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Article #59Re: [Altivec Newbie] optimizing current code?
From: Mark Day
Date: Thu, 18 Jan 2001 18:44
Date: Thu, 18 Jan 2001 18:44
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1847 bytes
In article <170120011731277716%dcardani@buena.spamfree.com>, Darrin Cardani <dcardani@buena.spamfree.com> wrote: > Be careful > of vMathLib, though, as the trig functions are wacked. They are either > very buggy, or I'm using them in some unintended way. For example, the > sin and cos functions will return values outside of the -1 to 1 range. > It's always repeatable, and always the same result, but it's wrong, as > far as I can tell. I checked with the AltiVec engineers, and they say this is already fixed in 9.1. -Mark
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10bcce,a6671d8e4f3ed02f X-Google-Attributes: gid10bcce,public X-Google-Thread: 101ec9,a6671d8e4f3ed02f X-Google-Attributes: gid101ec9,public X-Google-Thread: f635e,a6671d8e4f3ed02f X-Google-Attributes: gidf635e,public X-Google-ArrivalTime: 2001-01-18 10:56:05 PST Path: arc1-ca.pugleaf.net!supernews.google.com!sn-xit-03!supernews.com!cyclone-sjo1.usenetserver.com!news-out.usenetserver.com!newsxfer.interpacket.net!news-hog.berkeley.edu!ucberkeley!newsxfer3.itd.umich.edu!forum.apple.com!news.apple.com!mday From: Mark Day <mday@apple.com> Newsgroups: comp.sys.mac.programmer.help,comp.sys.mac.programmer.codewarrior,codewarrior.mac Subject: Re: [Altivec Newbie] optimizing current code? Date: Thu, 18 Jan 2001 10:44:34 -0800 Organization: Apple Computer, Inc. Lines: 14 Message-ID: <180120011044342311%mday@apple.com> References: <943r3l$hn2$1@nnrp1.deja.com> <170120011731277716%dcardani@buena.spamfree.com> NNTP-Posting-Host: daybreak.apple.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Trace: news.apple.com 979843582 14267 17.201.20.119 (18 Jan 2001 18:46:22 GMT) X-Complaints-To: usenet@news.apple.com NNTP-Posting-Date: 18 Jan 2001 18:46:22 GMT User-Agent: YA-NewsWatcher/5.0.1