SBZ is a fast LZSS-type compression algorithm designed for 68000 processors.
Typical decompression performance is about 260 kb/s on Mega Drive.
Compression ratio depends on the source data but should be roughly comparable to the "Kosinski" algorithm.
Easiest way is to simply run make. (Don't use the SGDK toolchain for
this, though. You need a native C toolchain, such as MinGW-w64.)
It is also possible to use sbz.c as a single-file library in your own
C programs, see the source code for details.
To compress:
sbz <input.bin> <output.sbz>
(It is also possible to drag and drop files to compress, resulting
files will keep the original filename and extension but with .sbz
appended).
To decompress:
sbz -d <input.sbz> <output.bin>
SBZ compressed files must be WORD ALIGNED in 68000 memory.
If you use rescomp, make sure that the align value is set to 2.
If you use an assembler, make sure to add an even directive before
incbining any SBZ files.
Note: The C/ASM blob implementation has been tested with GCC 6.3.0 and should also work with later versions.
Add "sbz68k.c" and "sbz68k.h" to your project. Include "sbz68k.h" and
use the function SBZ_decompress to decompress. The return value is
a pointer to the byte following the last decompressed byte.
Zlib license.