[Coco] NitrOS9 build errors

[Greg Law]

Just to stick another monkey wrench into the works, these should have a .os9 
extension if they are standard OS-9/NitrOS-9 images without any header 
information. Most of the emulators interpret this extension to mean the 
disks don't have any header information and derive the geometry from LSN 0 
(the first 256 bytes of the image). Any images with a .dsk extension should 
have the JVC header, but this extension shouldn't be used for OS-9/NitrOS-9 
disks.

-----Original Message----- 
From: Tormod Volden
Sent: Monday, January 20, 2014 6:48 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] NitrOS9 build errors

On Mon, Jan 20, 2014 at 9:49 AM, Ciaran Anscomb wrote:
>
> The biggest issue for any emulator is the lack of JVC header information
> - without this, it's impossible to tell the difference between a 40T
> double-sided disk and an 80T single-sided one.

And that was all that was needed to make
nos96809l1v030209d64_40d_1.dsk and nos96809l1v030209d64_80d.dsk boot
in XRoar :)
I prepended a 0x12 0x02 JVC header. Thanks for the hint.

I had nos96809l1v030209d64_40s_1.dsk working fine, but wondered if the
double side code was broken...

Thanks,
Tormod

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