Re: [Qemu-devel] [PATCH V7 06/24] acpi: add aml_shiftright() term

[Shannon Zhao <zhaoshenglong@huawei.com>]

On 2015/5/25 23:33, Marcel Apfelbaum wrote:
> Add encoding for ACPI DefShiftRight Opcode.
> 
> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
> Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>

> ---
>  hw/acpi/aml-build.c         | 10 ++++++++++
>  include/hw/acpi/aml-build.h |  1 +
>  2 files changed, 11 insertions(+)
> 
> diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> index 4d45610..f3733b3 100644
> --- a/hw/acpi/aml-build.c
> +++ b/hw/acpi/aml-build.c
> @@ -474,6 +474,16 @@ Aml *aml_shiftleft(Aml *arg1, Aml *count)
>      return var;
>  }
>  
> +/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */
> +Aml *aml_shiftright(Aml *arg1, Aml *count)
> +{
> +    Aml *var = aml_opcode(0x7A /* ShiftRightOp */);
> +    aml_append(var, arg1);
> +    aml_append(var, count);
> +    build_append_byte(var->buf, 0x00); /* NullNameOp */
> +    return var;
> +}
> +
>  /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */
>  Aml *aml_lless(Aml *arg1, Aml *arg2)
>  {
> diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
> index 6391331..e1dab5a 100644
> --- a/include/hw/acpi/aml-build.h
> +++ b/include/hw/acpi/aml-build.h
> @@ -165,6 +165,7 @@ Aml *aml_store(Aml *val, Aml *target);
>  Aml *aml_and(Aml *arg1, Aml *arg2);
>  Aml *aml_or(Aml *arg1, Aml *arg2);
>  Aml *aml_shiftleft(Aml *arg1, Aml *count);
> +Aml *aml_shiftright(Aml *arg1, Aml *count);
>  Aml *aml_lless(Aml *arg1, Aml *arg2);
>  Aml *aml_add(Aml *arg1, Aml *arg2);
>  Aml *aml_index(Aml *arg1, Aml *idx);
> 

-- 
Shannon