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by jms2
Sun Jun 17, 2018 9:26 pm
Forum: software
Topic: Black Angel
Replies: 17
Views: 1321

Re: Black Angel

That might be tricky, as I don't know anyone with an Amiga. However, I was planning to use ADFFS to image the disks, surely that will do?
by jms2
Sun Jun 17, 2018 8:42 pm
Forum: software
Topic: Black Angel
Replies: 17
Views: 1321

Re: Black Angel

So far I've found time to read the manual and try out the discs to see if they still work. The good part is that the discs do work, as far as I've been able to test. :D The less good part relates to playing the game itself, which gave me a bit of a flashback to 1992 and reminded me why I never playe...
by jms2
Fri Jun 15, 2018 10:03 pm
Forum: software
Topic: Black Angel
Replies: 17
Views: 1321

Re: Black Angel

Good news ... I have found that I have both the discs and the manual!

I will see if I can image the discs and will scan the manual. Might take me a while though.
by jms2
Fri Jun 08, 2018 2:24 pm
Forum: hardware
Topic: Monitors
Replies: 41
Views: 631

Re: Monitors

The Amazon listing says this: Connectors: 1 x VGA 15-pin male on one end - 1 x S-Video mini-DIN 4-pin connector and 3 x RCA composite connector on other end. • This VGA to S-Video + 3 RCA Adapter connections your PC / Laptop to LCD projector, HDTV, or any other display devices. Note: This adapter wi...
by jms2
Fri Jun 01, 2018 7:26 am
Forum: stardot.org.uk
Topic: https certificates?
Replies: 69
Views: 3987

Re: https certificates?

Hang on a minute... as of right now, it's changed to a green padlock on almost all pages! Have you changed something? This doesn't apply to every single page though. The thread Re:BeebSCSI mini shows a white circle with a !, meaning 'connection not fully secure'. This applies to pages 3-5 of that th...
by jms2
Fri Jun 01, 2018 6:16 am
Forum: stardot.org.uk
Topic: https certificates?
Replies: 69
Views: 3987

Re: https certificates?

'your connection to this site is not secure'
by jms2
Thu May 31, 2018 9:44 pm
Forum: stardot.org.uk
Topic: https certificates?
Replies: 69
Views: 3987

Re: https certificates?

Wiping the cache has helped. I no longer get all the warnings, just a red triangle symbol with a ! in it. =D>
by jms2
Thu May 31, 2018 11:54 am
Forum: stardot.org.uk
Topic: https certificates?
Replies: 69
Views: 3987

Re: https certificates?

I'm getting these warnings as well, on my Android tablet. I've just installed the latest version of Chrome and if anything, the warnings have become even more dire!

In Windows, and on my iPhone, everything seems OK though.
by jms2
Mon May 28, 2018 8:56 am
Forum: hardware
Topic: Electron with sideways ram?
Replies: 27
Views: 767

Re: Electron with sideways ram?

I think they are:
LS00 - not gates
LS33 - nor gates
LS682 - 8 bit comparator

I wonder how the comparator is being used in this context?
by jms2
Sat May 26, 2018 9:59 pm
Forum: hardware
Topic: Gotek Flashfloppy not recognising blank ADFS discs?
Replies: 7
Views: 219

Re: Gotek Flashfloppy not recognising blank ADFS discs?

Not experimented with *free yet, but adding padding to my unrecognised images has fixed them. :D

I did also make a file containing 640*1024 zeros, with a .ADL extension, with a view to formatting it, but this was rejected with err 31 again.
Maybe it needs .ADF?
by jms2
Sat May 26, 2018 7:21 pm
Forum: hardware
Topic: Gotek Flashfloppy not recognising blank ADFS discs?
Replies: 7
Views: 219

Re: Gotek Flashfloppy not recognising blank ADFS discs?

Non-padded DFS images do mount and catalogue correctly though. Does this mean that they have very little free space on - ie they never grow to the right size?

Would make sense if so, because all the other DFS and ADFS images that I can find on the Gotek are fully padded.
by jms2
Sat May 26, 2018 2:43 pm
Forum: hardware
Topic: Gotek Flashfloppy not recognising blank ADFS discs?
Replies: 7
Views: 219

Re: Gotek Flashfloppy not recognising blank ADFS discs?

No they are only 2k in size. They are just whatever Elkulator and ADFS explorer put out. But I’m sure you are onto something!

This doesn’t seem to apply to DFS?
by jms2
Sat May 26, 2018 1:10 pm
Forum: hardware
Topic: Gotek Flashfloppy not recognising blank ADFS discs?
Replies: 7
Views: 219

Gotek Flashfloppy not recognising blank ADFS discs?

I've been loading more and more disk images onto my Gotek and realised it would be handy to put some blank ones on there as well. Blank DFS images seem to work fine, but I've encountered some problems with blank ADFS images. When I try to select them, Flashfloppy reports "ERR 31". I tried at first w...
by jms2
Wed May 23, 2018 7:56 am
Forum: archive submissions
Topic: Electron Exile DFS image - fixed
Replies: 4
Views: 767

Re: Electron Exile DFS image - fixed

While finding useful disc images to go onto my Gotek, I found the "Exile-fixed" image and couldn't remember what is was. Then I found this thread, and noticed that it's not clear whether password-free version of Exile can load savefiles correctly. Well, I've just checked, and it can't. So I've merge...
by jms2
Tue May 22, 2018 4:36 pm
Forum: hardware
Topic: Master Ram Board or Second Processors.
Replies: 4
Views: 390

Re: Master Ram Board or Second Processors.

It's a good question, and one which Electron owners faced back in the 80s. The MRB was the winner back then because it was cheaper, easier to understand for the casual user, fitted inside the case, and offered a Turbo mode which gave some speed benefit without breaking compatibility too much. These ...
by jms2
Mon May 21, 2018 4:48 pm
Forum: hardware
Topic: Cumana CS400 40/80 switchable disk drive
Replies: 4
Views: 326

Re: Cumana CS400 40/80 switchable disk drive

Cumana just put proprietary drives into cases. You need to figure out who actually made the drive, and then try Googling that.
by jms2
Sat May 19, 2018 7:22 pm
Forum: emulators
Topic: Video Timing
Replies: 58
Views: 1803

Re: Video Timing

The Sony TV also has another problem with BBC machines, which is unrelated to Frogger. It sometimes can't do the sub-pixel antialiasing in Mode 7, displaying a sort of checkerboard effect instead. This tends to go away if you blank the screen (eg by changing mode).
by jms2
Sat May 19, 2018 5:21 pm
Forum: emulators
Topic: Video Timing
Replies: 58
Views: 1803

Re: Video Timing

Good news - I've managed to solve this problem! :D And I think it does shine some light on the video timing issue actually. All I did was switch to a different TV (a Samsung Syncmaster 510MP). On this other TV everything works fine. So this means that the first TV (a Sony) wasn't entirely happy with...
by jms2
Fri May 18, 2018 11:02 am
Forum: hardware
Topic: Cartridge slots
Replies: 8
Views: 424

Re: Cartridge slots

Do they sit on the 2Mhz(?) data bus? Yes they do. I'm not very familiar with the 1MHz bus, so I'm sure others can do a better job of explaining, but the cartridge slots provide access to the processor's address and data buses, plus Phi0, IRQ and NMI lines etc. I think this makes the cartridge inter...
by jms2
Thu May 17, 2018 5:49 am
Forum: emulators
Topic: Video Timing
Replies: 58
Views: 1803

Re: Video Timing

Good point, that makes sense! My Master does boot up into a shadow ram mode. Explains why it worked OK in Master mode on BeebEm. EDIT: I have reconfigured it to boot to a non-shadow mode, but the problem persists. Definitely works OK in BeebEm (in Master mode). I checked the value of HIMEM to be cer...
by jms2
Wed May 16, 2018 9:43 pm
Forum: emulators
Topic: Video Timing
Replies: 58
Views: 1803

Re: Video Timing

I don't know if this is in any way related to the video timing issues being discussed, but I tried out Frogger on my real Master today using the Gotek interface to load it. The results were odd: the screen display is perfect, and the game seems to play ok, but I am seeing no screen updates at all! i...
by jms2
Fri May 11, 2018 5:52 pm
Forum: software: classic games
Topic: AP6 rom incompatibility with Codename Droid
Replies: 3
Views: 259

Re: AP6 rom incompatibility with Codename Droid

Good point about disabling the Plus1, I’ll try that.
by jms2
Thu May 10, 2018 10:31 pm
Forum: software: classic games
Topic: AP6 rom incompatibility with Codename Droid
Replies: 3
Views: 259

AP6 rom incompatibility with Codename Droid

I have just discovered a rather odd incompatibility betwen Codename Droid and the AP6 rom. With the rom inserted, the game runs, but black background tiles are filled up with mostly-white but also slightly randomised corruption. I'm talking about the ADFS disc version. I'm not suggesting that this i...
by jms2
Thu May 10, 2018 11:36 am
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 61
Views: 2998

Re: My final unanswered Exile question

I struggle to imagine how it could be much better than it already is. However I do have a practical suggestion, which is whether it could be ported to the 6502 second processor. This would free up a lot of memory which could be used for more sound samples perhaps?
by jms2
Thu May 10, 2018 11:33 am
Forum: hardware
Topic: Gotek on Electron
Replies: 14
Views: 872

Re: Gotek on Electron

The FAT sorter did the trick, thanks. My wife always said I needed to sort my FAT, so she ought to be pleased as well. 8) Ray, I've been using your menu system and it's excellent. I've made a small improvement to the ADFS version though - it prompts to load from drive 1 or 2, but if you have a hardd...
by jms2
Tue May 08, 2018 10:24 pm
Forum: hardware
Topic: Gotek on Electron
Replies: 14
Views: 872

Re: Gotek on Electron

Aha! Thanks, never heard of those before but it makes sense.
by jms2
Tue May 08, 2018 9:12 pm
Forum: hardware
Topic: Gotek on Electron
Replies: 14
Views: 872

Re: Gotek on Electron

Got mine working - I really enjoyed putting it all together! In the end I have used an old BlackBerry USB charger. I don't know to what extent it is regulated, but it seems to work well with the Gotek. The only real problem I have encountered relates to how the folders on my USB stick appear on the ...
by jms2
Sat May 05, 2018 11:17 am
Forum: off-topic
Topic: Windows 10....
Replies: 158
Views: 12256

Re: Windows 10....

Get a Mac :) Expensive but that is what you are asking ‘Unix where you don’t need to use command line’. I had the same thought myself a little while ago. However when I wandered over to the Macs in the computer shop, I had to pick myself up off the floor when I saw the prices. :shock: Maybe a used ...
by jms2
Sat May 05, 2018 6:02 am
Forum: off-topic
Topic: Windows 10....
Replies: 158
Views: 12256

Re: Windows 10....

I've got a Win7 laptop which is basically fine, and I have resisted "upgrading" to Win10 for all the above reasons. However, it will inevitably break in the end, which means I will have to make a tough decision - buy a Windows 10 laptop or go for Linux. I have got Lubuntu 14 installed as a dual boot...
by jms2
Wed May 02, 2018 10:05 pm
Forum: software: classic games
Topic: My final unanswered Exile question
Replies: 61
Views: 2998

Re: My final unanswered Exile question

it has just occurred to me that the algorithm matches the plot of the novella: in the story, Triax adapts the natural cave system to his own evil plans, whereas the map generation system allows local manipulation of a "naturally" generated map.

It's genius.