Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!microsoft!brianw
From: brianw@microsoft.UUCP (Brian WILLOUGHBY)
Newsgroups: comp.sys.apple
Subject: Re: Memory upgrades for a ][+?
Summary: 1 Meg Expanded Memory and AE TransWarp
Message-ID: <10042@microsoft.UUCP>
Date: 22 Dec 89 02:13:27 GMT
References: <9419@batcomputer.tn.cornell.edu>
Reply-To: brianw@microsoft.UUCP (Brian Willoughby)
Organization: Microsoft Corp., Redmond WA
Lines: 31

In article <9419@batcomputer.tn.cornell.edu> mha@tcgould.tn.cornell.edu (Mark H. Anbinder) writes:
>I need to know what upgrade paths there are for an owner of an Apple ][+
>that has 64K.  I'm fairly certain it can't be upgraded to a //e, but I
>have no idea what options there are for adding memory or various other
>forms of functionality.

I responded to Mark through email, but I wanted to use this opportunity to
mention a bug I discovered in the interaction between two such ][+
enhancements:

The SMT 1 Meg Expansion card ($99 unpopulated, through Computer Direct) is
fully compatible with the Apple 1 Meg card, and allows a speedy RAM disk for
the Plus.

Unfortunately, when combined with the original TransWarp (which also
significantly speeds up the Plus), neither the Apple or SMT brand of RAMdisk
is functional.

I tracked down the problem and developed a fix involving burning a new EPROM.
Without getting into details, the "fault" really isn't AE's or Apple's
(or SMT's).  I made changes to the core routines of the RAMdisk transfer
routines which allow both cards to function together on a ][ Plus.  I'm just
wondering what the legalities are concerning allowing others to benefit from my
modifications of this ROM.  How many folks out there have a ][ Plus with both
the 1 Meg card AND the TransWarp, anyway?

Brian Willoughby
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