diff options
Diffstat (limited to 'sysdeps/sparc/sparc32/q_neg.c')
-rw-r--r-- | sysdeps/sparc/sparc32/q_neg.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc32/q_neg.c b/sysdeps/sparc/sparc32/q_neg.c new file mode 100644 index 0000000000..1e0e0b7678 --- /dev/null +++ b/sysdeps/sparc/sparc32/q_neg.c @@ -0,0 +1,48 @@ +/* Software floating-point emulation. + Return !a + Copyright (C) 1997-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_neg(const long double a) +{ + union { + long double ldbl; + UWtype words[4]; + } c; + + c.ldbl = a; + +#if (__BYTE_ORDER == __BIG_ENDIAN) + c.words[0] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 64) + c.words[1] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 32) + c.words[3] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#else + FP_DECL_Q(A); FP_DECL_Q(C); + + FP_UNPACK_RAW_Q(A, a); + FP_NEG_Q(C, A); + FP_PACK_RAW_Q(c.ldbl, C); +#endif + return c.ldbl; +} |