fixed some rules + Makefile

src/Makefile

@@ -0,0 +1,22 @@
+LDFLAGS="-L/usr/local/opt/flex/lib"
+
+machine.py: ram
+	./ram < test.1
+	cat machine.py
+
+ram: ram.yy.c ram.tab.c
+	gcc -o $@ $^ -ly -lfl
+
+ram.tab.c: ram.y
+	bison -d --report=all $^
+
+ram.yy.c: ram.l
+	flex -o $@ $^
+
+clean:
+	rm -f machine.py
+	rm -f ram
+	rm -f *.o
+	rm -f *.output
+	rm -f *.tab.c *.tab.h
+	rm -f *.yy.c