protected Address readDataPointer(MemBuffer buffer, int bufferOffset, boolean updateReference) {
		return readPointer(buffer, bufferOffset, dataSpace, updateReference);
	}
Check for a Data pointer at the specified address and return the referenced
address.
@param addr address of stored pointer
@return pointer referenced address or null if no pointer found
Ghidra/Features/Base/src/main/java/ghidra/test/processors/support/PCodeTestAbstractControlBlock.java