So it seems this software has been kicking around. The 2.0 version appears to be identical to this one. There is a IIe diagnostic v2.0 and 2.1 there. Knowing this works on a IIe as well, I went back out to Asimov. In MAME I get a ProDOS error 46 right after it appears to identify the machine as a IIgs. But I haven't found the magical combination to boot to see what happens. There are references to the IIgs in the files as well. It identifies if booted on a II or II+ and says it is not compatible. It also alters the tests available and even draws the menu differently. It changes the header on the screens to reflect that. It will also run on IIe (both original and enhanced, you have to downgrade ProDOS on this image to boot unenhanced). So I did some testing with MAME as I only have //c and IIgs myself. I looked at some of the files in Cider Press and found references to other Apple II computers. So I wonder why this rom is listed as not being able to tell the status of the card.Īctually, this is more than just a //c diagnostic. And it did pass the extended memory test. I do have an a2heaven 1mb expansion card installed. It also says 'memory card status: not supported with this rom'. Maybe I'll dig it out tomorrow and see how this reports the rom version on that. So maybe Apple numbered them differently than what people generally go by? My rom 255 is currently packed up. But if I do a 'print peek(64447)', it does infact return a 4. It says 'current rom version: 06 (original IIc ROM)'. This version lets you skip the loop back test. It also won't let you get very far without a serial loop back cable. The other one runs several tests automatically before even giving you any options. But it gives you a nice menu where you can select tests. This one seems to have many of the same tests as the 255 one.

The only actual Apple diag for the //c on Asimov seems to only run on 255 rom machines.

Apple serial number mystery solved by