[DynInst_API:] [dyninst/dyninst] c8d8c2: Fix on x86-64 the mov instruction for register of ...

[Sasha Nicolas <sasha@xxxxxxxxxxx>]

  Branch: refs/heads/master
  Home:   https://github.com/dyninst/dyninst
  Commit: c8d8c204cdb43576fdaaabf16110681e445a4ad8
      https://github.com/dyninst/dyninst/commit/c8d8c204cdb43576fdaaabf16110681e445a4ad8
  Author: Sasha Nicolas <sasha@xxxxxxxxxxx>
  Date:   2019-01-03 (Thu, 03 Jan 2019)

  Changed paths:
    M dyninstAPI/src/Relocation/CodeMover.h
    M dyninstAPI/src/addressSpace.C
    M dyninstAPI/src/codegen.C
    M dyninstAPI/src/emit-x86.C

  Log Message:
  -----------
  Fix on x86-64 the mov instruction for register of 16-bit size.
The opcode 89h is for both 32-bit and 16-bit but to use
the 16-bit version it's necessary to add an operand-size prefix
byte of value 66h.
Test snip_ref_shlib_var now passing on x86-64 linux.



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