Search found 2784 matches

by Pernod
Sat Dec 04, 2021 1:19 am
Forum: archive submissions
Topic: Yes, Chancellor (1985) by Tom Tuite and Chalksoft
Replies: 18
Views: 593

Re: Yes, Chancellor (1985) by Tom Tuite and Chalksoft

lurkio wrote:
Fri Dec 03, 2021 11:24 pm
What command can I enter on my Master to get the size and/or geometry of the floppy disc?
*FREE suggests it's 1280 sectors (16 spt x 80 tracks) so I don't doubt that it's correct.
by Pernod
Fri Dec 03, 2021 10:34 pm
Forum: archive submissions
Topic: Yes, Chancellor (1985) by Tom Tuite and Chalksoft
Replies: 18
Views: 593

Re: Yes, Chancellor (1985) by Tom Tuite and Chalksoft

lurkio wrote:
Fri Dec 03, 2021 8:14 pm
ADFS .adl disc-image attached to first post in thread.
Thanks, looks good. Isn't it unusual to be single sided?
by Pernod
Fri Dec 03, 2021 7:33 pm
Forum: archive submissions
Topic: Yes, Chancellor (1985) by Tom Tuite and Chalksoft
Replies: 18
Views: 593

Re: Yes, Chancellor (1985) by Tom Tuite and Chalksoft

Do you also have an .adf image of the original floppy?
by Pernod
Mon Nov 29, 2021 7:45 pm
Forum: 8-bit acorn emulators
Topic: Speech ROM and Other Components
Replies: 33
Views: 951

Re: Speech ROM and Other Components

Back on the topic of speech, what do we know of the PHROMs in the BeebEm respository. We have (with MD5 sums): 35e9ab10bcf016bd24b4c716add009b9 phroma.bin 0fa890b2b52bf5c92a1a194f6d34be1d phromus.bin 268257afba780985b35fcdbc6f778a52 phromus.txt 0fa890b2b52bf5c92a1a194f6d34be1d vm61002.bin ef52c9126...
by Pernod
Tue Nov 23, 2021 11:52 am
Forum: other vintage hardware, software and languages
Topic: Micro-Robotics Scorpion 1986
Replies: 6
Views: 883

Re: Micro-Robotics Scorpion 1986

Peter Miller has been very helpful:
IMG_4172.jpg
image_123927839.JPG
He also has lots of documents from his time at Acorn, mainly BBC OS development notes and printouts.
by Pernod
Mon Nov 22, 2021 7:11 pm
Forum: other vintage hardware, software and languages
Topic: Micro-Robotics Scorpion 1986
Replies: 6
Views: 883

Re: Micro-Robotics Scorpion 1986

Hi Nigel Try Peter Miller who ran Micro-Robotics (Newmarket Rd, Cambridge) and invented the Scorpion: looks like he's at http://petereastern.com. I worked there briefly before uni. Thanks, I'll try to contact him. The video was interesting as it gives me an idea of how the Scorpion can be used with...
by Pernod
Sun Nov 21, 2021 2:33 pm
Forum: introduce yourself
Topic: Hello From SHeffield
Replies: 15
Views: 330

Re: Hello From SHeffield

It was the Economatics CONTROL ROM, which was produced as part of the Fischertechnik Computing Experimental kit for the Beeb. It used a particular proprietary interface which I am sure nobody has any more, but the interesting thing about it is that it contained a nice fast turtle graphics package. ...
by Pernod
Sun Nov 21, 2021 12:58 pm
Forum: introduce yourself
Topic: Hello From SHeffield
Replies: 15
Views: 330

Re: Hello From SHeffield

bennewsam wrote:
Sat Nov 20, 2021 11:15 pm
My current project is to reverse engineer a ROM I wrote in 1988.
I'm intrigued, any clues as to which ROM it is?
by Pernod
Sun Nov 21, 2021 12:05 pm
Forum: other vintage hardware, software and languages
Topic: Ernst Steiner es-65 6502 Development System from Austria
Replies: 35
Views: 2077

Re: Ernst Steiner es-65 6502 Development System from Austria

I don't know if you realized this: the data written to this address is not used, just the write to an address (F8D0-F8DF) sets the output high or low. A read should not be possible. I did wonder about the data being written, as what I'm seeing written is quite varied, but your schematic clearly sho...
by Pernod
Sat Nov 20, 2021 5:10 pm
Forum: 32-bit acorn emulators
Topic: MAME: Archimedes
Replies: 23
Views: 2958

Re: MAME: Archimedes

I don't know much (anything!) about how MAME works, but is there a way you could find the block of memory containing the RAMFS, RAM disk and poke the bytes for the .arc file into the RAM disk? No, that would be far too complex, and would need to assume that a RAM disk is already configured and has ...
by Pernod
Sat Nov 20, 2021 2:16 am
Forum: 32-bit acorn emulators
Topic: MAME: Archimedes
Replies: 23
Views: 2958

Re: MAME: Archimedes

steve3000 wrote:
Sat Nov 20, 2021 1:07 am
I guess ideally what would be nice would be a .hdf file browser on the PC side, to allow you to modify a RISC OS HDD image directly.
You should be able to do that with Disk Image Manager.
by Pernod
Fri Nov 19, 2021 11:30 pm
Forum: 32-bit acorn emulators
Topic: MAME: Archimedes
Replies: 23
Views: 2958

Re: MAME: Archimedes

So you're suggesting having something like a blank 800kb (or 1600kb) adf image, and a short script to pop the .arc file of your choosing into the adf image? Correct. You'd still be limited by the disc image maximum 1600kb, so no chance of squeezing a 2mb .arc file. You'll also need !ArcFS and/or !S...
by Pernod
Fri Nov 19, 2021 10:22 pm
Forum: 32-bit acorn emulators
Topic: MAME: Archimedes
Replies: 23
Views: 2958

Re: MAME: Archimedes

This may be a wild idea ... There's lots of Archimedes software out there that's archived as .arc files, ie. needs extracting with ArcFS or whatever. This is especially common for podule drivers, where the .arc is the contents of the accompanying floppy. Getting these .arc files into MAME is a bit o...
by Pernod
Fri Nov 19, 2021 12:07 pm
Forum: other vintage hardware, software and languages
Topic: Ernst Steiner es-65 6502 Development System from Austria
Replies: 35
Views: 2077

Re: Ernst Steiner es-65 6502 Development System from Austria

I've now made a start on implementing some of the detail, and am impressed by how complete your schematic seems to be. I'm seeing lots of writes to &F8D0, and a few other read/writes to other addresses in the &F8D4-&F8DF range. These are mapped to U7, can you explain what's going on here...
by Pernod
Thu Nov 18, 2021 6:13 pm
Forum: 8-bit acorn hardware
Topic: Reuters APM board
Replies: 14
Views: 597

Re: Reuters APM board

fordp wrote:
Wed Nov 10, 2021 10:26 am
Please find hopefully useful information attached, sent to me by the author!
Will there be any more of this manual coming? The really interesting stuff is in the later sections.
by Pernod
Thu Nov 18, 2021 2:17 pm
Forum: archive submissions
Topic: Watford hand scanner podule source code etc.
Replies: 5
Views: 220

Re: Watford hand scanner podule source code etc.

The scanner connector seems to carry 6 lines: power - can be enabled/disabled by podule data - pixel data, 1 = white clk1 - pixel clock? clk2 - bits per pixel (every 1,2,3,4), so letter mode will be same as clk1? Determines greyscale mode? yclk - y movement, connected to FIQ sync - start of new line...
by Pernod
Wed Nov 17, 2021 10:00 pm
Forum: archive submissions
Topic: Watford hand scanner podule source code etc.
Replies: 5
Views: 220

Re: Watford hand scanner podule source code etc.

With a little help from the comments in the PAL: /*******************************************************************/ /* Arc scanner podule PAL for genius geniscan 2000 */ /* new version for 1..4oodpi scanner - synchronised yclk */ /* rev.4 - allows sense of resolution bits */ /* Adress map (MEMC s...
by Pernod
Wed Nov 17, 2021 7:37 pm
Forum: 32-bit acorn hardware
Topic: Watford Electronics hand scanner
Replies: 11
Views: 509

Re: Watford Electronics hand scanner

RobC wrote:
Wed Nov 17, 2021 7:26 pm
Did you also do the Beeb version Mike?
No, that was Ian Bradbury.
by Pernod
Wed Nov 17, 2021 6:50 pm
Forum: archive submissions
Topic: Watford podule/memory, Oak podule PAL source code
Replies: 2
Views: 111

Re: Watford podule/memory, Oak podule PAL source code

Which podule is 3KHD intended for? It says company WWL.
by Pernod
Wed Nov 17, 2021 2:42 pm
Forum: 32-bit acorn hardware
Topic: Watford Electronics hand scanner
Replies: 11
Views: 509

Re: Watford Electronics hand scanner

IanJeffray wrote:
Wed Nov 17, 2021 2:14 pm
Well here's some quick phone snaps of the podule and the top of the scanner -- I didn't want to lift the board out of the scanner to image the underside as I didn't want to upset the optical encoder / camera / etc.
They're perfect, thanks.
by Pernod
Wed Nov 17, 2021 1:03 pm
Forum: archive submissions
Topic: A few boxes maybe worth saving.
Replies: 7
Views: 271

Re: A few boxes maybe worth saving.

Thanks for checking, everything sounds complete. I'm only interested in the three items I mentioned for archiving, but will take the whole lot if that's more convenient for you, and no-one else shows any interest.
by Pernod
Wed Nov 17, 2021 12:55 pm
Forum: 32-bit acorn hardware
Topic: Watford Electronics hand scanner
Replies: 11
Views: 509

Re: Watford Electronics hand scanner

The scanner arrived today and I've had a small amount of time to check it out. First, Pernod, yes, I've ripped the ROM. I was surprised it was so big... but the fantastic reason revealed itself later! Thanks. I presume you only get the scanner icon if the scanner is detected, my preliminary emulati...
by Pernod
Tue Nov 16, 2021 7:39 pm
Forum: archive submissions
Topic: A few boxes maybe worth saving.
Replies: 7
Views: 271

Re: A few boxes maybe worth saving.

There are a few items of interest here, such as Font Editor, NovaCad, and PCB Designer. Are the packages complete, do they contain the relevant floppies and ROMs? I believe PCB Designer should contain both a floppy and a ROM. Any PC128S software is not too common, especially in UK, as you're in Ital...
by Pernod
Mon Nov 15, 2021 6:54 pm
Forum: other vintage hardware, software and languages
Topic: Ernst Steiner es-65 6502 Development System from Austria
Replies: 35
Views: 2077

Re: Ernst Steiner es-65 6502 Development System from Austria

robert_o wrote:
Mon Nov 15, 2021 5:43 pm
I really hope we can emulate this machine. If there is any question please ask.
It will happen, just need to dedicate some serious time to it.

I see you've also uploaded a memory map, do we have any new info on how the ROM/RAM are banked?
by Pernod
Mon Nov 15, 2021 11:33 am
Forum: 8-bit acorn hardware
Topic: Mystery mod to BBC clock control circuit ?
Replies: 16
Views: 963

Re: Mystery mod to BBC clock control circuit ?

ChrisO wrote:
Mon Nov 15, 2021 9:58 am
Here's a dump of the PLOTMATE A3 EPROM (27128)
Thanks, this is version 1.80 whereas we previously only had 2.00.
by Pernod
Sat Nov 13, 2021 8:42 pm
Forum: 8-bit acorn hardware
Topic: A blitter for the beeb?
Replies: 205
Views: 29356

Re: A blitter for the beeb?

If there's anyone going down to the Dragon meet, or any Dragon users around these parts, I'd be interested in hooking up and seeing if we could get my BBC Basic port working on a Dragon. I always liked the look of the Dragon when they first came out! I hoping to go, but can't yet confirm. Our resid...
by Pernod
Sat Nov 13, 2021 8:16 pm
Forum: 8-bit acorn emulators
Topic: Speech ROM and Other Components
Replies: 33
Views: 951

Re: Speech ROM and Other Components

I think the next step would be to test the "Speak External" command, i.e. where the data is provided by the CPU rather than read from the serial ROM. Does anyone have a suitable test case, i.e. something that will speak something without too many keystrokes from initial loading? Try Trick...
by Pernod
Sat Nov 13, 2021 5:55 pm
Forum: 8-bit acorn emulators
Topic: MAME: How to ... ?
Replies: 98
Views: 14402

Re: MAME: How to ... ?

Any help on getting a fully-populated System 5 running? With RAM all the way up to &DFFF. I've tried various combinations of: mame acrnsys5 -bus1 32k -bus 8k or mame acrnsys5 -bus1 32k but it refuses to give me any RAM at &A000-&BFFF, it gives me RAM at &2000-&3FFF /twice/ and R...
by Pernod
Sat Nov 13, 2021 11:39 am
Forum: other vintage hardware, software and languages
Topic: Ernst Steiner es-65 6502 Development System from Austria
Replies: 35
Views: 2077

Re: es-65 6502 Development System from Austria

I also changed the title after a talk with one of the original developers. This was a development system for 6502 systems. Up to six Developers could use the es-65 to assemble programs and also (with additional hardware) do in-circuit debugging on the target! After finalizing the code an EPROM coul...
by Pernod
Fri Nov 12, 2021 3:15 pm
Forum: archive submissions
Topic: Oak SCSI software and source code
Replies: 3
Views: 260

Re: Oak SCSI software and source code

An eeprom containing FF's produces 'Warning : SCSI configuration data corrupt', but found the option to initialise it in SCSIForm.

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