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AARM User's Guide
AARM Introduction Assembling Programs Operators Control Statements 
Macro Processor Standard Macro Processor 
Standard Macro Controls Defining Standard Macros Calling Standard Macros Local Symbols Exiting A Macro Built-in Macros REPT IRP IRPC Standard Macro Operators NUL Operator & Operator % Operator ;; Operator ! Operator C Preprocessor Exceptions Side-Effects Predefined Macros Examples Error MessagesPredefined Macros
The AARM Assembler provides the following predefined constants you may use in preprocessor directives and assembler code to create portable programs.
| Constant | Description |
|---|---|
| __AA__ | Version number of the assembler (for example, 102 for version 1.02). |
| __DATE__ | Date when the assembly was started in ANSI format (month dd yyyy). |
| __FILE__ | Name of the file being assembled. |
| __KEIL__ | Set to 1 to indicate the KEIL AARM Assembler. |
| __LINE__ | Current line number in the file being assembled. |
| __TIME__ | Time when the assembly was started. |
Note
- There are two (2) leading and trailing underscore characters ('_') used for the predefined constants.
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