Compress and decompress bitmaps.

In tests, it usually achieves about 40% reduction in data size, and as such, compresses better than any other known image compressor that targets the NES/Famicom platform.
It is based on Tokumaru's compression tool, which itself is based on commercial compression & decompression algorithm used by some Codemasters games. Hence the name.

The distribution includes:

• A commandline compressor & uncompressor tool, written in C++14
• An example CA65-compatible NES project and a 6502 decompressor for the compression scheme

In theory, the tool can compress any data as long its size is a multiple of 16 bytes (size of a NES tile), but it is optimized and designed for NES bitmaps. It will not do very well with other kinds of data.

This program has been written by Joel Yliluoma, a.k.a. Bisqwit,
and is distributed under the terms of the Zlib license.