#endif
#include <inttypes.h>
-#include "config.h"
+#include "config-host.h"
/*----------------------------------------------------------------------------
| Each of the following `typedef's defines the most convenient type that holds
#define LIT64( a ) a##LL
#define INLINE static inline
-#if defined(TARGET_MIPS) || defined(TARGET_SH4) || defined(TARGET_UNICORE32)
-#define SNAN_BIT_IS_ONE 1
-#else
-#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;
#define make_floatx80(exp, mant) ((floatx80) { mant, exp })
-#endif
-#ifdef FLOAT128
+#define make_floatx80_init(exp, mant) { .low = mant, .high = exp }
typedef struct {
#ifdef HOST_WORDS_BIGENDIAN
uint64_t high, low;
uint64_t low, high;
#endif
} float128;
-#endif
+#define make_float128(high_, low_) ((float128) { .high = high_, .low = low_ })
+#define make_float128_init(high_, low_) { .high = high_, .low = low_ }
/*----------------------------------------------------------------------------
| 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
*----------------------------------------------------------------------------*/
void float_raise( int8 flags STATUS_PARAM);
+/*----------------------------------------------------------------------------
+| Options to indicate which negations to perform in float*_muladd()
+| Using these differs from negating an input or output before calling
+| the muladd function in that this means that a NaN doesn't have its
+| sign bit inverted before it is propagated.
+*----------------------------------------------------------------------------*/
+enum {
+ float_muladd_negate_c = 1,
+ float_muladd_negate_product = 2,
+ float_muladd_negate_result = 3,
+};
+
/*----------------------------------------------------------------------------
| Software IEC/IEEE integer-to-floating-point conversion routines.
*----------------------------------------------------------------------------*/
float32 int32_to_float32( int32 STATUS_PARAM );
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
+float32 uint32_to_float32( uint32 STATUS_PARAM );
+float64 uint32_to_float64( uint32 STATUS_PARAM );
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.
/*----------------------------------------------------------------------------
| The pattern for a default generated half-precision NaN.
*----------------------------------------------------------------------------*/
-#if defined(TARGET_ARM)
-#define float16_default_nan make_float16(0x7E00)
-#elif SNAN_BIT_IS_ONE
-#define float16_default_nan make_float16(0x7DFF)
-#else
-#define float16_default_nan make_float16(0xFE00)
-#endif
+extern const float16 float16_default_nan;
/*----------------------------------------------------------------------------
| Software IEC/IEEE single-precision conversion routines.
*----------------------------------------------------------------------------*/
int16 float32_to_int16_round_to_zero( float32 STATUS_PARAM );
-unsigned int float32_to_uint16_round_to_zero( float32 STATUS_PARAM );
+uint16 float32_to_uint16_round_to_zero( float32 STATUS_PARAM );
int32 float32_to_int32( float32 STATUS_PARAM );
int32 float32_to_int32_round_to_zero( float32 STATUS_PARAM );
uint32 float32_to_uint32( float32 STATUS_PARAM );
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.
float32 float32_mul( float32, float32 STATUS_PARAM );
float32 float32_div( float32, float32 STATUS_PARAM );
float32 float32_rem( float32, float32 STATUS_PARAM );
+float32 float32_muladd(float32, float32, float32, int STATUS_PARAM);
float32 float32_sqrt( float32 STATUS_PARAM );
float32 float32_exp2( float32 STATUS_PARAM );
float32 float32_log2( float32 STATUS_PARAM );
/*----------------------------------------------------------------------------
| The pattern for a default generated single-precision NaN.
*----------------------------------------------------------------------------*/
-#if defined(TARGET_SPARC)
-#define float32_default_nan make_float32(0x7FFFFFFF)
-#elif defined(TARGET_PPC) || defined(TARGET_ARM) || defined(TARGET_ALPHA)
-#define float32_default_nan make_float32(0x7FC00000)
-#elif SNAN_BIT_IS_ONE
-#define float32_default_nan make_float32(0x7FBFFFFF)
-#else
-#define float32_default_nan make_float32(0xFFC00000)
-#endif
+extern const float32 float32_default_nan;
/*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision conversion routines.
*----------------------------------------------------------------------------*/
int16 float64_to_int16_round_to_zero( float64 STATUS_PARAM );
-unsigned int float64_to_uint16_round_to_zero( float64 STATUS_PARAM );
+uint16 float64_to_uint16_round_to_zero( float64 STATUS_PARAM );
int32 float64_to_int32( float64 STATUS_PARAM );
int32 float64_to_int32_round_to_zero( float64 STATUS_PARAM );
uint32 float64_to_uint32( float64 STATUS_PARAM );
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.
float64 float64_mul( float64, float64 STATUS_PARAM );
float64 float64_div( float64, float64 STATUS_PARAM );
float64 float64_rem( float64, float64 STATUS_PARAM );
+float64 float64_muladd(float64, float64, float64, int STATUS_PARAM);
float64 float64_sqrt( float64 STATUS_PARAM );
float64 float64_log2( float64 STATUS_PARAM );
int float64_eq( float64, float64 STATUS_PARAM );
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)
/*----------------------------------------------------------------------------
| The pattern for a default generated double-precision NaN.
*----------------------------------------------------------------------------*/
-#if defined(TARGET_SPARC)
-#define float64_default_nan make_float64(LIT64( 0x7FFFFFFFFFFFFFFF ))
-#elif defined(TARGET_PPC) || defined(TARGET_ARM) || defined(TARGET_ALPHA)
-#define float64_default_nan make_float64(LIT64( 0x7FF8000000000000 ))
-#elif SNAN_BIT_IS_ONE
-#define float64_default_nan make_float64(LIT64( 0x7FF7FFFFFFFFFFFF ))
-#else
-#define float64_default_nan make_float64(LIT64( 0xFFF8000000000000 ))
-#endif
-
-#ifdef FLOATX80
+extern const float64 float64_default_nan;
/*----------------------------------------------------------------------------
| 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.
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_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,
-| respectively.
+| The pattern for a default generated extended double-precision NaN.
*----------------------------------------------------------------------------*/
-#if SNAN_BIT_IS_ONE
-#define floatx80_default_nan_high 0x7FFF
-#define floatx80_default_nan_low LIT64( 0xBFFFFFFFFFFFFFFF )
-#else
-#define floatx80_default_nan_high 0xFFFF
-#define floatx80_default_nan_low LIT64( 0xC000000000000000 )
-#endif
-
-#endif
-
-#ifdef FLOAT128
+extern const floatx80 floatx80_default_nan;
/*----------------------------------------------------------------------------
| 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 &&
}
/*----------------------------------------------------------------------------
-| The pattern for a default generated quadruple-precision NaN. The `high' and
-| `low' values hold the most- and least-significant bits, respectively.
+| The pattern for a default generated quadruple-precision NaN.
*----------------------------------------------------------------------------*/
-#if SNAN_BIT_IS_ONE
-#define float128_default_nan_high LIT64( 0x7FFF7FFFFFFFFFFF )
-#define float128_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF )
-#else
-#define float128_default_nan_high LIT64( 0xFFFF800000000000 )
-#define float128_default_nan_low LIT64( 0x0000000000000000 )
-#endif
-
-#endif
-
-#else /* CONFIG_SOFTFLOAT */
-
-#include "softfloat-native.h"
-
-#endif /* !CONFIG_SOFTFLOAT */
+extern const float128 float128_default_nan;
#endif /* !SOFTFLOAT_H */