Makefile

all:
	mkdir -p bin
	nasm -f bin src/boot.asm -o bin/boot.bin
	nasm -f elf64 src/isr_defs.asm -o bin/isr_defs.o
	clang -g -O0 -ffreestanding -target x86_64-none-elf -c src/kernel.c -o bin/kernel.o
	clang -g -O0 -ffreestanding -target x86_64-none-elf -c src/ports.c -o bin/ports.o
	clang -g -O0 -ffreestanding -target x86_64-none-elf -c src/vga.c -o bin/vga.o
	clang -g -O0 -ffreestanding -target x86_64-none-elf -c src/idt.c -o bin/idt.o
	clang -g -O0 -ffreestanding -target x86_64-none-elf -c src/isr.c -o bin/isr.o
	clang -g -O0 -ffreestanding -target x86_64-none-elf -c src/timer.c -o bin/timer.o
	ld.lld -N -T linker.ld bin/kernel.o bin/isr_defs.o bin/ports.o bin/vga.o bin/isr.o bin/idt.o bin/timer.o -o bin/kernel.elf
	ld.lld -N -T linker.ld --oformat=binary bin/kernel.o bin/isr_defs.o bin/ports.o bin/vga.o bin/isr.o bin/idt.o bin/timer.o -o bin/kernel.bin
	cat bin/boot.bin bin/kernel.bin > bin/os_raw.bin
	dd if=/dev/zero of=bin/os.img bs=1024 count=1440
	dd if=bin/os_raw.bin of=bin/os.img conv=notrunc

run:
	qemu-system-x86_64 -drive format=raw,file=bin/os.img

clean:
	rm -rf bin