Re: Z-80 card

[ddoms@gvi.net (Dennis Doms)]

In article <67al9d$6ov$1@darla.visi.com>, nathan@visi.com (Nathan
Mates) wrote:

>In article <3498D35D.F2DB401@thegrid.net>, jmcp  <jmcp@thegrid.net> wrote:
>>I have recently purchased a box of Apple ][ cards, and one of them
>>appears to be a z-80 card.
>>Can any one direct me to, or provide some info on how to use this card?
>
>   For most of them, plug it in, and use a bootdisk designed for that
>card. [And you'll have to provide more identifying markings on the
>card for help on that, though Digital Research has kept a tight reign
>over net.pirates of their OS] Which slot didn't matter to most of the
>cards-- again, *which* Z80 card could help.

Note that some pre-IIe Z-80 Microsoft SoftCards (and clones) won't
work in a IIe; the usual symptom is an erratic "hang". There was a
minor change in the IIe bus that the SoftCard was sensitive to (I
think it's documented in Jim Sather's _Understanding the Apple IIe_).
However, the card will work in a IIgs with the system speed set to
"normal" (at least, mine did :).


===  Dennis Doms  ddoms@gvi.net  //home.gvi.net/~ddoms  ===
  "Things that you held high and told yourself were true
   Lost or changing as the days come down to you..."
  - J. Mitchell, "Down to You", _Court and Spark_