Article View: comp.arch
Article #1647Re: DECSYSTEM 20
From: David Muir Sharnoff
Date: Tue, 25 Jul 1989 05:54
Date: Tue, 25 Jul 1989 05:54
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In article <3893@phri.UUCP> roy@phri.UUCP (Roy Smith) writes: > I always wanted to try (I don't know why I never did) using >auto-decrement mode on r7 (i.e. the pc). I wonder what would happen? A >tight 1-instruction infinite loop? Akin, but not as bad as, the famous GD >Nova and DEC-10 infinite-indirection loops, I guess. How about ... mov -(pc), -(pc) (assuming I remember the assembler syntax...) I've always thought that the PDP11 is the right machine to play COREWARS on. -Dave David Muir Sharnoff. "RISC is about one year ahead" muir@postgres.berkeley.edu (415) 524-2931
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!ucbvax!postgres!muir From: muir@postgres.uucp (David Muir Sharnoff) Newsgroups: comp.arch Subject: Re: DECSYSTEM 20 Message-ID: <30191@ucbvax.BERKELEY.EDU> Date: 25 Jul 89 05:54:20 GMT References: <3256@wpi.wpi.edu> <EGDORF.89Jul21195924@zaphod.lanl.gov> <443@anasaz.UUCP> <BRUCE.89Jul23155646@heather.pooh.com> <3893@phri.UUCP> Sender: usenet@ucbvax.BERKELEY.EDU Reply-To: muir@postgres.Berkeley.EDU (David Muir Sharnoff) Organization: Postgres Research Group, UC Berkeley Lines: 17