[Coco] NitrOS9 build errors

Tormod Volden lists.tormod at gmail.com
Tue Jan 21 14:59:47 EST 2014


On Tue, Jan 21, 2014 at 6:31 AM, Aaron Wolfe wrote:
> On Jan 21, 2014 12:20 AM, "Greg Law" wrote:
>>
>> 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.

Greg, that's very interesting and we should keep it mind. That makes
much sense in theory.

>
> I dont know enough about the emulators and standards to agree or disagree,
> but in working on DW I do know that a vast majority of disk images one will
> find online are named something.dsk, and very few have a JVC header.
> Almost all are just linear sector data.  In fact, I never encountered a JVC
> style disk "in the wild" and had to go specifically looking for one to test
> with when I added JVC support.  I am not sure if the nitros9 project would
> want to deviate from this even if it is the "correct" thing to do.

But reality bites back :)

Anyway, I won't change any of this for 3.3.0. But it could be added to
the feature tracker if the discussion proves it valuable.

Tormod



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