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  • 6 bytecode

6 bytecode · Changes

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chore: modify bytecode doc authored May 21, 2024 by qingyun Ma's avatar qingyun Ma
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zkevm-docs/6-bytecode.markdown
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......@@ -58,7 +58,7 @@ ADD
| addr | pc | bytecode | acc_hi | acc_lo | value_hi | value_lo | cnt | is_high |
| ---- | ---- | -------- | ------ | --------------------------------- | -------- | --------------------------------- | ---- | ------- |
| 0xaa | 0 | PUSH1 | 0x0 | 0x0 | 0x0 | 0x0 | 1 | 0 |
| 0xaa | 0 | PUSH1 | 0x0 | 0x0 | 0x0 | 0xa | 1 | 0 |
| 0xaa | 1 | 0xa | 0x0 | 0xa | 0x0 | 0xa | 0 | 0 |
| 0xaa | 2 | PUSH17 | 0x0 | 0x0 | 0x203 | 0x405060708090a0b0c0d0e0f10111213 | 18 | 1 |
| 0xaa | 3 | 0x2 | 0x2 | 0x0 | 0x203 | 0x405060708090a0b0c0d0e0f10111213 | 17 | 1 |
......@@ -152,7 +152,7 @@ addr unchange && addr != 0 ----> pc_cur - pc_prev = 1 (同一个合约中pc是
**Padding row**
cnt、addr、pc、bytecode、value_hi、value_lo、acc_hi、acc_lo、is_high都为0
cnt、addr、pc、bytecode、value_hi、value_lo、acc_hi、acc_lo、is_high, rlc_acc, hash_hi, hash_lo都为0
**Opcode(非PUSH)**
......@@ -192,13 +192,19 @@ addr change ----> rlc_acc=bytecode (addr发生变化,说明是一个新的合
addr unchange && addr != 0 ----> rlc_acc = rlc_acc_prev * challenge + bytecode (rlc_acc累加)
**hash_hi和hash_lo**
addr_unchange_next != 0时,即下一行的addr change,下一行是新合约的开始,则当前行存放有合约的hash值(hash_hi和hash_lo的值不为0)
所以只要addr_is_not_zero && addr_unchange_next != 0 则hash_hi和hash_lo都为0
## Lookup约束
每一个byte都应该在fixed电路中Lookup到,即每一个字节大小都应该在0~255范围内~~(是否真的有必要进行Lookup,因为bytecode列是从instance_bytecode来的,是公共数据)~~
Lookup Fixed table, 约束Bytecode是否为正确的Opcode, <tag=Bytecode, bytecode, is_push, cnt>
Lookup keccak table,<pc+1(即length), rlc_acc, hash_hi, hash_lo> 去往Keccak table查。此lookup只在下一行的addr change==0时进行。
Lookup keccak table,<pc+1(即length), rlc_acc, hash_hi, hash_lo> 去往Keccak table查。此lookup只在下一行的addr change==0时进行(即合约的最后一个bytecode所在行存放着合约bytecode的hash值)。
Lookup Public table,addr和hash新增的往public table的lookup。<tag=CodeHash, addr, hash_hi, hash_lo>。此lookup只在下一行的addr change==0时进行。(也许addr要拆成hi和lo)
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