Re: [Qemu-devel] [PATCH v1 03/19] include/fpu/softfloat: implement float16_chs helper

[Richard Henderson]

On 12/11/2017 04:56 AM, Alex Bennée wrote:
> Signed-off-by: Alex Bennée 
> ---
>  include/fpu/softfloat.h | 9 +
>  1 file changed, 9 insertions(+)

Reviewed-by: Richard Henderson 


r~

[Qemu-devel] [PATCH v1 03/19] include/fpu/softfloat: implement float16_chs helper

[Alex Bennée]

Signed-off-by: Alex Bennée 
---
 include/fpu/softfloat.h | 9 +
 1 file changed, 9 insertions(+)

diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index edf402d422..32036382c6 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -381,6 +381,15 @@ static inline float16 float16_abs(float16 a)
  */
 return make_float16(float16_val(a) & 0x7fff);
 }
+
+static inline float16 float16_chs(float16 a)
+{
+/* Note that chs does *not* handle NaN specially, nor does
+ * it flush denormal inputs to zero.
+ */
+return make_float16(float16_val(a) ^ 0x8000);
+}
+
 /*
 | The pattern for a default generated half-precision NaN.
 **/
-- 
2.15.1