Forwarding load data to younger instructions in annex

Details Forwarding load data to younger instructions in annex Forwarding load data to younger instructions in annex

2005-08-09

2005-08-09

Tsai, Henry W. H. (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Processing control for data transfer

C712S217000

Reexamination Certificate

active

06928534

ABSTRACT:
A method and computer system for bypassing load data to younger instructions are provided. The method and computer system contemplate a microprocessor that manages interlock conditions for load instructions and that supports speculative and out-of-order execution of load instructions. A freshest value for a source register is located among the entries of a load annex and one or more non-load annexes. The contents of the freshest value is bypassed to a current instruction for execution.

REFERENCES:
patent: 5748935 (1998-05-01), Tremblay et al.
patent: 5878245 (1999-03-01), Johnson et al.
patent: 5887152 (1999-03-01), Tran
patent: 5898854 (1999-04-01), Abramson et al.
patent: 6389529 (2002-05-01), Arimilli et al.
patent: 6618803 (2003-09-01), Hannum et al.

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