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  • core log

core log · Changes

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edit core-log authored Dec 25, 2023 by superhin's avatar superhin
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  • zkevm-docs/4-core/core-log.markdown zkevm-docs/4-core/core-log.markdown +26 -3
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zkevm-docs/4-core/core-log.markdown
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## EVM-LOG指令定义
> 参考:<https://ethervm.io/#LOG0>
......@@ -15,7 +14,7 @@
**LOG0**
```
flowchart LR
LogBytes
LogBytes --> LogTopicNumAddr
```
**LOG1-LOG4**
......@@ -30,11 +29,19 @@ flowchart LR
- LogTopic: 处理每一个TopicHash处理(Public Lookup)
## 具体Gadget设计
### LogBytesGadget设计
处理memory[offset:offset+length],数据从Memory拷贝到PulbicLog
主要约束:
- state_stamp = pre + 2
- log_stamp = pre + 1
- next_pc = pc
gen_witness状态变化
- log_stamp += 1
|cnt| | | | |
|---|-------|-------|---------|---------|
| 2 | COPY(9) |-| -|PUBLIC(6) |
......@@ -78,6 +85,15 @@ flowchart LR
### LogTopicNumAddrGadget设计
主要约束:
- state_stamp = pre
- log_stamp = pre
- next_pc = pc + (1 * topic_left_0)
gen_witness状态变化
- 根据opcode 初始化state.topic_left
|cnt| | | | |
|---|-------|-------|---------|---------|
| 2 | - |-| -|PUBLIC(6) |
......@@ -100,6 +116,13 @@ flowchart LR
### LogTopicGadget设计
主要约束:
- state_stamp = pre
- log_stamp = pre
- next_pc = pc + (1 * topic_left_0)
gen_witness状态变化
- state.topic_left-=1
|cnt| | | | |
|---|-------|-------|---------|---------|
......
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