Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * Definitions for IEEE Single Precision

 */

#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_PACK_RAW_S(val,X)    _FP_PACK_RAW_1(S,val,X)

#define FP_UNPACK_S(X,val)              \

  do {                                  \

    _FP_UNPACK_RAW_1(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_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_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_FROM_INT_S(X,r,rs,rt)  _FP_FROM_INT(S,1,X,r,rs,rt)