* [Qemu-devel] [6002] softfloat-native: add float32_is_nan()
@ 2008-12-13 11:46 Aurelien Jarno
0 siblings, 0 replies; only message in thread
From: Aurelien Jarno @ 2008-12-13 11:46 UTC (permalink / raw)
To: qemu-devel
Revision: 6002
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6002
Author: aurel32
Date: 2008-12-13 11:46:15 +0000 (Sat, 13 Dec 2008)
Log Message:
-----------
softfloat-native: add float32_is_nan()
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Modified Paths:
--------------
trunk/fpu/softfloat-native.c
trunk/fpu/softfloat-native.h
Modified: trunk/fpu/softfloat-native.c
===================================================================
--- trunk/fpu/softfloat-native.c 2008-12-13 11:37:02 UTC (rev 6001)
+++ trunk/fpu/softfloat-native.c 2008-12-13 11:46:15 UTC (rev 6002)
@@ -250,6 +250,15 @@
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.
*----------------------------------------------------------------------------*/
Modified: trunk/fpu/softfloat-native.h
===================================================================
--- trunk/fpu/softfloat-native.h 2008-12-13 11:37:02 UTC (rev 6001)
+++ trunk/fpu/softfloat-native.h 2008-12-13 11:46:15 UTC (rev 6002)
@@ -246,6 +246,7 @@
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)
{
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