In <[email protected]>, on 11/29/2010
   at 11:44 AM, J R <[email protected]> said:

>He also omitted Exclusive Or (XR 15,15),

The quoted text is in your reply:

  There were three possible instructions that could be used to
  zero R15: ``Clear Register R15'', ``Subtract Register R15,R15'',
  and ``Exclusive Or Register R15,R15''. 

His list is missing SLR, but it include SR and XR, along with the
imaginary Clear.
 
-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     ISO position; see <http://patriot.net/~shmuel/resume/brief.html> 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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