On Mon, Apr 18, 2005 at 04:11:02PM -0700, Shawn Jin wrote: [snip]
> However there could be a possible problem when a 2nd critical > interrupt is asserted before the 1st one is served. Then fetching the > VR returns the address for the 2nd interrupt. Of course if UIC can > queue interrupts when calculating VRs, there wouldn't be such a > problem. According to the user manual, UIC indeed queues IRQs based on their priorities, so I guess there shouldn't be any problems. Look at paragraphs titled "Vector generation scenarios". -- Eugene
