cib VS v86

[2]: https://tbfleming.github.io/cib/

Here are some more ports of LLVM and clang to the browser:

* https://github.com/kripken/llvm-js

* https://github.com/tbfleming/cib

* https://github.com/jprendes/emception

LLVM just does pure computation, really, so it's not hard to port to wasm - much simple than say Python (which has also been ported several times). The only challenges with LLVM are the build system (which has self-execution), working around some issues like clang wanting to open a subprocess, and adding some ifdefs.

That is half of what I would need for a project, the other half being Clang itself running in the browser (to use for teaching), in theory there is [1] since many years, but in practice it never worked for me (even now I get "Runtime error: memory access out of bounds")

[1] https://tbfleming.github.io/cib/

It seems that there's a project doing exactly that: https://github.com/tbfleming/cib

It takes some work (mostly due to LLVM building code to run later in its build system as it goes), but it's very feasible. LLVM has been ported to Wasm (and before that to JS) many times, for example:

https://github.com/jprendes/emception (2021)

https://github.com/tbfleming/cib (2017)

https://github.com/kripken/llvm.js (2012)

I agree it would be great to see this repl running 100% in the browser!

> As a thought experiment, we're almost there! We could technically have `win95.img + bochs86vm.wasm + autorun.inf + msword.exe` wrapped in a "browser evaluator"

I looked into this and... holy crap! We are there. Not for modern programs quite yet, sure, but this is amazing. You can use Windows 2000 from your browser.

https://copy.sh/v86/?profile=windows2000

I think you are looking for Shadow.

https://shadow.goose.icu

Or just the whole kitchen sink. Why not?

http://copy.sh/v86/?profile=windows98

Also: https://github.com/copy/v86 - more productized browser x86 runtime, used by eg https://github.com/snaplet/postgres-wasm

Wonder if you could put all those databases in a Linux image and boot it using v86 [0], eliminating the need for a server.

[0] https://github.com/copy/v86

Trying it out in https://copy.sh/v86/?profile=kolibrios , it's also clearly a love letter to Windows 95 in particular. That could be an unstated goal here, create a very particular PC experience under very particular constraints. I don't know anything about the creator but it's very possible that this kind of work was actually their career in the 90s.

It's incredible how much work was done. Maybe this should be an internet curiosity like how TempleOS has become, though Terry's personality was a unique factor.

hmm, why would people still use VMWare? Isn't vbox open source, or even things such as https://copy.sh/v86/ would do most virtualization trick now days?

Oh, there are more OSes one can use at the parent page:

https://copy.sh/v86/

My highlights:

- First version of Windows (1.01)

- SerenityOS <3

- and even ReactOS