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问 想请教：
  RPT     DDN
  MACD     *AR7-,COEFP,A
再循环过程中，COEFP的地址会不会变？

看到别人做的一个数字滤波器，用的就是以上的语句
如果COEFP的地址不变，那不是乘的都是一个系数？

刚开始ti的DSP,对这条指令还不是很清楚
谢谢大家 答 1: DescriptionThe MACD instruction multiplies a data-memory value by a program-memory value, adds the product to the source accumulator, and stores the result in that accumulator.  The data-memory value is copied into TREG and into the next address following the Smem address.  When this instruction is repeated, the program-memory address (in the program address register PAR) is incremented by 1.  Once the repeat pipeline is started, the instruction becomes a single-cycle instruction. 答 2: 强悍的指令