//
// UI Event handlers:
//
private void StartToolStripMenuItem_Click(object sender, EventArgs e)
{
if (!_system.IsExecuting)
{
SystemExecutionContext context = new SystemExecutionContext(null, null, null, OnExecutionError);
_system.StartExecution(context);
}
else
{
_system.StopExecution();
}
}
protected override void OnShown(EventArgs e)
{
base.OnShown(e);
if (firstShown)
{
firstShown = false;
if (Configuration.Start && !_system.IsExecuting)
{
SystemExecutionContext context = new SystemExecutionContext(null, null, null, OnExecutionError);
_system.StartExecution(context);
}
}
}
private void OnDebuggerWindowClosed(object sender, FormClosedEventArgs e)
{
_debuggerWindow = null;
//
// Reattach our context if the system is currently running.
//
if (_system.IsExecuting)
{
_system.StopExecution();
SystemExecutionContext context = new SystemExecutionContext(null, null, null, OnExecutionError);
_system.StartExecution(context);
}
}
private void StartExecution(bool singleStepIOP, bool singleStepCP, bool singleStepMesa)
{
_singleStepIOP = singleStepIOP;
_singleStepCP = singleStepCP;
_singleStepMesa = singleStepMesa;
SystemExecutionContext context =
new SystemExecutionContext(StepCallback8085, StepCallbackCP, StepCallbackMesa, ErrorCallback);
_system.StartExecution(context);
if (!_singleStepCP && !_singleStepIOP && !_singleStepMesa)
{
WriteLine("System started.");
}
}
private void LoadHardDiskToolStripMenuItem_Click(object sender, EventArgs e)
{
string imagePath = ShowImageLoadDialog(false);
if (!string.IsNullOrWhiteSpace(imagePath))
{
//
// Timer to update progress bar while loading:
//
Timer t = new Timer();
t.Interval = 100;
t.Enabled = true;
t.Tick += (o, i) =>
{
if (ProgressBar.Value >= ProgressBar.Maximum)
{
ProgressBar.Value = 0;
}
ProgressBar.Increment(10);
};
//
// Do load asynchronously. UI is disabled during this time.
//
System.Threading.ThreadPool.QueueUserWorkItem(
delegate
{
BeginInvoke((MethodInvoker) delegate
{
//
// Set up status bar
//
ProgressBar.Visible = true;
ProgressBar.Style = ProgressBarStyle.Blocks;
ProgressBar.Value = 0;
ProgressBar.Minimum = 0;
ProgressBar.Maximum = 100;
//
// Disable UI
//
SystemMenu.Enabled = false;
});
//
// Pause the system if it's running.
//
bool isRunning = _system.IsExecuting;
SystemExecutionContext context = _system.ExecutionContext;
if (isRunning)
{
_system.StopExecution();
}
DialogResult res = DialogResult.Yes;
try
{
// Commit current image to disk.
_system.HardDrive.Save();
}
catch (Exception ex)
{
res = MessageBox.Show(
String.Format("Unable to save current hard drive's contents. Error: {0}. Continue loading new drive image?", ex.Message),
"Error:",
MessageBoxButtons.YesNo);
}
if (res == DialogResult.Yes)
{
try
{
// Load new image.
_system.HardDrive.Load(imagePath);
}
catch (Exception ex)
{
MessageBox.Show(
String.Format("Unable to load drive image. Error: {0}", ex.Message),
"Error:");
}
Configuration.HardDriveImage = imagePath;
}
//
// Restart the system if necessary
//
if (isRunning)
{
_system.StartExecution(context);
}
//
// Hide status text, re-enable UI
//
this.BeginInvoke((MethodInvoker) delegate
{
t.Stop();
ProgressBar.Visible = false;
SystemMenu.Enabled = true;
UpdateHardDriveLabel();
});
});
}
}
