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SHOW MACRO X
MOV DX,OFFSET X
MOV AH,09H
INT 21H
ENDM
DATA SEGMENT
INFOR1 DB 0AH,0DH,"Are you really want to exit?$"
INFOR2 DB 0AH,0DH,"Thank you for your using!$"
INFOR3 DB 0AH,0DH,"Let's continue!$"
INFOR4 DB 0AH,0DH,"You press an error key!$"
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DX,AX
SHOW INFOR1
MOV AH,01H
INT 21H
CMP AL,'N'
JE NO
CMP AL,'Y'
JE YES
CMP AL,'n'
JE NO
CMP AL,'y'
JE YES
SHOW INFOR4
JMP PEND
YES:
SHOW INFOR2
JMP PEND
NO:
SHOW INFOR3
JMP PEND
PEND:
MOV AH,4CH
INT 21H
CODE ENDS
END START