| 摘要 |
PURPOSE:To make it possible to increase an arithmetic processing speed greatly by simplifying a program, by making it possible to substitute an accumulator and source mutually for an operand term and operator term by providing a selecting circuit. CONSTITUTION:Selecting circuit 9 is provided with gate circuits 10 and 11 provided between accumulator 5 and operand term 6 of arithmetic logic part 4 and gate circuits 12 and 13 provided between source 8 and operator term 7. Consequently, accumulator 5 and source 8 are not fixed for operand term 6 and operator term 7 and data of accumulator 5 and source 8 can be transferred to operand term 6 and operator term 7 or operator term 7 and operand term 6 respectively. Therefore, the need for the arithmetic step of the temporarily stand-by storage of the arithmetic results from the accumulator and reloading from the storage address is eliminated, and consequently the program is simplified, increasing the arithmetic processing speed greatly. |
