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softfloat: Add 16 bit integer to float conversions

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Add the float to 16 bit integer conversion routines. These can be
trivially implemented in terms of the int32_to_float* routines, but
providing them makes our API more symmetrical and can simplify callers.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Peter Maydell 2014-01-07 17:17:49 +00:00
parent f581bf5474
commit 8afbdabac2
1 changed files with 21 additions and 0 deletions
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21
include/fpu/softfloat.h
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@ -239,6 +239,27 @@ floatx80 int64_to_floatx80( int64 STATUS_PARAM );
float128 int64_to_float128( int64 STATUS_PARAM );
float128 uint64_to_float128( uint64 STATUS_PARAM );
/* We provide the int16 versions for symmetry of API with float-to-int */
INLINE float32 int16_to_float32(int16_t v STATUS_PARAM)
{
return int32_to_float32(v STATUS_VAR);
}
INLINE float32 uint16_to_float32(uint16_t v STATUS_PARAM)
{
return uint32_to_float32(v STATUS_VAR);
}
INLINE float64 int16_to_float64(int16_t v STATUS_PARAM)
{
return int32_to_float64(v STATUS_VAR);
}
INLINE float64 uint16_to_float64(uint16_t v STATUS_PARAM)
{
return uint32_to_float64(v STATUS_VAR);
}
/*----------------------------------------------------------------------------
| Software half-precision conversion routines.
*----------------------------------------------------------------------------*/