Numeric constants are 32-bit integers. You can set them using unsigned numbers in the range 0 to 2 ³² – 1, or signed numbers in the range –2³¹ to 2³¹ – 1. However, the assembler makes no distinction between –n and 2³² – n. Relational operators such as >= use the unsigned interpretation. This means that 0 > –1 is {FALSE}.

Use the EQU directive to define constants (see EQU). You cannot change the value of a numeric constant after you define it.

See also Numeric expressions and Numeric literals.