Pipeline processing apparatus for executing instructions in three streams, including branch stream pre-execution processor for pre-executing conditional branch instructions
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United States of America Patent
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Feb 5, 1991
Grant Date -
N/A
app pub date -
Mar 13, 1986
filing date -
Mar 13, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In an approach to reducing delays resulting from resolution of conditional branch instructions, such instructions are pre-executed in a coprocessor which precedes a pipeline processor and prepared an instruction stream for input to the pipeline processor. Because of this pre-execution, the input instruction stream has fewer conditional branches for the pipeline processor to resolve. Also, the coprocessor may handle address generation interlock situations which also cause execution delays in the pipeline processor.
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