Search found 1276 matches

by Pernod
Sat May 12, 2018 12:53 am
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 42
Views: 2155

Re: MAME: Click (and other large ROMs)

The problem is, the Z80 Client ROM contains some 6502 code that is uploaded to the host, and this hard codes the address of the tube data register at &FEE5. So you need to patch the client ROM (in 2 places) to use the Elk address of &FCE5. Thanks for the explanation, I'd wrongly assumed it was caus...
by Pernod
Fri May 11, 2018 6:29 pm
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 42
Views: 2155

Re: MAME: Click (and other large ROMs)

I've emulated the AP5. With a Z80 attached it'll load CP/M but won't DIR a disc, tried with Peg400 and AP4. Anyone know what's expected to work with the Electron Tube interface? 0145.png 0146.png 0147.png Is there a ROM image from the original Acorn Tube interface? I'm using the one from the AP5 'Tu...
by Pernod
Wed May 09, 2018 10:28 am
Forum: archive requests
Topic: BOS ROM for PMS B2P
Replies: 14
Views: 1505

Re: BOS ROM for PMS B2P

Does anyone have E2P Hi-Wordwise Plus?
by Pernod
Wed May 09, 2018 9:02 am
Forum: other vintage computer hardware, software and games
Topic: UK101 Hardware Modifications Archive
Replies: 24
Views: 2067

Re: UK101 Hardware Modifications Archive

tinplatepete wrote:Finally found time to upload this, as promised an original unmodified copy Premier Publications BASIC X addressed 9800, I need to thank fellow UK101 owner Andy for letting me have a copy of this also letting me upload it.
Thanks =D>
by Pernod
Tue May 08, 2018 9:20 pm
Forum: emulators
Topic: MAME: Click (and other large ROMs)
Replies: 42
Views: 2155

Re: MAME: Click (and other large ROMs)

I'd like to support the PMS E2P-6502, looks like we have the ROM and floppy versions of the system software.

What's the difference between the PMS E2P and the DIY version in ETI?
by Pernod
Sun May 06, 2018 11:13 pm
Forum: software & utilities for the pc, mac or unix
Topic: Wires? Pah.....
Replies: 812
Views: 109784

Re: Wires? Pah.....

Slo wrote:Can upurs send a 640 ADFS file for an elk or beeb to create on a physical floppy?
No, UPURS is DFS only.
by Pernod
Sat May 05, 2018 5:21 pm
Forum: archive requests
Topic: Watford Beeb Speech Synthesiser
Replies: 9
Views: 775

Re: Watford Beeb Speech Synthesiser

SteveF wrote:I used to have one of these (well, I still do, *somewhere*!) and I have a slightly different ROM image.
Thanks, I'll take a closer look. If you ever find it I'd appreciate some good photos of the board to verify my assumptions.
by Pernod
Fri May 04, 2018 8:36 pm
Forum: emulators
Topic: MAME: Speech
Replies: 17
Views: 974

Re: MAME: Speech

After finding the ROM for the Beeb Speech Synthesizer from Watford it was very easy to implement, considering no schematic or even a photo of the board. It has a SP0256-AL2 connected to PB0-PB6 to speak allophones. PB7/PB8 specify high/low intonation. The CB1/CB2 lines are connected to LRQ/SBY. It s...
by Pernod
Fri May 04, 2018 12:22 am
Forum: archive requests
Topic: Watford Beeb Speech Synthesiser
Replies: 9
Views: 775

Re: Watford Beeb Speech Synthesiser

dv8 wrote:This looks like the correct ROM (I don't own the hardware so can't test it).
Thanks, looks good. Did you find it elsewhere, or from your own collection?
by Pernod
Thu May 03, 2018 5:24 pm
Forum: archive requests
Topic: Watford Beeb Speech Synthesiser
Replies: 9
Views: 775

Watford Beeb Speech Synthesiser

Does anyone have a Watford Beeb Speech Synthesiser?

It's a speech synthesiser that connects to the userport and requires a ROM. I'm specifically looking for the ROM to potentially emulate it. Seems quite rare!
by Pernod
Thu May 03, 2018 12:07 pm
Forum: off-topic
Topic: New laptop
Replies: 14
Views: 735

Re: New laptop

To get even more serious, I would suggest, when they get a little bigger, not to buy a leapfrog tablet or other proprietary kids tablet? They are quite cheap but the software is terribly expensive for what it is, and they try and lock you in to their ecosystem. Far better to get a tablet (apple or ...
by Pernod
Wed May 02, 2018 8:57 pm
Forum: emulators
Topic: MAME: Mouse, and other pointing devices
Replies: 21
Views: 1262

Re: MAME: Mouse

I implemented the SmallyMouse2 method and it fixed my issues with the RB2 Tracker Ball software (Icon Art Master and MEDL Trackerball Utilities), both now work as expected. It looks like it actively tries to detect a track ball vs a mouse, and this seems to change how it interprets the signals: 2B8F...
by Pernod
Tue May 01, 2018 9:02 pm
Forum: emulators
Topic: MAME: Mouse, and other pointing devices
Replies: 21
Views: 1262

Re: MAME: Mouse

Since the AMX mouse is supposed to work with GEM on the M512, and it currently doesn't, I'm going to look more at how SmallyMouse2 is implemented. I shouldn't need a different implementation depending on which software is trying to read the mouse. I also added the Marconi RB2 with inconsistent resul...
by Pernod
Tue May 01, 2018 2:22 pm
Forum: emulators
Topic: MAME: Mouse, and other pointing devices
Replies: 21
Views: 1262

Re: MAME: Mouse

Other than experimentation you could disassemble the code the processes the interrupt and count cycles - that would gives you fastest response. Or, you could try to work out what the fastest rate could be from the mouse hardware but I wonder if that depends on how fast the use moves it across the d...
by Pernod
Mon Apr 30, 2018 6:43 pm
Forum: emulators
Topic: MAME: Mouse, and other pointing devices
Replies: 21
Views: 1262

Re: MAME: Mouse

I don't know about the others, but 128 probably comes from scan line timing. I'm referring to the emulation that polls the mouse inputs to generate interrupts whilst the mouse is moving, not the polling of PB from the machine. For the Compact should the M512 mouse implementation work, with extra bu...
by Pernod
Mon Apr 30, 2018 11:29 am
Forum: general
Topic: Today I received.....
Replies: 4792
Views: 327442

Re: Today I received.....

Lardo Boffin wrote:Got this from eBay - looked interesting. One of many beeb games I had never heard of.

At some point I may even get chance to see if it works!
Fun fact: The title screen was drawn by me in AMX Super Art.
by Pernod
Mon Apr 30, 2018 10:58 am
Forum: emulators
Topic: MAME: Mouse, and other pointing devices
Replies: 21
Views: 1262

Re: MAME: Mouse

I have both the AMX and M512 mouse working, using almost exact code from B-em. Though I don't use the (uservia.ifr & 0x18) check in mouse_poll_x86, I can't access the internal VIA register from the mouse device, why is it needed? I read somewhere else that the M512 could use an AMX mouse, sounds unl...
by Pernod
Sun Apr 29, 2018 4:10 pm
Forum: emulators
Topic: MAME: Mouse, and other pointing devices
Replies: 21
Views: 1262

Re: MAME: Mouse

Is anyone familiar with the mouse code in b-em? I'm struggling to understand exactly what is required, specifically when to assert/clear the CB lines. I also don't know the significance of the variables mouse_ff, mx, my so can anyone explain? How is the distance moved by the mouse determined? Is it...
by Pernod
Sat Apr 21, 2018 10:25 am
Forum: software: classic games
Topic: Commando -Elite Systems1985- Space Invasion??
Replies: 10
Views: 839

Re: Commando -Elite Systems1985- Space Invasion??

Capcom released Commando as Space Invasion for the West German market. Same game but different sprites changing the enemies to alien robots to make it less violent to humans.
For the home versions Elite made C64 and Amstrad (maybe others?) versions of Space Invasion for the West German market.
by Pernod
Thu Apr 19, 2018 12:51 am
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

Sorry to pernod for diverting your thread with this discussion. I hope you find it useful! We can take it elsewhere if you like. No problem, it's all relevant for testing. I tried your ROMFS version of Southern Belle and again just a blank screen, so very likely need to overhaul the tape interface....
by Pernod
Wed Apr 18, 2018 10:24 am
Forum: software & utilities for the pc, mac or unix
Topic: New Disk Image Editor
Replies: 77
Views: 3517

Re: New Disk Image Editor

I just loaded up a SSD containing four files with the purpose of simply changing the Boot Option from 0 to 3. When I saved this I expected only a single byte to be changed in the image, but no. It had re-ordered all the files in the image. If no files are being added or removed from the image then I...
by Pernod
Tue Apr 17, 2018 8:15 pm
Forum: software: new games
Topic: Time for Zarch .... on the beeb?!
Replies: 19
Views: 1350

Re: Time for Zarch .... on the beeb?!

tricky wrote:Just 1 and 2, I think the beeb author did 3 themselves, but I think 1 & 2 may have been held back until 3 was ready.
It wasn't Matthew, just had a chat with him. Doesn't know who did either.
by Pernod
Tue Apr 17, 2018 4:27 pm
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

davidb wrote:I quickly created a disc image for testing. I'm not sure how useful it will be.
Thanks, but worse then Elkulator, I get nothing but a blank screen. I'll re-visit it when I can load it from UEF.
by Pernod
Tue Apr 17, 2018 2:41 pm
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

Don't let those test cases discourage you. They're quite challenging and Elkulator doesn't get them quite right, either. :) Not at all, though I've achieved what I wanted for this release. I'll be moving back to BBC video next as split modes haven't worked for maybe 10 years! Southern Belle is on t...
by Pernod
Tue Apr 17, 2018 11:18 am
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

Excellent test cases, though unsurprisingly I need to work on the scrolling:
0143.png
0144.png
by Pernod
Tue Apr 17, 2018 10:42 am
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

Have you tried Southern Belle? I previously thought it didn't work in Elkulator until I just tried it to check. It's possibly not quite right, as the attached screenshot shows. Not yet, UEF is still not great and unable to load Southern Belle, no disc image of it either. I can also provide you with...
by Pernod
Tue Apr 17, 2018 9:33 am
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

Found the bad palette write and everything looks good: 0141.png 0142.png I believe the Electron in MAME is now about on par with Elkulator and certainly exceeds in configurability and supported peripherals. Timing is not 100% but is closer to the real thing than Elkulator. The only game that I'm awa...
by Pernod
Mon Apr 16, 2018 4:54 pm
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

I can't say I'm sure what's going on with your 3d Pool — that's where the graphics are supposed to be, but there should be a black background behind the text, inside a green border. The colour fringing on the text is correct. Has a palette write gone missing somehow? It could well be a palette issu...
by Pernod
Sun Apr 15, 2018 12:01 pm
Forum: emulators
Topic: MAME: Video handling
Replies: 38
Views: 2379

Re: MAME: Video handling

Improved the timing and Flight Path 737 looks good.
This menu is a great test for timing to ensure each colour band lines up with each option correctly.
0137.png
0136.png
Anyone know what 3D Pool does to look like this:
0138.png