Article View: comp.arch
Article #11197Re: RISC assemblers question
From: Robert Hyatt
Date: Fri, 18 Dec 1992 22:19
Date: Fri, 18 Dec 1992 22:19
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In article <75756@apple.apple.COM> tim@Apple.COM (Tim Olson) writes: >In article <Dec.17.10.16.36.1992.17493@cadenza.rutgers.edu> masticol@cadenza.rutgers.edu (Steve Masticola) writes: > >|I've met a couple of people who have attempted to write assemblers for >|RISC machines, who say that it's a difficult job. Can someone give me >|an inkling as to why? > >From my experience, it's just the opposite. RISC processors tend to >have a few simple instruction formats, fixed fields, etc. Also, with >the limited number of addressing modes in RISC processors, parsing >becomes almost trivial. > The problem is that the assembler writer apparently never knows when his job is finished..... :^) He/she keeps writing, handling more special cases, etc. The final product IS a difficult project. However, I would prefer a simple assembler, not one that tries to "think" for me. An example is the one from Cray Research. It doesn't "get in the way" of my bad (or good) coding practices. -- !Robert Hyatt Computer and Information Sciences ! !hyatt@cis.uab.edu University of Alabama at Birmingham !
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Newsgroups: comp.arch Path: arc1-ca.pugleaf.net!sparky!uunet!europa.asd.contel.com!emory!cs.utk.edu!willis1.cis.uab.edu!hyatt From: hyatt@cis.uab.edu (Robert Hyatt) Subject: Re: RISC assemblers question Message-ID: <1992Dec18.221947.8589@cis.uab.edu> Organization: University of Alabama at Birmingham References: <Dec.17.10.16.36.1992.17493@cadenza.rutgers.edu> <75756@apple.apple.COM> Date: Fri, 18 Dec 1992 22:19:47 GMT Lines: 25