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softfloat-native: add float*_is_any_nan() functions 

Add float*_is_any_nan() functions to match the softfloat API.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-04-20 13:04:23 +02:00
parent d6882cf01f
commit 4cc5383f80
2 changed files with 29 additions and 0 deletions
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26
fpu/softfloat-native.c
View File

@ -263,6 +263,15 @@ int float32_is_quiet_nan( float32 a1 )
return ( 0xFF800000 < ( a<<1 ) ); return ( 0xFF800000 < ( a<<1 ) );
} }
int float32_is_any_nan( float32 a1 )
{
float32u u;
uint32_t a;
u.f = a1;
a = u.i;
return (a & ~(1 << 31)) > 0x7f800000U;
}
/*---------------------------------------------------------------------------- /*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision conversion routines. | Software IEC/IEEE double-precision conversion routines.
*----------------------------------------------------------------------------*/ *----------------------------------------------------------------------------*/
@ -422,6 +431,16 @@ int float64_is_quiet_nan( float64 a1 )
} }
int float64_is_any_nan( float64 a1 )
{
float64u u;
uint64_t a;
u.f = a1;
a = u.i;
return (a & ~(1ULL << 63)) > LIT64 (0x7FF0000000000000 );
}
#ifdef FLOATX80 #ifdef FLOATX80
/*---------------------------------------------------------------------------- /*----------------------------------------------------------------------------
@ -511,4 +530,11 @@ int floatx80_is_quiet_nan( floatx80 a1 )
return ( ( u.i.high & 0x7FFF ) == 0x7FFF ) && (uint64_t) ( u.i.low<<1 ); return ( ( u.i.high & 0x7FFF ) == 0x7FFF ) && (uint64_t) ( u.i.low<<1 );
} }
int floatx80_is_any_nan( floatx80 a1 )
{
floatx80u u;
u.f = a1;
return ((u.i.high & 0x7FFF) == 0x7FFF) && ( u.i.low<<1 );
}
#endif #endif

3
fpu/softfloat-native.h
View File

@ -255,6 +255,7 @@ int float32_compare( float32, float32 STATUS_PARAM );
int float32_compare_quiet( float32, float32 STATUS_PARAM ); int float32_compare_quiet( float32, float32 STATUS_PARAM );
int float32_is_signaling_nan( float32 ); int float32_is_signaling_nan( float32 );
int float32_is_quiet_nan( float32 ); int float32_is_quiet_nan( float32 );
int float32_is_any_nan( float32 );
INLINE float32 float32_abs(float32 a) INLINE float32 float32_abs(float32 a)
{ {
@ -375,6 +376,7 @@ INLINE int float64_unordered_quiet( float64 a, float64 b STATUS_PARAM)
int float64_compare( float64, float64 STATUS_PARAM ); int float64_compare( float64, float64 STATUS_PARAM );
int float64_compare_quiet( float64, float64 STATUS_PARAM ); int float64_compare_quiet( float64, float64 STATUS_PARAM );
int float64_is_signaling_nan( float64 ); int float64_is_signaling_nan( float64 );
int float64_is_any_nan( float64 );
int float64_is_quiet_nan( float64 ); int float64_is_quiet_nan( float64 );
INLINE float64 float64_abs(float64 a) INLINE float64 float64_abs(float64 a)
@ -492,6 +494,7 @@ int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM ); int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
int floatx80_is_signaling_nan( floatx80 ); int floatx80_is_signaling_nan( floatx80 );
int floatx80_is_quiet_nan( floatx80 ); int floatx80_is_quiet_nan( floatx80 );
int floatx80_is_any_nan( floatx80 );
INLINE floatx80 floatx80_abs(floatx80 a) INLINE floatx80 floatx80_abs(floatx80 a)
{ {