1 /* Software floating-point emulation.
2 Return -a
3 Copyright (C) 1997-2018 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
__negdf2(DFtype a)35 __negdf2 (DFtype a)
36 {
37 FP_DECL_D (A);
38 FP_DECL_D (R);
39 DFtype r;
40
41 FP_UNPACK_RAW_D (A, a);
42 FP_NEG_D (R, A);
43 FP_PACK_RAW_D (r, R);
44
45 return r;
46 }
47