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Article #12041Multiple Register sets (was Re: XDS940 computer (or Xerox Sigma 9))
From: Sean Eric Fagan
Date: Wed, 12 Jun 1991 19:24
Date: Wed, 12 Jun 1991 19:24
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In article <13016@uwm.edu> jgd@convex.csd.uwm.edu writes: >[Of current general purpose machines, how many use multiple register sets? > Unisys 1100/2200 (formerly Univac and Sperry) systems do -- two sets, > one OS only, and one for everything else. Any others?] The ELXSI has multiple register sets. 32, I believe. And it, too, could context switch merely by chaning register sets. The i960 has multiple "local" register sets, but it uses them on a per-call basis, not per-task. -- Sean Eric Fagan | "I made the universe, but please don't blame me for it; sef@kithrup.COM | I had a bellyache at the time." -----------------+ -- The Turtle (Stephen King, _It_) Any opinions expressed are my own, and generally unpopular with others.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!kithrup!sef From: sef@kithrup.COM (Sean Eric Fagan) Newsgroups: comp.arch Subject: Multiple Register sets (was Re: XDS940 computer (or Xerox Sigma 9)) Message-ID: <1991Jun12.192459.13531@kithrup.COM> Date: 12 Jun 91 19:24:59 GMT References: <22724@paperboy.OSF.ORG> <13016@uwm.edu> Organization: Kithrup Enterprises, Ltd. Lines: 16