void ISystemBase.run()
{
int iRetraceIntervalMS = 1000 / RETRACE_RATE;
DateTime dtNextRetrace = DateTime.UtcNow.AddMilliseconds(iRetraceIntervalMS);
m_bRun = true;
bool bRetraceActive = false;
int ScanLine = 0;
int iScanLineFlip = m_VideoInfo.Rows * m_VideoInfo.CharHeight;
while (m_bRun)
{
// screen emulate one scan line
m_funcDrawScanLine(ScanLine);
ScanLine++;
if (ScanLine >= iScanLineFlip)
{
ScanLine = 0;
}
if (bRetraceActive)
{
// emulate screen retrace connected to PIA1 CB1 and VIA PB5
bRetraceActive = false;
m_pia1.CB1 = Signal.Rise;
m_via.InputB(5, bRetraceActive);
}
if (DateTime.UtcNow >= dtNextRetrace)
{
Application.DoEvents();
// emulate screen retrace connected to PIA1 CB1 and VIA PB5
bRetraceActive = true;
m_pia1.CB1 = Signal.Fall;
m_via.InputB(5, bRetraceActive);
m_via.emulateCycle();
dtNextRetrace = DateTime.UtcNow.AddMilliseconds(iRetraceIntervalMS);
}
m_cpu.emulateCycle();
}
}
void ISystemBase.run()
{
int iRetraceIntervalMS = 1000 / RETRACE_RATE;
DateTime dtNextRetrace = DateTime.UtcNow.AddMilliseconds(iRetraceIntervalMS);
m_bRun = true;
int ScanLine = 0;
int iScanLineFlip = m_VideoInfo.Rows * m_VideoInfo.CharHeight;
while (m_bRun)
{
// screen emulate one scan line
m_funcDrawScanLine(ScanLine);
ScanLine++;
if (ScanLine >= iScanLineFlip)
{
ScanLine = 0;
}
if (DateTime.UtcNow >= dtNextRetrace)
{
Application.DoEvents();
if (m_bNeedRefresh)
{
m_bNeedRefresh = false;
// check queue for characters to display
while (m_DisplayQueue.Count > 0)
{
outputDsp(m_DisplayQueue.Dequeue());
}
}
dtNextRetrace = DateTime.UtcNow.AddMilliseconds(iRetraceIntervalMS);
}
m_cpu.emulateCycle();
}
}
