review of ppc64 inline assembly for greenlet

[Dan Horák]

Hi all,

could someone fluent in GCC ppc64 inline assembly, please, review the
proposed fix for a FTBFS bug in the greenlet project?

The PR is https://github.com/python-greenlet/greenlet/pull/120, failing
code is
https://github.com/python-greenlet/greenlet/blob/master/platform/switch_p...
and related bug report is
https://github.com/python-greenlet/greenlet/issues/119


	Thanks in advance,

		Dan