[Open-graphics] Video interrupt enable/disable

[Timothy Normand Miller]

On 5/5/07, James Richard Tyrer <tyrerj at acm.org> wrote:

> What your 'analysis' fails to consider is that, if shared, that the
> 'sync' interrupt cannot be serviced until service of the 'service'
> interrupt has completed to the point that the interrupt has been cleared
>   (in hardware) and interrupt is enabled.  Also not considered is that
> these two interrupts should have different priorities.

All of our interrupt conditions are latched and held until explicitly
cleared.  If some other ISR were to get ahead of us, we would not miss
our interrupt.


-- 
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Open Graphics Project