Query regarding cmpxchg16b instruction for i386

[Michael Zolotukhin]

There is no flag for architecture, supporting XCHG16-instruction, in
binutils at all. I guess introducing it could be a good idea, as
current situation seems to be wrong.

On 17 September 2012 10:21, Ekanathan, Saravanan
<Saravanan.Ekanathan@amd.com> wrote:
> Hi All,
> In gcc, cmpxchg16b instruction is included as part of ISA CX16.
> In binutils, same instruction is included as part of ISA SSE3 (Ref. opcodes/i386-opc.tbl) and there is no CX16 ISA
> I could find lot of references  for cmpxchg16b being part of CX16 ISA but not SSE3
> Can somebody throw some light on this?
> Regards,
> Saravanan
>
>

-- 
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Best regards,
Michael V. Zolotukhin,
Software Engineer
Intel Corporation.