denormal floats (was Re: [linux-audio-dev] XAP spec - early scribbles)
S.W.Harris at ecs.soton.ac.uk
Fri Feb 7 16:24:00 UTC 2003
On Fri, Feb 07, 2003 at 09:38:46 +0100, David Olofson wrote:
> Yeah - but not as cheap as generating occasional spikes, a tone or
> maybe even white noise, to prevent the generation of denormals in the
> first place.
> Besides, if you *get* a denormal to kill, it has to come from
> somewhere. Catching them this late may not avoid all denormal
> processing, unless you do this check after every single FP operation.
> You might get away with doing double processing and checking for
> float denormals, but I don't think that would be totally safe.
I use that in ineer loops, the denormals are generated by filters.
A tone or noise probably would be faster, yes.
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