A tiny game about writing assembly code to pass the graphics tests. Use this tag for questions that involve writing code in BOX-256 machine language.
The BOX-256 is a pure 8-bit computer in a sense that it has exactly 256 bytes of memory. The first byte is the program counter. The bytes following are the opcodes of the actual program and the rest is free memory for the program to use. There is no memory protection at all, so it is possible to write self-modifying code or straight into the program counter (to achieve jumps). Right now it doesn't have any I/O yet, but it is planned.
The above quote is taken from the creator's blog post about the game.
The BOX-256 is based on the TIS-100.