Instructs the assembler to pre-execute one of the
You must enclose
directive in quotes, for example:
armasm --predefine "VariableName SETA 20" inputfile.s
The assembler also executes a corresponding
GBLA directive to define the variable before setting its value.
The variable name is case-sensitive. The variables defined using the command line are global to the assembler source files specified on the command line.
Considerations when using --predefine
Be aware of the following:
The command-line interface of your system might require you to enter special character combinations, such as
\", to include strings in
directive. Alternatively, you can use
--via fileto include a
--predefineargument. The command-line interface does not alter arguments from
--predefineis not equivalent to the compiler option
--predefinedefines a global variable whereas
-Dnamedefines a macro that the C preprocessor expands.
Although you can use predefined global variables in combination with assembly control directives, for example
ELSEto control conditional assembly, they are not intended to provide the same functionality as the C preprocessor in the assembler. If you require this functionality, ARM recommends you use the compiler to pre-process your assembly code.