mirror of https://github.com/bsnes-emu/bsnes.git
24 lines
633 B
C++
24 lines
633 B
C++
auto Cartridge::MROM::read(uint mode, uint32 addr) -> uint32 {
|
|
if(mode & Word) {
|
|
uint32 word = 0;
|
|
word |= read(mode & ~Word | Half, (addr & ~3) + 0) << 0;
|
|
word |= read(mode & ~Word | Half, (addr & ~3) + 2) << 16;
|
|
return word;
|
|
}
|
|
|
|
addr &= 0x01ff'ffff;
|
|
if(addr >= size) return (uint16)(addr >> 1);
|
|
|
|
if(mode & Half) addr &= ~1;
|
|
auto p = data + addr;
|
|
if(mode & Half) return p[0] << 0 | p[1] << 8;
|
|
if(mode & Byte) return p[0] << 0;
|
|
return 0; //should never occur
|
|
}
|
|
|
|
auto Cartridge::MROM::write(uint mode, uint32 addr, uint32 word) -> void {
|
|
}
|
|
|
|
auto Cartridge::MROM::serialize(serializer& s) -> void {
|
|
}
|