diff options
Diffstat (limited to 'libc/sysdeps/linux/sparc/soft-fp/q_qtod.c')
-rw-r--r-- | libc/sysdeps/linux/sparc/soft-fp/q_qtod.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sparc/soft-fp/q_qtod.c b/libc/sysdeps/linux/sparc/soft-fp/q_qtod.c new file mode 100644 index 000000000..82b01ec8a --- /dev/null +++ b/libc/sysdeps/linux/sparc/soft-fp/q_qtod.c @@ -0,0 +1,45 @@ +/* Software floating-point emulation. + Return (double)a + Copyright (C) 1997,1999,2006 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "soft-fp.h" +#include "double.h" +#include "quad.h" + +double _Q_qtod(const long double a) +{ + FP_DECL_EX; + FP_DECL_Q(A); + FP_DECL_D(R); + double r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_SEMIRAW_Q(A, a); +#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q + FP_TRUNC(D,Q,2,4,R,A); +#else + FP_TRUNC(D,Q,1,2,R,A); +#endif + FP_PACK_SEMIRAW_D(r, R); + FP_HANDLE_EXCEPTIONS; + + return r; +} |