[Coco] Documentation of "complex" artifacting (i.e. more than black/white/blue/red)?

[Robert Gault]

John W. Linville wrote:


> Thanks, Robert.  But while that helps explain the 01 and 10 patterns

> (which fit into the time slot for a single NTSC color pixel), I don't

> think it addresses the patterns involving more than two bits.

>


Sure it does. Think of the screen as having a certain number of pixels per color 
burst cycle. The average location of the pixel pattern within a color burst is 
the fake phase angle. In addition, there is a blend of artifact colors depending 
on which colors are side-by-side.

It is trivial to place on a graphics screen a repeating bit pattern to see what 
color is generated. You can even write a Basic program to do that.