diff options
| -rw-r--r-- | fpu/softfloat-native.c | 9 | ||||
| -rw-r--r-- | fpu/softfloat-native.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/fpu/softfloat-native.c b/fpu/softfloat-native.c index e58551f331..0b24bab329 100644 --- a/fpu/softfloat-native.c +++ b/fpu/softfloat-native.c @@ -250,6 +250,15 @@ int float32_is_signaling_nan( float32 a1) return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); } +int float32_is_nan( float32 a1 ) +{ + float32u u; + uint64_t a; + u.f = a1; + a = u.i; + return ( 0xFF800000 < ( a<<1 ) ); +} + /*---------------------------------------------------------------------------- | Software IEC/IEEE double-precision conversion routines. *----------------------------------------------------------------------------*/ diff --git a/fpu/softfloat-native.h b/fpu/softfloat-native.h index b51c0825bb..817a2a8137 100644 --- a/fpu/softfloat-native.h +++ b/fpu/softfloat-native.h @@ -246,6 +246,7 @@ INLINE int float32_unordered( float32 a, float32 b STATUS_PARAM) int float32_compare( float32, float32 STATUS_PARAM ); int float32_compare_quiet( float32, float32 STATUS_PARAM ); int float32_is_signaling_nan( float32 ); +int float32_is_nan( float32 ); INLINE float32 float32_abs(float32 a) { |