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by cokernel_hacker 599 days ago
ARM has DIT: https://developer.arm.com/documentation/ddi0595/2021-06/AArc...

Intel has DOIT: 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.

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Intel DOIT instruction list does not include DIV: https://www.intel.com/content/www/us/en/developer/articles/t...