[DynInst_API:] REX prefix

[Victor van der Veen <vvdveen@xxxxxxxxx>]

Hello,

I'm looking at Dyninst disassembled IA64 code a lot these days and maybe
just found a minor bug.

objdump -d output:
  ...
  414883:   40 b6 01                mov    $0x1,%sil
  ...

While Dyninst 8.2.1 disassembles this instruction as:
  ...
  mov DH, 1
  ...

It seems that Dyninst does not process the REX prefix correctly. I did
not yet study the Dyninst source to see if I'm correct...

With kind regards,

Victor van der Veen