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New Microprocessors and Microsystems Data Have Been Reported by Investigators at National Changhua University of Education (Register swapping schemes...

September 10, 2014

New Microprocessors and Microsystems Data Have Been Reported by Investigators at National Changhua University of Education (Register swapping schemes for low power execution)

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Current study results on Microprocessors and Microsystems have been published. According to news reporting from Changhua, Taiwan, by VerticalNews journalists, research stated, "For embedded systems, the power dissipation on buses has become an essential issue in recent years. Many real-time embedded processors, such as DSP processors, adopt the Harvard architecture in which the data and instruction buses are separated to avoid processing-speed degradation."

The news correspondents obtained a quote from the research from the National Changhua University of Education, "The power dissipation on an instruction bus can be reduced if the switching activities between consecutive instructions on that bus are reduced. Two efficient algorithms, the greedy method and the dynamic programming based method, are proposed to swap commutative source register fields of adjacent instructions. The switching activities on the instruction bus are therefore reduced, without affecting the execution results. Experimental results show that the proposed schemes result in a reduction of as much as 21.43% in the switching activities of consecutive source register fields between commutative blocks."

According to the news reporters, the research concluded: "In addition, the proposed schemes can be conveniently integrated with other encoding schemes to further improve the power dissipation on an instruction bus."

For more information on this research see: Register swapping schemes for low power execution. Microprocessors and Microsystems, 2014;38(5):485-495. Microprocessors and Microsystems can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Microprocessors and Microsystems -

Our news journalists report that additional information may be obtained by contacting P.Y. Chen, Natl Changhua Univ Educ, Dept. of Comp Sci & Informat Engn, Changhua, Taiwan.

Keywords for this news article include: Changhua, Taiwan, Asia, Microprocessors and Microsystems

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Source: Electronics Newsweekly

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