Identifiers are used as the names of variables, functions and data types.
The allowable symbols are: digits from 0 to 9, the Latin lower and upper case letters a - z, A - Z and the underscore symbol (_).
A special case is accessing the names built in <%CM%>, for example, a special function register. Such names are preceded by the dollar mark, for example, $SP, and can be used in the program while not being declared. Identifiers shall comply with the following rules:
The first symbol can not be a digit.
The upper and lower case letters are discriminated.
An identifier can consist of up to 48 symbols.
Examples:
NAME1 name1 Total_5
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