[Coco] x-pad on coco 3

[Aaron Wolfe]

Hi,

I recently bought a TRS80 X-PAD gt -116 for cheap off evilbay.  Trying to
test it out on the coco 3 and it seems it may be a dud but just wondered if
there might be another explanation.

The manual shows that you should be able to read status info from
65376,65377,and 65378.  Reading these addresses gives constant values no
matter what I do with the tablet and pen.  Would the addresses need to be
changed when using a coco 3, or any other ideas?

-Aaron