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by qlk1123 2075 days ago
It writes an invalid instruction at this location. What ever this instruction, it just has to be invalid.

RISC-V actually did this in a special instruction called ebreak. It can change the CPU privileged mode into Debug Mode.

1 comments

Author here.

As I mentioned above, I will rewrite this sentence to include dedicated special instructions. It was a wording mistake not to mention it!