[Coco] Latest fixed copy of MacMAME

[Barry Nelson]

> 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.