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| author | Richard Henderson | 2012-12-31 19:09:04 +0100 |
|---|---|---|
| committer | Blue Swirl | 2013-01-05 11:12:50 +0100 |
| commit | 1e397eadf1cf54920c45a2fdc204b1ade1b72d38 (patch) | |
| tree | 64a04fcc3350e386818ffafec33e621a1923e07a | |
| parent | softfloat: Fix uint64_to_float64 (diff) | |
| download | qemu-1e397eadf1cf54920c45a2fdc204b1ade1b72d38.tar.gz qemu-1e397eadf1cf54920c45a2fdc204b1ade1b72d38.tar.xz qemu-1e397eadf1cf54920c45a2fdc204b1ade1b72d38.zip | |
softfloat: Implement uint64_to_float128
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
| -rw-r--r-- | fpu/softfloat.c | 8 | ||||
| -rw-r--r-- | include/fpu/softfloat.h | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 20b05d4392..ac3d150015 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 0946f0739d..f3927e2419 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. *----------------------------------------------------------------------------*/ |