How to Crack a Custom Compression Algorithm
Hi folks! My team (the Haroohie Translation Club) has recently started a blog, and in our first ROM hacking post, I go into depth on how I reverse-engineered the compression algorithm for Suzumiya Haruhi no Chokuretsu for the Nintendo DS. This is aimed at a general audience and should serve as a general tutorial for how to think about approaching problems like compressed files. Compression is a common roadblock for people early on in ROM hacking so I wanted to write something to help folks encountering that for the first time. Please take a look at it and let me know if you have any thoughts or questions!
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