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Hello all. At the moment, I am trying to disassemble and understand my BIOS ROM (Compaq pentium 3), for learning purposes. Anyway, at some point I ran into the ROM contacting I/O ports F860, F861, F866, F868, and F86E. I'll probably find some more. Does anybody know what these port are for? At least generally? I couldn't find a thing about them..

Somethink about digital i/o ports.

search for F860:
http://www.jkmicro.com/documentation/pd ... _man11.pdf

and for better pdf handling : http://www.foxitsoftware.com/pdf/pdfrd.zip
is much better then adobestuff!