Hi.,
I compiled 4.4BSD for hp300, original main target architecture.
That is cross compiled on NetBSD 1.1/sun3, m68k a.out environment.
I have no hp300 hardware, nor emulator software, so, NOT TESTED at all.
If you would try booting it, below might be useful:
https://docs.freebsd.org/44doc/smm/01.setup/paper.html
Subject: One more arch 4.4BSD binary set, luna68k on nono OMRON LUNA emulator
Date: Wed, 19 Jan 2022 23:29:04 +0900 (JST)
One of architechture supported by 4.4BSD, luna68k's compiled binary is
now available.
http://www.netside.co.jp/~mochid/comp/bsd44-build/
luna68k is OMRON LUNA, m68k cpu workstation. This binary set works on
"nono" emulator software.
http://www.pastel-flower.jp/~isaki/nono/
It's author, Isaki-san have done some minor modification for 4.4BSD,
binary set for luna68k run rather well.
OMRON, already dropped thier workstation products. LUNA-I, LUNA-II
equipped with m68k, same CPU as CSRG's main target arch hp300.
So userland programs may binary compatible.
-mochid