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7.关于后继地址的讨论微指令的后继地址问题就是微指令的执行次序问题。我们知道,计算机运行某程序就是执行一条条的机器指令。通常计算机中指令地址是顺序加1的,除非遇到转移性指令才可能改变指令地址这种逐条递增的顺序。我们自然联想到在微程序控制中微指令地址(简称微地址)也可以设计成顺序计数式的,这种方法简便易行。与机器程序的运行类似的是要解决微指令执行顺序的改变问题。这可以通过转移性微指令来解决。转移地址如何获得?机器程序中转移地址是由转
7. Discussion on Successor Addresses The issue of the successor address of microinstructions is the order of execution of microinstructions. We know that a computer running a program is to execute a piece of machine instructions. Usually the address of the instruction in the computer is incremented by one, unless the instruction of the branch can change the instruction address in ascending order. We naturally think of micro-program control in the micro-instruction address (referred to as micro-address) can also be designed to count order, this method is simple and easy. Similar to the operation of a machine program, the problem of changing the execution order of the microinstructions is solved. This can be solved by the transfer of micro-instructions. How to get the transfer address? The transfer address in the machine program is transferred