Re: [elysium-developers] NE2000 specification

[Adam L. <ag...@li...>]

On Wed, Feb 23, 2000 at 01:50:39PM +0100, Kasper Verdich Lund wrote:
> A specification of NE2000 (among other interesting things) can be found
> here:=20
> http://www.acm.uiuc.edu/sigops/rsrc/
This looks quite good

sys_irq_hook (1, cr3, _irq4_wrapper, irq_stack);

But how do you hook interrupts? The kernel calls _process_run with cr3, and=
 so
on as above. But then what do you do? You can't ret in _irq4_wrapper because
the kernel installed a new stack, so there is no return address. You can't
do a prolog because it isn't your quantum and I don't think you should yeild
because it's an interrupt and you'll confuse cpu.c.

AGL

--=20
Smoking is one of the leading causes of statistics.