I'm reviving this somewhat stale thread (2011
) as I'll be receiving an Alphatronic PC rig soon, and I realised I hadn't dumped the one already lurking in my basement.
It's somewhat different from the OP's machine in that the ROMs are really only 3x8KB instead of the bigger 32K with the unused top 8K.
And - it has a ROM pack containing a game (Escape) and a text editor (Brief Editor).
The existing Alphatronic PC driver source mentions
What's the IPL? If possible, I'll dump it.
ROM_REGION( 0x10000, "user1", ROMREGION_ERASE00 )
ROM_LOAD( "ipl.bin", 0x8000, 0x2000, NO_DUMP )
As usual, here are photos and the file dumps:Alphatronic PC machine #1
There's a manual for the international incarnation of the alphatronic PC and some disk images here:http://www.retroarchive.org/hardware/Royal/index.html
There are two types of disk drive, F1 and F2. The disk controller board that the OP posted is only found in the F1, the F2 is a "dumb" drive. The cable is just a cable, there's no PAK for the floppy system. I'll take apart my F1 drive once I get my complete rig.