| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the failure detection ratio of a processor without degrading the original performance of a program. <P>SOLUTION: The preprocessor (10) automatically duplexes an arithmetic operation by finding out any No OPeration (NOP) in a program (1) described in assembly language, and inserts a duplex pattern by referring to a duplex pattern file (11) without degrading the performance of the program (1). When it is impossible to duplex the arithmetic operation, the preprocessor (10) calculates a duplex degree based on the appearance frequency of the instruction before and after the insertion of the duplex pattern, and generates a random pattern by referring to the random pattern file about the instruction whose duplex degree is lower than that of another instruction, and inserts the generated random pattern into the program (1) without degrading the performance of the program. <P>COPYRIGHT: (C)2007,JPO&INPIT |
