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From: Dale Stanbrough <dale@cs.rmit.edu.au>
Subject: Re: Disallowing Pre-Defined Operations
Date: 2000/04/08
Message-ID: <dale-036565.09261708042000@news.rmit.edu.au>#1/1
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References: <8a9eeg$qtv$1@newpoisson.nosc.mil> <38D2E598.262D1CD5@erols.com>
 <8b0pbg$aph$1@nnrp1.deja.com> <38D9A2E8.F720768@erols.com>
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 <38EC160F.E2A13F44@quadruscorp.com> <8cic1h$195$1@nnrp1.deja.com>
 <38ED3145.BE3CEC68@quadruscorp.com>
 <dale-8931D0.10474507042000@news.rmit.edu.au>
 <38EE18A8.FD5F1A05@quadruscorp.com> <8ckre7$o2p2@ftp.kvaerner.com>
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Date: 2000-04-08T00:00:00+00:00
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Marin D. Condic wrote:

> Unless the hardware has
> direct support for it. I've not encountered that anywhere, but that
> doesn't mean it doesn't exist.

PPC Altivec definately does this, and i'm pretty sure that MMX does
(as someone else noted). This is a "must have" for multimedia to
provide support processing image pixals, where many
algorithms require saturation semantics.


Dale