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Message
From: Lars Segerlund<lars.segerlund@c...>
Date: Tue Sep 21 09:36:31 CEST 2004
Subject: [oc] Logs in hardware?
If you want to do it fast you might check out a CORDIC , it's a coordinate rotator algorithm, and I am quite certain that it might do log's as well, ( doen very close to everything :-) ).
There is one on opencores, with some references.
Otherwise there always newtons algorithm, ( which can be speed up a bit for a specific function as long as it's monotone), I think it's still the fastest as for square roots, don't know about logs, but I think a codic might be better in hardware.
/ Lars Segerlund.
On Mon, 20 Sep 2004 16:41:41 -0400 (EDT)
Michael M Delaney <mmdst23+@pitt.edu> wrote:
> Can anyone suggest any websites, books, or papers on how a log is actaully
> calcuated? So far, I haven't had much luck with google, and after looking
> at the list archives for the FPU, it seems like it was decided that doing
> logs and trigs in hardware wasn't worth the time and effort (I could be
> wrong, I only took a quick glance through the source).
>
> Thanks,
> Mike
> _______________________________________________
> http://www.opencores.org/mailman/listinfo/cores
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