[BUG] Running the boot code using qemu hangs PC

[hbina]

Describe the bug
Running the boot code hangs my PC.

To Reproduce

1. Copy the code from https://github.com/0xAX/linux-insides/blob/54f9314a5677c29a42eb0a304321a48361da3e24/Booting/linux-bootstrap-1.md
2. Compile and run using nasm -f bin boot.nasm && qemu-system-x86_64 boot.
3. Computer hangs

Expected behavior
It runs and shouldn't hang my PC.

Additional context

hbina@akarin:~$ screenfetch -n
 hbina@akarin
 OS: Ubuntu 20.04 focal
 Kernel: x86_64 Linux 5.15.0-46-generic
 Uptime: 7m
 Packages: 2076
 Shell: bash 5.0.17
 Resolution: 1920x1080
 DE: GNOME 3.36.5
 WM: Mutter
 WM Theme: Adwaita
 GTK Theme: Yaru [GTK2/3]
 Icon Theme: Yaru
 Font: Ubuntu 11
 Disk: 104G / 453G (25%)
 CPU: AMD Ryzen 7 4800U with Radeon Graphics @ 16x 1.8GHz
 GPU: AMD/ATI
 RAM: 2834MiB / 31518MiB
hbina@akarin:~$ qemu-system-x86_64 --version
QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.23)
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
hbina@akarin:~$ nasm --version
NASM version 2.14.02

[luohuang]

这是来自QQ邮箱的自动回复邮件。   您好，您的邮件我已经收到。   谢谢！

[bnjmnjrk]

Try adding [org 0x7c00] as the second line

[luohuang]

这是来自QQ邮箱的自动回复邮件。   您好，您的邮件我已经收到。   谢谢！