I've written a test program that writes colours to the screen. Mame is what I'm expecting, ubee in 512k mode shows these artifacts. Putting ubee into p128k mode shows the bottom half of the text flickering.
What's causing the difference? I'm assuming it's some microbee hardware limitation the ubee implements and mame doesn't.
![[Image: screenshotbee.png]](https://i.ibb.co/YLPBfB4/screenshotbee.png)
![[Image: screenshotubee128.png]](https://i.ibb.co/zZ51ChW/screenshotubee128.png)
![[Image: screenshotmame.png]](https://i.ibb.co/Cbc9TrQ/screenshotmame.png)
What's causing the difference? I'm assuming it's some microbee hardware limitation the ubee implements and mame doesn't.
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