AA-64 architecture
descriptor tables




 
protected mode IDT64, GDT, and LDT
 
offset IDT64
+0000h gate #00h descriptor
+0010h gate #01h descriptor
... ...
eg. 64bit interrupt gate
eg. 64bit trap gate
...
+0FF8h gate #FFh descriptor
+1000h unused
...
+FFFFh
offset GDT LDT
+0000h NULL descriptor descriptor
+0008h descriptor descriptor
... ... ...
eg. code segment desc. eg. code segment desc.
eg. data segment desc. eg. data segment desc.
eg. 64bit call gate desc. eg. 64bit call gate desc.
eg. 64bit LDT desc. ...
eg. 64bit TSS desc.
...
+FFF8h descriptor descriptor



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