/// <summary>
/// Function added to display result of cpu exercizer test
/// </summary>
public void PerformMultipleStep(string fullPath, int memoryOffset)
{
if (MCU.LoadFileInMemoryAt(fullPath, memoryOffset))
{
_currentState = TCurrentState.RUNNING;
while (_currentState != TCurrentState.STOPPED)
{
if (!_cpu.Halted)
{
_cpu.Fetch();
_cpu.Execute();
}
// CP/M warm boot (test finished and restarted itself)
if (_cpu.PC == 0x00)
{
_currentState = TCurrentState.STOPPED;
}
// Call to CP/M bios emulated function to write characters on screen
if (_cpu.PC == 0x05)
{
_cpu.PerformBdosCall();
}
}
}
}
private void TimerAsync_CallBack(object state)
{
if (_currentState != TCurrentState.STOPPED)
{
long currentTime = _stopWatch.ElapsedMilliseconds;
long elapsedTimeFromLastPeriod = currentTime - _lastValue;
long numberOfCycleToRun = 2000 * elapsedTimeFromLastPeriod;
while (numberOfCycleToRun > 0 && _currentState != TCurrentState.STOPPED)
{
if (_currentState == TCurrentState.STOPPED)
{
break;
}
else if (_currentState == TCurrentState.PAUSED)
{
_stopWatch.Stop();
_autoReset.WaitOne();
_stopWatch.Start();
}
numberOfCycleToRun -= PerformSingleStep();
}
_lastValue = currentTime;
_timer.Change(0, Timeout.Infinite);
}
else
{
_timer.Change(Timeout.Infinite, Timeout.Infinite);
OnEmulatorStateChange(_currentState = TCurrentState.STOPPED);
}
}
public void ResumeEmulation()
{
if (_currentState == TCurrentState.PAUSED)
{
_autoReset.Set();
_currentState = TCurrentState.RUNNING;
}
}
public void Run(string[] multipleRomFiles)
{
if (_currentState == TCurrentState.STOPPED)
{
if (MCU.LoadMultipleFiles(multipleRomFiles))
{
_stopWatch.Start();
_currentState = TCurrentState.RUNNING;
_timer = new Timer(TimerAsync_CallBack, null, 0, Timeout.Infinite);
}
}
}
public void Run(String fullPath, int offset)
{
if (_currentState == TCurrentState.STOPPED)
{
if (MCU.LoadFileInMemoryAt(fullPath, offset))
{
_stopWatch.Start();
_currentState = TCurrentState.RUNNING;
_timer = new Timer(TimerAsync_CallBack, null, 0, Timeout.Infinite);
}
}
}
public void PauseEmulation()
{
if (_currentState == TCurrentState.RUNNING)
{
_currentState = TCurrentState.PAUSED;
}
else if (_currentState == TCurrentState.PAUSED)
{
_currentState = TCurrentState.RUNNING;
_autoReset.Set();
}
}
public void StopEmulation()
{
if (_currentState != TCurrentState.STOPPED)
{
_currentState = TCurrentState.STOPPED;
_stopWatch.Stop();
_mcu.Clear();
_cpu.Initialize();
_gpu.Initialize();
}
}
private Emulator()
{
_currentState = TCurrentState.STOPPED;
_nextVblankInterrupt = GPU.END_VBLANK_OPCODE;
_mcu = new MCUR();
_cpu = new CPU();
_cpu.Initialize();
_gpu = new GPU();
_gpu.Initialize();
_devices = new Devices();
_stopWatch = new Stopwatch();
_currentState = TCurrentState.STOPPED;
_autoReset = new AutoResetEvent(false);
}
