According to z/VM 4.3 CP Planning and Administration under the MACHINE statement of the user directory:
XA designates an XA virtual machine, which is functionally equivalent to an ESA virtual machine. On Thu, 2003-10-02 at 07:34, Daniel Jarboe wrote: > We are running linux images with 31 bit addressing under z/VM. The > machine arch for our linux images has been defined by our VM sysprog as > XA. Is there any disadvantage/advantage of this vs. ESA or some other > architecture as far as the linux images are concerned? My initial > thought was that the compiler/assembler may choose different > instructions for increased effeciency depending on the architecture it's > building for, but I don't know if there's any truth to that thought or > if there'd even be any differences. Is there any reason to change the > architecture, and if so, could the change have any adverse impact? > > Thanks, > ~ Daniel > > > > > > > ----------------------------------------------------------------------- > > This message is the property of Time Inc. or its affiliates. It may be > legally privileged and/or confidential and is intended only for the use > of the addressee(s). No addressee should forward, print, copy, or > otherwise reproduce this message in any manner that would allow it to be > viewed by any individual not originally listed as a recipient. If the > reader of this message is not the intended recipient, you are hereby > notified that any unauthorized disclosure, dissemination, distribution, > copying or the taking of any action in reliance on the information > herein is strictly prohibited. If you have received this communication > in error, please immediately notify the sender and delete this message. > Thank you. -- Rich Smrcina Sr. Systems Engineer Sytek Services - A Division of DSG Milwaukee, WI rsmrcina at wi.rr.com rsmrcina at dsgroup.com Catch the WAVV! Stay for requirements and the free-for-all. Update your zSeries skills in 4 days for a very reasonable price. WAVV 2004 in Chattanooga, TN April 30-May 4, 2004 For details see http://www.wavv.org
