/* Software floating-point emulation.
Definitions for IEEE Single Precision .
Copyright ( C ) 1997 , 1998 , 1999 Free Software Foundation , Inc .
This file is part of the GNU C Library .
Contributed by Richard Henderson ( rth @ cygnus . com ) ,
Jakub Jelinek ( jj @ ultra . linux . cz ) ,
David S . Miller ( davem @ redhat . com ) and
Peter Maydell ( pmaydell @ chiark . greenend . org . uk ) .
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 __MATH_EMU_SINGLE_H__
#define __MATH_EMU_SINGLE_H__
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
#endif
#define _FP_FRACBITS_S 24
#define _FP_FRACXBITS_S (_FP_W_TYPE_SIZE - _FP_FRACBITS_S)
#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S)
#define _FP_WFRACXBITS_S (_FP_W_TYPE_SIZE - _FP_WFRACBITS_S)
#define _FP_EXPBITS_S 8
#define _FP_EXPBIAS_S 127
#define _FP_EXPMAX_S 255
#define _FP_QNANBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-2 ))
#define _FP_IMPLBIT_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1 ))
#define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S))
/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be
chosen by the target machine. */
union _FP_UNION_S
{
float flt;
struct {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1 ;
unsigned exp : _FP_EXPBITS_S;
unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0 );
#else
unsigned frac : _FP_FRACBITS_S - (_FP_IMPLBIT_S != 0 );
unsigned exp : _FP_EXPBITS_S;
unsigned sign : 1 ;
#endif
} bits __attribute__((packed));
};
#define FP_DECL_S(X) _FP_DECL(1 ,X)
#define FP_UNPACK_RAW_S(X,val) _FP_UNPACK_RAW_1(S,X,val)
#define FP_UNPACK_RAW_SP(X,val) _FP_UNPACK_RAW_1_P(S,X,val)
#define FP_PACK_RAW_S(val,X) _FP_PACK_RAW_1(S,val,X)
#define FP_PACK_RAW_SP(val,X) \
do { \
if (!FP_INHIBIT_RESULTS) \
_FP_PACK_RAW_1_P(S,val,X); \
} while (0 )
#define FP_UNPACK_S(X,val) \
do { \
_FP_UNPACK_RAW_1(S,X,val); \
_FP_UNPACK_CANONICAL(S,1 ,X); \
} while (0 )
#define FP_UNPACK_SP(X,val) \
do { \
_FP_UNPACK_RAW_1_P(S,X,val); \
_FP_UNPACK_CANONICAL(S,1 ,X); \
} while (0 )
#define FP_PACK_S(val,X) \
do { \
_FP_PACK_CANONICAL(S,1 ,X); \
_FP_PACK_RAW_1(S,val,X); \
} while (0 )
#define FP_PACK_SP(val,X) \
do { \
_FP_PACK_CANONICAL(S,1 ,X); \
if (!FP_INHIBIT_RESULTS) \
_FP_PACK_RAW_1_P(S,val,X); \
} while (0 )
#define FP_ISSIGNAN_S(X) _FP_ISSIGNAN(S,1 ,X)
#define FP_NEG_S(R,X) _FP_NEG(S,1 ,R,X)
#define FP_ADD_S(R,X,Y) _FP_ADD(S,1 ,R,X,Y)
#define FP_SUB_S(R,X,Y) _FP_SUB(S,1 ,R,X,Y)
#define FP_MUL_S(R,X,Y) _FP_MUL(S,1 ,R,X,Y)
#define FP_DIV_S(R,X,Y) _FP_DIV(S,1 ,R,X,Y)
#define FP_SQRT_S(R,X) _FP_SQRT(S,1 ,R,X)
#define _FP_SQRT_MEAT_S(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q)
#define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1 ,r,X,Y,un)
#define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1 ,r,X,Y)
#define FP_TO_INT_S(r,X,rsz,rsg) _FP_TO_INT(S,1 ,r,X,rsz,rsg)
#define FP_TO_INT_ROUND_S(r,X,rsz,rsg) _FP_TO_INT_ROUND(S,1 ,r,X,rsz,rsg)
#define FP_FROM_INT_S(X,r,rs,rt) _FP_FROM_INT(S,1 ,X,r,rs,rt)
#define _FP_FRAC_HIGH_S(X) _FP_FRAC_HIGH_1(X)
#define _FP_FRAC_HIGH_RAW_S(X) _FP_FRAC_HIGH_1(X)
#endif /* __MATH_EMU_SINGLE_H__ */
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