System, apparatus, and method for segment register read and write regardless of privilege level
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United States of America Patent
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Jan 20, 2015
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app pub date -
Dec 22, 2010
filing date -
Dec 22, 2010
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Abstract
Embodiments of systems, apparatuses, and methods for performing privilege agnostic segment base register read or write instruction are described. An exemplary method may include fetching the privilege agnostic segment base register write instruction, wherein the privilege agnostic write instruction includes a 64-bit data source operand, decoding the fetched privilege agnostic segment base register write instruction, and executing the decoded privilege agnostic segment base register write instruction to write the 64-bit data of the source operand into the segment base register identified by the opcode of the privilege agnostic segment base register write instruction.
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