@Override
	public boolean hasValue(Register register) {
		return context.getValue(register, addr, true) != null;
	}
@see ghidra.program.model.lang.ProcessorContext#hasValue(ghidra.program.model.lang.Register)
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/ProgramProcessorContext.java