xxl Posted October 8, 2013 Share Posted October 8, 2013 http://fastcompression.blogspot.in/p/lz4.html LZ4 decompressor for Atari, comparision: source file: gpl3.txt - 35147 bytes exomizer - 12382 bytes + ~256 bytes, decompression time 2.6 sec deflate - 11559 bytes + ~512 bytes, decompression time 3.6 sec LZ4 - 15622 bytes + ~150 bytes, decompression time 1.1 sec direct LZ4 file loading (file=source) 3 Quote Link to comment Share on other sites More sharing options...
+Stephen Posted October 8, 2013 Share Posted October 8, 2013 Nice! Quote Link to comment Share on other sites More sharing options...
Tezz Posted October 8, 2013 Share Posted October 8, 2013 I saw your demonstration video yesterday, and the discussion at aol. Another useful addition for A8 production Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted October 8, 2013 Share Posted October 8, 2013 Always interested in fast decompression algorithms. What's the beef about the choice of file header bytes, BTW? Quote Link to comment Share on other sites More sharing options...
xxl Posted October 9, 2013 Author Share Posted October 9, 2013 http://www.atarimax.com/jindroush.atari.org/afmtexe.html maybe in xB I should add new segment header type $0000 (never as first header in file) - indicates compressed segment. All I/O like note/point, binary load, load data, get... will work with this feature and provide actual not compressed data Quote Link to comment Share on other sites More sharing options...
Tezz Posted October 9, 2013 Share Posted October 9, 2013 I normally pack with exomiser, but LZ4 decompression on the fly would be a good option for xb Quote Link to comment Share on other sites More sharing options...
xxl Posted October 10, 2013 Author Share Posted October 10, 2013 source code: http://xxl.atari.pl/?p=1524 132 bytes (not using ZeroPage) 1 Quote Link to comment Share on other sites More sharing options...
Tezz Posted October 10, 2013 Share Posted October 10, 2013 Thanks Xxl and Fox I will make use of LZ4 right now for one of the projects while putting some stuff together with xbios for the weekend. Quote Link to comment Share on other sites More sharing options...
xxl Posted October 11, 2013 Author Share Posted October 11, 2013 An example of how to use it: http://xxl.atari.pl/?p=1561 Quote Link to comment Share on other sites More sharing options...
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