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Article #8765

FPU for PostScript

#8765
From: Dick Dunn
Date: Tue, 09 Jan 1990 04:42
21 lines
1528 bytes
woody@rpp386.cactus.org (Woodrow Baker) writes:
> baffico@adobe.COM (Tom Baffico) writes:
> >...As to the benefit of having a FPU, for most controllers the performance
> > increase is actually quite small.
> 
> AS to the benifits of a FPU, I am certain that the speedup would matter.

I tend to agree with Tom, and while I haven't investigated it, I assume
that Adobe has.  Intuitively, it seems reasonable; I'd think the down'n'
dirty work of the font rendering would be mostly fixed point.  Probably a
lot of it is not numerical work at all.  Still, as I suggest, I ASSume that
Adobe knows what they're doing.

Woody - please submit some evidence that an FPU would make some useful
speedup in a PostScript controller.  I don't mean your conjecture; I mean
some real evidence, or solid reasoning.  Since, once again, you're trying
to tell Adobe that they don't know their business, the burden of proof is
on you.
-- 
Dick Dunn     rcd@ico.isc.com    uucp: {ncar,nbires}!ico!rcd     (303)449-2870
   ...Mr. Natural says, "Use the right tool for the job."
Technical Details
Message-ID: <1990Jan9.044252.18617@ico.isc.com>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ico!rcd
References: <POLLACK.89Dec4133944@toto.cis.ohio-state.edu> <1666@intercon.com> <17582@rpp386.cactus.org>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ico!rcd
From: rcd@ico.isc.com (Dick Dunn)
Newsgroups: comp.lang.postscript
Subject: FPU for PostScript
Summary: Please submit evidence
Message-ID: <1990Jan9.044252.18617@ico.isc.com>
Date: 9 Jan 90 04:42:52 GMT
References: <POLLACK.89Dec4133944@toto.cis.ohio-state.edu> <1666@intercon.com> <17582@rpp386.cactus.org>
Organization: Interactive Systems Corporation, Boulder, CO
Lines: 21