Article View: comp.sys.atari.st
Article #6830Re: GNU C Floating Point Math
From: Piet van Oostrum
Date: Mon, 11 Dec 1989 12:39
Date: Mon, 11 Dec 1989 12:39
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1723 bytes
In article <4470.257da18c@uwovax.uwo.ca>, 7103_2622@uwovax (Eric Smith) writes: ` `One other note: the library as distributed has a serious bug in the compare `routine for floats. That should be fixed soon; a temporary workaround is `to use doubles instead of floats. This may have been causing your problems. `-- I published a patch for this problem a month or so ago. Here is the new source for ___cmpsf2: .text .even .globl ___cmpsf2 ___cmpsf2: movel sp@(4),d0 | get a movel sp@(8),d1 | get b bpl cmpsf2_p tstl d0 bpl cmpsf2_p cmpl d1,d0 bgt cmpsf2_m blt cmpsf2_1 cmpsf2_z: clrl d0 rts cmpsf2_p: cmpl d1,d0 bgt cmpsf2_1 beq cmpsf2_z cmpsf2_m: movel #-1,d0 rts cmpsf2_1: movel #1,d0 rts | sigh -- Piet* van Oostrum, Dept of Computer Science, Utrecht University, Padualaan 14, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands. Telephone: +31-30-531806 Uucp: uunet!mcsun!hp4nl!ruuinf!piet Telefax: +31-30-513791 Internet: piet@cs.ruu.nl (*`Pete')
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arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!snorkelwacker!bloom-beacon!eru!luth!sunic!mcsun!hp4nl!ruuinf!cs.ruu.nlReferences:
<3497@jhunix.HCF.JHU.EDU> <1989Dec4.210245.2798@usenet.ins.cwru.edu> <3526@jhunix.HCF.JHU.EDU> <4470.257da18c@uwovax.uwo.ca>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!snorkelwacker!bloom-beacon!eru!luth!sunic!mcsun!hp4nl!ruuinf!cs.ruu.nl From: piet@cs.ruu.nl (Piet van Oostrum) Newsgroups: comp.sys.atari.st Subject: Re: GNU C Floating Point Math Message-ID: <2150@ruuinf.cs.ruu.nl> Date: 11 Dec 89 12:39:18 GMT References: <3497@jhunix.HCF.JHU.EDU> <1989Dec4.210245.2798@usenet.ins.cwru.edu> <3526@jhunix.HCF.JHU.EDU> <4470.257da18c@uwovax.uwo.ca> Sender: news@ruuinf.cs.ruu.nl Reply-To: piet@cs.ruu.nl (Piet van Oostrum) Organization: Dept of Computer Science, Utrecht University, The Netherlands Lines: 42 In-reply-to: 7103_2622@uwovax.uwo.ca (Eric Smith)