bsnes/sfc/cheat/cheat.cpp

34 lines
705 B
C++

#include <sfc/sfc.hpp>
#define CHEAT_CPP
namespace SuperFamicom {
Cheat cheat;
auto Cheat::reset() -> void {
codes.reset();
}
auto Cheat::append(unsigned addr, unsigned data) -> void {
codes.append({addr, Unused, data});
}
auto Cheat::append(unsigned addr, unsigned comp, unsigned data) -> void {
codes.append({addr, comp, data});
}
auto Cheat::find(unsigned addr, unsigned comp) -> maybe<unsigned> {
//WRAM mirroring: $00-3f,80-bf:0000-1fff -> $7e:0000-1fff
if((addr & 0x40e000) == 0x000000) addr = 0x7e0000 | (addr & 0x1fff);
for(auto& code : codes) {
if(code.addr == addr && (code.comp == Unused || code.comp == comp)) {
return code.data;
}
}
return nothing;
}
}