Register contents when Exit 11 passes control back to JES2

Before returning to JES2, the contents of the registers must be:

A return code of:

0: Tells JES2 that if any additional exit routines are associated with this exit, execute the next consecutive exit routine. If there are no additional exit routines associated with this exit point, this return code tells JES2 to set the spool partitioning mask as indicated by the FENCE parameter on the SPOOLDEF initialization statement setting and to reissue the $TRACK request.
4: Tells JES2 that even if additional exit routines are associated with this exit, ignore them; instead, set the spool partitioning mask as indicated by the FENCE parameter on the SPOOLDEF initialization statement setting and reissue the $TRACK request.
8: Tells JES2 that an updated version of the spool partitioning mask—with at least one additional bit turned on—has been passed to JES2 in the spool mask work area and will now determine later spool allocation. It also tells JES2 to reissue the $TRACK request.