Method of renaming registers in register file and...

Details Method of renaming registers in register file and... Method of renaming registers in register file and...

2006-10-10

2006-10-10

Tsai, Henry W. H. (Department: 2181)

Electrical computers and digital processing systems: processing

Processing architecture

Long instruction word

C712S217000

Reexamination Certificate

active

07120780

ABSTRACT:
A microprocessor for processing instructions comprises multiple clusters for receiving the instructions, each of the clusters having a plurality of functional units for executing the instructions, multiple register sub-files each having multiple registers for storing data for executing the instructions, wherein each of the clusters is associated with corresponding one of the register sub-files so that an instruction dispatched to a cluster is executed by accessing registers in a register sub-file associated with the cluster to which the instruction is dispatched, a register-renaming unit for renaming target registers in an instruction with registers in a register sub-file associated with a cluster to which the instruction is dispatched, and issue-queue units each of which is associated with a corresponding one of the clusters, wherein an issue-queue unit holds instruction renamed by the register-renaming unit until the renamed instruction is issued to be executed in a cluster associated with the issue-queue unit.

REFERENCES:
patent: 5574939 (1996-11-01), Keckler et al.
patent: 5632023 (1997-05-01), White et al.
patent: 5644780 (1997-07-01), Luick
patent: 2001/0004755 (2001-06-01), Levy et al.
patent: 2001/0042190 (2001-11-01), Tremblay et al.
patent: 2002/0042909 (2002-04-01), Van Gageldonk et al.

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