diff options
Diffstat (limited to 'ports/sysdeps/ia64/fpu/fedisblxcpt.c')
-rw-r--r-- | ports/sysdeps/ia64/fpu/fedisblxcpt.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/ports/sysdeps/ia64/fpu/fedisblxcpt.c b/ports/sysdeps/ia64/fpu/fedisblxcpt.c new file mode 100644 index 0000000000..cacb4b58d8 --- /dev/null +++ b/ports/sysdeps/ia64/fpu/fedisblxcpt.c @@ -0,0 +1,36 @@ +/* Disable floating-point exceptions. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000. + + 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 <fenv.h> + +int +fedisableexcept (int excepts) +{ + fenv_t old_fpsr; + fenv_t new_fpsr; + + /* Get the current fpsr. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (old_fpsr)); + + new_fpsr = old_fpsr | ((fenv_t) excepts & FE_ALL_EXCEPT); + + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (new_fpsr) : "memory"); + + return (old_fpsr ^ FE_ALL_EXCEPT) & FE_ALL_EXCEPT; +} |