lgdt [0]
lidt [0x100]
sgdt [0x1000]
sidt [0x2004]
fstenv [0x4]
fsave [0x800]
invlpg [0xffff0000]
fxsave [0x200]
fxrstor [0x400]
prefetchnta [0x4]
prefetcht0 [0x8]
prefetcht1 [0xC]
prefetcht2 [0x10]
prefetch [0x50]
prefetchw [0x60]