bsnes/sfc/coprocessor/sa1/bus/bus.cpp

31 lines
713 B
C++

//ROM / RAM access from the S-CPU
auto SA1::CPUIRAM::size() const -> uint {
return sa1.iram.size();
}
auto SA1::CPUIRAM::read(uint addr) -> uint8 {
cpu.synchronizeCoprocessors();
return sa1.iram.read(addr & 0x07ff);
}
auto SA1::CPUIRAM::write(uint addr, uint8 data) -> void {
cpu.synchronizeCoprocessors();
sa1.iram.write(addr & 0x07ff, data);
}
auto SA1::CPUBWRAM::size() const -> uint {
return sa1.bwram.size();
}
auto SA1::CPUBWRAM::read(uint addr) -> uint8 {
cpu.synchronizeCoprocessors();
if(dma) return sa1.dma_cc1_read(addr);
return sa1.bwram.read(addr);
}
auto SA1::CPUBWRAM::write(uint addr, uint8 data) -> void {
cpu.synchronizeCoprocessors();
sa1.bwram.write(addr, data);
}