Symbols

You can use a symbol to represent a storage location or an arbitrary value. If you write a symbol in the name field of an instruction, you can then specify this symbol in the operands of other instructions and thus refer to the former instruction symbolically. This symbol represents a relocatable address.

You can also assign an absolute value to a symbol by coding it in the name field of an EQU instruction with an operand whose value is absolute. This lets you use this symbol in instruction operands to represent: For details of these program elements, see Operand entries.
The advantages of symbolic over numeric representation are: