1/* Local definitions for use with the decNumber C Library.
2 Copyright (C) 2007-2017 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