>What is the recommended practice for what >registers to specify? Surely there is no "recommended" practice. You use whatever you feel like that meets your needs. If something is not allowed, that is what the PoOp would explain. And possibly would also explain things that might not work under some circumstances.
Answers to your next question "What do people do generally?" could shed light on common usage. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
