发明名称 |
Method and system for tracking instruction progress within a data processing system |
摘要 |
A processor and method for tracking instruction execution within a processor are described. The processor includes at least one execution unit that executes instructions and an instruction status indicator that dynamically indicates a status of an instruction during processing. The instruction status indicator has at least a first state to which the instruction status indicator is set in order to indicate that execution of the instruction is stalled. In one embodiment, the processor further includes a reason code indicator associated with the instruction status indicator that specifies an event occurrence that caused the indicated instruction status. In another embodiment, the processor further includes a history buffer that indicates the number of processor cycles that the status indicated by the instruction status indicator has remained unchanged. |
申请公布号 |
US5987598(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19970888798 |
申请日期 |
1997.07.07 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LEVINE, FRANK ELIOT;ROTH, CHARLES PHILIP;WELBON, EDWARD HUGH |
分类号 |
G06F11/30;G06F11/34;(IPC1-7):G06F11/00 |
主分类号 |
G06F11/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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