Article View: comp.lang.fortran
Article #6508Re: Precision of floating point multiply
From: Richard Maine
Date: Mon, 29 Sep 2003 16:14
Date: Mon, 29 Sep 2003 16:14
17 lines
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2232 bytes
Ron Shepard <ron-shepard@NOSPAM.comcast.net> writes: > Are the exponents converted automatically with these instructions? > If they aren't, then it seems odd to be able to convert between a > double precision floating point value to a single precision value > just by loading the value into a register. Add usual caveat about my memory, but the exponents don't *NEED* converting. I recall thinking it sort of strange the first time I saw floating point formats where the exponents weren't the same for single and double. I've subsequently gotten used to it. Sounds to me like you are so used to it that you didn't think of the other possibility. :-) -- Richard Maine | Good judgment comes from experience; email: my first.last at org.domain | experience comes from bad judgment. org: nasa, domain: gov | -- Mark Twain
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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: 102b75,7830916812112af0 X-Google-Attributes: gid102b75,public X-Google-Thread: 1094ba,7830916812112af0 X-Google-Attributes: gid1094ba,public X-Google-ArrivalTime: 2003-09-29 09:25:18 PST Path: arc1-ca.pugleaf.net!news1.google.com!newsfeed.stanford.edu!news.ems.psu.edu!news.cis.ohio-state.edu!malgudi.oar.net!news.grc.nasa.gov!newsread.grc.nasa.gov!not-for-mail From: Richard Maine <nospam@see.signature> Newsgroups: comp.lang.fortran,comp.arch,bit.listserv.ibm-main,alt.folklore.computers Subject: Re: Precision of floating point multiply Date: 29 Sep 2003 09:14:15 -0700 Organization: NASA Dryden Lines: 17 Sender: maine@altair.dfrc.nasa.gov Message-ID: <uefziffu7c.fsf@altair.dfrc.nasa.gov> References: <dG4db.598668$uu5.97984@sccrnsc04> <iu6fnvch0g09q9f335tt89ogfcj5jm2ovh@4ax.com> <kmRdb.626671$YN5.452649@sccrnsc01> <bl8q1g$iv7$1@pegasus.csx.cam.ac.uk> <xrXdb.631209$Ho3.121609@sccrnsc03> <ron-shepard-609A55.10533829092003@news.comcast.giganews.com> NNTP-Posting-Host: altair.dfrc.nasa.gov Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Portable Code)