[Coco] on-topic: 64K mode question

Arthur Flexser flexser at fiu.edu
Thu Jan 15 16:28:00 EST 2004


On Thu, 15 Jan 2004, Torsten Dittel wrote:

> Hi,
> I just wondered what happens if I press "Reset" on a real CoCo which is
> in "64K-all-RAM mode". Will it return to the
> "32K-lower-RAM-32K-upper-ROM mode" forced by hardware or is it the reset
> handler in BASIC which is resetting the SAM by POKEing the corresponding
> addresses?
> 
> Regards,
> Torsten
> 

Sure will, unless you patch a poke to $FFDF into the reset routine.  A
reset resets all the SAM registers through hardware.  If you're running in
double speed mode, that too will revert, for example.

Art





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