Some messing around with undocumented VDP register (C0001E)
Posted: Tue May 05, 2009 12:47 pm
http://www.youtube.com/watch?v=SJ9_fNi-pM4
unstructured random messing around....
2nd controller was used to change bits, and it also controls the sprite.
I discovered one other thing (not seen in the video), when you move the sprite in lower right corner so some of the sprite is offscreen, you can get some constant lines being drawn to the screen, that seem to use colors from the sprite and the how the lines look depend on the sprite graphics too...... lot of fun...
my cam is dead so I cannot make more videos
If anyone wants, I can prepare that ROM for people with flashcarts to try.
the behaviour is identical on MD2 and MD1.
unstructured random messing around....
2nd controller was used to change bits, and it also controls the sprite.
I discovered one other thing (not seen in the video), when you move the sprite in lower right corner so some of the sprite is offscreen, you can get some constant lines being drawn to the screen, that seem to use colors from the sprite and the how the lines look depend on the sprite graphics too...... lot of fun...
my cam is dead so I cannot make more videos
If anyone wants, I can prepare that ROM for people with flashcarts to try.
the behaviour is identical on MD2 and MD1.