[net.micro.cbm] FFT for 6502/Apple

g216723524ea@ucdavis.UUCP (g216723524ea) (05/24/86)

     < line eaters do it byte by byte >
    I'm looking for a machine-language Fast Fourier Transform in 6502 
machine code (ideally for an Apple).  A little search led to the 1979-ish
BUY-IT (Byte) article, 'Fast Fourier for the 6800', and to a 1984 article
for a 6502 FFT in the Amer. J. Physics (vol 52, July-Dec).  This volume 
happens to be out of our library (and has been overdue a week now!), so
I don't even know if it's a useful listing or discussion.  Before I start
hand-translating the 6800 code, has anyone any other ideas or sources (or 
even access to that missing volume?   Sorry I don't have the full reference
handy here.)
   The code will be used in a stimulus-control and signal-averager BASIC 
program used by a neurophys lab which I work for here at U.C. Davis.  
   Thanks for any and all help.  Ron Goldthwaite, Psychology, UCD