add parent_pspec everywhere
format code
another batch of ready/valid i/o prefix-suffix swaps
import from openpower.endian
use openpower.test.common
more openpower-isa conversion
move over to from openpower imports
cannot pass in arguments to Core - must be done with pspec
cleanup test_non_production_core.py
test_non_production_core.py: fix hanging test
test_non_production_core.py: wire instruction decoder to core
add test case for mmu+NonProductionCore