Short:    Bzip2 xpk compression library (68k,WarpOS,MorphOS) V1.5
Author:   oliver@futaura.co.uk (Oliver Roberts)
Uploader: oliver@futaura.co.uk (Oliver Roberts)
Version:  1.5
Type:     util/pack
Requires: OS 3.0+,68020+,xpkmaster.library

Changes since previous release:

 - Compression speed: 5% faster for WarpOS and 20-30% faster for 68k
 - Decompression speed: 15% faster for WarpOS and 3-5% faster for 68k
 - Added a native MorphOS version of the library
 - Recoded much of the library startup code
 - Modified internal structure of the WarpOS version, to totally safeguard
   against cache conflicts (may have caused rare random crashes)


DESCRIPTION

Julian Sadler's bzip2 compresses files using the Burrows-Wheeler block
sorting text compression algorithm, and Huffman coding. Compression is
generally considerably better than that achieved by more conventional
LZ77/LZ78-based compressors, and approaches the performance of the PPM
family of statistical compressors.

xpkBZP2.library uses the same compression algorithm as bzip2, and allows
you to compress files with the same high crunch factor as bzip2, but under
the XPK interface.

In summary, xpkBZP2.library offers generally a very high compression ratio,
typically around 70-90%.  Of course, there's no such thing as a free lunch,
and the downside is that the compression routines require lots of memory,
although there are modes available which use less memory, at the expense of
compression efficiency.


============================= Archive contents =============================

Original  Packed Ratio    Date     Time    Name
-------- ------- ----- --------- --------  -------------
    2802    1848 34.0% 16-Apr-00 15:29:34  xpkBZP2.info
    3290    1123 65.8% 15-Feb-01 15:44:36 +Install_xpkBZP2
    2024    1540 23.9% 16-Apr-00 15:30:10 +Install_xpkBZP2.info
   34840   15079 56.7% 15-Feb-01 18:38:24 +xpkBZP2.library.020
     144     130  9.7% 15-Feb-01 18:38:24 +xpkBZP2.library.030.pch
    1768    1315 25.6% 15-Feb-01 18:38:26 +xpkBZP2.library.040.pch
    5280    3500 33.7% 15-Feb-01 18:38:28 +xpkBZP2.library.060.pch
   56204   20455 63.6% 15-Feb-01 18:36:50 +xpkBZP2.library.elf
   53876   19939 62.9% 15-Feb-01 18:36:26 +xpkBZP2.library.wos
   14636    9285 36.5% 16-May-96 12:42:42 +spatch
    9670    3814 60.5% 15-Feb-01 21:26:40 +xpkBZP2.guide
    2924    2308 21.0% 16-Apr-00 15:30:10 +xpkBZP2.guide.info
-------- ------- ----- --------- --------
  187458   80336 57.1% 16-Feb-101 07:52:54   12 files