Is Common Intrinsic _byteswap_uint64 supported on x86?

From: Robert Magyar (anonymous_at_discussions.microsoft.com)
Date: 02/27/04 

Date: Fri, 27 Feb 2004 15:26:08 -0800

The documentation says: common intrinsic functions, are called common because they are supported on most of the target platforms for Windows CE .NET, although you may need to use in-line assembly language or a run-time library call on the x86 platform.

Is _byteswap_uint64 avaiable for x86?

I've included <cmnintrin.h>, but the compiler says: '_byteswap_uint64' undefined.

Is there special way to invoke it?

Thanks,
Robert