Does anyone know what a Macintosh 512K Sad-Mac error code of 0000DB indicates? I believe this would be a class-code of 00, but I cant find any documentation online about this type of error. I am debugging a processor emulator in the 68000 socket, so I am sure that the motherboard is good.
Anonymous
User login
Please support the defense of Ukraine.
Direct or via Unclutter App
Active forum topics
Recent content
Navigation
No Ads.
No Trackers.
No Social Media.
All Content Locally Hosted.
Built on Free Software.
We have complied with zero government requests for information.
I can't 100% reject it, but it could be a problem with the memory chips. These chips are notoriously unreliable. Unfortunately they are soldered on the board.... I encountered this when I rebuilt my Macintosh 128k.
It is a known-good motherboard, so my 68000 drop-in emulator is causing this error. The question is if anyone has seen this error class-code before or know what it could indicate?
That's not a documented class code, but if you're making an emulator, I'm sure you already know that. Sad Mac codes are register values, is that right? Is it possible it's not getting to the point that it's loading a value in the register?
I agree. I just thought I would ask around to see if code 00 means a test failed to a motherboard IC like the IWM or VIA. Looks like this is not the case, so Ill need to debug why the eror class code is not being updated.
Following up with some progress. Still a ways to go! :)
MCL68+ Youtube Video