qp_qtoui.c 1.4 KB

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  1. /* Software floating-point emulation.
  2. Return (unsigned int)(*a)
  3. Copyright (C) 1997-2017 Free Software Foundation, Inc.
  4. This file is part of the GNU C Library.
  5. Contributed by Richard Henderson (rth@cygnus.com) and
  6. Jakub Jelinek (jj@ultra.linux.cz).
  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. #define FP_ROUNDMODE FP_RND_ZERO
  19. #include "soft-fp.h"
  20. #include "quad.h"
  21. unsigned int _Qp_qtoui(const long double *a)
  22. {
  23. FP_DECL_EX;
  24. FP_DECL_Q(A);
  25. unsigned int r;
  26. FP_INIT_ROUNDMODE;
  27. FP_UNPACK_RAW_QP(A, a);
  28. FP_TO_INT_Q(r, A, 32, -1);
  29. QP_HANDLE_EXCEPTIONS(
  30. int rx;
  31. __asm (
  32. " ldd [%1], %%f52\n"
  33. " ldd [%1+8], %%f54\n"
  34. " fqtoi %%f52, %%f31\n"
  35. " st %%f31, [%0]\n"
  36. " " : : "r" (&rx), "r" (a) : QP_CLOBBER, "f31");
  37. r = rx);
  38. return r;
  39. }