mirror of
https://github.com/wwarthen/RomWBW.git
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8b9be05bea
- Reorganized most of the "common" files into special directories. - Fixed bug affecting application boot related to ROM checksum test. - Added support for LiNC sound card at default port address.
74 lines
3.5 KiB
Plaintext
74 lines
3.5 KiB
Plaintext
UNZIPZ vers 0.3
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Z-System UNZIPPER
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UNZIZ can extract all files from any zip file created by PKZIP on MSDOS.
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As such it should prove useful on CP/M systems for extracting CP/M relevant
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files from zip archives found on BBSs or the Web since UNZIPZ preserves date
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stamps on CP/M systems with Date Stamping.
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To use UNZIPZ use the following Syntax:
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UNZIP [dir:]ufn[.ZIP][dir:][afn ][/o]
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On ZCPR3x systems {dir} can be either in named directory or DU (Drive
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Letter followed by User number) form otherwise, the DU form must be used.
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If {afn} is not given, *.* is assumed. If no option is specified, UNZIPZ
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checks the CRCs of the files matching {dir:afn}. The only option is E which
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causes the extraction of files matching {dir:afn} unless the file already
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exists. In that case, the user is informed that it exists and the file is not
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extracted. To extract such files, they must be erased and then extraction
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reattempted.
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For each file processed, the following information is displayed: Name,
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Uncompressed Length, Stored Length, Compression Method, PKZIP Version,
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File Date and Time, 32 bit CRC and Status. Status consists of CRC OK, CRC
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ERR or EXISTS. Example ouput:
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UNZIPZ Version 0.4-1 - SC
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ZIP archive = H4:SOURCE.ZIP
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Output Drive = H4:
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Name Length Stored Method Ver File Date & Time CRC STATUS
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============ ======= ======= ======== === ========= ===== ======== =======
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UDATZI .Z80 3201 1320 Deflated 20 19 Oct 20 07:22 CC7E8454 CRC OK
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UNZIP .Z80 18464 5419 Deflated 20 19 Oct 20 21:16 45E711B1 CRC OK
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UNZIP12 .Z80 17649 5042 Deflated 20 08 Jun 20 07:46 4C05E1AB EXISTS
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The current version is a significant revision of ver 0.2. Main improvement
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is the addition of the undeflate algorithm (thanks Martin). In addition the
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CRCs are only checked for extracted files which speeds things up
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considerably. Speedups to the undeflate algorithm by Russell Marks have
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also been incorporated. The ouput display has been improved substantialy
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and is similar to UNARCZ10.
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Version 0.2 Notes by Simon Cran.
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The files in this archive are my Z-modified version of UNZIP 1.2. They
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consist of three files in order to make sure that the unitialised data ends
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up at the end of all files linked. Also, because the unitialised data file
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(UDATZI.Z80) needed to share some equates with the main program, all
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equates have been put in a separate .LIB file.
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The original program is fast and dirty. This Z-modified version gets rid of
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some of the dirty without sacrificing too much else. Note however, it is
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only in embryonic stages... It has not developed to the point of UNARCZ10
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for example.
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That said though, it does work, and well enough to find a niche out there.
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Its main advantage is speed when you wish to extract all the files in the
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archive. You can now specify particular files to extract, but it isn't much
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quicker in that mode, as it still decodes each file in the archive and checks
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its CRC. That will change in a future version.
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The display is now better, but it is very much in development mode! The
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idea is to have it approximately mimic UNARCZ10. It kind of does that now,
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but leaves out a lot of information... I'm working on it!
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Source code is included, but without comments. If you'd like to know more,
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contact me.
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Simeon!
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Z-Node 62
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Perth
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Western Australia.
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