_fpmath.h 1.8 KB

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  1. /*-
  2. * Copyright (c) 2003 David Schultz <[email protected]>
  3. * All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions
  7. * are met:
  8. * 1. Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in the
  12. * documentation and/or other materials provided with the distribution.
  13. *
  14. * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17. * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24. * SUCH DAMAGE.
  25. *
  26. * $FreeBSD$
  27. */
  28. union IEEEl2bits {
  29. long double e;
  30. struct {
  31. unsigned int sign :1;
  32. unsigned int exp :11;
  33. unsigned int manh :20;
  34. unsigned int manl :32;
  35. } bits;
  36. };
  37. #define mask_nbit_l(u) ((void)0)
  38. #define LDBL_IMPLICIT_NBIT
  39. #define LDBL_NBIT 0
  40. #define LDBL_MANH_SIZE 20
  41. #define LDBL_MANL_SIZE 32
  42. #define LDBL_TO_ARRAY32(u, a) do { \
  43. (a)[0] = (uint32_t)(u).bits.manl; \
  44. (a)[1] = (uint32_t)(u).bits.manh; \
  45. } while(0)