PPC had that (zero one cacheline) and this caused a good amount of complaining when the G5 came out and increased the cacheline size, making dcba/dcbz worthless

PPC had that (zero one cacheline) and this caused a good amount of complaining when the G5 came out and increased the cacheline size, making dcba/dcbz worthless and dcbzl have different behavour between G4 and G5.