void Video::updateGraphics(const int &cycles, CPU &cpuTemp)
{
setLCDStatus(cpuTemp);
if (isLCDEnabled())
_scanLineCounter -= cycles;
else
return;
if (_scanLineCounter <= 0)
{
// time to move onto next scanline
_memory->directModification(LY, _memory->read(LY) + 1);
BYTE currentline = _memory->read(LY);
_scanLineCounter = 456;
// we have entered vertical blank period
if (currentline == 144)
cpuTemp.requestInterrupt(VBlank);
// if gone past scanline 153 reset to 0
else if (currentline > 153)
_memory->directModification(LY, 0x00);
// draw the current scanline
else if (currentline < 144)
drawScanLine();
}
}
void Lcd::advanceTransfer()
{
if (lcdCycles >= 172)
{
setMode(HBlank);
drawScanLine();
incrementScanLine();
}
}
