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CHAPTER 1 GENERAL

User’s Manual U15556EJ1V0UM

C is characterized by its ease of understanding by human beings. However, understanding of languages by the

microcontroller cannot be extended up to a program written in C. Therefore, to have the computer understand the C

language program, another program is required to translate C language statements into the corresponding machine

language instructions. A program that translates the C language into machine language is called a C compiler.

This C compiler accepts C source modules as inputs and generates object modules or assembler source modules

as outputs. Therefore, the programmer can write a program in C and if he or she wishes to instruct the computer up

to details of program execution, the C source program can be modified in assembly language. The flow of translation

by this C compiler is illustrated in Figure 1-1.

Figure 1-1. Flow of Compilation

Program written

in C language

(C source module file)

Translation program

(Compiler)

Program coded in a set

of binary numbers

(Object module file)

Translation program

(Assembler)

Program coded in a set

of binary numbers

(Object module file)

(Assembler source

module file)

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