diff options
| -rw-r--r-- | sysdeps/sparc/sparc32/soft-fp/q_neg.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc32/soft-fp/q_neg.c b/sysdeps/sparc/sparc32/soft-fp/q_neg.c new file mode 100644 index 0000000000..a1a5f2de92 --- /dev/null +++ b/sysdeps/sparc/sparc32/soft-fp/q_neg.c @@ -0,0 +1,47 @@ +/* Software floating-point emulation. + Return !a + Copyright (C) 1997,1999 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +long double _Q_neg(const long double a) +{ + FP_DECL_EX; + long double c = a; + +#if (__BYTE_ORDER == __BIG_ENDIAN) + ((UWtype *)&c)[0] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 64) + ((UWtype *)&c)[1] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#elif (__BYTE_ORDER == __LITTLE_ENDIAN) && (W_TYPE_SIZE == 32) + ((UWtype *)&c)[3] ^= (((UWtype)1) << (W_TYPE_SIZE - 1)); +#else + FP_DECL_Q(A); FP_DECL_Q(C); + + FP_UNPACK_Q(A, a); + FP_NEG_Q(C, A); + FP_PACK_Q(c, C); +#endif + FP_CLEAR_EXCEPTIONS; + FP_HANDLE_EXCEPTIONS; + return c; +} |