glibc/soft-fp/adddf3.c History
<<
>>
Prefs
   1/* Software floating-point emulation.
   2   Return a + b
   3   Copyright (C) 1997,1999, 2006 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, write to the Free
  29   Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  30   MA 02110-1301, USA.  */
  31
  32#include "soft-fp.h"
  33#include "double.h"
  34
  35DFtype __adddf3(DFtype a, DFtype b)
  36{
  37  FP_DECL_EX;
  38  FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(R);
  39  DFtype r;
  40
  41  FP_INIT_ROUNDMODE;
  42  FP_UNPACK_SEMIRAW_D(A, a);
  43  FP_UNPACK_SEMIRAW_D(B, b);
  44  FP_ADD_D(R, A, B);
  45  FP_PACK_SEMIRAW_D(r, R);
  46  FP_HANDLE_EXCEPTIONS;
  47
  48  return r;
  49}
  50