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MCS-51单片机中立即寻址方式中,MOV,A,#52H,意思是把立即数52H送到累加器A中.书上说
MCS-51单片机中立即寻址方式中,MOV,A,#52H,意思是把立即数52H送到累加器A中.书上说
发布时间:2021-02-28 00:58:54
MCS-51单片机中立即寻址方式中,MOV,A,#52H,意思是把立即数52H送到累加器A中.书上说它的机器码是74H 52H,74H 是怎么来的?
网友回答
这是INTEL公司规定的.MOV A,#DATA, 机器不会识别是什么 ,那么要转换成机器能识别的代码,也就是机器码.而MOV A,#DATA的机器码就规定为 74 DATA (这2 个数都 是16进制的)
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