Note that as far as the slope math goes, Bresenham is special since it doesn't require the division of x by y, but BRR lines do. So for short line segments, Bresenham can still "win". In fact, BRR lines also need a bit more elaborate math for the remainder. (So this method really shines if you're able to pull in the 1541 for help. See my upcoming post about drivecode) How does this work? Let's div