| 摘要 |
PURPOSE:To secure the coincidence between the display data and the internal holding data and thus to increase the operation accuracy of the continuous operation by memorizing the data before the rounding operation into the register in case the rounding operation result does not show an integer. CONSTITUTION:Operation part 4 carries out the operation by receiving the data from RAM2 which is a register possessing the memory capacity larger by one digit than the display digit number of display part 5. The operation result is given to memory M1 as well as to rounding circuit 4b to perform the rounding process to give rounding to the nearest whole number for the lowest digit of the data, and then given to memory M2. In this case, the result of the rounding process undergoes the judgement by integer decision circuit 8 whether it is an integer or not. And in case the result features an integer, the contents of M2 is written into RAM2; while the contents of M1 is written into RAM2 in case the result is not an integer respectively. As a result, the coincidence is obtained between the display data after the rounding process and the internal holding data, thus increasing the accuracy for the continuous operation. |
