diff options
Diffstat (limited to 'REORG.TODO/sysdeps/arm/fsetexcptflg.c')
-rw-r--r-- | REORG.TODO/sysdeps/arm/fsetexcptflg.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/arm/fsetexcptflg.c b/REORG.TODO/sysdeps/arm/fsetexcptflg.c new file mode 100644 index 0000000000..4871a9bd5c --- /dev/null +++ b/REORG.TODO/sysdeps/arm/fsetexcptflg.c @@ -0,0 +1,45 @@ +/* Set floating-point environment exception handling. + Copyright (C) 1997-2017 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> +#include <arm-features.h> + + +int +fesetexceptflag (const fexcept_t *flagp, int excepts) +{ + fpu_control_t fpscr, new_fpscr; + + /* Fail if a VFP unit isn't present unless nothing needs to be done. */ + if (!ARM_HAVE_VFP) + return (excepts != 0); + + _FPU_GETCW (fpscr); + excepts &= FE_ALL_EXCEPT; + + /* Set the desired exception mask. */ + new_fpscr = fpscr & ~excepts; + new_fpscr |= *flagp & excepts; + + /* Write new exception flags if changed. */ + if (new_fpscr != fpscr) + _FPU_SETCW (new_fpscr); + + return 0; +} |