[Coco] So, I have this NitrOS-9 disk...

[Darren A]

On Fri, Oct 11, 2013 at 6:05 PM, Juan Castro wrote:

> I am curious about what could be the cause for such behavior and why DECB
> did work even with the slow RAMs. Maybe it's the sector read/write loop?
> The code in DECB does something totally non-kosher with the NMI in order to
> work with the 6809's slow clock.
>
>
Maybe it's not the speed of the RAM, but a case of one or more half-bad RAM
chips.  DECB normally uses only the lower 32K of RAM while OS9 uses all 64K.

Darren