Specifying user exits

You use the EXIT option to specify the name of one or more user exits to load, and optionally pass to the exit a character string up to 64 characters long that is processed during assembly initialization. You can use the EXITCTL assembler instruction to pass data from the assembler source program to the user exit during the assembly. See EXITCTLn.

The Diagnostic Cross Reference and Assembler Summary section of the assembler listing shows the statistics for records processed by the user exits during the assembly. See EXIT for the syntax of the EXIT assembler option.

These tables lists the exit type, the EXIT suboption, the default data set ddname (z/OS and CMS), or filename (z/VSE), that the exit corresponds to, and a Page number reference to the section that describes how the assembler processes the exit:

Table 1. z/OS and CMS exit types
Exit Type	Exit Suboption	ddname	Topic Number
SOURCE	INEXIT	SYSIN	SOURCE exit processing
LIBRARY	LIBEXIT	SYSLIB	LIBRARY exit processing
LISTING	PRTEXIT	SYSPRINT	LISTING exit processing
PUNCH	OBJEXIT	SYSPUNCH	OBJECT (z/OS and CMS) and PUNCH exit processing
OBJECT	OBJEXIT	SYSLIN	OBJECT (z/OS and CMS) and PUNCH exit processing
ADATA	ADEXIT	SYSADATA	ADATA exit processing
TERM	TRMEXIT	SYSTERM	TERM exit processing

Table 2. z/VSE exit types
Exit Type	Exit Suboption	filename	Topic Number
SOURCE	INEXIT	IJSYSIN	SOURCE exit processing
LIBRARY	LIBEXIT	Library sublibraries	LIBRARY exit processing
LISTING	PRTEXIT	IJSYSLS	LISTING exit processing
PUNCH	OBJEXIT	IJSYSPH	OBJECT (z/OS and CMS) and PUNCH exit processing
ADATA	ADEXIT	SYSADAT	ADATA exit processing
TERM	TRMEXIT	SYSLOG	TERM exit processing