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A comment on XOR'ing a register with itself is the idiom for zeroing it out. Why not sub?. Parent comment

Re:XOR'ing a register with itself is the idiom for zeroing i... by classichasclass on Wednesday April 22, 2026 @09:02AM (#47862960)
PowerPC: "r0 occasionally" (with certain instructions like addi, though this might be better considered an edge case of encoding)
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