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I have an A3020 already so looking for an A3000 at this time.

Hello all, I’m interested in acquiring an A3000 for software development purposes. I am happy to pay a fair, but not excessive, price depending on configuration of RAM/HDD etc. Only requirement is that the machine is in full working order and the motherboard is demonstrably free of battery damage (c...

Elite typically did have anti-tampering CRC protection in a number of places.

I made a buildable disassembly of the BBC cassette version of Elite (probably the closest to the Electron version) which you can find on GitHub here: https://github.com/kieranhj/elite-beebasm

Maybe 2020 is the year of ‘next gen’...?

I found some time over the holidays to get my office set back up. I have managed to squeeze in 9 machines (not including the laptop) that can be used with only a modicum of cable shuffling. I’m on a bit of a ‘next gen’ trip for 2020 hence the Atari ST, Amiga and Archie. Of course it’ll all get destr...

I saw this mentioned on Twitter but didn’t have a link to the media for the talk itself, so thank you for posting that! Looking forward to watching it soon.

You’re just showing off now.

Any chance of an ssd now I’ve got my Elk set up with an SD64 plz?

Looking forward to what you come up with next and maybe a full length demo for NOVA2020...?

Thanks for doing a write up Sarah, this is really interesting. It’s been so long since I did any ARM, I naively assumed there would be no need for lots of unrolled code but clearly I’m completely wrong! I think I managed a 4x4 pixel rotozoomer but that was my limit BITD. There are a ton of awesome e...

IIRC many of the effects are done by changing the palette at the right moment. Can this be done on a FPGAtom, now that we have 64 colours and an eight MHz cpu core? This one has no fancy palette switching or CRTC tricks - at 2MHz there’s just enough time to move 64 3x3 pixel blocks independently. S...

:shock: :shock: Absolutely nuts! Such smooth animation. Brilliant! =D> =D> Btw, unlike the older version on the Bitshifters website, the latest version of JSBeeb enables sound on iOS: https://bbc.godbolt.org/?disc=https://bitshifters.github.io/content/bs-xmas-19.ssd&autoboot&model=Master :idea: Tha...

A festive greeting from Bitshifters for your BBC Micro!
https://bitshifters.github.io/posts/pro ... as-19.html

Amazing work! Love the high-res scanline look.

A great excuse for me to set my office back up after all the unplugging for ABUG! I’ll see if I can make a decent video capture from real hardware at some point too.

All but the earliest versions should work with higher PAGE - which one were you using Kieran? I regularly use ADFS and DFS with RT1.02 and that was fine :? Whichever one I got with my EEPROM. :) My B is still in a box after last ABUG but I’ll check when I set it all back up (hopefully tomorrow) and...

Thanks for the update! Any chance of a version that can cope with PAGE a bit > &1900 please? Several times I accidentally loaded two FS ROMs into my EEPROM so PAGE ended up ~&1B00. After that I get a ‘No Room’ error when trying to update ROM slots, which makes it a bit painful to correct my mistake.

So soon! Oh go on then, yes, please put me down for a table from Friday through Sunday. Thanks again for organising.

Great work Sarah! It was lovely to hear this on real hw at ABUG. Sounds amazing, like a real arcade machine and nothing like a Beeb!

Not very Acorn, I know, but does anyone have an Amiga 1200 they could bring along this weekend please? I have a new 8mb RAM upgrade for mine but it resolutely refuses to work. It would be great to determine whether the problems lies with the RAM board or my motherboard before I (continue) complainin...

Actually, it seems it didn't, at least not on the Model B. Oops, oh dear, that's definitely my bad, as they say. :oops: I'm slightly disappointed that no-one complained about it for the last two years. #-o Looks like 2 sectors reads is the way to go, at least for 'fast' devices (will need to test o...

I had a quick look at Teletext Bad Apple this afternoon (as I wanted to test the ICE-6502 in anger). On a Model B with the latest MMFS (1.44) it crashes consistently at 00:54 due to the ring buffer underflowing. Looking at why this might be, I noticed for "fast" devices the player is dynamically pa...

I still need to close the loop with Kieron on the Bad Apple / MMFS issues, so this may end up changing back again. Happy to do this at ABUG next weekend, a good opportunity to get to the bottom of it with the right people in the room! I also have a sneak peak of a new streaming demo so quite timely...

I’m sure there are some practical posts on here or maybe the old RetroSoftware programming forum. Otherwise check out the technical details on BeebWiki: http://beebwiki.mdfs.net/Address_translation#TTX_VDU

It’s been long established that with CRTC linear addressing mode, as used for MODE 7, the screen address is generally restricted to the top 1024 bytes of lower RAM, so &7C00 to &7FFF. However on Model B there is also a mapping to &3C00 which can be used for buffer swapping. Sadly this isn’t availabl...

Sounds like a bug/regession in MMFS/ Can you provide a few more details please, so I can try to replicate: - version of MMFS that doesn't work - version of MMFS that does work (if you can remember) - hardware configuration (Beeb, Master, etc) - brand of SD card - link to the version of the Bad Appl...

I can’t answer your questions #-o but I do have some to add of my own. The Teletext Bad Apple demo uses OSWORD &7F for multi-sector reads and used to work fine on MMFS (in fact I recall I had to make some changes to the way the streaming worked to accommodate) but I haven’t been able to get it runni...

Prince of Persia has a cutscene and a short gameplay sequence on loop. The music gets a bit grating but you can turn the volume down with CTRL+cursor down!

(Sorry, only a quick reply as I’m on a train.) Glad you found my write up useful. It’s not possible to read the vertical position of the raster from a CRTC register. *FX19 waits for the vertical sync interrupt which typically occurs a few rows after the end of the visible part of the screen has been...

1024MAK wrote: ↑

Sat Oct 19, 2019 7:28 pm

Yes.

Great! Thank you for confirming. I wish it didn’t hum so loudly, mind.

Steve1234 wrote: ↑

Sat Oct 19, 2019 7:18 pm

Ive been using a bog standard 19v laptop psu without any problems.

Sadly both of my laptops are USB-C ports only.

Hey all, a quick question - is it safe to use the black 21V PSU for an Electron Plus 3 with a regular Electron without the Plus 3 attached? I don't have the original cream wall-wart power supply but want to remove my Plus 3 for a bit. Thought I'd check in case I'm going to fry the little thing. If n...