在《See MIPS Run》的Chapter 9 Reading MIPS Assembly Language中，提到到这样一段代码：

We’ll use the same example as in Chapter 8: an implementation of the C library function strcmp(). But this time we’ll include essential elements of assembly syntax and also show some hand-optimized and -scheduled code. The algorithm shown is somewhat cleverer than a naïve strcmp() function; we’ll start with this code—still in C—in a form that has all the operations separated out to make them easier to play with, as follows:

int strcmp (char *a0, char *a1)
{
    char t0, t1;
    while (1) {
        t0 = a0[0];
        a0 += 1;
        t1 = a1[0];
        a1 += 1;
        if (t0 == 0)
            break;
        if (t0 != t1)
            break;
    }
    return (t0 - t1);
}

图片版的原文在此：

不是很懂 t0 = a0[0];t1 = a1[0];这个为什么放在while循环里。。。这样难道不是每次循环都从首字符开始了么。。。那么怎么完成字符串的比较呢？

还要一个疑问是。。。if (t0 == 0)难道不应该是if (t0 =='\0')么。。。