执行下列程序段后,AL=()。 MOV AL,64 MOV CL,2 SHR AL,CL MOV CL,AL SHR AL,2 ADD AL,CL
A.16
B.20
C.32
D.64
A.MOV AL,10000101B OUT 67H,AL
B.MOV AL,10000100B OUT 67H,AL
C.MOV AL,00000101B OUT 67H,AL
D.MOV AL,00000100B OUT 67H,AL
A.MOV AL,ABC
B.MOV AL,ABC1
C.MOV AL,[1000H]
D.MOV AL,[BX]
A.A. MOV AL, 4IH MOV (2100H),AL INC AL MOV (2100H), AL
B.B. MOV SI,210 0H MOV(SI), 'A' INC SI MOV(SI), 'B'
C.C. MOV AX, 4142H MOV (2100H),AX
D.D. MOVAX, 'AB' MOV (2IOOH), AX
A、MOV AL,04H MOV DX,0348H OUT DX,AL MOV DX,0349H AA: IN AL,DX TEST AL,08H JZ AA MOV DX,0348H IN AL,DX HLT
B、MOV DX,0348H OUT DX,AL MOV DX,0349H AA: IN AL,DX TEST AL,08H JZ AA MOV DX,0348H IN AL,DX HLT
C、MOV AL,04H MOV DX,0348H OUT DX,AL MOV DX,0349H AA: IN AL,DX TEST AL,10H JZ AA MOV DX,0348H IN AL,DX HLT
D、MOV AL,04H MOV DX,0348H OUT DX,AL MOV DX,0349H AA: IN AL,DX TEST AL,08H JNZ AA MOV DX,0348H IN AL,DX HLT
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