Hello everyone i also have one things not understand as follow:

To initialize the IDT, the following function is provided:
setInterruptHandler(int position, void (*handler)(), int privLevel)
The parameters required to write the exception are:
• int position. Entry in the IDT.
• void (*handler)(). Address of the handler that will handle the exception4.
• int privLevel. Privilege level to be accessed. There are two possibilities:
0 to Kernel, 3 to User. Decide the privilege level of the code that generates an exception.

Hope your can help me , how to write this code?

I would recommend writing the IDT in assembly language- here is a good tutorial
http://www.osdever.net/tutorials/vie...ts-part-3-idts

Check out the following:
http://www.zanshu.com/ebook/143_orei...dition/033.htm
and
http://stackoverflow.com/questions/2...scriptor-table