feholdexcpt.c 1.2 KB

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  1. /* Store current floating-point environment and clear exceptions.
  2. Copyright (C) 2013 Imagination Technologies Ltd.
  3. Free Software Foundation, Inc.
  4. This file is part of the GNU C Library.
  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. The GNU C Library is distributed in the hope that it will be useful,
  10. but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. Lesser General Public License for more details.
  13. You should have received a copy of the GNU Lesser General Public
  14. License along with the GNU C Library; see the file COPYING.LIB. If
  15. not, see <http://www.gnu.org/licenses/>.  */
  16. #include <fenv.h>
  17. #include <unistd.h>
  18. #include "internal.h"
  19. int
  20. feholdexcept (fenv_t *envp)
  21. {
  22. unsigned int txdefr;
  23. unsigned int txmode;
  24. __asm__ ("MOV %0,TXDEFR" : "=r" (txdefr));
  25. __asm__ ("MOV %0,TXMODE" : "=r" (txmode));
  26. envp->txdefr = txdefr;
  27. envp->txmode = txmode;
  28. metag_set_fpu_flags(0);
  29. return 0;
  30. }