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From: sharakan@godot.think.com (Eric Sharakan)
Newsgroups: comp.sys.atari.8bit
Subject: Re: questions
Message-ID: <392@think.COM>
Date: Fri, 19-Dec-86 11:31:33 EST
Article-I.D.: think.392
Posted: Fri Dec 19 11:31:33 1986
Date-Received: Sat, 20-Dec-86 00:27:10 EST
References: <457@rayssd.RAY.COM>
Sender: news@think.COM
Reply-To: sharakan@godot.think.com.UUCP (Eric Sharakan)
Organization: Thinking Machines Corporation, Cambridge, MA
Lines: 28
Keywords: double-density, DOS 2.0

I tried creating a double-density DOS2.0 using the program posted and had no
luck.  I have a 800XL with a 1050 drive w/U.S. Doubler installed.  I made
the following changes to the program to allow it to work with one drive:

840 POKE 4881,DOUBLE:X=USR(ADR(DINT$))
            ^
880 XIO 254,#1,0,0,"D1:*.*"
            ^^^      ^
980 OPEN #2,WRT,0,"D1:DOS.SYS"
                    ^
990 CLOSE #2:END
            ^^^^
(The '#1' in line 880 is necessary Atari BASIC syntax).  These changes
should have created a double density disk with a DOS.SYS on it.  Rather than
using gets/puts to copy DUP.SYS, I simply went to DOS and used the 'O'
option to copy it over.  (I don't know if I would have been able to do this
if the program actually worked).

What I got was a single density disk with a DOS that still did not support
double density.  The U.S Doubler in my 1050 is supposedly compatible with
other double density drives on the market.

Any help from the Net would be most appreciated.  Thanks in advance.
--
Eric Sharakan, Thinking Machines Corporation, Cambridge, Ma., 02142
AT&T, et. al.: (617) 876-1111
ARPA: SHARAKAN@THINK.COM
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