diff options
| -rw-r--r-- | fpu/softfloat.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fpu/softfloat.h b/fpu/softfloat.h index f34a938..fd61dc4 100644 --- a/fpu/softfloat.h +++ b/fpu/softfloat.h @@ -379,9 +379,16 @@ INLINE int float32_is_zero_or_denormal(float32 a) return (float32_val(a) & 0x7f800000) == 0; } +INLINE float32 float32_set_sign(float32 a, int sign) +{ + return make_float32((float32_val(a) & 0x7fffffff) | (sign << 31)); +} + #define float32_zero make_float32(0) #define float32_one make_float32(0x3f800000) #define float32_ln2 make_float32(0x3f317218) +#define float32_half make_float32(0x3f000000) +#define float32_infinity make_float32(0x7f800000) /*---------------------------------------------------------------------------- @@ -479,9 +486,17 @@ INLINE int float64_is_any_nan(float64 a) return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL); } +INLINE float64 float64_set_sign(float64 a, int sign) +{ + return make_float64((float64_val(a) & 0x7fffffffffffffffULL) + | ((int64_t)sign << 63)); +} + #define float64_zero make_float64(0) #define float64_one make_float64(0x3ff0000000000000LL) #define float64_ln2 make_float64(0x3fe62e42fefa39efLL) +#define float64_half make_float64(0x3fe0000000000000LL) +#define float64_infinity make_float64(0x7ff0000000000000LL) /*---------------------------------------------------------------------------- | The pattern for a default generated double-precision NaN. |