static void Main(string[] args)
{
if (args.Length != 1 || !args[0].EndsWith(".vm"))
{
Console.WriteLine("Usage: VMTranslator <file>.vm");
return;
}
string inputFile = args[0];
string outputFile = Path.ChangeExtension(inputFile, "hack");
var parser = new Parser(new FileStream(inputFile, FileMode.Open));
var writer = new CodeWriter(new FileStream(outputFile, FileMode.Create));
}