Register contents when Exit 0 gets control

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

Register

Contents

0

A code indicating where the initialization options were specified

1

Address of a 2-word parameter list with the following structure:

2-10

Not applicable

11

Address of $HCT

12

Not applicable

13

Address of the initialization $PCE – the PCE work area for this $PCE is the common initialization routine work area, mapped by the $CIRWORK macro.

14

Return address

15

Entry address