fegetround.c 1.2 KB

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  1. /*
  2. * Copyright (C) 2016-2017 Andes Technology, Inc.
  3. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  4. */
  5. /* Return current rounding direction.
  6. Copyright (C) 2004-2013 Free Software Foundation, Inc.
  7. The GNU C Library is free software; you can redistribute it and/or
  8. modify it under the terms of the GNU Lesser General Public
  9. License as published by the Free Software Foundation; either
  10. version 2.1 of the License, or (at your option) any later version.
  11. The GNU C Library is distributed in the hope that it will be useful,
  12. but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. Lesser General Public License for more details.
  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. <http://www.gnu.org/licenses/>. */
  18. #include <fenv.h>
  19. #include <fpu_control.h>
  20. int
  21. fegetround (void)
  22. {
  23. #ifdef __NDS32_ABI_2FP_PLUS__
  24. unsigned int temp;
  25. /* Get the current environment. */
  26. _FPU_GETCW (temp);
  27. return temp & 0x3;
  28. #else
  29. /* The current soft-float implementation only handles TONEAREST. */
  30. return FE_TONEAREST;
  31. #endif
  32. }