| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for designing a circuit of computing units used for digital signal processing, and an integrated circuit manufactured by the method. SOLUTION: The circuit design method comprises creating a program of desired digital signal processing as adding directives to operations subject to overflow determination (S104), performing a behavioral synthesis based on the program (S108), generating an RTL circuit with overflow detection circuits added to the directive-added target operations (S110), performing a behavioral verification of the RTL circuit (S112), and producing detection results of the overflow detection circuits (S114). When the RTL circuit is regenerated in accordance with the behavioral verification results, the output bit length of the target operations can be optimized in accordance with the overflow detection results to generate an optimized RTL circuit without overflows. COPYRIGHT: (C)2009,JPO&INPIT
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