(:emitter
(aver (or (dword-reg-p dst) (qword-reg-p dst)))
(maybe-emit-rex-for-ea segment src dst
- :operand-size :qword)
+ :operand-size (if (dword-reg-p dst) :dword :qword))
(emit-byte segment #b10001101)
(emit-ea segment src (reg-tn-encoding dst))))