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Hi...

I've begun programming the PIC and whatever followes, but then i came to the IDT Descriptor (I've read about it at www.osdever.net), and now I'm a bit confused about what some of the bits does...

They have a table, that describes what the bits does, but then bit 12-4 in first doubleword are just there without any notifications of their importance or what they do:

12 7 4
(01110) 5 bits (000) 3 bits Not Used

Do get yourself a copy of the Intel manuals. They are the definite reference.

http://www.intel.com/design/pentium4/manuals/

Heh... I've read a lot about these, but never knew where to find them

Is it all of the links under the manual section i have to use, or is it just some of them, if so which?

Triumph wrote: Heh... I've read a lot about these, but never knew where to find them

Is it all of the links under the manual section i have to use, or is it just some of them, if so which?

Part one is an introduction, part three is the full system level overview (not interesting to just about all, but explicitly very interesting to us!) and part two is the full list of all opcodes from the 8086 up to the P4-prescott with 64-bit extensions.

In short, you can use all, but you probably only NEED part 3. The others do come in handy though. You can also use the optimization manual for getting a better understanding of the cpu.

part three is the full system level overview (not interesting to just about all, but explicitly very interesting to us!)

..and the only one that are out of stock and must be read in pdf format on the computer..

I tried to dl them yester day, but my browser chrashed whenever i tried, but a friend of mine send me a pdf file called: Intel Architecture Software Developer's Manual Volume 3: System Programming...

Is that the one im going to use?

Yes. ga.