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Minor reformat

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This commit is contained in:
Souryo 2014-06-22 00:00:56 -04:00
parent 18e4c16c32
commit 43648e3cf6
1 changed files with 4 additions and 5 deletions
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9
Core/PPU.cpp
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@ -228,7 +228,7 @@ void PPU::IncVerticalScrolling()
} else if(y == 31){
y = 0; // coarse Y = 0, nametable not switched
} else {
y += 1; // increment coarse Y
y++; // increment coarse Y
}
addr = (addr & ~0x03E0) | (y << 5); // put coarse Y back into v
}
@ -239,13 +239,12 @@ void PPU::IncVerticalScrolling()
void PPU::IncHorizontalScrolling()
{
//Increase coarse X scrolling value.
//When the value is 31, wrap around to 0 and switch nametable
uint16_t addr = _state.VideoRamAddr;
if((addr & 0x001F) == 31) {
addr &= ~0x001F;
addr ^= 0x0400; // switch horizontal nametable
//When the value is 31, wrap around to 0 and switch nametable
addr = (addr & ~0x001F) ^ 0x0400;
} else {
addr += 1;
addr++;
}
_state.VideoRamAddr = addr;
}