MOV AL,0B6H 
  OUT 43H,AL 
  MOV AX,1FB4H 
  OUT 42H,AL 
  MOV AL,AH
  OUT 42H,AL 
  IN AL,61H 
  MOV AH,AL 
  OR AL,00000011B
  OUT 61H,AL 
  CALL DELAY 
  MOV AL,AH 
  OUT 61H,AL 
  CALL DELAY_OFF 
  MOV AX,152FH 
  OUT 42H,AL 
  MOV AL,AH
  OUT 42H,AL 
  IN AL,61H 
  MOV AH,AL 
  OR AL,00000011B
  OUT 61H,AL 
  CALL DELAY 
  CALL DELAY 
  MOV AL,AH 
  OUT 61H,AL 
  CALL DELAY_OFF 
  MOV AX,0A97H 
  OUT 42H,AL 
  MOV AL,AH
  OUT 42H,AL 
  IN AL,61H 
  MOV AH,AL 
  OR AL,00000011B
  OUT 61H,AL 
  CALL DELAY 
  MOV AL,AH 
  OUT 61H,AL 
  CALL DELAY_OFF