Re: [Qemu-arm] [PATCH v1 5/9] target-arm/translate-a64.c: Use extract32 in disas_ldst_reg_imm9

[Sergey Fedorov]

On 12.02.2016 17:33, Edgar E. Iglesias wrote:
> From: "Edgar E. Iglesias" <address@hidden>
>
> Use extract32 instead of open coding the bit masking when decoding
> is_signed and is_extended. This streamlines the decoding with some
> of the other ldst variants.
>
> No functional change.
>
> Signed-off-by: Edgar E. Iglesias <address@hidden>

Reviewed-by: Sergey Fedorov <address@hidden>

> ---
>  target-arm/translate-a64.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
> index 7f65aea..bf31f8a 100644
> --- a/target-arm/translate-a64.c
> +++ b/target-arm/translate-a64.c
> @@ -2117,8 +2117,8 @@ static void disas_ldst_reg_imm9(DisasContext *s, 
> uint32_t insn)
>              return;
>          }
>          is_store = (opc == 0);
> -        is_signed = opc & (1<<1);
> -        is_extended = (size < 3) && (opc & 1);
> +        is_signed = extract32(opc, 1, 1);
> +        is_extended = (size < 3) && extract32(opc, 0, 1);
>      }
>  
>      switch (idx) {