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SUBDESIGN operator |
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( |
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b1, b2, b3, b4 : input; |
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isAdd : input; |
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o1, o2, o3, o4 : output; |
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) |
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BEGIN |
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if isAdd THEN |
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o1 = b1; |
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o2 = b2; |
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o3 = b3; |
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o4 = b4; |
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ELSE |
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o1 = !b1; |
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o2 = !b2; |
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o3 = !b3; |
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o4 = !b4; |
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END IF; |
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END; |
