The next meeting of the RISC OS User Group Of London will be:

JSbeeb and Compiler Explorer
Presented by Matt Godbolt

Monday 16th March 2026, 7:45pm

The Duke of Sussex
(upstairs in the *Chichester Room* from 6.30pm)
23 Baylis Road, London, SE1 7AY
https://rougol.jellybaby.net/venue.html

Also online via Zoom, meeting open from 7.30pm

https://rougol.jellybaby.net/meetings/


Matt Godbolt has a computing story that will be familiar, starting
programming on a Spectrum before upgrading to a BBC Master and then an Archimedes, finally moving on to PCs. Having written for Acorn User and produced Beeb games as a teenager, he then wrote RISC OS software such as IRClient and FinalLook while at university, before going on to work for Argonaut Games, Google, and many more.

These days Matt is known in the retro computing world for producing
JSbeeb, the BBC Micro emulator in Javascript which powers the Complete BBC Micro Games Archive, enabling every Beeb game to be played live in you browser. (He has also done a Spectrum emulator, but we don't talk about
that!)

Outside of retro circles, Matt's major public project is the Compiler
Explorer website, which enables the live analysis of the output of many different compilers to see how they optimise code.

Matt is visiting London from his home in Chicago and will be joining us in
the pub to talk about some/all/none of this and more! Come along to chat
to him and maybe buy him a thank you drink :-)

Note we are in the larger Chichester Room this month.


Future meetings
===============

Mon 20th April - Desktop Themes with Paolo Zaino and Martin Eastwood

As desktop theming has been topical recently, Paolo will be talking about
how it works and his theme application, and Martin will talk about the creation of his Frosted theme.

Mon 18th May - ARX and the Acorn Palo Alto Research Centre, Jim Mitchell

Jim Mitchell will be Zooming in from his home in California. Jim managed
the ARM development team and was head of the Acorn Research Centre in Palo Alto, where the original planned (but failed) Archimedes operating system
ARX was being developed. Very little has ever been heard about what
happened there, so this is a unique chance to find out all about it.

Before that he worked for 12 years at the legendary Xerox PARC where
ethernet, laser printers, postscript, file sharing, and the WIMP concept
were first developed. Later he worked for Sun and was responsible for the development of Java.

He's a computing giant and we are very excited to have him joining us :-)

https://en.wikipedia.org/wiki/James_G._Mitchell


Directions to the venue by car (there is parking directly outside the pub
on Coral Street) and public transport (recommended!) are on the website:

https://rougol.jellybaby.net/venue.html

Or contact us to receive the Zoom link to the meeting:

https://rougol.jellybaby.net/contacts/

If you have attended any previous meeting, it's the same link this month.

If you need any further information, please contact us as below.

RISC OS User Group Of London rougol2026@helpful-demon.co.uk https://rougol.jellybaby.net/ @rougol.bsky.social 07970 211 629


_______________________________________________________________ a.m.conroy@argonet.co.uk, Moderator of comp.sys.acorn.announce.
Submissions to csaa@owlart.net
Related mail to csaa-request@owlart.net

--- PyGate Linux v1.5.12
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)