4 ms·
The arms allow it since ARMv5, but it's still not quite what one would expect until ARMv7. However it has a significant performance penalty when doing it. http
by simcop2387 7y ago
The arms allow it since ARMv5, but it's still not quite what one would expect until ARMv7. However it has a significant performance penalty when doing it.
https://medium.com/@iLevex/the-curious-case-of-unaligned-access-on-arm-5dd0ebe24965 https://medium.com/@iLevex/the-curious-case-of-unaligned-acc...
- elgfare 7y agoCortex-M0 still does not allow it, and fun fact: Cortex-M4 allows unaligned access, but can be configured run-time to not allow it.