protected override void ExecuteInternal(IExecutionEnvironment environment, IList <IInstruction> instructions)
{
CurrentInstruction.Execute(environment);
if (CurrentInstruction is BranchAndExchangeInstruction baeInstruction)
{
// TODO: Implement thumb mode
if (baeInstruction.IsThumbMode)
{
throw new InvalidOperationException("Thumb mode is not supported.");
}
}
if (!(environment.CpuState is Aarch32CpuState armCpuState))
{
throw new InvalidOperationException("CpuState is not supported.");
}
// If a branch was executed
if (CurrentInstruction is BranchInstruction branchInstruction && branchInstruction.IsBranching)
{
// Clear buffer and and get 2 new instructions from new PC
_instructionBuffer.Clear();
// Buffer next 2 instructions
GetNextInstruction(environment, instructions);
GetNextInstruction(environment, instructions);
}
public int ExecuteNext()
{
var(move, increase) = CurrentInstruction.Execute();
Position += move;
Accumulator += increase;
if (Position > LoadedProgram.Count - 1)
{
RanToCompletion = true;
}
return(Accumulator);
}
public bool Step()
{
if (quit)
{
return(false);
}
CurrentInstruction = Environment.Delegate.instructions[Environment.ProgramCounter];
#if DEBUG
Environment.AddHistoryEntry(CurrentInstruction);
#endif
try
{
CurrentInstruction.Execute(Environment);
}
catch (ScriptException e)
{
HandleException(e, Environment);
}
catch (TargetInvocationException e)
{
HandleException(new ScriptException(CurrentInstruction, e.InnerException), Environment);
}
catch (Exception e)
{
HandleException(new ScriptException(CurrentInstruction, e), Environment);
}
if (Environment.ProgramCounter < -1 ||
Environment.ProgramCounter >= Environment.Delegate.instructions.Length)
{
throw new ScriptException(CurrentInstruction, new IndexOutOfRangeException());
}
Environment.ProgramCounter++;
if (Environment.IsReturning ||
Environment.ProgramCounter >= Environment.Delegate.instructions.Length)
{
quit = true;
return(false);
}
return(true);
}
protected void Update()
{
if (CurrentInstruction != null)
{
CurrentInstruction.Execute();
}
else
{
GetNextInstruction();
}
if (CurrentInstruction == null)
{
return;
}
else if ((CurrentInstruction.GetType() != typeof(Attack) && CurrentInstruction.GetType() != typeof(FixBreaker) && CurrentInstruction.GetType() != typeof(CreateNest) && CurrentInstruction.GetType() != typeof(CreateQueen)) && isWalking == true)
{
isWalking = false;
StartCoroutine(walkingLoop());
}
}
