public void addOperand(OperandSymbol sym) {
		String operstring = "\n" + ((char) ('A' + operands.size())); // Indicater
		// character
		// for
		// operand
		// Encode index of operand
		operands.push_back(sym);
		printpiece.push_back(operstring); // Placeholder for operand's string
	}
Return the source file index
@return index
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/slghsymbol/Constructor.java