Search found 258 matches

by SteveBagley
Wed Jul 29, 2020 8:29 am
Forum: off-topic
Topic: Ext4 Bad Sectors
Replies: 20
Views: 483

Re: Ext4 Bad Sectors

What are you using as your storage solution? Hopefully not just a single drive… My recommendation is that you migrate the data to some form of RAID system, software based is fine. Personally, I’d recommend ZFS based since it has saved my bacon (well, data) when disks have failed and has a lot more f...
by SteveBagley
Sun Jul 12, 2020 9:47 am
Forum: 8-bit acorn software: classic games
Topic: Need help finding Trains game
Replies: 3
Views: 292

Re: Need help finding Trains game

Are you sure it was on the BBC? It sounds a lot like this game for the ZX Spectrum.

https://spectrumcomputing.co.uk/index.p ... 96&id=5374

Steve
by SteveBagley
Thu Jul 02, 2020 11:02 pm
Forum: programming
Topic: How to detect machine type
Replies: 5
Views: 282

Re: How to detect machine type

Wasn’t there a !ArcBoot you could use to differentiate between Beeb and RiscOS, or am I misremembering?

Steve
by SteveBagley
Thu Jul 02, 2020 1:07 pm
Forum: 32-bit acorn hardware
Topic: R260 - missing CPU card?
Replies: 30
Views: 1288

Re: R260 - missing CPU card?

One of the images shows the floppy light on -- would the floppy light up with out a CPU?

Steve
by SteveBagley
Wed Jul 01, 2020 6:32 pm
Forum: general
Topic: Apple goes ARM
Replies: 43
Views: 1917

Re: Apple goes ARM

It's going to be a bit odd for us 'creatives" because the thought of a less powerful processor won't go down well when trying to shuttle around multiple 4k video streams. But I'm not sure Apple care about us any more Did you see the Final Cut Pro Demo at the keynote demoing exactly that? Manipulati...
by SteveBagley
Fri Jun 26, 2020 1:16 pm
Forum: 32-bit acorn hardware
Topic: Bush Internet IBX250
Replies: 30
Views: 1644

Re: Bush Internet IBX250

:D I think that the thing to do would be to get one of Myelin's arcflash modules and try to make a custom rom image incorporating RamFs and some way of transferring files via the modem and terminal program, for a start. If you can get the serial port working and drop into BASIC, you can use the C p...
by SteveBagley
Tue Jun 23, 2020 3:47 pm
Forum: general
Topic: Apple goes ARM
Replies: 43
Views: 1917

Re: Apple goes ARM

I like the ARM architecture and feel a certain wistfulness towards it for obvious reasons, but I'm not convinced about performance. I suppose there are arguments to be made that most users who spend their time in a browser don't need bleeding-edge speed any more, that the Mac has never really been ...
by SteveBagley
Mon Jun 22, 2020 10:13 pm
Forum: general
Topic: Apple goes ARM
Replies: 43
Views: 1917

Re: Apple goes ARM

roland wrote:
Mon Jun 22, 2020 9:24 pm
RiscOS on my Mac in the future? 8)
No chance I expect. As I understand it, Apple's silicon is likely to be AArch64 only, while RISC OS is stuck in AArch32 (32-bit) ARM land.

Steve
by SteveBagley
Tue May 12, 2020 12:22 am
Forum: 8-bit acorn software: other
Topic: Hacking the school Econet
Replies: 24
Views: 2700

Re: Hacking the school Econet

Elder of Psion wrote:
Mon May 11, 2020 12:25 pm

Then someone replaced all the BBC Master 128's with Acorn Archimedes...es. It was the end of an era.
But the start of a different one — a lot of the same primitives still worked ;) see the my post sbove for some of the hijinks we got up to with Econet-enabled Arcs…

Steve
by SteveBagley
Fri May 08, 2020 11:18 am
Forum: 8-bit acorn hardware
Topic: What to do with a Model A?
Replies: 37
Views: 1478

Re: What to do with a Model A?

I've already added RAM to get up to 32kb, fitted the missing 6522 and ADC, and can easily add the other missing ICs, but are there any storage solutions that don't need ports fitted in place underneath (plug in SPI SD interface?)... And what about RGB output - can this be tapped form somewhere inte...
by SteveBagley
Wed Apr 29, 2020 12:33 am
Forum: 32-bit acorn hardware
Topic: Bush Internet IBX250
Replies: 30
Views: 1644

Re: Bush Internet IBX250

I tried to do it with the POST box, but the system would reset as soon as it got a 'read memory' command, so obviously I was getting something wrong there. Soldering a wire to the TXD1 pin on the SuperIO chip let me dump the ROM out the serial port though. Nice work! BtW, this might be useful if yo...
by SteveBagley
Sun Apr 26, 2020 12:21 am
Forum: 32-bit acorn software: other
Topic: Vprotect
Replies: 12
Views: 2296

Re: Vprotect

If I remember correct, you can you trigger it to think there’s a particularly nasty virus by generating a service call with the hex value &DECAF or &C0FFEE. I can’t remember which virus it throws up but its dead easy to generate (using OS_ServiceCall iirc, it’s been 25 years since I used this trick)...
by SteveBagley
Fri Apr 24, 2020 8:45 am
Forum: 32-bit acorn hardware
Topic: Bush Internet IBX250
Replies: 30
Views: 1644

Re: Bush Internet IBX250

I also have one of these (although it’s currently locked in my office at work, which is inaccessible for the foreseeable future…). One useful form of attack is the parallel port since the OS ROM includes modules for driving a parallel port ZIP drive, and so can be used to load additional modules. BA...
by SteveBagley
Mon Apr 20, 2020 10:12 am
Forum: general
Topic: Acorn Communicators on TV… in 1996
Replies: 6
Views: 443

Re: Acorn Communicators on TV… in 1996

Boydie wrote:
Mon Apr 20, 2020 7:27 am
Bull Electrical were flogging them off, boxed with manuals, for £30 each around 1994/5. As well as cheap night vision and other geeky stuff.
Might be the sort of place a set designer for a geek tv show on a tight budget would look.
That would certainly explain it!

Steve
by SteveBagley
Mon Apr 20, 2020 12:15 am
Forum: general
Topic: Acorn Communicators on TV… in 1996
Replies: 6
Views: 443

Acorn Communicators on TV… in 1996

I’ve been steadily rewatching 'Bugs' (BBC1's hi tech Saturday night drama from the mid-90s), when I spotted this at the start of the season two episode 'Schrodinger's Bomb'… http://Wotan.computer/bugs-communicator.jpg Unless I’m mistaken, isn’t that a pair of Acorn Communicators hiding at the bottom...
by SteveBagley
Sun Apr 12, 2020 8:12 pm
Forum: 8-bit acorn emulators
Topic: BeebEm Mac - Info
Replies: 187
Views: 13751

Re: BeebEm Mac - Info

kesterlester wrote:
Sun Apr 12, 2020 7:44 pm


Is it expected that _BEEmulator.h is not in the xcode project you posted? See attached image of what x-code says after build is clicked ...
It should be there -- it's certainly in the tar on the website. It should be found in: BeebEmX/BeebEmX/Emulator/BEEmulator.h

Steve
by SteveBagley
Fri Apr 10, 2020 3:57 pm
Forum: 8-bit acorn software: other
Topic: Software in "other" programming languages
Replies: 8
Views: 640

Re: Software in "other" programming languages

Wasn’t the BBC Domesday software written in BCPL?

Steve
by SteveBagley
Sat Apr 04, 2020 10:57 am
Forum: past all-day virtual ABugs
Topic: All-day 'Virtual' Acorn session #1, Saturday 11th April 2020, 9am - 5pm
Replies: 97
Views: 4532

Re: First 'Virtual ABug', Saturday 11th April, 9am - 5pm

I'd had similar thoughts and knew we'd end up discussing this pretty quickly. I think what may happen is other meetings will be started to drill down into each category. Whether markjw can do this or others have use their free accounts to host smaller meetings shouldn't be such a problem as long as...
by SteveBagley
Fri Apr 03, 2020 2:32 pm
Forum: general
Topic: Wikipedia articles on Econet and DFS [citation needed]
Replies: 16
Views: 1213

Re: Wikipedia articles on Econet and DFS [citation needed]

Looking at the Wikipedia edit history, it looks like those comments were added by the user Rob Napier in 2013. Chris Dawkins' Econet book (scans in the other thread) mentions a Rob Napier at Barson Computers and, of course, there was a book about Econet written by Rob Napier. I wonder if there's a w...
by SteveBagley
Thu Apr 02, 2020 11:24 pm
Forum: 8-bit acorn emulators
Topic: BeebEm Mac - Info
Replies: 187
Views: 13751

Re: BeebEm Mac - Info

camsoft2000 wrote:
Thu Apr 02, 2020 5:31 pm
I guess it will need porting to Apple's Metal framework to future proof it for years to come.
Yea — although I doubt OpenGL will disappear for a long while…

Steve
by SteveBagley
Thu Apr 02, 2020 5:27 pm
Forum: 8-bit acorn emulators
Topic: BeebEm Mac - Info
Replies: 187
Views: 13751

Re: BeebEm Mac - Info

camsoft2000 wrote:
Thu Apr 02, 2020 5:23 pm
And it works in Catalina, nice work Steve. Will be really helpful as I'm less familiar with emulators myself but pretty competent with Cocoa and AppKit.
Yea -- I was trying to keep it clean (at least until Apple deprecated OpenGL).

Steve
by SteveBagley
Thu Apr 02, 2020 5:12 pm
Forum: 8-bit acorn emulators
Topic: BeebEm Mac - Info
Replies: 187
Views: 13751

Re: BeebEm Mac - Info

I'd be very interested in seeing a copy of that, Steve! :idea: The compiled app (unsigned -- you'll need to right-click and select open to force macOS to run it) is jhere . With the Xcode project, here . Please bear in mind this was a hack I put together and not intended for release but people migh...
by SteveBagley
Thu Apr 02, 2020 4:39 pm
Forum: 8-bit acorn emulators
Topic: BeebEm Mac - Info
Replies: 187
Views: 13751

Re: BeebEm Mac - Info

About five years ago, I hacked around with the windows BeebEm source code to compile a version that runs purely in Cocoa and doesn’t rely on any non-native libraries (video is via OpenGL, audio via OpenAL — well they were native then). The downside is I was rather liberal in editing the BeebEm sourc...
by SteveBagley
Wed Apr 01, 2020 11:25 am
Forum: archive requests
Topic: Econet Micro Guide by Christopher Dawkins
Replies: 18
Views: 4020

Re: Econet Micro Guide by Christopher Dawkins

This brings back some fond memories of borrowing this from the local library in the 1990s… Some interesting comments in there though, specifically about Econet being ported to other machines in Appendix 1: Econet hardware has been implemented for the Apple II, the Nascoms 1 and 2, the Research Machi...
by SteveBagley
Thu Mar 19, 2020 10:36 pm
Forum: off-topic
Topic: Isolating myself - for three months !!!!!!!!!!!
Replies: 40
Views: 2673

Re: Isolating myself - for three months !!!!!!!!!!!

danielj wrote:
Thu Mar 19, 2020 9:39 pm
We're basically on lockdown here. The University has moved everyone to home working. Zoom is my new friend.
Same here — although did have time to nip into my office and grab some of my retro machines (no Acorns though, all Atari) :). We are MS Teams based here though.

Steve
by SteveBagley
Fri Mar 13, 2020 7:38 pm
Forum: 8-bit acorn hardware
Topic: Electron Screen Mode at startup
Replies: 5
Views: 365

Re: Electron Screen Mode at startup

jms2 wrote:
Fri Mar 13, 2020 7:30 pm
No it doesn't. It's hard wired to Mode 6.
Presumably in the ROM chip?

Steve
by SteveBagley
Fri Mar 13, 2020 6:59 pm
Forum: 8-bit acorn hardware
Topic: Electron Screen Mode at startup
Replies: 5
Views: 365

Electron Screen Mode at startup

Does the Acorn Electron have a mechanism to specify what screen mode it starts up in (similar to the DIP switches on the BBC Model B's keyboard)? The reason I ask is that I have a student who is developing an Electron emulator for his final year dissertation and we were trying to track down this aft...
by SteveBagley
Wed Mar 04, 2020 3:43 pm
Forum: 8-bit acorn hardware
Topic: [Fixed!] Completely new to BBC hardware - Master with flashing cursor, no boot
Replies: 37
Views: 1275

Re: Completely new to BBC hardware - Master with flashing cursor, no boot

Turn it on while holding down the 'R' key to reset the CMOS configuration -- that should (hopefully) bring it up in a working state.

Steve
by SteveBagley
Wed Mar 04, 2020 2:42 pm
Forum: 32-bit acorn hardware
Topic: Acorn Ethernet 3 podule EPROM and RISCiX
Replies: 9
Views: 1310

Re: Acorn Ethernet 3 podule EPROM and RISCiX

Over two years later, and I've finally got this working by burning RobC's ROM image and installing it into the Ether3. Well, I only burnt the first 32K since I only had 32K ROMs to hand but that seems to have worked. I also think I've sussed the reason it wasn't being recognised before. The podule h...
by SteveBagley
Wed Mar 04, 2020 12:39 pm
Forum: 32-bit acorn software: other
Topic: RISC iX - Cloned!
Replies: 187
Views: 27975

Re: RISC iX - Cloned!

Think I've found what the problem is -- it doesn't seem to like booting RISCiX if automatic monitor detection is turned on.

Steve

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