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add some more GPU IO

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This commit is contained in:
StapleButter
2017-07-23 15:31:09 +02:00
parent f869975a51
commit e6f5507c9e
3 changed files with 38 additions and 3 deletions
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23
src/GPU2D.cpp
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@ -105,6 +105,11 @@ void GPU2D::Reset()
memset(Win1Coords, 0, 4);
memset(WinCnt, 0, 4);
BGMosaicSize[0] = 0;
BGMosaicSize[1] = 0;
OBJMosaicSize[0] = 0;
OBJMosaicSize[1] = 0;
BlendCnt = 0;
EVA = 16;
EVB = 0;
@ -238,6 +243,15 @@ void GPU2D::Write8(u32 addr, u8 val)
case 0x04A: WinCnt[2] = val; return;
case 0x04B: WinCnt[3] = val; return;
case 0x04C:
BGMosaicSize[0] = val & 0xF;
BGMosaicSize[1] = val >> 4;
return;
case 0x04D:
OBJMosaicSize[0] = val & 0xF;
OBJMosaicSize[1] = val >> 4;
return;
case 0x050: BlendCnt = (BlendCnt & 0x3F00) | val; return;
case 0x051: BlendCnt = (BlendCnt & 0x00FF) | (val << 8); return;
case 0x052:
@ -245,7 +259,7 @@ void GPU2D::Write8(u32 addr, u8 val)
EVA = val & 0x1F;
if (EVA > 16) EVA = 16;
return;
case 0x53:
case 0x053:
BlendAlpha = (BlendAlpha & 0x001F) | ((val & 0x1F) << 8);
EVB = val & 0x1F;
if (EVB > 16) EVB = 16;
@ -353,6 +367,13 @@ void GPU2D::Write16(u32 addr, u16 val)
WinCnt[3] = val >> 8;
return;
case 0x04C:
BGMosaicSize[0] = val & 0xF;
BGMosaicSize[1] = (val >> 4) & 0xF;
OBJMosaicSize[0] = (val >> 8) & 0xF;
OBJMosaicSize[1] = val >> 12;
return;
case 0x050: BlendCnt = val & 0x3FFF; return;
case 0x052:
BlendAlpha = val & 0x1F1F;