PURPOSE: To enable even a beginner operator to easily produce a program by displaying various instruction panels where the contents of each instruction are transformed into a symbol and choosing one of those instruction panels to set it a designated position on a program production/display part.

CONSTITUTION: A display picture includes an editing/selecting panel display part 1a and a program production/display part 1b. The part 1a has the judging instructions to check whether the forward advance is possible 2a or impossible 2b, the enemies are visible 3a or invisible 3b, the friends are visible 4a or invisible 4b, etc. While the executing instructions include 'Move forward' 5, 'Turn to the left' 6, 'Shoot' 7, etc. Furthermore the control instructions include a jump instruction 8 (display 10 turned on for jumping destination) and an end instruction 9. These instructions are displayed and distributed selectively to the part 1b for production of a program.