Mail Archives: djgpp/1998/09/16/17:30:40
From: | Endlisnis <s257m AT unb DOT ca>
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | Re: Floating/fixed point
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Date: | Tue, 15 Sep 1998 22:14:21 -0300
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Organization: | NBTel Internet
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Lines: | 20
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Message-ID: | <35FF10ED.5522821F@unb.ca>
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References: | <000101bddf18$9db5fa00$d54b08c3 AT arthur>
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NNTP-Posting-Host: | fctnts11c62.nbnet.nb.ca
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Mime-Version: | 1.0
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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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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