This reference topic provides the information you need to write exit routines for the IBM-defined exits.

The exits are described in the order of their identification numbers, the ID numbers assigned to them on their respective $EXIT macros. Each exit description begins with a discussion of its recommended use, followed by a breakdown of environmental considerations, linkage conventions, and other programming considerations specific to the particular exit being described. (Note: For convenience, except where single or multiple exit routines are mentioned specifically, the following descriptions imply either one or more exit routines by the inclusive term “exit routine.” For example, “your exit routine may replace the standard routine” should be understood to mean “your exit routine or exit routines may replace the standard routine.”) Table 1 summarizes for each exit the CSECT in JES2 from which your exit routine can get control.