| 摘要 |
PURPOSE:To attain high speed operation by operating and outputting different coordinate data based on respective coordinate data by first and second arithmetic means. CONSTITUTION:A first arithmetic means is provided with a first inverter 61 which inverts the sign of coordinate data yi shifted by m-number of bits, a first adder 51 which adds coordinate data xi and the output of the inverter 61, a second inverter 62 which inverts the sign of coordinate data xi shifted by (2m+1)-number of bits, and a second adder 52 which inputs the output of the adder 51 and that of the inverter 62 and outputs coordinate data xi+1. The second arithmetic means is provided with a third adder 53 which adds coordinate data yi and coordinate data xi shifted by m-number of bits, a third inverter which inverts the sign of coordinate data yi shifted by (2m+1)-number of bits, and a fourth adder 54 which adds the output of the adder 53 and that of the inverter 63. Coordinate data xi+1 and yi+1 are operated and outputted in this manner to increase the operation speed. |
