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List: qemu-devel
Subject: [Qemu-devel] [PATCH 2/2] softfloat: Implement uint64_to_float128
From: Richard Henderson <rth () twiddle ! net>
Date: 2012-12-31 18:09:04
Message-ID: 1356977344-3679-3-git-send-email-rth () twiddle ! net
[Download RAW message or body]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
fpu/softfloat.c | 8 ++++++++
include/fpu/softfloat.h | 3 +++
2 files changed, 11 insertions(+)
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 20b05d4..ac3d150 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -1339,6 +1339,14 @@ float128 int64_to_float128( int64 a STATUS_PARAM )
}
+float128 uint64_to_float128(uint64 a STATUS_PARAM)
+{
+ if (a == 0) {
+ return float128_zero;
+ }
+ return normalizeRoundAndPackFloat128(0, 0x406E, a, 0 STATUS_VAR);
+}
+
/*----------------------------------------------------------------------------
| Returns the result of converting the single-precision floating-point value
| `a' to the 32-bit two's complement integer format. The conversion is
diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index 0946f07..f3927e2 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -237,6 +237,7 @@ float64 int64_to_float64( int64 STATUS_PARAM );
float64 uint64_to_float64( uint64 STATUS_PARAM );
floatx80 int64_to_floatx80( int64 STATUS_PARAM );
float128 int64_to_float128( int64 STATUS_PARAM );
+float128 uint64_to_float128( uint64 STATUS_PARAM );
/*----------------------------------------------------------------------------
| Software half-precision conversion routines.
@@ -630,6 +631,8 @@ INLINE int float128_is_any_nan(float128 a)
((a.low != 0) || ((a.high & 0xffffffffffffLL) != 0));
}
+#define float128_zero make_float128(0, 0)
+
/*----------------------------------------------------------------------------
| The pattern for a default generated quadruple-precision NaN.
*----------------------------------------------------------------------------*/
--
1.7.11.7
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