| 摘要 |
PURPOSE:To perform multiplication in a short processing time by the multiplying circuit which obtains a product by multiplying a multiplier and a multiplicand represented in binary notation by each other and to make its scale smaller than that of a parallel multiplying circuit. CONSTITUTION:This multiplying circuit is equipped with a digit number detector 5 which detects the positions of '1' of the multiplier, a barrel shifter 7 which shifts the multiplicand to the left from low-order bits to high-order bits by the number of digits detected by the digit number detector 5, and an adder 8 which adds the multiplicands shifted by the barrel shifter 7 in order. |
