Subject: Re: ProDOS 8 Drivers for IDE Drives
Path: lobby!newstf02.news.aol.com!portc01.blue.aol.com!verio.MISMATCH!iad-peer.news.verio.net!news.verio.net!dfw-read.news.verio.net.POSTED!not-for-mail
Message-ID: <3957D866.76B1FD63@dcnet2000.com>
From: Phoenyx <quazar@dcnet2000.com>
X-Mailer: Mozilla 4.7 [en] (X11; I; Linux 2.2.14-15 i586)
X-Accept-Language: en
MIME-Version: 1.0
Newsgroups: comp.sys.apple2
References: <8iuir9$5ic$1@nnrp1.deja.com> <395794b8.246634968@news> <8j8f9g$u0b$1@nnrp1.deja.com>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Lines: 33
Date: Mon, 26 Jun 2000 17:25:42 -0500
NNTP-Posting-Host: 204.2.54.216
X-Complaints-To: abuse@verio.net
X-Trace: dfw-read.news.verio.net 962058186 204.2.54.216 (Mon, 26 Jun 2000 22:23:06 GMT)
NNTP-Posting-Date: Mon, 26 Jun 2000 22:23:06 GMT
Organization: Verio



You might also try looking for 'Exploring GSOS and Prodos 8' by
Gary Little. This book explains about drivers and how they
interface with Prodos. There are two ways to handle this. As
noted, you could add a ROM with the driver encoded in it along
with the standard II interface. Besides the Prodos info, you
will also need the info for slot cards.

Another option with block devices is to design a smart port
device. IIRC, the 3.5 unidisk falls in this category. With this
method and an external device, practically every II could use
it. Even the 2c. Now, this would be worth selling.

Alternatively, create a simple I/O for the connector and add a
driver that loads at boot time. This is less preferable as P8
doesn't have any extra room for drivers that work with all P8
applications. To get around this, you would have to replace the
/RAM driver as many ram cards do or replace the slot 6 driver
similar to the Apple Oasis SLINK program. Neither of these are
elegant solutions, but may be the only choice if you have no way
to make a ROM chip.

-- 

Thank you for your time and interest. I hope it was helpful
or at least interesting.

Phoenyx,

Apple2 user since March 1984

Links to Phoenyx's pages:
preferred..... http://zip.to/Phoenyx_A2
alternate..... http://www.tinyangeldesigns.com/Apple2