From: aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sat, 13 Dec 2008 11:46:15 +0000 (+0000)
Subject: softfloat-native: add float32_is_nan()
X-Git-Tag: release_0_10_0~684
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=629bd74a4fcb68dbec658da455fa1143315ec646;p=thirdparty%2Fqemu.git

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
---

diff --git a/fpu/softfloat-native.c b/fpu/softfloat-native.c
index e58551f331f..0b24bab329c 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 b51c0825bb1..817a2a81372 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)
 {