private void Cpu_AfterInstructionExecution(object sender, InstructionEventArgs e)
{
if (cycleStartTime == null && prevValue == (outputLatch.Value & SpeakerBit))
{
prevValue = outputLatch.Value & SpeakerBit;
return;
}
prevValue = outputLatch.Value & SpeakerBit;
if (cycleStartTime == null)
{
StartCycle();
}
instructionCount++;
outputLatchHistory.Add(outputLatch.Value);
var elapsedMs = (systemTime.Now - cycleStartTime.Value).TotalMilliseconds;
if (elapsedMs > targetCycleLengthMs)
{
new Thread(() => { GenerateSound(elapsedMs, outputLatchHistory); }).Start();
cycleStartTime = null;//wait for next transition
}
}
protected virtual void OnInstruction(Instruction instruction)
{
CpuEventHandler <InstructionEventArgs> handler = Instruction;
if (handler != null)
{
InstructionEventArgs args = new InstructionEventArgs
{
OpCode = instruction.OpCode,
Cycles = instruction.Cycles
};
handler(this, args);
}
}
