Smallc Compiler
======================================================

The directory contain the following files:

 Makefile
 README
 def.h						include headers, util def
 utils.cpp					implementations of utils functions
 smallc.y					bison file
 smallc.l					flex file
 ast.h/cpp				    abstract syntax tree classes
 symtab.h					symbol table definition
 semant.h/semant.cpp		utils for semantic analysis, implementations of semant check of ast classes
 ast_emit.cpp				implementations of emit method for ast classes (IR generation)
 tac.h/cpp					Three Address Code classes implementation
 IRgen.h/cpp				IR generator class implementation
 mips.h/cpp					final code generator(mips) implementation



Instructions (Ubuntu/Debian)
------------

	To compile, type:

	% make

	This produces an executable named "scc"

	To compile a smallc file

	% ./scc input.sc output.asm

	output.asm contains generated mips file

	To generate Three address code, add a "-tac" option at the end.
	% ./scc input.sc output.tac -tac

	Use spim to run asm file

	% /Path/to/spim -file output.asm



    Happy New Year!

    Kangwei Ling
    5140219295
    kevinling@sjtu.edu.cn