There is something that I can't seem to coperhand. Why would you limit numbers to 64 bit. Isn't this a waste of memory? I meand how often do you use nimbers greatear than 32 bit Integer in your games? Also won't using 64 bit integers considerably slow down all mathematical calculations when programs would be running on 32 bit operating systems.
Also wich type of string would you use (Ansi, UTF-8, Unicode)? Having only ansi support will make your rograming language les interesting for any programer coming from Easten Europe, Asia, or any other country whic uses some aditional characters wich are not present in Ansi charset.