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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [ppc/] [math-emu/] [single.h] - Blame information for rev 1765

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Line No. Rev Author Line
1 1275 phoenix
/*
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 * Definitions for IEEE Single Precision
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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_FRACBITS_S          24
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#define _FP_FRACXBITS_S         (_FP_W_TYPE_SIZE - _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_W_TYPE_SIZE - _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_IMPLBIT_S           ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1))
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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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union _FP_UNION_S
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{
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  float 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_PACK_RAW_S(val,X)    _FP_PACK_RAW_1(S,val,X)
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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_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_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_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_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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