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Article #2830

Re: ERISC???

#2830
From: Jeff Evarts
Date: Wed, 25 Oct 1989 17:44
27 lines
1718 bytes
In article <1228@crdos1.crd.ge.COM> davidsen@crdos1.UUCP (bill davidsen) writes:
>
>  IMHO too many people are concentrating on the number of opcodes rather
>than the performance on real problems. Let's remember that RISC was
>originally a solution to a performance goal, not some "natural
>principle" which could be defended even if it had hurt performance.

YES! YES! YES!

>-- 
>bill davidsen	(davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen)
>"The world is filled with fools. They blindly follow their so-called
>'reason' in the face of the church and common sense. Any fool can see
>that the world is flat!" - anon

This is important. I head somebody shuddering a few months ago about the
possibility of autoincrement/decrement on a RISC chip. Done properly, this
could add a big 0 cycles to each instruction, and could be a big win.
Unfortunately, anyone appearing on our doorstep today with a chip like
that will be branded a CISC manufacturer adding too many "features" in
silicon rather than in software. Keep in mind what the object was- improved
performance, not philosophy and holy wars.

Just another unsolicited opinion...
	-Jeff Evarts

#include <std.disclaimer>
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Message-ID: <1192@unify.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!uakari.primate.wisc.edu!polyslo!cindy!csusac!unify!jde
References: <16190@vail.ICO.ISC.COM> <2393@gmu90x.UUCP> <1087@m3.mfci.UUCP> <1228@crdos1.crd.ge.COM>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!uakari.primate.wisc.edu!polyslo!cindy!csusac!unify!jde
From: jde@unify.UUCP (Jeff Evarts)
Newsgroups: comp.arch
Subject: Re: ERISC???
Summary: <DING> Cor-rect!
Message-ID: <1192@unify.UUCP>
Date: 25 Oct 89 17:44:26 GMT
References: <16190@vail.ICO.ISC.COM> <2393@gmu90x.UUCP> <1087@m3.mfci.UUCP> <1228@crdos1.crd.ge.COM>
Reply-To: jde@unify.UUCP (Jeff Evarts)
Organization: Unify Corporation, Sacramento, CA, USA
Lines: 27