C-to-Mips-compiler

Compiler for C90 standard combined with basic python translator. This project was build as coursework and adheres to specs specified here.

This compiler was built from scratch with the help of lexing tool flex and parsing tool bison. Features implemented should be robust enough to not contain any common bugs.

This project uses variants and thus requires newer version of flex and bison !!!

Translator features

This project supports all translation features provided here

C90 features supported

• local variables
• arithmetic and logical expressions
• if-then-else statements
• loops
• functions
• arrays (only int type)
• reading and writing elements of an array
• recursive function calls
• the enum keyword
• switch statements
• the break and continue keywords
• variables of double, float, int, unsigned and pointer types
• Scopes.
• the typedef keyword (only basic ones)
• the sizeof(...) function
• taking the address of a variable using the & operator
• dereferencing a pointer-variable using the * operator
• pointer arithmetic

Build instructions

Both translator and compiler are built using: make bin/c_compiler

The translator function is invoked using the flag --translate, with the source file and output file specified on the command line:

bin/c_compiler --translate [source-file.c] -o [dest-file.py]

The compilation function is invoked using the flag -S, with the source file and output file specified on the command line:

bin/c_compiler -S [source-file.c] -o [dest-file.s]