E503    SVC Assist
E504    Obtain Local Lock
E505    Release Local Lock
E506    Obtain CMS Lock
E507    Release CMS Lock

These instructions comprised a part of the MVS Extended Facility, which
provided performance improvements back in the days of MVS/XA and MVS/SP.

John P. Baker

-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[EMAIL PROTECTED]
On Behalf Of Bielskie, Stephen
Sent: Wednesday, June 25, 2008 9:54 AM
To: [EMAIL PROTECTED]
Subject: Op codes removed from z/10

Does anyone know what these opcodes are?  They are no longer supported
on the z/10, but I can't find them in the Reference Summary
        E503
        E504
        E505
        E506
        E507 


Cross-posted to IBM-Main

Stephen Bielskie
Assistant Vice President
IT -  z/OS Base Products - Princeton - KIUT57
IT -  Mainframe Hardware - Princeton - KIUT54

CREDIT  SUISSE  

Princeton, NJ  
Telephone : (609) 243-0711 
Email :[EMAIL PROTECTED]

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