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Article #10538skip instructions
From: James Thomas
Date: Wed, 01 May 1991 22:51
Date: Wed, 01 May 1991 22:51
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844 bytes
(I'm sorry if this is an alt.folklore.computers question, but :-) Is there a reference (or more) describing why SKIP instructions have mostly disappeared from instruction sets? The 704x and 709x had them, so the PDP-6 had them (and maybe therefore the PDP-8 inherited them). Now the HP-PA has them hiding in the guise of the nullify bit. Are conditional branches generically more useful? Thanks, Jim
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!sample.eng.ohio-state.edu!purdue!news.cs.indiana.edu!ariel.unm.edu!nmsu!opus!jthomas From: jthomas@nmsu.edu (James Thomas) Newsgroups: comp.arch Subject: skip instructions Message-ID: <1182@opus.NMSU.Edu> Date: 1 May 91 22:51:15 GMT Sender: news@NMSU.Edu Distribution: comp Organization: NMSU Computer Science Lines: 10