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From: g216723524ea@ucdavis.UUCP (g216723524ea)
Newsgroups: net.micro.apple,net.sci,net.research,net.physics,net.micro.cbm
Subject: FFT for 6502/Apple
Message-ID: <340@ucdavis.UUCP>
Date: Sat, 24-May-86 00:04:05 EDT
Article-I.D.: ucdavis.340
Posted: Sat May 24 00:04:05 1986
Date-Received: Sun, 25-May-86 17:29:26 EDT
Distribution: net
Organization: University of California, Davis
Lines: 14
Xref: watmath net.micro.apple:2778 net.sci:937 net.research:481 net.physics:4376 net.micro.cbm:2258


     < 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