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Lisa Error 45
Posted by: cheesestraws on 2020-05-17 15:28:02
Was trying to get some code running on my Lisa and got this:

61144710806__9370B533-62E0-47F5-95AB-7788AEF969B6.JPG

Anyone know what it means?  Is there a document with a list of these somewhere?  I googled a bit but obviously missed the keyword.
Posted by: fri0701 on 2020-05-17 16:32:38
Here's a link to the table of startup error codes: https://lisafaq.sunder.net/single.html#lisafaq-hw-rom_error_codes

Looks like a Bus error (not entirely sure what that entails, but maybe a poke around the Lisa boot ROM source would get you somewhere?)
Posted by: sunder on 2020-05-17 17:18:41
Bus error means you tried to access memory that does not exist or belong to you or the MMU hasn't mapped. It's equivalent to the unix segfault.
Posted by: cheesestraws on 2020-05-18 03:22:12
Here's a link to the table of startup error codes
You can tell it was late at night, can't you.  I really have no excuse for not looking at the FAQ...

Bus error means you tried to access memory that does not exist
That would make sense.  There's a pointer in this code where I'm not sure where it ought to be initialised (I don't think anyone has tried to get this building for a very long time, partly because there seems to be a critical file missing from the source tree and nobody's noticed, so a little reconstruction is being required)
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