Date   : Sun, 16 Sep 2007 12:38:28 +0100
From   : dl.harper@... (David Harper)
Subject: AMX mouse on a Master

Sprow wrote:

> Does anyone know if there's a special Master version of the AMX mouse 
> driver
> (AMX art et al)? The BBC B ROM doesn't seem to do much.

I suspect the problem is the shadow screen. (That is what I found awkward 
when I was writing a mouse driver for the Beeb. I never managed to get the 
mouse to work properly with the shadow screen on the B+, and it needed 
direct manipulation of the screen control registers to get it to work on a 
Master.)

A mouse-based program that has not been written with the Master in mind will 
not generally work with the shadow screen enabled.

Try switching shadow screen off. If it then works, then at least you know 
where the problem lies.

David Harper