我们测到在6747上,做定点浮点加法需要两个指令周期,求根最快需要151个指令周期,而在300Mhz主频时,这个速度太慢了,而ADI的一款DSP,主频在100Mhz时,求根只需要45ns,为什么两者能相差这么大呢?谢谢您的回答
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