Since when did a x86 system have more than 16 interrupts?!?!?
Posted on 2004-08-25
I'm looking through my device settings for one of my cards, and Windows XP reports that it's on interrupt 16! I know that a standard x86 computer used to have interrupts 0-15 for hardware control...
Did they make changes when the Pentium 4 came out that allowed for more than 16 hardware interrupts? Or is this just some smoke and mirror tactics done by Microsoft?
I even used a PCI32 program to get a list of the interrupts, and I had all the way up to Interrupt 22!
What I'm thinking is that Windows is somehow "binding" the hardware to a software interrupt. If this is true, please let me know.
Thanks for any help you can provide. This should be a rather easy question to answer.