Try looking here http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/HCSE5B20/1.2.1.1?SHELF=hcsh2a91&DT=20070424110349&CASE=
Regards, Richard Schuh ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Gentry, Stephen Sent: Wednesday, October 14, 2009 1:42 PM To: IBMVM@LISTSERV.UARK.EDU Subject: DIAG 0 Greetings. Could someone provide me with the layout of the 40 bytes returned when a DIAG 0 is issued? Or, IOW, what is returned and how is it formatted? I've google'd and look through some manuals but haven't come up with anything. Thanks, Steve