On Wed, Aug 10, 2011 at 4:26 AM, Michael Hudson-Doyle <mica...@gmail.com> wrote:
> There are already fields that behave in unusual ways -- see > > https://bitbucket.org/pypy/pypy/src/f8c92c646275/pypy/jit/backend/ppc/ppcgen/ppc_field.py#cl-55 > > I think you should be able to add your fields in this fashion -- in > fact, the IField looks a teensy bit like how the displacement field > should be already. The split encodings should be fairly easy too, > although there might be some paranoid code checking that fields don't > overlap that you need to change. Yes and no. The ds displacement field for 64 bit loads is similar to the LI field of branches. But the shift fields are not like the spr field -- the value is split between multiple fields with different bit ranges, not just permuted within the field. Thanks, David _______________________________________________ pypy-dev mailing list pypy-dev@python.org http://mail.python.org/mailman/listinfo/pypy-dev
