From: Groepaz (groepaz_at_gmx.net)
Date: 2003-03-13 20:26:18
On Thursday 13 March 2003 16:18, MagerValp wrote:
> >>>>> "G" == Groepaz <groepaz@gmx.net> writes:
>
> G> uhm...since the c64 port supports the swithlink (which contains
> G> 6551 aswell) i am surprised it isnt supported in the plus/4
> G> port..... should be pretty trivial to make the driver work there
> G> that is (adjust i/o adress, adjust irq handling, done :=))
>
> I gave it a shot, and IRQ handling was the stumbling block. The Plus/4
> only has a single IRQ line for all its devices, and the kernal
> dispatches IRQs to the corresponding handlers. I wasn't familiar
> enough with the machine to get it right, and there aren't any good
> kernal disassemblies out there...
you could however still write a driver in polling mode..... works nice for
silversurfer so far (i didnt really bother yet doing a real driver with
interupts :=))
gpz
Message was sent through the cbm-hackers mailing list
Archive generated by hypermail 2.1.6.