STACK SEGMENT STACK 'STACK'
DW 100H DUP(?)
TOP LABEL WORD
STACK ENDS

DATA SEGMENT
ADD1 DB 32H,85H,67H,12H
ADD2 DB 43H,65H,73H,21H
SUM DB 4H DUP(?)
DATA ENDS

CODE SEGMENT
ASSUME CS:CODE,DS:DATA,ES:DATA,SS:STACK
START:
MOV AX,DATA
MOV DS,AX
MOV ES,AX
MOV AX,STACK
MOV SS,AX
LEA SI,ADD1
LEA BX,ADD2
LEA DI,SUM
MOV CX,4
CLC
L1:
MOV AL,[SI]
ADC AL,[BX]
DAA
MOV [DI],AL
INC SI
INC DI
INC BX
LOOP L1
CODE ENDS
END START