LG mini C compiler

Description:

Project of IUT compiler course in 3 phase for C.
The project of the IUT compiler course in 3 phases for C.
Note: There are videos from test cases of phase3(final phase) here
It's a simplified C compiler that checks syntax, semantic and finally generates assembly codes.
This project has been done in two-person(@elnazrahmati and me) teams.

Requirements:

• Linux (I used Ubuntu)
• flex
• bison
• C and CPP compiler(I used gcc and g++)

  Phase 1:

  Check the syntax of the C codes with flex.

  flex -o myapp.c phase1.lex
  gcc myapp.c
  ./a.out 
  

  Phase 2:

  In this phase, we change the flex file of phase1 to return tokens instead of printing them.
  They gave us a grammar with lots of conflicts so we have to handle these conflicts and make a grammar without conflict.
  The goal of this phase is to print the parse tree of the input and check semantic whether there is an error or not.

  bison -d bison_code.y -o app.cpp
  flex -o app_lex.cpp flex_code.l
  g++ app.cpp app_lex.cpp 
  

  for printing the parse tree by token value run:

  ./a.out test.txt 0
  

  for printing the parse tree by token name run:

  ./a.out test.txt 1
  

  Phase 3:

  In this phase, we change the bison file of phase2 to generate assembly code from c code. We use the MIPS assembly.
  The goal of this phase is to generate the assembly code of the input and check whether there is an error or not.

  bison -d bison_code.y -o app.cpp
  flex -o app_lex.cpp flex_code.l
  g++ app.cpp app_lex.cpp 
  ./a.out test.txt 0
  

  Resources:

  TA videos
  https://minnie.tuhs.org/CompArch/Resources/mips_quick_tutorial.html
  http://www.mrc.uidaho.edu/mrc/people/jff/digital/MIPSir.html