On Fri, 2015-10-02 at 17:47 +1000, Michael Ellerman wrote:
> On Fri, 2015-25-09 at 04:01:40 UTC, Michael Neuling wrote:
> > powerpc has a link register (lr) used for calling functions. We "bl
> > " to call a function, and "blr" to return back to the call
> > site.
>
>
>
On Fri, 2015-25-09 at 04:01:40 UTC, Michael Neuling wrote:
> powerpc has a link register (lr) used for calling functions. We "bl
> " to call a function, and "blr" to return back to the call site.
> For the benchmark in
powerpc has a link register (lr) used for calling functions. We "bl
" to call a function, and "blr" to return back to the call site.
The lr is only a single register, so if we call another function from
inside this function (ie. nested calls), software must save away the
lr on the software stack