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Forums > CSDb Entries > Release id #135201 : Level-Cruncher V4.0
2020-11-24 16:33
Six

Registered: Apr 2002
Posts: 287
Release id #135201 : Level-Cruncher V4.0

Does anyone have in-depth knowledge of the compression algorithm this uses before I go digging? I'd really like to be able to pack these files in my cross-dev chain instead of having to move them around and pack them manually.
2020-11-24 16:52
Krill

Registered: Apr 2002
Posts: 2839
Pretty sure an "in-depth" description would be actual C code to crunch. :)

That said, what does it do that current packers don't? Any reasons not to switch to a modern "level" cruncher?
2020-11-24 18:23
tlr

Registered: Sep 2003
Posts: 1714
It refers to "Basic routines" by Matcham. Is that the actual cruncher? :)
If it's anything like time cruncher it's going to be a typical LZ77 with ad-hoc entropy encoding on lengths and offsets. They differed quite a bit between versions.

If you want to do it in the cross-dev chain I would go for wrapping it in a simple emulator wrapper. It can be slow if you run with high compression settings though.
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