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sillywalklast Monday at 12:45 AM1 replyview on HN

> At that stage it shipped with Arthur because, or so we were told, the "actual" OS was still in development.

I think this was ARX[0], which was overambitious. Arthur apparently stands for A Risc by THURsday[1]

EDIT: a detailed article[2], linked from lproven's article[3], about the history of ARX / Arthur / RiscOS.

[0] https://en.wikipedia.org/wiki/ARX_(operating_system)

[1] https://www.theregister.com/software/2022/06/23/how-risc-os-...

[2] https://www.rougol.jellybaby.net/meetings/2012/PaulFellows/

[3] https://liam-on-linux.livejournal.com/73983.html


Replies

lprovenlast Monday at 1:04 PM

Oh, thank you!

I could come back to the "modernising RISC OS" piece and update, as things are now actually happening. Although I was pessimistic for its prospects, it's becoming reality.

I know of 2 main efforts...

* Merlin, an all-new OS in Rust, aiming for a very simplified modern design and backwards compatibility.

* The RISC OS Open team is rewriting it in C.

I also know of an effort involving running an Arm64 hypervisor and then running the current 32-bit RISC OS kernel in a whole-machine VM. I lack any tech details about it so far, though.