(19) United States
(12) Patent Application Publication (io) Pub. No.: US 2005/0071822 Al
DeWitt, JR. et al. (43) Pub. Date: Mar. 31,2005
(54) METHOD AND APPARATUS FOR
COUNTING INSTRUCTION AND MEMORY
LOCATION RANGES
(75) Inventors: Jimmie Earl DeWitt JR., Georgetown,
TX (US); Frank Eliot Levine, Austin,
TX (US); Christopher Michael
Richardson, Austin, TX (US); Robert
John Urquhart, Austin, TX (US)
Correspondence Address:
IBM CORP (YA)
C/O YEE & ASSOCIATES PC
P.O. BOX 802333
DALLAS, TX 75380 (US)
(73) Assignee: International Business Machines Corporation, Armonk, NY
(21) Appl. No.: 10/675,872
(22) Filed: Sep. 30, 2003
Publication Classification
(51) Int. CI.7 G06F 9/44
(52) U.S. C I 717 131
(57) ABSTRACT
A method, apparatus, and computer instructions in a data processing system for processing instructions and monitoring accesses to memory location ranges. An instruction for execution is identified. A determination is made as to whether the instruction is within a contiguous range of instructions. Execution information relating to the instruction is identified if the instruction is within the contiguous range of instructions. With memory location accesses, an access to a memory location is identified. A determination of whether the memory location is within a contiguous range of memory locations is made. Access information is identified if the memory location is within the contiguous range of memory locations.
