1/* Local definitions for use with the decNumber C Library.
2   Copyright (C) 2007, 2009 Free Software Foundation, Inc.
3
4   This file is part of GCC.
5
6   GCC is free software; you can redistribute it and/or modify it under
7   the terms of the GNU General Public License as published by the Free
8   Software Foundation; either version 3, or (at your option) any later
9   version.
10
11   GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12   WARRANTY; without even the implied warranty of MERCHANTABILITY or
13   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14   for more details.
15
16Under Section 7 of GPL version 3, you are granted additional
17permissions described in the GCC Runtime Library Exception, version
183.1, as published by the Free Software Foundation.
19
20You should have received a copy of the GNU General Public License and
21a copy of the GCC Runtime Library Exception along with this program;
22see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23<http://www.gnu.org/licenses/>.  */
24
25#if !defined(DECIMAL128LOCAL)
26
27/* The compiler needs sign manipulation functions for decimal128 which
28   are not part of the decNumber package.  */
29
30/* Set sign; this assumes the sign was previously zero.  */
31#define decimal128SetSign(d,b) \
32  { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] |= ((unsigned) (b) << 7); }
33
34/* Clear sign.  */
35#define decimal128ClearSign(d) \
36  { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] &= ~0x80; }
37
38/* Flip sign.  */
39#define decimal128FlipSign(d) \
40  { (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] ^= 0x80; }
41
42#endif
43