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/* FPU control word definitions. Stub version.
Copyright (C) 2000 Free Software Foundation, Inc.
Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com) and
Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _FPU_CONTROL_H
# define _FPU_CONTROL_H
# include <features.h>
/* These bits are reserved are not changed. */
# define _FPU_RESERVED 0x070700FC
/* The fdlibm code requires no interrupts for exceptions. Don't
change the rounding mode, it would break long double I/O! */
#define _FPU_DEFAULT 0x00000000 /* Default value. */
/* Type of the control word. */
typedef unsigned int fpu_control_t;
/* Macros for accessing the hardware control word. */
#define _FPU_GETCW(cw) __asm__ volatile ("efpc %0,0" : "=d" (cw))
#define _FPU_SETCW(cw) __asm__ volatile ("sfpc %0,0" : : "d" (cw))
/* Default control word set at startup. */
extern fpu_control_t __fpu_control;
#endif /* _FPU_CONTROL_H */
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