On 8/27/08, Vince Weaver <vince@csl.cornell.edu> wrote:
> On Wed, 27 Aug 2008, Blue Swirl wrote:
>
> >
> > How is that possible, because V9 class CPUs do not have "wim"?
> >
>
>  I am running v8plus binaries, which are a horrible mix of v8 and v9 code.
>
>  But you are right, "wim" was deleted for v9.  The reason I did the code the
> way I did was because the restore_window() function was updating the
> register (even on sparc64).
>
>  So I guess the real fix is to implement proper save_window() and
> restore_window(), and also flush_window().  Then make sure that "ta 3" on v9
> calls the proper flush_window() code.
>
>  As a temporary workaround though the patch I posted seems to work.

With this patch I get the sequence AA to MM and then back to AA.
Strangely Sparc32 prints AA to MM and then back to BB, never reaches
AA.