I've put a copy of Bruce Evans's as86/ld86 sources (ftp'ed from
ftp.freebsd.org) into the same directory with the other dosemu-on-netbsd
stuff in ftp://sipb.mit.edu/pub/netbsd/dosemu/bcc.tar.gz 

I've not actually tried using these versions of the tools yet--that's
for tonight :).

==John