| 摘要 |
PROBLEM TO BE SOLVED: To provide an RAM clearing means which does not require continuously pressing of an RAM-clearing button also on an operator's side, does not execute RAM-clearing processing affected by noise by mistake, etc., and can alleviate processing load on a main control board side. SOLUTION: A controlling means on forcible erasure of information (RAM-clearing control means) samples an input port (input/output port) a plurality of times in a given time period, and when it is in an ON state a plurality of predetermined times or more, it erases the information temporarily memorized in temporary memorizing means of a game-progression information (back-up information temporary memorizing means). COPYRIGHT: (C)2011,JPO&INPIT
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