当执行 ADD AX, BX 指令后,若 AX 的内容为 4E52H 时,设置的奇偶标志位 PF=0,下 面的叙述正确

若AX=3500H,CX=56B8H,当AND AX,CX指令执行后,AX=()

A1400H

B77F8H

C0000H

D0FFFFH

若 (AX=1234H,(DX=89ABH,执行 XCHG AX,DX指令后 ,AX 、 DX 中的内容应()

A (AX=1234H (DX=1234H

B (AX=12ABH (DX=8934H

C (AX=89ABH (DX=1234H

D (AX=89ABH (DX=89ABH

A.MOV AX,TABLE

B.MOV AX,[TABLE]

C.LEA AX,TABLE

D.AND AX,LABLE

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

A.(AX)=0050H

B.(AX)=0012H

C.(AX)=1234H

D.(AX)=3412H

设 (AL=04H,(BL=0F8H,执行 MUL BL指令后,结果()

A (AX=03E0H

B (AX=0FEE0H

C (AX=0032H

D (AX=00E0H

设 (AL=63H (BL=29H 执行下面指令后 DAS AX的内容()

A (AX=0304H

B (AX=0034H

C (AX=0034H

D (AX=0304H

设 (AL=63H (BL=29H 执行下面指令后 SUB AL,BL DAS AX的内容()

A (AX=0304H

B (AX=0034

C (AX=0034H

D (AX=0304

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.A.NOT AX

B.B.TEST AX,8000H JNS MINUS JNZ MINUS

C.C.SHL AX,1

D.D.OR AX,AX JC MINUS JZ MINUS