ARM has DIT: https://developer.arm.com/documentation/ddi0595/2021-06/AArch64-Registers/DIT--Data-Independent-Timing https://developer.arm.com/documentation/ddi0

ARM has DIT: https://developer.arm.com/documentation/ddi0595/2021-06/AArch64-Registers/DIT--Data-Independent-Timing https://developer.arm.com/documentation/ddi0595/2021-06/AArc... Intel has DOIT: https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/best-practices/data-operand-independent-timing-isa-guidance.html https://www.intel.com/content/www/us/en/developer/articles/t... The idea is that the processor will not take shortcuts that take advantage of the values it is processing. For example, a 64-bit division cannot shortcut if the operands are both small, etc.