Martin, Both R3 and R15 are valid base registers at the point where the two LAY instructions are issued.
Put an EJECT prior to the two LAY instructions and take a look at the USING map at the top of the page. An ASMA303W message, indicating multiple address resolutions, is NOT issued when a USING of the form USING (from,thru),register-list is issued. John P. Baker -----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Martin Trübner Sent: Thursday, December 30, 2010 10:36 AM To: [email protected] Subject: Re: A bug or a feature? John B, >> Both LAY instructions address the same instruction, but use different offsets, as one would expect. NO One should use the offset off of the only valid/declared base-register at that point which is 3 and the other one should use what I gave explicit (which is the same). -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de
