K 10
svn:author
V 6
andrew
K 8
svn:date
V 27
2019-11-07T17:34:44.704667Z
K 7
svn:log
V 258
Add more 8 and 16 bit variants of the the atomic(9) functions on arm64.

These are direct copies of the 32 bit functions, adjusted ad needed.
While here fix atomic_fcmpset_16 to use the valid load and store exclusive
instructions.

Sponsored by:	DARPA, AFRL

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