| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of surely backing up and preserving required data in a RAM and surely utilizing the preserved data after power source restoration. SOLUTION: When power to this game machine is supplied, a CPU first confirms whether or not data set in a backup parity data area in the RAM capable of power backup for a prescribed period are '00'. When the data set in the backup parity data area are not '00', parity diagnosing (checksum confirmation) is performed. Then, when the result of the checksum confirmation is proper, a power failure restoration processing is executed.
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