anchor.diff:      nil
       nil
       nil
  -    nil
  -    nil
  -    nil
  -    nil
  -    nil ; B0
  -    nil
  +    (decode-ev-gv-ib sys.lap-x86:shrd16 sys.lap-x86:shrd32 sys.lap-x86:shrd64)
  +    nil
  +    nil
  +    nil
  +    (decode-eb-gb sys.lap-x86:cmpxchg) ; B0
  +    (decode-ev-gv sys.lap-x86:cmpxchg sys.lap-x86:cmpxchg sys.lap-x86:cmpxchg)
       nil
       nil
       nil
  
positive.code:                                  (eql (ea-base operand) :rip)
                                   (<= code-start
                                       (+ (context-code-offset context) (ea-disp operand))
                                       code-end))
                          (label context
                                 (+ (context-code-offset context)
                                    (ea-disp operand))
  
negative.code:     nil
      nil
      nil
      (decode-v-w-ib sys.lap-x86:shufps sys.lap-x86:shufpd nil nil)
      (decode-group-9)
      nil ; C8
      nil
      nil
  