| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can put out the accurate number of prize balls in spite of abnormal power supply voltage. SOLUTION: When no service interruption signal is outputted in a priority interruption terminal NMI, a CPU 63 monitors a put-out instruction from a main control device via an interruption terminal INT, and when the service interruption signal is outputted in the priority interruption terminal NMI, the CPU 63 monitors the put-out instruction from the main control device via an input terminal IN. In case of this constitution, a put-out instruction is detected even when the put-out instruction reaches later than a service interruption signal. Therefore, because the put-out number of prize balls is accurately backed up to a RAM 65, the accurate number of prize balls is put out based on the accurate put-out number of the RAM 65 at the time of recovery from service interruption.
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