[Coco] Programming help

Arthur Flexser flexser at fiu.edu
Tue Jun 25 22:18:52 EDT 2013


Mark, the $FFDE/FFDF switch works fine on the CoCo 1/2, so long as
interrupts are disabled and the ML program doesn't return to Basic without
switching back to ROM mode first (or unless ROM has been copied to RAM).

Art


On Tue, Jun 25, 2013 at 7:22 PM, Mark McDougall <msmcdoug at iinet.net.au>wrote:

> On 26/06/2013 2:13 AM, Bill wrote:
>
>  or there is something wrong with the old,
>> modified Coco1 that I have.
>>
>
> Well for starters this will only work on a Coco 3... it's switching the
> ROMs in and out with the $FFDE/$FFDF writes...
>
>
> Regards,
>
> --
> |              Mark McDougall                | "Electrical Engineers do it
> |  <http://members.iinet.net.au/~**msmcdoug<http://members.iinet.net.au/~msmcdoug>>
>   |   with less resistance!"
>
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