Ed One small correction - the long displacement instructions were retrofitted to the z900 machines so they are available on all z/Architecture machines. The caveat is that on the z900/z800 machines, the performance of these instructions is SLOW.
Regards John R Dravnieks HLASM Project leader, Australia Development Laboratory (ADL), Perth Internet: [EMAIL PROTECTED] Phone: +61 8 926 18473 (xtn 18473; Tie-Line: 701 8473) Fax: +61 8 926 18453 (xtn 18453; Tie-Line: 701 8453) > ----- Message from Edward Jaffe <[EMAIL PROTECTED]> on > Fri, 6 Oct 2006 14:26:55 -0700 ----- > > Subject: > > Re: MVCLE Use > > Art Celestini wrote: > [snip] > > Since I write a lot of code for commercial MVS products, I often run > > across circumstances where one of the "newer" instructions would be > > useful. But, since these products are widely used, I need to be > > certain that the code will run on all of the CPUs owned by the > > customers of those products. > > Art, > > Unless you want to establish some really complex hardware requirements > for your code, there are only four possible states to worry about: > > 1) Prior to OS/390 V2R10 > 2) Exactly OS/390 V2R10 http://www.ibm.com/servers/s390/os390/plug.html > 3) z/OS V1R1 through z/OS V1R5 > http://www.ibm.com/servers/s390/os390/plug1.html > 4) z/OS V1R6 and higher (base z/Architecture without any of the fancy > stuff added after z900 aka Freeway) > > If you want to use long displacements (added in z990) or any of the fun > things added in System z9 (FLOGR), you'll need to wait for another level > set. > > -- > Edward E Jaffe > Phoenix Software International, Inc > 5200 W Century Blvd, Suite 800 > Los Angeles, CA 90045 > 310-338-0400 x318 > [EMAIL PROTECTED] > http://www.phoenixsoftware.com/ > > ---------------------------------------------------------------------- > 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
