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.MODEL SMALL
.STACK 100H
.DATA
MSG1 DB 'ENTER HEX:$' 
MSG2 DB 'DECIMAL:$'
MSG3 DB 'WANT AGAIN(Y/y):$'
.CODE
MAIN PROC
    
    MOV AX,@DATA
    MOV DS,AX
    
    
    LEA DX,MSG1
    MOV AH,9
    INT 21H 
    
    MOV AH,1
    INT 21H
    
    

    
    
    
        
    
    MOV CL,9
    ADD CL,48
    CMP AL,CL
    JG L1
    
    MOV DL,AL
    MOV AH,2
    INT 21H
    JMP EXIT
    
    L1:
    MOV DL,49
    MOV AH,2
    INT 21H
    
    CMP AL,'A'
    JE L2
    
    L2:
    MOV DL,48
    INT 21H
    JMP EXIT
    
    CMP AL,'B'
    JE L3
    
    L3:
    MOV DL,49
    INT 21H
    JMP EXIT
    
    
    CMP AL,'C'
    JE L4
    
    L4:
    MOV DL,50
    INT 21H
    JMP EXIT
    
    
    CMP AL,'D'
    JE L5
    
    L5:
    MOV DL,51
    INT 21H
    JMP EXIT
    
    
    CMP AL,'E'
    JE L6
    
    
    L6:
    MOV DL,52
    INT 21H
    JMP EXIT
    
    
    CMP AL,'F'
    JE L7
    
    L7:
    MOV DL,53
    INT 21H
    JMP EXIT
    
    
    
    EXIT:
    
    MOV AH,4CH
    INT 21H
    MAIN ENDP
END MAIN