Article View: comp.arch
Article #13075Re: register window machine questions
From: bcase
Date: Wed, 25 Feb 1987 23:14
Date: Wed, 25 Feb 1987 23:14
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1439 bytes
In article <4376@columbia.UUCP> eppstein@tom.columbia.edu (David Eppstein) writes:
>Register window machines such as the Berkeley RISCs have been discussed
>recently in this group. I have some questions about these architectures:
>
>(3) Are there machines with both dynamic (windowed) and static (normal)
>registers? For instance it might be useful for quick O.S. interrupts to
>use only statics and not go to the trouble of setting up a register
>window stack (which would involve lots of reads and writes moving the
>old stack completely out to memory and then back again later). Static
>registers could also be useful for non-local variables.
The Pyramid machine has 16 "global" registers that are addressable by all
procedures; i.e., they are a part of every procedure context.
bcase
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!cbatt!ucbvax!amdcad!bcase From: bcase@amdcad.UUCP Newsgroups: comp.arch Subject: Re: register window machine questions Message-ID: <14974@amdcad.UUCP> Date: Wed, 25-Feb-87 18:14:41 EST Article-I.D.: amdcad.14974 Posted: Wed Feb 25 18:14:41 1987 Date-Received: Fri, 27-Feb-87 23:10:48 EST References: <4376@columbia.UUCP> Reply-To: bcase@amdcad.UUCP (Brian Case) Organization: Advanced Micro Devices, Sunnyvale, California Lines: 17