Hello, Other posts drew my attention to this: - PARM_BOUNDARY is only used by push_value - push_value is only used by legacy_push_arguments. - legacy_push_arguments is only used when push_dummy_call isn't supplied yet: - only m68k sets PARAM_BOUNDARY - m68k sets (as of recent changes) push_dummy_call hence PARM_BOUNDARY is dead. baring comments I'll commit this in a day or so, Andrew