[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 07/11] softfloat: add float*_is_zero_or_denormal()
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 07/11] softfloat: add float*_is_zero_or_denormal() |
Date: |
Sun, 15 May 2011 16:13:17 +0200 |
float*_is_zero_or_denormal() is available for float32, but not for
float64, floatx80 and float128. Fix that.
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 129fc39..8fa4af6 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -448,6 +448,11 @@ 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)
@@ -537,6 +542,11 @@ 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);
@@ -625,6 +635,11 @@ 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 &&
--
1.7.2.3
- [Qemu-devel] [PATCH 00/11] softfloat-native removal and i386 improvements, Aurelien Jarno, 2011/05/15
- [Qemu-devel] [PATCH 11/11] target-i386: use floatx80_log2() to implement helper_fyl2x*(), Aurelien Jarno, 2011/05/15
- [Qemu-devel] [PATCH 01/11] target-ppc: remove old CONFIG_SOFTFLOAT #ifdef, Aurelien Jarno, 2011/05/15
- [Qemu-devel] [PATCH 07/11] softfloat: add float*_is_zero_or_denormal(),
Aurelien Jarno <=
- [Qemu-devel] [PATCH 04/11] softfloat: always enable floatx80 and float128 support, Aurelien Jarno, 2011/05/15
- [Qemu-devel] [PATCH 08/11] target-i386: cleanup helper_fxam_ST0(), Aurelien Jarno, 2011/05/15
- [Qemu-devel] [PATCH 06/11] target-i386: use floatx80 constants in helper_fld*_ST0(), Aurelien Jarno, 2011/05/15
- [Qemu-devel] [PATCH 02/11] target-mips/gdbstub: remove old CONFIG_SOFTFLOAT #ifdef, Aurelien Jarno, 2011/05/15