private void operateStoreInstruction(Instruction ins,
int variableIndexToSymbolTable) {
int indexToSymbolTable = variableIndexToSymbolTable;
Expression rhs = evalMachine.pop();
Variable lhs = new Variable(varTable, rhs.getType(), indexToSymbolTable,
ins.currentPc);
statements.append(new CompleteLine(ins, new Assignment(lhs, rhs)));
// Hint to the symbol table about the type.
varTable.recordLocalDatatypeReference(variableIndexToSymbolTable, rhs