Article View: comp.lang.fortran
Article #6532Re: Precision of floating point multiply
From: Nick Maclaren
Date: Mon, 29 Sep 2003 08:21
Date: Mon, 29 Sep 2003 08:21
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In article <kmRdb.626671$YN5.452649@sccrnsc01>, "Glen Herrmannsfeldt" <gah@ugcs.caltech.edu> writes: |> |> Since my post on Fortran G and H, I have also run the same test on PL/I (F). |> That might be the compiler you used. |> |> For C=C+A*B; single precision A and B, and double precision C, it does the |> same thing Fortran did. |> |> It would be interesting to see the results from newer Fortran and PL/I |> compilers. Yes, but you haven't posted WHAT it did! Given that it doesn't need to do anything special, I am puzzled over what instructions it inserts. Can you post the generated code? Regards, Nick Maclaren.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fd4af,7830916812112af0 X-Google-Attributes: gidfd4af,public X-Google-Thread: fd705,7830916812112af0 X-Google-Attributes: gidfd705,public X-Google-Thread: 1094ba,7830916812112af0 X-Google-Attributes: gid1094ba,public X-Google-Thread: 102b75,7830916812112af0 X-Google-Attributes: gid102b75,public X-Google-ArrivalTime: 2003-09-29 01:21:09 PST Path: arc1-ca.pugleaf.net!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!newsfeed.freenet.de!newsfeed.r-kom.de!newsfeed.stueberl.de!ecngs!feeder.ecngs.de!newsfeed.kabelfoon.nl!195.129.110.21.MISMATCH!bnewsfeed00.bru.ops.eu.uu.net!bnewsinpeer01.bru.ops.eu.uu.net!lnewsinpeer00.lnd.ops.eu.uu.net!emea.uu.net!server1.netnews.ja.net!pegasus.csx.cam.ac.uk!nmm1 From: nmm1@cus.cam.ac.uk (Nick Maclaren) Newsgroups: comp.lang.fortran,comp.arch,bit.listserv.ibm-main,alt.folklore.computers Subject: Re: Precision of floating point multiply Date: 29 Sep 2003 08:21:04 GMT Organization: University of Cambridge, England Lines: 20 Message-ID: <bl8q1g$iv7$1@pegasus.csx.cam.ac.uk> References: <dG4db.598668$uu5.97984@sccrnsc04> <iu6fnvch0g09q9f335tt89ogfcj5jm2ovh@4ax.com> <kmRdb.626671$YN5.452649@sccrnsc01> NNTP-Posting-Host: virgo.cus.cam.ac.uk Originator: nmm1@virgo.cus.cam.ac.uk