mc68010+mc68451 Unix source?

Ken Seefried seefriek at
Tue Oct 4 17:02:10 CDT 2016

From: Al Kossow <aek at>
> the will probably be 68000
> unisoft kernels i've used weren't 010 with the 451

Dumb question...did the '451 have a mechanism to work around the
instruction restart issue in the 68000?  Or was there some other way
that was handled?

> i'll have to dig around for what bits of the 451 kernel i still
> have around. unisoft kept the mmu parts pretty well isolated since
> the did so many hw ports

I'd be grateful.


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