private void LogInstruction()
{
var nextInstr = Disassembler.DisassembleInstruction(InstructionLookahead.Passive(State));
_logger.WriteLine();
_logger.WriteLine($"--- PC = 0x{State.Registers.PC.Value:X4}; {nextInstr.Text} ---");
}
public static string Trace(IMachineState state)
{
var pc = state.Registers.PC.Value;
var disassembledInstr = Disassembler.DisassembleInstruction(InstructionLookahead.Passive(state));
var bytes = string.Join(" ", Enumerable.Range(0, disassembledInstr.Length).Select(i => state.Memory[pc + i].ToString("X2")));
var hl = state.Memory[state.Registers.HL.Value];
return($"0x{pc:X4}: {bytes,-10} {disassembledInstr.Text,-15} {state.Registers.ToString()}; (HL)={hl:X2}");
}
public void Run()
{
runLoop:
while (Running)
{
//if (State.Registers.PC.Value > 0x100)
//{
// LogInstruction();
//}
_stopwatch.Restart();
var lastElapsed = ElapsedCycles;
var clockCounter = 0;
var syncTarget = _targetClock / _syncsPerSecond; // TODO possibly inaccurate if there is a remainder!
var phaseTime = 1000 / _syncsPerSecond;
try
{
Step();
clockCounter += (int)(ElapsedCycles - lastElapsed);
if (clockCounter >= syncTarget)
{
var elapsedTime = _stopwatch.ElapsedMilliseconds;
if (elapsedTime <= phaseTime)
{
Thread.Sleep((int)(phaseTime - elapsedTime));
}
else
{
_logger.WriteLine("Slowdown!");
}
clockCounter -= syncTarget;
_stopwatch.Restart();
}
}
catch (Exception e)
{
var instr = Disassembler.DisassembleInstruction(InstructionLookahead.Passive(State));
Console.WriteLine($"Exception at instruction: 0x{State.Registers.PC.Value:X2} {instr.Text}");
_logger.WriteLine(e.ToString());
}
}
//State.Registers.PC.Value = 0; // reset
while (!Running)
{
Thread.Sleep(1000);
}
goto runLoop;
}
