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From: tob@inuxm.UUCP (T Burger)
Newsgroups: comp.sys.atari.8bit
Subject: Re: questions
Message-ID: <468@inuxm.UUCP>
Date: Tue, 2-Dec-86 10:08:10 EST
Article-I.D.: inuxm.468
Posted: Tue Dec  2 10:08:10 1986
Date-Received: Tue, 2-Dec-86 23:59:19 EST
References: <7117@topaz.RUTGERS.EDU>
Distribution: net
Organization: AT&T Consumer Products, Indianapolis
Lines: 37

> 
> 2) Does anybody know of a patch to standard atari DOS 2.0 that allows
>    it too work in TRUE double density. I've recently installed a
>    USDoubler and would like very much too have a compatible version
>    of 2.0 to use with it in double density mode. There was a short
>    program in Antic (I believe) about 2 years back that did a patch
>    to 2.0 which allowed it to operate in the 1050's dual density
>    mode (thus freeing early 1050 buyers from horrid dos 3.0), so
>    I'm hoping that the same sort of thing can be done for double
>    density. And while we're at it, how about another patch that
>    allows 2.0 to work at warp speed on a USDoubler drive?
> 

I think you would be much happier with MYDOS instead of a patched DOS 2.
The patches that I have used are not automatic density switching.
	That means if you have double density loaded you can't use single.
Mydos 4.2 also supports a ramdisk if you machine has the memory.
It is 100% compatible with all of your Dos 2 disks.


I have downloaded from Compuserve a mod to the XL/XE OS roms that make them
use the warpspeed of your doubler.  BUT to get the true warpspeed benifits,
you must use the special format provided with Sparta dos.  BUT Sparta DOS
isn't very compatable with your DOS 2 disks.  My solution to this is to use
the Duplicating Technoliges Inc. board.  This gives you full track buffering,
double density or single density operation.  And if you have the warp mod
on your OS roms you get almost the full warp speed from standard format disks.
during read operations and normal speed during write operations.

The only problem I have found with this setup is that some protected
software won't load with the DTI board due to the full track buffering.
I keep my trusty 810 around for that.


Wish you luck

Ted Burger