mirror of
https://github.com/italicsjenga/agb.git
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186 lines
4.1 KiB
C
186 lines
4.1 KiB
C
/* Copyright (c) 2013-2016 Jeffrey Pfau
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GBA_H
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#define GBA_H
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#include <mgba-util/common.h>
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CXX_GUARD_START
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#include <mgba/core/log.h>
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#include <mgba/core/timing.h>
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#include <mgba/internal/gba/memory.h>
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#include <mgba/internal/gba/video.h>
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#include <mgba/internal/gba/audio.h>
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#include <mgba/internal/gba/sio.h>
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#include <mgba/internal/gba/timer.h>
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#define GBA_ARM7TDMI_FREQUENCY 0x1000000U
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enum GBAIRQ {
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IRQ_VBLANK = 0x0,
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IRQ_HBLANK = 0x1,
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IRQ_VCOUNTER = 0x2,
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IRQ_TIMER0 = 0x3,
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IRQ_TIMER1 = 0x4,
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IRQ_TIMER2 = 0x5,
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IRQ_TIMER3 = 0x6,
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IRQ_SIO = 0x7,
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IRQ_DMA0 = 0x8,
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IRQ_DMA1 = 0x9,
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IRQ_DMA2 = 0xA,
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IRQ_DMA3 = 0xB,
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IRQ_KEYPAD = 0xC,
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IRQ_GAMEPAK = 0xD
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};
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enum GBAIdleLoopOptimization {
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IDLE_LOOP_IGNORE = -1,
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IDLE_LOOP_REMOVE = 0,
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IDLE_LOOP_DETECT
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};
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enum {
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SP_BASE_SYSTEM = 0x03007F00,
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SP_BASE_IRQ = 0x03007FA0,
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SP_BASE_SUPERVISOR = 0x03007FE0
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};
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struct ARMCore;
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struct GBA;
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struct Patch;
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struct VFile;
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mLOG_DECLARE_CATEGORY(GBA);
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mLOG_DECLARE_CATEGORY(GBA_DEBUG);
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DECL_BITFIELD(GBADebugFlags, uint16_t);
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DECL_BITS(GBADebugFlags, Level, 0, 3);
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DECL_BIT(GBADebugFlags, Send, 8);
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struct GBA {
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struct mCPUComponent d;
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struct ARMCore* cpu;
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struct GBAMemory memory;
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struct GBAVideo video;
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struct GBAAudio audio;
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struct GBASIO sio;
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struct mCoreSync* sync;
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struct mTiming timing;
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struct ARMDebugger* debugger;
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uint32_t bus;
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int performingDMA;
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struct GBATimer timers[4];
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int springIRQ;
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struct mTimingEvent irqEvent;
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uint32_t biosChecksum;
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int* keySource;
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struct mRotationSource* rotationSource;
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struct GBALuminanceSource* luminanceSource;
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struct mRTCSource* rtcSource;
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struct mRumble* rumble;
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bool isPristine;
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size_t pristineRomSize;
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size_t yankedRomSize;
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uint32_t romCrc32;
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struct VFile* romVf;
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struct VFile* biosVf;
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struct mAVStream* stream;
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struct mKeyCallback* keyCallback;
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struct mCoreCallbacksList coreCallbacks;
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enum GBAIdleLoopOptimization idleOptimization;
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uint32_t idleLoop;
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uint32_t lastJump;
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bool haltPending;
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bool cpuBlocked;
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bool earlyExit;
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uint32_t dmaPC;
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uint32_t biosStall;
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int idleDetectionStep;
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int idleDetectionFailures;
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int32_t cachedRegisters[16];
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bool taintedRegisters[16];
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bool vbaBugCompat;
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bool hardCrash;
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bool allowOpposingDirections;
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bool debug;
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char debugString[0x100];
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GBADebugFlags debugFlags;
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};
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struct GBACartridge {
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uint32_t entry;
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uint8_t logo[156];
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char title[12];
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uint32_t id;
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uint16_t maker;
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uint8_t type;
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uint8_t unit;
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uint8_t device;
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uint8_t reserved[7];
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uint8_t version;
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uint8_t checksum;
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// And ROM data...
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};
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void GBACreate(struct GBA* gba);
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void GBADestroy(struct GBA* gba);
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void GBAReset(struct ARMCore* cpu);
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void GBASkipBIOS(struct GBA* gba);
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void GBARaiseIRQ(struct GBA* gba, enum GBAIRQ irq, uint32_t cyclesLate);
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void GBATestIRQ(struct GBA* gba, uint32_t cyclesLate);
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void GBAHalt(struct GBA* gba);
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void GBAStop(struct GBA* gba);
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void GBADebug(struct GBA* gba, uint16_t value);
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#ifdef USE_DEBUGGERS
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struct mDebugger;
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void GBAAttachDebugger(struct GBA* gba, struct mDebugger* debugger);
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void GBADetachDebugger(struct GBA* gba);
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#endif
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void GBASetBreakpoint(struct GBA* gba, struct mCPUComponent* component, uint32_t address, enum ExecutionMode mode,
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uint32_t* opcode);
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void GBAClearBreakpoint(struct GBA* gba, uint32_t address, enum ExecutionMode mode, uint32_t opcode);
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bool GBALoadROM(struct GBA* gba, struct VFile* vf);
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bool GBALoadSave(struct GBA* gba, struct VFile* sav);
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void GBAYankROM(struct GBA* gba);
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void GBAUnloadROM(struct GBA* gba);
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void GBALoadBIOS(struct GBA* gba, struct VFile* vf);
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void GBAApplyPatch(struct GBA* gba, struct Patch* patch);
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bool GBALoadMB(struct GBA* gba, struct VFile* vf);
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bool GBALoadNull(struct GBA* gba);
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void GBAGetGameCode(const struct GBA* gba, char* out);
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void GBAGetGameTitle(const struct GBA* gba, char* out);
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void GBATestKeypadIRQ(struct GBA* gba);
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void GBAFrameStarted(struct GBA* gba);
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void GBAFrameEnded(struct GBA* gba);
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CXX_GUARD_END
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#endif
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