public Emulator(EmulatorConfig config)
{
Memory = new Memory();
Display = new ConsoleDisplayDevice();
Sound = new WindowsBeepSoundDevice();
Input = new WindowsKeyboardInputDevice();
Cpu = new CpuCore(Memory, Display, Sound, Input, new InstructionInterpreter());
}
private static void Run(CommandLineApplication command)
{
command.Description = "Runs the emulator using the given ROM files.";
command.HelpOption("-?|-h|--help");
var romPathArg = command.Argument("[ROM path]", "The path to a directory containing the ROM set to load.");
var romsetOption = command.Option("-rs|--rom-set", "The name of an alternative ROM set and/or PCB configuration to use; pacman or mspacman; defaults to pacman", CommandOptionType.SingleValue);
var dipSwitchesOption = command.Option("-dw|--dip-switches", "The path to a JSON file containing DIP switch settings; defaults to dip-switches.json in CWD.", CommandOptionType.SingleValue);
var loadStateOption = command.Option("-l|--load-state", "Loads an emulator save state from the given path.", CommandOptionType.SingleValue);
var skipChecksumsOption = command.Option("-sc|--skip-checksums", "Allow running a ROM with invalid checksums.", CommandOptionType.NoValue);
var writableRomOption = command.Option("-wr|--writable-rom", "Allow memory writes to the ROM address space.", CommandOptionType.NoValue);
var debugOption = command.Option("-d|--debug", "Run in debug mode; enables internal statistics and logs useful when debugging.", CommandOptionType.NoValue);
var breakOption = command.Option("-b|--break", "Used with debug, will break at the given address and allow single stepping opcode execution (e.g. --break 0x0248)", CommandOptionType.MultipleValue);
var reverseStepOption = command.Option("-rvs|--reverse-step", "Used with debug, allows for single stepping in reverse to rewind opcode execution.", CommandOptionType.NoValue);
var annotationsPathOption = command.Option("-a|--annotations", "Used with debug, a path to a text file containing memory address annotations for interactive debugging (line format: 0x1234 .... ; Annotation)", CommandOptionType.SingleValue);
command.OnExecute(() =>
{
var config = new EmulatorConfig();
if (String.IsNullOrWhiteSpace(romPathArg.Value))
{
throw new Exception("A directory containing Pac-Man arcade hardware compatible ROM files is required.");
}
if (!Directory.Exists(romPathArg.Value))
{
throw new Exception($"Could not locate a directory at path {romPathArg.Value}");
}
config.RomPath = romPathArg.Value;
config.RomSet = ROMSet.PacMan;
if (romsetOption.HasValue())
{
if (romsetOption.Value() == "pacman")
{
config.RomSet = ROMSet.PacMan;
}
else if (romsetOption.Value() == "mspacman")
{
config.RomSet = ROMSet.MsPacMan;
}
else
{
throw new ArgumentException($"Unexpected ROM set: {romsetOption.Value()}");
}
}
config.DipSwitchesConfigPath = dipSwitchesOption.HasValue() ? dipSwitchesOption.Value() : null;
config.LoadStateFilePath = loadStateOption.HasValue() ? loadStateOption.Value() : null;
config.SkipChecksums = skipChecksumsOption.HasValue();
config.WritableRom = writableRomOption.HasValue();
config.Debug = debugOption.HasValue();
if (config.Debug)
{
if (breakOption.HasValue())
{
var addresses = new List <UInt16>();
foreach (var addressString in breakOption.Values)
{
UInt16 address = Convert.ToUInt16(addressString, 16);
addresses.Add(address);
}
config.Breakpoints = addresses;
}
config.ReverseStep = reverseStepOption.HasValue();
config.AnnotationsFilePath = annotationsPathOption.HasValue() ? annotationsPathOption.Value() : null;
}
Emulator.Start(config);
return(0);
});
}
