[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Auxiliary Memory: ProDOS TN 21+26 leave a question unanswered.
- Subject: Re: Auxiliary Memory: ProDOS TN 21+26 leave a question unanswered.
- From: mattd@apple.com (Matt Deatherage)
- Date: Mon, 7 Dec 1992 20:04:40 GMT
- Followup-to: comp.sys.apple2
- Newsgroups: comp.sys.apple2
- Organization: Developer Support Center, Apple Computer, Inc.
- References: <1992Dec5.235622.28252@cs.uow.edu.au>
- Sender: news@gallant.apple.com
In article <1992Dec5.235622.28252@cs.uow.edu.au>, david@cs.uow.edu.au
(David E A Wilson) wrote:
> If an application finds that /RAM is installed but it does not have
> a unit number of the form %1011xx11 then how can it determine if
> it may use the Auxiliary Language Card?
> --
> David Wilson +61 42 213802 voice, +61 42 213262 fax
> Dept Comp Sci, Uni of Wollongong david@cs.uow.edu.au
The convention with %1011xx11 is one adopted by third parties who have
auxiliary-slot cards lots bigger than 64K, it's supposed to tell those
who know how to look that you don't have to disconnect the device to use
the auxiliary 64K. Because it's a third-party convention, there's not
real hard documentation available.
If you find /RAM and it doesn't use one of those unit numbers, the only
safe thing to do is disconnect it before using the alternate 64K.
============================================================================
Matt Deatherage, Developer Support Center, Apple Computer, Inc.
Personal mail only -- please POST technical questions, questions about
Apple and its policies, where to find documents and related inquiries.
The opinions I express don't represent Apple, which makes us both happy.
============================================================================