l4-64-1.asm

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DATA  SEGMENT
TABLE  DB 0H,1H,4H,9H,16H,25H,36H,49H,64H,81H
BUFF1  DB 'Please input one number (0-9): ', 0DH,0AH, '$'
DATA  ENDS
CODE  SEGMENT 
ASSUME CS:CODE,DS:DATA   
START:MOV AX, DATA
MOV DS,AX
MOV  DX, OFFSET BUFF1
MOV  AH,9
INT 21H
MOV AH,1
INT 21H                        
AND   AL,0FH
MOV  BX, OFFSET  TABLE      
MOV  AH,0
ADD   BX, AX
MOV   DL,0DH
MOV   AH,2
INT   21H
MOV   DL,0AH
MOV   AH,2
INT   21H
MOV   AL,[BX]
MOV   CH,AL
MOV   CL,4
AND   AL,0F0H
SHR   AL,CL
ADD   AL,30H
MOV   DL,AL
MOV   AH,2
INT   21H
MOV   AL,CH
AND   AL,0FH
ADD   AL,30H
MOV   DL,AL
MOV   AH,2
INT 21H
MOV AH,4CH
INT 21H    
CODE ENDS
END   START