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PPU: Enabling NMI during vblank should trigger an NMI

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This commit is contained in:
Sour 2019-04-07 20:18:02 -04:00
parent 7619ff83c9
commit d319f37963
1 changed files with 4 additions and 0 deletions
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4
Core/InternalRegisters.cpp
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@ -133,6 +133,10 @@ void InternalRegisters::Write(uint16_t addr, uint8_t value)
_console->GetCpu()->SetIrqSource(IrqSource::Ppu);
}
if((value & 0x80) && !_enableNmi && _nmiFlag) {
_console->GetCpu()->SetNmiFlag();
}
_enableNmi = (value & 0x80) != 0;
_enableVerticalIrq = (value & 0x20) != 0;
_enableHorizontalIrq = (value & 0x10) != 0;