This is a collection of tools for compressing and decompressing Nintendo's LZSS formats, found in games such as Pokémon. MIT licensed.
Supports: (Python 3)
- LZ10 (compression and decompression)
- LZ11 (compression and decompression)
- overlays (decompression only)
Python 2 support is less complete:
- LZ10 (decompression only)
- overlays (decompression only)
Note: Names are pretty inconsistent. I variously refer the compression algorithm as LZSS, LZSS10, LZ10 and NLZ10.
lzss3.py- LZ decompression routines for Python 3. Can used as a module or a standalone script.compress.py- LZ compression routines for Python 3. Should be merged into lzss3.py. Command-line interface is spotty.verify.py- Script i threw together while trying to debug LZ11 compression. Should be merged intolzss3.py. Python 3.lzss.py- Incomplete LZ decompression routines for Python 2. Only supports LZ10.armdecomp.py- Command-line tool for decompressing overlays or arm9.bin. Python 2 version.armdecomp3.py- Command-line tool for decompressing overlays or arm9.bin. Python 3 version. About twice as fast as the Python 2 version. The code has already been merged intolzss3.py, so this file isn't really needed.test_lzss3.py- Tests forlzss3.pyandcompress.py.