| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine in which in data transfer between a game control means and a variable display control means, the variable display control means can be prevented from taking wrong block data so as to improve the reliability of data transfer. SOLUTION: When receiving a command signal from CPU of a basic circuit, CPU of a CRT control circuit takes block data plural times for one block data(0088H, 0090H), compares the data taken plural times with each other to discriminate whether they match or not, and discriminates whether the received block data is proper or not (0094H, 016BH). |
