piwalker/melonDS
1
0
Fork 0
mirror of https://github.com/melonDS-emu/melonDS.git synced 2025-07-21 21:31:00 -06:00
Code Issues Packages Projects Releases Wiki Activity

* fixes to GXFIFO IRQ. refine IRQ support a bit.

Browse Source 
* fix potential bug when multiple DMAs are running.
This commit is contained in:
StapleButter
2017-03-03 00:48:26 +01:00
parent e0fa57fbf2
commit 2a33a5c480
8 changed files with 63 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
DMA.cpp
View File

@ -191,14 +191,14 @@ void DMA::Start()
NDSCart::DMA(CurDstAddr);
Cnt &= ~0x80000000;
if (Cnt & 0x40000000)
NDS::TriggerIRQ(CPU, NDS::IRQ_DMA0 + Num);
NDS::SetIRQ(CPU, NDS::IRQ_DMA0 + Num);
return;
}
// TODO eventually: not stop if we're running code in ITCM
Running = true;
NDS::StopCPU(CPU, true);
NDS::StopCPU(CPU, 1<<Num);
}
s32 DMA::Run(s32 cycles)
@ -247,9 +247,9 @@ s32 DMA::Run(s32 cycles)
if (IterCount == 0)
{
Running = false;
NDS::StopCPU(CPU, false);
NDS::ResumeCPU(CPU, 1<<Num);
if (StartMode & 0x07)
if (StartMode == 0x07)
GPU3D::CheckFIFODMA();
}
@ -260,10 +260,10 @@ s32 DMA::Run(s32 cycles)
Cnt &= ~0x80000000;
if (Cnt & 0x40000000)
NDS::TriggerIRQ(CPU, NDS::IRQ_DMA0 + Num);
NDS::SetIRQ(CPU, NDS::IRQ_DMA0 + Num);
Running = false;
NDS::StopCPU(CPU, false);
NDS::ResumeCPU(CPU, 1<<Num);
return cycles - 2;
}