[Coco] Coco game engine demo

[Harry Hurst]

> This brings up a separate question.  Does anyone know if the PAL and NTSC
> versions of the Coco use different clock frequencies?  I know that they
> did
> for the Commodore Plus/4, and the PAL version was run at a speed that was
> a
> few percent higher than the NTSC machine.
>

The CoCo3 PAL version runs on a main crystal frequency of 28.475 MHz. NTSC
is at 28.63636 MHz. The PAL clocks to the system are correspondingly
slower.