segments and Unix

Mike Wexler mike at peregrine.UUCP
Wed Nov 19 20:27:26 AEST 1986


In article <13802 at amdcad.UUCP> phil at amdcad.UUCP (Phil Ngai) writes:
>Suppose every data structure were in its own segment. And of course,
>that every segment were big enough to hold any data structure you
>needed so that you didn't need to manage multiple segments for one
>data structure. 
> Phil Ngai +1 408 749 5720
Intels IAPX 432 processor incorporated this idea in hardware.  It was
slow.  This is not necessarily because of the basic idea.  It may have
just been a bad implementation.  It would be worth while to get the databook
for the 432 it is quite interesting.  The 432 went a little bit further.
It basically "knows" the type of every data structure and enforces certain
rules as to what can be done with things of each type.


-- 
Mike Wexler
(trwrb|scgvaxd)!felix!peregrine!mike
(714)855-3923



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