Re: [Qemu-devel] [PATCH v1 05/19] include/fpu/softfloat: add some float16 contants

[Alex Bennée]

Alex Bennée <address@hidden> writes:

> This defines the same set of common constants for float 16 as defined
> for 32 and 64 bit floats. These are often used by target helper
> functions.
>
> Signed-off-by: Alex Bennée <address@hidden>
> ---
>  include/fpu/softfloat.h | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
> index 17dfe60dbd..5a9258c57c 100644
> --- a/include/fpu/softfloat.h
> +++ b/include/fpu/softfloat.h
> @@ -395,6 +395,13 @@ static inline float16 float16_set_sign(float16 a, int 
> sign)
>      return make_float16((float16_val(a) & 0x7fff) | (sign << 15));
>  }
>
> +#define float16_zero make_float16(0)
> +#define float16_one make_float16(0x3a00)
> +#define float16_ln2 make_float16(0x34d1)
> +#define float16_pi make_float16(0x4448)
> +#define float16_half make_float16(0x3800)
> +#define float16_infinity make_float16(0x7a00)

And:
#define float16_infinity make_float16(0x7c00)


> +
>  
> /*----------------------------------------------------------------------------
>  | The pattern for a default generated half-precision NaN.
>  
> *----------------------------------------------------------------------------*/


--
Alex Bennée