And let's not forget to mention why these microcode assists were added to MVS in the first place -- to make a version of MVS (MVS/SE, MVS/SP, etc.) that would not run on "clones" like Amdahl.
Now that there are effectively no more "clones" IBM can simply remove them? --- On Fri, 6/27/08, Peter Relson <[EMAIL PROTECTED]> wrote: > From: Peter Relson <[EMAIL PROTECTED]> > Subject: Re: Op codes removed from z/10 > To: [email protected] > Date: Friday, June 27, 2008, 5:25 AM > >It could be as simple as "the current > >systems are so fast that maintaining the microcode and > the microcode > >space is no longer cost effective." > > Right on target. > > These were never instructions intended for use other than > by the operating > system, and the operating system no longer needed them (due > to the speed > situation) and (for example) it was not cost-effective to > enhance them for > z/Architecture. > > Peter Relson > z/OS Core Technology Design > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access > instructions, > send email to [EMAIL PROTECTED] with the message: GET > IBM-MAIN INFO > Search the archives at > http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
