private void OnBreakpointHit(object sender, BreakpointHitEventArgs e)
{
var boundBreakpoints = new[] { _breakpointManager.GetBreakpoint(e.Breakpoint) };
// An engine that supports more advanced breakpoint features such as hit counts, conditions and filters
// should notify each bound breakpoint that it has been hit and evaluate conditions here.
Send(new AD7BreakpointEvent(new AD7BoundBreakpointsEnum(boundBreakpoints)), AD7BreakpointEvent.IID, _threads.Item2);
}
private static void DebuggerThread()
{
//
// Wait for the display to be ready.
//
_console.WaitForSync();
ConsoleExecutor debuggerPrompt = new ConsoleExecutor(_imlacSystem);
if (_startupArgs.Length > 0)
{
//
// Assume arg 0 is a script file to be executed.
//
Console.WriteLine("Executing startup script '{0}'", _startupArgs[0]);
try
{
_state = debuggerPrompt.ExecuteScript(_imlacSystem, _startupArgs[0]);
}
catch (Exception e)
{
Console.WriteLine("Error parsing script: {0}", e.Message);
}
}
while (_state != SystemExecutionState.Quit)
{
try
{
switch (_state)
{
case SystemExecutionState.Halted:
case SystemExecutionState.Debugging:
_state = debuggerPrompt.Prompt(_imlacSystem);
break;
case SystemExecutionState.SingleStep:
_imlacSystem.SingleStep();
_imlacSystem.Display.RenderCurrent(false);
_state = SystemExecutionState.Debugging;
break;
case SystemExecutionState.SingleFrame:
_imlacSystem.SingleStep();
if (_imlacSystem.DisplayProcessor.FrameLatch)
{
Console.WriteLine("Frame completed.");
_state = SystemExecutionState.Debugging;
}
break;
case SystemExecutionState.UntilDisplayStart:
_imlacSystem.SingleStep();
if (_imlacSystem.DisplayProcessor.State == ProcessorState.Running)
{
Console.WriteLine("Display started.");
_state = SystemExecutionState.Debugging;
}
break;
case SystemExecutionState.Running:
_imlacSystem.SingleStep();
if (_imlacSystem.Processor.State == ProcessorState.Halted)
{
Console.WriteLine("Main processor halted at {0}", Helpers.ToOctal(_imlacSystem.Processor.PC));
_state = SystemExecutionState.Debugging;
}
else if (_imlacSystem.Processor.State == ProcessorState.BreakpointHalt)
{
Console.WriteLine(
"Breakpoint hit: {0} at address {1}",
BreakpointManager.GetBreakpoint(_imlacSystem.Processor.BreakpointAddress),
Helpers.ToOctal(_imlacSystem.Processor.BreakpointAddress));
_state = SystemExecutionState.Debugging;
}
break;
}
}
catch (Exception e)
{
if (!(e is System.Threading.ThreadAbortException))
{
Console.WriteLine("Internal error during execution: {0}", e.Message);
_state = SystemExecutionState.Debugging;
}
}
}
// We are exiting, shut things down.
//
_imlacSystem.Shutdown();
}
