Re: //gs memory card questions

[dempson@actrix.gen.nz (David Empson)]

Supertimer <supertimer@aol.com> wrote:

> Jeff Billman <jbillman@mindspring.com> wrote:
>
> >When I plug the card in I get a ProDOS error saying that I don't have
> >enough memory to load the system.
> 
> That should not happen unless the card is busted.  Older cards can
> deactivate the memory on the ROM 3's motherboard, leaving you with
> only 256k on the card.

First I've heard of such an effect, and it would be rather neat trick,
considering that the FPI/CYA chip doesn't even enable the memory
expansion slot if you are accessing motherboard RAM.

Older cards in a ROM 3 might cause "memory holes", which can confuse the
Memory Manager (thinking it has more RAM than it actually does, and
causing crashes).

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand