Have you been itching to do 64 Bit ARM assembly program like I have on your Raspberry Pi? I'll bet you have.
I mean, the thing has to be useful for SOMETHING right?
Most Raspbian installs are still on 32 bits, but switching is easy. Make backups and all that and then do:
Then edit /boot/config.txt and add:
That's all there is to it.
Of you do a
and see something with v 8 (not 7), you're done. Onto 64 bit assembly coding!