[Coco] Artifacting on LCD?

[Jim Hickle]

--- On Thu, 4/9/09, Christian Lesage <hyperfrog at gmail.com> wrote:

> I seem to remember there was a way to patch most games to
> make them run in 128x192, 4 colours instead of 256x192, 2
> colours. The CoCo 3 palette was then manipulated to make
> those 4 colours black, white, red and blue, in order to
> mimic the artifacted mode, or, as I did because I could only
> afford a monochrome monitor, 4 levels of gray. Does anyone
> remember how it was done? I still only use a monochrome
> monitor!
> 

I think all it did was change from PMODE 4 to PMODE 3.