public boolean isAddress() {
		int type = AddressSpace.ID_TYPE_MASK & spaceID;
		return type == AddressSpace.TYPE_RAM;
	}
@return true if this varnode exists in a Memory space (vs. register etc...).
Keep in mind this varnode may also correspond to a defined register 
if true is returned and {@link #isRegister()} return false.  
Memory-based registers may be indirectly addressed which leads to the 
distinction with registers within the register space.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/Varnode.java