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DESIGN STRUCTURE FOR SINGLE HOT FORWARD INTERCONNECT SCHEME FOR DELAYED EXECUTION PIPELINES
DESIGN STRUCTURE FOR SINGLE HOT FORWARD INTERCONNECT SCHEME FOR DELAYED EXECUTION PIPELINES
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机译:延迟执行管道的单热前向互连方案的设计结构
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摘要
A design structure embodied in a machine readable storage medium for designing, manufacturing, and/or testing a design for forwarding data in a processor is provided. The design structure includes a processor. The processor includes at least one cascaded delayed execution pipeline unit having a first and second pipeline, wherein the second pipeline is configured to execute instructions in a common issue group in a delayed manner relative to the first pipeline, and circuitry. The circuitry is configured to determine if a first instruction being executed in the first pipeline modifies data in a data register which is accessed by a second instruction being executed in the second pipeline, and if the first instruction being executed in the first pipeline modifies data in the data register which is accessed by the second instruction being executed in the second pipeline, forward the modified data from the first pipeline to the second pipeline.
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