Re: [Qemu-devel] [PATCH v1 02/19] include/fpu/softfloat: implement float16_abs helper
On 12/11/2017 09:56 AM, Alex Bennée wrote: > This will be required when expanding the MINMAX() macro for 16 > bit/half-precision operations. > > Signed-off-by: Alex Bennée> Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé > --- > include/fpu/softfloat.h | 7 +++ > 1 file changed, 7 insertions(+) > > diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h > index d5e99667b6..edf402d422 100644 > --- a/include/fpu/softfloat.h > +++ b/include/fpu/softfloat.h > @@ -374,6 +374,13 @@ 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. > > **/ >
[Qemu-devel] [PATCH v1 02/19] include/fpu/softfloat: implement float16_abs helper
This will be required when expanding the MINMAX() macro for 16 bit/half-precision operations. Signed-off-by: Alex BennéeReviewed-by: Richard Henderson --- include/fpu/softfloat.h | 7 +++ 1 file changed, 7 insertions(+) diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h index d5e99667b6..edf402d422 100644 --- a/include/fpu/softfloat.h +++ b/include/fpu/softfloat.h @@ -374,6 +374,13 @@ 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