This is procedurally generated assembly code for a grid of voxel stars on the 6502 You load your star array to InputStarArray and then get the z position and jump to the z header based on that. Supports 16 z positions and 14 bytes of ram with 8 stars per line. This is hard coded and can only be shifted with a scroll register so paralax isn't the most accessible. I probably won't elaborate further cause I'm lazy and y positions definitely aren't accounted for.