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[v3,07/22] include/fpu/softfloat: implement float16_set_sign helper

Message ID 20180124131315.30567-8-alex.bennee@linaro.org
State New
Headers show
Series re-factor softfloat and add fp16 functions | expand

Commit Message

Alex Bennée Jan. 24, 2018, 1:13 p.m. UTC 
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/fpu/softfloat.h | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Philippe Mathieu-Daudé Jan. 24, 2018, 2:12 p.m. UTC | #1 
On 01/24/2018 10:13 AM, Alex Bennée wrote:
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> ---
>  include/fpu/softfloat.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
> index f75aa59100..59c06ef192 100644
> --- a/include/fpu/softfloat.h
> +++ b/include/fpu/softfloat.h
> @@ -281,6 +281,11 @@ static inline float16 float16_chs(float16 a)
>      return make_float16(float16_val(a) ^ 0x8000);
>  }
>  
> +static inline float16 float16_set_sign(float16 a, int sign)
> +{
> +    return make_float16((float16_val(a) & 0x7fff) | (sign << 15));
> +}
> +
>  /*----------------------------------------------------------------------------
>  | The pattern for a default generated half-precision NaN.
>  *----------------------------------------------------------------------------*/
>
Richard Henderson Jan. 24, 2018, 4:34 p.m. UTC | #2 
On 01/24/2018 05:13 AM, Alex Bennée wrote:
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
> ---
>  include/fpu/softfloat.h | 5 +++++
>  1 file changed, 5 insertions(+)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~
diff mbox series

Patch

diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index f75aa59100..59c06ef192 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -281,6 +281,11 @@  static inline float16 float16_chs(float16 a)
     return make_float16(float16_val(a) ^ 0x8000);
 }
 
+static inline float16 float16_set_sign(float16 a, int sign)
+{
+    return make_float16((float16_val(a) & 0x7fff) | (sign << 15));
+}
+
 /*----------------------------------------------------------------------------
 | The pattern for a default generated half-precision NaN.
 *----------------------------------------------------------------------------*/