Hello Jens,
By looking at the picture with the 3 screens, I can see that the dual screen trick is done this way :
The Amiga (I mean Agnus...) is set up to display a 640x512 interlaced screen but the workbench thinks it is a 1280x256 screen.
One FF shows the even frames, the other one shows the odd frames. Screen update is done at 25Hz in the FF's SDRAM and 75Hz on the screens.
Very smart trick indeed.
To get higher resolutions, you will have to lower the update rate. It reminds me the high resolution screen from commodore that was combining 4 screens and had an update rate of 15 Hz.
Back to the indivision, a good use of it would be to get HW acceleration for MAME.
If it is possible to reconfigure the FPGA on the fly without flashing the board, that might be possible (I do not want to reflash the board each time I play a different game).
Regards,
Frederic
