290 lines
6.0 KiB
C++
290 lines
6.0 KiB
C++
/*
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Copyright 2016-2021 Arisotura
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef NDS_H
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#define NDS_H
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#include "Savestate.h"
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#include "types.h"
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// when touching the main loop/timing code, pls test a lot of shit
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// with this enabled, to make sure it doesn't desync
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//#define DEBUG_CHECK_DESYNC
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namespace NDS
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{
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enum
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{
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Event_LCD = 0,
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Event_SPU,
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Event_Wifi,
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Event_DisplayFIFO,
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Event_ROMTransfer,
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Event_ROMSPITransfer,
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Event_SPITransfer,
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Event_Div,
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Event_Sqrt,
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// DSi
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Event_DSi_SDMMCTransfer,
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Event_DSi_SDIOTransfer,
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Event_DSi_NWifi,
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Event_DSi_CamIRQ,
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Event_DSi_CamTransfer,
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Event_DSi_RAMSizeChange,
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Event_DSi_DSP,
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Event_MAX
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};
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struct SchedEvent
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{
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void (*Func)(u32 param);
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u64 Timestamp;
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u32 Param;
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};
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enum
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{
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IRQ_VBlank = 0,
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IRQ_HBlank,
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IRQ_VCount,
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IRQ_Timer0,
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IRQ_Timer1,
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IRQ_Timer2,
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IRQ_Timer3,
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IRQ_RTC,
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IRQ_DMA0,
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IRQ_DMA1,
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IRQ_DMA2,
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IRQ_DMA3,
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IRQ_Keypad,
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IRQ_GBASlot,
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IRQ_Unused14,
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IRQ_Unused15,
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IRQ_IPCSync,
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IRQ_IPCSendDone,
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IRQ_IPCRecv,
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IRQ_CartXferDone,
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IRQ_CartIREQMC, // IRQ triggered by game cart (example: Pokémon Typing Adventure, BT controller)
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IRQ_GXFIFO,
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IRQ_LidOpen,
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IRQ_SPI,
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IRQ_Wifi,
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// DSi IRQs
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IRQ_DSi_DSP = 24,
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IRQ_DSi_Camera,
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IRQ_DSi_Unk26,
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IRQ_DSi_Unk27,
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IRQ_DSi_NDMA0,
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IRQ_DSi_NDMA1,
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IRQ_DSi_NDMA2,
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IRQ_DSi_NDMA3,
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};
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enum
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{
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// DSi ARM7-side IE2/IF2
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IRQ2_DSi_GPIO18_0 = 0,
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IRQ2_DSi_GPIO18_1,
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IRQ2_DSi_GPIO18_2,
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IRQ2_DSi_Unused3,
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IRQ2_DSi_GPIO33_0,
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IRQ2_DSi_Headphone,
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IRQ2_DSi_PowerButton,
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IRQ2_DSi_GPIO33_3, // "sound enable input"
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IRQ2_DSi_SDMMC,
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IRQ2_DSi_SD_Data1,
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IRQ2_DSi_SDIO,
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IRQ2_DSi_SDIO_Data1,
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IRQ2_DSi_AES,
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IRQ2_DSi_I2C,
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IRQ2_DSi_MicExt
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};
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struct Timer
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{
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u16 Reload;
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u16 Cnt;
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u32 Counter;
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u32 CycleShift;
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};
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struct MemRegion
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{
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u8* Mem;
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u32 Mask;
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};
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extern int ConsoleType;
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extern int CurCPU;
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extern u8 ARM9MemTimings[0x40000][4];
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extern u8 ARM7MemTimings[0x20000][4];
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extern u32 NumFrames;
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extern u32 NumLagFrames;
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extern bool LagFrameFlag;
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extern u64 ARM9Timestamp, ARM9Target;
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extern u64 ARM7Timestamp, ARM7Target;
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extern u32 ARM9ClockShift;
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extern u32 IME[2];
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extern u32 IE[2];
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extern u32 IF[2];
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extern u32 IE2;
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extern u32 IF2;
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extern Timer Timers[8];
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extern u32 CPUStop;
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extern u16 PowerControl9;
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extern u16 ExMemCnt[2];
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extern u8 ROMSeed0[2*8];
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extern u8 ROMSeed1[2*8];
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extern u8 ARM9BIOS[0x1000];
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extern u8 ARM7BIOS[0x4000];
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extern u16 ARM7BIOSProt;
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extern u8* MainRAM;
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extern u32 MainRAMMask;
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const u32 MainRAMMaxSize = 0x1000000;
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const u32 SharedWRAMSize = 0x8000;
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extern u8* SharedWRAM;
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extern MemRegion SWRAM_ARM9;
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extern MemRegion SWRAM_ARM7;
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extern u32 KeyInput;
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const u32 ARM7WRAMSize = 0x10000;
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extern u8* ARM7WRAM;
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bool Init();
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void DeInit();
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void Reset();
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void Stop();
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bool DoSavestate(Savestate* file);
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void SetARM9RegionTimings(u32 addrstart, u32 addrend, int buswidth, int nonseq, int seq);
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void SetARM7RegionTimings(u32 addrstart, u32 addrend, int buswidth, int nonseq, int seq);
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// 0=DS 1=DSi
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void SetConsoleType(int type);
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bool LoadROM(const char* path, const char* sram, bool direct);
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bool LoadROM(const u8* romdata, u32 filelength, const char *sram, bool direct);
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bool LoadGBAROM(const char* path, const char* sram);
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bool LoadGBAROM(const u8* romdata, u32 filelength, const char *filename, const char *sram);
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void LoadBIOS();
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void SetupDirectBoot();
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void RelocateSave(const char* path, bool write);
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u32 RunFrame();
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void TouchScreen(u16 x, u16 y);
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void ReleaseScreen();
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void SetKeyMask(u32 mask);
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bool IsLidClosed();
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void SetLidClosed(bool closed);
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void MicInputFrame(s16* data, int samples);
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int ImportSRAM(u8* data, u32 length);
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void ScheduleEvent(u32 id, bool periodic, s32 delay, void (*func)(u32), u32 param);
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void CancelEvent(u32 id);
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void debug(u32 p);
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void Halt();
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void MapSharedWRAM(u8 val);
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void UpdateIRQ(u32 cpu);
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void SetIRQ(u32 cpu, u32 irq);
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void ClearIRQ(u32 cpu, u32 irq);
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void SetIRQ2(u32 irq);
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void ClearIRQ2(u32 irq);
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bool HaltInterrupted(u32 cpu);
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void StopCPU(u32 cpu, u32 mask);
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void ResumeCPU(u32 cpu, u32 mask);
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void GXFIFOStall();
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void GXFIFOUnstall();
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u32 GetPC(u32 cpu);
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u64 GetSysClockCycles(int num);
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void NocashPrint(u32 cpu, u32 addr);
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void MonitorARM9Jump(u32 addr);
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bool DMAsInMode(u32 cpu, u32 mode);
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bool DMAsRunning(u32 cpu);
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void CheckDMAs(u32 cpu, u32 mode);
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void StopDMAs(u32 cpu, u32 mode);
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void RunTimers(u32 cpu);
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u8 ARM9Read8(u32 addr);
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u16 ARM9Read16(u32 addr);
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u32 ARM9Read32(u32 addr);
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void ARM9Write8(u32 addr, u8 val);
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void ARM9Write16(u32 addr, u16 val);
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void ARM9Write32(u32 addr, u32 val);
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bool ARM9GetMemRegion(u32 addr, bool write, MemRegion* region);
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u8 ARM7Read8(u32 addr);
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u16 ARM7Read16(u32 addr);
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u32 ARM7Read32(u32 addr);
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void ARM7Write8(u32 addr, u8 val);
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void ARM7Write16(u32 addr, u16 val);
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void ARM7Write32(u32 addr, u32 val);
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bool ARM7GetMemRegion(u32 addr, bool write, MemRegion* region);
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u8 ARM9IORead8(u32 addr);
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u16 ARM9IORead16(u32 addr);
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u32 ARM9IORead32(u32 addr);
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void ARM9IOWrite8(u32 addr, u8 val);
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void ARM9IOWrite16(u32 addr, u16 val);
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void ARM9IOWrite32(u32 addr, u32 val);
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u8 ARM7IORead8(u32 addr);
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u16 ARM7IORead16(u32 addr);
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u32 ARM7IORead32(u32 addr);
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void ARM7IOWrite8(u32 addr, u8 val);
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void ARM7IOWrite16(u32 addr, u16 val);
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void ARM7IOWrite32(u32 addr, u32 val);
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}
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#endif // NDS_H
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