[Coco] MAME problems .186

tim lindner tlindner at macmess.org
Wed Jun 21 10:38:56 EDT 2017


On Wed, Jun 21, 2017 at 7:18 AM, CoCo Demus <retrocanada76 at gmail.com> wrote:
> What about double sided disks ? I can only boot or run OS-9 from single
> sided disks.

We used to have code in MAME that detected an LSN0 and set the
double-sided attribute automatically.

It was removed by someone else.

So the way forward is to use a JVC header. Add two bytes to a disk
image to set it to be double sided (use a hex editor):

0x12 and 0x02

(18 and 2)

Now here is another problem. MAME 0.186 has a bug when you set the
sides to 2. It was causing MAME to ignore the disk.

It has already been fixed, and will be in MAME 0.187.




-- 
--
tim lindner

"Proper User Policy apparently means Simon Says."


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