I'm seraching for a 8259 (ex Intel Peripheral Interrupt Controller) guru.
Unfortunately Intel doesnt support this chip anymore and they removed
all application notes from their web sites.
The published data sheet is somewhat unclear in what the chip does,
when using it in polling mode (e.g. when the INT output is reset).
So if anyone has the application notes or links to them or know how to
solve our problems with the chip DON HESITATE to mail to