AND AL,AL
JZ BRCH1
RCR AL,1
JZ BRCH2
RCL AL,1
INC AL
JZ BRCH3
:
上述程序運行后,試回答:
(1)當(AL)=?時,程序轉(zhuǎn)向BRCH1
(2)當(AL)=?時,程序轉(zhuǎn)向BRCH2
(3)當(AL)=?時,程序轉(zhuǎn)向BRCH3
①(AL)=0,②(AL)=1,③(AL)=-1
STRING
DB‘ABCDEFGHIJ’
MOVAH,01從鍵盤輸入字符1~9
INT21H
ANDAL,0FH
DECAL
XORAH,AH
MOVBX,OFFSETSTRING
ADDBX,AX
MOVBL,[BX]
MOVAH,02H
;顯示輸出
INT21H
:
試回答: