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当指令中的操作数是指针时,应该在操作数前面加上“*”号。如图4-97所示,输入*AC1AC1是一个指针,MOVW指令决定了指针指向的是一个字长的数据。在本例中,存储在VB200和VB201中。
图4-97指针的使用
例如:MOVD&VB200,AC1。其含义是将VB200的地址(VB200的起始地址)作为指针存入AC1中。MOVW*AC1,AC0。其含义是将AC1指向的字送到AC0中去。
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