Intel's Xeon to become fully compatible with AMD64

Posted on Friday, September 09 2005 @ 11:15 CEST by Thomas De Maesschalck

Intel's Xeon DP processor lineup will get a few additional EM64T instructions to make it fully compatible with AMD's AMD64 technology, according to the Register.

The update from stepping E-0 to G-1 will add the LAHF and SAHF instructions, which EM64T currently lacks. The reason for this is because AMD added the two instructions to its 64-bit specification after the Intel engineers used it to create EM64T.

These two instructions are used to copy information back and forth between the chip's status flags and its AH register.

These 100% AMD64 compatible Xeons will sample on October 17 and should be available on November 28. Pentium 4 5x1 processors with full AMD64 compatibility will sample on the same date and will retail on November 14. The Pentium 6x1 will likely get an update too.

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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