From: Piotr Fusik (P.Fusik_at_elka.pw.edu.pl)
Date: 2003-09-21 11:50:18
On Fri, 19 Sep 2003, Ullrich von Bassewitz wrote: > On Fri, Sep 19, 2003 at 05:44:43PM +0200, MagerValp wrote: > > Ah, OK. I thought there was an ISO standard for this? > > I've never heard of it. As far as I know there are several "good" polynomials > which are commonly used, but CRC-32 is definitely not an exact specification. > If you look into the source code on 6502.org, you will notice a few comments > about the polynomial used. At least you should check if the perl > implementation is using the same (I assume that it does not). > Take a look at crc32.s of my zlib-compatible library - this CRC-32 is ZIP archive compatible. There's much confusion about order of the bits in the number representing the polynomial, bitwise complements, etc. There's a good big doc about CRCs, maybe I can find it somewhere on my CDs. Piotr ---------------------------------------------------------------------- To unsubscribe from the list send mail to majordomo_at_musoftware.de with the string "unsubscribe cc65" in the body(!) of the mail.
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