发明公开
EP2354939A1 Method and apparatus providing cobol decimal type arithmetic functions with improved performance
审中-公开
用于提供COBOL Dezimalarrythmiefunktionen具有改进性能的方法和装置
- 专利标题： Method and apparatus providing cobol decimal type arithmetic functions with improved performance
- 专利标题（中）： 用于提供COBOL Dezimalarrythmiefunktionen具有改进性能的方法和装置
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申请号： EP11152859.2申请日： 2011-02-01
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公开(公告)号： EP2354939A1公开(公告)日： 2011-08-10
- 发明人: Guenthner, Russel W. , Eckard, Clint B.
- 申请人： Bull HN Information Systems Inc.
- 申请人地址： 13430 N. Black Canyon Highway Pheonix, AZ 85029-1348 US
- 专利权人： Bull HN Information Systems Inc.
- 当前专利权人： Bull HN Information Systems Inc.
- 当前专利权人地址： 13430 N. Black Canyon Highway Pheonix, AZ 85029-1348 US
- 代理机构： Lang, Johannes
- 优先权： US658017 20100201
- 主分类号： G06F9/45
- IPC分类号： G06F9/45
摘要：
A method and apparatus is disclosed providing an improvement in performance for arithmetic computations by a computer system for calculations which include decimal numeric variables. The improvement in at least one embodiment includes use of a special compiler in cooperation with a special decimal numeric subroutine library. The compiler provides comparative alignment information based upon comparing alignments of a plurality of decimal variables. The decimal subroutine library can then provide improved performance at run time by utilizing the information compared by the compiler at compiler time rather than making those computations repeatedly at run time.
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