On Tue, 15 May 2018 10:50:49 -0500, Paul Edwards wrote: >There are multiple ways of guaranteeing 0. The >best is IBM guaranteeing it on entry to a program, >as another RFE. In the single test that I requested, >the high bits seem to be 0 already. I just want to >formalize that.
IBM cannot guarantee that. A basic principle in MVS is that any program can be called by another program. You don't know how a program that calls you might use the 64-bit registers. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
