Why not use one of the 64 bit load instructions and then "copy" the high "word" of the register to the second register, perhaps clearing the high word afterwords?
-- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology This message (including any attachments) contains confidential information intended for a specific individual and purpose, and its content is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this transmission, or taking any action based on it, is strictly prohibited. > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of Binyamin Dissen > Sent: Thursday, July 27, 2006 10:12 AM > To: [email protected] > Subject: Doing a LM of two words on a double word bounday - > is it serialized? > > > I would like to guarantee a concurrent load of two words on a > double word > boundary. > > Will LM serialize the doubleword? > > Or must I something hokey like a CDS which appears to do a > concurrent load if > the result is not equal. > > Doing a L followed a PLO/CompareLoad seems the absolute worst choice. > > -- > Binyamin Dissen <[EMAIL PROTECTED]> > http://www.dissensoftware.com > > Director, Dissen Software, Bar & Grill - Israel > > > Should you use the mailblocks package and expect a response from me, > you should preauthorize the dissensoftware.com domain. > > I very rarely bother responding to challenge/response systems, > especially those from irresponsible companies. > > ---------------------------------------------------------------------- > 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

