This format (or something similar) may work for my project. I’ve designed a set of low color images for a retro TRS-80 computer I own and would like to write a

This format (or something similar) may work for my project. I’ve designed a set of low color images for a retro TRS-80 computer I own and would like to write a slot machine app for. With its low processing power and my self-imposed requirement to write it in the BASIC language I would have used as a kid, the machine doesn’t have a lot of processing power or memory to do decompression stuff. Some of the concepts here seem simple enough to implement. I can probably reduce it even farther since I have less colors.