sysdeps/m68k/fpu/fegetenv.c

   1 /* Store current floating-point environment.
   2    Copyright (C) 1997-2024 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.h>
  20
  21 int
  22 __fegetenv (fenv_t *envp)
  23 {
  24 #ifdef __mcoldfire__
  25   __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (envp->__control_register));
  26   __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (envp->__status_register));
  27   __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (envp->__instruction_address));
  28 #else
  29   __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp));
  30 #endif
  31
  32   /* Success.  */
  33   return 0;
  34 }
  35
  36 #include <shlib-compat.h>
  37 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
  38 strong_alias (__fegetenv, __old_fegetenv)
  39 compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1);
  40 #endif
  41
  42 libm_hidden_def (__fegetenv)
  43 libm_hidden_ver (__fegetenv, fegetenv)
  44 versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);