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From: jgk@osc.COM (Joe Keane)
Newsgroups: comp.arch
Subject: Re: RISC reaching its limits?!?
Summary: PDP-11s are simple.
Message-ID: <4491@osc.COM>
Date: 9 Feb 91 09:33:04 GMT
References: <1991Jan28.184325.15815@ico.isc.com> <1991Jan28.232001.18009@omews63.intel.com> <1991Jan30.215017.2651@ux1.cso.uiuc.edu> <1991Feb1.165126.23292@spool.cs.wisc.edu> <1991Feb1.204421.25992@news.larc.nasa.gov>
Reply-To: jgk@osc.COM (Joe Keane)
Distribution: usa
Organization: Versant Object Technology, Menlo Park, CA
Lines: 10

In article <1991Feb1.204421.25992@news.larc.nasa.gov>
kludge@grissom.larc.nasa.gov ( Scott Dorsey) writes:
>PDP-11              Not RISC

But the PDP-11 has such a simple instruction set.  Every instruction is one
word, and there are only a couple formats.  Having the PC as a general
register eliminates many separate instructions and addressing modes.

Well OK, it's not really RISC, but i don't think you could call it a complex
instruction set computer.