Add some mist button support for keyboard less setups
Button 0=F11. Switched swapped joysticks. connected led to sio
Added scandoubler. Build some variants.
Added ZPU. Added read/write SD support. Fixed joystick. Switched to new mist keyboard mode (ps2 emulation).
Fixed turbo
Re-connected SDRAM to DE1
Use video bits generic
Adjusted this based on mist settings - in the hope this will mean I need to tweak the phase offset less...
Connected up SDRAM. Make 800XL core wait for SDRAM reset to complete. Also had to adjust phase offset to make it work - need to get a proper setup for mist
Wired up mist with internal ram/rom. Tested OK.
Current unmerged vhdl for my Atari800 core and start at merging them into one tree with a common core