摘要
There are many different forms of loops used in programs. The indefinite loop and the conditional termination loop have already been used and several more forms will be used throughout the book. One of the simplest and most useful is the counting loop. The counting loop allows a sequence of instructions to be executed a set number of times. The program in figure 7.1 is an example of this; it is a program to input and sum four numbers.
摘要译文
程序中使用了许多不同形式的循环。已经使用了不定循环和条件终止循环，本书将使用更多形式。最简单和最有用的一个是计数循环。计数循环允许一系列指令被执行若干次。图7.1中的程序就是一个例子;它是一个输入和汇总四个数字的程序。
Anthony Woods[1]. Counting Loops. Assembly Language Assembled for the Sinclair ZX81[M].DE: Springer, 1982: 41-48