private void Run()
{
ArrayList cleanInputBuf = new ArrayList();
ArrayList inputBuf = new ArrayList();
Task tsk = null;
ExternalInputEvent evt = default(ExternalInputEvent);
while (true)
{
// Detect the end of the simulation run
if (nextTime == STOPPING)
{
nextTime = pq.MinPriority();
break;
}
if (pendingInput.Count > 0)
{
// Fetch pending input events
inputBuf = pendingInput;
pendingInput = cleanInputBuf;
}
else if (nextTime <= mCurrentTime)
{
// Fetch the next pending task
tsk = NextTask();
if (ReferenceEquals(tsk, null))
{
continue; // This task was canceled, go round again
}
inputBuf.Clear();
}
else
{
tsk = null;
}
if (inputBuf.Count > 0)
{
// Process pending input events
for (int i = 0; i <= inputBuf.Count - 1; i++)
{
evt = (ExternalInputEvent)(inputBuf[i]);
evt.TimeStamp = mCurrentTime;
evt.Handler.HandleInput(evt);
}
inputBuf.Clear();
cleanInputBuf = inputBuf;
}
else if (tsk != null)
{
// Run the first pending task
tsk.Start();
}
else
{
// Run the CPU simulation for a bit (maxRunCycl)
try
{
mCPU.RunEmulation();
}
catch (Exception ex)
{
X8086.Notify("Shit happens at {0}:{1}: {2}", X8086.NotificationReasons.Fck, mCPU.Registers.CS.ToString("X4"), mCPU.Registers.IP.ToString("X4"), ex.Message);
mCPU.RaiseException($"Scheduler Main Loop Error: {ex.Message}");
}
if (mCPU.IsHalted)
{
SkipToNextEvent(); // The CPU is halted, skip immediately to the next event
}
}
}
}
