| 摘要 |
PROBLEM TO BE SOLVED: To preserve necessary data and resume a game from a state when power is interrupted when power is restored at the time when unforeseen power interruption occurs due to blackout or the like and reliably save necessary data. SOLUTION: When a game machine is structured so as to judge whether final storage contents stored in a backup RAM area are normal or not on the basis of a checksum stored in the backup RAM area when power supply to a game machine is started and if they are normal, execute control so as to restore the controlling state to a state before power supply is stopped, on the basis of the final storage contents, as the checksum is stored in the first or last address of the backup RAM area, when confirming whether there is an error in a program of a method for producing a checksum, the confirmation can be made easily. Wasting of the RAM area will never occur.
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