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Amiga computer related discussion => Amiga Software Issues and Discussion => Topic started by: Ratte on February 24, 2008, 09:53:27 AM

Title: S: best datacruncher out there
Post by: Ratte on February 24, 2008, 09:53:27 AM

i am searching for the best datacruncher out there
the decruncher is needed as asm-source for my little project

for testing i used a normal a500-kick3.1file

fsc
522641

StoneCracker
366856

powerpacker
350416

Time
338952

TwPack(Pro)
329994

TurtleSmasher
329920

CrunchMania
327258

bwt (aminet)
321401

bzip2 (aminet)
306205

p7zip 4.42 amiga-version
265942

problem, the good bzip2 and 7zip are file-archivers, i need a simple datacruncher
next problem i cant read c-code only some asm (and basic)  :crazy:

is there some (for me unknown) datacruncher with decruncher-source out there, that is good as 7zip compression?

HELP!!!
 :-?

Title: Re: S: best datacruncher out there
Post by: xeron on February 24, 2008, 10:35:09 AM

Interesting that powerpacker beat stonecracker; normally its the other way around.

Title: Re: S: best datacruncher out there
Post by: Ratte on February 24, 2008, 01:35:21 PM

A port of PAQ808 (Win32) (http://cs.fit.edu/~mmahoney/compression/paq8o8.zip) would be nice ...

paq808.exe
524288 -> 216673 bytes only !!!

EDIT:
LPAQ8 (http://cs.fit.edu/~mmahoney/compression/lpaq8.zip) - singlefilecruncher with source

@xeron:
i used "best possible" compression-setups for all crunchers

Title: Re: S: best datacruncher out there
Post by: Piru on February 24, 2008, 02:52:24 PM

Take the short lzma (http://www.7-zip.org/sdk.html) decruncher C code, compile it with size optimizations, hand optimize the generated assembly code. For m68k I bet it will be shorter than 2KB.