Prehistorik 2 level format
By Jesses (mail at pre2 dot mine dot nu) and Dorten
Visit https://pre2.mine.nu for more Prehistorik 2 stuff

SQZ decoding explanation, v1.1.
Version history:
  1.0 - initial version
  1.1 - add github link about DIET issue

The data files of Prehistorik 2 are compressed, so before you can do anything
with them they must be unpacked.

Some of the files are compressed using ZIV, the compressor from Moktar/Titus
the Fox.
For more details on that, see: https://ttf.mine.nu/techdocs.htm#compress

The majority of the files are compressed with DIET, which can also be used to
decompress them. Version 1.45f of DIET can be found here:
  http://www.vector.co.jp/soft/dl/dos/util/se000305.html
or here for the Japanese-challenged:
  http://translate.google.com/translate?sl=ja&tl=en&u=http://www.vector.co.jp/soft/dl/dos/util/se000305.html

DIET 1.45f has some issues though. When run, the program may give the error
"Abnormal program termination" and refuse to do anything. If that happens,
try running it in DOSBox. Alternatively, try running it from a FAT16
partition, or from a floppy disk. On today's floppy-deprived systems Virtual
Floppy Drive (http://vfd.sourceforge.net/) might be a very useful tool in this
regard. A floppy mount in DOSBox should also work, though.

See here for more discussion, and a patched DIET binary:
  https://github.com/dosbox-staging/dosbox-staging/issues/961#issuecomment-810841638 

To decompress a file with DIET, use the following command:
DIET -R filename.SQZ