| 摘要 |
PURPOSE:To obtain a data processing function that is suitable for the relevant specifications just with designation of an input/output device, by separating the input/output devices from the data items related to these devices. CONSTITUTION:The input/output data processing is separated between the input/output devices 3 and the data items. A memory table contains a position information memory area where data are read out or written in accordance with an input device 2a and an output device 2b for a data item 2c to receive the input and output processings. Then a definition table 2 is set on said memory table and the correspondence is secured between an access subject defined by an instruction word and the input or output device. The accesses are given to the memory table via the instruction words and the input and output of data are carried out to the data items. Thus it is possible to carry out the input/output data processing after separating the instruction words from the data items. Then the processing functions are obtained in accordance with various specifications just by changing the relationship between the input or output device and the data items on the memory table. |
