A method for accessing a bus in a clustered instruction level parallelism processor

摘要

Basic thought of the present invention is to add switch along bus, so that come fitly described bus to be divided into less independent segment by the described switch of cut-off/close.The concentrating type ILP processor comprises a plurality of clusters (C1-C6), bus unit (100) and switchgear (200), wherein each cluster comprises at least one register file (RF) and at least one functional unit (FU), described bus unit (100) is used to connect described cluster (C1-C6), wherein said bus (100) comprises a plurality of total segment (100a, 100b, 100c), described switchgear (200) is arranged in adjacent total segment (100a, 100b, 100c) between.Described switchgear (200) be used to connect or disconnect adjacent total segment (100a, 100b, 100c).In addition, show a kind of method that is used at concentrating type ILP processor access bus (100).Described bus (100) comprises at least one switchgear (200) along described bus (100).Cluster can be carried out transmit operation based on source-register and transfer word, perhaps carries out the reception operation based on purpose source-register and transfer word.Then, according to the described switchgear of described transfer word cut-off/close.