zkevm-docs/7-copy.markdown

+# Copy
+
 ## 简介
 copy类操作指的是在EVM中进行不定长的一段数据拷贝，例如`CALLDATACOPY`将`calldata`中的一段数据拷贝到`memory`中。拷贝以`byte`作为数据长度单位，不同于栈的`U256`。
 
@@ -35,7 +37,7 @@ copy类操作指的是在EVM中进行不定长的一段数据拷贝，例如`CAL
 
 | public     |              |           |          |      |
 | ---------- | ------------ | --------- | -------- | ---- |
-| TxCalldata | block_tx_idx |   --      | data_idx | data |
+| TxCalldata | block_tx_idx | --        | data_idx | data |
 | TxLogData  | block_tx_idx | log_index | data_idx | data |
 
 
@@ -111,16 +113,16 @@ pub enum Type {
 
 例子：CODECOPY，从bytecode拷贝到memory。例子里长度为8，被拷贝的数据为0xabcd......见下表。
 
-| byte | src type   | src id        | src pointer | src stamp | dst type | dst id | dst pointer   | dst stamp  | cnt | len | acc |
-|------|------------|---------------|-------------|-----------|----------|--------|---------------|------------|-----|-----|-----|
-| 0xab | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 0   | 8   |0xab |
-| 0xcd | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 1   | 8   |0xabcd|
-| ...  | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 2   | 8   | ...  |
-|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 3   | 8   |      |
-|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 4   | 8   |      |
-|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 5   | 8   |      |
-|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 6   | 8   |      |
-|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 7   | 8   |      |
+| byte | src type   | src id        | src pointer | src stamp | dst type | dst id | dst pointer   | dst stamp  | cnt | len | acc    |
+| ---- | ---------- | ------------- | ----------- | --------- | -------- | ------ | ------------- | ---------- | --- | --- | ------ |
+| 0xab | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 0   | 8   | 0xab   |
+| 0xcd | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 1   | 8   | 0xabcd |
+| ...  | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 2   | 8   | ...    |
+|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 3   | 8   |        |
+|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 4   | 8   |        |
+|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 5   | 8   |        |
+|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 6   | 8   |        |
+|      | `Bytecode` | contract addr | some offset | nil       | `Memory` | callid | some mem addr | some stamp | 7   | 8   |        |
 
 注意：同一次Copy的许多行里的pointer，是一样的，都和第一行相同。