MOOG D136-001-007 穆格控制器 两种控制器各有长处和短处

MOOG D136-001-007  穆格控制器

控制器分组合逻辑控制器和微程序控制器，两种控制器各有长处和短处。组合逻辑控制器设计麻烦，结构复杂，一旦设计完成，就不能再修改或扩充，但它的速度快。微程序控制器设计方便，结构简单，修改或扩充都方便，修改一条机器指令的功能，只需重编所对应的微程序；要增加一条机器指令，只需在控制存储器中增加一段微程序，但是，它是通过执行一段微程。具体对比如下：组合逻辑控制器又称硬布线控制器，由逻辑电路构成，完全靠硬件来实现指令的功能。

The controller is divided into combinational logic controller and microprogram controller, each of which has its own advantages and disadvantages. The design of combinational logic controller is troublesome and its structure is complex. Once the design is completed, it can't be modified or expanded, but its speed is fast. The microprogram controller is easy to design, simple in structure, and convenient to modify or expand. To modify the function of a machine instruction, only the corresponding microprogram needs to be reprogrammed; To add a machine instruction, just add a microprogram in the control memory, but it is by executing a microprogram. The specific comparison is as follows: combinational logic controller, also known as hard-wired controller, is composed of logic circuits, which completely rely on hardware to realize the function of instructions.

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