| 摘要 |
PURPOSE:To check matching between the input data and a program without using any special instruction for check and also in case a data input time, by providing a data attribute designating field for input data and a program language input means including an input instruction which indicates the data input. CONSTITUTION:A flag showing the attribute of the data to be fed is set in a system working area of a main memory which undergoes the access control by a CPU. For the program executing procedure, it is decided whether or not a program pointer PP is showing the termination of a program area. If the PP does not show said termination, the data (instructions, sentences) starting at an address position shown by the PP is executed. When an instruction (sentence) is executed, the PP is replaced in accordance with the instruction. This instruction means an input instruction which designates the input of data from an input device, an instruction which designates the four rules of arithmetic, etc. In case, the PP shows the termination of the program area, the processing is carried out for program end and the control is shifted to the 1-row input processing.
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