Hierarchical scan logic for out-of-order load/store execution co

Details Hierarchical scan logic for out-of-order load/store execution co Hierarchical scan logic for out-of-order load/store execution co

1996-10-23

1998-11-10

Bowler, Alyssa H.

395389, 395390, 395393, 395394, G06F 9312

Patent

active

058357475

ABSTRACT:
Scheduler logic which tracks the relative age of stores with respect to a particular load (and of loads with respect to a particular store) allows a load-store execution controller constructed in accordance with the present invention to hold younger stores until the completion of older loads (and to hold younger loads until completion of older stores). Address matching logic allows a load-store execution controller constructed in accordance with the present invention to avoid load-store (and store-load) dependencies. Hierarchical scan logic supplies the relative age indications of loads with respect to stores (and of stores with respect to loads).

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