发明授权
US06735690B1 Specifying different type generalized event and action pair in a processor
有权
在处理器中指定不同类型的广义事件和动作对
- 专利标题: Specifying different type generalized event and action pair in a processor
- 专利标题(中): 在处理器中指定不同类型的广义事件和动作对
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申请号: US09598566申请日: 2000-06-21
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公开(公告)号: US06735690B1公开(公告)日: 2004-05-11
- 发明人: Edwin F. Barry , Patrick R. Marchand , Gerald G. Pechanek , Charles W. Kurak, Jr.
- 申请人: Edwin F. Barry , Patrick R. Marchand , Gerald G. Pechanek , Charles W. Kurak, Jr.
- 主分类号: G06F1500
- IPC分类号: G06F1500
摘要:
A processor with a generalized eventpoint architecture, which is scalable for use in a very long instruction word (VLIW) array processor, such as the manifold array (ManArray) processor is described. In one aspect, generalized processor event (p-event) detection facilities are provided by use of compares to check if an instruction address, a data memory address, an instruction, a data value, arithmetic-condition flags, or other processor change of state eventpoint has occurred. In another aspect, generalized processor action (p-action) facilities are provided to cause a change in the program flow by loading the program counter with a new instruction address, generate an interrupt, signal a semaphore, log or count the p-event, time stamp the event, initiate a background operation, or to cause other p-actions to occur. The generalized facilities are defined in the eventpoint architecture as consisting of a control register and three eventpoint parameters, namely at least one register to compare against, a register containing a second compare register, a vector address, or parameter to be passed, and a count or mask register. Based upon this generalized eventpoint architecture, new capabilities are enabled. For example, auto-looping with capabilities to branch out of a nested auto-loop upon detection of a specified condition, background DMA facilities, the ability to link a chain of p-events together for debug purposes, and others are all important capabilities which are readily obtained.
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