| Message ID | 20180109122252.17670-4-alex.bennee@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | re-factor softfloat and add fp16 functions | expand |
On 9 January 2018 at 12:22, Alex Bennée <alex.bennee@linaro.org> wrote: > This will be required when expanding the MINMAX() macro for 16 > bit/half-precision operations. > > Signed-off-by: Alex Bennée <alex.bennee@linaro.org> > Reviewed-by: Richard Henderson <richard.henderson@linaro.org> > Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> > --- > include/fpu/softfloat.h | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h > index 52af1412de..cfc615008d 100644 > --- a/include/fpu/softfloat.h > +++ b/include/fpu/softfloat.h > @@ -347,6 +347,13 @@ static inline int float16_is_zero_or_denormal(float16 a) > return (float16_val(a) & 0x7c00) == 0; > } > > +static inline float16 float16_abs(float16 a) > +{ > + /* Note that abs does *not* handle NaN specially, nor does > + * it flush denormal inputs to zero. > + */ > + return make_float16(float16_val(a) & 0x7fff); > +} > /*---------------------------------------------------------------------------- > | The pattern for a default generated half-precision NaN. > *----------------------------------------------------------------------------*/ > -- > 2.15.1 Reviewed-by: Peter Maydell <peter.maydell@linaro.org> thanks -- PMM
diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h index 52af1412de..cfc615008d 100644 --- a/include/fpu/softfloat.h +++ b/include/fpu/softfloat.h @@ -347,6 +347,13 @@ static inline int float16_is_zero_or_denormal(float16 a) return (float16_val(a) & 0x7c00) == 0; } +static inline float16 float16_abs(float16 a) +{ + /* Note that abs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float16(float16_val(a) & 0x7fff); +} /*---------------------------------------------------------------------------- | The pattern for a default generated half-precision NaN. *----------------------------------------------------------------------------*/