Compiler Design

Cousins of compiler

1. Preprocessor
2. Assembler
3. Linker/Loader

PHASES OF COMPILER DESIGN

• LEXICAL PHASE 
• SYNTAX PHASE 
• SEMANTIC PHASE
• INTERMEDIATE CODE GENERATOR
• OPTIMISED CODE GENERATOR
• TARGET CODE GENERATOR

RED COLOUR - FRONT END PHASE
BLUE COLOR - BACK END PHASE

LEXICAL ANALYSIS: valid tokens separation(lexeme) made(by removing white spaces from source program)
SYNTAX ANALYSIS: generating parse tree, symbol tree(parameter: position, type, constant/variable)
INTERMEDIATE CODE GENERATOR: creating temporary variable
OPTIMISED CODE GENERATOR: optimizing intermediate code
TARGET CODE GENERATOR: converting to assembly code