[GXemul-users] Algor emulation and DEC 21143 Support

[Robin R. <rob...@gm...>]

Greetings folks.

I'm playing with the algor emulation in GXEmul 0.4.3 in my spare time.
My aim is to get the p4032 emulation up to a stage where I can get pmon
booting unmodified. So far I have been able to get NetBSD 3.1 going with
the p4032 but without networking. I've been using the p5064 as a
baseline.

I find that the DEC 21143's addition to the PCI Bus has been commented
out in machine_algor.c. Uncommenting it doesn't seem to get the device
into an usable shape however. For testing purposes I've been using the
p5064 emulation which I've tried not to mod in the hope that it behaves
as expected.

Firstly the irq_path setup seems invalid so the emulation bombs out
early. Even if I prevent the INTERRUPT_CONNECT() for the 21143, things
don't quite work alright.

Before I dig into this, I was wondering if someone could tell me if
networking is known to work with the p5064 at all ?

Cheers and thanks for a great project.
Robin