bsnes/higan/fc/cartridge/board/nes-hkrom.cpp

47 lines
1.1 KiB
C++

struct NES_HKROM : Board {
NES_HKROM(Markup::Node& document) : Board(document), mmc6(*this) {
}
auto main() -> void {
mmc6.main();
}
auto prg_read(uint addr) -> uint8 {
if((addr & 0xf000) == 0x7000) return mmc6.ram_read(addr);
if(addr & 0x8000) return prgrom.read(mmc6.prg_addr(addr));
return cpu.mdr();
}
auto prg_write(uint addr, uint8 data) -> void {
if((addr & 0xf000) == 0x7000) return mmc6.ram_write(addr, data);
if(addr & 0x8000) return mmc6.reg_write(addr, data);
}
auto chr_read(uint addr) -> uint8 {
mmc6.irq_test(addr);
if(addr & 0x2000) return ppu.ciram_read(mmc6.ciram_addr(addr));
return Board::chr_read(mmc6.chr_addr(addr));
}
auto chr_write(uint addr, uint8 data) -> void {
mmc6.irq_test(addr);
if(addr & 0x2000) return ppu.ciram_write(mmc6.ciram_addr(addr), data);
return Board::chr_write(mmc6.chr_addr(addr), data);
}
auto power() -> void {
mmc6.power();
}
auto reset() -> void {
mmc6.reset();
}
auto serialize(serializer& s) -> void {
Board::serialize(s);
mmc6.serialize(s);
}
MMC6 mmc6;
};