CALL                     Invoke Procedure or Assembly Subroutine

 CALL procname [(parmlist)]

    Transfers control to a subprogram or assembly language subroutine.

    procname    Specifies a procedure or assembly subroutine defined by a
                SUB or SUB INLINE statement elsewhere in the program.

    parmlist    Specifies one or more parameters to be passed to the
                procedure or assembly subroutine. Parameters must be
                separated by commas. To pass an entire array as a
                parameter, follow the array name with empty parentheses.

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      Notes:    For procedures (but not for assembly subroutines), Turbo
                Basic returns a compile-time error if the number and type
                of parameters passed do not match the formal parameter
                list given in the SUB statement.

                Parameters given as variables are normally passed by
                reference and may be changed by the procedure. To pass a
                variable by value instead, enclose it in parentheses.
                Entire arrays are always passed by reference, while
                expressions and constants are passed by value.