NOTE: This is not an official form of support. This is not an official service of Red Hat. These things may solve your worst nightmare, or they may eat all of the cheese in your house. I make no guarantees. YMMV.
These manuals describe the architecture and programming environment of the Intel® 64 and IA-32 processors. Electronic versions of these documents allow you to quickly get to the information you need and print only the pages you want.