On 27 June 2015 at 03:25, Peter Crosthwaite
wrote:
> On Mon, Jun 15, 2015 at 11:49 AM, Peter Maydell
> wrote:
>> Currently we use DISAS_WFE for both WFE and YIELD instructions.
>> This is functionally correct because at the moment both of them
>> are implemented as "yield this CPU back to the top
On Mon, Jun 15, 2015 at 11:49 AM, Peter Maydell
wrote:
> Currently we use DISAS_WFE for both WFE and YIELD instructions.
> This is functionally correct because at the moment both of them
> are implemented as "yield this CPU back to the top level loop so
> another CPU has a chance to run". However
Am 15.06.2015 um 20:49 schrieb Peter Maydell:
> diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
> index 7fa32c4..5f06ca0 100644
> --- a/target-arm/op_helper.c
> +++ b/target-arm/op_helper.c
> @@ -334,6 +334,18 @@ void HELPER(wfe)(CPUARMState *env)
> cpu_loop_exit(cs);
> }
>
> +
Currently we use DISAS_WFE for both WFE and YIELD instructions.
This is functionally correct because at the moment both of them
are implemented as "yield this CPU back to the top level loop so
another CPU has a chance to run". However it's rather confusing
that YIELD ends up calling HELPER(wfe), an
