diff options
Diffstat (limited to 'ports/sysdeps/aarch64/fpu/feholdexcpt.c')
-rw-r--r-- | ports/sysdeps/aarch64/fpu/feholdexcpt.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/ports/sysdeps/aarch64/fpu/feholdexcpt.c b/ports/sysdeps/aarch64/fpu/feholdexcpt.c new file mode 100644 index 0000000000..8c045271dd --- /dev/null +++ b/ports/sysdeps/aarch64/fpu/feholdexcpt.c @@ -0,0 +1,47 @@ +/* Copyright (C) 1997-2012 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 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> +#include <fpu_control.h> + +int +feholdexcept (fenv_t *envp) +{ + fpu_fpsr_t fpsr; + fpu_control_t fpcr; + + _FPU_GETCW (fpcr); + envp->__fpcr = fpcr; + + _FPU_GETFPSR (fpsr); + envp->__fpsr = fpsr; + + /* Now set all exceptions to non-stop. */ + fpcr &= ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT); + + /* And clear all exception flags. */ + fpsr &= ~FE_ALL_EXCEPT; + + _FPU_SETFPSR (fpsr); + + _FPU_SETCW (fpcr); + + return 0; +} + +libm_hidden_def (feholdexcept) |