On Thu, Jun 28, 2018 at 08:22:38AM -0700, Richard Henderson wrote:
> On 06/27/2018 08:49 PM, David Gibson wrote:
> >> +/* High part of 128-bit helper return. */
> >> +uint64_t retxh;
> >> +
> >
> > Adding a temporary here is kind of gross. I guess the helper
> > interface doesn't allow f
On 06/27/2018 08:49 PM, David Gibson wrote:
>> +/* High part of 128-bit helper return. */
>> +uint64_t retxh;
>> +
>
> Adding a temporary here is kind of gross. I guess the helper
> interface doesn't allow for 128-bit returns, but couldn't you pass a
> register number into the helper and
On Tue, Jun 26, 2018 at 09:19:10AM -0700, Richard Henderson wrote:
> Section 1.4 of the Power ISA v3.0B states that both of these
> instructions are single-copy atomic. As we cannot (yet) issue
> 128-bit loads within TCG, use the generic helpers provided.
>
> Since TCG cannot (yet) return a 128-b
Section 1.4 of the Power ISA v3.0B states that both of these
instructions are single-copy atomic. As we cannot (yet) issue
128-bit loads within TCG, use the generic helpers provided.
Since TCG cannot (yet) return a 128-bit value, add a slot within
CPUPPCState for returning the high half of a 128-
