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[Qemu-devel] [PATCH v2 09/20] softfloat-native: add float*_is_any_nan()
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 09/20] softfloat-native: add float*_is_any_nan() functions |
Date: |
Wed, 20 Apr 2011 12:11:58 +0200 |
Add float*_is_any_nan() functions to match the softfloat API.
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
---
fpu/softfloat-native.c | 26 ++++++++++++++++++++++++++
fpu/softfloat-native.h | 3 +++
2 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/fpu/softfloat-native.c b/fpu/softfloat-native.c
index 50355a4..8848651 100644
--- a/fpu/softfloat-native.c
+++ b/fpu/softfloat-native.c
@@ -263,6 +263,15 @@ int float32_is_quiet_nan( float32 a1 )
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.
*----------------------------------------------------------------------------*/
@@ -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
/*----------------------------------------------------------------------------
@@ -511,4 +530,11 @@ int floatx80_is_quiet_nan( floatx80 a1 )
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
diff --git a/fpu/softfloat-native.h b/fpu/softfloat-native.h
index f497e64..6afb74a 100644
--- a/fpu/softfloat-native.h
+++ b/fpu/softfloat-native.h
@@ -255,6 +255,7 @@ int float32_compare( float32, float32 STATUS_PARAM );
int float32_compare_quiet( float32, float32 STATUS_PARAM );
int float32_is_signaling_nan( float32 );
int float32_is_quiet_nan( float32 );
+int float32_is_any_nan( float32 );
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_quiet( float64, float64 STATUS_PARAM );
int float64_is_signaling_nan( float64 );
+int float64_is_any_nan( float64 );
int float64_is_quiet_nan( float64 );
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_is_signaling_nan( floatx80 );
int floatx80_is_quiet_nan( floatx80 );
+int floatx80_is_any_nan( floatx80 );
INLINE floatx80 floatx80_abs(floatx80 a)
{
--
1.7.2.3
- [Qemu-devel] [PATCH v2 11/20] target-i386: fix helper_fbld_ST0() wrt softfloat, (continued)
- [Qemu-devel] [PATCH v2 11/20] target-i386: fix helper_fbld_ST0() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 04/20] softfloat: add pi constants, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 02/20] softfloat: fix floatx80_is_infinity(), Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 15/20] target-i386: replace approx_rsqrt and approx_rcp by softfloat ops, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 06/20] softfloat: add floatx80_compare*() functions, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 20/20] target-i386: switch to softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 19/20] target-i386: fix constants wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 09/20] softfloat-native: add float*_is_any_nan() functions,
Aurelien Jarno <=
- [Qemu-devel] [PATCH v2 12/20] target-i386: fix helper_fxtract() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 16/20] target-i386: add CPU86_LDouble <-> double conversion functions, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 03/20] softfloat: add floatx80 constants, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 05/20] softfloat-native: add a few constant values, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 07/20] softfloat: fix float*_scalnb() corner cases, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 13/20] target-i386: fix helper_fdiv() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 18/20] target-i386: fix helper_fprem() and helper_fprem1() wrt softfloat, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 08/20] softfloat-native: fix float*_scalbn() functions, Aurelien Jarno, 2011/04/20
- [Qemu-devel] [PATCH v2 17/20] target-i386: fix logarithmic and trigonometric helpers wrt softfloat, Aurelien Jarno, 2011/04/20