What is the compression algorithm here?

Question

Algorithms

I'm trying to unpack BNTX textures for Nintendo Switch that are compressed with an incomprehensible compression algorithm. Moreover, the LZS file has a header of 12 bytes (the size of the compressed file, the size of the decompressed file, the byte of the compressed block), and the compressed blocks themselves are 3 bytes each (magic, -//-, length of the unzipped line). Raw here - https://drive.google.com/file/d/1WaGNfg0cAMxPBljW4... . Can anyone help identify what this algorithm is?

Answer 1

look backwards