Post #3091770
2026-03-22 15:03 UTC
Responding to myself:
Looks like this is one of the fixes in firmware version 3.14d. (https://ultimate64.com/Firmware). Looks like that one doesn’t include the KERNAL and stuff which comes prepackaged in the official FW. But then there is hope.
Replies (1)
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@mikael@hachyderm.io 2026-03-22 17:05
Responding to myself responding to myself: I borrowed the KERNAL, Basic, and Char ROMs from a VICE installation, after which the updated #Ultimate64 booted up as expected. I can’t say for sure whether all issues are gone, but Mayhem in Monsterland, which would never load successfully with #JiffyDOS earlier on this machine started up like nothing; and Gunship, which would inevitably crash at an arbitrary point in loading, has come right up into flight mode. Awesome!