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Re: CCS 7811 Math Coprocessor



mdj wrote:
> A kindly gentleman enriched my Apple II collection recently with (yet
> another) Apple II+ and a collection of expansion cards including a CCS
> A/D Converter and a 7811 Math Copro, complete with original
> documentation :-D
> 
> Unfortunately I don't have the software for the card, and from the
> docs it seems it would only work in software mode on a Apple II, not a
> II+, due to the requirement of a patched Applesoft.

If you search csa2 in Google groups for CCS7811 you
will find three threads where this card was discussed.
Search for 9511 and you will find more.  The manual
is posted in the csa2 Gmail account; you can see if it
matches what you have.  The patched Applesoft may have
been provided as a replacement E8 ROM.  Does the Apple
II+ have a non-Apple ROM?  That ROM may also be
installed in a CCS 7114 ROM card in slot 0.

--
Paul R. Santa-Maria
Temperance, Michigan USA