public AddrSpace getFspecSpace() {
		return fspecspace;
	}
There is a special address space reserved for encoding pointers
to the FuncCallSpecs object as addresses. This allows direct
pointers to be hidden within an operation, when manipulating
pcode internally. (See FspecSpace)
@return a pointer to the address space
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/translate/Translate.java