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From: binder@dosadi.DEC (No matter where you go, there you are.)
Newsgroups: net.micro.apple
Subject: Re: Re: Booting ProDOS on an APPLE ][+
Message-ID: <1648@decwrl.UUCP>
Date: Mon, 9-Dec-85 10:03:06 EST
Article-I.D.: decwrl.1648
Posted: Mon Dec  9 10:03:06 1985
Date-Received: Wed, 11-Dec-85 04:04:16 EST
Sender: daemon@decwrl.UUCP
Organization: Digital Equipment Corporation
Lines: 28

Subject: Re: Re: prodos on an apple ][+ (old question

Another revisiting of this issue...

>> In the PROM, my version of ProDos 1.0.1 looks for the words
>> "Apple ][", and in the disk drive it looks for a bit pattern in the
>> drive controller card to make sure it is an Apple card.
			  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> While looking at the disk controller it  determins if there is a ProFile
>> or if it is a 5 1/2" disk drive.
 
> I have booted ProDos on non-Apple disk controller cards, so part of this
> claim is untrue.  I suspect ProDos is just trying to figure out whether
> it has a disk controller, and if so, what type.

Dunno about the disk card check, as mine is an Apple.  But the test for 
modified ROMs is indeed probably restricted to a test for the wprd "APPLE" in
the right place; my motherboard's ROMs have been modified to eliminate the
lowercase foldover.  The first pass I made had "APPLE ][" changed, and ProDOS
wouldn't boot.  I changed that text back, and ProDOS came up. 

Cheers,
Dick Binder   (The Stainless Steel Rat)

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Mon 9-Dec-1985 08:55 Eastern Standard Time