Re: RISCs Register sets and PDP 10/20s

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Article #1689

#1689

From: Allen J. Baum
Date: Fri, 28 Jul 1989 17:21

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>In article <550@augean.OZ> idall@augean.OZ (Ian Dall) writes:
>
>All this talk of PDP 10s aliasing memory to the first locations of memory
>reminded me of something I was thinking about some time ago.
> ........
>So why not put the "registers" in memory? If the "registers" are the
>first n locations of the virtual address space then they will not have
>to be saved and restored on context switches or interrupts.

Check out the ATT CRISP processor for an implementation of this idea.

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watmath!att!ucbvax!tut.cis.ohio-state.edu!brutus.cs.uiuc.edu!apple!baum
From: baum@Apple.COM (Allen J. Baum)
Newsgroups: comp.arch
Subject: Re: RISCs Register sets and PDP 10/20s
Message-ID: <33551@apple.Apple.COM>
Date: 28 Jul 89 17:21:52 GMT
References: <550@augean.OZ>
Reply-To: baum@apple.UUCP (Allen Baum)
Organization: Apple Computer, Inc.
Lines: 15

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