Questions tagged
The hardware microarchitecture (x86, x86_64, ARM, ...) of a CPU or microcontroller.

The hardware architecture and ISA (x86, x86_64, ARM, ...) and the micro-architectural implementation of a CPU or microcontroller.

Use this tag for questions regarding features, bugs and details concerning the inner working of specific CPU architectures.

Don't use this question if you have no reason to believe your issue is related to the CPU architecture.