diff options
Diffstat (limited to 'REORG.TODO/sysdeps/ia64/fpu/feholdexcpt.c')
| -rw-r--r-- | REORG.TODO/sysdeps/ia64/fpu/feholdexcpt.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/ia64/fpu/feholdexcpt.c b/REORG.TODO/sysdeps/ia64/fpu/feholdexcpt.c new file mode 100644 index 0000000000..98075a17ed --- /dev/null +++ b/REORG.TODO/sysdeps/ia64/fpu/feholdexcpt.c @@ -0,0 +1,43 @@ +/* Store current floating-point environment and clear exceptions. + Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999 + + 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 +__feholdexcept (fenv_t *envp) +{ + fenv_t fpsr; + /* Save the current state. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + *envp = fpsr; + + /* Set the trap disable bits. */ + fpsr |= FE_ALL_EXCEPT; + + /* And clear the exception bits. */ + fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13); + + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr)); + + /* Success. */ + return 0; +} +libm_hidden_def (__feholdexcept) +weak_alias (__feholdexcept, feholdexcept) +libm_hidden_weak (feholdexcept) |