[En-Nut-Discussion] irqstack.h in cvs

[William Baker]

On Sept 17, irqstack.h changed in the CVS on sourceforge.  In 
particular, it went from pushing a bunch of registers to only pushing two.

I don't understand how this works.  It looks to me like it is only 
changing the stack, but no longer preserving registers.  Can anyone 
explain why we don't need to save a complete set of registers on the irq 
stack?

bbaker