Numeric constants
You can define 32-bit numeric constants using the EQU assembler directive.
Numeric constants are 32-bit integers in A32 and T32 code. You can set
them using unsigned numbers in the range 0 to 232-1, or signed
numbers in the range -231 to 231 -1.
However, the assembler makes no distinction between -n
and 232-n.
In A64 code, numeric constants are 64-bit integers. You can set them
using unsigned numbers in the range 0 to 264-1, or signed
numbers in the range -263 to 263-1.
However, the assembler makes no distinction between -n
and 264-n.
Relational operators such as >= use the unsigned interpretation. This
means that 0 > -1 is {FALSE}.
Use the EQU directive to define constants.
You cannot change the value of a numeric constant after you define
it. You can construct expressions by combining numeric constants
and binary operators.