static void RunInterpreter(string romName)
{
ConsoleBuffer console = new ConsoleBuffer();
VmemVisualizer view = new VmemVisualizer();
Chip8VM inr = new Chip8Sharp.Chip8InterpreterDBG();
var ROM = File.ReadAllBytes(romName);
inr.LoadBinary(ROM);
DisassemblyProvider disasm = new DisassemblyProvider(ROM, inr.State);
//inr.AddBreakPoint(0x268);
byte[] OldRegisters = new byte[0x10];
UInt16 OldI = 0;
while (true)
{
console.Clear();
int startOffset = inr.State.PC - Console.WindowHeight;
if (startOffset % 2 != 0)
{
startOffset += 1;
}
for (int i = 0; i < Console.WindowHeight - 4; i++)
{
UInt16 offset = (UInt16)(startOffset + i * 2);
if (inr.IsBreakpoint(offset))
{
console.Write(offset.ToString("X4") + " | ", ConsoleColor.Red);
}
else
{
console.Write(offset.ToString("X4") + " | ", ConsoleColor.Gray);
}
if (disasm.IsLabel(offset))
{
console.Write("off_" + offset.ToString("X4") + ": ", ConsoleColor.Yellow);
}
var text = disasm.DisassembleLine(offset);
if (offset == inr.State.PC)
{
console.Write(" > ", ConsoleColor.Green);
console.WriteLine(text, ConsoleColor.Green);
}
else if (text.Contains("off_"))
{
var off = text.IndexOf("off_");
console.Write(text.Substring(0, off));
console.WriteLine(text.Substring(off), ConsoleColor.Yellow);
}
else
{
console.WriteLine(text);
}
}
for (int i = 0; i < 16; i++)
{
console.Write($"V{i.ToString("X")}: {inr.State.Register((byte)i).ToString("X2")} | ", inr.State.Registers.AsSpan()[i] != OldRegisters[i] ? ConsoleColor.Red : ConsoleColor.White);
}
console.Write($"I: {inr.State.I.ToString("X4")} |", inr.State.I != OldI ? ConsoleColor.Red : ConsoleColor.White);
console.Write($"PC: {inr.State.PC.ToString("X4")} |");
console.Write($"SP: {inr.State.SP.ToString("X4")} |");
console.Write($"DT: {inr.State.DT.ToString("X2")} |");
console.Write($"ST: {inr.State.ST.ToString("X2")} |");
console.WriteLine("");
OldRegisters = inr.State.Registers.AsSpan().ToArray();
OldI = inr.State.I;
console.Write("Space: ", ConsoleColor.Cyan);
console.Write("step ");
console.Write("Q: ", ConsoleColor.Cyan);
console.Write("run ");
console.Write("Z: ", ConsoleColor.Cyan);
console.Write("run 5 ");
console.Write("X: ", ConsoleColor.Cyan);
console.Write("run 10 ");
console.Write("C: ", ConsoleColor.Cyan);
console.Write("run 15 ");
console.Write("V: ", ConsoleColor.Cyan);
console.Write("run 30 ");
console.Write("N: ", ConsoleColor.Cyan);
console.Write("run to jump ");
console.Write("B: ", ConsoleColor.Cyan);
console.Write("toggle BP ");
console.Write("P: ", ConsoleColor.Cyan);
console.Write("Break in VS ");
console.Write("M: ", ConsoleColor.Cyan);
console.Write("Disasm RAM ", disasm.DisassembleRam ? ConsoleColor.Green : ConsoleColor.White);
console.Display();
if (inr.CheckVMEMUpdate())
{
view.Draw(inr);
}
ReadAgain:
switch (Console.ReadKey(true).Key)
{
case ConsoleKey.P:
Debugger.Break();
inr.StepInto();
break;
case ConsoleKey.Spacebar:
inr.StepInto();
break;
case ConsoleKey.Q:
inr.Run();
break;
case ConsoleKey.Z:
inr.Run(5);
break;
case ConsoleKey.X:
inr.Run(10);
break;
case ConsoleKey.C:
inr.Run(15);
break;
case ConsoleKey.V:
inr.Run(30);
break;
case ConsoleKey.N:
inr.BreakOnJump = true;
inr.Run();
break;
case ConsoleKey.M:
disasm.DisassembleRam = !disasm.DisassembleRam;
continue;
case ConsoleKey.B:
var bp = ReadBreakPoint();
if (inr.IsBreakpoint(bp))
{
inr.RemovBreakPoint(bp);
}
else
{
inr.AddBreakPoint(bp);
}
console.UnbufferedClear();
continue;
default:
goto ReadAgain;
}
}
}