Efficient execution and emulation of bit scan operations

Details Efficient execution and emulation of bit scan operations Efficient execution and emulation of bit scan operations

2004-06-24

2008-09-30

Do, Chat C (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07430574

ABSTRACT:
Methods are disclosed to implement bit scan operations using properties of two's complement arithmetic and compute zero index instructions. A data value may be provided and the most-significant or least-significant bit may be determined using the methods set forth herein.

REFERENCES:
patent: 4539549 (1985-09-01), Hong et al.
patent: 4592005 (1986-05-01), Kregness
patent: 4924421 (1990-05-01), Seguchi
patent: 4947358 (1990-08-01), Lamere et al.
patent: 5416783 (1995-05-01), Broseghini et al.
patent: 5526296 (1996-06-01), Nakahara et al.
patent: 5651121 (1997-07-01), Davies
patent: 5675617 (1997-10-01), Quirk et al.
patent: 6105032 (2000-08-01), Bunda et al.
patent: 6173300 (2001-01-01), Mahurin
Intel Corporation, “IA-32 Intel Architecture Software Developer's Manual”, pp. 3-52 to 3-55, vol. 2A: Instruction Set Reference, A-M, 1997-2004.
Intel Corporation, “Intel Itanium Architecture Software Developer's Manual”, pp. 3:43-44, 3:179-180, 3:164-166, 3:48, 3:186 and 3:743-45, vol. 3: Instruction Set Reference, Revision 2.1, Oct. 2002.
Baranz, L, et al., “IA-32 Execution Layer” a two-phase dynamic translator designed to support IA-32 applications on Itanium-based systems, 11 pages, IEEE, Computer Society, Proceedings of the 36th International Symposium on Microarchitecture (MICROS-36'03).

Affiliated with

Also associated with

Rating

Efficient execution and emulation of bit scan operations does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Efficient execution and emulation of bit scan operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficient execution and emulation of bit scan operations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3990320