All mainline exits can pass back a return code in register
15. CSFEXIT1, CSFEXIT2, and CSFEXIT3 support these decimal return
codes:
- Return Code
- Description
- 0
- Proceed with initialization.
- 16
- End ICSF.
CSFEXIT4 supports these decimal return codes:
- Return Code
- Description
- 0
- Proceed with the STOP command.
- 4
- Do not allow the STOP command to proceed.
CSFEXIT5 supports these decimal return codes:
- Return Code
- Description
- 0
- Continue processing.
- 4
- End ICSF.
Any return codes other than those listed cause ICSF to end abnormally.