.PHONY: all
all: a.com b.com c.com

a.com: a.asm
b.com: b.asm
c.com: c.asm

%.com: %.asm
	nasm -f bin -o $@ $<

%.img: %.asm
	nasm -f bin -DBOOTSECT -o $@ $<

.PHONY: clean
clean:
	rm -f a.com

.PHONY: boot
boot: c.img
	qemu-system-i386 -fda $<