From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,583275b6950bf4e6 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-05-29 10:08:38 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!cyclone.bc.net!arclight.uoregon.edu!wn13feed!wn12feed!worldnet.att.net!204.127.198.203!attbi_feed3!attbi.com!rwcrnsc51.ops.asp.att.net.POSTED!not-for-mail From: tmoran@acm.org Newsgroups: comp.lang.ada Subject: Re: Saturated Math References: <3ED5EA28.2040703@noplace.com> X-Newsreader: Tom's custom newsreader Message-ID: NNTP-Posting-Host: 12.234.13.56 X-Complaints-To: abuse@attbi.com X-Trace: rwcrnsc51.ops.asp.att.net 1054228112 12.234.13.56 (Thu, 29 May 2003 17:08:32 GMT) NNTP-Posting-Date: Thu, 29 May 2003 17:08:32 GMT Organization: AT&T Broadband Date: Thu, 29 May 2003 17:08:32 GMT Xref: archiver1.google.com comp.lang.ada:38004 Date: 2003-05-29T17:08:32+00:00 List-Id: >inches and you try to command it to +5.5 inches, it "saturates" at +5.0. >If I start commanding it to +4.0 inches, that's where it starts to go. >One can find analogies in other problem domains as well. I would imagine anywhwere actuators are involved. eg, the brightness of a pixel, the loudness of a sound. The Pentium has had special instructions for multimedia saturating arithmetic for some time now. OTOH, they also do SIMD, which is not especially well expressed in Ada and ought, for speed reasons, to be done in asm libraries. ------------ "Property is theft" -- Proudhon