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CONFIG_HWZOL: hardware zero overhead loop support

General informations

The Linux kernel configuration item CONFIG_HWZOL:

Help text

A set of Zero-Overhead Loop mechanism is provided to reduce the instruction fetch and execution overhead of loop-control instructions. It will save 3 registers($LB, $LC, $LE) for context saving if say Y. You don't need to save these registers if you can make sure your user program doesn't use these registers.

If unsure, say N.



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