+ mov si, EnableExecuteDisableLocation\r
+ cmp byte [si], 0\r
+ jz SkipEnableExecuteDisableBit\r
+\r
+ ;\r
+ ; Enable execute disable bit\r
+ ;\r
+ mov ecx, 0c0000080h ; EFER MSR number\r
+ rdmsr ; Read EFER\r
+ bts eax, 11 ; Enable Execute Disable Bit\r
+ wrmsr ; Write EFER\r
+\r
+SkipEnableExecuteDisableBit:\r