[Evgeniy]

  *((_BYTE *)v4 + 16) = (unsigned int)v12 >> 7;  [0]
  *((_BYTE *)v4 + 19) = (unsigned int)v5 >> 7;   [3]
  *((_BYTE *)v4 + 22) = (unsigned int)v5 >> 7;   [6]
  *((_BYTE *)v4 + 23) = (unsigned int)v5 >> 7;   [7]
  *((_BYTE *)v4 + 18) = (unsigned int)v5 >> 7;   [2]
  *((_BYTE *)v4 + 21) = (unsigned int)v5 >> 7;   [5]
  *((_BYTE *)v4 + 17) =  (unsigned int)v5 >> 7;  [1]
  *((_BYTE *)v4 + 20) = (unsigned int)v5 >> 7;   [4]

как то так наверное