4.3: Defining Constants
- Page ID
- 19878
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Constants are defined with equ. The general format is:
<name> equ <value>
The value of a constant cannot be changed during program execution.
The constants are substituted for their defined values during the assembly process. As such, a constant is not assigned a memory location. This makes the constant more flexible since it is not assigned a specific type/size (byte, word, double-word, etc.). The values are subject to the range limitations of the intended use. For example, the following constant,
SIZE equ 10000
could be used as a word or a double-word, but not a byte.