I have written a new core for the Ultimate Cart. It is an implementation, a behavior based clone, of the Project Veronica 65816 cartridge. The 65816 implementation is not cycle exact but seems to run fairly reliably so far.
In order to get it running you need to download and flash http://www.64kib.com...ica20180414.pofusing the USB blaster.
You will need to flash back the standard core to use it as a flash card reader later.
You will then need software, I suggest trying the following two:
http://atariage.com/...ica/?p=3190927:atr file with tests and demos
Many thanks to Zenon/DIAL, Marek Konopka, and Simius for their work on the original. Thanks for Robin Edwards for his work on the Ultimate Cart. Thanks to Robert Finch for his 65816 core. Thanks for Avery Lee for his work on the documentation of the Veronica cart and Veronica Basic.
See https://github.com/r...ds/UltimateCartfor details about the Ultimate Cart.
See http://atariage.com/...oject-veronica/for details about Project Veronica.
See https://github.com/r...ee/master/FT816for the 65816 core.
See http://www.64kib.com..._cart/veronica/for my core to tie it all together.