[v2,for-10.0,47/54] target/rx: Set default NaN pattern explicitly

Commit Message

Peter Maydell Dec. 2, 2024, 1:13 p.m. UTC

Set the default NaN pattern explicitly for rx.

Signed-off-by: Peter Maydell <[e-mail]>
---
 target/rx/cpu.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Richard Henderson Dec. 2, 2024, 5:35 p.m. UTC | #1

On 12/2/24 07:13, Peter Maydell wrote:
> Set the default NaN pattern explicitly for rx.
> 
> Signed-off-by: Peter Maydell <[e-mail]>
> ---
>   target/rx/cpu.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/target/rx/cpu.c b/target/rx/cpu.c
> index 65a74ce720f..69ec0bc7b3d 100644
> --- a/target/rx/cpu.c
> +++ b/target/rx/cpu.c
> @@ -100,6 +100,8 @@ static void rx_cpu_reset_hold(Object *obj, ResetType type)
>        * then prefer dest over source", which is float_2nan_prop_s_ab.
>        */
>       set_float_2nan_prop_rule(float_2nan_prop_x87, &env->fp_status);
> +    /* Default NaN value: sign bit clear, set frac msb */
> +    set_float_default_nan_pattern(0b01000000, &env->fp_status);
>   }
>   
>   static ObjectClass *rx_cpu_class_by_name(const char *cpu_model)

Reviewed-by: Richard Henderson <[e-mail]>

r~

Patch

diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index 65a74ce720f..69ec0bc7b3d 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -100,6 +100,8 @@  static void rx_cpu_reset_hold(Object *obj, ResetType type)
      * then prefer dest over source", which is float_2nan_prop_s_ab.
      */
     set_float_2nan_prop_rule(float_2nan_prop_x87, &env->fp_status);
+    /* Default NaN value: sign bit clear, set frac msb */
+    set_float_default_nan_pattern(0b01000000, &env->fp_status);
 }
 
 static ObjectClass *rx_cpu_class_by_name(const char *cpu_model)