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  1. /* Software floating-point emulation.
  2.    Return a + b
  3.    Copyright (C) 1997-2014 Free Software Foundation, Inc.
  4.    This file is part of the GNU C Library.
  5.    Contributed by Richard Henderson (rth@cygnus.com) and
  6.                   Jakub Jelinek (jj@ultra.linux.cz).
  7.  
  8.    The GNU C Library is free software; you can redistribute it and/or
  9.    modify it under the terms of the GNU Lesser General Public
  10.    License as published by the Free Software Foundation; either
  11.    version 2.1 of the License, or (at your option) any later version.
  12.  
  13.    In addition to the permissions in the GNU Lesser General Public
  14.    License, the Free Software Foundation gives you unlimited
  15.    permission to link the compiled version of this file into
  16.    combinations with other programs, and to distribute those
  17.    combinations without any restriction coming from the use of this
  18.    file.  (The Lesser General Public License restrictions do apply in
  19.    other respects; for example, they cover modification of the file,
  20.    and distribution when not linked into a combine executable.)
  21.  
  22.    The GNU C Library is distributed in the hope that it will be useful,
  23.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  24.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  25.    Lesser General Public License for more details.
  26.  
  27.    You should have received a copy of the GNU Lesser General Public
  28.    License along with the GNU C Library; if not, see
  29.    <http://www.gnu.org/licenses/>.  */
  30.  
  31. #include "soft-fp.h"
  32. #include "double.h"
  33.  
  34. DFtype
  35. __adddf3 (DFtype a, DFtype b)
  36. {
  37.   FP_DECL_EX;
  38.   FP_DECL_D (A);
  39.   FP_DECL_D (B);
  40.   FP_DECL_D (R);
  41.   DFtype r;
  42.  
  43.   FP_INIT_ROUNDMODE;
  44.   FP_UNPACK_SEMIRAW_D (A, a);
  45.   FP_UNPACK_SEMIRAW_D (B, b);
  46.   FP_ADD_D (R, A, B);
  47.   FP_PACK_SEMIRAW_D (r, R);
  48.   FP_HANDLE_EXCEPTIONS;
  49.  
  50.   return r;
  51. }
  52.