gdt.inc

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%pragma once
 
%define GDT_NULL 0x00
%define GDT_KERNEL_CODE 0x08
%define GDT_KERNEL_DATA 0x10
%define GDT_USER_DATA 0x18
%define GDT_USER_CODE 0x20
%define GDT_TSS 0x28
 
%define GDT_CS_RING0 GDT_KERNEL_CODE | 0x0
%define GDT_SS_RING0 GDT_KERNEL_DATA | 0x0
 
%define GDT_CS_RING3 GDT_USER_CODE | 0x3
%define GDT_SS_RING3 GDT_USER_DATA | 0x3