CIRCUIT PROCESSOR AND CIRCUIT DIVISION METHOD

PURPOSE:To perform a circuit division where no deviation exists in the number of cell and the number of coupling between circuits is not increased, regarding a circuit processor simulating a logic circuit and circuit division method. CONSTITUTION:The circuit processing means 3 is provided with the circuit division means 5 dividing a circuit based on the number of external coupling to be the number of cell in a circuit and the number of coupling between circuits and the number of internal coupling to be the number of coupling between the cells within the circuit. When the number of cell of the circuit A is defined as ¦A¦, the number of the internal coupling of the cell of the circuit A is defined as CA, the number of the cell of a circuit B is defined as ¦B¦, the number of the the internal coupling of the cell of the circuit B is defined as CB and the number of the external coupling between the circuit A and the circuit B is defined as CAB when the circuit division means 5 divides an arbitrary circuit into the circuit A and the circuit B, the coupling ratio between the circuit A and the circuit B is defined RAB for every plural divisions of the circuit, RAB=CAB/(¦A¦*¦B¦*CA*CB) is calculated and the RAB selects a minimum division.