arm_neon.h / vext_u64 (uint64x1_t __a, uint64x1_t __b, __const int __c)

Jochen Barth
Thu Sep 10 08:14:20 GMT 2020

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 

why is "the only possible index for n=0" ?

Kind regards, Jochen

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