EIP-4399 implementation of nim-vm2
new addition: - `RANDOM` opcode - `random` field of BlockHeader(previously `mixDigest`) - `PostMerge` temporary name of this new EVM version
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@ -58,6 +58,9 @@ template getBlockNumber*(c: Computation): Uint256 =
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template getDifficulty*(c: Computation): DifficultyInt =
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c.vmState.difficulty
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template getRandom*(c: Computation): Hash256 =
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c.vmState.random
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template getGasLimit*(c: Computation): GasInt =
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c.vmState.gasLimit
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@ -730,7 +730,8 @@ const
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FkPetersburg: SpuriousGasFees,
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FkIstanbul: IstanbulGasFees,
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FkBerlin: BerlinGasFees,
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FkLondon: LondonGasFees
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FkLondon: LondonGasFees,
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FkPostMerge: LondonGasFees
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]
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@ -742,6 +743,7 @@ gasCosts(FkConstantinople, constantinople, ConstantinopleGasCosts)
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gasCosts(FkIstanbul, istanbul, IstanbulGasCosts)
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gasCosts(FkBerlin, berlin, BerlinGasCosts)
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gasCosts(FkLondon, london, LondonGasCosts)
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gasCosts(FkPostMerge, postMerge, PostMergeGasCosts)
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proc forkToSchedule*(fork: Fork): GasCosts =
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if fork < FkHomestead:
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@ -758,8 +760,10 @@ proc forkToSchedule*(fork: Fork): GasCosts =
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IstanbulGasCosts
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elif fork < FkLondon:
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BerlinGasCosts
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else:
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elif fork < FkPostMerge:
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LondonGasCosts
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else:
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PostMergeGasCosts
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const
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## Precompile costs
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@ -209,6 +209,10 @@ type
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SelfDestruct = 0xff ## Halt execution and register account for later
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## deletion.
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const
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# EIP-4399 new opcode
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Random* = Difficulty
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# ------------------------------------------------------------------------------
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# Verify that Op is contiguous and sym names follow some standards
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# ------------------------------------------------------------------------------
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@ -53,6 +53,11 @@ const
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k.cpt.stack.push:
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k.cpt.getDifficulty
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randomOp: Vm2OpFn = proc (k: var Vm2Ctx) =
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## 0x44, Get the block's randomness
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k.cpt.stack.push:
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k.cpt.getRandom
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gasLimitOp: Vm2OpFn = proc (k: var Vm2Ctx) =
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## 0x45, Get the block's gas limit
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k.cpt.stack.push:
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@ -113,7 +118,7 @@ const
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post: vm2OpIgnore)),
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(opCode: Difficulty, ## 0x44, Block difficulty
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forks: Vm2OpAllForks,
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forks: Vm2OpAllForks - Vm2OpPostMergeAndLater,
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name: "difficulty",
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info: "Get the block's difficulty",
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exec: (prep: vm2OpIgnore,
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@ -150,6 +155,14 @@ const
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info: "Get current block's EIP-1559 base fee",
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exec: (prep: vm2OpIgnore,
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run: baseFeeOp,
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post: vm2OpIgnore)),
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(opCode: Random, ## 0x44, EIP-4399 Block randomness.
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forks: Vm2OpPostMergeAndLater,
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name: "random",
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info: "Get current block's EIP-4399 randomness",
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exec: (prep: vm2OpIgnore,
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run: randomOp,
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post: vm2OpIgnore))]
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# ------------------------------------------------------------------------------
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@ -81,6 +81,9 @@ const
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Vm2OpLondonAndLater* =
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Vm2OpBerlinAndLater - {FkBerlin}
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Vm2OpPostMergeAndLater* =
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Vm2OpLondonAndLater - {FkLondon}
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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@ -58,6 +58,7 @@ proc init(
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timestamp: EthTime;
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gasLimit: GasInt;
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fee: Option[Uint256];
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random: Hash256;
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miner: EthAddress;
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chainDB: BaseChainDB;
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tracer: TransactionTracer)
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@ -69,6 +70,7 @@ proc init(
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self.timestamp = timestamp
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self.gasLimit = gasLimit
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self.fee = fee
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self.random = random
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self.chaindb = chainDB
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self.tracer = tracer
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self.logEntries = @[]
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@ -83,6 +85,7 @@ proc init(
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timestamp: EthTime;
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gasLimit: GasInt;
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fee: Option[Uint256];
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random: Hash256;
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miner: EthAddress;
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chainDB: BaseChainDB;
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tracerFlags: set[TracerFlags])
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@ -95,6 +98,7 @@ proc init(
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timestamp = timestamp,
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gasLimit = gasLimit,
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fee = fee,
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random = random,
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miner = miner,
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chainDB = chainDB,
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tracer = tracer)
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@ -116,6 +120,7 @@ proc new*(
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timestamp: EthTime; ## tx env: time stamp
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gasLimit: GasInt; ## tx env: gas limit
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fee: Option[Uint256]; ## tx env: optional base fee
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random: Hash256; ## tx env: POS block randomness
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miner: EthAddress; ## tx env: coinbase(PoW) or signer(PoA)
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chainDB: BaseChainDB; ## block chain database
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tracerFlags: set[TracerFlags] = {};
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@ -135,6 +140,7 @@ proc new*(
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timestamp = timestamp,
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gasLimit = gasLimit,
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fee = fee,
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random = random,
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miner = miner,
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chainDB = chainDB,
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tracerFlags = tracerFlags)
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@ -144,6 +150,7 @@ proc reinit*(self: BaseVMState; ## Object descriptor
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timestamp: EthTime; ## tx env: time stamp
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gasLimit: GasInt; ## tx env: gas limit
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fee: Option[Uint256]; ## tx env: optional base fee
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random: Hash256; ## tx env: POS block randomness
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miner: EthAddress; ## tx env: coinbase(PoW) or signer(PoA)
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pruneTrie: bool = true): bool
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{.gcsafe, raises: [Defect,CatchableError].} =
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@ -168,6 +175,7 @@ proc reinit*(self: BaseVMState; ## Object descriptor
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timestamp = timestamp,
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gasLimit = gasLimit,
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fee = fee,
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random = random,
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miner = miner,
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chainDB = db,
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tracer = tracer)
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@ -190,6 +198,7 @@ proc reinit*(self: BaseVMState; ## Object descriptor
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timestamp = header.timestamp,
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gasLimit = header.gasLimit,
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fee = header.fee,
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random = header.random,
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miner = self.chainDB.getMinerAddress(header),
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pruneTrie = pruneTrie)
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@ -226,6 +235,7 @@ proc init*(
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header.timestamp,
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header.gasLimit,
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header.fee,
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header.random,
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chainDB.getMinerAddress(header),
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chainDB,
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tracerFlags)
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@ -29,6 +29,7 @@ type
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timestamp* : EthTime
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gasLimit* : GasInt
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fee* : Option[Uint256]
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random* : Hash256
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name* : string
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flags* : set[VMFlag]
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tracer* : TransactionTracer
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