I’ve been very busy at work recently so have been unable to fiddle much with my broken Spectrum; it’s very much a lunchtime activity but unfortunately my lunchtimes have been non-existent recently. However, I have been fiddling around writing some Z80 for my own pleasure and have posted the source online today for your amusement. I’m perfectly happy for you to use this code or this with or without modification; a little acknowledgement would be nice, …