Search found 1082 matches

by Pernod
Thu Feb 22, 2018 6:46 pm
Forum: archive requests
Topic: Instant Mini Office II
Replies: 8
Views: 946

Re: Instant Mini Office II

Just checked A14 in the 27C256s. All pin 27s (A14) are connected together and are driven from a D Flip-Flop (74LS175) so the board holds 256K of code :shock: When I get time I'll draft the schematic out . . . That would be great, thanks. I haven't tried emulating it yet as working on something else...
by Pernod
Tue Feb 20, 2018 5:46 pm
Forum: archive requests
Topic: Instant Mini Office II
Replies: 8
Views: 946

Re: Instant Mini Office II

daveejhitchins wrote:Here are the 4 x ROMs from the 'instant' Mini Office II (PCB Version). The ROM numbering is from left to right - counting from the ribbon cable end.

Thanks =D>

Looks like each 32K ROM contains 2x16K banks, each with valid ROM header.
by Pernod
Tue Feb 20, 2018 1:49 am
Forum: other vintage computer hardware, software and games
Topic: Epson HX20 - first laptop !EVER! 1981+
Replies: 10
Views: 559

Re: Epson HX20 - first laptop !EVER! 1981+

I've been in contact with Terry Stuart of http://www.classic-computers.org.nz/collection/epson-hx20.htm, and has provided a collection of BASIC programs. You'll need some way of transferring them or have to type them in though.
by Pernod
Mon Feb 19, 2018 3:40 pm
Forum: archive requests
Topic: DataGem by Gemini
Replies: 0
Views: 64

DataGem by Gemini

Does anyone have the ROMs from this DataGem board?

14890575_548961095295908_8125229979648539684_o.jpg
14876521_548960948629256_6956520053782151444_o.jpg
by Pernod
Fri Feb 16, 2018 5:13 pm
Forum: hardware
Topic: SpectROM - Speccy emulator for the Pi co-pro
Replies: 113
Views: 3393

Re: SpectROM - Speccy emulator for the Pi co-pro

The Camputers Lynx may be easier than the CPC, it also uses a 6845. Not so much software out there for it though.
by Pernod
Wed Feb 14, 2018 5:13 pm
Forum: emulators
Topic: New to Roms
Replies: 13
Views: 255

Re: New to Roms

Adopting the real-library model of a separate catalogue would have been more appropriate in my mind: something like a table of hash to structured data and files given their natural names would have been both friendlier to users and to tools if you're honestly interested in preservation rather than ...
by Pernod
Wed Feb 14, 2018 4:18 pm
Forum: emulators
Topic: New to Roms
Replies: 13
Views: 255

Re: New to Roms

One other thing, what's the different between 'bootfile' and 'YILOAD start' (using the game listed as the example, different games have different words before the word 'start' which are specific to the game in question). It could mean anything, but I'll assume 'bootfile' means it contains a !BOOT f...
by Pernod
Tue Feb 13, 2018 7:26 pm
Forum: for sale / freebies
Topic: Worth Taking a Look At
Replies: 2512
Views: 195662

Re: Worth Taking a Look At

Lardo Boffin wrote:7 beeb utility discs. Any idea what they are?

https://m.ebay.co.uk/itm/Set-of-seven-U ... 5232.l9681

Z80 2nd Processor.
by Pernod
Thu Feb 08, 2018 11:40 am
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

You may have to drag another Master into the fray, connecting them via the serial ports Yeah, but the Master in MAME needs alot of work before that can happen, so won't be happening anytime soon. From the flyers there are three variants, and currently have the Discmate and Discmonitor that form the...
by Pernod
Wed Feb 07, 2018 9:06 pm
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

daveejhitchins wrote:Here are the DiscMaster Hideaway and Wallbox ROMs

Thanks. We get a different DATA CARTRIDGE NOT FOUND screen:
0000.png

But when I insert the cartridge it just hangs, so recognises the cartridge but missing something. Investigation required ...
by Pernod
Tue Feb 06, 2018 9:35 pm
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

daveejhitchins wrote:Are you running the wall-box ROM or hideaway ROM?

I only have the hideaway ROM, are they different?
by Pernod
Tue Feb 06, 2018 7:26 pm
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

When time permits, could you take a hires photo of the control panel of the wall unit? This can be used as artwork in MAME, like the monitor surround in jsbeeb. It'd need to be well lit, no flash reflection, and photoed square on to avoid distortion. I can crop/cleanup any of the surround afterwards...
by Pernod
Tue Feb 06, 2018 6:36 pm
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

The Fender cartridge doesn't have the DATA identifier, so I added it.

The service mode now gives:
0000.png

I no longer get the DATA CARTRIDGE NOT FOUND message so progress is made :D Just a black screen so probably waiting for peripheral response.

To be continued ...
by Pernod
Mon Feb 05, 2018 12:30 pm
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

The Fender cartridge wasn't recognised unfortunately, so will need to really look into the code to see what it's looking for.

I did find a service mode though:
0003.png

0001.png
by Pernod
Sun Feb 04, 2018 9:11 pm
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

daveejhitchins wrote:Mrs H is away for a week, from the 14th. Remind me then and I'll see what I can do.

Dave H :D

Thanks, will do. I was hoping there may have been something salvageable from the existing cartridges, for an authentic retro track selection, but guess not.
by Pernod
Sun Feb 04, 2018 7:42 pm
Forum: hardware
Topic: BBC controlled CD Jukebox, great find but need the space!
Replies: 49
Views: 2794

Re: BBC controlled CD Jukebox, great find but need the space!

Hi Dave, did you ever get around to spending any more time on this?

Would really like manuals and dumps of the cartridges to progress emulation. Would be awesome to get beyond the 'DATA CARTRIDGE NOT FOUND' stage.
by Pernod
Sun Feb 04, 2018 12:16 pm
Forum: hardware
Topic: BT M2105 Version
Replies: 22
Views: 2356

Re: BT M2105 Version

I've been making a little more progress with this. I'd previously assumed the 32K RAM was paged in as SWR but it's actually paged into JIM with the usual page register at &FCFF. The startup now recognises this and initialises it, but still complains of missing voice response (speech) and printer...
by Pernod
Wed Jan 31, 2018 8:42 pm
Forum: hardware
Topic: Elk ACP3 and ACP4 Floppy Interface
Replies: 13
Views: 582

Re: Elk ACP3 and ACP4 Floppy Interface

Thanks. I had an issue with my emulation, moving the DFS and RAM to QA=0 seems to have fixed it. Also the ADFS wouldn't initialise, seems it's fussy on what is returned on reading &FCC0. I was returning the contents of the control register but I see it's not decoded so returning &FF fixed i...
by Pernod
Tue Jan 30, 2018 5:05 pm
Forum: software: other
Topic: Educational Archive not in STH
Replies: 490
Views: 46019

Re: Educational Archive not in STH

Thanks for doing a great job with these. Especially appreciate the manuals and scans of disc labels =D>
by Pernod
Tue Jan 30, 2018 12:55 pm
Forum: hardware
Topic: Elk ACP3 and ACP4 Floppy Interface
Replies: 13
Views: 582

Re: Elk ACP3 and ACP4 Floppy Interface

This is my original, hand drawn, schematic . . . Thanks. I had an issue with my emulation, moving the DFS and RAM to QA=0 seems to have fixed it. Also the ADFS wouldn't initialise, seems it's fussy on what is returned on reading &FCC0. I was returning the contents of the control register but I ...
by Pernod
Tue Jan 30, 2018 11:31 am
Forum: emulators
Topic: MAME: Tape wav images
Replies: 7
Views: 231

Re: MAME: Tape wav images

vanekp wrote:in the MAME BBC they work fine but the electron one does not see any data.

That does seems odd. I don't have an explanation right now, but will look into it.
by Pernod
Mon Jan 29, 2018 8:46 pm
Forum: hardware
Topic: Elk ACP3 and ACP4 Floppy Interface
Replies: 13
Views: 582

Re: Elk ACP3 and ACP4 Floppy Interface

Is there a schematic of the AP3/4 anywhere? Wondering whether DRQ and/or INTRQ are connected to NMI. I'm assuming they're not connected like the Plus 3.
by Pernod
Mon Jan 29, 2018 7:03 pm
Forum: emulators
Topic: MAME: Tape wav images
Replies: 7
Views: 231

Re: MAME: Tape wav images

I see the electron emulator also allows you to load tape wav files as a cassette but when you try to load it it sees no data, is this not yet implemented in the MAME Electron or is there another reason for it? I believe all computers in MAME support WAV, all formats UEF, TAP, CSW, etc. are converte...
by Pernod
Mon Jan 29, 2018 6:21 pm
Forum: emulators
Topic: MAME: Tape wav images
Replies: 7
Views: 231

Re: MAME: Tape wav images

I see the electron emulator also allows you to load tape wav files as a cassette but when you try to load it it sees no data, is this not yet implemented in the MAME Electron or is there another reason for it? Peter. Seriously! Thread hi-jack and changing my topic title! Can a mod please move to a ...
by Pernod
Mon Jan 29, 2018 3:51 pm
Forum: hardware
Topic: Voxbox Question
Replies: 10
Views: 938

Re: Voxbox Question

Has anyone reverse engineered this device? Hopefully DaveE can provide details of how it's mapped since his You're Alan Partridge uses it. It doesn't seem to map itself into &FCxx but is trapping writes to &Cxxx? The demo cassette seems to write to &C0C0 and Alan Partridge writes to &...
by Pernod
Mon Jan 29, 2018 11:16 am
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 30
Views: 804

Re: MAME: Click (and other large ROMs)

But it also has 16K SWR on-board, I have no idea how this is made accessible. Any ideas? Are you sure this isn't olverlaid to provide DFS/ADFS workspace? You could try using ADT's *MEX command. There doesn't seem to be any space to have the RAM overlaid, and both DFS and ADFS work fine without it. ...
by Pernod
Mon Jan 29, 2018 2:18 am
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 30
Views: 804

Re: MAME: Click (and other large ROMs)

Was thinking Solidisk ADFS Winchester hard drive emulation for the Elk (the Solidisk disk interface which contained the dual DFS/ADFS rom you've emulated also contained a 'Winchester' socket - basically a 1Mhz bus I think, that allowed you to hook up Solidisk's own Winchester drives). Yep, eventual...
by Pernod
Mon Jan 29, 2018 1:09 am
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 30
Views: 804

Re: MAME: Click (and other large ROMs)

Arcadian wrote:Very nice, is there a possibility of supporting an ADFS hard drive image do you think?

For Electron or BBC? Do you have something specific to support?

I attempted adding hard drives to the M512 a few months ago but didn't get too far.
by Pernod
Sun Jan 28, 2018 10:06 pm
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 30
Views: 804

Re: MAME: Click (and other large ROMs)

Since I found the Solidisk EFS ROM image...
0068.png

0067.png

0070.png

It's a 32K ROM split between both cartridge pages, one for each of DFS and ADFS. But it also has 16K SWR on-board, I have no idea how this is made accessible. Any ideas?
by Pernod
Sun Jan 28, 2018 5:11 pm
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 30
Views: 804

Re: MAME: Click (and other large ROMs)

Anyone know anything about Stop Press 64, what do I need to run it? I'm emulating what I think is the cartridge version, the 32K ROM from the Slogger haul: ELK_StopPress.jpg It has 2x16K pages which are paged with a register at &FCFA (0 or 1), whereas Click uses &FCFC. 0064.png What can I do...