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  .MODEL SMALL
  PUBLIC B2ASC_CON
  .CODE
  B2ASC_CON PROC FAR
  PUSHF 
  PUSH BX
  PUSH DX
  MOV BX,10 
  ADD SI,4 
B2A_LOOP: SUB DX,DX 
  DIV BX 
  OR DL,30H 
  MOV [SI],DL 
  DEC SI 
  CMP AX,0 
  JA B2A_LOOP
  POP DX 
  POP BX
  POPF
  RET
  B2ASC_CON ENDP
  END