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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgcc/] [soft-fp/] [quad.h] - Blame information for rev 734

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1 734 jeremybenn
/* Software floating-point emulation.
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   Definitions for IEEE Quad Precision.
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   Copyright (C) 1997,1998,1999,2006,2007 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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#if _FP_W_TYPE_SIZE < 64
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#define _FP_FRACTBITS_Q         (4*_FP_W_TYPE_SIZE)
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#else
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#define _FP_FRACTBITS_Q         (2*_FP_W_TYPE_SIZE)
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#endif
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#define _FP_FRACBITS_Q          113
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#define _FP_FRACXBITS_Q         (_FP_FRACTBITS_Q - _FP_FRACBITS_Q)
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#define _FP_WFRACBITS_Q         (_FP_WORKBITS + _FP_FRACBITS_Q)
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#define _FP_WFRACXBITS_Q        (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q)
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#define _FP_EXPBITS_Q           15
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#define _FP_EXPBIAS_Q           16383
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#define _FP_EXPMAX_Q            32767
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#define _FP_QNANBIT_Q           \
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        ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE)
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#define _FP_QNANBIT_SH_Q                \
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        ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
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#define _FP_IMPLBIT_Q           \
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        ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE)
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#define _FP_IMPLBIT_SH_Q                \
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        ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE)
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#define _FP_OVERFLOW_Q          \
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        ((_FP_W_TYPE)1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE))
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typedef float TFtype __attribute__((mode(TF)));
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#if _FP_W_TYPE_SIZE < 64
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67
union _FP_UNION_Q
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{
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   TFtype flt;
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   struct
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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_Q;
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      unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
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      unsigned long frac2 : _FP_W_TYPE_SIZE;
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      unsigned long frac1 : _FP_W_TYPE_SIZE;
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      unsigned long frac0 : _FP_W_TYPE_SIZE;
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#else
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      unsigned long frac0 : _FP_W_TYPE_SIZE;
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      unsigned long frac1 : _FP_W_TYPE_SIZE;
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      unsigned long frac2 : _FP_W_TYPE_SIZE;
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      unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
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      unsigned exp : _FP_EXPBITS_Q;
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      unsigned sign : 1;
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#endif /* not bigendian */
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   } bits __attribute__((packed));
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};
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#define FP_DECL_Q(X)            _FP_DECL(4,X)
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#define FP_UNPACK_RAW_Q(X,val)  _FP_UNPACK_RAW_4(Q,X,val)
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#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_4_P(Q,X,val)
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#define FP_PACK_RAW_Q(val,X)    _FP_PACK_RAW_4(Q,val,X)
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#define FP_PACK_RAW_QP(val,X)           \
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  do {                                  \
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    if (!FP_INHIBIT_RESULTS)            \
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      _FP_PACK_RAW_4_P(Q,val,X);        \
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  } while (0)
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#define FP_UNPACK_Q(X,val)              \
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  do {                                  \
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    _FP_UNPACK_RAW_4(Q,X,val);          \
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    _FP_UNPACK_CANONICAL(Q,4,X);        \
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  } while (0)
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#define FP_UNPACK_QP(X,val)             \
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  do {                                  \
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    _FP_UNPACK_RAW_4_P(Q,X,val);        \
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    _FP_UNPACK_CANONICAL(Q,4,X);        \
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  } while (0)
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113
#define FP_UNPACK_SEMIRAW_Q(X,val)      \
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  do {                                  \
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    _FP_UNPACK_RAW_4(Q,X,val);          \
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    _FP_UNPACK_SEMIRAW(Q,4,X);          \
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  } while (0)
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119
#define FP_UNPACK_SEMIRAW_QP(X,val)     \
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  do {                                  \
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    _FP_UNPACK_RAW_4_P(Q,X,val);        \
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    _FP_UNPACK_SEMIRAW(Q,4,X);          \
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  } while (0)
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#define FP_PACK_Q(val,X)                \
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  do {                                  \
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    _FP_PACK_CANONICAL(Q,4,X);          \
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    _FP_PACK_RAW_4(Q,val,X);            \
129
  } while (0)
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131
#define FP_PACK_QP(val,X)               \
132
  do {                                  \
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    _FP_PACK_CANONICAL(Q,4,X);          \
134
    if (!FP_INHIBIT_RESULTS)            \
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      _FP_PACK_RAW_4_P(Q,val,X);        \
136
  } while (0)
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138
#define FP_PACK_SEMIRAW_Q(val,X)        \
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  do {                                  \
140
    _FP_PACK_SEMIRAW(Q,4,X);            \
141
    _FP_PACK_RAW_4(Q,val,X);            \
142
  } while (0)
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144
#define FP_PACK_SEMIRAW_QP(val,X)       \
145
  do {                                  \
146
    _FP_PACK_SEMIRAW(Q,4,X);            \
147
    if (!FP_INHIBIT_RESULTS)            \
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      _FP_PACK_RAW_4_P(Q,val,X);        \
149
  } while (0)
150
 
151
#define FP_ISSIGNAN_Q(X)                _FP_ISSIGNAN(Q,4,X)
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#define FP_NEG_Q(R,X)                   _FP_NEG(Q,4,R,X)
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#define FP_ADD_Q(R,X,Y)                 _FP_ADD(Q,4,R,X,Y)
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#define FP_SUB_Q(R,X,Y)                 _FP_SUB(Q,4,R,X,Y)
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#define FP_MUL_Q(R,X,Y)                 _FP_MUL(Q,4,R,X,Y)
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#define FP_DIV_Q(R,X,Y)                 _FP_DIV(Q,4,R,X,Y)
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#define FP_SQRT_Q(R,X)                  _FP_SQRT(Q,4,R,X)
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#define _FP_SQRT_MEAT_Q(R,S,T,X,Q)      _FP_SQRT_MEAT_4(R,S,T,X,Q)
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160
#define FP_CMP_Q(r,X,Y,un)      _FP_CMP(Q,4,r,X,Y,un)
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#define FP_CMP_EQ_Q(r,X,Y)      _FP_CMP_EQ(Q,4,r,X,Y)
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#define FP_CMP_UNORD_Q(r,X,Y)   _FP_CMP_UNORD(Q,4,r,X,Y)
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164
#define FP_TO_INT_Q(r,X,rsz,rsg)        _FP_TO_INT(Q,4,r,X,rsz,rsg)
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#define FP_FROM_INT_Q(X,r,rs,rt)        _FP_FROM_INT(Q,4,X,r,rs,rt)
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167
#define _FP_FRAC_HIGH_Q(X)      _FP_FRAC_HIGH_4(X)
168
#define _FP_FRAC_HIGH_RAW_Q(X)  _FP_FRAC_HIGH_4(X)
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170
#else   /* not _FP_W_TYPE_SIZE < 64 */
171
union _FP_UNION_Q
172
{
173
  TFtype flt /* __attribute__((mode(TF))) */ ;
174
  struct {
175
    _FP_W_TYPE a, b;
176
  } longs;
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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_Q;
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    _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE;
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    _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE;
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#else
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    _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE;
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    _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE;
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    unsigned exp     : _FP_EXPBITS_Q;
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    unsigned sign    : 1;
188
#endif
189
  } bits;
190
};
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192
#define FP_DECL_Q(X)            _FP_DECL(2,X)
193
#define FP_UNPACK_RAW_Q(X,val)  _FP_UNPACK_RAW_2(Q,X,val)
194
#define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_2_P(Q,X,val)
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#define FP_PACK_RAW_Q(val,X)    _FP_PACK_RAW_2(Q,val,X)
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#define FP_PACK_RAW_QP(val,X)           \
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  do {                                  \
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    if (!FP_INHIBIT_RESULTS)            \
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      _FP_PACK_RAW_2_P(Q,val,X);        \
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  } while (0)
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#define FP_UNPACK_Q(X,val)              \
203
  do {                                  \
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    _FP_UNPACK_RAW_2(Q,X,val);          \
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    _FP_UNPACK_CANONICAL(Q,2,X);        \
206
  } while (0)
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#define FP_UNPACK_QP(X,val)             \
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  do {                                  \
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    _FP_UNPACK_RAW_2_P(Q,X,val);        \
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    _FP_UNPACK_CANONICAL(Q,2,X);        \
212
  } while (0)
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#define FP_UNPACK_SEMIRAW_Q(X,val)      \
215
  do {                                  \
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    _FP_UNPACK_RAW_2(Q,X,val);          \
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    _FP_UNPACK_SEMIRAW(Q,2,X);          \
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  } while (0)
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220
#define FP_UNPACK_SEMIRAW_QP(X,val)     \
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  do {                                  \
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    _FP_UNPACK_RAW_2_P(Q,X,val);        \
223
    _FP_UNPACK_SEMIRAW(Q,2,X);          \
224
  } while (0)
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226
#define FP_PACK_Q(val,X)                \
227
  do {                                  \
228
    _FP_PACK_CANONICAL(Q,2,X);          \
229
    _FP_PACK_RAW_2(Q,val,X);            \
230
  } while (0)
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232
#define FP_PACK_QP(val,X)               \
233
  do {                                  \
234
    _FP_PACK_CANONICAL(Q,2,X);          \
235
    if (!FP_INHIBIT_RESULTS)            \
236
      _FP_PACK_RAW_2_P(Q,val,X);        \
237
  } while (0)
238
 
239
#define FP_PACK_SEMIRAW_Q(val,X)        \
240
  do {                                  \
241
    _FP_PACK_SEMIRAW(Q,2,X);            \
242
    _FP_PACK_RAW_2(Q,val,X);            \
243
  } while (0)
244
 
245
#define FP_PACK_SEMIRAW_QP(val,X)       \
246
  do {                                  \
247
    _FP_PACK_SEMIRAW(Q,2,X);            \
248
    if (!FP_INHIBIT_RESULTS)            \
249
      _FP_PACK_RAW_2_P(Q,val,X);        \
250
  } while (0)
251
 
252
#define FP_ISSIGNAN_Q(X)                _FP_ISSIGNAN(Q,2,X)
253
#define FP_NEG_Q(R,X)                   _FP_NEG(Q,2,R,X)
254
#define FP_ADD_Q(R,X,Y)                 _FP_ADD(Q,2,R,X,Y)
255
#define FP_SUB_Q(R,X,Y)                 _FP_SUB(Q,2,R,X,Y)
256
#define FP_MUL_Q(R,X,Y)                 _FP_MUL(Q,2,R,X,Y)
257
#define FP_DIV_Q(R,X,Y)                 _FP_DIV(Q,2,R,X,Y)
258
#define FP_SQRT_Q(R,X)                  _FP_SQRT(Q,2,R,X)
259
#define _FP_SQRT_MEAT_Q(R,S,T,X,Q)      _FP_SQRT_MEAT_2(R,S,T,X,Q)
260
 
261
#define FP_CMP_Q(r,X,Y,un)      _FP_CMP(Q,2,r,X,Y,un)
262
#define FP_CMP_EQ_Q(r,X,Y)      _FP_CMP_EQ(Q,2,r,X,Y)
263
#define FP_CMP_UNORD_Q(r,X,Y)   _FP_CMP_UNORD(Q,2,r,X,Y)
264
 
265
#define FP_TO_INT_Q(r,X,rsz,rsg)        _FP_TO_INT(Q,2,r,X,rsz,rsg)
266
#define FP_FROM_INT_Q(X,r,rs,rt)        _FP_FROM_INT(Q,2,X,r,rs,rt)
267
 
268
#define _FP_FRAC_HIGH_Q(X)      _FP_FRAC_HIGH_2(X)
269
#define _FP_FRAC_HIGH_RAW_Q(X)  _FP_FRAC_HIGH_2(X)
270
 
271
#endif /* not _FP_W_TYPE_SIZE < 64 */

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