fpu_control.h 1.5 KB

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  1. /* FPU control word definitions. Stub version.
  2. Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #ifndef _FPU_CONTROL_H
  17. #define _FPU_CONTROL_H
  18. #define _FPU_RESERVED 0xffffffff /* These bits are reserved and not changed. */
  19. /* The fdlibm code requires no interrupts for exceptions. Don't
  20. change the rounding mode, it would break long double I/O! */
  21. #define _FPU_DEFAULT 0x00000000 /* Default value. */
  22. /* Type of the control word. */
  23. typedef unsigned int fpu_control_t;
  24. /* Macros for accessing the hardware control word. */
  25. #define _FPU_GETCW(cw) 0
  26. #define _FPU_SETCW(cw) do { } while (0)
  27. /* Default control word set at startup. */
  28. extern fpu_control_t __fpu_control;
  29. #endif /* _FPU_CONTROL_H */