dataseg SEGMENT
a dw 0010H
b dw 0005H
c dw 2 DUP(0)
dataseg ENDS
code SEGMENT
     ASSUME DS: dataseg, CS: code
main PROC FAR
     MOV AX, dataseg
     MOV DS, AX
     MOV BX, OFFSET a
     MOV AX, [BX]
     ADC AX, WORD PTR[BX+2]
     MOV [BX+4], AX
     MOV [BX+6], DX
     MOV AX, 4C00H
     INT 21H
code ENDS
main ENDP
END