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Aligned ARAM DMA to 32 byte boundaries and multiples of 4 bytes in length 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5638 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
skidau 2010-06-09 12:05:00 +00:00
parent 4a0c8fc0c9
commit b3046be7ad
1 changed files with 5 additions and 3 deletions
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8
Source/Core/Core/Src/HW/DSP.cpp
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@ -426,6 +426,7 @@ void Write16(const u16 _Value, const u32 _Address)
// __OSInitAudioSystem sets to 0x43 -> expects 16bit adressing and mapping to dsp iram?
// __OSCheckSize sets = 0x20 | 3 (keeps upper bits)
// 0x23 -> Zelda standard mode (standard ARAM access ??)
// 0x43 -> Set by Eternal Darkness and SSBB
// 0x63 -> ARCheckSize Mode (access AR-registers ??) or no exception ??
break;
@ -434,25 +435,26 @@ void Write16(const u16 _Value, const u32 _Address)
break;
case AR_REFRESH:
// 0x9c -> Set by Eternal Darkness
g_AR_REFRESH = _Value;
break;
case AR_DMA_MMADDR_H:
g_arDMA.MMAddr = (g_arDMA.MMAddr & 0xFFFF) | (_Value<<16); break;
case AR_DMA_MMADDR_L:
g_arDMA.MMAddr = (g_arDMA.MMAddr & 0xFFFF0000) | (_Value); break;
g_arDMA.MMAddr = (g_arDMA.MMAddr & 0xFFFF0000) | (_Value); break; // Is MMAddr also 32 byte aligned?
case AR_DMA_ARADDR_H:
g_arDMA.ARAddr = (g_arDMA.ARAddr & 0xFFFF) | (_Value<<16); break;
case AR_DMA_ARADDR_L:
g_arDMA.ARAddr = (g_arDMA.ARAddr & 0xFFFF0000) | (_Value); break;
g_arDMA.ARAddr = (g_arDMA.ARAddr & 0xFFFF0000) | (_Value) + (_Value % 32); break;
case AR_DMA_CNT_H:
g_arDMA.Cnt.Hex = (g_arDMA.Cnt.Hex & 0xFFFF) | (_Value<<16);
break;
case AR_DMA_CNT_L:
g_arDMA.Cnt.Hex = (g_arDMA.Cnt.Hex & 0xFFFF0000) | (_Value);
g_arDMA.Cnt.Hex = (g_arDMA.Cnt.Hex & 0xFFFF0000) | (_Value) + (_Value % 4);
Do_ARAM_DMA();
break;