Method FixupAF

FEXCore/Source/Interface/Core/OpcodeDispatcher/Flags.cpp:194–207

}

void OpDispatchBuilder::FixupAF() {
  // The caller has set a desired value of AF in AF[4], regardless of the value
  // of PF. We need to fixup AF[4] so that we get the right value when we XOR in
  // PF[4] later. The easiest solution is to XOR by PF[4], since:
  //
  //  (AF[4] ^ PF[4]) ^ PF[4] = AF[4]

  auto PFRaw = GetRFLAG(FEXCore::X86State::RFLAG_PF_RAW_LOC);
  auto AFRaw = GetRFLAG(FEXCore::X86State::RFLAG_AF_RAW_LOC);

  // Again 64-bit as masking is more expensive.
  Ref XorRes = _Xor(OpSize::i64Bit, AFRaw, PFRaw);
  SetRFLAG<FEXCore::X86State::RFLAG_AF_RAW_LOC>(XorRes);
}

void OpDispatchBuilder::SetAFAndFixup(Ref AF) {
  // We have a value of AF, we shift into AF[4].  We need to fixup AF[4] so that