将微程序存入到高速的只读存储器中，机器指令的解释执行通过读取对应的微程序来完成，存储逻辑实现的控制器称为微程序控制器。

微指令的操作控制部分决定给出的微命令，顺序控制部分决定下一条微指令在只读存储器中的地址，由判别测试字段和后续直接地址构成。如果判别测试字段全为0，后续直接地址给出下一条微指令的地址；否则修改后续直接地址作为下一条微指令的地址。

-The micro-program into the high-speed read-only memory, the machine instructions interpreted by reading the corresponding micro-process to complete, store the logic controller implemented as micro-program controller. Microinstruction operation control part of the decision given micro-command, the control section determines the order in the next microinstruction address read-only memory, discrimination testing by the direct address form fields and follow-up. If the judge all the test field is 0, the address given in the follow-up directly under the address of a microinstruction　otherwise modify the address as a direct follow-up of the next microinstruction address.