Re: [GXemul-users] Algor emulation and DEC 21143 Support

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

Hi Anders!

Thanks for a quick response.

On Sat, 2008-04-12 at 16:01 +0200, Anders Gavare wrote:

> On Sat, 2008-04-12 at 10:46 +0100, Robin Randhawa wrote:
> > I'm playing with the algor emulation in GXEmul 0.4.3 in my spare time.
> > ..
> > Before I dig into this, I was wondering if someone could tell me if
> > networking is known to work with the p5064 at all ?
> 
> Short answer: No.
> Longer: I remember experimenting with it, and I also remember commenting
> it out since I never got it to work. I don't recall exactly what the
> problem was. Networking has never officially worked with the p5064
> emulation mode.

Ok.

> Because of the hack-ish way PCI devices are used in GXemul, you need to
> have some glue in src/devices/bus_pci.c, in the PCIINIT(dec21143)
> function. The pci_int_line, isa, and irq variables need to be set to the
> correct values, which may or may not be values that are connected to the
> real world. They may themselves just be hack implementations. :-/

I see. That helps clear things up significantly. Thanks.

> Interestingly, GXemul 0.4.3 actually _has_ an entry for Algor:
> 
>         case MACHINE_ALGOR:
>                 /*  TODO  */
>                 irq = 8 + 7;
>                 pci_int_line = 0x407;
>                 break;
> 
> but this was removed some time after 0.4.3, most likely because it never
> worked.

Fine. That sort of gives me enough information to play with.

Thanks a bunch!
Robin