[Coco] Latest fixed copy of MacMAME

[Robert Gault]

Barry Nelson wrote:
>> Guillaume Major
>> Thu Oct 19 17:56:39 EDT 2017
>>
>> Thanks Barry!
>>
>> I think there might still be an issue with the floppy drinve in the latest
>> version of MAME. Space Quest 1 and Space Quest 2 doesn't seem to work
>> anymore. I'm using MAME 0.189. Both games boot fine in NitrOS-9 but they
>> lock up right after the title screen. I have tested the disk images on real
>> hardware and VCC and they work as expected. The becker port version works
>> fine in MAME so it looks like a floppy drive emulation issue.
>>
>> Can anyone confirm this bug?
>>
>> You can get Space Quest 1 and 2 from the Color Computer Archive if you don't
>> already have them:
>> http://www.colorcomputerarchive.com/search?q=space+quest <http://www.colorcomputerarchive.com/search?q=space+quest>
>>
>> Thanks,
>> Guillaume
> It looks like those disks are missing the JVC header bytes. I added two bytes, $12 $02, to the beginning of the images for Space Quest 1 and they now work with MacMAME 0.186 patch 2. I will test the new disk images with VCC and a physical CoCo and send them to the archive if they work as expected. I believe MAME no longer supports the headerless .os9 disk format. I have not compiled MAME version 0.189 yet, so I do not know if that has another issue or not.
>
>

MESS/MAME generally never supported and OS-9 disk which had a .dsk extension. All OS-9 disks should 
use the .os9 extension to ensure proper functioning with MESS/MAME.

Robert