ROUGOL logo Welcome to
RISC OS User Group Of London



ROUGOL is a not-for-profit organisation consisting of RISC OS users in London and the south-east. Our aim is to bring those users together. There is no membership fee and entry to all meetings is free. To find out more, email us.


Meetings are held on the third Monday of every month. Most meetings feature a guest speaker, demonstrating the latest hardware or software, giving tutorials of software both new and old, or simply to kick off discussions on the current hot topic. Entrance is free, so why not come along and say hello?


The next RISC OS London Show is on Saturday 29th October 2016.

Next meeting - Monday 16th November 2015 
Lua and Dynamic Linking on RISC OS - Gavin Wraith

Lua is a small easily learnt programming language that has been available on RISC OS, in the form of RiscLua, since 2002. Only now, though, with the arrival of GCC 4.7.4, has it become possible to implement Lua on RISC OS in anything like its standard form as found on other platforms.

The recently released RiscLua 6.0 attempts to be such an implementation and also to be as compatible as possible with earlier versions.

The big new feature is that it can use dynamic loading. Whereas programs running under previous versions of RiscLua could only extend themselves by loading in Lua libraries, now programs can extend the Lua interpreter itself, as they are being interpreted, with C libraries. This makes RiscLua far more extensible than it was before, when everything had to be linked statically. The difference between Lua modules and C modules is invisible to the user.

Gavin Wraith, the developer of RiscLua, will tell us about the possibilities this opens up and why it is a significant advance for RISC OS.

Click here for full details

Future Meetings
24 Oct: RISC OS London Show
16 Nov: Lua and Dynamic Linking on RISC OS, Gavin Wraith
21 Dec: Informal christmas get together

If there is a topic you would like to see covered, or (even better!) if there is a subject/program you would like to talk about or demonstrate, please contact us.

Recent Meetings
October: Show News
September: RISC OS Open Ltd, Rob Sprowson
August: Documentation Updates, Bernard Boase
July: MPdata+, Kevin Wells, KevSoft
June: Overlord, Anthony Bartram, Amcog Games
May: Pi Squared, Bernard Boase and Leo White
April: Pluto, Martin Avison, Avisoft
March: BASIC Presentations, Leila Johnston, Hack Circus ringmaster
February: The ARMX6, Richard Brown of Orpheus Internet and John Ballance of Castle Technology
January: The RISC OS Awards 2014
November: Chocks Away and Star Fighter 3000, Andrew Hutchings, FedNet - Video...

Click here for a full index of past meetings, reports etc...
If you see a topic that hasn't been covered for a while that you think needs revisiting, please let us know.