Borderline
I've finally found some time to add border support to the Sam Coupe driver. Since I don't really know how big it's supposed to be, it's 32 pixels in each direction now. Here are some screenshots showing border effects:
As you can see in the last picture, the emulation is not perfect. This isn't really specific to the border though, for this to work correctly we need to render partial lines instead of drawing them always at once.















