Branch target buffer and method of use

Details Branch target buffer and method of use Branch target buffer and method of use

2005-03-16

2008-12-30

Dinh, Son (Department: 2824)

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

C365S049130, C712S237000, C712S238000

Reexamination Certificate

active

07471574

ABSTRACT:
A branch target buffer (BTB) storing a data entry related to a branch instruction is disclosed. The BTB conditionally enables access to the data entry in response to a word line gating circuit associated with a word line in the BTB. The word line gating circuit stores a word line gating value derived from branch history data related to the instruction. Additionally, a branch prediction unit and a processor incorporating the BTB are disclosed, along with methods for operating the BTB.

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