> just to clarify.  a 3/80 is a 68030, using the 030's mmu.

I'll clarify a bit further. The 3/80 is a significantly different
machine from the 3/60. Since the mmu is onchip in the 68030, but
since sun's kernel relies heavily on virtual-dma they had to supply
a way to do so. enter a mini mmu called the io-mapper, which is
similar in concept to the unibus mapper mmu.

> theo's machine is a one of a kind construction.

it's seem a lot of after-factory solder.

------------------------------------------------------------------------------