[Assembly] Lock & Memory fence

1. LOCK (assert LOCK# signal prefix)

2. CMPXCHG (CoMPare and eXCHanGe)

3. CMPXCH8B (CoMPare and eXCHanGe 8 Bytes)

4. XADD (eXchange and ADD)

5. XCHG (eXCHanGe register/memory with register)

6. Memory Reordering

7. Full memory fence

8. Intra-Processor Forwarding

9. Global visibility

10. MOVNTPS/MOVNTPD

11. MFENCE (Memory FENCE)

12. Synchronize