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2D: add support for 8bit reads to DISPCNT/BGCNT. 

fixes #331
This commit is contained in:
StapleButter 2018-12-21 17:53:48 +01:00
parent 63ae6bf8fb
commit 7a949ddd0e
1 changed files with 16 additions and 2 deletions
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18
src/GPU2D.cpp
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@ -220,6 +220,20 @@ u8 GPU2D::Read8(u32 addr)
{ {
switch (addr & 0x00000FFF) switch (addr & 0x00000FFF)
{ {
case 0x000: return DispCnt & 0xFF;
case 0x001: return (DispCnt >> 8) & 0xFF;
case 0x002: return (DispCnt >> 16) & 0xFF;
case 0x003: return DispCnt >> 24;
case 0x008: return BGCnt[0] & 0xFF;
case 0x009: return BGCnt[0] >> 8;
case 0x00A: return BGCnt[1] & 0xFF;
case 0x00B: return BGCnt[1] >> 8;
case 0x00C: return BGCnt[2] & 0xFF;
case 0x00D: return BGCnt[2] >> 8;
case 0x00E: return BGCnt[3] & 0xFF;
case 0x00F: return BGCnt[3] >> 8;
case 0x048: return WinCnt[0]; case 0x048: return WinCnt[0];
case 0x049: return WinCnt[1]; case 0x049: return WinCnt[1];
case 0x04A: return WinCnt[2]; case 0x04A: return WinCnt[2];
@ -234,8 +248,8 @@ u16 GPU2D::Read16(u32 addr)
{ {
switch (addr & 0x00000FFF) switch (addr & 0x00000FFF)
{ {
case 0x000: return DispCnt&0xFFFF; case 0x000: return DispCnt & 0xFFFF;
case 0x002: return DispCnt>>16; case 0x002: return DispCnt >> 16;
case 0x008: return BGCnt[0]; case 0x008: return BGCnt[0];
case 0x00A: return BGCnt[1]; case 0x00A: return BGCnt[1];