[Coco] MAME problems .186

[Michael R. Furman]

Tim,

You realize the missing code makes it impossible to use MESS/MAME to run Nitros9 without modifying all of the disk images.

I’ve just submitted an issue on GitHub:


coco*: Unable to boot Nitros9 disk images from official distribution site #2405
https://github.com/mamedev/mame/issues/2405


—

Michael R. Furman
Email: n6il at ocs.net
Phone: +1 (408) 480-5865


> On Jun 21, 2017, at 7:38 AM, tim lindner <tlindner at macmess.org> wrote:
> 
> 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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