Electrical computers and digital processing systems: processing – Processing control – Arithmetic operation instruction processing
Reexamination Certificate
2011-03-08
2011-03-08
Chan, Eddie P (Department: 2183)
Electrical computers and digital processing systems: processing
Processing control
Arithmetic operation instruction processing
C712S300000
Reexamination Certificate
active
07904700
ABSTRACT:
A software-accessible special purpose register is architected into a processing unit in order to implement persistent vector multiplexer control of a vector-based execution unit. A persistent swizzle instruction is defined in an instruction set for the vector-based execution unit and is used to cause state information to be stored in the special purpose register such that the operand vectors processed by subsequent vector instructions executed by the vector-based execution unit will be selectively shuffled using the persisted state information. As a result, when multiple vector instructions require a common custom word ordering for one or more operand vectors, a single persistent swizzle instruction may be used to select the desired custom word ordering for all of the vector instructions.
REFERENCES:
patent: 6141673 (2000-10-01), Thayer et al.
patent: 2003/0018737 (2003-01-01), Buhlman et al.
patent: 2005/0198473 (2005-09-01), Ford
patent: 2006/0015705 (2006-01-01), Raubuch
patent: 2006/0227966 (2006-10-01), Knowles
patent: 2007/0013704 (2007-01-01), MacWilliams et al.
patent: 2008/0148029 (2008-06-01), Luc et al.
patent: 2009/0228681 (2009-09-01), Mejdrich et al.
patent: 2010/0106940 (2010-04-01), Muff et al.
U.S. Patent and Trademark Office, Office Action issued in related U.S. Appl. No. 12/045,221, dated May 18, 2010.
U.S. Patent and Trademark Office, Office Action issued in related U.S. Appl. No. 12/256,550, dated Jan. 28, 2010.
U.S. Patent and Trademark Office, Notice of Allowance issued in related U.S. Appl. No. 12/256,550, dated Jun. 1, 2010.
Mejdrich Eric Oliver
Muff Adam James
Shearer Robert Allen
Tubbs Matthew Ray
Chan Eddie P
International Business Machines - Corporation
Partridge William B
Wood Herron & Evans LLP
LandOfFree
Processing unit incorporating special purpose register for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Processing unit incorporating special purpose register for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processing unit incorporating special purpose register for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2698552