new file:   Makefile
	new file:   cmm.h
	new file:   lexical.l
	new file:   main.c
	new file:   semantic.c
	new file:   semantic.h
	new file:   syntax.y
	new file:   syntree.c
	new file:   syntree.h
	new file:   test.cmm
Merge branch 'master' of https://github.com/GoTcWang/c---compiler