[Basic Question] Bootloader, IDT, GDT
Posted: Thu Sep 15, 2011 8:08 am
Hi!
I was told to make a bootloader which, in the .asm file, needed to define a GDT with 3 TSS Descriptors,
a LDT for the Keyboard ISR with code and data segment, and the IDT with gate-descriptors.
The ISR we have to make are Keyboard and Timer.
My question is, do I have to put the firsts 31 exceptions entrys in the IDT or only 2 gate-descriptors,
one for each ISR?
Thanks and sorry for my english.
I was told to make a bootloader which, in the .asm file, needed to define a GDT with 3 TSS Descriptors,
a LDT for the Keyboard ISR with code and data segment, and the IDT with gate-descriptors.
The ISR we have to make are Keyboard and Timer.
My question is, do I have to put the firsts 31 exceptions entrys in the IDT or only 2 gate-descriptors,
one for each ISR?
Thanks and sorry for my english.