Is it possible to get the address of the GDT?

Question

I have a bootloader that is setting up the GDT for me. Is it possible to find out the address of this GDT so I can use it?

In x86 protected mode obviously – user1454902 Jan 07 '13 at 06:40 — user1454902, Jan 07 '13 at 06:40

score 3 · Accepted Answer · answered Jan 07 '13 at 06:46

3

Sure, just use the sgdt instruction to read out the current setting.

answered Jan 07 '13 at 06:46

Carl Norum

Wow! I didn't even know that instruction existed! Thank you – user1454902 Jan 07 '13 at 06:58

1 Answers1