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6515 serge 1
/* Software floating-point emulation.
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   Definitions for IEEE Single Precision.
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   Copyright (C) 1997-2014 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Richard Henderson (rth@cygnus.com),
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		  Jakub Jelinek (jj@ultra.linux.cz),
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		  David S. Miller (davem@redhat.com) and
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		  Peter Maydell (pmaydell@chiark.greenend.org.uk).
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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15
   In addition to the permissions in the GNU Lesser General Public
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   License, the Free Software Foundation gives you unlimited
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   permission to link the compiled version of this file into
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   combinations with other programs, and to distribute those
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   combinations without any restriction coming from the use of this
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   file.  (The Lesser General Public License restrictions do apply in
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   other respects; for example, they cover modification of the file,
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   and distribution when not linked into a combine executable.)
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   .  */
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#if _FP_W_TYPE_SIZE < 32
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# error "Here's a nickel kid.  Go buy yourself a real computer."
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#endif
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#define _FP_FRACTBITS_S		_FP_W_TYPE_SIZE
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#if _FP_W_TYPE_SIZE < 64
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# define _FP_FRACTBITS_DW_S	(2 * _FP_W_TYPE_SIZE)
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#else
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# define _FP_FRACTBITS_DW_S	_FP_W_TYPE_SIZE
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#endif
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#define _FP_FRACBITS_S		24
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#define _FP_FRACXBITS_S		(_FP_FRACTBITS_S - _FP_FRACBITS_S)
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#define _FP_WFRACBITS_S		(_FP_WORKBITS + _FP_FRACBITS_S)
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#define _FP_WFRACXBITS_S	(_FP_FRACTBITS_S - _FP_WFRACBITS_S)
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#define _FP_EXPBITS_S		8
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#define _FP_EXPBIAS_S		127
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#define _FP_EXPMAX_S		255
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#define _FP_QNANBIT_S		((_FP_W_TYPE) 1 << (_FP_FRACBITS_S-2))
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#define _FP_QNANBIT_SH_S	((_FP_W_TYPE) 1 << (_FP_FRACBITS_S-2+_FP_WORKBITS))
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#define _FP_IMPLBIT_S		((_FP_W_TYPE) 1 << (_FP_FRACBITS_S-1))
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#define _FP_IMPLBIT_SH_S	((_FP_W_TYPE) 1 << (_FP_FRACBITS_S-1+_FP_WORKBITS))
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#define _FP_OVERFLOW_S		((_FP_W_TYPE) 1 << (_FP_WFRACBITS_S))
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#define _FP_WFRACBITS_DW_S	(2 * _FP_WFRACBITS_S)
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#define _FP_WFRACXBITS_DW_S	(_FP_FRACTBITS_DW_S - _FP_WFRACBITS_DW_S)
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#define _FP_HIGHBIT_DW_S	\
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  ((_FP_W_TYPE) 1 << (_FP_WFRACBITS_DW_S - 1) % _FP_W_TYPE_SIZE)
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/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be
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   chosen by the target machine.  */
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typedef float SFtype __attribute__ ((mode (SF)));
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union _FP_UNION_S
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{
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  SFtype flt;
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  struct _FP_STRUCT_LAYOUT
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  {
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#if __BYTE_ORDER == __BIG_ENDIAN
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    unsigned sign : 1;
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    unsigned exp  : _FP_EXPBITS_S;
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    unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
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#else
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    unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0);
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    unsigned exp  : _FP_EXPBITS_S;
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    unsigned sign : 1;
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#endif
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  } bits __attribute__ ((packed));
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};
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#define FP_DECL_S(X)		_FP_DECL (1, X)
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#define FP_UNPACK_RAW_S(X, val)	_FP_UNPACK_RAW_1 (S, X, (val))
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#define FP_UNPACK_RAW_SP(X, val)	_FP_UNPACK_RAW_1_P (S, X, (val))
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#define FP_PACK_RAW_S(val, X)	_FP_PACK_RAW_1 (S, (val), X)
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#define FP_PACK_RAW_SP(val, X)			\
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  do						\
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    {						\
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      if (!FP_INHIBIT_RESULTS)			\
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	_FP_PACK_RAW_1_P (S, (val), X);		\
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    }						\
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  while (0)
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#define FP_UNPACK_S(X, val)			\
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  do						\
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    {						\
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      _FP_UNPACK_RAW_1 (S, X, (val));		\
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      _FP_UNPACK_CANONICAL (S, 1, X);		\
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    }						\
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  while (0)
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#define FP_UNPACK_SP(X, val)			\
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  do						\
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    {						\
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      _FP_UNPACK_RAW_1_P (S, X, (val));		\
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      _FP_UNPACK_CANONICAL (S, 1, X);		\
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    }						\
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  while (0)
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#define FP_UNPACK_SEMIRAW_S(X, val)		\
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  do						\
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    {						\
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      _FP_UNPACK_RAW_1 (S, X, (val));		\
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      _FP_UNPACK_SEMIRAW (S, 1, X);		\
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    }						\
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  while (0)
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#define FP_UNPACK_SEMIRAW_SP(X, val)		\
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  do						\
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    {						\
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      _FP_UNPACK_RAW_1_P (S, X, (val));		\
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      _FP_UNPACK_SEMIRAW (S, 1, X);		\
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    }						\
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  while (0)
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#define FP_PACK_S(val, X)			\
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  do						\
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    {						\
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      _FP_PACK_CANONICAL (S, 1, X);		\
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      _FP_PACK_RAW_1 (S, (val), X);		\
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    }						\
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  while (0)
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#define FP_PACK_SP(val, X)			\
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  do						\
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    {						\
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      _FP_PACK_CANONICAL (S, 1, X);		\
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      if (!FP_INHIBIT_RESULTS)			\
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	_FP_PACK_RAW_1_P (S, (val), X);		\
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    }						\
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  while (0)
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#define FP_PACK_SEMIRAW_S(val, X)		\
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  do						\
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    {						\
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      _FP_PACK_SEMIRAW (S, 1, X);		\
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      _FP_PACK_RAW_1 (S, (val), X);		\
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    }						\
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  while (0)
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#define FP_PACK_SEMIRAW_SP(val, X)		\
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  do						\
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    {						\
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      _FP_PACK_SEMIRAW (S, 1, X);		\
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      if (!FP_INHIBIT_RESULTS)			\
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	_FP_PACK_RAW_1_P (S, (val), X);		\
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    }						\
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  while (0)
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#define FP_ISSIGNAN_S(X)		_FP_ISSIGNAN (S, 1, X)
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#define FP_NEG_S(R, X)			_FP_NEG (S, 1, R, X)
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#define FP_ADD_S(R, X, Y)		_FP_ADD (S, 1, R, X, Y)
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#define FP_SUB_S(R, X, Y)		_FP_SUB (S, 1, R, X, Y)
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#define FP_MUL_S(R, X, Y)		_FP_MUL (S, 1, R, X, Y)
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#define FP_DIV_S(R, X, Y)		_FP_DIV (S, 1, R, X, Y)
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#define FP_SQRT_S(R, X)			_FP_SQRT (S, 1, R, X)
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#define _FP_SQRT_MEAT_S(R, S, T, X, Q)	_FP_SQRT_MEAT_1 (R, S, T, X, (Q))
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#if _FP_W_TYPE_SIZE < 64
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# define FP_FMA_S(R, X, Y, Z)	_FP_FMA (S, 1, 2, R, X, Y, Z)
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#else
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# define FP_FMA_S(R, X, Y, Z)	_FP_FMA (S, 1, 1, R, X, Y, Z)
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#endif
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#define FP_CMP_S(r, X, Y, un, ex)	_FP_CMP (S, 1, (r), X, Y, (un), (ex))
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#define FP_CMP_EQ_S(r, X, Y, ex)	_FP_CMP_EQ (S, 1, (r), X, Y, (ex))
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#define FP_CMP_UNORD_S(r, X, Y, ex)	_FP_CMP_UNORD (S, 1, (r), X, Y, (ex))
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#define FP_TO_INT_S(r, X, rsz, rsg)	_FP_TO_INT (S, 1, (r), X, (rsz), (rsg))
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#define FP_FROM_INT_S(X, r, rs, rt)	_FP_FROM_INT (S, 1, X, (r), (rs), rt)
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#define _FP_FRAC_HIGH_S(X)	_FP_FRAC_HIGH_1 (X)
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#define _FP_FRAC_HIGH_RAW_S(X)	_FP_FRAC_HIGH_1 (X)
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188
#if _FP_W_TYPE_SIZE < 64
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# define _FP_FRAC_HIGH_DW_S(X)	_FP_FRAC_HIGH_2 (X)
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#else
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# define _FP_FRAC_HIGH_DW_S(X)	_FP_FRAC_HIGH_1 (X)
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#endif