1 SUB
 The SUB  statement  marks  the  beginning  of  a  BASIC  subprogram  and
 specifies its parameters by number and data type.

 Example

 SUB SUB3 (BYTE Age, DOUBLE Wage(20,20), STRING Emp_name)
      .
      .
      .
 END SUB

2 Syntax

     SUB sub-name [ pass-mech ] [ ( [ formal-parm ],... ) ]
         [ statement ]...
     { END SUB }
     { SUBEND  }

       pass-mech:    { BY DESC  }
                     { BY REF   }
                     { BY VALUE }

                               {unsubs-var-name            }
       formal-parm:
       [data-type]{array-name([int-const],...)}[=int-const][pass-mech]
                               {          [ ,       ]...   }