jmcneill@invisible.ca said:
> The compatible interface is an ISA interface

I really don't want to get into pointless sophistry here,
but the interface is just a set of registers mapped into
the address space.
The "PC platform" is (among other details of course) defined by
certain facilities mapped to well-known addresses. One could
even call that "ISA" (as the Architecture), but there is no
technical need to connect this to some ISA bus.

> .. at which point, we will want a separate legacy-free PC port

If we seperate what is integral component of the PC architecture now
(hmm - "architecture" is certainly not the right word for that mess)
from optional ISA bus specific things we should be able to get
that without too much effort.

best regards
Matthias




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