Exploiting Narrow Values for Energy Efficiency in the Register Files of Superscalar Microprocessors

Oguz Ergin

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Register file is a hot spot in contemporary microprocessors. As the number of instructions present in the processor at a given time increases, the size of the register file increases and it becomes a more important source of power dissipation inside the processor. Therefore it is important to pursue techniques that reduce the energy dissipation of register files. In this paper we present a technique that exploits the narrowness of the produced and consumed values in order to reduce the dynamic energy dissipation of the register file. Our technique results in 20% energy reduction in the integer register file on average.
Original languageEnglish
Title of host publicationIntegrated Circuit and System Design. Power and Timing Modeling, Optimization and Simulation
Subtitle of host publication16th International Workshop, PATMOS 2006, Montpellier, France, September 13-15, 2006. Proceedings
PublisherSpringer Berlin Heidelberg
Number of pages9
ISBN (Electronic)978-3-540-39097-8
ISBN (Print)978-3-540-39094-7
Publication statusPublished - 2006

Publication series

NameLecture Notes in Computer Science
PublisherSpringer Berlin Heidelberg
ISSN (Print)0302-9743


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