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[Qemu-devel] [PATCH 08/14] softfloat: Add float*_is_any_nan() functions
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 08/14] softfloat: Add float*_is_any_nan() functions |
Date: |
Tue, 7 Dec 2010 15:43:37 +0000 |
Add float*_is_any_nan() functions which return true if the argument
is a NaN of any kind (quiet or signalling).
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Nathan Froyd <address@hidden>
---
fpu/softfloat.h | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index 9528825..9bece80 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -314,6 +314,11 @@ INLINE int float32_is_zero(float32 a)
return (float32_val(a) & 0x7fffffff) == 0;
}
+INLINE int float32_is_any_nan(float32 a)
+{
+ return ((float32_val(a) & ~(1 << 31)) > 0x7f800000UL);
+}
+
#define float32_zero make_float32(0)
#define float32_one make_float32(0x3f800000)
#define float32_ln2 make_float32(0x3f317218)
@@ -386,6 +391,11 @@ INLINE int float64_is_zero(float64 a)
return (float64_val(a) & 0x7fffffffffffffffLL) == 0;
}
+INLINE int float64_is_any_nan(float64 a)
+{
+ return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL);
+}
+
#define float64_zero make_float64(0)
#define float64_one make_float64(0x3ff0000000000000LL)
#define float64_ln2 make_float64(0x3fe62e42fefa39efLL)
--
1.6.3.3
- [Qemu-devel] [PATCH 00/14] [PULL] ARM fixes, v2, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 04/14] ARM: fix ldrexd/strexd, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 11/14] ARM: Return correct result for single<->double conversion of NaN, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 14/14] ARM: Implement VCVT to 16 bit integer using new softfloat routines, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 05/14] ARM: Fix decoding of VFP forms of VCVT between float and int/fixed, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 13/14] softfloat: Add float/double to 16 bit integer conversion functions, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 10/14] softfloat: Add float*_maybe_silence_nan() functions, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 03/14] target-arm: Handle 'smc' as an undefined instruction, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 02/14] target-arm: Fix mixup in decoding of saturating add and sub, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 12/14] ARM: Ignore top 16 bits when doing VCVT from 16 bit fixed point, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 08/14] softfloat: Add float*_is_any_nan() functions,
Peter Maydell <=
- [Qemu-devel] [PATCH 01/14] target-arm: Add support for PKHxx in thumb2, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 07/14] ARM: Fix sense of to_integer bit in Neon VCVT float/int conversion, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 06/14] ARM: Fix decoding of Neon forms of VCVT between float and fixed point, Peter Maydell, 2010/12/07
- [Qemu-devel] [PATCH 09/14] ARM: Return correct result for float-to-integer conversion of NaN, Peter Maydell, 2010/12/07
- Re: [Qemu-devel] [PATCH 00/14] [PULL] ARM fixes, v2, Peter Maydell, 2010/12/07