发明名称 |
Modifying a logic implementation by swapping inputs of fanout-free cones |
摘要 |
An implementation of a logic description is improved. The implementation has two signals coupled to two inputs of a fanout-free cone. A swap function is determined of the inputs of the fanout-free cone. The swap function indicates whether there is a difference at an output of the fanout free cone between the fanout-free cone with and without swapping the two signals between the two inputs of the fanout-free cone. A do-not-care function of the inputs of the fanout-free cone is determined for the logic description. The do-not-care function indicates that a modification of the output of the fanout-free cone is not observable at the primary outputs of the logic description. A modified implementation of the logic description is output in response to the do-not-care function covering the swap function. The modified implementation of the logic description has the two signals swapped between the two inputs of the fanout-free cone.
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申请公布号 |
US7904842(B1) |
申请公布日期 |
2011.03.08 |
申请号 |
US20080006985 |
申请日期 |
2008.01.08 |
申请人 |
XILINX, INC. |
发明人 |
JANG TETSE;CHAN VI CHI;CHUNG KEVIN |
分类号 |
G06F17/50 |
主分类号 |
G06F17/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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