发明授权
US07613910B2 Information processing apparatus, method, and computer-readable recording medium for replacing an entry in a memory device
失效
用于替换存储装置中的条目的信息处理装置，方法和计算机可读记录介质
- 专利标题： Information processing apparatus, method, and computer-readable recording medium for replacing an entry in a memory device
- 专利标题（中）： 用于替换存储装置中的条目的信息处理装置，方法和计算机可读记录介质
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申请号： US11062472申请日： 2005-02-22
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公开(公告)号： US07613910B2公开(公告)日： 2009-11-03
- 发明人: Megumi Yokoi
- 申请人： Megumi Yokoi
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Staas & Halsey LLP
- 优先权： JP2004-286129 20040930
- 主分类号： G06F9/00
- IPC分类号： G06F9/00 ; G06F9/44
摘要：
The present invention relates to an information processing apparatus predicting a branch destination of a branch instruction using a branch history register to realize effective replacement by enabling an unnecessary entry to be selected as an entry, which is an object of replacement, without using new resources in a full-associative memory device. The invention includes a selector for selecting one entry from all entries of a past branch history memory section if all entries of the past branch history memory section are in use when a branch history about a new branch instruction is registered into the past branch history memory section and a replacing section for registering the branch history about the new branch instruction into one entry selected by said selector, wherein the selector has a first selecting function of selecting one entry based on the branch history held by the past branch history memory section.
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