Would this run on the same Amstrad my friend had when I was a kid with the tape drive built in? If so this must be some sort of magic happening here. Mind you, I was always impressed with the Amstrad.
It's disk only, I don't like the horizontal interlace (although it probably looks better on a crt).
https://www.youtube.com/watch?v=yl_MSCpGC0MThe magic is the scrolling, except it's not really magic. It's just careful programming of the 6845 video controller. I don't believe it's a new concept either, people were doing 6845 tricks in the old days as well.
