By any chance in the future are you considering C64AGA?
Firstly, you do realise Novacoder has ported software, not written it from scratch dont you? This isnt to discredit him, I also appreciate and enjoy his work, but do you have any idea how complex a machine the c64 is to emulate? Which emulator would you propose he ports? The only way to get good performance in a c64 emulator on a 680x0 cpu is to code completely in asm. There's no 680x0 asm open source emulators out there.
Secondly, there's no real advantage in using AGA vs even ocs for c64 emuation. CPU speed is the important thing here.
If you want a good c64 emulator for your classic, use MagiC64. Its easily the fastest c64 emu around for "classic" 68k amigas and even runs full speed for some games on my 40mhz '040 when using sound. Worst case scenario and I have to skip a few frames. Even on my 50mhz blizzmk4 '030 I had some years (decades) ago I could play quite a few games at close to full speed when using 1 frame in 3.
Anyone who knows much about how hard the c64 is to emulate will understand just how impressive that is for such low spec hardware.
You seem to be a bit misguided as to what RTG is and how it works too. Basically if software is system friendly it works under RTG. No special effort is required to use RTG, and most software that doesnt hit hardware directly will work on RTG.
