spectrum 48k intention learn cpu z80 by writing assembler for zx spectrum 48k render tile map sprites with collision detection read keyboard miniature game running flicker-free at 50 Hz keys: o,p: left, right; q: jump tools fuse 1.6.0: spectrum emulator pasmo 0.5.5: assembler tiled 1.11.2: tile map editor gimp 3.0.6: image manipulator python 3.13.11: automation notes releases are considered finished tagged versions have been played to completion latest commit is under development screenshots