汇编语言：设置标志位 SF的值

汇编语言中，设置标志位 SF 的值是通过运算结果的最高位来确定的。如果最高位为1，则 SF 置为1，表示结果为负数；如果最高位为0，则 SF 置为0，表示结果为非负数。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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