@Override
	public AddrSpace getDefaultSpace() {
		return defaultspace;
	}
Most processors have a main address bus, on which the bulk
of the processor's RAM is mapped.  Everything referenced
with this address bus should be modeled in pcode with a
single address space, referred to as the default space.
@return a pointer to the default space
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/translate/Translate.java