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NESHawk: fix MMC5 IRQ timing, fixes #2036

This commit is contained in:
alyosha-tas 2021-07-03 20:43:53 -04:00
parent 9488e19d38
commit 2d8ea8a989
1 changed files with 3 additions and 3 deletions
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6
src/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/ExROM.cs
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@ -669,10 +669,10 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
public override void ClockPpu()
{
if (NES.ppu.ppur.status.cycle != 336)
if (NES.ppu.ppur.status.cycle != 3)
return;
int sl = NES.ppu.ppur.status.sl + 1;
int sl = NES.ppu.ppur.status.sl;
if (!NES.ppu.PPUON || sl >= 241)
{
@ -695,7 +695,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
else
{
irq_counter++;
if (irq_counter == irq_target)
if (irq_counter == (irq_target + 1))
{
irq_pending = true;
SyncIRQ();