Following are the registers on entry to the IGGPRE00 and IGGPOST0 exit routines.

Register

Contents

1

Address of the pre- or postprocessing exit parameter list

0, 2-12

Not applicable

13

Address of an 18-word save area

14

Return address to DADSM

15

Address of the entry point to IGGPRE00 or IGGPOST0