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DMA: Fix an unlikely case where LL DMA gets stuck on 

Fixes Frogger.
This commit is contained in:
Connor McLaughlin 2020-04-30 14:52:24 +10:00
parent dac114fa4e
commit 5cd78dcab5
1 changed files with 8 additions and 8 deletions
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16
src/core/dma.cpp
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@ -307,16 +307,16 @@ bool DMA::TransferChannel(Channel channel)
cs.base_address = current_address; cs.base_address = current_address;
m_system->StallCPU(used_ticks); m_system->StallCPU(used_ticks);
if (used_ticks >= m_max_slice_ticks)
{
// stall the transfer for a bit if we ran for too long
// Log_WarningPrintf("breaking dma chain at 0x%08X", current_address);
HaltTransfer(m_halt_ticks);
return false;
}
if ((current_address & UINT32_C(0x800000)) == 0) if ((current_address & UINT32_C(0x800000)) == 0)
{ {
if (used_ticks >= m_max_slice_ticks && cs.request)
{
// stall the transfer for a bit if we ran for too long
// Log_WarningPrintf("breaking dma chain at 0x%08X", current_address);
HaltTransfer(m_halt_ticks);
return false;
}
// linked list not yet complete // linked list not yet complete
return true; return true;
} }