SaM Reference Table

(CORE/REFERENCETABLE.JAVA, CORE/SAMREFERENCETABLE.JAVA)

Introduced in SaM 2.4, the reference table maps symbols to places in the program where they are used. This sets the stage for future work on dynamic linking, where reference resolution is performed at linking time. Currently the reference table is used only during assembly.

The reference table provides the following methods:

• void add(String symbol, int ref_address) - add a reference to Symbol at the specified address
• void deleteSymbol(String symbol) - delete all references to the given symbol
• Collection<Integer> getReferences(String symbol) - return a collection of references for this symbol
• int size() - return the number of symbols in the reference table
• String toString() - return a string representation of this table