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INFORMATION PROCESSING DEVICE AND METHOD, PROGRAM, AND RECORDING MEDIUM

外国特許コード F080001916
整理番号 F080001916
掲載日 2008年9月12日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2007JP051965
国際公開番号 WO 2008/012957
国際出願日 平成19年2月6日(2007.2.6)
国際公開日 平成20年1月31日(2008.1.31)
優先権データ
  • 特願2006-203106 (2006.7.26) JP
発明の名称 (英語) INFORMATION PROCESSING DEVICE AND METHOD, PROGRAM, AND RECORDING MEDIUM
発明の概要(英語) An information processing device and method, a program, and a recording medium capable of reducing the time required for prediction and improving the accuracy of branch prediction. In a pipeline structure where M chains each having a length of n groups and sequentially processed at each stage are formed by dividing pipelines in which the branch results included in a global history (84) are divided in order of history and sequentially processed at each stage into n groups in each of which M branch results are processed in a block parallel way at the same stage sequentially from the latest history except for the last stage, a weight selecting section (61) selects a weight from a weight table (82) and reads it, a weighted branch result value accumulating section (62) calculates the weighted branch result value by using the weight value and determines the accumulated value, and a prediction value calculating section (73) calculates the prediction value by using the sum of the weighted branch result accumulated values and the threshold calculated by a threshold calculating section (72). The invention can be applied to a branch predictor.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • The University Of Electro-communications
  • 発明者(英語)
  • Ninomiya, Yasuyuki
  • Abe, Koki
国際特許分類(IPC)
指定国 AE AG AL AM AT AU AZ BA BB BE BF BG BJ BR BW BY BZ CA CF CG CH CI CM CN CO CR CU CY CZ DE DK DM DZ EC EE EG ES FI FR GA GB GD GE GH GM GN GQ GR GT GW HN HR HU ID IE IL IN IS IT JP KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LV LY MA MC MD MG MK ML MN MR MW MX MY MZ NA NE NG NI NL NO NZ OM PG PH PL PT RO RS RU SC SD SE SG SI SK SL SM SN SV SY SZ TD TG TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
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