diff options
Diffstat (limited to 'libm/m68k/fclrexcpt.c')
| -rw-r--r-- | libm/m68k/fclrexcpt.c | 39 | 
1 files changed, 39 insertions, 0 deletions
| diff --git a/libm/m68k/fclrexcpt.c b/libm/m68k/fclrexcpt.c new file mode 100644 index 000000000..904ba5a19 --- /dev/null +++ b/libm/m68k/fclrexcpt.c @@ -0,0 +1,39 @@ +/* Clear given exceptions in current floating-point environment. +   Copyright (C) 1997-2025 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> + +int +feclearexcept (int excepts) +{ +  fexcept_t fpsr; + +  /* Mask out unsupported bits/exceptions.  */ +  excepts &= FE_ALL_EXCEPT; + +  /* Fetch the fpu status register.  */ +  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); + +  /* Clear the relevant bits.  */ +  fpsr &= ~excepts; + +  /* Put the new data in effect.  */ +  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); + +  /* Success.  */ +  return 0; +} | 
