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softfloat: Implement uint64_to_float128

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2012-12-31 10:09:04 -08:00 committed by Blue Swirl
parent 17ed229379
commit 1e397eadf1
2 changed files with 11 additions and 0 deletions
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8
fpu/softfloat.c
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@ -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

3
include/fpu/softfloat.h
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@ -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.
*----------------------------------------------------------------------------*/