   Copyright (C)  2000    Daniel A. Atkinson
   Copyright (C)  2004    Ivano Primi  <ivano.primi@tin.it>    

     Copying and distribution of this file, with or without modification,
     are permitted in any medium without royalty provided the copyright
     notice and this notice are preserved.

******************************************************************************

     The files in this directory support an increase in the precision
     of the functions in the 'xarm' library segment. This is accomplished
     by increasing the size of the mantissa. Possible enhanced mantissa
     sizes are 11, 15, 19, 23, 27, and 31 sixteen bit words. First
     redefine XDIM in 'xpre.h' to be equal to one of these values,
     then replace the 'constant.h' header with the corresponding
     'const[nn].h' from this directory, and recompile the segment code
     with these new header files.
