Register contents when Exit 21 gets control

The contents of the registers on entry to this exit are:

Register

Contents

0

Zero (0)

1

SMF buffer address.

This buffer will contain either an SMF record or a job management record (JMR) based on the value of field SMFTYPE.

2-9

N/A

10

Address of the JCT or 0

11

Address of the HCT

12

N/A

13

Address of the caller's PCE

14

Return address

15

Entry address