gwj / at91sam9263 · Commits

Commit 629bd74a4fcb68dbec658da455fa1143315ec646

Authored by aurel32
1 parent 3f911a51

softfloat-native: add float32_is_nan() 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6002 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 2 changed files with 10 additions and 0 deletions
fpu/softfloat-native.c
  View file @629bd74
@@ -250,6 +250,15 @@ int float32_is_signaling_nan( float32 a1) @@ -250,6 +250,15 @@ int float32_is_signaling_nan( float32 a1)
250 return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); 250 return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF );
251 } 251 }
252 252
  253 +int float32_is_nan( float32 a1 )
  254 +{
  255 + float32u u;
  256 + uint64_t a;
  257 + u.f = a1;
  258 + a = u.i;
  259 + return ( 0xFF800000 < ( a<<1 ) );
  260 +}
  261 +
253 /*---------------------------------------------------------------------------- 262 /*----------------------------------------------------------------------------
254 | Software IEC/IEEE double-precision conversion routines. 263 | Software IEC/IEEE double-precision conversion routines.
255 *----------------------------------------------------------------------------*/ 264 *----------------------------------------------------------------------------*/
fpu/softfloat-native.h
  View file @629bd74
@@ -246,6 +246,7 @@ INLINE int float32_unordered( float32 a, float32 b STATUS_PARAM) @@ -246,6 +246,7 @@ INLINE int float32_unordered( float32 a, float32 b STATUS_PARAM)
246 int float32_compare( float32, float32 STATUS_PARAM ); 246 int float32_compare( float32, float32 STATUS_PARAM );
247 int float32_compare_quiet( float32, float32 STATUS_PARAM ); 247 int float32_compare_quiet( float32, float32 STATUS_PARAM );
248 int float32_is_signaling_nan( float32 ); 248 int float32_is_signaling_nan( float32 );
  249 +int float32_is_nan( float32 );
249 250
250 INLINE float32 float32_abs(float32 a) 251 INLINE float32 float32_abs(float32 a)
251 { 252 {