Search found 538 matches

by simoni
Mon Aug 03, 2020 7:29 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

I'm not a lawyer either; but the statement is pretty clear. Here's a nice PDF with a plain English FAQ on page 4: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/375956/Libraries_Archives_and_Museums.pdf I'm sure that the CfCH are well aware of this.
by simoni
Mon Aug 03, 2020 6:55 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

Yes, I'm sure you do respectfully think that you know more about the subject than I. However you might want to read the text of the copyright exemptions that you so readily refer to; specifically the bit that says "The law requires that the work to be copied for preservation purposes must be an item...
by simoni
Mon Aug 03, 2020 6:07 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

Because I state the archive isn't accessible and you say it is. You imply that my concerns are invalid as we all have access to some magical resource which is just a 'quick email to the right person away' - which isn't the case. Last time I checked, retired BBC employees aren't given the keys to the...
by simoni
Mon Aug 03, 2020 5:32 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

Clearly I need to be more terse:

Are we talking about:

a) the archive (i.e. National/BBC Archive) copies of the PAL Domesday material in a lossless format

or

b) not (a) but something else - like the jpgs I mentioned.

?
by simoni
Mon Aug 03, 2020 4:16 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

Sounds like progress; good for Andy :) By 'ingested images' are we talking about the 696x522 images (lossy compressed with jpeg) made for Domesday Reloaded, or the full PAL images from the tapes?
by simoni
Mon Aug 03, 2020 2:52 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

I don't understand what you mean by "that no one can use"
Clearly we have wildly different ideas of what 'usable' actually means. No matter; since we are drifting totally off topic we'll just have to agree to disagree (again).
by simoni
Mon Aug 03, 2020 1:11 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

I believe the expression coined in the 15th century is "a bird in the hand is worth two in the bush". What 'we' don't have is little advantage compared to the thing we do. Also - there is the argument - which I have placed in front of you time and time again - that Domesday is just two of the AIV di...
by simoni
Mon Aug 03, 2020 12:37 pm
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

Great thing about RF laserdisc preservation is that you can decode and decode - so the current worth of the chroma-decoder in ld-decode vs one no one has access too is a moot point; once/if it's implemented, you simply run ld-decode again and benefit. Recovering the still pictures from the laserdisc...
by simoni
Mon Aug 03, 2020 10:43 am
Forum: 8-bit acorn emulators
Topic: BBC Domesday Emulator
Replies: 28
Views: 798

Re: BBC Domesday Emulator

I've emailed Andy Finney and the domesday86 folk The DD86 crew is here to help :) I've sent you an email with the details arj. As for 3D support in the PAL transform decoder; it's been implemented - I'd have to check with the dev about the details, but all of the GPLv3 source code is of course avai...
by simoni
Mon Jul 27, 2020 2:09 pm
Forum: past all-day virtual ABugs
Topic: All-day 'Virtual' Acorn session #6, Saturday 1st August 2020, 9am - 11pm [NOW FULL!]
Replies: 105
Views: 3672

Re: All-day 'Virtual' Acorn session #6, Saturday 1st August 2020, 9am - 11pm [NOW FULL!]

I see that I'm missing a summary for the Domesday86 part II talk... As I mentioned during the last talk, this one will be all about the magic of ld-decode with an in-depth dive into the world of LaserDiscs, how they work and what it takes to build a software defined player. The original inventor of ...
by simoni
Sun Jul 26, 2020 4:49 pm
Forum: past all-day virtual ABugs
Topic: All-day 'Virtual' Acorn session #6, Saturday 1st August 2020, 9am - 11pm [NOW FULL!]
Replies: 105
Views: 3672

Re: All-day 'Virtual' Acorn session #6, Saturday 1st August 2020, 9am - 11pm

Can you add Ian Smallshire to the list please. He's on a Domesday86 mission for me at the moment and can't do it himself :)

Username: ianSmalls
by simoni
Sat Jul 11, 2020 4:20 pm
Forum: 8-bit acorn hardware
Topic: And then there were - 4!
Replies: 12
Views: 688

Re: And then there were - 4!

That's great; thanks for dumping it - good to know it matches :)
by simoni
Tue Jul 07, 2020 9:13 am
Forum: 8-bit acorn hardware
Topic: And then there were - 4!
Replies: 12
Views: 688

Re: And then there were - 4!

That's a really kind offer on the discs - but I doubt I'd be able to read them without the original player; so (since I'm based in Sweden and the postage wouldn't be super-cheap) it's probably best that I decline. I look forward to the ROM image though :) The IVIS software was supplied on floppy dis...
by simoni
Tue Jul 07, 2020 5:50 am
Forum: 8-bit acorn hardware
Topic: And then there were - 4!
Replies: 12
Views: 688

Re: And then there were - 4!

LDP-1500P makes sense; it was a PAL only Sony from exactly the right time. There is a PAL version of Dragon's Lair too; so the LDP can be used for that (although I don't believe that was the original player used in the PAL cabinets). If it was used in schools it was likely for IVIS discs. The Centre...
by simoni
Mon Jul 06, 2020 9:38 pm
Forum: 8-bit acorn hardware
Topic: And then there were - 4!
Replies: 12
Views: 688

Re: And then there were - 4!

It looks very much like a softoption setup, so I'm guessing the laserdisc player was a VP410? It would be great if you could let me know the type of player and provide a copy of the ROM(s) - I'd like to add the info to the Domesday86 website. If the original system came with any laserdiscs it would ...
by simoni
Mon Jul 06, 2020 2:14 pm
Forum: 8-bit acorn hardware
Topic: BeebSCSI 7_7
Replies: 236
Views: 14128

Re: BeebSCSI 7_7

Yes, there is a new design on github. The case is better looking and also slides together (doesn't need screws like the old one). You can print it in both single and multimaterial. It is designed for a right-angle connector though. The OpenSCAD source code is GPLv3; so you can clone it, play with it...
by simoni
Sat Jul 04, 2020 5:53 am
Forum: acorn atom and acorn system series
Topic: TimeData MZ163 User manual and schematic
Replies: 2
Views: 788

Re: TimeData MZ163 User manual and schematic

It may have taken a few years before it was useful; but eventually it was :)

Glad it helped with the upgrade!
by simoni
Thu Jun 18, 2020 7:49 am
Forum: 8-bit acorn hardware
Topic: New SCSI Host Adaptor
Replies: 91
Views: 3884

Re: New SCSI Host Adaptor

It really depends on what you want to do. You can fork a repo (like BeebSCSI) then branch it; that way if the underlying repo changes you can merge it with you branch. You can have a forked repo as part of your main repo to... so you treat BeebSCSI like a library 'under' your own code. Generally, if...
by simoni
Sat May 16, 2020 1:41 pm
Forum: 8-bit acorn hardware
Topic: Beeb-Bot - A fully 3D printable clone of the BBC Buggy
Replies: 6
Views: 401

Re: Beeb-Bot - A fully 3D printable clone of the BBC Buggy

It's hard to say as I printed lots (and lots) of prototype parts working towards the finished thing. It's not as much as you'd think though since all the component parts are quite small, so I'd say less than a quarter of a reel of each colour (grey and red - for black, even less). You could run it t...
by simoni
Sat May 16, 2020 11:11 am
Forum: 8-bit acorn hardware
Topic: Beeb-Bot - A fully 3D printable clone of the BBC Buggy
Replies: 6
Views: 401

Re: Beeb-Bot - A fully 3D printable clone of the BBC Buggy

Next step: a BBC-driven 3D printer?
Or... a 3D printed BBC driving a 3D printed printer printing a Beeb-Bot :)

Glad you liked the project :)
by simoni
Sat May 16, 2020 9:22 am
Forum: 8-bit acorn hardware
Topic: Beeb-Bot - A fully 3D printable clone of the BBC Buggy
Replies: 6
Views: 401

Beeb-Bot - A fully 3D printable clone of the BBC Buggy

This is not a BBC Buggy and contains no parts from it… This is a Beeb-Bot – a fully open-source, open-hardware 3D printable clone. All parts are backwardly compatible with the original BBC Buggy; you can either print one from scratch (like the one pictured) or use a combination of original and new p...
by simoni
Tue May 05, 2020 4:10 am
Forum: 8-bit acorn hardware
Topic: BeebSCSI 7_7
Replies: 236
Views: 14128

Re: BeebSCSI 7_7

If you are formatting and filling with a data byte, you might want to look at what the SD card handling code is really doing: https://github.com/simoninns/BeebSCSI/blob/master/BeebSCSI_AVR/BeebSCSI_AVR/filesystem.c#L1131 The FAT action on the SD card is really only 'allocating' space, it doesn't act...
by simoni
Sun May 03, 2020 5:31 am
Forum: 8-bit acorn hardware
Topic: BeebSCSI 7_7
Replies: 236
Views: 14128

Re: BeebSCSI 7_7

The fact that the debug output is garbled is not good... Also the following error shows the SCSI emulation is being told to seek beyond the available data: Sat,02 May 2020.21:57:17.492953 File system: filesystemOpenLunForRead(): ERROR: Unable to fast seek to required sector in LUN image file! Either...
by simoni
Sat May 02, 2020 11:47 am
Forum: 8-bit acorn hardware
Topic: BeebSCSI 7_7
Replies: 236
Views: 14128

Re: BeebSCSI 7_7

Not sure about 'DOS plus', but I have a M512 running GEM with BeebSCSI that I installed using the original floppies. Works without issue. IIRC the 'image' is an overlay file in the ADFS partition, so if it works with ADFS there shouldn't be any issues. Not sure what to suggest though unless you can ...
by simoni
Tue Apr 21, 2020 4:34 am
Forum: 8-bit acorn hardware
Topic: New SCSI Host Adaptor
Replies: 91
Views: 3884

Re: New SCSI Host Adaptor

My guess would be that the additional pull-up/pull-down is causing the 3v3 CPLD output to swing between 0-5V rather than 0-3v3 - if the connected logic is TTL it shouldn't make any difference since the centre-point is 2v5. If the connected logic is CMOS though, 2v5 isn't enough as you need 3v5 to sw...
by simoni
Mon Apr 20, 2020 6:45 pm
Forum: 8-bit acorn hardware
Topic: BBC buggy economatics
Replies: 2
Views: 218

Re: BBC buggy economatics

If I remember right, the schematics are in the documentation. I scanned all of it and uploaded it a while back:

viewtopic.php?f=3&t=11648
by simoni
Sun Apr 19, 2020 8:31 pm
Forum: 8-bit acorn hardware
Topic: BeebSCSI VFS Adapter issue
Replies: 9
Views: 530

Re: BeebSCSI VFS Adapter issue

If you flip the PCB over, you'll notice it says "This side should be facing the Power Supply - DO NOT REVERSE!". If that isn't obvious, I doubt an arrow would help. It's generally an issue with SIL connectors that aren't keyed. The design is open-hardware so if you'd like to go through the expense o...

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