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TITLE PROG2-1 (EXE) PURPOSE: ADDS 5 BYTES OF DATA
  .MODEL SMALL
  .STACK 64
  .DATA
  DATA_IN DB 25H,12H,15H,1FH,2BH
  SUM DB ?
  .CODE
  MAIN PROC FAR
  MOV AX,@DATA
  MOV DS,AX
  MOV CX,05 
  MOV BX,OFFSET DATA_IN 
  MOV AL,0 
AGAIN: ADD AL,[BX] 
  INC BX 
  DEC CX 
  JNZ AGAIN 
  MOV SUM,AL 
  MOV AH,4CH 
  INT 21H 
  MAIN ENDP
  END MAIN