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比如，我要做一个 4*4 的矩阵，乘以一个 4*2 的矩阵，有什么快速指令或 函数实现么？ 谢谢
C66x上提供了CMATMPY指令实现1*2与2*2矩阵的乘法，还有其他dcmpy等一次做2个复乘的指令，具体可以查看C66x instruction set user guide。
