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## EVM-LOG指令定义
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> 参考：<https://ethervm.io/#LOG0>
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|uint8|Mnemonic|Stack Input|Stack Output|Expression|Notes|
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|A0|LOG0|offset,length|-|LOG0(memory[offset:offset+length]) |fires an event
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|A1|LOG1|offset,length,topic0|-| LOG1(memory[offset:offset+length], topic0)| fires an event
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|A2| LOG2| offset,length,topic0,topic1|-|LOG2(memory[offset:offset+length], topic0, topic1)|fires an event
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|A3 |LOG3| offset,length,topic0,topic1,topic2|-|LOG3(memory[offset:offset+length], topic0,topic1,topic2)| fires an event
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|A4 |LOG4| offset,length,topic0,topic1,topic2,topic3|-|LOG4(memory[offset:offset+length], topic0, topic1,topic2,topic3)|fires an event
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# LOG指令
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## 处理流程
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**LOG0**
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