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Re: bit operations -- are they possible?
From: |
Ted Harding |
Subject: |
Re: bit operations -- are they possible? |
Date: |
Sat, 10 Aug 1996 11:15:55 +0100 (GMT+0100) |
( Re Message From: Bernt Nilsson )
>
> I have an older FORTRAN program for demultiplexing sampled data files.
> In these multiplexed files, consisting of 16 bit words, each word
> contains a 12 bit value and a 4 bit channel number.
>
> The problem with the FORTRAN program is that it cannot handle files
> larger than 32 MB. therefore I would like to let Octave handle the
> demultiplexing instead.
>
> Is it possible to use Octave for "sifting" out the value and the
> channel number respectively, or do I have to use C/FORTRAN for this?
> That is, is it possible to rewrite my old program as an Octave m-file?
>
> Since I wrote this message I have found out that I could use the
> string routines bin2dec and dec2bin. The question is then, would an
> m-file using these routines be painfully slow? Is there anyone with
> experience in doing these operations?
Whether or not it is possible, let alone reasonably fast (which it
probably wouldn't be), under octave, I would go for C in this case.
A C program to do this job would be very short, and very fast, and
would not have a problem with file size.
Ted. (address@hidden)