Method and apparatus for selective renaming in a microprocessor

A method and apparatus for allowing an out-of-order processor to reuse an in- use physical register is disclosed herein. The method and apparatus uses identifiers, such as tokens and / or other identifiers in a rename map table (RMT) and a physical register file (PRF), to indicate whether an instruc...

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Bibliographische Detailangaben
Hauptverfasser: SARTORIUS THOMAS ANDREW, NAVADA SANDEEP SURESH, SMITH RODNEY WAYNE, MCILVAINE MICHAEL SCOTT, KRISHNA ANIL, DOCKSER KENNETH ALAN, CHOUDHARY NIKET KUMAR
Format: Patent
Sprache:eng
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Zusammenfassung:A method and apparatus for allowing an out-of-order processor to reuse an in- use physical register is disclosed herein. The method and apparatus uses identifiers, such as tokens and / or other identifiers in a rename map table (RMT) and a physical register file (PRF), to indicate whether an instruction result is allowed or disallowed to be written into a physical register.