If an asterisk (*) is coded, JES2 uses the CSECT in effect on a previous JES2 patch statement. Table 1 contain a list of the possible patch names which can be coded and area to which these names refer. If the CSECT is listed in Table 1, you can specify the last four characters of the CSECT name.

If an installation exit CSECT is referenced, the JES2 patching facility requires the entire module name, except for the reserved names HASPXJ00-HASPXJ31. If you do not linkedit the installation exit routines HASPXJ00 - HASPXJ31 with the HASJES20 load module, you must specify the full 8-character CSECT name.

Furthermore, do not name an exit with the same three or four characters (xxxx) as used for a JES2 module. For example, an installation-defined exit named CKPT or TABS (that is, HASPCKPT or HASPTABS, with the HASP characters removed) would modify the IBM-supplied HASPCKPT or HASPTABS module.

While this field is optional on the AMASPZAP control statement, it is required on the AMASPZAP patch statement. For further information on AMASPZAP, see REP - Replacing Code Through the JES2 Patching Facility and VERify - Verifying Code Through the JES2 Patching Facility