#Commands and Variables-------------------------------------------------
as = avr-as -mmcu=avr5
ld = avr-ld
objs = main.o vectab.o usart.o timer2.o

#Settings---------------------------------------------------------------
.SILENT	:

#Operations-------------------------------------------------------------
.PHONY	: all
all		: prog.hex clean

#generating HEX---------------------------------------------------------
prog.hex: prog.o
	avr-objcopy prog.o -O ihex prog.hex
	echo Build complete!

#linking Objects--------------------------------------------------------
prog.o 	: $(objs) 
	$(ld) $(objs) -o prog.o -T linker.ld

#assembling files-------------------------------------------------------
main.o	: main.s 
	$(as) main.s -o main.o
vectab.o: vectab.s
	$(as) vectab.s -o vectab.o
usart.o : usart.s
	$(as) usart.s -o usart.o
timer2.o: timer2.s
	$(as) timer2.s -o timer2.o

#clear directory--------------------------------------------------------
.PHONY	: clean
clean	:
	rm $(objs)