[Coco] Help with some HiRes CoCo 3 MMU settings

[Robert Gault]

Glen Hewlett wrote:
> Hi Guys,
>
> I just wanted to report that with all of your help I was able to get my IRQ interrupt working properly in my program and I learned quite bit too.
>
> The main things I had to fix were:
> -Setting up the PIA 0 registers $FF01 & $FF03 with a value of $34
> -Removing the ORCC and ANDCC instructions inside my Interrupt routine
> -Also using the LDA $FF93 as the first instruction in my interrupt routine. (Not sure if it has to be first or just in the routine, but I din’t want to take any chances)
>
> Thanks again for all your help guys, you are the best!  CoCo forever. :)
> Glen
>

Glen,

Read $FF93 if your interrupts are FIRQ otherwise read $FF92.

Robert