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PPU: Fixed vblank flag timing for 239-line mode

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This commit is contained in:
Sour 2019-03-09 14:37:50 -05:00
parent a018f1129a
commit bcb74aae40
1 changed files with 1 additions and 1 deletions
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2
Core/InternalRegisters.cpp
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@ -75,7 +75,7 @@ uint8_t InternalRegisters::Read(uint16_t addr)
case 0x4212: { case 0x4212: {
PpuState state = _console->GetPpu()->GetState(); PpuState state = _console->GetPpu()->GetState();
uint32_t vblankStart = state.OverscanMode ? 241 : 225; uint32_t vblankStart = state.OverscanMode ? 240 : 225;
//TODO TIMING (set/clear timing) //TODO TIMING (set/clear timing)
return ( return (
(state.Scanline >= vblankStart ? 0x80 : 0) | (state.Scanline >= vblankStart ? 0x80 : 0) |