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NDMA: fix IRQ in infinite repeat mode

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This commit is contained in:
Arisotura
2025-06-25 21:52:23 +02:00
parent fd279bedc5
commit 7b562f71b3
1 changed files with 16 additions and 2 deletions
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18
src/DSi_NDMA.cpp
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@ -269,11 +269,18 @@ void DSi_NDMA::Run9()
if ((StartMode & 0x1F) == 0x10) // CHECKME if ((StartMode & 0x1F) == 0x10) // CHECKME
{ {
// no repeat
Cnt &= ~(1<<31); Cnt &= ~(1<<31);
if (Cnt & (1<<30)) DSi.SetIRQ(0, IRQ_DSi_NDMA0 + Num); if (Cnt & (1<<30)) DSi.SetIRQ(0, IRQ_DSi_NDMA0 + Num);
} }
else if (!(Cnt & (1<<29))) else if (Cnt & (1<<29))
{ {
// repeat infinitely
if (Cnt & (1<<30)) DSi.SetIRQ(0, IRQ_DSi_NDMA0 + Num);
}
else
{
// repeat until total count is reached
if (TotalRemCount == 0) if (TotalRemCount == 0)
{ {
Cnt &= ~(1<<31); Cnt &= ~(1<<31);
@ -358,11 +365,18 @@ void DSi_NDMA::Run7()
if ((StartMode & 0x1F) == 0x10) // CHECKME if ((StartMode & 0x1F) == 0x10) // CHECKME
{ {
// no repeat
Cnt &= ~(1<<31); Cnt &= ~(1<<31);
if (Cnt & (1<<30)) DSi.SetIRQ(1, IRQ_DSi_NDMA0 + Num); if (Cnt & (1<<30)) DSi.SetIRQ(1, IRQ_DSi_NDMA0 + Num);
} }
else if (!(Cnt & (1<<29))) else if (Cnt & (1<<29))
{ {
// repeat infinitely
if (Cnt & (1<<30)) DSi.SetIRQ(1, IRQ_DSi_NDMA0 + Num);
}
else
{
// repeat until total count is reached
if (TotalRemCount == 0) if (TotalRemCount == 0)
{ {
Cnt &= ~(1<<31); Cnt &= ~(1<<31);