Mobius – writing your own .NET runtime running on .NET Core

on YouTube ↗58m

" summary

A .NET runtime implemented in C# runs on top of .NET Core/5 as a vertical proof‑of‑concept that actually executes IL by emitting native code; it uses threaded-code JIT rather than a full optimizer, reads metadata with PENet, assembles instructions via the Iced library, and bridges native/managed calls with function‑pointer tricks like GetFunctionPointerForDelegate. The runtime is single‑threaded, plugin‑friendly for GC and JIT experiments, currently slow compared with production runtimes but fast enough for debugging, learning, and prototyping.

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" chapters (15)

1. 0:00Intro
2. 0:33About me
3. 3:02What is .NET...?
4. 6:36What is .NET runtime aka Virtual Execution System (VES)?
5. 9:23NET runtime & C++
6. 15:35NET runtime & no-C++
7. 22:24Design fundamentals - what to share
8. 29:12Design fundamentals - JIT or interpret
9. 30:23Design fundamentals - interpreted
10. 32:21Design fundamentals - real JIT
11. 33:22Design fundamentals - Threaded code
12. 38:19Design - the metadata
13. 39:12Design - the JIT
14. 53:42When...?
15. 57:03Materials

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