eeh@netbsd.org writes:
> | What better way to exercise the portability of NetBSD?  We've got 32-bit
> | and 64-bit archictures sorted.  Certainly there would be some challenges
> | left with 36-bit support, no?  Given the availability of several PDP-10
> | emulators and the work on GCC, I don't see why it couldn't be done.
> Lack of a real MMU is probably going to cause problems, especially since
> UBC requires MMU functionality.

KL10 and later PDP-10 processors all have real MMUs.  Many PDP-10
operating systems made heavy use of virtual memory.

-- 
Lars Brinkhoff          http://lars.nocrew.org/     Linux, GCC, PDP-10,
Brinkhoff Consulting    http://www.brinkhoff.se/    HTTP programming