csdiy

🐭 计算机废物自学指北

ETH Zurich Digital Design & Computer Architecture: SystemVerilog labs building a MIPS/RISC-V processor, verified in simulation

必学堂 — 把公开课学成通关的游戏化自学工具

Solutions to Hung-yi Lee (李宏毅) Machine Learning course homeworks HW1-HW15 with measured results

Stanford CS144: a full TCP/IP stack in modern C++ (byte stream, reassembler, TCP receiver/sender, network interface, IP router)

From-scratch C++ implementations of Stanford CS110 (Principles of Computer Systems): Unix v6 filesystem, multiprocessing, stsh shell w/ job control, ThreadPool, RSS aggregator, HTTP proxy+cache, MapReduce — all verified in WSL2.

ETH Zurich Computer Architecture — simulator-based labs on caching, branch prediction, prefetching, and memory systems

UC Berkeley CS186 RookieDB (Java): B+tree indexing, joins & query optimization, locking/concurrency, and ARIES recovery

GAMES103 Physics-Based Animation (Huamin Wang): headless CPU reimplementation of all 4 labs — impulse rigid body, mass-spring cloth, FEM StVK/neo-Hookean elastic, shallow-wave fluid — real rendered GIFs + verified physics

UC Berkeley EECS/CS 126 — Probability and Random Processes: all 9 programming labs (Monte Carlo, LT fountain codes, matrix sketching, MCMC cipher-breaking, random graphs, interacting particle systems, entropy, detection, Kalman) + homework write-ups, from scratch in Python, verified against theory.

Solutions to CMU 11-785 Introduction to Deep Learning — a from-scratch autograd library (mytorch: MLP, CNN, RNN/GRU + CTC, attention) plus the Kaggle deep-learning challenges — with the official autograder passing

USTC Computer Networking (Top-Down Approach) programming labs — socket programming and protocol/Mininet labs

GAMES101 (Lingqi Yan) — all 8 assignments as CPU software renderers in C++/Eigen: rasterizer, MSAA, Blinn-Phong, Bezier, Whitted ray tracing, BVH, Cornell-box path tracing

Caltech CS122 NanoDB (Java): storage & buffer management, B+tree indexing, SQL translation, query planning/optimization, and transactions

UC Berkeley CS168 Introduction to the Internet — programming projects on reliable transport, routing, and traceroute

Full Stack Open (University of Helsinki) core parts 3-8: a running Bloglist full-stack app (Express + Mongoose + JWT REST API, React + React Query + Router SPA) and a Library GraphQL API (Apollo Server v4), 52 tests + live E2E smoke checks.

Full-stack BadgerChat for UW-Madison CS571: a JWT REST API with React (web) + React Native (Expo) clients — 79 tests

CPU-only Python/NumPy reimplementation of CMU 15-462/662 Scotty3D: software rasterizer, half-edge MeshEdit (subdivision + QEM), BVH path tracer, and skeletal animation — real renders + measured results

HIT 哈工大《操作系统》(李治军) hit-oslab labs: real Linux 0.11 kernel modifications (bootloader, syscalls, scheduler trace, semaphores, shared memory, terminal, /proc) verified under Bochs. A csdiy.wiki build.

MIT 6.007 Signals and Systems: from-scratch Python for LTI/convolution, Fourier series & transforms, sampling & aliasing, Laplace/z-transforms, filtering, modulation, and feedback — 64 pytest checks, 10 figures