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Many useful commands involve arithmetic expressions. The syntax for
expressions in the command language is identical to that of C
expressions, with the following features:
-
All expressions evaluated as integers and
are of "long" or "unsigned long" type.
-
All constants are integers.
-
All of the C arithmetic operators are provided.
-
You may reference, define, and create global variables.
-
You may call special purpose built-in functions.
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