diff options
Diffstat (limited to 'libm/m68k/fsetexcptflg.c')
| -rw-r--r-- | libm/m68k/fsetexcptflg.c | 38 | 
1 files changed, 38 insertions, 0 deletions
| diff --git a/libm/m68k/fsetexcptflg.c b/libm/m68k/fsetexcptflg.c new file mode 100644 index 000000000..18fc1811f --- /dev/null +++ b/libm/m68k/fsetexcptflg.c @@ -0,0 +1,38 @@ +/* Set floating-point environment exception handling. +   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> +#include <math.h> + +int +fesetexceptflag (const fexcept_t *flagp, int excepts) +{ +  fexcept_t fpsr; + +  /* Get the current status register.  */ +  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); + +  /* Install the new exception bits in the Accrued Exception Byte.  */ +  fpsr &= ~(excepts & FE_ALL_EXCEPT); +  fpsr |= *flagp & excepts & FE_ALL_EXCEPT; + +  /* Store the new status register.  */ +  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); + +  /* Success.  */ +  return 0; +} | 
