Re: FP in kernelspace

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Arjan van de Ven wrote:
So 2 questions are:
1) howto FP in kernel

kernel_fpu_begin();
c = d * 3.14;
kernel_fpu_end();

Yup, I know about this possibility, but this is only x86 specific?!

unfortunately this only works for MMX not for real fpu (due to exception
handling uglies)

concludes it's not multiplatform at all... For that reasen I (maybe) want some "protocol" for communication with US, where I can easily compute it.

Another way could be rtai (there is FP implemented IIRC), but it means having out-of-kernel driver.

thanks,
--
<a href="http://www.fi.muni.cz/~xslaby/";>Jiri Slaby</a>
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E
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