[Coco] Simple coco 2 memory test?

[Darren A]

On 4/8/11, Aaron Wolfe wrote:
>
> It's been a while since I looked at the actual code, but I believe the
> checksum is a running sum done on the fly as the bytes are read from
> the bitbanger, not something done in a separate pass over the sector
> after its been written to memory.  If so, that would pretty much
> eliminate ram as the source of the problem.  Maybe someone can verify
> or deny this :)
>

Yes.  The checksum computation in the bit banger code is performed as
each byte is shifted into one of the accumulators. It never reads the
data back from RAM.

Darren