diff options
Diffstat (limited to 'fpu/softfloat.h')
| -rw-r--r-- | fpu/softfloat.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/fpu/softfloat.h b/fpu/softfloat.h index 8b28c1787..b46d63ca6 100644 --- a/fpu/softfloat.h +++ b/fpu/softfloat.h @@ -190,10 +190,20 @@ typedef struct float_status { #ifdef FLOATX80 signed char floatx80_rounding_precision; #endif + flag flush_to_zero; + flag default_nan_mode; } float_status; void set_float_rounding_mode(int val STATUS_PARAM); void set_float_exception_flags(int val STATUS_PARAM); +INLINE void set_flush_to_zero(flag val STATUS_PARAM) +{ + STATUS(flush_to_zero) = val; +} +INLINE void set_default_nan_mode(flag val STATUS_PARAM) +{ + STATUS(default_nan_mode) = val; +} INLINE int get_float_exception_flags(float_status *status) { return STATUS(float_exception_flags); @@ -281,6 +291,21 @@ INLINE float32 float32_chs(float32 a) return make_float32(float32_val(a) ^ 0x80000000); } +INLINE int float32_is_infinity(float32 a) +{ + return (float32_val(a) & 0x7fffffff) == 0x7f800000; +} + +INLINE int float32_is_neg(float32 a) +{ + return float32_val(a) >> 31; +} + +INLINE int float32_is_zero(float32 a) +{ + return (float32_val(a) & 0x7fffffff) == 0; +} + #define float32_zero make_float32(0) /*---------------------------------------------------------------------------- @@ -335,6 +360,21 @@ INLINE float64 float64_chs(float64 a) return make_float64(float64_val(a) ^ 0x8000000000000000LL); } +INLINE int float64_is_infinity(float64 a) +{ + return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL; +} + +INLINE int float64_is_neg(float64 a) +{ + return float64_val(a) >> 63; +} + +INLINE int float64_is_zero(float64 a) +{ + return (float64_val(a) & 0x7fffffffffffffffLL) == 0; +} + #define float64_zero make_float64(0) #ifdef FLOATX80 @@ -384,6 +424,21 @@ INLINE floatx80 floatx80_chs(floatx80 a) return a; } +INLINE int floatx80_is_infinity(floatx80 a) +{ + return (a.high & 0x7fff) == 0x7fff && a.low == 0; +} + +INLINE int floatx80_is_neg(floatx80 a) +{ + return a.high >> 15; +} + +INLINE int floatx80_is_zero(floatx80 a) +{ + return (a.high & 0x7fff) == 0 && a.low == 0; +} + #endif #ifdef FLOAT128 @@ -435,6 +490,21 @@ INLINE float128 float128_chs(float128 a) return a; } +INLINE int float128_is_infinity(float128 a) +{ + return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0; +} + +INLINE int float128_is_neg(float128 a) +{ + return a.high >> 63; +} + +INLINE int float128_is_zero(float128 a) +{ + return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0; +} + #endif #else /* CONFIG_SOFTFLOAT */ |