| 摘要 |
PURPOSE:To enable to change a value of exponent in response to key operation inputting the exponent. CONSTITUTION:KD and mD are storage sections to store constants for addition and subtraction at the depression of a constant addition key K and a constant subtraction key m, and a binary coded decimal ''3'' is stored in the storage sections KD and mD as an initial value at the application of power supply. In altering the content of the KD and mD, a CPU waits for the depression of key, and when an INV key is depressed, the CPU waits for the depression of the next key. When a SETK/x10<k> key K is depressed, it means the selection of a function of SETK and the CPU waits for the operation of the next numeric key. If a numeric key 4, for example, is depressed, the numeral 4 depressed is stored in the section KD. In altering the section mD, the operation is made as the INV key, a SET m/10<m> key, and numeric keys. |
