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From: iwm@icdoc.UUCP (Ian Moor)
Newsgroups: net.arch
Subject: Re: Re: RISC/CISC - IBM mainframes
Message-ID: <220@ivax.icdoc.UUCP>
Date: Wed, 19-Jun-85 03:10:17 EDT
Article-I.D.: ivax.220
Posted: Wed Jun 19 03:10:17 1985
Date-Received: Sun, 23-Jun-85 00:40:23 EDT
References: <7302@watdaisy.UUCP> <33500001@siemens.UUCP>
Reply-To: iwm@icdoc.UUCP (Ian Moor)
Organization: Dept. of Computing, Imperial College, London, UK.
Lines: 23
Xpath: icdoc ivax

In article <33500001@siemens.UUCP> fwb@siemens.UUCP writes:

> .... different instruction sets for different compilers/languages
>Didn't Burroughs do something like this with one of its computers?
>I think it was the B1700.
>

Yes that was it. I don't know if you could run different sets concurrently.
We have just bought an Orion from High Level Hardware (Oxford UK) which
lets different processes use different instruction sets (part of the process
context is which area of microcode store to use) and runs BSD 4.1 on
an instruction set optimised for C. It fits into a desk and comes with 
microprogramming tools running under Unix, looks real fun, and is
likely to outsell most other workstations over here. 


-- 
Ian W Moor
                                   The squire on the hippopotamus is equal
 Department of Computing           to the sons of the other two squires.
 180 Queensgate 
 London SW7 Uk.