libm/sh/feholdexcpt.c

   1 /*
   2  *
   3  * Copyright (c) 2007  STMicroelectronics Ltd
   4  * Filippo Arcidiacono (filippo.arcidiacono@st.com)
   5  *
   6  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   7  *
   8  * Taken from glibc 2.6
   9  *
  10  */
  11
  12 #include <fenv.h>
  13 #include <fpu_control.h>
  14
  15 int
  16 feholdexcept (fenv_t *envp)
  17 {
  18   unsigned long int temp;
  19
  20   /* Store the environment.  */
  21   _FPU_GETCW (temp);
  22   envp->__fpscr = temp;
  23
  24   /* Now set all exceptions to non-stop.  */
  25   temp &= ~FE_ALL_EXCEPT;
  26   _FPU_SETCW (temp);
  27
  28   return 1;
  29 }