On Wed, 20 Oct 2010 14:57:08 +0000, Bob Shannon <bshan...@rocketsoftware.com> wrote:
>> For example, can z/OS 1.6 run on hardware without it? > >Extended immediate instructions were introduced on Freeway (i.e., z800/z900) processors. Operating systems prior to 1.6 could run on 9672 processors. 1.6 requires a Freeway processor. 1.6 went out of service 9/30/2007. > > >Bob Shannon >Rocket Software Extended Immediate Facility (not the same as instructions) came in with z9-109 (now z9BC / z9EC) as mentioned in a previous post. Also as mentioned, there is no architectural level set with z/OS as with z/VM, so the answer to the question is: Yes, z/OS 1.6 can run on hardware without it. There are some compilers that take advantage of the facility when the correct options are set, but don't by default for downward compatibility. Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS mailto:mzel...@flash.net Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html Systems Programming expert at http://expertanswercenter.techtarget.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
