DATA	SEGMENT
MES	DB 'THE FIRS$T PROGRAM!','$'
A       dw	123
B       dw 	456
sum  dw	?
DATA	ENDS

CODE	SEGMENT
	ASSUME CS:CODE,DS:DATA	
MAIN PROC FAR
	MOV	AX,DATA
	MOV	DS,AX
  ;MOV DS,DATA
  
  MOV AL,0ABH
	MOV	AH,09H
	LEA	DX,MES
	INT	21H

	mov 	ax£¬a 
  add 	ax£¬b 
  mov 	sum£¬ax
	
	
	MOV	AX,4c00H
	INT	21H
MAIN	ENDP
CODE	ENDS
	END	MAIN
