> SWP and SWPB - these were deprecated in ARMv7 but absent in ARMv8. If I am not mistaken, these were deprecated in ARMv6 already, and they are optional in ARMv7: http://www.google.com/search?q=swp+swpb+armv6+armv7
The QNAP things that people seem keen not to lose support for are ARMv5TE.
