Search found 1791 matches

by jms2
Thu Sep 14, 2017 5:05 pm
Forum: introduce yourself
Topic: Archie Noob. Completed Restoration and could use some help
Replies: 47
Views: 826

Re: Archie Noob. Completed Restoration and could use some help

Opinions differ on the use of Retrobrite. I've used it, and it seems to work OK. I have not tried bleach - not sure whether that works.

Some people prefer to keep their Beeb in an authentic yellowed state though.
by jms2
Tue Sep 12, 2017 11:57 am
Forum: hardware
Topic: Some question about my A3010. Adelaide & IDEtoCF
Replies: 18
Views: 428

Re: Some question about my A3010. Adelaide & IDEtoCF

Nice page, thanks for the link.

"el Acorn A3010 es una maquina muy curiosa" =D>

I like that... it makes the A3010 sound very exotic!
by jms2
Tue Sep 12, 2017 11:49 am
Forum: introduce yourself
Topic: First word plus to PC
Replies: 12
Views: 169

Re: First word plus to PC

Hello and welcome to the forum! Chances are, there probably won't be an Archimedes owner living all that close to you, so the most practical way forward would be for you to post the discs to someone who can extract the files. It would help to know how many discs are involved. I'd be happy to do a co...
by jms2
Sun Sep 10, 2017 12:01 pm
Forum: software: classic games
Topic: using beebem to save exile
Replies: 2
Views: 134

Re: using beebem to save exile

It should work as per the original game. But there is an easier way... just use 'save state' in the emulator.
by jms2
Mon Sep 04, 2017 5:33 am
Forum: introduce yourself
Topic: Archie Noob. Completed Restoration and could use some help
Replies: 47
Views: 826

Re: Archie Noob. Completed Restoration and could use some help

#-o I should have remembered to suggest formatting the disc on the Arc. In my experience it always does a better job of formatting DOS discs than a PC does.

The A3000 can't cope with 1.44Mb floppies, only later Arcs can do this.
by jms2
Sun Sep 03, 2017 7:07 pm
Forum: introduce yourself
Topic: Archie Noob. Completed Restoration and could use some help
Replies: 47
Views: 826

Re: Archie Noob. Completed Restoration and could use some help

:lol: Assuming that it works, and also assuming I'm asleep by that point, I have one further tip for you: The !IDEMgr application is fairly straightforward on the whole, but it has one facility which is a bit tricky to use. The partitioning screen uses a kind of multi-coloured bar thing to indicate ...
by jms2
Sun Sep 03, 2017 6:47 pm
Forum: introduce yourself
Topic: Archie Noob. Completed Restoration and could use some help
Replies: 47
Views: 826

Re: Archie Noob. Completed Restoration and could use some help

HardDiscs changes the number of ST506 disks you have IDEDiscs changes the number of IDE disks you have IDEFSDiscs changes the number of external IDE interface disks you have. Thanks... I was never quite clear on the distinction between the different types, ie whether there was some degree of overla...
by jms2
Sun Sep 03, 2017 6:45 pm
Forum: introduce yourself
Topic: Archie Noob. Completed Restoration and could use some help
Replies: 47
Views: 826

Re: Archie Noob. Completed Restoration and could use some help

Sorry for the idiot question, but what is the fastest way to get a file called HCCS.idemgr.arc onto a floppy format that the Archimedes will understand? It's actually not too hard, this is what you'll need to do: 1) Ideally use an Amiga type double density disc rather than an HD disc. 2) Use Linux ...
by jms2
Sun Sep 03, 2017 1:32 pm
Forum: introduce yourself
Topic: Archie Noob. Completed Restoration and could use some help
Replies: 47
Views: 826

Re: Archie Noob. Completed Restoration and could use some help

No need, mine just has a short section missing from the cable. I reckon your setup is proof that this gap is not needed - must have been a bridge to suit the original 80Mb drive. I tried an SD adapter with mine, because people say they work well. However, maybe it was due to the ribbon cable, but it...
by jms2
Sun Sep 03, 2017 12:35 pm
Forum: introduce yourself
Topic: Archie Noob. Completed Restoration and could use some help
Replies: 47
Views: 826

Re: Archie Noob. Completed Restoration and could use some help

Hello Brad Your IDE card looks exactly the same as the one I have - it is an HCCS podule. You have done everything right in terms of commands. Presumably on the desktop you see a hard disc icon at the bottom left of the screen? What happens if you click on that? If its not there, you'll possibly nee...
by jms2
Wed Aug 16, 2017 8:47 pm
Forum: hardware
Topic: Destroying Electronics with a Sharp TV
Replies: 9
Views: 354

Re: Destroying Electronics with a Sharp TV

This issue might have affected me too. I found exactly the same thing (sparking) and reported it on here. I was using a tv at the time as well.
by jms2
Mon Aug 14, 2017 8:28 pm
Forum: hardware
Topic: P.R.E.S. AP5 - Original and Re-Design
Replies: 223
Views: 10907

Re: P.R.E.S. AP5 - Original and Re-Design

I see you've got me down for a cased one Dave, but not whether I want kit or built up. It's definitely the kit please, building these projects is half the fun! :D
by jms2
Tue Aug 01, 2017 6:00 am
Forum: software
Topic: Installing the 3 jdf Wolfenstein files
Replies: 12
Views: 271

Re: Installing the 3 jdf Wolfenstein files

I think what Jon means is, have you renamed the image files? Only the last digit of the filename is used, which denotes the disc number in sets. The ID used to run the boot script comes from the metadata within the JFD. Ah, that makes sense! I knew about the last digit arrangement, but I thought th...
by jms2
Mon Jul 31, 2017 6:51 am
Forum: software
Topic: Installing the 3 jdf Wolfenstein files
Replies: 12
Views: 271

Re: Installing the 3 jdf Wolfenstein files

I think what Jon means is, have you renamed the image files? Along with all the other clever things that it does, ADFFS looks in the filename for the JASPP reference number and the runs a special !Run file which is in ADFFS.Obey with the filename being the reference number. This is effectively a pat...
by jms2
Mon Jul 31, 2017 5:33 am
Forum: software
Topic: Installing the 3 jdf Wolfenstein files
Replies: 12
Views: 271

Re: Installing the 3 jdf Wolfenstein files

Hmm... You are definitely doing it correctly. I think I had similar problems until I got hold of the correct floppy images, but I can't remember as it was well over a year ago.

Is this on a Pi or a real machine?

I'll check if mine work.
by jms2
Mon Jul 31, 2017 1:01 am
Forum: software
Topic: Installing the 3 jdf Wolfenstein files
Replies: 12
Views: 271

Re: Installing the 3 jdf Wolfenstein files

Whilst I'm not entirely sure how to do it myself, I do think I have this running on my A440 so I must have figured it out once! You do have ADFFS running? That's the first step. Then you need to set the file type of the jfD files to "floppy". Then double click the first one and select boot...
by jms2
Tue Jul 18, 2017 9:07 pm
Forum: general
Topic: ADFFS on Raspberry Pi 2
Replies: 5
Views: 237

Re: ADFFS on Raspberry Pi 2

Fixed it! It was my fault - I failed to read the ADFFS instructions closely enough. You need to put the command "disable_mode_changes" into a new file called CMDLINE.TXT... not in CONFIG.TXT. Everything now seems to work fine, except I would imagine the memory stick is probably still a bit...
by jms2
Tue Jul 18, 2017 8:12 pm
Forum: general
Topic: ADFFS on Raspberry Pi 2
Replies: 5
Views: 237

Re: ADFFS on Raspberry Pi 2

I've played around with a few more settings, but have had no more success. I tried setting hdmi_group=2 and hdmi_mode=81, which should reflect the actual resolution of my TV. This didn't help. I also tried commenting out the line "ADFFS$LCDGameModes=Y", because it seems that LCDGameModes d...
by jms2
Sun Jul 16, 2017 10:23 pm
Forum: general
Topic: ADFFS on Raspberry Pi 2
Replies: 5
Views: 237

Re: ADFFS on Raspberry Pi 2

Yes, I think so, that's the 'disable_mode_change’ setting?
by jms2
Sun Jul 16, 2017 6:20 pm
Forum: general
Topic: ADFFS on Raspberry Pi 2
Replies: 5
Views: 237

Re: ADFFS on Raspberry Pi 2

A bit of progress - I tried changing the monitor type to "Other\Generic" and now I can successfully get into Modes 12 & 15. I thought this had solved the problem, but games still seem not to work.

I did try an original type Pi (using the same Risc OS image) but this didn't help.
by jms2
Sun Jul 16, 2017 11:56 am
Forum: general
Topic: ADFFS on Raspberry Pi 2
Replies: 5
Views: 237

ADFFS on Raspberry Pi 2

I've been using ADFFS for a while on real hardware, but I've noticed that all the recent releases seem to focus quite a bit on improving functionality with the Pi - so I decided to dust off the Pi and see what I've been missing. Mine is a Pi 2 connected to a digital LCD TV via HDMI. I downloaded RC1...
by jms2
Tue Jun 20, 2017 9:23 pm
Forum: hardware
Topic: Pegasus, New AP5 and New AP3/4 Painted Metal case
Replies: 18
Views: 522

Re: Pegasus, New AP5 and New AP3/4 Painted Metal case

Dave I'd like a Pegasus case, plus ideally an AP5 case. Preferably in beige. Regarding powder coating, is this necessarily the best choice? Would it be cheaper to supply them in bare metal, then people could spray paint them any colour they like? One other thing, how big is the AP5 case? I might wan...
by jms2
Thu Jun 01, 2017 9:16 pm
Forum: hardware
Topic: Upgrades to make Master out of an Electron?
Replies: 14
Views: 637

Re: Upgrades to make Master out of an Electron?

I'd always wondered how the MRB worked. There doesn't seem to be a schematic anywhere.
by jms2
Thu Jun 01, 2017 5:26 am
Forum: hardware
Topic: 80 column teletext
Replies: 24
Views: 1212

Re: 80 column teletext

That's incredible, well done!! =D>

Is there a way to integrate this into a Beeb, or is it just a very cool experiment?
by jms2
Wed May 31, 2017 7:40 pm
Forum: off-topic
Topic: Poisoning Young Minds
Replies: 14
Views: 832

Re: Poisoning Young Minds

richmond62 wrote:I chose this title for this posting because most people I meet (mainly parents of children I teach)
have a very restricted idea of what constitutes learning to program computers

That's surprising, and disappointing to hear.
What do they expect you to teach?
by jms2
Wed May 31, 2017 7:39 pm
Forum: hardware
Topic: Simple Electron flash cartridge with 39SF010 + 74HCT00
Replies: 53
Views: 2054

Re: Simple Electron flash cartridge with 39SF010 + 74HCT00

I'm curious about your intention to use all 64k of the Electron's address space as RAM. How are you planning to deal with conflicts with the existing RAM and ROM in the system? Usually the only part of the address space it's safe to use is the sideways portion (&8000-&BFFF) and some parts o...
by jms2
Wed May 31, 2017 5:15 pm
Forum: hardware
Topic: Simple Electron flash cartridge with 39SF010 + 74HCT00
Replies: 53
Views: 2054

Re: Simple Electron flash cartridge with 39SF010 + 74HCT00

One further thought on the subject of ram timings... There is quite a lot of advice about this on the web (in relation to the 6502) and everyone agrees that you have to provide some kind of gating using the clock to make sure that spurious writes don't occur. However, each person seems to have their...
by jms2
Tue May 30, 2017 12:41 pm
Forum: hardware
Topic: Simple Electron flash cartridge with 39SF010 + 74HCT00
Replies: 53
Views: 2054

Re: Simple Electron flash cartridge with 39SF010 + 74HCT00

Superb answers guys! That closes out the discrepancy between the apparent 60ns requirement and Dave H's findings that Phi0 works OK. I had gone to the trouble of superimposing screen grabs of the 6502's timing diagram and the one for the static ram chip I'm using. Whilst this was a useful exercise i...
by jms2
Mon May 29, 2017 12:45 pm
Forum: hardware
Topic: Simple Electron flash cartridge with 39SF010 + 74HCT00
Replies: 53
Views: 2054

Re: Simple Electron flash cartridge with 39SF010 + 74HCT00

One other thing, going back to RAM timings... I've been reading the posts relating to timings closely, and I note the need for the RAM to hold the data for 60ns after the end of the Phi0 high period. As you've noted, this could pose a problem if #CE is gated with Phi0, because most srams don't hold ...
by jms2
Mon May 29, 2017 8:24 am
Forum: hardware
Topic: Simple Electron flash cartridge with 39SF010 + 74HCT00
Replies: 53
Views: 2054

Re: Simple Electron flash cartridge with 39SF010 + 74HCT00

...found DesignSpark too difficult, for instance Have you totally given up with DesignSpark? I did EUP in the latter and you're welcome to the files if it would help? Hello Martin, sorry I didn't spot your post as it snuck in just ahead of myelin's. I haven't necessarily given up on Designspark (ne...

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