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From: mwm@ucbvax.ARPA (Mike (I'll be mellow when I'm dead) Meyer)
Newsgroups: net.arch
Subject: Re: RISC/CISC - IBM mainframes
Message-ID: <8213@ucbvax.ARPA>
Date: Sat, 15-Jun-85 21:00:24 EDT
Article-I.D.: ucbvax.8213
Posted: Sat Jun 15 21:00:24 1985
Date-Received: Sun, 16-Jun-85 03:21:45 EDT
References: <1452@ecsvax.UUCP> <1062@peora.UUCP>
Reply-To: mwm@ucbvax.UUCP (Mike (I'll be mellow when I'm dead) Meyer)
Organization: Missionaria Phonibalonica
Lines: 19

In article <1062@peora.UUCP> jer@peora.UUCP (J. Eric Roskos) writes:
>A reasonable approach to producing CISC machines, then, would be to have the
>compiler writers design the instruction set; and to have the instruction set
>be changeable for different languages.

Burroughs will be glad to sell you a machine that implements that idea. Just
goes to show (once again) that quality and market share are unrelated.

>This could be extended by having the
>instruction set be further changeable by the individual user, or automatically
>by a program that analyzes instruction usage and moves frequently-used
>instructions into microcode (vertical migration).

Like the BBN C/70 box? Once again, ...

	<mike
-- 
After 5 years, a quote worthy of Netnews (and it works as disclaimer!):
"Truth is variable."