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[单选题]
指令MOV[BX+SI+5],AX,其中目的操作数的寻址方式为()。
A.间接寻址
B.基址寻址
C.基址变址寻址
D.变址寻址
查看答案
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A.间接寻址
B.基址寻址
C.基址变址寻址
D.变址寻址
(1) MOV AX, TABLE
(2) LEA AX, TABLE
A.MOV AX, BX
B.MOV AX, [0001H]
C.MOV AX, 1
D.MOV AX, [BX+1]
A.MOV AX ,BUFl*BUF2
B.MOV AX ,BUF1/BUF2
C.MOV AX ,BUF1+ES :BUF2
D.MOV AX ,BUF2-BUF1
使状态标志位 CF 清零的错误指令()
A CLC
B XOR AX,AX
C SUB AX,AX
D MOV CF,0
A.OR AX,AX
B.SUB AX,AX
C.MOV C
D.0
E.CLC
XOR AX,AX MOV AL,90H CWD 执行上述指令后,结果为()
A (DX=0000, (AX=FF90H
B (DX=FFFFH,(AX=0090H
C (DX=FFFFH,(AX=FF90H
D(DX=0000, (AX=0090H
下列指令执行后对源和目的操作数均无影响的是()
A MOV [BX+2] , AX
B SUB AX , 2467H
C SBB [SI] , BX
D.CMP AX , BX
下列指令执行后对源操作数和目的操作数均无影响的()
A MOV [BX+2],AX
B SUB AX,2476H
C SBB [SI],BX
D CMP AX,BX
A.MOV BX,10100B
B.MOV DS,AX
C.ADD BX,[10100H]
D.MOV BX,MYDAT[SI]