Public bug reported:
xchg r8,rax (49h 90h) executed as nop (90h) in long mode, in other words
REX not used.
qemu 0.12.4, host Win 7 x64, running qemu-system-x86_64.exe.
** Affects: qemu
Importance: Undecided
Status: New
--
xchg r8,rax treated as nop
https://bugs.launchpad.net/bugs/600589
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Status in QEMU: New
Bug description:
xchg r8,rax (49h 90h) executed as nop (90h) in long mode, in other words REX
not used.
qemu 0.12.4, host Win 7 x64, running qemu-system-x86_64.exe.
