UPCASE

 Function
  Set the force uppercase flag in an INPUTSTR or PROMPTSTR statement.

 Value
  8 = 1000b = 10o = 8h

 Remarks
  The INPUTSTR and PROMPTSTR statements have the ability to force all
  input characters to uppercase.  This is useful in getting case
  insensitive replies from the user.  If this flag is used, you need not
  pass lowercase valid characters as they will be automatically converted
  at runtime.  If this flag is not used and you need to input alphabetic
  characters, you should pass both lowercase and uppercase characters in
  the valid character string.

 Example

  STRING s
  WHILE (s <> "QUIT") DO
   INPUTSTR "Text",s,@X0E,60,"ABCDEFGHIJKLMNOPQRSTUVWXYZ",UPCASE
   PRINTLN s
  ENDWHILE