first of all what the forget is an ableton
the 10 seconds you spent posting this could have been spent googling this
edit: https://woolyss.com/chipmusic-plugins.phpthis has a lot of VSTs, famisynth may be of interest
https://www.kvraudio.com/product/synth1-by-ichiro-todaI enjoy using this all the time. Its 64 compatible.
TB Peach (I do see it is on that list) is preset-based but has really sweet sounds. Should work with Ableton, works with FL and I think I've used it on 64 bit FL but I'm not certain.Iunno about actual chiptune instruments.
I've been trying this already, it's pretty good but I haven't been able to get any great bit crunched sounds, any tips for very nes like sounds?
Hm you could try running the sounds through a bit crusher, the best I got. :\