PL/I Dynamically calling Fortran

For PL/I to dynamically call a Fortran routine, the PL/I routine must declare the Fortran entry point, such as in the following example:

DCL FORTEP ENTRY OPTION(FORTRAN);

PL/I could then dynamically call the Fortran routine with the following code:

FETCH FORTEP;
CALL FORTEP (...);

The dynamically called routine, whether Fortran or PL/I, can statically call another Fortran or PL/I routine. However, the dynamically called Fortran routine cannot contain a PL/I routine in the dynamically loaded module unless there was also a PL/I routine in a previously executed load module.

The dynamically called routine, whether Fortran or PL/I, can dynamically call another Fortran or PL/I routine. However, only two of the dynamically loaded modules can contain PL/I routines (including the load module dynamically loaded by the operating system or subsystem).

You cannot use the PL/I RELEASE statement to release a Fortran program.