| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot machine which prevents an illegal program from persistently residing in the unused areas of a memory means in a microcomputer for controlling games and carries out a power failure processing on the earliest possible stage without the generation of a multiplex interrupt along with the accurate accomplishment of a power failure processing by a subcontrol means. SOLUTION: A CPU 41a initializes the unused areas and the unused stack areas of a RAM 41c per game. The other interruption is forbidden during the execution of either one of a power-off interrupt processing and a timer interrupt processing and when the timing of the power-off interrupt and that of the timer interrupt are simultaneous, the power-off interrupt processing is executed preferentially. When a voltage drop signal is inputted during the execution of the timer interrupt processing, the power-off interrupt processing is executed standing by for the end of the timer interrupt processing. A CPU 91a sets a data for parity adjustment onto a RAM 91c in the timer interrupt processing (sub) which is periodically executed without depending on a command from a game control board 40. COPYRIGHT: (C)2006,JPO&NCIPI
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