What Order Should I Make Things In?

This is a question of style. You can start at the start and dig straight in, writing a bootsector, then a minimal kernel, and build from there. You could skip the bootsector, and use a ready-made bootloader like GRUB (it's open for discussion whether rolling your own bootloader is a valuable experience or a waste of time).

https://wiki.osdev.org/What_Order_Should_I_Make_Things_In%3F

1 对于初学者

1. 在屏幕上打印字符串和整数（十进制和十六进制）当然是必须的。这是最基本的调试方法之一，实际上我们所有人都经历过 0.01 版中的 kprint() 或 kout。

2. 输出到串口将为你节省大量调试时间。你不必担心由于滚动而丢失信息。你将能够从控制台测试你的操作系统，过滤有趣的调试消息，并自动化一些测试。

3. 拥有一个可以转储寄存器内容(也许还有错误地址)的工作可靠的中断/异常处理系统将非常有用。

4. 规划您的内存映射（虚拟和物理）：决定您希望数据的位置

5. 堆:现阶段在运行时分配内存(malloc和free)几乎是不可能的。应该尽快实现。

2 风格极端

2.1 Lino Commando

2.2 Nick Stacky

2.3 James T. Klik

2.4 Eleanore Semaphore

2.5 Alta Lang

2.6 Stan Dard

2.7 Richard Theseus

2.8 Mister Perfect

2.9 Andy Microbaum

2.10 Dizz Tracked

2.11 Mono Lizzy

2.12 Ideas for new Archetypes

• Edward Scissorhands - Sounds like something designed on paper to do everything but completely broken in practice, I see architecture astronauts rather doing vaporware (e.g. you'd never get to see the Scissorhanded implementation the architecture would require)

• Real Man - Writes an entire operating system in Assembly, preferably in real mode. Abhors Quiche Eaters and Pascal.

• Vizier Studio - Visual Studio people.

• Barry Pi - ARM people.

• Racing Carl - Does all in protected mode Assembler and rewrites the latest 3D library and tries to squeeze the last bit of speed out of the code.

2.13 Archetypes to avoid

• Cowboy Coder - Someone who eagerly jumps into coding without any plan.
• 一个在没有任何计划的情况下急切投入编码的人。

• Dae Dreamer - Someone who spends all their time day dreaming and reading about operating systems, but hasn't yet started one.
• 有人把所有的时间都花在做白日梦和阅读关于操作系统的书籍上，但是还没有开始做。

• Duct von Tape - Someone that reuses a lot of code and combines it into a horrible frankenstein of a project. Or perhaps lovecraftian?
• 重用大量代码并将其组合成可怕的项目科学怪人的人。

• Sir Dunning-Kruger - Someone overestimating his/her skills dramatically.
• 有人高估了他/她的技能。