Instructions

sudo apt install nasm
sudo apt install qemu-system-x86

To make bin file

nasm -f bin ./boot.asm  -o ./boot.bin 

To check contents

ndisasm ./boot.bin

To launch qemu

qemu-system-x86_64 -hda ./boot.bin

To load to usb stick

show all disks in the system

sudo fdisk -l

copy binary to the disk

sudo dd if=./boot.bin of=/dev/sdb

Make a Makefile

To read the bin file

sudo apt install bless
bless ./boot_read.bin

Global file descriptor

sudo apt install gdb
target remote | qemu-system-  -hda ./pro.bin -S -gdb stdio
c
type ctrl+C  sigint
layout asm
info register

Restructure the project Enable A20 line

To run on online emulator

$ make //to compile and make an executable $ cd bin //to switch to binary file and operate on gdb

$ target remote | qemu-system-x86_64 -hda ./boot.bin -S gdb stdio //to run onthe emulator prompt to continue appears press c $ layout asm //to view how values are stored on the memory