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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [soft-fp/] [single.h] - Blame information for rev 282

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1 282 jeremybenn
/* Software floating-point emulation.
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   Definitions for IEEE Single Precision.
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   Copyright (C) 1997,1998,1999,2006 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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   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, write to the Free
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   Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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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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#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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/* 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 {
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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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    if (!FP_INHIBIT_RESULTS)            \
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      _FP_PACK_RAW_1_P(S,val,X);        \
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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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    _FP_UNPACK_RAW_1(S,X,val);          \
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    _FP_UNPACK_CANONICAL(S,1,X);        \
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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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    _FP_UNPACK_RAW_1_P(S,X,val);        \
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    _FP_UNPACK_CANONICAL(S,1,X);        \
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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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    _FP_UNPACK_RAW_1(S,X,val);          \
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    _FP_UNPACK_SEMIRAW(S,1,X);          \
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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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    _FP_UNPACK_RAW_1_P(S,X,val);        \
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    _FP_UNPACK_SEMIRAW(S,1,X);          \
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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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    _FP_PACK_CANONICAL(S,1,X);          \
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    _FP_PACK_RAW_1(S,val,X);            \
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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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    _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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  } while (0)
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#define FP_PACK_SEMIRAW_S(val,X)        \
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  do {                                  \
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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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  } while (0)
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#define FP_PACK_SEMIRAW_SP(val,X)       \
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  do {                                  \
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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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  } 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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#define FP_CMP_S(r,X,Y,un)      _FP_CMP(S,1,r,X,Y,un)
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#define FP_CMP_EQ_S(r,X,Y)      _FP_CMP_EQ(S,1,r,X,Y)
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#define FP_CMP_UNORD_S(r,X,Y)   _FP_CMP_UNORD(S,1,r,X,Y)
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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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