Subject: Re: [linux-audio-dev] Denormal numbers
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Sun Aug 03 2003 - 21:42:20 EEST
On Sat, Aug 02, 2003 at 11:14:25 +0300, Jussi Laako wrote:
> On Thu, 2003-07-31 at 11:45, Alfons Adriaensen wrote:
> > Do you know of a *very fast* (probably inline assembly) way to force
> > denormal FP numbers to zero ?
>
> If I remember correctly, SSE does flush-denormals-to-zero by default.
Yes, I think thats correct, but I got a performace penalty when I've tried
telling gcc to produce SSE code instead of 387.
I should play with it somemore, its possibel that you can tell the 387 to
ignore the exceptions.
- Steve
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