aplib decompressor for ZX Basic.

[boriel]

I did some tests. Aplib is slightly better at compression than MegaLZ. On average. Not always - text seems to be a weakness, with MegaLZ winning for one of my text tests.

The difference is very thin, however. How big is the decompressor in bytes, is the next question. Compared to MegaLZ. If it's the same size or smaller, Aplib is probably always the right choice. If it's bigger...you've got a dilemma

From the compiler point of view, I will include both of them. The user must then try packing the binary data with both compressors and choose the smallest result, IMHO.