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Introduction to compiler interpreter
- 1. Compiler ,Interpreter andLinker By- Mrs Pooja Anurag Chouhan
- 2. Introduction • Role ofcompiler • Role of interpreter • compiling and linking
- 3. Role of compiler •A computer program which reads source code and outputs assembly code or executable code is called compiler. • A program that translates software written in source code into instructions that a computer can understand Software used to translate the text that a programmer writes into a format the CPU can use. • A piece of software that takes third-generation language code and translates it into a specific assembly code. Compilers can be quite complicated pieces of software.
- 4. Role of interpreter •It translates a program line-by-line (statement-by-statement) and carries out the specified actions in sequence. In contrast, an assembler or compiler completely translates a program written in a high-level language (the source program) into a machine-language program (the object program) for later execution. Whereas a compiled-program executes much faster than an interpreted- program, an interpreter allows examination and modification of the program while it is running (executing).
- 5. Pre-processing phase • AC pre-processor is a program that accepts C code with pre- processing statements and produces a pure form of C code that contains no pre-processing statements (like #include).
- 6. Compilation • The Ccompiler accepts a preprocessed output file from the preprocessor and produces a special file called an object file. Object file contains machine code generated from the program
- 7. Linking phase • Thelink phase is implemented by the linker. The linker is a process that accepts as input object files and libraries to produce the final executable program.
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