Compiler interface load routine

IRXLOAD will pass control to the compiler interface load routine in either of two cases:

After the REXX language processor reads a compiled REXX exec into storage.
When the REXX language processor makes a request to free the in-storage control block that was created by an earlier request to the compiler interface load routine.

Note: This section discusses the interaction between the compiler interface load routine and the IBM-supplied IRXLOAD routine.

For compiled execs, IRXLOAD will call the compiler interface load routine, if installed, before IRXLOAD builds the in-storage control block and after IRXLOAD has obtained all information required by the compiler interface load routine.

One of the inputs (parameter 5) to the compiler interface load routine is a group of blocks containing the compiled REXX exec. The compiler interface load routine must create and initialize an in-storage control block from the group of blocks, preferably above 16 MB in virtual storage. For more information about the in-storage control block, see .