Dear Tamar, Sorry, I do no get the point:
EXT is a byte level extract, if you have a 64 bit vector and a 64-bit type like uint64x1_t then the only possible index for n is 0.
But my previous examples with n=c=1..7 showed that different (n=c)'s are possible,
why is "the only possible index for n=0" ? Kind regards, Jochen