| 摘要 |
PROBLEM TO BE SOLVED: To enhance security relating to a random number circuit loaded on a game machine.SOLUTION: A game machine comprises: random number circuit monitoring means (for example, an update monitoring circuit 537) that can monitor occurrence of abnormality in a frequency of a clock signal for a random number (for example, an external clock signal) for updating numerical data stored by numerical value storage means (for example, a hard latch random number value register or a soft latch random number value) of a 16-bit random number circuit 508b, and an update state of the numerical data stored by the numerical value storage means. The game machine extracts the numerical data from the different numerical value storage means (for example, the hard latch random value register) between when variably displaying identification information in first variable display means (for example, a first special pattern display 8a) and when variably displaying the identification information in second variable display means (for example, a second special pattern display 8b). |
