Скачать или смотреть Exploring the Commodore 128 U36 empty ROM slot and testing out the luma fix to remove jail bars

The unused rom socket can extend your C128 with additional features.
PCBWay kindly sponsored this video https://pcbway.com/g/sh5u2D great quality PCBs from just $5!

First I try out the Luma Fix for the C128. It has a lot of adjustments to help remove jail bars and is difficult to tune, but I'm not sure if it's worth it.
Then I test some rom software that can extend the C128 using the empty U36 socket, including the GEOS 128.

Contents:

0:00 Intro
3:00 Luma fix test
23:35 U36 expansion roms
44:03 GEOS
52:15 Conclusion

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