| 摘要 |
PROBLEM TO BE SOLVED: To enable a sure transmission of control command from a game control means by a display control means by performing display control in such a way that it is determined that a correct control command is received when same control commands are taken in continuously specified times in an effective period indicated by an effective signal. SOLUTION: A display control CPU 101 reads data of 1 byte from an input port alloted to perform input of display control command, and the condition of INT signal is read thereby. In the case where the INT signal is ON, the received display control command data is the same as the command data received just before, and the value of a display communication couter does not reach a specified maximum value, the value of the counter is added with one (1). Then, when the value of the counter is e.g. three (3), the CPU 101 stores the received display control command in a received command storing area, and performs display changeover or the like based on the display control command data. |
