[Coco] Run program by typing DOS

[Darren A]

On 3/12/09, Steven Hirsch wrote:
>
> I'm a little confused about those .dsk files.  Are these supposed to be
> physical images of CoCo floppy?  When I look at the files, I see basically
> garbage: pages full of 0ffh and a few blocks of 4eh sprinkled in between.
>
--

Those sound like disk image files that use the DMK format.  The blocks
of $FF are unused sectors (formatting initializes sector data to $FF).
 The $4E bytes are used in gaps between the sector data and ID fields.
  Following a run of $4E bytes you should see a run of $00 bytes, then
three bytes of $A1 and finally an $FE or $FB.

Darren