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On 6/8/24 9:23 PM, Lawrence D'Oliveiro wrote:
> The Motorola 680x0 family was I think properly virtualizable in this
> sense. Or maybe the 68020 and 68030 were, but the 68040 was. I think the
> Motorola engineers working on the ’040 asked if any customers were
> interested in preserving the self-virtualization feature, and nobody
> seemed to care.

The 68010 made the move from SR instruction privileged.

CP/M-68K V1.2 added support for the 68010. The exception handler would 
patch the code to change a move from SR into a move from CCR.


-- 
http://davesrocketworks.com
David Schultz