1  /* Set given exception flags.  PowerPC version.
       2     Copyright (C) 2016-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <fenv_libc.h>
      20  
      21  int
      22  fesetexcept (int excepts)
      23  {
      24    fenv_union_t u, n;
      25  
      26    u.fenv = fegetenv_register ();
      27    n.l = (u.l
      28  	 | (excepts & FPSCR_STICKY_BITS)
      29  	 /* Turn FE_INVALID into FE_INVALID_SOFTWARE.  */
      30  	 | (excepts >> ((31 - FPSCR_VX) - (31 - FPSCR_VXSOFT))
      31  	    & FE_INVALID_SOFTWARE));
      32    if (n.l != u.l)
      33      {
      34        fesetenv_register (n.fenv);
      35  
      36        /* Deal with FE_INVALID_SOFTWARE not being implemented on some chips.  */
      37        if (excepts & FE_INVALID)
      38  	feraiseexcept (FE_INVALID);
      39      }
      40  
      41    return 0;
      42  }