Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!oakhill!nddsun1!dendrite!frank
From: frank@dendrite.sps.mot.com (Mark Frank)
Newsgroups: comp.sys.next
Subject: FFT program on DSP 56000
Message-ID: <1040@nddsun1.sps.mot.com>
Date: 28 Jun 91 17:23:58 GMT
Sender: root@nddsun1.sps.mot.com
Distribution: na
Organization: Motorola PCRL, Tempe, AZ
Lines: 7

I have tried to use the FFT program suggested in the Next Developer Library
for the DSP 56000.  Unfortunately, when I ran the program it was almost twice as
slow as a 'C' version running on the '040'.  This even included the case
where I pre-loaded the Sin and Cos tables.  If anyone has any suggestions
on how I can improve the performance please let me know.  I am also 
interested in a 56000 version of a DFT for cases when my data length is
not a power of 2. Thank you- Mark Frank.