Re: Disk ][ cards

[pg@sff.net (Paul Guertin)]

On 10 Dec 1998 13:01 EDT, spec@vax2.concordia.ca (Mitchell Spector)
wrote:
>
>     One important difference has do with the PROMs on early
> Disk II controller cards, which only supports 13 sector disks
> (DOS 3.3 and ProDOS-8 require the 16 sectors PROMs). In all
> my years an Apple II user, I've never seen a controller with
> the original PROMs. They're quite rare as far as I know.

Speaking of early Disk II cards, I would be interested in a
dump (or, better, a disassembly, though I could easily make one 
from the dump) of the 13-sector PROM containing BOOT0. This
data cannot be found anywhere in my reference materials or
on the Web, it seems.

For bonus points, also dump the other PROM, the one which is
not connected to the address and data buses.

Paul Guertin
pg@sff.net