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Message
From: Tony Burch<tony@B...>
Date: Tue Sep 21 02:54:41 CEST 2004
Subject: [oc] Logs in hardware?
Hi Mike,Log can be calculated using the CORDIC algorithm. Ray Andraka has a paper:
A survey of CORDIC algorithms for FPGAs
http://www.andraka.com/cordic.htm
You could also possibly consider using a ROM
lookup table. The ROM doesn't necessarily have
to be on-chip.
Best regards,
Tony Burch
B U R C H E D
Simple FPGA Boards, The Most Free I/O, Easy Prototyping
http://www.burched.biz
----- Original Message -----
From: "Michael M Delaney" <mmdst23+@pitt.edu>
To: "Discussion list about free open source IP cores" <cores@o...>
Sent: Tuesday, 21 September 2004 6:41
Subject: [oc] Logs in hardware?
> 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
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