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* HBlank flag and IRQ.

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* VBlank and HBlank DMA.
This commit is contained in:
StapleButter
2017-02-03 18:47:40 +01:00
parent f4335b9292
commit 1f691f3795
6 changed files with 46 additions and 16 deletions
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7
DMA.cpp
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@ -89,8 +89,9 @@ void DMA::WriteCnt(u32 val)
Start();
//else
// printf("SPECIAL ARM%d DMA%d START MODE %02X\n", CPU?7:9, Num, StartMode);
if (StartMode!=0x00 && StartMode!=0x10 && StartMode!=0x05 && StartMode!=0x12)
if ((StartMode&7)!=0x00 && (StartMode&7)!=0x1 && StartMode!=2 && StartMode!=0x05 && StartMode!=0x12)
printf("UNIMPLEMENTED ARM%d DMA%d START MODE %02X\n", CPU?7:9, Num, StartMode);
//if (StartMode==2)printf("HBLANK DMA %08X -> %08X\n", SrcAddr, DstAddr);
}
}
@ -106,13 +107,13 @@ void DMA::Start()
if (!RemCount)
RemCount = countmask+1;
if ((Cnt & 0x00060000) == 0x00060000)
if ((Cnt & 0x00600000) == 0x00600000)
CurDstAddr = DstAddr;
// special path for cart DMA. this is a gross hack.
// emulating it properly requires emulating cart transfer delays, so uh... TODO
if (CurSrcAddr==0x04100010 && RemCount==1 && (Cnt & 0x07E00000)==0x07000000 &&
((CPU==0 && StartMode==0x05) || (CPU==1 && StartMode==0x12)))
StartMode==0x05 || StartMode==0x12)
{
NDSCart::DMA(CurDstAddr);
Cnt &= ~0x80000000;