发明授权
- 专利标题: Method for latest producer tracking in an out-of-order processor, and applications thereof
- 专利标题(中): 无序处理器中最新生产者跟踪的方法及其应用
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申请号: US12104308申请日: 2008-04-16
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公开(公告)号: US07747840B2公开(公告)日: 2010-06-29
- 发明人: Kjeld Svendsen , Xing Yu Jiang
- 申请人: Kjeld Svendsen , Xing Yu Jiang
- 申请人地址: US CA Mountain View
- 专利权人: MIPS Technologies, Inc.
- 当前专利权人: MIPS Technologies, Inc.
- 当前专利权人地址: US CA Mountain View
- 代理机构: Sterne, Kessler, Goldstein & Fox PLLC.
- 主分类号: G06F9/38
- IPC分类号: G06F9/38
摘要:
Methods for latest producer tracking in a processor. In one embodiment, the method includes the steps of (1) writing a physical register identification value in a first register rename map location specified by a first instruction, (2) writing a first in-register status value in a second register rename map location specified by the first instruction, (3) writing a producer tracking status value at a producer tracking map location specified by the physical register identification value, and (4) modifying, upon graduation of the first instruction, the first in-register status value only if the producer tracking map location stores the producer tracking status value written in step (3). Other methods are also presented.
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