This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

2812和28335汇编指令差异问题



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?