/**
 * The SymbolTable allows symbol to address and address to symbol
 * lookups. It is currently used by the Assembler/Program/Processor
 * to hold label/line pairs
 */
public interface SymbolTable {
	/**
	 * Adds a new pair
	 */
	void add(String symbol, int address);
	/**
	 * Return one label for a given address
	 */
	String resolveSymbol(int address);
	/**
	 * Returns all labels for a given address
	 */
	String[] resolveSymbols(int address);
	/**
	 * Returns an address for the given symbol
	 */
	int resolveAddress(String label);
	/**
	 * Returns a string version of the table
	 */
	String toString();
}