Search found 2785 matches

by RobC
Sun Mar 29, 2020 4:53 pm
Forum: software: other
Topic: Ample wow
Replies: 11
Views: 524

Re: Ample wow

cmorley wrote:
Fri Mar 27, 2020 5:24 pm
Rob, Ample or the M5000?
Sorry - I didn't mean my post to sound authoritative. I just remembered reading the piece that was subsequently posted and thought it was interesting that Orlando had considered the idea.
by RobC
Fri Mar 27, 2020 4:48 pm
Forum: software: other
Topic: Ample wow
Replies: 11
Views: 524

Re: Ample wow

cmorley wrote:
Fri Mar 27, 2020 2:23 pm
Let's hope someone does because it really should be capable of some fantastic game & demo music.
I read somewhere that Orlando was looking at using it to produce music for a game but abandoned the idea as it generated too many interrupts.
by RobC
Tue Mar 24, 2020 12:56 pm
Forum: wanted
Topic: Monitor metal plinth for beeb
Replies: 3
Views: 152

Re: Monitor metal plinth for beeb

I've got two or three of these (the ones that fit over a Beeb but are just the metal plinth i.e. no drives).
by RobC
Sat Mar 21, 2020 7:10 pm
Forum: software: other
Topic: Two more Pi programs from Valentin Albillo
Replies: 11
Views: 436

Re: Two more Pi programs from Valentin Albillo

It's neat, but it's not doing anything magic. All it's doing is exploiting the fact that sin π = 0 . If you start the program with P > π, you'll notice it converges on the nearest multiple of π. Not quite - it'll generally converge to the nearest odd multiple of π unless you land bang on an even mu...
by RobC
Sat Mar 21, 2020 12:19 pm
Forum: software: other
Topic: Two more Pi programs from Valentin Albillo
Replies: 11
Views: 436

Re: Two more Pi programs from Valentin Albillo

You can visualise the convergence of these dynamical systems, where you iterate x=f(x), by plotting the function (y=x+sin(x) in this case) and the line y=x. You then choose your start point on the y=x line, draw a line vertically to meet the curve f(x) and then draw a horizontal line back to the y=x...
by RobC
Sat Mar 21, 2020 12:03 pm
Forum: hardware
Topic: VideoNuLA and 6845 questions
Replies: 13
Views: 442

Re: VideoNuLA and 6845 questions

@RobC do you mind if I implement compatibility with your VideoNuLA? Can you share the programming details? Hi - no problem with this. As others have said, hoglet has already done this using the details in the manual. I'd appreciate a name check if you release anything :D I'm happy to try to answer ...
by RobC
Thu Feb 27, 2020 12:16 pm
Forum: hardware
Topic: Acorn AKA20 We32206 Floating Point Co-Processor
Replies: 25
Views: 620

Re: Acorn AKA20 We32206 Floating Point Co-Processor

dp11 wrote:
Wed Feb 26, 2020 6:06 pm
On the RIscPC I did write the software to using the x86 card as the FPU. So if you have an 586-133MHz card that is probably the fastest FP Acorn machine.
Was this the one marketed by Warm Silence Software? I've looked around for it for years but it seems to be MIA.
by RobC
Tue Feb 25, 2020 9:51 pm
Forum: hardware
Topic: Jessop Ralph Turtle
Replies: 5
Views: 739

Re: Jessop Ralph Turtle

The Jessop Ralph will work with the Acornsoft Logo Extensions disk which is on here somewhere. I may also have the original software as I picked up a load of Logo/control software with it but many of the disks were mouldy. I have a control box and am happy to buzz out the cable and/or help with draw...
by RobC
Tue Feb 25, 2020 6:59 pm
Forum: software: new games
Topic: Moon Patrol for the beeb (New port, just starting)
Replies: 38
Views: 3492

Re: Moon Patrol for the beeb (New port, just starting)

tricky wrote:
Tue Feb 25, 2020 8:01 am
So does your BombJack ;)
Sadly, I suspect I know which one will be completed first :oops:
by RobC
Sun Feb 23, 2020 10:05 am
Forum: upcoming and recent events & exhibitions
Topic: RISC OS South West Show Saturday 22nd February 2020
Replies: 16
Views: 1045

Re: RISC OS South West Show Saturday 22nd February 2020

I'm sorry that I'll be missing this, but I have hurt my back (carrying Beeb's and CRTs) and can't face the drive. Enjoy your selves and share a pic or two for those of us their in spirit Sorry you couldn't make it tricky and hope your back improves soon. My daughter did play your Frogger for a bit ...
by RobC
Sun Feb 23, 2020 10:01 am
Forum: hardware
Topic: Clwyd Technics Colour Palette enhancer
Replies: 42
Views: 2779

Re: Clwyd Technics Colour Palette enhancer

Was it a Touchmaster tablet ? I think these have both user port and serial interfaces. I have a couple of them and may have some documentation somewhere. No idea, they were selling it under their own brand, the specs are here: https://www.4corn.co.uk/archive/showpdfs/07%20Acorn%20User%20July%201986...
by RobC
Sat Feb 22, 2020 8:14 am
Forum: upcoming and recent events & exhibitions
Topic: RISC OS South West Show Saturday 22nd February 2020
Replies: 16
Views: 1045

Re: RISC OS South West Show Saturday 22nd February 2020

Just a bump to say that the RISC OS SW Show is today at the Arnos Manor Hotel, Bristol.

There should be a few of us from here at the show so, if you're able to make it, it would be great to meet up.
by RobC
Fri Feb 21, 2020 10:28 pm
Forum: archive requests
Topic: TechnoCAD by Technomatic
Replies: 5
Views: 694

Re: TechnoCAD by Technomatic

I know this is very late but I was backing up my DC hard drive tonight and realised that I had Technocad installed on it.

Here's an ADFS disk image with the TCAD folder on it - it should work but I haven't tested it. (I'd have imaged the floppy if I had a convenient way of doing so...)
by RobC
Fri Feb 21, 2020 9:53 pm
Forum: hardware
Topic: Clwyd Technics Colour Palette enhancer
Replies: 42
Views: 2779

Re: Clwyd Technics Colour Palette enhancer

I don't appear to have any documentation on the tablet protocols but I will try to find the relevant parts of the source that deal with the tablet. Was it a Touchmaster tablet ? I think these have both user port and serial interfaces. I have a couple of them and may have some documentation somewhere.
by RobC
Fri Feb 21, 2020 5:49 pm
Forum: programming
Topic: VDU settings not initialised by MODE
Replies: 4
Views: 177

Re: VDU settings not initialised by MODE

The OS 1.2 disassembly might be a good starting point. VDU 22 ends up at CB33. Here are the lines where it's setting or doing stuff: CB3D STX &0355 ; Save current screen MODE CB43 STA &0360 ; Set current number of logical colours less 1 CB49 STA &034F ; Set bytes per character CB4F STA &0361 ; Set p...
by RobC
Fri Feb 21, 2020 3:15 pm
Forum: wanted
Topic: Millipede AlphaLock software
Replies: 1
Views: 102

Re: Millipede AlphaLock software

Not sure about gettig hold of RO 4.05 but it may still be owned/sold by Q3D.

However, it might be worth PM'ing 'Paul' on here as he's taken various bits of Millipede kits to various shows in the past.
by RobC
Tue Feb 18, 2020 6:52 pm
Forum: upcoming and recent events & exhibitions
Topic: RISC OS South West Show Saturday 22nd February 2020
Replies: 16
Views: 1045

Re: RISC OS South West Show Saturday 22nd February 2020

So, I've heard back from Richard. We've got two tables - last year each table was big enough to hold a couple of machines with monitors etc. I'll only be bringing one M128 so there should be enough space for three other setups. The room will definitely be available from 9am but may be available earl...
by RobC
Mon Feb 17, 2020 3:10 pm
Forum: upcoming and recent events & exhibitions
Topic: RISC OS South West Show Saturday 22nd February 2020
Replies: 16
Views: 1045

Re: RISC OS South West Show Saturday 22nd February 2020

cmorley wrote:
Mon Feb 17, 2020 2:13 pm
What time do we need to be there to set up Rob? Do you know how much space we have - I'm wondering what to bring?
Not had a response from Richard yet - I'll mail him tonight.
by RobC
Fri Feb 14, 2020 12:50 pm
Forum: off-topic
Topic: Regex for UK Telephone Numbers
Replies: 19
Views: 604

Re: Regex for UK Telephone Numbers

BeebMaster wrote:
Fri Feb 14, 2020 12:15 pm
I did notice it pulls in some strings of 10/11 numbers which aren't telephone numbers (eg. "0123456789.pdf" etc)
I worked on a similar problem once and used probabilities derived from order statistics to flag up cases like that.
by RobC
Thu Feb 13, 2020 2:28 pm
Forum: hardware
Topic: Resto-Modding a Master 128
Replies: 15
Views: 751

Re: Resto-Modding a Master 128

Does it show with *ROMs (sorry if you have already checked). I think that the slots can be jumpered out, but may be making that up! I think only slots 4,5,6 & 7 can be jumpered out with each jumper replacing one of the two sideways RAM banks with one of the 32KB ROM slots on the PCB. The cartridge ...
by RobC
Wed Feb 12, 2020 12:14 pm
Forum: other vintage computer hardware, software and games
Topic: ZX Spectrum next... Anybody backing ?
Replies: 179
Views: 19176

Re: ZX Spectrum next... Anybody backing ?

It's a lovely looking thing.

The keys and case seem to have a matt finish but, on the previous images I've seen, they look glossy/shiny. Is it just a trick of the light or has the finish been altered?

Thanks,

Rob
by RobC
Mon Feb 03, 2020 8:24 pm
Forum: upcoming and recent events & exhibitions
Topic: RISC OS Wakefield Show 2020
Replies: 13
Views: 994

Re: RISC OS Wakefield Show 2020

Just giving this a little bump :D

If you'd like a stand (or to share one) and haven't yet contacted the show organisers to let them know, could you please say so here so that I can confirm numbers to Chris?

Thanks,

Rob
by RobC
Thu Jan 30, 2020 1:35 pm
Forum: upcoming and recent events & exhibitions
Topic: RISC OS Wakefield Show 2020
Replies: 13
Views: 994

RISC OS Wakefield Show 2020

Chris, the Wakefield RISC OS show organiser contacted me yesterday to ask whether any Stardot/ABUG folks are interested in having some tables again at this year's show? The show is on the 18th of April: http://www.wakefieldshow.org.uk/ If you're interested in exhibiting, please reply in this thread ...
by RobC
Thu Jan 30, 2020 1:14 pm
Forum: general
Topic: Today I received.....
Replies: 5708
Views: 491846

Re: Today I received.....

The Beeb does not have a -12V supply. It is likely that the -12V supply is used only for the serial communications. So it is possible that the Beeb’s-5V output is connected to this ‘-12V’ connection. However please note that this is all just speculation... I'll test it tonight to see what voltage i...
by RobC
Thu Jan 30, 2020 12:22 pm
Forum: general
Topic: Today I received.....
Replies: 5708
Views: 491846

Re: Today I received.....

Edit: I’ve found the real manual online, which is rather more substantial than the pamphlet I got with mine: http://chrisacorns.computinghistory.org.uk/docs/Cumana/Cumana_TouchPadUG.pdf The pinout for the 8-pin DIN is actually at the end of that document. However, it lists -12V as one of the inputs...
by RobC
Wed Jan 29, 2020 9:56 pm
Forum: general
Topic: Today I received.....
Replies: 5708
Views: 491846

Re: Today I received.....

... a Cumana tablet for the BBC Micro So... no cables, no instructions, but the cassette loads a graphics program so that works. Basically no idea where to start with this. Google isn't giving my anything either. Lots of questions to answer including how to connect to Beeb from the 8pin DIN socket ...
by RobC
Tue Jan 28, 2020 1:30 pm
Forum: hardware
Topic: PiTube Direct
Replies: 6
Views: 368

Re: PiTube Direct

That's lovely - great job =D>
by RobC
Tue Jan 28, 2020 8:05 am
Forum: hardware
Topic: Palettemate / enhanced video ULA with 4096 colours
Replies: 597
Views: 65724

Re: Palettemate / enhanced video ULA with 4096 colours

Hi, I am still making them but usually to order and as time allows. Lack of time has meant that I'm not making as many as I used to so I've not sold any on eBay for a while but I'm always happy to make them up for folks on here. Unfortunately, I don't have any in stock at the moment but I am plannin...
by RobC
Sun Jan 26, 2020 9:31 pm
Forum: software: classic games
Topic: Boffin2 HELP needed on Cave 25.
Replies: 41
Views: 7693

Re: Boffin2 HELP needed on Cave 25.

Dave Footitt wrote:
Sun Jan 26, 2020 8:57 pm
Does it change the palette in various levels too? I noticed that but wasn't sure if it was supposed to or not!
Pretty sure it does although I haven't played it properly since I was a kid.