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EnigmA Amiga Run 1996 February
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EnigmA AMIGA RUN 04 (1996)(G.R. Edizioni)(IT)[!][issue 1996-02][Skylink CD III].iso
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lzx120.lha
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History.txt
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1995-05-30
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History
-------
Version 1.20r (Registered version only)
May 30, 1995
=======================================
* New -9 compression mode, which compresses even better than the -3 mode.
Going from -3 to -9 usually provides about 1.5 to 3 times the compression
improvement of going from the default to -3.
* New -Qf "faster compression" mode, which improves compression speed at
the expense of RAM (increases memory requirements by 32K).
* Faster compression
Version 1.20 (Evaluation)
May 30, 1995
=========================
* Lowered memory requirements by 80K.
Version 1.10r (Registered version only)
April 29, 1995
=======================================
* All the changes made to the 1.10 evaluation version (see below), plus:
* Asynchronous disk i/o supported for decompression, resulting in a huge
speedup if decompressing from a hard disk or floppy disk. More
improvements in this area are forthcoming.
* Decompression of ".LHA" and ".LZH" files is now supported within LZX.
LZX will automatically recognise .lzh and .lha files, so no special
options are required to decode these files.
LZX generally decompresses these files 25-35% faster than LhA, but
performance varies depending on hard drive and CPU speed.
NOTE: On the 68000EC version the speed increase is smaller; the raw
decompression code is about 20% faster than LhA, but there are
additional speed gains if decompressing from floppy or HD.
* Archive concatenation ("c" command)
* Print files to the console ("p") command
* Fast add ("af") command. This command causes LZX to not check an
existing archive for duplicate files, but to instead append directly to
the end of the existing archive. This option provides a sizeable
performance enhancement to Fido-related mail processing setups which do
not require such checks.
Version 1.10 (Evaluation)
May 8, 1995
=========================
* Fixed a wildcard-related bug on the 68000EC version if using AmigaDOS 1.3
and arp.library.
* The "e" command now works as intended and does not extract full path name
information (unless the -x option is also used).
* LZX no longer uses ExamineFH() to obtain information on open files under
AmigaDOS Release 2 or later, since not all file system handlers support
this operation. Instead, Lock()/Examine() is used.
* Fixed the -m option.
* Adding new files to existing archives is now much faster. This provides
a huge performance boost to Fido-related mail processing setups.
* Deleting many files from an archive is now much faster.
* LZX now exits with exit status 10 if it cannot append to or create an
archive. Previously it did print an error message, but exited with
exit status zero.
* LZX will now display an "Operation successful" or "Operation failed"
message when it exits.
* Performance improvements:
The 68040/68060 version decompresses about 7% faster.
The 68020/68030 version decompresses about 5% faster.
Version 1.01
March 20, 1995
============================
* The LZX "v1" command is now supported as per the documentation, and
is identical to LZX "vv" (verbose view).
* Fixed the "--" option bug with command line parsing.
* LZX now determines if a file to archive is a directory, and will
archive the contents of that; e.g. "lzx a archivename.lzx dirname".
* LZX won't complain if you try to add files to an empty archive.
* LZX won't print blank lines if adding empty dirs with the -F
(fast progress display) option.
* LZX won't display AmigaDOS requesters (e.g. lzx a test.lzx xxx:blah
won't bring up a requester for device "xxx:").
* LZX can now be aborted while it is storing files.
* LZX can now be aborted when searching through an archive if adding
files to that archive.
* The 'e' (extract) command now works.
* LZX a arcname * now works.
* Fixed a date comparison bug in the updating code.
* The -m option now causes files to be overwritten automatically.
* Fixed a bug which made LZX very slow decompressing large archives.
* Reduced memory requirements by 64K (more memory reductions are
coming).
* If the -P (task priority) option is used, LZX will now reset the
priority to its original state upon exit.
* LZX now adds a lower case ".lzx" to archive names, instead of an
upper case ".LZX".
* Performance improvements:
The 68000EC version of LZX compresses about 5% faster.
The 68020/68030 version decompresses about 8% faster.
More performance improvements are forthcoming; Tomi has been able to
tweak another 15% of speed out of the algorithm on the PC, which
should hopefully result in a comparable gain when this change is
ported to the Amiga version.
Version 1.00
February 5, 1995
============================
* Initial release