Symbols greatly reduce programming effort and errors. You can define symbols to represent storage addresses, displacements, constants, registers, and almost any element that makes up the assembler language. These elements include operands, operand subfields, terms, and expressions. Symbols are easier to remember and code than numbers; moreover, they are listed in a symbol cross reference table, which is printed in the program listings. Thus, you can easily find a symbol when searching for an error in your code. See topic Symbols for details about symbols, and how you can use them in your program.