diff options
Diffstat (limited to 'sysdeps/powerpc/feupdateenv.c')
-rw-r--r-- | sysdeps/powerpc/feupdateenv.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/powerpc/feupdateenv.c b/sysdeps/powerpc/feupdateenv.c new file mode 100644 index 0000000000..b3a3f95ac3 --- /dev/null +++ b/sysdeps/powerpc/feupdateenv.c @@ -0,0 +1,37 @@ +/* Install given floating-point environment and raise exceptions. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + 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 <fenv_libc.h> + +void +feupdateenv (const fenv_t *envp) +{ + fenv_union_t old, new; + + /* Save the currently set exceptions. */ + new.fenv = *envp; + old.fenv = fegetenv_register (); + + /* Copy the set exceptions from `old' to `new'. */ + new.l[1] = new.l[1] & 0xE00000FF | old.l[1] & 0x1FFFFF00; + + /* Atomically enable and raise (if appropriate) exceptions set in `new'. */ + fesetenv_register (new.fenv); +} |