[Coco] Help with MacMAME (Tony Schountz)

[William Astle]

DOS is *Disk Extended Basic* 1.1 (which will show 2.1 on the Coco 3). 
That needs a functioning Disk Basic 1.1 ROM. If the startup message only 
says "Extended Color Basic", then the Disk ROM wasn't detected.

On 2025-03-24 14:30, Tony Schountz via Coco wrote:
> Oh, right. The neurons are still dusty. Isn't that in the coco3.rom?
> 
> On Mon, Mar 24, 2025 at 9:28 PM Bruce W. Calkins via Coco <
> coco at maltedmedia.com> wrote:
> 
>> "DOS" is an Extended Disk Basic (second version) command.
>>
>> Bruce W.
>>
>>
>> On 3/24/25 16:08, Tony Schountz via Coco wrote:
>>> Unfortunately, same problem.
>>>
>>> Now I'm trying XRoar and I now get the expected "Extended Color Basic..."
>>> startup green screen and I seem to be able to attach my OS9 boot disk
>>> (original from Radio Shack). But when I type "DOS" I get "?SN ERROR"
>>> followed by "OK". Perhaps the disk image is not attaching? It's named
>>> OS9BOOT.DSK and is 161k in size, so I am sure it's the original
>>> out-of-the-box 35 track, single sided floppy image.
>>>
>>
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>>
>