I think a small progress update may be appropriate:

The kernel now runs until asked for root device:


Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

total memory = 16382 KB
avail memory = 12996 KB
using 460 buffers containing 920 KB of memory
 (root)
rn_init: radix functions require max_keylen be set
boot device: <unknown>
root device: 

some notes about this: Kernel sizes are reported in bytes even though that
is not correct on a word-only machine, but internally everything works
much easier in that way. Even if done this way, there are over ~100
changes to the MI code to make it get this far. Most of those changes 
should be possible to eliminate in the future with changes to how the
C compiler works; and a bunch of the changes are just to work-around
compiler bugs :-)

The next things to fix now in the kernel are code for interrupts, page
traps and a real DTE20 device driver.

-- Ragge