Replaced batch scripts with Makefile.

Author: jmk

Makefile

@@ -0,0 +1,22 @@
+.PHONY: clean all
+
+.PRECIOUS: *.o
+
+all: example1.nes example2.nes example3.nes example4.nes example5.nes
+
+clean:
+	@rm -fv example1.s example2.s example3.s example4.s example5.s
+	@rm -fv example1.o example2.o example3.o example4.o example5.o
+	@rm -fv example1.nes example2.nes example3.nes example4.nes example5.nes
+	@rm -fv crt0.o
+
+crt0.o: crt0.s
+	ca65 crt0.s
+
+%.o: %.c
+	cc65 -Oi $< --add-source
+	ca65 $*.s
+	rm $*.s
+
+%.nes: %.o crt0.o
+	ld65 -C nes.cfg -o $@ crt0.o $< runtime.lib