38 lines
858 B
C++
38 lines
858 B
C++
#ifdef SUPERFX_CPP
|
|
|
|
//ROM / RAM access from the S-CPU
|
|
|
|
unsigned SuperFX::ROM::size() const {
|
|
return cartridge.rom.size();
|
|
}
|
|
|
|
uint8 SuperFX::ROM::read(unsigned addr) {
|
|
if(superfx.regs.sfr.g && superfx.regs.scmr.ron) {
|
|
static const uint8_t data[16] = {
|
|
0x00, 0x01, 0x00, 0x01, 0x04, 0x01, 0x00, 0x01,
|
|
0x00, 0x01, 0x08, 0x01, 0x00, 0x01, 0x0c, 0x01,
|
|
};
|
|
return data[addr & 15];
|
|
}
|
|
return cartridge.rom.read(addr);
|
|
}
|
|
|
|
void SuperFX::ROM::write(unsigned addr, uint8 data) {
|
|
cartridge.rom.write(addr, data);
|
|
}
|
|
|
|
unsigned SuperFX::RAM::size() const {
|
|
return cartridge.ram.size();
|
|
}
|
|
|
|
uint8 SuperFX::RAM::read(unsigned addr) {
|
|
if(superfx.regs.sfr.g && superfx.regs.scmr.ran) return cpu.regs.mdr;
|
|
return cartridge.ram.read(addr);
|
|
}
|
|
|
|
void SuperFX::RAM::write(unsigned addr, uint8 data) {
|
|
cartridge.ram.write(addr, data);
|
|
}
|
|
|
|
#endif
|