diff options
Diffstat (limited to 'sysdeps/powerpc/fraiseexcpt.c')
-rw-r--r-- | sysdeps/powerpc/fraiseexcpt.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fraiseexcpt.c b/sysdeps/powerpc/fraiseexcpt.c new file mode 100644 index 0000000000..aa8f1fcdc6 --- /dev/null +++ b/sysdeps/powerpc/fraiseexcpt.c @@ -0,0 +1,44 @@ +/* Raise given exceptions. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 +feraiseexcept (int excepts) +{ + fenv_union_t u; + + /* Raise exceptions represented by EXCEPTS. It is the responsibility of + the OS to ensure that if multiple exceptions occur they are fed back + to this process in the proper way; this can happen in hardware, + anyway (in particular, inexact with overflow or underflow). */ + + /* Get the current state. */ + u.fenv = fegetenv_register (); + + /* Add the exceptions */ + u.l[1] = (u.l[1] + | excepts & __FPSCR_STICKY_BITS + /* Turn FE_INVALID into FE_INVALID_SOFTWARE. */ + | excepts << (31 - 21) - (31 - 24) & __FE_INVALID_SOFTWARE); + + /* Store the new status word (along with the rest of the environment), + triggering any appropriate exceptions. */ + fesetenv_register (u.fenv); +} |