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I still think it's worth software listing useful demos / test programs for future reference.

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Yeah, we'll get there, but the firehose just got turned on as far as booting protected originals too.

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rfka01 Offline OP
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I finally got hold of an ITT2020, the first licensed Apple II clone for the European market. It's marked "PALSOFT" and the ROM labels match the descriptions for that designation.
They patched some known problems with the original ROMs but introduced new compatibility problems by altering some memory addresses and increasing the A2's resolution to display colour on PAL monitors / TV sets.

[Linked Image]

Now how to read these ROMs ... I read they are 9316's, and the pinout is different to a regular 2716.

[Linked Image]

[Linked Image]

[Linked Image]


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Originally Posted by peter ferrie
Thanks, I will experiment with it.


Anything interesting in there?

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All those roms are labeled as standard PAL applesoft 'PALsoft' roms EXCEPT the one at F8.
I think we need dumps of all of those, but it may be possible to dump all of them from software to a serial port, if the computer works and you have a super serial card and cable.

LN

Last edited by Lord Nightmare; 08/01/18 08:35 PM.

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rfka01 Offline OP
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It may be some time, but I've ordered an adapter from Reactive Micro to read those ROMs. Apart from that, I'm hating myself for not being able to find that 25 pin gender changer adapter to run ADT on a //e but go ahead, rub it in grin


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LN: yeah, the 2020 has wider video for PAL and a 9th bit in the 2000-4000 range to back it up so there are definitely mods to at least the Monitor HGR routines. It's the only "true" PAL Apple II that was released until the GS.

Last edited by R. Belmont; 08/01/18 11:27 PM.
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rfka01 Offline OP
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The character generator of an ITT2020 was dumped by a guy on the German vintage computer forum. He claims the dump came from a 2732 EPROM and contained a German and an US char set. My machine has a RO 2513 char ROM. Could someone please check if the dump is sane?

My ITT2020 is not operational atm, it seems to have memory problems as booting disks is hit and (mostly) miss. Even the original ITT2020 disk from the Asimov archive doesn't boot.
I have a functioning //e with disks and a SSC, so if there's a way to transplant the chargen ROM and read it out via the //e, I'm game.

Apart from the disks from Asimov, the char gen ROM and some documentation, the archive on the FTP and here contains ITT2020 cassette dumps that were posted by a guy on comp.sys.apple2 but seem to have disappeared since.


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Wiki claims the 2020 never officially got the 16-sector DOS 3.3 upgrade and only came with 3.2, but I would think that in real life plenty of them probably got the upgraded card and drives?

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rfka01 Offline OP
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Unfortunately I just got the machine without peripherals or disk (apart from that language card). After the quick run of the ITT2020 the Apple II clones started proliferating in Germany, so I imagine most ITT2020 users just grabbed a 16 sector controller and copied away happily.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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