| 摘要 |
PURPOSE:To reduce the error to be stored by rounding up/down a low-order bit by adding the average value of low-order bit data to a high-order bit. CONSTITUTION:When the values of outputs a26-a20 from an arithmetic circuit 13 are under the condition of A2=0000001(2), the values of outputs Ms26-Ms20 from full address 16-22 are changed like Ms2=0000001 Ms2=0000010 Ms2=0000011 Ms2=00000100 Ms2=0000001. As a result, the values of inputs b24-b20 to a result arithmetic circuit 14 are changed like B2=00000(2) B2=00000(2) B2=000000(2) B2=000001(2) B2=00000(2). In such a case, when the average value of the B2 is adopted, the condition of B2/4=0000001(2) is established and it is equal with the value of the A2. Thus, the accumulation of error can be reduced. |
