Vdu
    ------------------
    Basic keyword
     
     
    Use: List of values to be sent to vdu.
     
    Syntax is: Vdu n%
     
    Where: Vdu n% sends character n% to vdu
    If , or nothing follows an expression it's sent as an eight bit number.
    If ; follows number it's sent as a sixteen bit number.
    | sends 8 bytes of zeroes to vdu.