Am 19. April 2017 02:57:45 schrieb Ethan Dicks <email@example.com>: > like what's already in the BASIC 2 ROMs, I'd figure, but for now, I > really just want to know what the bug(s) was/were. > If that's covered in Raeto West's book or somewhere equally > accessible, I'm happy to just get pointed at the literature. I don't remember the details, but I once created a "fix" for the BASIC 1 ROMs for the VICE emulator. The fix is optionally patched into the ROMs to make the IEEE488 disk routine work - VICE xpet does not use ROM traps but real hardware emulation for the IEEE488 bus so I could not just move traps around. A quick look into the xpet directory of the VICE source should suffice to find it. For a real machine another mail triggered something deep in my memory I saw when I designed my replacement board. It might indeed be possible that the EOF line conflicts with a video line (sync?) on one of the ports. It could be that for the upgrade you may have to cut a wire too. But maybe someone with real upgrade experience may chime in here. And/or having a deeper look at the schematics... Regards André > Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2017-04-19 06:00:02
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