| 摘要 |
PURPOSE:To reduce the number of storage area and perform all processings for calculation with mechanical operation by using an operation flag table where counter values in a calculating equation are indicated collectively as a bit individually at each addition and substraction. CONSTITUTION:Counter values of a numerator term and a denominator term of division and addition and subtraction of individual terms of multiplication in the calculating equation are divided to an addition part and a subtraction part and counter numbers are allowed to correspond to a 8-bit number, thus generating an operation flag table 10. A calculating equation P=(U4-U1+U5)/(U2+ U0-U3) is stored in an auxiliary storage 11 and is sent to a central processing unit (CPU) 12, and the operation flag table 10 is generated in accordance with the calculating equation and is stored in an auxiliary storage 13. Counter values Ui are taken out from the operation flag table and are divided to be added to the addition flags and subtraction flags. The differential value between the addition value and the subtraction value of the numerator part is defined as a numerator, and the differential value between the addition value and the subtraction value of the denominator part is defined as a denominator, and the answer of the calculating equation is obtained by division. |
