RPT 127#
|| MAC P, *XAR2++,*XAR7++
上述汇编程序指令,在DSP2812定点DSP中运行时128个时钟周期,也就是一条指令1个时钟周期执行完成
但是在DSP28335浮点DSP中运行时间256时钟周期,也就是一条指令2个时钟周期执行完成;
TI官网手册给出的是兼容C28x 定点CPU。
为什么28335更慢了?
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