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-rw-r--r--sys/arch/amd64/cpu/gdt.S14
1 files changed, 14 insertions, 0 deletions
diff --git a/sys/arch/amd64/cpu/gdt.S b/sys/arch/amd64/cpu/gdt.S
index 9c508ee..1ffe53c 100644
--- a/sys/arch/amd64/cpu/gdt.S
+++ b/sys/arch/amd64/cpu/gdt.S
@@ -85,6 +85,20 @@ GDT:
.byte 0b10010010
.byte 0b00000000
.byte 0x00
+.UCODE:
+ .word 0x0000
+ .word 0x0000
+ .byte 0x00
+ .byte 0b11111010
+ .byte 0b10101111
+ .byte 0x00
+.UDATA:
+ .word 0x0000
+ .word 0x0000
+ .byte 0x00
+ .byte 0b11110010
+ .byte 0b00000000
+ .byte 0x00
.globl GDTR
GDTR: