8/23/2005

Intel tweaks EM64T for full AMD64 compatibility

Filed under: — By Aviran Mordo @ 8:59 pm

Intel is preparing to update its Pentium 4 core, the better make its 64-bit processors more compatible with AMD’s 64-bit processors, company documents seen by The Register reveal.

The new core, dubbed ‘G-1′, will replace the current ‘E-0′ core in Q4. According to a note sent to Intel customers, samples of the updated processors will ship on 17 October, with full shipments commencing just under a month later, on 14 November.
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The tweak, which will require a BIOS update, adds a pair of instructions to the EM64T instruction set: LAHF and SAHF. These two codes copy content back and forth between the chip’s status flags and its AH register.

Source: The Register

 

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