These constants and utility function are needed to implement some helpers. Defining constants avoids the need to re-compute them at runtime.
Signed-off-by: Christophe Lyon <christophe.l...@st.com> --- fpu/softfloat.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/fpu/softfloat.h b/fpu/softfloat.h index f34a938..9bd4a50 100644 --- a/fpu/softfloat.h +++ b/fpu/softfloat.h @@ -379,9 +379,15 @@ 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_infinity make_float32(0x7f800000) /*---------------------------------------------------------------------------- @@ -482,6 +488,9 @@ INLINE int float64_is_any_nan(float64 a) #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_256 make_float64(0x4070000000000000LL) +#define float64_512 make_float64(0x4080000000000000LL) /*---------------------------------------------------------------------------- | The pattern for a default generated double-precision NaN. -- 1.7.2.3