[comp.sys.next] FFT program on DSP 56000

frank@dendrite.sps.mot.com (Mark Frank) (06/29/91)

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.