long NextEvent; // For savestate compatibility can't change to int32_t
long V_Counter; // For savestate compatibility can't change to int32_t
long MemSpeed; // For savestate compatibility can't change to int32_t
long MemSpeedx2; // For savestate compatibility can't change to int32_t
long FastROMSpeed; // For savestate compatibility can't change to int32_t
uint32_t AutoSaveTimer;
bool SRAMModified;
uint32_t NMITriggerPoint;
bool BRKTriggered;
bool TriedInterleavedMode2;
uint32_t NMICycleCount;
uint32_t IRQCycleCount;
} SCPUState;
#define HBLANK_START_EVENT 0u
#define HBLANK_END_EVENT 1u
#define HTIMER_BEFORE_EVENT 2u
#define HTIMER_AFTER_EVENT 3u
#define NO_EVENT 4u
typedef struct
{
/* CPU options */
bool APUEnabled;
bool Shutdown;
uint8_t SoundSkipMethod;
int32_t H_Max;
int32_t HBlankStart;
int32_t CyclesPercentage;
bool DisableIRQ;
bool Paused;
bool ForcedPause;
bool StopEmulation;
bool FrameAdvance;
/* Tracing options */
bool TraceDMA;
bool TraceHDMA;
bool TraceVRAM;
bool TraceUnknownRegisters;
bool TraceDSP;
/* Joystick options */
bool JoystickEnabled;
/* ROM timing options (see also H_Max above) */
bool ForcePAL;
bool ForceNTSC;
bool PAL;
uint32_t FrameTimePAL;
uint32_t FrameTimeNTSC;
uint32_t FrameTime;
uint32_t SkipFrames;
/* ROM image options */
bool ForceLoROM;
bool ForceHiROM;
bool ForceHeader;
bool ForceNoHeader;
bool ForceInterleaved;
bool ForceInterleaved2;
bool ForceNotInterleaved;
/* Peripherial options */
bool ForceSuperFX;
bool ForceNoSuperFX;
bool ForceDSP1;
bool ForceNoDSP1;
bool ForceSA1;
bool ForceNoSA1;
bool ForceC4;
bool ForceNoC4;
bool ForceSDD1;
bool ForceNoSDD1;
bool MultiPlayer5;
bool Mouse;
bool SuperScope;
bool SRTC;
uint32_t ControllerOption;
bool ShutdownMaster;
bool MultiPlayer5Master;
bool SuperScopeMaster;
bool MouseMaster;
bool SuperFX;
bool DSP1Master;
bool SA1;
bool C4;
bool SDD1;
bool SPC7110;
bool SPC7110RTC;
bool OBC1;
uint8_t DSP;
/* Sound options */
uint32_t SoundPlaybackRate;
#ifdef USE_BLARGG_APU
uint32_t SoundInputRate;
#endif
bool TraceSoundDSP;
bool EightBitConsoleSound; // due to caching, this needs S9xSetEightBitConsoleSound()
int32_t SoundBufferSize;
int32_t SoundMixInterval;
bool SoundEnvelopeHeightReading;
bool DisableSoundEcho;
bool DisableMasterVolume;
bool SoundSync;
bool InterpolatedSound;
bool ThreadSound;
bool Mute;
bool NextAPUEnabled;
/* Graphics options */
bool Transparency;
bool SupportHiRes;
bool Mode7Interpolate;
/* SNES graphics options */
bool BGLayering;
bool DisableGraphicWindows;
bool ForceTransparency;
bool ForceNoTransparency;
bool DisableHDMA;
bool DisplayFrameRate;
bool DisableRangeTimeOver; /* XXX: unused */
/* Others */
bool ApplyCheats;
/* Fixes for individual games */
bool StarfoxHack;
bool WinterGold;
bool BS; /* Japanese Satellite System games. */
uint8_t APURAMInitialValue;
bool SampleCatchup;
bool JustifierMaster;
bool Justifier;
bool SecondJustifier;
int8_t SETA;
bool TakeScreenshot;
int8_t StretchScreenshots;
uint16_t DisplayColor;
int32_t SoundDriver;
int32_t AIDOShmId;
bool NoPatch;
bool ForceInterleaveGD24;
} SSettings;
typedef struct
{
uint8_t APU_OutPorts_ReturnValueFix;
uint8_t SoundEnvelopeHeightReading2;
uint8_t SRAMInitialValue;
bool EchoOnlyOutput;
} SSNESGameFixes;
extern SSettings Settings;
extern SCPUState CPU;
extern SSNESGameFixes SNESGameFixes;
extern char String [513];
void S9xMessage(const char* message);
void S9xSetPause(uint32_t mask);
void S9xClearPause(uint32_t mask);
#endif
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