CJE have them although not cheap: http://www.cjemicros.co.uk/micros/indiv ... 3010PSUTR1
Might be worth asking them if they'll do a deal or have any junked A3010/A3020 PCBs that you can salvage the transformer from...
Search found 3073 matches
- Wed Jan 20, 2021 3:59 pm
- Forum: general
- Topic: Today I received.....
- Replies: 6086
- Views: 676991
- Tue Jan 19, 2021 11:16 am
- Forum: wanted
- Topic: WANTED - BBC Master I/O Controller CF30050
- Replies: 4
- Views: 199
Re: WANTED - BBC Master I/O Controller CF30050
I've had a good look through my parts boxes but unfortunately can't find any of these. I'm pretty sure I had some so I've either used them (or given them away at some point) or they are packed away somewhere.
I'll keep an eye out for them in case they turn up.
I'll keep an eye out for them in case they turn up.
- Tue Jan 19, 2021 8:53 am
- Forum: 8-bit acorn hardware
- Topic: B+ DFS & ADFS versions for PAGE E00
- Replies: 10
- Views: 785
Re: B+ DFS & ADFS versions for PAGE E00
Coming back to this afternoon some time. I suppose you can combine rom and ram with some address decoding on a single board to get page at E00 and not load ADFS or DFS in SW RAM each time you boot? Also B+ sockets being configurable as 32k you could have both ADFS and DFS on a single plugin board I...
- Sun Jan 17, 2021 1:47 pm
- Forum: 32-bit acorn hardware
- Topic: Restoring an A540 and a R260 - where to start?
- Replies: 7
- Views: 323
Re: Restoring an A540 and a R260 - where to start?
I repaired an R260 where battery gunk had caused lots of the tracks to be damaged. Having a working A540 board helped as I could find out which tracks were broken and where they were supposed to go. So, it might help to have the two boards side by side and compare tracks in the affected areas with a...
- Sat Jan 16, 2021 10:19 am
- Forum: new ideas wishlist & general chat
- Topic: Chuckie's ideas for game versions to the BBC
- Replies: 6
- Views: 222
Re: Chuckie's ideas for game versions to the BBC
I remember playing this game on a Coleco emulator (possibly on my RiscPC)! I once thought about porting it to the Einstein as it's quite similar to the Coleco. I think it would look pretty good as a mode 2 game on the Beeb as it has large, colourful graphics. The sprites are pretty big by Beeb stand...
- Thu Jan 14, 2021 5:57 pm
- Forum: archive submissions
- Topic: OS9 Hard Disc Image
- Replies: 18
- Views: 572
Re: OS9 Hard Disc Image
I guess it must be at the Centre for Computing History now then?BeebMaster wrote: ↑Thu Jan 14, 2021 5:50 pmI think Chris Whytehead must be the only person who has one. Interestingly, the box the drive came in originated at Cumana, I've only just made the connection despite having purchased it 15 years ago this coming Saturday!
- Thu Jan 14, 2021 5:11 pm
- Forum: archive submissions
- Topic: OS9 Hard Disc Image
- Replies: 18
- Views: 572
Re: OS9 Hard Disc Image
Shame, I would really have liked to get it going. I wonder if the person who sold me the drive had the Cumana board as well. There are some schematics here but I don't know how complete they are. It does seem like an interesting board - I have a Casper 68000 co-pro but there's not a lot of software...
- Wed Jan 13, 2021 6:22 pm
- Forum: archive submissions
- Topic: OS9 Hard Disc Image
- Replies: 18
- Views: 572
Re: OS9 Hard Disc Image
Just tried it in BeebEm again. I used the debugger to break while it was hanging on the *OS9 call and it was stuck in this loop: 812E LDA &2400 8131 BEQ &812E From somewhere (probably on here :D ), I have a file called OSROM9.ASM which claims to be the assembler source code listing for the &...
- Tue Jan 12, 2021 5:59 pm
- Forum: archive submissions
- Topic: OS9 Hard Disc Image
- Replies: 18
- Views: 572
Re: OS9 Hard Disc Image
I ripped out that ROM image and fired it up in BeebEm. It gives the expected help message and implements *OS9 but then, unsurprisingly, hangs as I guess it waits for the co-pro board to respond.
- Tue Jan 12, 2021 5:31 pm
- Forum: archive submissions
- Topic: OS9 Hard Disc Image
- Replies: 18
- Views: 572
Re: OS9 Hard Disc Image
This is great - thanks for taking the effort to preserve it. I'll be trying to use it with the Cumana 68008 2nd processor Looks like that it what it's from - there appears to be a 6502 Beeb paged ROM image starting at 0x19700 in the latest dump that says: "68008 on the BBC Version 2.2 (C) Snowt...
- Tue Jan 12, 2021 11:23 am
- Forum: 8-bit acorn hardware
- Topic: Alternate universe: BBC Model C (64k, console)
- Replies: 16
- Views: 746
Re: Alternate universe: BBC Model C (64k, console)
An extra 16K of RAM and 16 proper colours would have made it a much better computer, but the Beeb was never going to compete on the games front because it was too expensive. And more memory wouldn't have fixed the lack of sprites/scrolling hardware. Agree on cost but not sure about the lack of spri...
- Mon Jan 11, 2021 2:50 pm
- Forum: 8-bit acorn hardware
- Topic: VideoNuLA ROM Image
- Replies: 6
- Views: 341
Re: VideoNuLA ROM Image
It's 1.03 - I'll fix the help text.
- Mon Jan 11, 2021 9:57 am
- Forum: 8-bit acorn hardware
- Topic: SpectROM - Speccy emulator for the Pi co-pro
- Replies: 188
- Views: 18993
Re: SpectROM - Speccy emulator for the Pi co-pro
You'll need to pad the SpectROM image to be 16KB and then duplicate that.
Let me know if you're unable to do this and I'll post a version padded to 16KB here.
Let me know if you're unable to do this and I'll post a version padded to 16KB here.
- Sun Jan 10, 2021 9:34 pm
- Forum: 8-bit acorn hardware
- Topic: Torch Z80 board
- Replies: 6
- Views: 302
Re: Torch Z80 board
Have a look here . The TORCH.TXT file gives info on which ROMs go where. I don't think anyone has written a version that works with an SD card so it's possibly really floppy drives or Goteks only :( However, I think it only needs the ROMs to boot up (although it won't be much use without disk access...
- Sun Jan 10, 2021 7:46 pm
- Forum: 8-bit acorn hardware
- Topic: SpectROM - Speccy emulator for the Pi co-pro
- Replies: 188
- Views: 18993
Re: SpectROM - Speccy emulator for the Pi co-pro
and burned to a 27C512 eeprom placed on a bbc master rom cart Have you been able to get other ROMs working using this configuration? What sort of cartridge are you using? I'm not sure any of the ones I have are designed for 64KB chips. As JGH suggests, it might be worth duplicating the image at 16K...
- Sun Jan 10, 2021 6:39 pm
- Forum: 32-bit acorn software: other
- Topic: Fast Raytracing on the Native ARM Mode of PiTube direct
- Replies: 49
- Views: 1583
Re: Fast Raytracing on the Native ARM Mode of PiTube direct
I use a custom VDU handler (OSWRCH) and use certain bytes to represent different types of transfer (e.g. single byte, double byte, multiple bytes, whole row, sound data). On entry my custom VDU handler looks for the special characters in A and then, depending on the type of transfer, reads additiona...
- Sun Jan 10, 2021 5:36 pm
- Forum: archive submissions
- Topic: Simonsoft Disassembler
- Replies: 0
- Views: 140
Simonsoft Disassembler
Picked this up on tape from eBay last month. I knew there'd been talk about imaging it before so thought I'd grab it. I'll try to make a uef at some point but here's a quick SSD I made on my M128/DC. I think it's copied over correctly but haven't given it a thorough test. CHAIN"GO" for the...
- Sun Jan 10, 2021 5:26 pm
- Forum: acorn & bbc micro user group (abug) events
- Topic: All-day 'Virtual' Acorn session #11, Saturday 9th January, 9am - 11pm
- Replies: 28
- Views: 1297
Re: All-day 'Virtual' Acorn session #11, Saturday 9th January, 9am - 11pm
Thanks all - really enjoyed it even though I'd promised to do some DIY so was only able to make a few talks.
- Sat Jan 09, 2021 7:09 pm
- Forum: 8-bit acorn hardware
- Topic: VideoNuLA ROM Image
- Replies: 6
- Views: 341
Re: VideoNuLA ROM Image
If you're loading it into sideways RAM, here's a version that uses sideways RAM for storage rather than main memory:
- Fri Jan 08, 2021 7:43 pm
- Forum: new ideas wishlist & general chat
- Topic: what should i write next?
- Replies: 364
- Views: 36980
Re: what should i write next?
Yes with the OS RAM + 1 bank of sideways RAM you can have 79KB of RAM in use without changing any paging registers (or 63KB if you keep the OS paged in for code) - on a otherwise standard model B. This would make porting games from other 8-bit micros so much easier as they often have more available...
- Fri Jan 08, 2021 7:28 pm
- Forum: acorn & bbc micro user group (abug) events
- Topic: All-day 'Virtual' Acorn session #11, Saturday 9th January, 9am - 11pm
- Replies: 28
- Views: 1297
Re: All-day 'Virtual' Acorn session #11, Saturday 9th January, 9am - 11pm
I'm hoping to be there for a few of the sessions.
Thanks,
Rob
Thanks,
Rob
- Fri Jan 08, 2021 4:00 pm
- Forum: new ideas wishlist & general chat
- Topic: what should i write next?
- Replies: 364
- Views: 36980
Re: what should i write next?
How would it differ from the 64K B+? extra RAM as sideways RAM instead of shadow ram, like the 128K B+? Yes - 16KB sideways RAM and then possibly 16KB RAM overlaying to OS ROM too instead of the shadow RAM. As Ed points out in his thread, this would give (almost) a flat 64KB of RAM for those wantin...
- Fri Jan 08, 2021 3:03 pm
- Forum: 8-bit acorn hardware
- Topic: Alternate universe: BBC Model C (64k, console)
- Replies: 16
- Views: 746
Re: Alternate universe: BBC Model C (64k, console)
I really like this idea - as I've posted elsewhere on here recently, I think a scheme like this would have been better than the shadow RAM used in the B+ (even though I've always thought that was a clever idea). I wonder how much something like this would have added to the price in 1984/1985? It wou...
- Wed Jan 06, 2021 1:54 pm
- Forum: wanted
- Topic: WANTED - BBC Master I/O Controller CF30050
- Replies: 4
- Views: 199
Re: WANTED - BBC Master I/O Controller CF30050
I may have one as I bought a job lot of M128 chips a few years ago.
I'll have a look through my spare parts box and get back to you.
I'll have a look through my spare parts box and get back to you.
- Fri Jan 01, 2021 9:22 pm
- Forum: other vintage hardware, software and languages
- Topic: Tatung Einstein C disk image and manuals wanted
- Replies: 12
- Views: 317
Re: Tatung Einstein C disk image and manuals wanted
I put the compiler files into an Acorn SSD image and then transferred them to the CP/M system disk using the instructions here . I'm no CP/M expert but I believe it has standard routines/entry points to handle things like input, output and disk operations so the compiler will be hooking into these r...
- Fri Jan 01, 2021 8:44 pm
- Forum: other vintage hardware, software and languages
- Topic: Tatung Einstein C disk image and manuals wanted
- Replies: 12
- Views: 317
Re: Tatung Einstein C disk image and manuals wanted
After a bit of work, I managed to get the HiSoft C compiler files from here onto an Acorn Z80 co-pro system disk. The C syntax is a bit strange but, following the example in the manual, I was able to get it to build and run a simple "Hello World" program. I strongly suspect that it'll also...
- Fri Jan 01, 2021 6:11 pm
- Forum: other vintage hardware, software and languages
- Topic: Tatung Einstein C disk image and manuals wanted
- Replies: 12
- Views: 317
Re: Tatung Einstein C disk image and manuals wanted
Just did some digging and the manual here says the CP/M version will run under CP/M on the Einstein (and other Z80 machines running CP/M - so probably the Beeb with Z80 co-pro too).
- Fri Jan 01, 2021 4:39 pm
- Forum: other vintage hardware, software and languages
- Topic: Tatung Einstein C disk image and manuals wanted
- Replies: 12
- Views: 317
Re: Tatung Einstein C disk image and manuals wanted
I have the 80 column card too but haven't used it.
Is the Einstein version different to the CP/M version of the HiSoft C compiler? The CP/M version seems to be here: https://cpcrulez.fr/applications_coding ... mpiler.htm
Is the Einstein version different to the CP/M version of the HiSoft C compiler? The CP/M version seems to be here: https://cpcrulez.fr/applications_coding ... mpiler.htm
- Fri Jan 01, 2021 3:06 pm
- Forum: for sale / freebies
- Topic: VideoNuLA boards
- Replies: 189
- Views: 33470
Re: VideoNuLA boards
Thanks Jeff - glad it arrived safely and thanks for letting me know. Happy New Year to you too (and to everyone else on Stardot).
- Thu Dec 31, 2020 2:10 pm
- Forum: for sale / freebies
- Topic: VideoNuLA boards
- Replies: 189
- Views: 33470