bsnes/higan/processor/v30mz/instructions-flag.cpp

29 lines
419 B
C++

//9e sahf
auto V30MZ::opStoreFlagsAcc() {
wait(3);
r.f = (r.f & 0xff00) | r.ah;
}
//9f lahf
auto V30MZ::opLoadAccFlags() {
wait(1);
r.ah = (r.f & 0x00ff);
}
//f5 cmc
auto V30MZ::opComplementCarry() {
wait(3);
r.f.c = !r.f.c;
}
auto V30MZ::opClearFlag(bool& flag) {
wait(3);
flag = false;
}
auto V30MZ::opSetFlag(bool& flag) {
wait(3);
flag = true;
if(&flag == &r.f.i) state.poll = false;
}