memory is hazy, but using SP to move the memory was fast enough you could blit most (not all) of a screen in one refresh cycle - which is, I think, why games li

memory is hazy, but using SP to move the memory was fast enough you could blit most (not all) of a screen in one refresh cycle - which is, I think, why games like Uridium (https://www.youtube.com/watch?v=TvULd4zHz8Y https://www.youtube.com/watch?v=TvULd4zHz8Y) were running the main gameplay in a smaller area also, on that Uridium vid - notice how they are using the standard font but spacing it out vertically (so they could save memory)