The following is a list of the registers on entry to the IGBDCSX1 and IGBDCSX2 exit routines.

Register

Contents

1

Address of a 4-byte field containing the address of the parameter list

0, 2-12

Not applicable

13

Address of an 18-word save area

14

Return address to DCS

15

Address of the entry point to IGBDCSX1 or IGBDCSX2