| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the processing load of a main control part while improving security strength by a simple means. <P>SOLUTION: A game machine 1 includes an intermediate control part 180 provided between a main control part 110 and a peripheral control part 300. The main control part 110 has a test value generating part 500 capable of generating an error test value by a plurality of generation methods, and a transmitting part 550 for transmitting a command to the intermediate control part 180. The test value generating part 500 is provided between a main CPU 110a and the transmitting part 550 in order to add an error test value of a command generated in the past to a command to be currently transmitted. The test value generating part 500 changes the generation method of the error test value on the basis of the transmitted control command. An input/output control method inside the test value generating part 500 is different from that of between the test value generating part 500 and the outside. The intermediate control part 180 generates an error test value for verification, tests the validity of the received command, and allows the peripheral control part 300 to execute the processing according to the test result. <P>COPYRIGHT: (C)2013,JPO&INPIT |
