On 07/23/2021 01:12 PM, Richard Henderson wrote:
>> +static bool trans_asrtle_d(DisasContext *ctx, arg_asrtle_d * a)
>> +{
>> + TCGv t0, t1;
>> +
>> + t0 = get_gpr(a->rj);
>> + t1 = get_gpr(a->rk);
>> +
>> + gen_helper_asrtle_d(cpu_env, t0, t1);
>> +
>> + return true;
>> +}
>> +
>> +static bool trans_asrtgt_d(DisasContext *ctx, arg_asrtgt_d * a)
>> +{
>> + TCGv t0, t1;
>> +
>> + t0 = get_gpr(a->rj);
>> + t1 = get_gpr(a->rk);
>> +
>> + gen_helper_asrtgt_d(cpu_env, t0, t1);
>> +
>> + return true;
>> +}
>
> I'm not sure why both of these instructions are in the ISA, since
>
> ASRTLE X,Y <-> ASRTGT Y,X
>
> but we certainly don't need two different helpers.
> Just swap the arguments for one of them.
Hi, Richard.
I find 'ASRTLE X,Y <-> ASRTGT Y,X ' is not right,
ASRTLE X, Y is X <= Y, raise a exception.
ASRTGT Y, X is X < Y, raise a exception, lose X=Y.
Thanks
Song Gao
