System for grouping instructions for multiple issue using plural

Details System for grouping instructions for multiple issue using plural System for grouping instructions for multiple issue using plural

1994-08-22

1998-04-21

Ellis, Richard L.

395391, G06F 930

Patent

active

057427836

ABSTRACT:
Computer appratus includes an instruction execution unit (13) having a plurality of functional units (14,16) each arranged to execute at least part of an instruction and instruction issuing circuitry (10,12) for issuing simultaneously a group of separate compatible instructions to the execution unit (13) the circuitry (12) having means for classifying each instruction in dependence on the or each functional unit required for execution of that instruction and means for testing the classification of successive instructions and selecting a group which according to their classification are compatible for simultaneous issue to the execution unit (13) without conflicting demands on any function unit (14,16) in the execution unit.

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