On 11 Sep 2006 09:01:16 -0700, in bit.listserv.ibm-main you wrote: >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. > I remember the 301, 3301 and 501. What was the 601?
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