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Amiga Plus 1995 #5 & #6
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Amiga Plus CD - 1995 - No. 5 and 6.iso
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serien
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purity
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nr.51
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xpk
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rlen.doc
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1995-08-27
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xpkRLEN.library 1.2 (FREEWARE)
Assembler Version
Written by Adam Ciarcinski
E-Mail: adam@felix.univ.szczecin.pl
WHAT IS IT?
My xpkRLEN.library is an assembler version of original xpk library
supported with xpk package. RLEN uses compressrion algorithm known as 'Run
Length', which is good for files contain strings of identical bytes, like
raw graphic images.
INSTALLATION
Just copy xpkRLEN.library to LIBS:Compressors/ directory. You
should have installed xpk package.
COMPATIBILITY
My xpkRLEN.library unpacks files packed using 'old'
xpkRLEN.library, and the 'old' one unpacks my xpkRLEN.library.
WAS IS WORTH IT?
Yes, because now xpkRLEN.library is quite faster and packs a little
better. And, of course, it is shorter than the previous (original) version.
BUGS
xpkRLEN.library was tested ONLY on A1200 with 2 MB Chip and 1 MB
Fast, so it may not work correctly on the other models of Amiga. If you
find some bugs please send me a mail message via e-mail (to the address
above).
HOW TO TEST THAT LIBRARY WORKS CORRECT?
1. Copy files to pack into different directory, or into RAM:
2. Pack them using some xpk packer (like XPack or XPackIt) with RLEN
algorithm. Note that files with no pack gain will not be packed!
3. Unpack all previous packed files.
4. Compare unpacked files with originals (you can use Comp, which you can
find with xpkRLENAsm archive;
usage: Comp <unpacked file> <original file> )
5. If compared files are contain different data or their size are different
it means that the packed didn't work correctly. In that case you should
contact me (by e-mail).