[Coco] CoCo's TIMER and 60hz

[Allen Huffman]

> On May 29, 2019, at 12:25 PM, Bill Nobel <b_nobel at hotmail.com> wrote:
> 
>  The Matchbox VSYNC currently on the Matchbox is at 59.9 Hz so the Matchbox is a bit better than a real Coco3, but is still off.  He is makeing a special build for me that sends the Filed Sync clock to a pin as my Matchbox has extra headers attached that allow for easy testing with an analyzer.  I will let you know the results when I get the build.

Fantastic!

Since the timing changes when using the new video modes (double height), it sounds like Roger suggests a Matchbox-specific hardware clock. I think there are new IRQs we could use for that?

		— Allen