diff options
Diffstat (limited to 'libm/arc/fesetenv.c')
-rw-r--r-- | libm/arc/fesetenv.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/libm/arc/fesetenv.c b/libm/arc/fesetenv.c new file mode 100644 index 000000000..59ec3b722 --- /dev/null +++ b/libm/arc/fesetenv.c @@ -0,0 +1,44 @@ +/* Install given floating-point environment (does not raise exceptions). + Copyright (C) 2020-2025 Free Software Foundation, Inc. + + 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 + <https://www.gnu.org/licenses/>. */ + +#include <fenv.h> +#include "fpu_control.h" + +int +fesetenv (const fenv_t *envp) +{ + unsigned int fpcr; + unsigned int fpsr; + + if (envp == FE_DFL_ENV) + { + fpcr = _FPU_DEFAULT; + fpsr = _FPU_FPSR_DEFAULT; + } + else + { + /* No need to mask out reserved bits as they are IoW. */ + fpcr = envp->__fpcr; + fpsr = envp->__fpsr; + } + + _FPU_SETCW (fpcr); + _FPU_SETS (fpsr); + + /* Success. */ + return 0; +} |