Re: CPM and SSC

[pausch@saaf.se (Paul Schlyter)]

In article <046dndugPYT_j-XZRVn-jg@comcast.com>,
Michael J. Mahon <mjmahon@aol.com> wrote:
>Alex Freed wrote:
>> 
>> I have a z80 CPM card and a Super Serial Card. If CPM is started with 
>> the SSC in slot 3, there is no output to the normal video screen, so it 
>> looks like the output is redirected to the serial port, except the 
>> terminal connected to it doesn't show anything. Doesn't look like a 
>> wrong baud rate either.
>> 
>> The SoftCard manual doesn't show SSC among supported hardware. So the 
>> questions are:
>> 
>> 1. Is there a patch to CPM to support SSC?
>> 2. Am I just missing some switch setting?
>
>You don't mention which model of Apple II you are using.  In anything
>later than a ][+, slot 3 is "reserved" for onboard video, and ROM on
>a card in slot 3 cannot be used.

SoftCard CP/M doesn't use the ROM on the serial card.  It accesses
the hardware directly, with Z80 code.

Perhaps it's an older version of SoftCard CP/M which doesn't recognize
the SSC?

>Does CP/M boot correctly and show up on the screen when the SSC is
>removed from the machine?
>
>-michael
>
>Parallel computing for 8-bit Apple II's!
>Home page:  http://members.aol.com/MJMahon/
>
>"The wastebasket is our most important design
>tool--and it is seriously underused."


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