public Address createConstFromSpace(AddrSpace spc) {
		long id = AddrSpaceToIdSymmetryMap.getID(spc);
		return new Address(constantspace, id);
	}
This routine is used to encode a pointer to an address space
as a constant Address, for use in LOAD and STORE
operations.  This is used internally and is slightly more
efficient than storing the formal index of the space
@param spc is the space pointer to be encoded
@return the encoded Address
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/translate/Translate.java