发明申请
US20090287907A1 System for providing trace data in a data processor having a pipelined architecture
有权
用于在具有流水线架构的数据处理器中提供跟踪数据的系统
- 专利标题: System for providing trace data in a data processor having a pipelined architecture
- 专利标题(中): 用于在具有流水线架构的数据处理器中提供跟踪数据的系统
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申请号: US12387152申请日: 2009-04-28
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公开(公告)号: US20090287907A1公开(公告)日: 2009-11-19
- 发明人: Robert Graham Isherwood , Ian Oliver , Andrew Webber
- 申请人: Robert Graham Isherwood , Ian Oliver , Andrew Webber
- 优先权: GB0807701.8 20080428
- 主分类号: G06F9/30
- IPC分类号: G06F9/30 ; G06F9/38
摘要:
The invention is a method and system for providing trace data in a pipelined data processor. Aspects of the invention include providing a trace pipeline in parallel to the execution pipeline, providing trace information on whether conditional instructions complete or not, providing trace information on the interrupt status of the processor, replacing instructions in the processor with functionally equivalent instructions that also produce trace information and modifying the scheduling of instructions in the processor based on the occupancy of a trace output buffer.
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