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[Qemu-devel] [PATCH v2 7/9] softfloat: add float*_is_zero_or_denormal()
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 7/9] softfloat: add float*_is_zero_or_denormal() |
Date: |
Mon, 23 May 2011 23:42:49 +0200 |
float*_is_zero_or_denormal() is available for float32, but not for
float64, floatx80 and float128. Fix that.
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
---
fpu/softfloat.h | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index 8931446..bde2500 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -449,6 +449,11 @@ INLINE int float64_is_any_nan(float64 a)
return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL);
}
+INLINE int float64_is_zero_or_denormal(float64 a)
+{
+ return (float64_val(a) & 0x7ff0000000000000LL) == 0;
+}
+
INLINE float64 float64_set_sign(float64 a, int sign)
{
return make_float64((float64_val(a) & 0x7fffffffffffffffULL)
@@ -538,6 +543,11 @@ INLINE int floatx80_is_zero(floatx80 a)
return (a.high & 0x7fff) == 0 && a.low == 0;
}
+INLINE int floatx80_is_zero_or_denormal(floatx80 a)
+{
+ return (a.high & 0x7fff) == 0;
+}
+
INLINE int floatx80_is_any_nan(floatx80 a)
{
return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1);
@@ -626,6 +636,11 @@ INLINE int float128_is_zero(float128 a)
return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0;
}
+INLINE int float128_is_zero_or_denormal(float128 a)
+{
+ return (a.high & 0x7fff000000000000LL) == 0;
+}
+
INLINE int float128_is_any_nan(float128 a)
{
return ((a.high >> 48) & 0x7fff) == 0x7fff &&
--
1.7.5.1
- [Qemu-devel] [PATCH v2 9/9] target-i386: add support for FPU exceptions, (continued)
- [Qemu-devel] [PATCH v2 9/9] target-i386: add support for FPU exceptions, Aurelien Jarno, 2011/05/23
- [Qemu-devel] [PATCH v2 6/9] target-i386: use floatx80 constants in helper_fld*_ST0(), Aurelien Jarno, 2011/05/23
- [Qemu-devel] [PATCH v2 8/9] target-i386: cleanup helper_fxam_ST0(), Aurelien Jarno, 2011/05/23
- [Qemu-devel] [PATCH v2 4/9] softfloat-native: remove, Aurelien Jarno, 2011/05/23
- [Qemu-devel] [PATCH v2 3/9] target-i386: remove old code handling float64, Aurelien Jarno, 2011/05/23
- [Qemu-devel] [PATCH v2 7/9] softfloat: add float*_is_zero_or_denormal(),
Aurelien Jarno <=