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rougol.bsky.social
RISC OS London
@rougol.bsky.social
170 followers 190 following 110 posts
The RISC OS User Group Of London holds monthly meetings for fans of RISC OS, Archimedes, ARM, BBC Micro, and other Acorn computers and descendants such as the Raspberry Pi.
https://rougol.jellybaby.net/
Posts by Bryan Hogan @helpfuldemon.bsky.social
Posts Replies Media Videos
rougol.bsky.social
That's Brockian Ultra-Cricket rule 3 -
hitchhikers.fandom.com/wiki/Brockia...
Client Challenge
hitchhikers.fandom.com
December 5, 2025 at 6:01 PM
rougol.bsky.social
Wouldn't the multiply by 25 be quicker as two multiplies by 5:
add r0,r0,r0 lsl #2
...rather than using a mul instruction?
(although I'm only familiar with ARM32 not ARM64!)
December 5, 2025 at 5:46 PM
rougol.bsky.social
Hate that. The number of support calls it used to generate from people who had lost files 🤬
December 2, 2025 at 12:25 PM
Reposted by RISC OS London
colinhoad.com
I make videos about old computers and how much fun you can still have with them today - coding them, gaming on them and just generally appreciating them for what they are. Tech that was good, actually! YouTube.com/colinhoad
Colin Hoad
Hello! I'm Colin and I make videos about my love of all things Acorn - the BBC Micro, BBC Master, Acorn Electron and all the games and software these mighty machines are capable of running. I got my f...
YouTube.com
November 28, 2025 at 11:19 PM