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 22:38:21 

Hi!

> From the comments it seems to be LZ77. I'm no compression specialist, but
> wasn't this the (patented) compression algorithm used in the old compress
> program and GIF images?

No, LZW is the patented algorithm. BTW. this 20-year patent expires in
June this year! :-)
LZ77 is not a compression format, just an algorithm (like RLE). It is used
together with Huffman coding in the DEFLATE format.

Bye,
Piotr

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