>>was changed to instead place x'01' in the low byte >In the RETURN macro, I see OI, not MVI (but I didn't search for the MVI).
I mis-wrote; you're right. It should have been "place x'01' in the low bit" Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- 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