[Coco] Easy way to copy 40 track disks to the CoCoSDC?

[Darren A]

On Sat, Apr 25, 2015 at 9:28 PM, Bill Pierce via Coco <coco at maltedmedia.com>
wrote:

> Darren, yep, that was a typo on my part :-)
> So the final correction would be:
>
> *ROM2RAM
> START LDX #$8000
> LOOP CLR $FFDE
>  LDD ,X
>  CLR $FFDF
>  STD ,X++
>  CMPX #$FEFF
>  BLS LOOP
>  RTS
>  END
>


Another thing that should be added is to set the interrupt masks while
copying.  It would not be good for an interrupt to occur while the ALL RAM
mode is active, but before the portion of ROM containing the service
routine has been fully copied to RAM.


- Darren