agb/mgba-test-runner/c/vendor/mgba/internal/gba/memory.h
2021-05-23 06:40:57 +01:00

182 lines
4.8 KiB
C

/* Copyright (c) 2013-2016 Jeffrey Pfau
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GBA_MEMORY_H
#define GBA_MEMORY_H
#include <mgba-util/common.h>
CXX_GUARD_START
#include <mgba/core/timing.h>
#include <mgba/internal/arm/arm.h>
#include <mgba/internal/gba/dma.h>
#include <mgba/internal/gba/hardware.h>
#include <mgba/internal/gba/savedata.h>
#include <mgba/internal/gba/vfame.h>
#include <mgba/internal/gba/matrix.h>
enum GBAMemoryRegion {
REGION_BIOS = 0x0,
REGION_WORKING_RAM = 0x2,
REGION_WORKING_IRAM = 0x3,
REGION_IO = 0x4,
REGION_PALETTE_RAM = 0x5,
REGION_VRAM = 0x6,
REGION_OAM = 0x7,
REGION_CART0 = 0x8,
REGION_CART0_EX = 0x9,
REGION_CART1 = 0xA,
REGION_CART1_EX = 0xB,
REGION_CART2 = 0xC,
REGION_CART2_EX = 0xD,
REGION_CART_SRAM = 0xE,
REGION_CART_SRAM_MIRROR = 0xF
};
enum GBAMemoryBase {
BASE_BIOS = 0x00000000,
BASE_WORKING_RAM = 0x02000000,
BASE_WORKING_IRAM = 0x03000000,
BASE_IO = 0x04000000,
BASE_PALETTE_RAM = 0x05000000,
BASE_VRAM = 0x06000000,
BASE_OAM = 0x07000000,
BASE_CART0 = 0x08000000,
BASE_CART0_EX = 0x09000000,
BASE_CART1 = 0x0A000000,
BASE_CART1_EX = 0x0B000000,
BASE_CART2 = 0x0C000000,
BASE_CART2_EX = 0x0D000000,
BASE_CART_SRAM = 0x0E000000,
BASE_CART_SRAM_MIRROR = 0x0F000000
};
enum {
SIZE_BIOS = 0x00004000,
SIZE_WORKING_RAM = 0x00040000,
SIZE_WORKING_IRAM = 0x00008000,
SIZE_IO = 0x00000400,
SIZE_PALETTE_RAM = 0x00000400,
SIZE_VRAM = 0x00018000,
SIZE_OAM = 0x00000400,
SIZE_CART0 = 0x02000000,
SIZE_CART1 = 0x02000000,
SIZE_CART2 = 0x02000000,
SIZE_CART_SRAM = 0x00008000,
SIZE_CART_FLASH512 = 0x00010000,
SIZE_CART_FLASH1M = 0x00020000,
SIZE_CART_EEPROM = 0x00002000,
SIZE_CART_EEPROM512 = 0x00000200,
SIZE_AGB_PRINT = 0x10000
};
enum {
OFFSET_MASK = 0x00FFFFFF,
BASE_OFFSET = 24
};
enum {
AGB_PRINT_BASE = 0x00FD0000,
AGB_PRINT_TOP = 0x00FE0000,
AGB_PRINT_PROTECT = 0x00FE2FFE,
AGB_PRINT_STRUCT = 0x00FE20F8,
AGB_PRINT_FLUSH_ADDR = 0x00FE209C,
};
mLOG_DECLARE_CATEGORY(GBA_MEM);
struct GBAPrintContext {
uint16_t request;
uint16_t bank;
uint16_t get;
uint16_t put;
};
struct GBAMemory {
uint32_t* bios;
uint32_t* wram;
uint32_t* iwram;
uint32_t* rom;
uint16_t io[512];
struct GBACartridgeHardware hw;
struct GBASavedata savedata;
struct GBAVFameCart vfame;
struct GBAMatrix matrix;
size_t romSize;
uint32_t romMask;
uint16_t romID;
int fullBios;
char waitstatesSeq32[256];
char waitstatesSeq16[256];
char waitstatesNonseq32[256];
char waitstatesNonseq16[256];
int activeRegion;
bool prefetch;
uint32_t lastPrefetchedPc;
uint32_t biosPrefetch;
struct GBADMA dma[4];
struct mTimingEvent dmaEvent;
int activeDMA;
uint32_t dmaTransferRegister;
uint32_t agbPrintBase;
uint16_t agbPrintProtect;
struct GBAPrintContext agbPrintCtx;
uint16_t* agbPrintBuffer;
uint16_t agbPrintProtectBackup;
struct GBAPrintContext agbPrintCtxBackup;
uint32_t agbPrintFuncBackup;
uint16_t* agbPrintBufferBackup;
bool mirroring;
};
struct GBA;
void GBAMemoryInit(struct GBA* gba);
void GBAMemoryDeinit(struct GBA* gba);
void GBAMemoryReset(struct GBA* gba);
uint32_t GBALoad32(struct ARMCore* cpu, uint32_t address, int* cycleCounter);
uint32_t GBALoad16(struct ARMCore* cpu, uint32_t address, int* cycleCounter);
uint32_t GBALoad8(struct ARMCore* cpu, uint32_t address, int* cycleCounter);
uint32_t GBALoadBad(struct ARMCore* cpu);
void GBAStore32(struct ARMCore* cpu, uint32_t address, int32_t value, int* cycleCounter);
void GBAStore16(struct ARMCore* cpu, uint32_t address, int16_t value, int* cycleCounter);
void GBAStore8(struct ARMCore* cpu, uint32_t address, int8_t value, int* cycleCounter);
uint32_t GBAView32(struct ARMCore* cpu, uint32_t address);
uint16_t GBAView16(struct ARMCore* cpu, uint32_t address);
uint8_t GBAView8(struct ARMCore* cpu, uint32_t address);
void GBAPatch32(struct ARMCore* cpu, uint32_t address, int32_t value, int32_t* old);
void GBAPatch16(struct ARMCore* cpu, uint32_t address, int16_t value, int16_t* old);
void GBAPatch8(struct ARMCore* cpu, uint32_t address, int8_t value, int8_t* old);
uint32_t GBALoadMultiple(struct ARMCore*, uint32_t baseAddress, int mask, enum LSMDirection direction,
int* cycleCounter);
uint32_t GBAStoreMultiple(struct ARMCore*, uint32_t baseAddress, int mask, enum LSMDirection direction,
int* cycleCounter);
void GBAAdjustWaitstates(struct GBA* gba, uint16_t parameters);
struct GBASerializedState;
void GBAMemorySerialize(const struct GBAMemory* memory, struct GBASerializedState* state);
void GBAMemoryDeserialize(struct GBAMemory* memory, const struct GBASerializedState* state);
void GBAPrintFlush(struct GBA* gba);
CXX_GUARD_END
#endif