Output Register Information

When control returns to the caller, the GPRs contain:
Register
Contents
0
Reason code
1
Used as work register by the system
2-13
Unchanged
14
Used as work register by the system
15
Return code
When control returns to the caller, the ARs contain:
Register
Contents
0-1
Used as work registers by the system
2-13
Unchanged
14-15
Used as work registers by the system