First more complex demo in emulator (Patreon)

Finally I have something moving on the screen for the new system I'm working on.

Some steps are taken now:

- CPU is nearly done and passes all basic tests

- all major GPU features are implemented

- IRQ, Timers, DMA and Game Controller support is still basic, but most important parts work

There are still 3 core features/chips/blocks missing before official games can run. Hopefully I get all 3 done and working in August.

Once first games are running, I will come back here and report, because that's the time I will start on the FPGA part.

Until then, have fun!