| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine having characteristics in a CPU register and a program using the CPU register.SOLUTION: A game machine comprises a microcomputer having a CPU, ROM, and RAM therein. The CPU has at least a first register and a second register. The first register can set a value in a first method in which a value is set with a direct value. The CPU has, of functions in which a value is set in the first register, only a function in which a value is set in the first method as a function to be performed on the basis of reception of an LD instruction. The second register is a flag register which has a bit to function as a first flag and a bit to function as a second flag. A control program includes an instruction to change the first flag.SELECTED DRAWING: Figure 30 |
