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Re: NDapple: status

Subject: Re: NDapple: status
From: mjmahon@aol.com (Michael J. Mahon)
Date: 22 Sep 2002 20:00:50 GMT
Newsgroups: comp.sys.apple2
Organization: AOL http://www.aol.com
References: <uos4u7nih3rcc0@corp.supernews.com>
Xref: archiver1.google.com comp.sys.apple2:23033

Mike Guidero wrote:

>Since the softcard contains no ROM, and is activated by a write to Cx00 
>space of the slot the card is in, and because CP/M detects the card by 
>simply writing to every Cx00 space until the Z80 starts, you can probably 
>just look for writes to any slot, no matter what ROM it contains.
>
>I'm not aware of any other cards that use the Cx00 (not counting C800 space) 
>for I/O, and I'm sure the mouse card doesn't.

Some cards implement RAM in the $C8xx space.

-michael

Check out 8-bit Apple sound that will amaze you on my
Home page:  http://members.aol.com/MJMahon/

References:
- Re: NDapple: status
  - From: Mike Guidero <mike@bogus.net>

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