In
<caajsdjhwaswhnq89sqoebd5bny1eccsiqrizzyyfg1rgkz3...@mail.gmail.com>,
on 03/30/2015
   at 06:54 AM, John McKown <john.archie.mck...@gmail.com> said:

>To me, one of the biggest pluses is the "hardware memory key". 

Better than nothing, and available before S/360 supported virtual
memory, but inferior to other mechanisms. I'll take segment/ring-based
protection any day. Even block relocation is arguably better.
 
-- 
     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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