/// <summary>
/// Executes one program step. Stops running timer if 1. out of program bounds AND warning message has not yet been shown 2. a breakpoint is hit
/// </summary>
private void ProgramStep()
{
try
{
InstructionProcessor.PCStep();
}
catch (IndexOutOfRangeException)
{
Stop();
UpdateUI();
Dispatcher.Invoke(() =>
{
MessageBox.Show("Tried to get/set an out of range register!\nCheck your code!", "Index out of range");
});
return;
}
if (IsPCOutOfRange())
{
if (!OutOfBoundsMessageShown)
{
StopAndUpdateUI();
}
}
else if (IsBreakpointHit())
{
StopAndUpdateUI();
}
}
/// <summary>
/// Step function. Executes current command of loaded program and increases PC
/// </summary>
/// <returns>false if within program bounds, true if PC left program bounds</returns>
public static void PCStep()
{
if (Data.IsProgramInitialized())
{
if (!Data.IsSleeping())
{
if (Data.GetPC() < Data.GetProgram().Count)
{
Data.Command com = Data.GetProgram()[Data.GetPC()];
Data.IncPC();
InstructionProcessor.Execute(Data.InstructionLookup(com), com);
}
else //PC has left program area
{
Data.IncPC();
}
}
SkipCycle();
}
}