43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/* Local definitions for use with the decNumber C Library.
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Copyright (C) 2007-2019 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#if !defined(DECIMAL128LOCAL)
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/* The compiler needs sign manipulation functions for decimal128 which
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are not part of the decNumber package. */
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/* Set sign; this assumes the sign was previously zero. */
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#define decimal128SetSign(d,b) \
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{ (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] |= ((unsigned) (b) << 7); }
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/* Clear sign. */
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#define decimal128ClearSign(d) \
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{ (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] &= ~0x80; }
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/* Flip sign. */
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#define decimal128FlipSign(d) \
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{ (d)->bytes[WORDS_BIGENDIAN ? 0 : 15] ^= 0x80; }
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#endif
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