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refactor: reorganize everything

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Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
This commit is contained in:
Amneesh Singh
2023-10-04 01:41:38 +05:30
parent 36d71a4ee2
commit e0f7f32699
28 changed files with 297 additions and 338 deletions
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81
src/memory.cc
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@@ -34,64 +34,55 @@ Memory::Memory(std::array<uint8_t, BIOS_SIZE>&& bios,
glogger.info("Cartridge Title: {}", header.title);
};
#define MATCHES(area) address >= area##_START&& address <= area##_END
uint8_t
Memory::read(size_t address) const {
if (MATCHES(BIOS)) {
return bios[address];
} else if (MATCHES(BOARD_WRAM)) {
return board_wram[address - BOARD_WRAM_START];
} else if (MATCHES(CHIP_WRAM)) {
return chip_wram[address - CHIP_WRAM_START];
} else if (MATCHES(PALETTE_RAM)) {
return palette_ram[address - PALETTE_RAM_START];
} else if (MATCHES(VRAM)) {
return vram[address - VRAM_START];
} else if (MATCHES(OAM_OBJ_ATTR)) {
return oam_obj_attr[address - OAM_OBJ_ATTR_START];
} else if (MATCHES(ROM_0)) {
return rom[address - ROM_0_START];
} else if (MATCHES(ROM_1)) {
return rom[address - ROM_1_START];
} else if (MATCHES(ROM_2)) {
return rom[address - ROM_2_START];
} else {
glogger.error("Invalid memory region accessed");
return 0xFF;
}
#define MATCHES(AREA, area) \
if (address >= AREA##_START && address < AREA##_START + area.size()) \
return area[address - AREA##_START];
MATCHES(BIOS, bios)
MATCHES(BOARD_WRAM, board_wram)
MATCHES(CHIP_WRAM, chip_wram)
MATCHES(PALETTE_RAM, palette_ram)
MATCHES(VRAM, vram)
MATCHES(OAM_OBJ_ATTR, oam_obj_attr)
MATCHES(ROM_0, rom)
MATCHES(ROM_1, rom)
MATCHES(ROM_2, rom)
glogger.error("Invalid memory region accessed");
return 0xFF;
#undef MATCHES
}
void
Memory::write(size_t address, uint8_t byte) {
if (MATCHES(BIOS)) {
bios[address] = byte;
} else if (MATCHES(BOARD_WRAM)) {
board_wram[address - BOARD_WRAM_START] = byte;
} else if (MATCHES(CHIP_WRAM)) {
chip_wram[address - CHIP_WRAM_START] = byte;
} else if (MATCHES(PALETTE_RAM)) {
palette_ram[address - PALETTE_RAM_START] = byte;
} else if (MATCHES(VRAM)) {
vram[address - VRAM_START] = byte;
} else if (MATCHES(OAM_OBJ_ATTR)) {
oam_obj_attr[address - OAM_OBJ_ATTR_START] = byte;
} else if (MATCHES(ROM_0)) {
rom[address - ROM_0_START] = byte;
} else if (MATCHES(ROM_1)) {
rom[address - ROM_1_START] = byte;
} else if (MATCHES(ROM_2)) {
rom[address - ROM_2_START] = byte;
} else {
glogger.error("Invalid memory region accessed");
#define MATCHES(AREA, area) \
if (address >= AREA##_START && address < AREA##_START + area.size()) { \
area[address - AREA##_START] = byte; \
return; \
}
MATCHES(BIOS, bios)
MATCHES(BOARD_WRAM, board_wram)
MATCHES(CHIP_WRAM, chip_wram)
MATCHES(PALETTE_RAM, palette_ram)
MATCHES(VRAM, vram)
MATCHES(OAM_OBJ_ATTR, oam_obj_attr)
MATCHES(ROM_0, rom)
MATCHES(ROM_1, rom)
MATCHES(ROM_2, rom)
glogger.error("Invalid memory region accessed");
#undef MATCHES
}
#undef MATCHES
void
Memory::parse_header() {
if (rom.size() < header.HEADER_SIZE) {
throw std::out_of_range(
"ROM is not large enough to even have a header");