On Wed, 3 Apr 2019 18:17:46 -0500, Paul Edwards wrote: >I was thinking that z/Arch and z/OS could >be updated to support AMODE 32.
Not again. You brought up something similar last year. It was a ridiculous idea then and it still is. You were told then that your proposal would be rejected, and this one is a far bigger one. It amounts to a very small enhancement to an old architecture that has already been enhanced far beyond what you are asking for. You are asking for a significant change to the architecture that provides minimal, if any, benefit. It would complicate the architecture, apparently only to the benefit of your ego. >The BSM instruction can use bit x'4000 0000' >to get/set AM32. No, it can't, for compatibility reasons. >This introduces a 1 GiB >restriction where the module should not >be loaded above if it needs to switch >AMODEs to call READ etc. Yeah. You want to double the available storage, yet halve the storage available to programs. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
