How to convert BCD into binary in 8086 Microprocessor?

To convert BCD into binary.

Code:
DATA_SEG SEGMENT
BCD DB 20H ; STORAGE FOR A BCD VALUE
BIN DB ? ; STORAGE FOR BINARY VALUE
DATA_SEG ENDS

CODE_SEG SEGMENT
ASSUME CS:CODE_SEG,DS:DATA_SEG
START:
MOV AX,DATA_SEG
MOV DS,AX

MOV AH,BCD      
MOV BH,AH 
AND BH,0FH 
AND AH,0F0H 
ROR AH,04  
MOV CL,10  
MOV AL,AH 
AND AX,00FFH 
MUL CL 
ADD AL,BH 
MOV BIN,AL   
MOV AH,04CH 
INT 21H 
CODE_SEG ENDS 

END START

Output: