Gavin Crawford
@givvygavvygoo.bsky.social
Freelance graphic design & book layout.
Programmer, software & web developer, geek & boffin.
#RISC_OS / #Acorn Computers fanatic.
#Ovation_Pro user & creator of custom add-on applets
Using #ARM Architecture to run my desktop of choice for the past 30+ yrs
Programmer, software & web developer, geek & boffin.
#RISC_OS / #Acorn Computers fanatic.
#Ovation_Pro user & creator of custom add-on applets
Using #ARM Architecture to run my desktop of choice for the past 30+ yrs
Reposted by Gavin Crawford
Reposted by Gavin Crawford
Ready to röck your Chuckie Eggs at @computinghistory.org.uk this weekend. That poor little Spectrum being dwarfed by the bigger machines is my original machine so be nice to it 😄
November 14, 2025 at 7:04 PM
Ready to röck your Chuckie Eggs at @computinghistory.org.uk this weekend. That poor little Spectrum being dwarfed by the bigger machines is my original machine so be nice to it 😄
It's starting to feel a lot like Christmas.
November 14, 2025 at 11:46 PM
It's starting to feel a lot like Christmas.
Reposted by Gavin Crawford
The 1987 Pre-Release 3D Lander Demo running on an Acorn Archimedes (Yes, 1987 ARM Power!)
November 13, 2025 at 11:58 AM
The 1987 Pre-Release 3D Lander Demo running on an Acorn Archimedes (Yes, 1987 ARM Power!)
Reposted by Gavin Crawford
Reposted by Gavin Crawford
Moving back to Linux RPCEmu on my Mac
www.iconbar.com/articles/Mov...
I'm a big fan of RPCEmu which provides an excellent RISC OS environment on my Mac when I'm travelling. In this post I'm going to explore why I have switched back to the Linux version and cover some of the issues I encountered.
www.iconbar.com/articles/Mov...
I'm a big fan of RPCEmu which provides an excellent RISC OS environment on my Mac when I'm travelling. In this post I'm going to explore why I have switched back to the Linux version and cover some of the issues I encountered.
Moving back to Linux RPCEmu on my Mac
Technology News and Views
www.iconbar.com
November 11, 2025 at 12:31 PM
Moving back to Linux RPCEmu on my Mac
www.iconbar.com/articles/Mov...
I'm a big fan of RPCEmu which provides an excellent RISC OS environment on my Mac when I'm travelling. In this post I'm going to explore why I have switched back to the Linux version and cover some of the issues I encountered.
www.iconbar.com/articles/Mov...
I'm a big fan of RPCEmu which provides an excellent RISC OS environment on my Mac when I'm travelling. In this post I'm going to explore why I have switched back to the Linux version and cover some of the issues I encountered.
Reposted by Gavin Crawford
Okudagrams are old-hat, so of course must be supported in RISC OS.
November 10, 2025 at 7:53 PM
Okudagrams are old-hat, so of course must be supported in RISC OS.
Reposted by Gavin Crawford
Here is an article with all the details about a new chunk of progresses on #UltimaVM and the new project's mascot Luma. Still lots of work to finish to get the first beta release out, but hey I am moving forward!
paolozaino.wordpress.com/2025/11/09/u...
#RISC_OS #riscos #Linux #Windows #macOS #BSD
paolozaino.wordpress.com/2025/11/09/u...
#RISC_OS #riscos #Linux #Windows #macOS #BSD
UltimaVM: Update 2025-11-08 – More features added to Ultima – Function pointers, Code sections and more
Given the interest Ultima has been receiving from enthusiasts and engineers, both online and at the few computer shows where I’ve demonstrated it, I think some will appreciate a more detailed look …
paolozaino.wordpress.com
November 9, 2025 at 4:59 PM
Reposted by Gavin Crawford
I've just uploaded an update to my RISC OS !RMA utility, primarily to fix RO3 compatibility (thanks to Phil Pemberton for the report) but I noticed I hadn't released the previous version that featured an important upgrade - the ability to explore ANY Heaped Dynamic Area. So, a useful update:
nemo20000 - !RMA
A tool for inspecting the contents of the Relocatable Module Area.
rma.20000.org
November 9, 2025 at 2:36 PM
I've just uploaded an update to my RISC OS !RMA utility, primarily to fix RO3 compatibility (thanks to Phil Pemberton for the report) but I noticed I hadn't released the previous version that featured an important upgrade - the ability to explore ANY Heaped Dynamic Area. So, a useful update:
Reposted by Gavin Crawford
New video uploaded: youtu.be/AuB1leFGihY
Demonstrates how our RISC OS Companions integrate with the RISC OS desktop environment.
#RISC_OS
#RISCOSCompanion
Demonstrates how our RISC OS Companions integrate with the RISC OS desktop environment.
#RISC_OS
#RISCOSCompanion
Linux Companions for RISC OS
YouTube video by RISCOS bits
youtu.be
November 8, 2025 at 7:43 PM
New video uploaded: youtu.be/AuB1leFGihY
Demonstrates how our RISC OS Companions integrate with the RISC OS desktop environment.
#RISC_OS
#RISCOSCompanion
Demonstrates how our RISC OS Companions integrate with the RISC OS desktop environment.
#RISC_OS
#RISCOSCompanion
Reposted by Gavin Crawford
Thanks to @markee174 and The Icon Bar for the review of the latest issue of Archive! #riscos #acorn #raspberrypi
www.iconbar.com/articles/Arc...
www.iconbar.com/articles/Arc...
November 5, 2025 at 7:11 PM
Thanks to @markee174 and The Icon Bar for the review of the latest issue of Archive! #riscos #acorn #raspberrypi
www.iconbar.com/articles/Arc...
www.iconbar.com/articles/Arc...
Reposted by Gavin Crawford
I've finally finished pimping my David Braben-signed BBC Micro B+, and it can now run more variants of Bell & Braben Elite than any other contemporary machine ever.
The #BBCMicro B+ is officially the Commander-in-Chief of #8bit #Elite. 🫡
See thread for details.
(1/8)
#retrogaming #retrocomputing
The #BBCMicro B+ is officially the Commander-in-Chief of #8bit #Elite. 🫡
See thread for details.
(1/8)
#retrogaming #retrocomputing
November 5, 2025 at 7:42 PM
I've finally finished pimping my David Braben-signed BBC Micro B+, and it can now run more variants of Bell & Braben Elite than any other contemporary machine ever.
The #BBCMicro B+ is officially the Commander-in-Chief of #8bit #Elite. 🫡
See thread for details.
(1/8)
#retrogaming #retrocomputing
The #BBCMicro B+ is officially the Commander-in-Chief of #8bit #Elite. 🫡
See thread for details.
(1/8)
#retrogaming #retrocomputing
Reposted by Gavin Crawford
BBC Basic is not Perl, but nemoBasic’s long strings and DIV$ operator do make it good at consuming and parsing text files.
I’ve just added a long-planned feature: “StrongTabs” seps mode – which isn’t limited to tab characters or one-character separators, but consumes multiple separators as one...
I’ve just added a long-planned feature: “StrongTabs” seps mode – which isn’t limited to tab characters or one-character separators, but consumes multiple separators as one...
November 4, 2025 at 1:52 PM
BBC Basic is not Perl, but nemoBasic’s long strings and DIV$ operator do make it good at consuming and parsing text files.
I’ve just added a long-planned feature: “StrongTabs” seps mode – which isn’t limited to tab characters or one-character separators, but consumes multiple separators as one...
I’ve just added a long-planned feature: “StrongTabs” seps mode – which isn’t limited to tab characters or one-character separators, but consumes multiple separators as one...
Reposted by Gavin Crawford
What is Hearsay? www.riscosopen.org/forum/forums/1/topics/20094 #riscos #acorn #raspberrypi #opensource
November 3, 2025 at 12:59 PM
What is Hearsay? www.riscosopen.org/forum/forums/1/topics/20094 #riscos #acorn #raspberrypi #opensource
Reposted by Gavin Crawford
WROCC November 2025 talk on Wednesday - Martin Avison
www.iconbar.com/articles/WRO...
The November 2025 WROCC talk is on Wednesday 5th November and starts at at 7.45pm on Zoom.
www.iconbar.com/articles/WRO...
The November 2025 WROCC talk is on Wednesday 5th November and starts at at 7.45pm on Zoom.
WROCC November 2025 talk on Wednesday - Martin Avison
Technology News and Views
www.iconbar.com
November 3, 2025 at 10:48 AM
WROCC November 2025 talk on Wednesday - Martin Avison
www.iconbar.com/articles/WRO...
The November 2025 WROCC talk is on Wednesday 5th November and starts at at 7.45pm on Zoom.
www.iconbar.com/articles/WRO...
The November 2025 WROCC talk is on Wednesday 5th November and starts at at 7.45pm on Zoom.
Reposted by Gavin Crawford
October 2025 News Summary
www.iconbar.com/articles/Oct...
Some things we noticed this month. What did you see?
www.iconbar.com/articles/Oct...
Some things we noticed this month. What did you see?
October 2025 News Summary
Technology News and Views
www.iconbar.com
October 31, 2025 at 6:23 PM
October 2025 News Summary
www.iconbar.com/articles/Oct...
Some things we noticed this month. What did you see?
www.iconbar.com/articles/Oct...
Some things we noticed this month. What did you see?
Look what's arrived, just in time for the weekend.
#ArchiveMagazine
#RISC_OS
@archiveriscos.bsky.social
#ArchiveMagazine
#RISC_OS
@archiveriscos.bsky.social
October 31, 2025 at 6:48 PM
Look what's arrived, just in time for the weekend.
#ArchiveMagazine
#RISC_OS
@archiveriscos.bsky.social
#ArchiveMagazine
#RISC_OS
@archiveriscos.bsky.social
Reposted by Gavin Crawford
ROOL adds Fortran support in latest DDE update
www.iconbar.com/articles/ROO...
ROOL clearly have big plans for the RISC OS DDE
www.iconbar.com/articles/ROO...
ROOL clearly have big plans for the RISC OS DDE
ROOL adds Fortran support in latest DDE update
Technology News and Views
www.iconbar.com
October 30, 2025 at 9:41 PM
ROOL adds Fortran support in latest DDE update
www.iconbar.com/articles/ROO...
ROOL clearly have big plans for the RISC OS DDE
www.iconbar.com/articles/ROO...
ROOL clearly have big plans for the RISC OS DDE
Reposted by Gavin Crawford
Finally had some time to update #UltimaVM presentation article with all the latest improvements. I still need to publish the latest release of the Reference Manual, but at least the article is now up-to-date:
paolozaino.wordpress.com/portfolio/ul...
#Bytecode #VirtualMachine #RISC_OS #Linux #macOS
paolozaino.wordpress.com/portfolio/ul...
#Bytecode #VirtualMachine #RISC_OS #Linux #macOS
Ultima VM – Unified, Lightweight, Typed Instructions MAchine bytecode interpreter
UltimaVM is a lightweight, high-performance bytecode interpreter designed for Application Virtualization. Its goal is to improve the developer experience and optimize the execution of secure, porta…
paolozaino.wordpress.com
October 30, 2025 at 10:30 PM
Finally had some time to update #UltimaVM presentation article with all the latest improvements. I still need to publish the latest release of the Reference Manual, but at least the article is now up-to-date:
paolozaino.wordpress.com/portfolio/ul...
#Bytecode #VirtualMachine #RISC_OS #Linux #macOS
paolozaino.wordpress.com/portfolio/ul...
#Bytecode #VirtualMachine #RISC_OS #Linux #macOS
Reposted by Gavin Crawford
Acorn A5000 Alpha. 37.5MHz ARM clock, 16.67MHz (60ns) RAM clock... 31799 SICK 1.28 Dhrystones/sec... wild.
This is nipping at the heels of an ARM610 RISC PC.
https://stardot.org.uk/forums/viewtopic.php?p=468630#p468630
#riscos #acornrisc #AcornComputers #retrocomputing
This is nipping at the heels of an ARM610 RISC PC.
https://stardot.org.uk/forums/viewtopic.php?p=468630#p468630
#riscos #acornrisc #AcornComputers #retrocomputing
October 28, 2025 at 10:04 PM
Acorn A5000 Alpha. 37.5MHz ARM clock, 16.67MHz (60ns) RAM clock... 31799 SICK 1.28 Dhrystones/sec... wild.
This is nipping at the heels of an ARM610 RISC PC.
https://stardot.org.uk/forums/viewtopic.php?p=468630#p468630
#riscos #acornrisc #AcornComputers #retrocomputing
This is nipping at the heels of an ARM610 RISC PC.
https://stardot.org.uk/forums/viewtopic.php?p=468630#p468630
#riscos #acornrisc #AcornComputers #retrocomputing
Reposted by Gavin Crawford
Fun and games repairing vintage Mac Classics and Acorn cheese wedge units at the @tnmoc.bsky.social "Mac & Cheese" Fixathon event over the weekend!
youtu.be/O8U1R_09FDI
youtu.be/O8U1R_09FDI
"Mac & Cheese" Fixathon - October 2025
YouTube video by Colin Hoad
youtu.be
October 13, 2025 at 8:58 PM
Fun and games repairing vintage Mac Classics and Acorn cheese wedge units at the @tnmoc.bsky.social "Mac & Cheese" Fixathon event over the weekend!
youtu.be/O8U1R_09FDI
youtu.be/O8U1R_09FDI
Reposted by Gavin Crawford
Archive Edition 27:6 reviewed
www.iconbar.com/articles/Arc...
Archive Magazine 27:6 arrived this week, just in time to the London Show. After a quiet summer, it kicks off what looks like a busy Autumn.
www.iconbar.com/articles/Arc...
Archive Magazine 27:6 arrived this week, just in time to the London Show. After a quiet summer, it kicks off what looks like a busy Autumn.
Archive Edition 27:6 reviewed
Technology News and Views
www.iconbar.com
October 28, 2025 at 1:37 PM
Archive Edition 27:6 reviewed
www.iconbar.com/articles/Arc...
Archive Magazine 27:6 arrived this week, just in time to the London Show. After a quiet summer, it kicks off what looks like a busy Autumn.
www.iconbar.com/articles/Arc...
Archive Magazine 27:6 arrived this week, just in time to the London Show. After a quiet summer, it kicks off what looks like a busy Autumn.
Reposted by Gavin Crawford
Argos Catalogue 1993 (Autumn/ Winter)
October 27, 2025 at 7:47 PM
Argos Catalogue 1993 (Autumn/ Winter)
Reposted by Gavin Crawford
Happy @archiveriscos.bsky.social day!
October 27, 2025 at 5:47 PM
Happy @archiveriscos.bsky.social day!