HEX to ASCII conversion

Write an 8085 assembly language program for HEX to ASCII conversion of a byte.

Input: (4000H) = E4H
Output: (4020H) = 34 (ASCII code for 4)
(4021H) = 45 (ASCII code for E)

Simple Approach : 
extract and check both bits one by one , if it is ALPHABET or NUMBER . 
if NUMBER ( condition : extracted bit < 0A ) : add 48
else ALPHABET : sub 0A & add 65

Code : 
LXI H,4000H
MOV A,M
ANI 0FH ; extract last 4 bits

CPI 0AH ; check byte is NUMBER or ALPHABET

JNC ALPHABET

NUMBER:ADI 48
       JMP CONTINUE

ALPHABET:SUI 0AH
         ADI 65
         JMP CONTINUE

CONTINUE: STA 4020H

MOV A,M
ANI F0H ; extract first 4 bits

RRC
RRC
RRC
RRC

CPI 0AH

JNC ALPHABET2

NUMBER2:ADI 48
        JMP CONTINUE2

ALPHABET2:SBI 0AH
          ADI 65
          JMP CONTINUE2

CONTINUE2: STA 4021H
HLT