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RealView Assembler User's Guide
Preface Introduction Writing ARM Assembly Language Assembler Reference Command syntax
Obtaining a list of available options Specifying command‑line options with an environm AAPCS Floating‑point model Memory access attributes Pre‑executing a SET directive Splitting long LDMs and STMs Listing output to a file Project template options Controlling the output of diagnostic messages Controlling exception table generation Format of source lines Predefined register and coprocessor names Predeclared register names Predeclared extension register names Predeclared coprocessor names Built‑in variables and constants Symbols Symbol naming rules Variables Numeric constants Assembly time substitution of variables Labels Local labels Expressions, literals, and operators String expressions String literals Numeric expressions Numeric literals Floating‑point literals Register‑relative and program‑relative express Logical expressions Logical literals Operator precedence Unary operators Binary operators Diagnostic messages Interlocks IT block generation Thumb branch target alignment Using the C preprocessor ARM and Thumb Instructions Directives ReferenceNumeric constants
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| Home > Assembler Reference > Symbols > Numeric constants | |||
Numeric constants are 32‑bit integers. You can set them using unsigned numbers in the range 0 to 232–1, or signed numbers in the range –231 to 23 –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.
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