发明授权
US06915415B2 Method and apparatus for mapping software prefetch instructions to hardware prefetch logic
失效
将软件预取指令映射到硬件预取逻辑的方法和装置
- 专利标题： Method and apparatus for mapping software prefetch instructions to hardware prefetch logic
- 专利标题（中）： 将软件预取指令映射到硬件预取逻辑的方法和装置
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申请号： US10042102申请日： 2002-01-07
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公开(公告)号： US06915415B2公开(公告)日： 2005-07-05
- 发明人: Michael John Mayfield , Francis Patrick O'Connell , David Scott Ray
- 申请人： Michael John Mayfield , Francis Patrick O'Connell , David Scott Ray
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Carr LLP
- 代理商 Robert M. Carwell
- 主分类号： G06F9/00
- IPC分类号： G06F9/00 ; G06F9/30 ; G06F9/318 ; G06F9/38
摘要：
A method and apparatus for mapping some software prefetch instructions in a microprocessor system to a modified set of hardware prefetch instructions and executing the software prefetch by invoking the corresponding modified hardware prefetch instruction. For common software prefetch access patterns, by mapping the software prefetches to hardware, improved prefetching can be achieved without the need for additional hardware.