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/*
Copyright 2016-2020 Arisotura
This file is part of melonDS.
melonDS is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with melonDS. If not, see http://www.gnu.org/licenses/.
*/
#ifndef NDS_H
#define NDS_H
#include "Savestate.h"
#include "types.h"
// when touching the main loop/timing code, pls test a lot of shit
// with this enabled, to make sure it doesn't desync
//#define DEBUG_CHECK_DESYNC
namespace NDS
{
enum
{
Event_LCD = 0,
Event_SPU,
Event_Wifi,
Event_DisplayFIFO,
Event_ROMTransfer,
Event_ROMSPITransfer,
Event_SPITransfer,
Event_Div,
Event_Sqrt,
Event_MAX
};
typedef struct
{
void (*Func)(u32 param);
u64 Timestamp;
u32 Param;
} SchedEvent;
enum
{
IRQ_VBlank = 0,
IRQ_HBlank,
IRQ_VCount,
IRQ_Timer0,
IRQ_Timer1,
IRQ_Timer2,
IRQ_Timer3,
IRQ_RTC,
IRQ_DMA0,
IRQ_DMA1,
IRQ_DMA2,
IRQ_DMA3,
IRQ_Keypad,
IRQ_GBASlot,
IRQ_Unused14,
IRQ_Unused15,
IRQ_IPCSync,
IRQ_IPCSendDone,
IRQ_IPCRecv,
IRQ_CartSendDone,
IRQ_CartIREQMC,
IRQ_GXFIFO,
IRQ_LidOpen,
IRQ_SPI,
IRQ_Wifi
};
typedef struct
{
u16 Reload;
u16 Cnt;
u32 Counter;
u32 CycleShift;
} Timer;
typedef struct
{
u8* Mem;
u32 Mask;
} MemRegion;
extern u8 ARM9MemTimings[0x40000][4];
extern u8 ARM7MemTimings[0x20000][4];
extern u64 ARM9Timestamp, ARM9Target;
extern u64 ARM7Timestamp, ARM7Target;
extern u32 ARM9ClockShift;
// hax
extern u32 IME[2];
extern u32 IE[2];
extern u32 IF[2];
extern Timer Timers[8];
extern u16 PowerControl9;
extern u16 ExMemCnt[2];
extern u8 ROMSeed0[2*8];
extern u8 ROMSeed1[2*8];
extern u8 ARM9BIOS[0x1000];
extern u8 ARM7BIOS[0x4000];
#define MAIN_RAM_SIZE 0x400000
extern u8 MainRAM[MAIN_RAM_SIZE];
bool Init();
void DeInit();
void Reset();
void Stop();
bool DoSavestate(Savestate* file);
void SetARM9RegionTimings(u32 addrstart, u32 addrend, int buswidth, int nonseq, int seq);
void SetARM7RegionTimings(u32 addrstart, u32 addrend, int buswidth, int nonseq, int seq);
bool LoadROM(const char* path, const char* sram, bool direct);
bool LoadGBAROM(const char* path, const char* sram);
void LoadBIOS();
void SetupDirectBoot();
void RelocateSave(const char* path, bool write);
u32 RunFrame();
void PressKey(u32 key);
void ReleaseKey(u32 key);
void TouchScreen(u16 x, u16 y);
void ReleaseScreen();
void SetKeyMask(u32 mask);
void SetLidClosed(bool closed);
void MicInputFrame(s16* data, int samples);
void ScheduleEvent(u32 id, bool periodic, s32 delay, void (*func)(u32), u32 param);
void CancelEvent(u32 id);
void debug(u32 p);
void Halt();
void MapSharedWRAM(u8 val);
void SetIRQ(u32 cpu, u32 irq);
void ClearIRQ(u32 cpu, u32 irq);
bool HaltInterrupted(u32 cpu);
void StopCPU(u32 cpu, u32 mask);
void ResumeCPU(u32 cpu, u32 mask);
void GXFIFOStall();
void GXFIFOUnstall();
u32 GetPC(u32 cpu);
u64 GetSysClockCycles(int num);
void NocashPrint(u32 cpu, u32 addr);
bool DMAsInMode(u32 cpu, u32 mode);
bool DMAsRunning(u32 cpu);
void CheckDMAs(u32 cpu, u32 mode);
void StopDMAs(u32 cpu, u32 mode);
void RunTimers(u32 cpu);
u8 ARM9Read8(u32 addr);
u16 ARM9Read16(u32 addr);
u32 ARM9Read32(u32 addr);
void ARM9Write8(u32 addr, u8 val);
void ARM9Write16(u32 addr, u16 val);
void ARM9Write32(u32 addr, u32 val);
bool ARM9GetMemRegion(u32 addr, bool write, MemRegion* region);
u8 ARM7Read8(u32 addr);
u16 ARM7Read16(u32 addr);
u32 ARM7Read32(u32 addr);
void ARM7Write8(u32 addr, u8 val);
void ARM7Write16(u32 addr, u16 val);
void ARM7Write32(u32 addr, u32 val);
bool ARM7GetMemRegion(u32 addr, bool write, MemRegion* region);
u8 ARM9IORead8(u32 addr);
u16 ARM9IORead16(u32 addr);
u32 ARM9IORead32(u32 addr);
void ARM9IOWrite8(u32 addr, u8 val);
void ARM9IOWrite16(u32 addr, u16 val);
void ARM9IOWrite32(u32 addr, u32 val);
u8 ARM7IORead8(u32 addr);
u16 ARM7IORead16(u32 addr);
u32 ARM7IORead32(u32 addr);
void ARM7IOWrite8(u32 addr, u8 val);
void ARM7IOWrite16(u32 addr, u16 val);
void ARM7IOWrite32(u32 addr, u32 val);
}
#endif // NDS_H
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