Re: [cc65] Compression (was: Atmos (was: Regbank))

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From: Piotr Fusik (P.Fusik_at_elka.pw.edu.pl)
Date: 2003-01-05 22:46:16 

On Sun, 5 Jan 2003, Ullrich von Bassewitz wrote:

> This leads to the question, how the code from Jede differs
> from the existing zlib code.
> Maybe the zlib INFLATE/DEFLATE algorithm is different from LZ77?
>
Don't confuse compression algorithms with compression formats.

DEFLATE is a compression format. 'inflate' and 'deflate' are just
traditional names for 'uncompress from DEFLATE format' and 'compress to
DEFLATE format'. See www.ietf.org/rfc/rfc1951.txt for DEFLATE
specification.

LZ77 is a common compression algorithm. There are many incompatible
compression formats based on LZ77.

Bye,
Piotr

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