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Mail Archives: djgpp/1998/09/16/17:30:40

From: Endlisnis <s257m AT unb DOT ca>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Floating/fixed point
Date: Tue, 15 Sep 1998 22:14:21 -0300
Organization: NBTel Internet
Lines: 20
Message-ID: <35FF10ED.5522821F@unb.ca>
References: <000101bddf18$9db5fa00$d54b08c3 AT arthur>
NNTP-Posting-Host: fctnts11c62.nbnet.nb.ca
Mime-Version: 1.0
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Arthur wrote:
> 
> Are you sure you're using the FPU? Are you sure you're using a genuine
> Intel? Besides, the real difference is in multiplications, divisions and
> trigonomic functions, which are quite a bit faster than integer math on a
> standard Pentium. On a PII, the FPU is generally the same as a Pentium, but
> integer math is improved quite a bit over a Pentium.
	I am using a Genuine Pentium 150 (Classic).  And floating point operations
take much longer than integer.  I think it is about 5 times slower for
floating point stuff.  A floating point multiply takes about the same time as
a floating point add, so if fadd's were as fast as add's then fmul's would be
significantly faster than mul's.  And everyone would use fmul's!!

-- 
     (\/) Endlisnis (\/)
          s257m AT unb DOT ca
          Endlisnis AT GeoCities DOT com
          Endlis AT nbnet DOT nb DOT ca


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