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Query regarding cmpxchg16b instruction for i386
- From: "Ekanathan, Saravanan" <Saravanan dot Ekanathan at amd dot com>
- To: "binutils at sourceware dot org" <binutils at sourceware dot org>
- Date: Mon, 17 Sep 2012 06:21:35 +0000
- Subject: Query regarding cmpxchg16b instruction for i386
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?