#define SNAN_BIT_IS_ONE 0
#endif
-/*----------------------------------------------------------------------------
-| The macro `FLOATX80' must be defined to enable the extended double-precision
-| floating-point format `floatx80'. If this macro is not defined, the
-| `floatx80' type will not be defined, and none of the functions that either
-| input or output the `floatx80' type will be defined. The same applies to
-| the `FLOAT128' macro and the quadruple-precision format `float128'.
-*----------------------------------------------------------------------------*/
-#ifdef CONFIG_SOFTFLOAT
-/* bit exact soft float support */
-#define FLOATX80
-#define FLOAT128
-#else
-/* native float support */
-#if (defined(__i386__) || defined(__x86_64__)) && !defined(CONFIG_BSD)
-#define FLOATX80
-#endif
-#endif /* !CONFIG_SOFTFLOAT */
-
#define STATUS_PARAM , float_status *status
#define STATUS(field) status->field
#define STATUS_VAR , status
float_relation_unordered = 2
};
-#ifdef CONFIG_SOFTFLOAT
/*----------------------------------------------------------------------------
| Software IEC/IEEE floating-point types.
*----------------------------------------------------------------------------*/
#define const_float32(x) (x)
#define const_float64(x) (x)
#endif
-#ifdef FLOATX80
typedef struct {
uint64_t low;
uint16_t high;
} floatx80;
-#endif
-#ifdef FLOAT128
+#define make_floatx80(exp, mant) ((floatx80) { mant, exp })
typedef struct {
#ifdef HOST_WORDS_BIGENDIAN
uint64_t high, low;
uint64_t low, high;
#endif
} float128;
-#endif
/*----------------------------------------------------------------------------
| Software IEC/IEEE floating-point underflow tininess-detection mode.
float_flag_overflow = 8,
float_flag_underflow = 16,
float_flag_inexact = 32,
- float_flag_input_denormal = 64
+ float_flag_input_denormal = 64,
+ float_flag_output_denormal = 128
};
typedef struct float_status {
signed char float_detect_tininess;
signed char float_rounding_mode;
signed char float_exception_flags;
-#ifdef FLOATX80
signed char floatx80_rounding_precision;
-#endif
/* should denormalised results go to zero and set the inexact flag? */
flag flush_to_zero;
/* should denormalised inputs go to zero and set the input_denormal flag? */
{
return STATUS(float_exception_flags);
}
-#ifdef FLOATX80
void set_floatx80_rounding_precision(int val STATUS_PARAM);
-#endif
/*----------------------------------------------------------------------------
| Routine to raise any or all of the software IEC/IEEE floating-point
float64 int32_to_float64( int32 STATUS_PARAM );
float32 uint32_to_float32( unsigned int STATUS_PARAM );
float64 uint32_to_float64( unsigned int STATUS_PARAM );
-#ifdef FLOATX80
floatx80 int32_to_floatx80( int32 STATUS_PARAM );
-#endif
-#ifdef FLOAT128
float128 int32_to_float128( int32 STATUS_PARAM );
-#endif
float32 int64_to_float32( int64 STATUS_PARAM );
float32 uint64_to_float32( uint64 STATUS_PARAM );
float64 int64_to_float64( int64 STATUS_PARAM );
float64 uint64_to_float64( uint64 STATUS_PARAM );
-#ifdef FLOATX80
floatx80 int64_to_floatx80( int64 STATUS_PARAM );
-#endif
-#ifdef FLOAT128
float128 int64_to_float128( int64 STATUS_PARAM );
-#endif
/*----------------------------------------------------------------------------
| Software half-precision conversion routines.
int64 float32_to_int64( float32 STATUS_PARAM );
int64 float32_to_int64_round_to_zero( float32 STATUS_PARAM );
float64 float32_to_float64( float32 STATUS_PARAM );
-#ifdef FLOATX80
floatx80 float32_to_floatx80( float32 STATUS_PARAM );
-#endif
-#ifdef FLOAT128
float128 float32_to_float128( float32 STATUS_PARAM );
-#endif
/*----------------------------------------------------------------------------
| Software IEC/IEEE single-precision operations.
#define float32_zero make_float32(0)
#define float32_one make_float32(0x3f800000)
#define float32_ln2 make_float32(0x3f317218)
+#define float32_pi make_float32(0x40490fdb)
#define float32_half make_float32(0x3f000000)
#define float32_infinity make_float32(0x7f800000)
uint64 float64_to_uint64 (float64 a STATUS_PARAM);
uint64 float64_to_uint64_round_to_zero (float64 a STATUS_PARAM);
float32 float64_to_float32( float64 STATUS_PARAM );
-#ifdef FLOATX80
floatx80 float64_to_floatx80( float64 STATUS_PARAM );
-#endif
-#ifdef FLOAT128
float128 float64_to_float128( float64 STATUS_PARAM );
-#endif
/*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision operations.
return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL);
}
+INLINE int float64_is_zero_or_denormal(float64 a)
+{
+ return (float64_val(a) & 0x7ff0000000000000LL) == 0;
+}
+
INLINE float64 float64_set_sign(float64 a, int sign)
{
return make_float64((float64_val(a) & 0x7fffffffffffffffULL)
#define float64_zero make_float64(0)
#define float64_one make_float64(0x3ff0000000000000LL)
#define float64_ln2 make_float64(0x3fe62e42fefa39efLL)
+#define float64_pi make_float64(0x400921fb54442d18LL)
#define float64_half make_float64(0x3fe0000000000000LL)
#define float64_infinity make_float64(0x7ff0000000000000LL)
#define float64_default_nan make_float64(LIT64( 0xFFF8000000000000 ))
#endif
-#ifdef FLOATX80
-
/*----------------------------------------------------------------------------
| Software IEC/IEEE extended double-precision conversion routines.
*----------------------------------------------------------------------------*/
int64 floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM );
float32 floatx80_to_float32( floatx80 STATUS_PARAM );
float64 floatx80_to_float64( floatx80 STATUS_PARAM );
-#ifdef FLOAT128
float128 floatx80_to_float128( floatx80 STATUS_PARAM );
-#endif
/*----------------------------------------------------------------------------
| Software IEC/IEEE extended double-precision operations.
int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM );
int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM );
int floatx80_unordered_quiet( floatx80, floatx80 STATUS_PARAM );
+int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
+int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
int floatx80_is_quiet_nan( floatx80 );
int floatx80_is_signaling_nan( floatx80 );
floatx80 floatx80_maybe_silence_nan( floatx80 );
INLINE int floatx80_is_infinity(floatx80 a)
{
- return (a.high & 0x7fff) == 0x7fff && a.low == 0;
+ return (a.high & 0x7fff) == 0x7fff && a.low == 0x8000000000000000LL;
}
INLINE int floatx80_is_neg(floatx80 a)
return (a.high & 0x7fff) == 0 && a.low == 0;
}
+INLINE int floatx80_is_zero_or_denormal(floatx80 a)
+{
+ return (a.high & 0x7fff) == 0;
+}
+
INLINE int floatx80_is_any_nan(floatx80 a)
{
return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1);
}
+#define floatx80_zero make_floatx80(0x0000, 0x0000000000000000LL)
+#define floatx80_one make_floatx80(0x3fff, 0x8000000000000000LL)
+#define floatx80_ln2 make_floatx80(0x3ffe, 0xb17217f7d1cf79acLL)
+#define floatx80_pi make_floatx80(0x4000, 0xc90fdaa22168c235LL)
+#define floatx80_half make_floatx80(0x3ffe, 0x8000000000000000LL)
+#define floatx80_infinity make_floatx80(0x7fff, 0x8000000000000000LL)
+
/*----------------------------------------------------------------------------
| The pattern for a default generated extended double-precision NaN. The
| `high' and `low' values hold the most- and least-significant bits,
#define floatx80_default_nan_low LIT64( 0xC000000000000000 )
#endif
-#endif
-
-#ifdef FLOAT128
-
/*----------------------------------------------------------------------------
| Software IEC/IEEE quadruple-precision conversion routines.
*----------------------------------------------------------------------------*/
int64 float128_to_int64_round_to_zero( float128 STATUS_PARAM );
float32 float128_to_float32( float128 STATUS_PARAM );
float64 float128_to_float64( float128 STATUS_PARAM );
-#ifdef FLOATX80
floatx80 float128_to_floatx80( float128 STATUS_PARAM );
-#endif
/*----------------------------------------------------------------------------
| Software IEC/IEEE quadruple-precision operations.
return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0;
}
+INLINE int float128_is_zero_or_denormal(float128 a)
+{
+ return (a.high & 0x7fff000000000000LL) == 0;
+}
+
INLINE int float128_is_any_nan(float128 a)
{
return ((a.high >> 48) & 0x7fff) == 0x7fff &&
#define float128_default_nan_low LIT64( 0x0000000000000000 )
#endif
-#endif
-
-#else /* CONFIG_SOFTFLOAT */
-
-#include "softfloat-native.h"
-
-#endif /* !CONFIG_SOFTFLOAT */
-
#endif /* !SOFTFLOAT_H */