你可能喜欢
问答题
AND AL,AL
JZ BRCH1
RCR AL,1
JZ BRCH2
RCL AL,1
INC AL
JZ BRCH3
:
上述程序运行后,试回答:
(1)当(AL)=?时,程序转向BRCH1
(2)当(AL)=?时,程序转向BRCH2
(3)当(AL)=?时,程序转向BRCH3
①(AL)=0,②(AL)=1,③(AL)=-1
问答题
STRING
DB‘ABCDEFGHIJ’
MOVAH,01从键盘输入字符1~9
INT21H
ANDAL,0FH
DECAL
XORAH,AH
MOVBX,OFFSETSTRING
ADDBX,AX
MOVBL,[BX]
MOVAH,02H
;显示输出
INT21H
:
试回答:
显示器显示字符‘D’。
问答题
STRING
DB‘ABCDEFGHIJ’
MOVAH,01从键盘输入字符1~9
INT21H
ANDAL,0FH
DECAL
XORAH,AH
MOVBX,OFFSETSTRING
ADDBX,AX
MOVBL,[BX]
MOVAH,02H
;显示输出
INT21H
:
试回答:
问答题
程序段如下:
BLK1 DB 46,84,34,-5,20,122,73
:
MOV CX,7
LEA S1,BLK1
NEXT:MOV AL,[SI]
INC SI
TEST AL,81H
LOOPZ NEXT
MOV BL,[SI]
:
请回答程序段运行后:
(AL)=?
(BL)=?
(AL)=-5或0FBH
(BL)=14H或20