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若AX=349DH, CX=0F00H。则执行指令AND AX, CX后, AX的值是( )

单选题
2021-09-02 16:39
A、0090H
B、000DH
C、3000H
D、0400H
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正确答案
D

试题解析

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执行完下列程序段后,AX=()
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逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
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若AX=349DH, CX=0F00H。则执行指令AND AX, CX后, AX的值是( )

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(6)PUSH ES:[BP]
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执行下列指令后,AX的值为 MOV AX,1234H MOV CL,4 ROL AX,CL DEC AX MOV CX,4 MUL CX

执行下列指令后,(AX)=()。
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下列指令中,不正确的指令是( )。Ⅰ MOV AX,BXⅡ ADD AX,CLⅢ MOV 2000H,CXⅣ MOV AX.[DX]

有如下程序:
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MOV AL,BL
MOV CL,4
SHR AL,CL
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OR BH,30H
MOV AL,BL
AND AL,OFH
MOV BL,AL
OR BL,30H
INT 3
运行上面程序后,BH=(),BL=()

阅读程序,说明程序执行后BH,BL,AL,CL的值;
MOV BL, 72H
MOV AL, BL
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OR BL, 30H
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若设定的条件表达式为“<60 Or>100”表示( )。
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