In <[EMAIL PROTECTED]>, on 09/10/2006
   at 09:09 AM, Clark F Morris <[EMAIL PROTECTED]> said:

>What models and was it other than just data and instruction?

Burroughs: B6500, B6700, B7500, B7800, etc. The tag bits constrained
how a word was interpreted for both data and instructions.

RCA: CDP, 601. The tag bits were under programmer control and had no
effect on the interpretation of words, other than triggering an
interrupt and being testable.
 
-- 
     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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