private void OnVmStep(Object vm, VirtualMachineStepArgs args)
{
if (args.Score != 0.0)
{
_scoreLabel.Text = args.Score.ToString();
}
_fuelLabel.Text = args.Fuel.ToString();
_orbitVisualizer.SetOrbiterPos(new Vector2d(args.X, args.Y));
_orbitVisualizer.Invalidate();
_offsetLabel.Text = ((int)(args.Distance - args.TargetRadius)).ToString();
}
private void OnVmStep(Object vm, VirtualMachineStepArgs args)
{
if (args.Score != 0.0)
{
_scoreLabel.Text = args.Score.ToString();
}
_elapsed++;
_fuelLabel.Text = args.Fuel.ToString();
_orbitVisualizer.SetOrbiterPos(args.Position);
_orbitVisualizer.SetTargetPos(args.TargetPosition);
_orbitVisualizer.Invalidate();
_offsetLabel.Text = ((int)(args.OrbitRadius - args.TargetOrbitRadius)).ToString();
_targetOffsetLabel.Text = ((int)((args.Position - args.TargetPosition).length())).ToString();
}
public VirtualMachineStepArgs Step()
{
Debug.Assert(Configuration != 0.0);
for (int ip = 0; ip <= _program.Length; ip++)
{
#region Interpreter
int frame = _program.Instructions[ip];
if ((frame & (0xF0000000)) == 0) // S-Type
{
int op = frame >> 24;
int imm = (frame >> 21) & 0x07;
int r1 = frame & 0x3FFF;
switch (op)
{
case 0x0: // noop
break;
case 0x1: // Cmpz
switch (imm)
{
case 0x0: // <
_status = _memory[r1] < 0.0;
break;
case 0x1: // <=
_status = _memory[r1] <= 0.0;
break;
case 0x2: // ==
_status = _memory[r1] == 0.0;
break;
case 0x3: // >=
_status = _memory[r1] >= 0.0;
break;
case 0x4: // >
_status = _memory[r1] > 0.0;
break;
default:
Debug.Assert(false, "Illegal S-Type ImmCode: " + String.Format("0x{0:x4}", imm));
break;
}
break;
case 0x2: // Sqrt
_memory[ip] = Math.Sqrt(_memory[r1]);
break;
case 0x3: // Copy
_memory[ip] = _memory[r1];
break;
case 0x4: // Input
_memory[ip] = _input[r1];
break;
default:
Debug.Assert(false, "Illegal S-Type Opcode: " + String.Format("0x{0:x4}", op));
break;
}
}
else // D-Type
{
int op = frame >> 28;
int r1 = (frame & 0x0FFFFFFF) >> 14;
int r2 = frame & 0x3FFF;
switch (op)
{
case 0x1: // Add
_memory[ip] = _memory[r1] + _memory[r2];
break;
case 0x2: // Subtract
_memory[ip] = _memory[r1] - _memory[r2];
break;
case 0x3: // Multiply
_memory[ip] = _memory[r1] * _memory[r2];
break;
case 0x4: // Divide
if (_memory[r2] == 0.0)
{
_memory[ip] = 0.0;
}
else
{
_memory[ip] = _memory[r1] / _memory[r2];
}
break;
case 0x5: // Output
_output[r1] = _memory[r2];
break;
case 0x6: // Phi
_memory[ip] = _status ? _memory[r1] : _memory[r2];
break;
default:
Debug.Assert(false, "Illegal D-Type Opcode: " + String.Format("0x{0:x4}", op));
break;
}
}
#endregion
}
if (_traceFile != null && _changes.Count > 0)
{
Debug.Assert(_output[0x0] == 0.0); // blow up if we change something on the last frame
Debug.WriteLine("recording " + _changes.Count + " changes (Elapsed = " + Elapsed + ")");
_traceFile.Write(Elapsed);
_traceFile.Write(_changes.Count);
foreach (var change in _changes)
{
_traceFile.Write(change.Address);
_traceFile.Write(change.Value);
}
_changes.Clear();
}
if (_traceFile != null && _output[0x0] != 0.0)
{
this.EndTrace();
}
Elapsed = Elapsed + 1;
var args = new VirtualMachineStepArgs(Elapsed, _output[0x0], _output[0x1], _output[0x2], _output[0x3], _output[0x4], _output[0x5]);
if (OnStep != null)
{
OnStep(this, args);
}
return(args);
} // Step()