In <51ef18aa.2060...@gmail.com>, on 07/24/2013
   at 07:58 AM, David Crayford <dcrayf...@gmail.com> said:

>There's a RLLG instruction to rotate the bits in a 64-bit integer.

It doesn't *reverse* the bits, which is what the OP needs.

-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     Atid/2        <http://patriot.net/~shmuel>
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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