Bob Shannon wrote:
I was once told that one cannot IPL off an ICF (or maybe it was an IFL) because NIP issues an instruction that is not supported on the specialty engine. If that's true, then NIP is a special case.
As I understand it, ONE useless IPL-time instruction program checks on an IFL (and possibly other specialty engines). This conveniently prevents z/OS from IPLing on a specialty engine.
I know one ISV that wanted their software to come up stand-alone on an IFL. They had copied their IPL procedure from MVS code back in the old days before OCO. They discovered which ONE instruction caused them grief and they simply removed it. Now, everything works perfectly.
-- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 edja...@phoenixsoftware.com http://www.phoenixsoftware.com/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
