z/OS DFSORT Application Programming Guide
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Using your own user exit routines
z/OS DFSORT Application Programming Guide
SC23-6878-00
User exit routine overview
DFSORT program phases
Functions of routines at user exits
32-bit and 64-bit parameter lists
Addressing and residence modes for user exits
How user exit routines affect DFSORT performance
Summary of rules for user exit routines
Assembler user exit routines (input phase user exits)
Assembler user exit routines (output phase user exits)
Sample E15 and E35 routines using the 64-bit parameter lists
Sample routines written in assembler using the 32-bit parameter lists
COBOL user exit routines
COBOL user exit routines (input phase user exit)
COBOL user exit routines (output phase user exit)
Sample routines written in COBOL
E15/E35 return codes and EXITCK
Copyright IBM Corporation 1990, 2014