Reducing the fetch time of target instructions of a...

Details Reducing the fetch time of target instructions of a... Reducing the fetch time of target instructions of a...

2005-04-19

2008-10-14

Dollinger, Tonia L. M. (Department: 2181)

Electrical computers and digital processing systems: processing

Processing control

Branching

C712S238000

Reexamination Certificate

active

07437543

ABSTRACT:
A method and processor for reducing the fetch time of target instructions of a predicted taken branch instruction. Each entry in a buffer, referred to herein as a “branch target buffer”, may store an address of a branch instruction predicted taken and the instructions beginning at the target address of the branch instruction predicted taken. When an instruction is fetched from the instruction cache, a particular entry in the branch target buffer is indexed using particular bits of the fetched instruction. The address of the branch instruction in the indexed entry is compared with the address of the instruction fetched from the instruction cache. If there is a match, then the instructions beginning at the target address of that branch instruction are dispatched directly behind the branch instruction. In this manner, the fetch time of target instructions of a predicted taken branch instruction is reduced.

REFERENCES:
patent: 5748976 (1998-05-01), Taylor
patent: 5842008 (1998-11-01), Gochman et al.
patent: 6230260 (2001-05-01), Luick
patent: 6289444 (2001-09-01), Nair
patent: 6332190 (2001-12-01), Hara
patent: 6526502 (2003-02-01), Col et al.
patent: 6598154 (2003-07-01), Vaid et al.
patent: 2002/0188833 (2002-12-01), Henry et al.
patent: 2002/0188834 (2002-12-01), McDonald et al.
patent: 2002/0194464 (2002-12-01), Henry et al.
patent: 2003/0212882 (2003-11-01), Bonanno et al.
patent: 2004/0168042 (2004-08-01), Lin

Affiliated with

Also associated with

Rating

Reducing the fetch time of target instructions of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reducing the fetch time of target instructions of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reducing the fetch time of target instructions of a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4005496