(12) United States Patent ao) Patent No.: us 6,457,118 Bi
Peng et al. (45) Date of Patent: Sep. 24,2002
(54) METHOD AND SYSTEM FOR SELECTING AND USING SOURCE OPERANDS IN COMPUTER SYSTEM INSTRUCTIONS
(75) Inventors: Chih-Jui Peng, San Jose, CA (US);
Glenn Ashley Farrall, Bristol (GB);
Sivaram Krishnan, Los Altos, CA
(US)
(73) Assignee: Hitachi LTD, Tokyo (JP)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 09/410,549
(22) Filed: Oct. 1, 1999
(51) Int. C I. G06F 9/38
(52) U.S. CI 712/226; 712/208; 712/213;
712/216
(58) Field of Search 712/216, 217,
712/208, 210, 213, 226
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