Article View: comp.arch
Article #1819Re: delayed branch
From: Jeremy G Harris
Date: Fri, 11 Aug 1989 10:18
Date: Fri, 11 Aug 1989 10:18
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1066 bytes
In article <26676@amdcad.AMD.COM> tim@amd.com (Tim Olson) writes: >Does anyone else know of other processors with such restrictions? The Motorola MC88100 User's Manual disallows traps, jumps, branches etc from use in branch delay slots "to ensure future compatibility". I'm intrigued that AMD didn't (not displeased, note). The first time I was reading a 29K manual and realised you might be able to do this sort of thing, I said to myself "Aha! The PDP-10 EXEC instruction!" Jeremy -- Jeremy Harris jgh@root.co.uk
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<828@eutrc3.urc.tue.nl> <26667@amdcad.AMD.COM> <0YrsEMy00V4GQ=CJZw@andrew.cmu.edu> <26676@amdcad.AMD.COM>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!usc!cs.utexas.edu!uunet!mcvax!ukc!stl!stc!root44!jgh From: jgh@root.co.uk (Jeremy G Harris) Newsgroups: comp.arch Subject: Re: delayed branch Summary: 88K disallows branch in delay slot Message-ID: <778@root44.co.uk> Date: 11 Aug 89 10:18:46 GMT References: <828@eutrc3.urc.tue.nl> <26667@amdcad.AMD.COM> <0YrsEMy00V4GQ=CJZw@andrew.cmu.edu> <26676@amdcad.AMD.COM> Reply-To: jgh@root44.UUCP (Jeremy G Harris) Organization: UniSoft Ltd, London, England Lines: 13