[NOS2Go4Me]

Aka,Jul 13 2005, 02:03 PM Wrote:This has been around for years IIRC. Though I don't think Intel should break things for competitors, they certianly don't have to support AMDs extensions or test with AMDs.
[right][snapback]121824[/snapback][/right]

You guys are missing the point. It's about letting AMD run instructions that they've engineered for. They have cross-licensing to support the SSE/SSE2/SSE3 instruction sets. Obviously AMD would test with M's compiler in this case to ensure their chips support the instruction set fully before releasing it to the general public.
Intel's playing dirty pool and only allowing the SSE-related codepaths to be enabled if the CPUID registers show a "GenuineIntel" product.

It's exactly the same as AMD and X86-64. AMD developed the code, Intel cross-licensed it, changed a few instructions and modified it for Hyper-Threading instructions. They then called it EM64T and demanded MS support it in addition to AMD X86-64. MS caved and even delayed the full final test release of the XP Pro 64-bit to accomodate the launch of the Intel EM64T-enabled P4s.

It's disgusting. There's no other word for it.