It would make no sense to do so. Here's why. An IRQ when triggered tells the CPU to jump to an address to handle the request. That's just a CPU memory address and in a 32-bit CPU takes 32 bits. Unless we change the CPU design to need more address bits, this would make no sense to attempt to change. In fact, you can't!
When you make such a request, maybe a reference web article about where the idea came from would clarify what you wanted to do.
Bob
I once read how to allocate extra memory to a devices irq, but do not remember how to do it. I do not remember if it was SE or XP but I would like to be able to try it in XP.
Is this a hardware issue or where would be the proper post?

Chowhound
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GameFAQs
GameSpot
Giant Bomb
TechRepublic