Implement Operating System from scratch
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実装するもの
目標
- シェルの基本機能を実装できるようなOSを一から実装する ( fork / exec / wait / pipe など )
- マルチプロセッサ対応は考慮せず
- できれば、tcp/ip、http通信などを実装したい
実装するもの
- Boot Loader
- カーネル/ユーザーモードの分離
- ページテーブル（アドレス変換はアーキテクチャ側で仕様が決まっている）
- マルチタスキング
- タイマーによるタスク切り替えを実現
- wakeup と sleep
- 入出力管理、デバイスドライバ
- ELF形式ファイルの実行
- IPC（パイプ）
- システムコールインターフェース
環境
- CPUアーキテクチャ: RISC-V
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