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From: sipples%husc4@HARVARD.HARVARD.EDU
Newsgroups: comp.sys.apple
Subject: Re:  Extra memory accessability...
Message-ID: <8611190200.AA06680@ucbvax.Berkeley.EDU>
Date: Tue, 18-Nov-86 18:24:29 EST
Article-I.D.: ucbvax.8611190200.AA06680
Posted: Tue Nov 18 18:24:29 1986
Date-Received: Tue, 18-Nov-86 23:47:26 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 37

Steven,

You are quite right when you say that the Applesoft BASIC built-in to
the Apple //c cannot access the extra 64K RAM.  In fact, it has much less
than 64K free memory available.

In many cases, this extra RAM is used as a RAM disk.  ProDOS automatically
assigns the extra RAM to the a volume called "/RAM."  However, there are
some application programs which use the auxiliary memory to store programs/
data, most notably AppleWorks.

If you prefer to use Applesoft, try contacting a company like Beagle
Brothers.  They market several utilities which utilize the extra RAM, one
of which will let you store arrays and variables.

Other programming languages may help, but you'd have to consult the
software companies individually.

Additional memory boards can expand the Apple //c's RAM disk storage, and
also make available more memory for the programs which can take advantage
of it.  These RAM boards, like Applied Engineering's versions, come with
the appropriate utilities to operate as RAM disks or with AppleWorks.

If you'd like to learn the intricacies of how to access the auxiliary
RAM on the machine language level, consult some of the excellent techni-
cal reference manuals on the subject.  Apple's manuals can be ordered at
most bookstores.

Hope this information helps!  If you need additional tips, please do not
hesitate to contact me at the addresses below.

Timothy F. Sipples

BITNET: sipples@harvunxu.bitnet
        sipples@harvsc4.bitnet (?)
ARPA: sipples@husc4.harvard.edu
UUCP: seismo!harvard!husc4!sipples