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CONFIG_NIOS2_ALIGNMENT_TRAP: Catch alignment trap

General informations

The Linux kernel configuration item CONFIG_NIOS2_ALIGNMENT_TRAP:

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Nios II CPUs cannot fetch/store data which is not bus aligned, i.e., a 2 or 4 byte fetch must start at an address divisible by 2 or 4. Any non-aligned load/store instructions will be trapped and emulated in software if you say Y here, which has a performance impact.



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