syntax fix + assembly calculate a^b

src/Makefile

@@ -1,6 +1,13 @@
 LDFLAGS="-L/usr/local/opt/flex/lib"
 
-machine.py: ram
+a_pow_b: ram
+	./ram < a_pow_b.1
+	echo "### machine.py ###"
+	cat machine.py
+	echo "### execution ###"
+	python machine.py
+
+test: ram
 	./ram < test.1
 	echo "### machine.py ###"
 	cat machine.py