In <[EMAIL PROTECTED]>, on 09/11/2006
at 02:36 PM, "Patrick O'Keefe" <[EMAIL PROTECTED]> said:
>The B5500 had similar structure and set of capabilities.
There were major changes in architecture from the B5x00 to the
B6x0/B7x0 line.
>It also had another processig mode - a string processing mode -
>where storage WAS directly accessable.
One of the security problems that the B6500 fixed.
>That suggests that the underlying architecture was quite different
>than what was presented to the user.
I'm not sure what you mean by the underlying architecture. What
Burroughs documented was the format of the various control words, data
words and instruction syllables, along with the register set. Stream
mode was part of that.
>We never learned aythig about string-mode processing (which was most
>likely not accessable from ALGOL)
It was accessible from Extended ALGOL.
--
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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