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公开(公告)号：US08819397B2
公开(公告)日：2014-08-26
申请号：US13037830
申请日：2011-03-01
申请人： Michael D. Estlick , Jay Fleischman , Debjit Das Sarma , Emil Talpes , Krishnan V. Ramani , Chun Liu
发明人： Michael D. Estlick , Jay Fleischman , Debjit Das Sarma , Emil Talpes , Krishnan V. Ramani , Chun Liu
CPC分类号： G06F9/3861 , G06F9/30094 , G06F9/3842
摘要： Methods and apparatuses are provided for increased efficiency in a processor via control word prediction. The apparatus comprises an operational unit capable of determining whether an instruction will change a first control word to a second control word for processing dependent instructions. Execution units process the dependent instructions using a predicted control word and compare the second control word to the predicted control word. A scheduling unit causes the execution units to reprocess the dependent instructions when the predicted control word does not match the second control word. The method comprises determining that an instruction will change a first control word to a second control word and processing the dependent instructions using a predicted control word. The second control word is compared to the predicted control word and the dependent instructions are reprocessed using the second control word when the predicted control word does not match the second control word.
摘要翻译： 提供了通过控制字预测提高处理器效率的方法和装置。 该装置包括一个操作单元，其能够确定指令是否将第一控制字改变为第二控制字以用于处理相关指令。 执行单元使用预测的控制字处理依赖指令，并将第二控制字与预测的控制字进行比较。 当预测控制字与第二控制字不匹配时，调度单元使执行单元重新处理依赖指令。 该方法包括确定指令将第一控制字改变为第二控制字，并使用预测的控制字处理依赖指令。 将第二控制字与预测的控制字进行比较，并且当预测控制字与第二控制字不匹配时，使用第二控制字重新处理依赖指令。
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公开(公告)号：US07206916B2
公开(公告)日：2007-04-17
申请号：US10795815
申请日：2004-03-08
IPC分类号： G06F12/10
CPC分类号： G06F12/1027 , G06F11/3471 , G06F11/348 , G06F2201/86 , G06F2201/88 , G06F2201/885
摘要： A method of performing a fast information compare within a processor which includes performing a more significant bit compare when information is loaded into a translation lookaside buffer, storing a result of the more significant bit compare within the translation lookaside buffer as part of an entry containing the information, and using the result of the more significant bit compare in conjunction with results from a compare of less significant bits of the information and less significant bits of compare information to determine whether a match is present. The more significant bit compare compares more significant bits of the information being loaded into the translation lookaside buffer with more significant bits of compare information.
摘要翻译： 一种在处理器内执行快速信息比较的方法，包括当信息被加载到翻译后备缓冲器中时执行更重要的位比较，将翻译后备缓冲器内的更高有效位比较的结果存储在包含 并且将结果与比较信息的较低有效位的比较结果和比较信息的较低有效比特结果进行比较，以确定是否存在匹配。 更重要的比较比较将加载到翻译后备缓冲器中的信息的更高有效位与更多比较的比较信息比较。
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