CC78K4 Datasheet, PDF (158/523 Pages) NEC – CC78K4 Ver.2.30 or Later, C Compiler Language

CHAPTER 10 LIBRARY FUNCTIONS
C has no instructions to transfer (input or output) data to and from external sources (peripheral devices and
equipment). This is because of the C language designer's intent to hold the functions of C to a minimum. However,
for actually developing a system, I/O operations are requisite. Thus, C is provided with library functions to perform
I/O operations.
This C compiler is provided with library functions such as I/O, character/memory manipulation, program control,
and mathematical functions. This chapter describes the library functions provided in this compiler.
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User’s Manual U15556EJ1V0UM