@Override
	public void setDefaultValue(RegisterValue registerValue, Address start, Address end) {
		Register baseRegister = registerValue.getRegister().getBaseRegister();
		RegisterValueStore store = defaultRegisterValueMap.get(baseRegister);
		if (store == null) {
			RangeMapAdapter adapter = new InMemoryRangeMapAdapter();
			store = new RegisterValueStore(registerValue.getRegister().getBaseRegister(), adapter,
				false);
			defaultRegisterValueMap.put(baseRegister, store);
		}
		store.setValue(start, end, registerValue);
	}
Constructs a new ProgramContextDB object
@param dbHandle the handle to the database.
@param errHandler the error handler
@param language the processor language
@param addrMap the address map.
@param lock the program synchronization lock
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/register/OldProgramContextDB.java