OS Theory:
1. AST's Design and Implementation of Operating System (Theory + Praticle)
2. Operating System Concepts, 6th Edition -- by Abraham Silberschatz (theory)
3. Design of the Unix Operating System by Marice J. Bach (Classic work)
4. The Design and Implementation of the 4.4BSD Operating System (Network/FS issues are in great details) (3 and 4 are said to be even inspiring to Linus.
)
5. Inside Windows 2000. Really worth reading book! Considering domination it enjoys! Of course, it comes from good OS of course!
Processor:
In addition to Intel Manuals,
1. Advanced 80386 Programming Techniques, Jim Turley, McGraw-Hill
2. The Indispensable PC Hardware Book: Your Hardware Questions Answered (3rd Edition), Hans-Peter Messmer
3. Protected Mode Software Architecture (The PC System Architecture Series) by Tom Shanley
As usual, details can be found on Amazon.com
But IMHO, read them, you will understand what you want to do. Design it as simple as possible. Then develop, This may take 6-8 months. Once this is done, you can have something that works and called as OS.
Well, am my self on Second month as on 12/11/02.
ADi.