boot/x86/stage3/gdt.s

   1 ; Initial GDT for kernel, which wants a flat code and data descriptor
   2
   3 section .rodata
   4
   5 gdt:
   6         dw .end-.start-1
   7         dd .start
   8 .start: dq 0 ; null descriptor
   9 .code:
  10         dw 0xffff
  11         dw 0
  12         db 0
  13         db 10011010b
  14         db 11001111b
  15         db 0
  16 .data:
  17         dw 0xffff
  18         dw 0
  19         db 0
  20         db 10010010b
  21         db 11001111b
  22         db 0
  23 .end:
  24