Nigel Barnes's Avatar

Nigel Barnes

@pernod70.bsky.social

Emulation developer specialising in Acorn computers, also a pioneer of Psion SIBO emulation. If it's 8bit (or 16bit) and it's obscure and not emulated then I'm interested!

27 Followers  |  26 Following  |  50 Posts  |  Joined: 10.11.2024  |  2.4616

Latest posts by pernod70.bsky.social on Bluesky

Was my score beaten on day 2?

16.11.2025 19:31 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

He hadn't, and got that score on his second attempt!

16.11.2025 19:31 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

That was a tough score to beat, I came close a few times. I'm the other two on the left, though one of them was beaten at the end of the day.

16.11.2025 19:29 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Not a widely used CPU, but Tomy narrows it down considerably.

07.11.2025 20:13 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Here's some emulation progress of the rare Wren Executive, only 1000 made. An interesting CP/M machine with 64K/256K RAM and graphics capabilities with colour attributes. It also came with BBC BASIC and had a 40 column mode with 8 colours for Prestel.

31.10.2025 19:29 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Oh, different issues! Is the Limpet test disc imaged too?

19.10.2025 18:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

What does the /38 signify? I started some emulation improvements on the P2000 range a few months ago that I need to get back to.

17.10.2025 18:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Not a lot of clues there, maybe a VideoWriter?

17.10.2025 16:02 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Same here, my i7-4770K is still plenty for my uses. Have enrolled in the free extended support to get another year out of it though.

14.10.2025 16:14 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Looks like a much smaller event back then.

08.10.2025 20:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The only BBC game in the top 30 being 747 Flight Sim sounds a bit suspect.

06.10.2025 12:36 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Wireless video? Not seen anything like that before. Is it even legal to transmit in the UK?
I remember in the 80's we had a video sender box that would transmit the VCR to other TVs in the house, am sure it wasn't legit.

03.10.2025 12:03 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I knew it looked familiar, but still had to look it up to be sure.

02.10.2025 18:16 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Looks a bit Thorny!

02.10.2025 18:07 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Looks like some dodgy bloke is nicking bits out of them!

30.09.2025 17:10 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I'll be there.

27.09.2025 15:46 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Ah, so yours announces itself as 68000XD for the disk version, and the ROM is 68000XR, never knew that. More of this Crossware stuff needs archiving as so little is available to play with.

15.09.2025 22:19 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The Crossware 68K ROM that's archived is from 1985. I'd be interested in any Crossware ROMs you have in case there's anything not yet archived.

15.09.2025 21:58 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Don't think I've ever seen you with anything Acorn before!

15.09.2025 19:40 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

Speaking of Dragons ... no meetup this year, or are the usual suspects at GameFest instead?

15.09.2025 18:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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With the latest video improvements in MAME 0.280 we can now also play with the PMS Genie ROM (with PMS Clock). It's quite an impressive package for the time with 32K battery-backed RAM to keep it's data safe.

03.09.2025 17:02 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Another clone of the BBC Micro, the extremely rare (only two known to exist) Hope Dolphin from India is also now officially supported.

03.09.2025 11:31 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The latest MAME 0.280 release has lots of BBC Micro improvements, fixing lots of silly issues, and is finally able to render Elite correctly.
Another nice addition is the emulation of the Acorn speech upgrade, which currently no other emulator supports.

03.09.2025 11:27 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

Ah, the emulator that has no source for the ROMs it requires.

05.08.2025 19:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Which emulator are you referring to? MAME emulates both the PHC-20, thanks to Tony, and PHC-25.

05.08.2025 19:11 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Yes, the 6847 does generate colours, but NTSC! My interpretation is that it generates a colour NTSC signal that cannot be decoded by a PAL TV decoder, so the result is black and white. I'm sure someone will correct me if wrong but isn't it also 60Hz which PAL TV's just about manage to lock onto?

05.08.2025 17:27 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Our first phone in the 70's was a Trimphone, and family home still has the same number that was allocated back then, albeit now with an extra digit.

22.07.2025 17:06 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Ever wondered what it's like to have a Votrax Type 'N Talk hooked up to a BBC Micro via the RS423 port?

18.07.2025 13:02 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Another ROM for the Psion Series 3mx was dumped yesterday, this is a Dutch version and will be supported in the next MAME release.
We're always looking out for non UK versions of Series 3a/3c/3mx, and already have a few for the 3a/3mx but only a UK version of the 3c. Get in touch if you have any.

06.07.2025 11:08 β€” πŸ‘ 1    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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A few months ago I started work on emulating the Psion Series 7. The machine starts to boot and confirms I have the palette and screen rendering implemented correctly, but still lots more work required to understand the hardware.

04.07.2025 15:39 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

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