| 摘要 |
PURPOSE:To confirm the operation of a program with a simple operation, by using information, which distinguishes an instruction inserted for program confirmation from other instructions, as a signal inhibiting the execution of the instruction for program confirmation. CONSTITUTION:An operating device 1 sends an address signal to a program storage device 2 and a storage device 3. The device 2 sends operation instructions to the device 1. AND between program information 12 from the device 3, where information of the instruction for program confirmation is stored, and a program confirmation input 13 which becomes logical 0 for program confirmation is operated in an AND gate 4. Consequently, since the input 13 is logical 0 when the program is confirmed, an execution inhibiting signal of the output of the gate 4 is not outputted, and the device 1 executes the instruction inserted for program confirmation. When it is unnecessary to confirm the program, the input 13 becomes logical 1, and a signal 15 of the output of the gate 4 is outputted. In this case, the execution of instructions of the device 1 is stopped. Thus, the execution of the instruction for program confirmation or the inhibition of the execution of it is selected easily. |
