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SYMUPK

       INTEGER FUNCTION  SYMUPK (XYGRID,BUFFER)
 C$    (Character Grid Unpacking)
 C$    SYMUPK unpacks a complete character definition from BUFFER,
 C$    returning as a  function value  the number  of data  values
 C$    entered  into  XYGRID.    The  storage  bias   of  +64   is
 C$    automatically removed.
 C$
 C$    This is the portable version, which unpacks one (x,y)  pair
 C$    per INTEGER word, using the low-order 14 bits.
 C$    (15-APR-82)