GAME MACHINE

PROBLEM TO BE SOLVED: To reduce program capacity for controlling a game machine.SOLUTION: In a main control board of a Pachinko machine 1, when a CPU 111 outputs in/out commands for accessing an IO, an area section determination part 120 changes an access destination to one of the IO and a RAM 116 according to an address value, and an IO identification signal or a chip selector signal MCS0 is turned active according to the result. Thus, the RAM 116 can be accessed by the in/out commands. However, when it is instructed to clear the RAM on power on, 0 is written to the entire area by a store command for memory access. Therefore, RAM clear processing is achieved by a single loop, thus restraining the program capacity.