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Suchen: Beiträge von: hap
Forum: Mess Emu und andere Emulationen 09.10.2021, 10:55
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Neuer romdump von Berger: Fidelity Elite Champion Challenger

(this is the consumer sold version, the other one that's already emulated was the more enhanced Travemunde version)
Forum: Mess Emu und andere Emulationen 25.09.2021, 17:46
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Yes, the version number is 2.1 in the program itself.

I can confirm it is Gideon 3.1 (a little bit newer revision of it since rom contents not 1:1 identical).
The text in the ROM says "Champion...
Forum: Mess Emu und andere Emulationen 24.09.2021, 20:50
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Trust me I'm about as confused as you are.

It is known that the official 5.5MHz version has a 11MHz XTAL. And the 1st Conchess version is 2MHz with a 4MHz XTAL. Those are correct.

PCB photos of...
Forum: Mess Emu und andere Emulationen 24.09.2021, 20:15
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Yes it's confusing.

I don't know where this 8MHz version was dumped from, I received the rom dump anonymously(maybe you know who ;) ). Though I don't think it was dumped from a SteveUK Amsterdam...
Forum: Mess Emu und andere Emulationen 23.09.2021, 20:17
Antworten: 4.734
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Neuer tag, neuer rom dump von Berger.
Conchess Plymate 5.5MHz

It is almost identical to the other Plymate dump, most of the differences are due to changed timing I guess.
Forum: Mess Emu und andere Emulationen 19.09.2021, 16:52
Antworten: 4.734
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

1) No checksum, but usually on old chips(late 70s, early 80s) the rom bits are very visible as you can see. If there are errors in it, it's easy to fix during visual verification.

2) Don't know...
Forum: Mess Emu und andere Emulationen 19.09.2021, 12:05
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

For anyone who's curious about it, let me describe the extraction of the ROM for Fidelity Checker Challenger 2. It is not your standard desolder->romchip in reader tool->rom file comes out

A few...
Forum: Mess Emu und andere Emulationen 16.09.2021, 15:28
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Wizard Franz does it again, spearheaded massive efforts to emulate these machines.
I see a quote from you, does it mean he interviewed you?
Forum: Mess Emu und andere Emulationen 15.09.2021, 18:27
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

I know a guy from Catalonia who's good at repairing chesscomputers and such, send it to him?
Forum: Mess Emu und andere Emulationen 15.09.2021, 18:14
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Yes, that is model ACR, and it also blinks on MAME.

Model CR is slightly newer, I wouldn't be surprised that they used the ACR manual as a template and had an oversight about blinking on double...
Forum: Mess Emu und andere Emulationen 15.09.2021, 15:01
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

*edit* Does someone have Checker Challenger CR?
The manual says that the "to" digits will blink if the CPU opponent wants to make a double or triple jump, indicating that the user needs to press the...
Forum: Mess Emu und andere Emulationen 06.09.2021, 12:06
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

I haven't found the Avelan manual on the internet.
I don't even know what year it was released in, I guess 1981 or 1982.

some photos here:...
Forum: Mess Emu und andere Emulationen 02.08.2021, 20:07
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

At 4mhz(Super Conny's default 6502 cpu speed), 2000ns is 8 cpu cycles. I think the slowest opcode is around 6 cycles. Anything lower than 2000ns and it can miss IRQs.

For the lower speed...
Forum: Mess Emu und andere Emulationen 02.08.2021, 14:40
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

If it's an IRQ problem, it may be really simple, see this line here:
https://github.com/mamedev/mame/blob/master/src/mame/drivers/novag_const.cpp#L463
change to 2000, and it shouldn't get unwanted...
Forum: Mess Emu und andere Emulationen 22.07.2021, 12:04
Antworten: 4.734
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Ok, bug ist repariert
https://github.com/mamedev/mame/commit/e76c745eaacab98baa69052275d26c4f612639cd
Forum: Mess Emu und andere Emulationen 13.07.2021, 19:35
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

bereits emuliert \o/

https://i.imgur.com/sVetmCr.png
Forum: Mess Emu und andere Emulationen 02.07.2021, 18:45
Antworten: 4.734
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Neue romdump von Berger: Fidelity EAS Urversion.

Since a lot of them were upgraded to Budapest/Glasgow, it's pretty rare.
Forum: Mess Emu und andere Emulationen 25.06.2021, 15:02
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Re: AW: Re: Mess Emulator für diverse Schachcomputer ist fertig!

Not easy.

The way the LED outputs were done in the old driver is nonsense from a hardware point of view and needed a complete rewrite.
It needs to use pwm_display_device to get correct leds.
Forum: Mess Emu und andere Emulationen 25.06.2021, 13:14
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Yes, set_periodic_int will override the other one. The NMI change looks correct.


This older driver is maybe 10% of my code, it's mainly by Sandro.
The newer one has more of my involvement. (see...
Forum: Mess Emu und andere Emulationen 25.06.2021, 12:49
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Yeah I suspect it was the NMI. When I did an overhaul to the mephisto drivers a few months ago that must have been one of the things that were fixed. Interrupts were wrong in several drivers. For...
Forum: Mess Emu und andere Emulationen 24.06.2021, 22:17
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Mondial II works fine on MAME.
I played 2 quick games... and lost both. But there were no lockups.
Forum: Mess Emu und andere Emulationen 22.06.2021, 19:10
Antworten: 4.734
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

Neue romdump von Berger: Fidelity Elegance AS12.

I think it's older than the one that was dumped before, that was dumped by Yovan from a model 6085.
Forum: Technische Fragen und Probleme / Tuning 15.06.2021, 09:14
Antworten: 18
Hits: 3.443
Erstellt von hap
Re: Frage aus Youtube Kommentare

Is there any proof that there is a 5.1 module or did someone invent a version number? I only know of "Modul MM V".

The difference between the two: if you exclude changed branch destinations due to...
Forum: Mess Emu und andere Emulationen 12.06.2021, 18:24
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

It's similar to some Mephistos where you need to press 2 buttons at the same time to cause a reset. On ARB it's reset+halt buttons.
Forum: Mess Emu und andere Emulationen 12.06.2021, 16:02
Antworten: 4.734
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Re: Mess Emulator für diverse Schachcomputer ist fertig!

I did it in this driver:
https://github.com/mamedev/mame/blob/master/src/mame/drivers/k28.cpp#L110
https://github.com/mamedev/mame/blob/master/src/mame/drivers/k28.cpp#L186
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