| 摘要 |
PROBLEM TO BE SOLVED: To detect machine activation by an unauthorized reset operation and to prevent unauthorized actions. SOLUTION: A slot machine 100 is provided with a latch circuit part 20-18 for holding a storage state in a first state for a prescribed time immediately after program activation corresponding to a power supply operation from a non-power state, changing the storage state from the first state to a second state and holding it by the write control of a CPU 20-1 after the prescribed time elapses. On the basis of the storage state of the latch circuit part 20-18 immediately after the program activation, whether the activation is that (initial activation) at the time of an initial power supply period from the non-power state or that (other-time activation) after a reset operation in a period other than the initial power supply period is judged. As the result of judgment, in the case of judging that the activation of the program is the other-time activation, it is considered as unauthorized activation, and by the control of the CPU 20-1, the detection of the unauthorized activation is reported and a restoration processing by the program activation is inhibited.
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