[Coco] Double sided disk usage with the Vavasour orCollyer Coco3emulators?

Stephen H. Fischer SFischer1 at Mindspring.com
Mon Nov 29 15:11:12 EST 2010


Yes the "complete Collyer web site is on RTSI.". I also have a separate
capture somewhere including the source if it is not in the RTSI file.

I remember that 80 Track (And others) OS-9 diskettes have an incorrect
parameter describing the diskette format quite often.

I did not have this problem as having both 5-1/4" and 3.5" 80 Track double
sided disks and all the other flavors forced me to have the disks described
correctly on both my real CoCo and the Collyer emulator.

Collyer's 6309 version has some important bug fixes for Jeffs utilities.

I could be more useful if I could remember where my OS-9 manual is, I think
I added some notes in it or somewhere.

DECB can do 40 tracks single sided with a poke I remember but not 80 tracks.


P.S. http://yaccs.info/PROGRAMAS/XFILER/xfiler.html  has a bad link for the 
download, it needs to be found and saved on RTSI or ....

----- Original Message ----- 
From: "Robert Gault" <robert.gault at att.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Sunday, November 28, 2010 7:45 PM
Subject: Re: [Coco] Double sided disk usage with the Vavasour orCollyer

> Little John wrote:
>> In any event, I have been able to get David Keils's DOS-based emulators
>> to work with 80 track diskettes in the past, but I haven't tried it with
>> the other two you mention. When I get this DOS machine "debugged", I'll
>> see what I can do with Jeff's emulator and post back.
>> -JohnT-
> I believe both can be found on RTSI certainly the complete Collyer web
> site is on RTSI. The JVC can be found at
> http://www.vavasour.ca/jeff/trs80.html#coco3
> --
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