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Article #13485Re: Branch prediction in the 532
From: robison
Date: Wed, 22 Apr 1987 16:22
Date: Wed, 22 Apr 1987 16:22
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1164 bytes
Are there any good papers on branch prediction? I've seen two schemes:
1) Put an extra bit in the instruction indicating which way the branch
will probably go. This is a compile-time prediction.
2) Keep a record of past branches, i.e. run-time prediction.
Though I've heard of examples of machines with each scheme, I've never
seen any studies of their efficiency.
Arch D. Robison
University of Illinois at Urbana-Champaign
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!ames!ptsfa!ihnp4!inuxc!pur-ee!uiucdcs!uiucdcsb!robison From: robison@uiucdcsb.cs.uiuc.edu Newsgroups: comp.arch Subject: Re: Branch prediction in the 532 Message-ID: <165100008@uiucdcsb> Date: Wed, 22-Apr-87 11:22:00 EST Article-I.D.: uiucdcsb.165100008 Posted: Wed Apr 22 11:22:00 1987 Date-Received: Sat, 25-Apr-87 09:37:11 EST References: <324@dumbo.UUCP> Lines: 17 Nf-ID: #R:dumbo.UUCP:324:uiucdcsb:165100008:000:559 Nf-From: uiucdcsb.cs.uiuc.edu!robison Apr 22 10:22:00 1987