The CARM run-time library provides more than 100 predefined
functions and macros you may use in your ARM programs. The library
makes embedded software development easier by providing routines that
perform common programming tasks such as string and buffer
manipulation, data conversion, and floating-point math
operations.
The routines in this library conform to the ANSI C Standard.
However, some functions differ slightly in order to take advantage of
the features of the ARM architecture. Where possible, function return
types and argument types are adjusted to use the smallest data type
possible. In addition, unsigned data types are favored over signed
types. These changes to the standard library provide a maximum of
performance while reducing program size.
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