public void Run()
{
VCDSignalsSnapshot topLevelSnapshot = new VCDSignalsSnapshot("TOP");
var controlScope = topLevelSnapshot.Scope("Control");
var clockSignal = controlScope.Add(new VCDVariable("Clock", true, 1));
_topLevel.PopulateSnapshot(topLevelSnapshot);
_vcdBuilder?.Init(topLevelSnapshot);
var clock = 0;
var stageIteration = 0;
while (clock < MaxClockCycles && (IsRunning?.Invoke(_topLevel) ?? true))
{
var currentTime = clock * 2 * MaxStageIterations;
clockSignal.Value = true;
stageIteration = 0;
do
{
currentTime++;
var modified = _topLevel.Stage(stageIteration);
_topLevel.PopulateSnapshot(topLevelSnapshot);
_vcdBuilder?.Snapshot(currentTime, topLevelSnapshot);
// no modules were modified during stage iteration, all converged
if (!modified)
{
break;
}
}while (++stageIteration < MaxStageIterations);
if (stageIteration >= MaxStageIterations)
{
throw new MaxStageIterationReachedException();
}
OnPostStage?.Invoke(_topLevel);
currentTime = clock * 2 * MaxStageIterations + MaxStageIterations;
clockSignal.Value = false;
_topLevel.PopulateSnapshot(topLevelSnapshot);
_vcdBuilder?.Snapshot(currentTime, topLevelSnapshot);
_topLevel.Commit();
clock++;
}
}
public void TraceToVCD(string outputFileName)
{
Console.WriteLine($"Tracing to: {outputFileName}");
RecursiveCreateTargetDirectory(Path.GetDirectoryName(outputFileName));
_vcdBuilder = new VCDBuilder(outputFileName);
_topLevelSnapshot = new VCDSignalsSnapshot("TOP");
_simulatorContext.ControlScope = _topLevelSnapshot.Scope("Control");
_simulatorContext.ClockSignal = _simulatorContext.ControlScope.Add(new VCDVariable("Clock", true, 1));
_topLevel.PopulateSnapshot(_topLevelSnapshot);
_vcdBuilder.Init(_topLevelSnapshot);
}
public void Test()
{
var vcd = new VCDBuilder(@"C:\tmp\1.vcd");
var topScope = new VCDSignalsSnapshot("TOP");
topScope.Add(new VCDVariable("data", (byte)0, 1));
var childScope = topScope.Scope("ChildScope1");
var signal1 = childScope.Add(new VCDVariable("Signal1", true, 1));
var signal2 = childScope.Add(new VCDVariable("Signal2", "Value", 1));
vcd.Init(topScope);
signal1.Value = false;
signal2.Value = "NewValue";
vcd.Snapshot(10, topScope);
vcd.Snapshot(20, null);
}
public void Test()
{
if (!Debugger.IsAttached)
{
Assert.Inconclusive("Run under debugger");
}
var vcd = new VCDBuilder(@"C:\tmp\1.vcd");
var topScope = new VCDSignalsSnapshot("TOP");
topScope.Add(new VCDVariable("data", (byte)0, 1));
var childScope = topScope.Scope("ChildScope1");
var signal1 = childScope.Add(new VCDVariable("Signal1", true, 1));
var signal2 = childScope.Add(new VCDVariable("Signal2", "Value", 1));
vcd.Init(topScope);
signal1.Value = false;
signal2.Value = "NewValue";
vcd.Snapshot(10, topScope);
vcd.Snapshot(20, null);
}
