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- Short: Bzip2 xpk compression library (68K/PPC) V1.4
- Author: oliver.roberts@iname.com (Oliver Roberts)
- Uploader: oliver.roberts@iname.com (Oliver Roberts)
- Version: 1.4
- Type: util/pack
- Requires: OS 3.0+,xpkmaster.library,WarpUp Release 4
-
- 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.
-
- Changes since previous release:
-
- - Added a 68k version (in 020, 030, 040 and 060 flavours) to accompany
- the original WarpOS version.
- - Updated with libbz2 1.0.0 (which was released yesterday), providing
- enhancements including:
- - Faster compression: 10%-25% faster.
- - Much better robustness to corrupted compressed data.
- - Recalculated the mode benchmarks using the 060 version.
-
-
- ============================= Archive contents =============================
-
- Original Packed Ratio Date Time Name
- -------- ------- ----- --------- -------- -------------
- 2802 1848 34.0% 16-Apr-00 15:29:34 xpkBZP2.info
- 2401 864 64.0% 03-May-00 20:22:30 +Install_xpkBZP2
- 2024 1540 23.9% 16-Apr-00 15:30:10 +Install_xpkBZP2.info
- 34116 16853 50.6% 17-May-00 21:05:30 +xpkBZP2.library.020
- 1128 836 25.8% 17-May-00 21:05:32 +xpkBZP2.library.030.pch
- 1648 1329 19.3% 17-May-00 21:05:34 +xpkBZP2.library.040.pch
- 2508 1559 37.8% 17-May-00 21:05:36 +xpkBZP2.library.060.pch
- 62300 18812 69.8% 17-May-00 21:04:48 +xpkBZP2.library.ppc
- 14636 9285 36.5% 16-May-96 12:42:42 +spatch
- 8081 3381 58.1% 17-May-00 21:56:12 +xpkBZP2.guide
- 2924 2308 21.0% 16-Apr-00 15:30:10 +xpkBZP2.guide.info
- -------- ------- ----- --------- --------
- 134568 58615 56.4% 18-May-100 22:30:12 11 files
-