Re: [hatari-devel] 68030 undocumented instruction

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Thomas Huth schrieb:

Am Sat, 25 Jan 2025 23:28:01 +0100
schrieb Adam Klobukowski <adamklobukowski@xxxxxxxxx>:

has been found:
https://www.downtowndougbrown.com/2025/01/the-invalid-68030-instruction-that-accidentally-allowed-the-mac-classic-ii-to-successfully-boot-up/

Thanks for the pointer, that's an interesting article! CC:-ing Toni, maybe
he's interested in having a look for improving the emulation of the CAS
instruction.
Imho, there is a lot of undefined/undocumented behavior, with regards to
the second word of the instruction in the 68030. See, for example, this
thread I stated about a year ago:
https://www.atari-forum.com/viewtopic.php?t=43642. It would be a
herculean task to emulate all reserved bits correctly

Regards
Christian



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