芯片为2812,仿真器为xds100v3,在仿真时发现几条语句的执行时间出现如下现象:在第一条语句设置一个断点,在最后一条语句设置另一个断点,使用单步仿真从第一个断点一步一步走到最后一个断点的机器周期数与从第一个断点直接走到最后一个断点的机器周期数字不一样,这是什么原因呢?
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