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ROM 4X and 5X
ROM 4X and 5X are enhanced firmwares for the Apple //c and Apple IIc Plus.
Main features:
In development:
4X - available in pre-release: Configure ordinary boot to behave as if one of the menu options was selected.
5X - in the works: additionally, set accelerator state (disable/speed/paddle delay/speaker delay).
See ROM 4X and 5X on GitHub.
Releases