features

+ done
~ functional, could be improved

category	component	status
memory management	paging	+	virtual memory support
	dynamic memory allocation	~	heap management
file system	fat16	+
input/output	keyboard	+	keyboard input handling
	serial	+	serial communication
graphics	text mode (03h)	+	80x25 text display
	vga mode (12h)	+	640x480 16-color graphics
	bdf font rendering	~	bdf font support
networking	arp protocol	+
	ip protocol	+
	dhcp	+	can get dynamic ip
	icmp protocol	+	can be pinged
	udp protocol	+
	rtl8139 driver	+	network card
system	multitasking	~

building

locally

apt install build-essential nasm qemu-system-x86 gdb clang-format tcpdump dnsmasq bridge-utils iproute2 net-tools procps mtools dosfstools

docker

# build the docker container
docker build -t os-dev .

# run the container
sudo docker run -it --privileged --cap-add=NET_ADMIN \
    -v $(pwd):/workspace \
    -p 5901:5901 \
    os-dev bash

# setup the network inside the container
chmod +x ./dhcp.sh && ./dhcp.sh

# build and run emulation
make vnc

# attach from the outside
vncviewer localhost:5901