public void Run(Machine.Instruction[] program)
{
exec = new Machine.Emulator(program, x => Log(x));
pauseButton.Text = "Pause";
pauseButton.Enabled = true;
programCounter.Enabled = true;
}
private void End()
{
if (exec != null)
{
Log("End");
pauseButton.Enabled = false;
}
exec = null;
programCounter.Enabled = false;
}
static void Main(string[] args)
{
if (args.Length == 0)
{
Console.Error.WriteLine("Usage: trun filename");
return;
}
Machine.Emulator exec = null;
try
{
exec = new Machine.Emulator(Machine.Language.Parse(File.ReadAllLines(args[0])), x => Console.WriteLine(x));
bool end = false;
while (!end)
{
switch (exec.Execute(int.MaxValue))
{
case Machine.Emulator.ExecutionState.Ended:
end = true;
break;
case Machine.Emulator.ExecutionState.Paused:
Console.WriteLine("Program paused");
PrintState(exec);
Console.WriteLine(" (Press enter to continue)");
Console.ReadLine();
break;
}
}
}
catch (Machine.CommandException ex)
{
Console.Error.WriteLine(ex.Message);
if (ex.InnerException is Machine.CommandNotFoundException)
{
Console.WriteLine("Known commands: ");
Console.WriteLine(" [label]:");
foreach (var cmd in Machine.Language.Commands)
{
if (cmd.RequiresParameter)
{
Console.WriteLine(" " + cmd.Name + " [" + cmd.Parameter + "]");
}
else
{
Console.WriteLine(" " + cmd.Name);
}
}
}
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
}
if (exec != null)
{
Console.WriteLine("Program exited");
PrintState(exec);
}
}
static void PrintState(Machine.Emulator exec)
{
Console.WriteLine(" Instructions executed: " + exec.InstructionCounter);
Console.WriteLine(" SP=" + exec.State.sp + ", AC=" + exec.State.ac);
Console.WriteLine(" Stack=" + exec.State.StackToString(8));
}