The functions here
https://github.com/BelaPlatform/Bela/blob/master/core/math_runfast.c will allow
to manipulate "fast" mode for ARM vfp (making it non-IEEE-754 compliant). If
you are using the NEON SIMD (you should!) then it always flushes to zero (which
is one of the reasons why NEON is non-compliant)
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0473m/dom1359731193887.html
.
From: Philippe Wicker <pwic...@mac.com>
To: music-dsp@music.columbia.edu
Sent: Friday, 10 March 2017, 9:00
Subject: Re: [music-dsp] denormals on ARM processors ?
No code but some tips here:
https://developer.arm.com/docs/dui0801/latest/advanced-simd-programming/when-to-use-flush-to-zero-mode-in-advanced-simd
On 10 Mar 2017, at 09:51, Stéphane Letz <l...@grame.fr> wrote:
Hin
Following the discussion on "IIR filter efficiency » about denormals, what is
then situation regarding denormals on ARM processors? Is there the equivalent
of SSE _mm_setcsr stuff to force the process to switch in FTZ mode ? Any code
to share to do the same on ARM?
Thanks.
Stéphane Letz
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