>Are you aware that no screen is 64k x 64k?

AmigaOS, I believe from 2.0 onwards, could do that[0].

Width and Height being 16bit attributes of the struct for the requested screen.

I haven't seen an actual monitor able to display the whole thing at once, but that's fine, because you can make your screen gigantic yet set the video output to a much lower resolution.

Intuition will let you scroll through it by moving the mouse pointer past the edge.

0. http://amigadev.elowar.com/read/ADCD_2.1/Includes_and_Autodo...