Merge pull request #103 from gavofyork/evm

EVM Interpreter

Cargo.toml

@@ -20,5 +20,5 @@ time = "0.1"
 evmjit = { path = "rust-evmjit", optional = true }
 
 [features]
-default = ["jit"]
 jit = ["evmjit"]
+evm_debug = []

res/ethereum/frontier_like_test.json

@@ -0,0 +1,34 @@
+{
+	"engineName": "Frontier (Test)",
+	"engineName": "Ethash",
+	"params": {
+		"accountStartNonce": "0x00",
+		"frontierCompatibilityModeLimit": "0x0dbba0",
+		"maximumExtraDataSize": "0x20",
+		"tieBreakingGas": false,
+		"minGasLimit": "0x1388",
+		"gasLimitBoundDivisor": "0x0400",
+		"minimumDifficulty": "0x020000",
+		"difficultyBoundDivisor": "0x0800",
+		"durationLimit": "0x0d",
+		"blockReward": "0x4563918244F40000",
+		"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
+		"networkID" : "0x1"
+	},
+	"genesis": {
+		"nonce": "0x0000000000000042",
+		"difficulty": "0x400000000",
+		"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+		"author": "0x0000000000000000000000000000000000000000",
+		"timestamp": "0x00",
+		"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+		"extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
+		"gasLimit": "0x1388"
+	},
+	"accounts": {
+		"0000000000000000000000000000000000000001": { "builtin": { "name": "ecrecover", "linear": { "base": 3000, "word": 0 } } },
+		"0000000000000000000000000000000000000002": { "builtin": { "name": "sha256", "linear": { "base": 60, "word": 12 } } },
+		"0000000000000000000000000000000000000003": { "builtin": { "name": "ripemd160", "linear": { "base": 600, "word": 120 } } },
+		"0000000000000000000000000000000000000004": { "builtin": { "name": "identity", "linear": { "base": 15, "word": 3 } } }
+	}
+}

src/engine.rs

@@ -2,6 +2,7 @@ use common::*;
 use block::Block;
 use spec::Spec;
 use evm::Schedule;
+use evm::Factory;
 
 /// A consensus mechanism for the chain. Generally either proof-of-work or proof-of-stake-based.
 /// Provides hooks into each of the major parts of block import.
@@ -22,6 +23,9 @@ pub trait Engine : Sync + Send {
 	/// Get the general parameters of the chain.
 	fn spec(&self) -> &Spec;
 
+	/// Get current EVM factory
+	fn vm_factory(&self) -> &Factory;
+
 	/// Get the EVM schedule for the given `env_info`.
 	fn schedule(&self, env_info: &EnvInfo) -> Schedule;
 

src/ethereum/ethash.rs

@@ -3,11 +3,13 @@ use block::*;
 use spec::*;
 use engine::*;
 use evm::Schedule;
+use evm::Factory;
 
 /// Engine using Ethash proof-of-work consensus algorithm, suitable for Ethereum
 /// mainnet chains in the Olympic, Frontier and Homestead eras.
 pub struct Ethash {
 	spec: Spec,
+	factory: Factory,
 	u64_params: RwLock<HashMap<String, u64>>,
 	u256_params: RwLock<HashMap<String, U256>>,
 }
@@ -16,8 +18,10 @@ impl Ethash {
 	pub fn new_boxed(spec: Spec) -> Box<Engine> {
 		Box::new(Ethash{
 			spec: spec,
+			// TODO [todr] should this return any specific factory?
+			factory: Factory::default(),
 			u64_params: RwLock::new(HashMap::new()),
-			u256_params: RwLock::new(HashMap::new()),
+			u256_params: RwLock::new(HashMap::new())
 		})
 	}
 
@@ -43,6 +47,11 @@ impl Engine for Ethash {
 	/// Additional engine-specific information for the user/developer concerning `header`.
 	fn extra_info(&self, _header: &Header) -> HashMap<String, String> { HashMap::new() }
 	fn spec(&self) -> &Spec { &self.spec }
+
+	fn vm_factory(&self) -> &Factory {
+		&self.factory
+	}
+
 	fn schedule(&self, env_info: &EnvInfo) -> Schedule {
 		match env_info.number < self.u64_param("frontierCompatibilityModeLimit") {
 			true => Schedule::new_frontier(),

src/ethereum/mod.rs

@@ -23,6 +23,9 @@ pub fn new_frontier_test() -> Spec { Spec::from_json_utf8(include_bytes!("../../
 /// Create a new Homestead chain spec as though it never changed from Frontier.
 pub fn new_homestead_test() -> Spec { Spec::from_json_utf8(include_bytes!("../../res/ethereum/homestead_test.json")) }
 
+/// Create a new Frontier main net chain spec without genesis accounts.
+pub fn new_frontier_like_test() -> Spec { Spec::from_json_utf8(include_bytes!("../../res/ethereum/frontier_like_test.json")) }
+
 /// Create a new Morden chain spec.
 pub fn new_morden() -> Spec { Spec::from_json_utf8(include_bytes!("../../res/ethereum/morden.json")) }
 

src/evm/evm.rs

@@ -12,6 +12,28 @@ pub enum Error {
 	/// was invalid. Balance still should be transfered and nonce
 	/// should be increased.
 	OutOfGas,
+	/// `BadJumpDestination` is returned when execution tried to move
+	/// to position that wasn't marked with JUMPDEST instruction
+	BadJumpDestination {
+		destination: usize
+	},
+	/// `BadInstructions` is returned when given instruction is not supported
+	BadInstruction {
+		instruction: u8,
+	},
+	/// `StackUnderflow` when there is not enough stack elements to execute instruction
+	/// First parameter says how many elements were needed and the second how many were actually on Stack
+	StackUnderflow {
+		instruction: &'static str,
+		wanted: usize, 
+		on_stack: usize
+	},
+	/// When execution would exceed defined Stack Limit
+	OutOfStack {
+		instruction: &'static str,
+		wanted: usize, 
+		limit: usize
+	},
 	/// Returned on evm internal error. Should never be ignored during development.
 	/// Likely to cause consensus issues.
 	Internal,

src/evm/ext.rs

@@ -1,8 +1,8 @@
 //! Interface for Evm externalities.
 
+use common::Bytes;
 use util::hash::*;
 use util::uint::*;
-use util::bytes::*;
 use evm::{Schedule, Error};
 use env_info::*;
 
@@ -61,10 +61,10 @@ pub trait Ext {
 			output: &mut [u8]) -> MessageCallResult;
 
 	/// Returns code at given address
-	fn extcode(&self, address: &Address) -> Vec<u8>;
+	fn extcode(&self, address: &Address) -> Bytes;
 
 	/// Creates log entry with given topics and data
-	fn log(&mut self, topics: Vec<H256>, data: Bytes);
+	fn log(&mut self, topics: Vec<H256>, data: &[u8]);
 
 	/// Should be called when transaction calls `RETURN` opcode.
 	/// Returns gas_left if cost of returning the data is not too high.

src/evm/factory.rs

@@ -1,25 +1,123 @@
 //! Evm factory.
-
+use std::fmt;
 use evm::Evm;
 
+#[derive(Clone)]
+pub enum VMType {
+	Jit,
+	Interpreter
+}
+
+impl fmt::Display for VMType {
+	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+		write!(f, "{}", match *self {
+			VMType::Jit => "JIT",
+			VMType::Interpreter => "INT"
+		})
+	}
+}
+
+impl VMType {
+	/// Return all possible VMs (JIT, Interpreter)
+	#[cfg(feature="jit")]
+	pub fn all() -> Vec<VMType> {
+		vec![VMType::Jit, VMType::Interpreter]
+	}
+
+	/// Return all possible VMs (Interpreter)
+	#[cfg(not(feature="jit"))]
+	pub fn all() -> Vec<VMType> {
+		vec![VMType::Interpreter]
+	}
+}
+
 /// Evm factory. Creates appropriate Evm.
-pub struct Factory;
+pub struct Factory {
+	evm : VMType
+}
 
 impl Factory {
-	/// Returns jit vm
+	/// Create fresh instance of VM
+	pub fn create(&self) -> Box<Evm> {
+		match self.evm {
+			VMType::Jit => {
+				Factory::jit()
+			},
+			VMType::Interpreter => {
+				Box::new(super::interpreter::Interpreter)
+			}
+		}	
+	}
+
+	/// Create new instance of specific `VMType` factory
+	pub fn new(evm: VMType) -> Factory {
+		Factory {
+			evm: evm
+		}
+	}
+
 	#[cfg(feature = "jit")]
-	pub fn create() -> Box<Evm> {
+	fn jit() -> Box<Evm> {
 		Box::new(super::jit::JitEvm)
 	}
 
-	/// Returns native rust evm
 	#[cfg(not(feature = "jit"))]
-	pub fn create() -> Box<Evm> {
+	fn jit() -> Box<Evm> {
-		unimplemented!();
+		unimplemented!()
+	}
+
+	/// Returns jitvm factory
+	#[cfg(feature = "jit")]
+	pub fn default() -> Factory {
+		Factory {
+			evm: VMType::Jit
+		}
+	}
+
+	/// Returns native rust evm factory
+	#[cfg(not(feature = "jit"))]
+	pub fn default() -> Factory {
+		Factory {
+			evm: VMType::Interpreter
+		}
 	}
 }
 
 #[test]
 fn test_create_vm() {
-	let _vm = Factory::create();
+	let _vm = Factory::default().create();
 }
+
+/// Create tests by injecting different VM factories
+#[macro_export]
+macro_rules! evm_test(
+	($name_test: ident: $name_jit: ident, $name_int: ident) => {
+		#[test]
+		#[cfg(feature = "jit")]
+		fn $name_jit() {
+			$name_test(Factory::new(VMType::Jit));
+		}
+		#[test]
+		fn $name_int() {
+			$name_test(Factory::new(VMType::Interpreter));
+		}
+	}
+);
+
+/// Create ignored tests by injecting different VM factories
+#[macro_export]
+macro_rules! evm_test_ignore(
+	($name_test: ident: $name_jit: ident, $name_int: ident) => {
+		#[test]
+		#[ignore]
+		#[cfg(feature = "jit")]
+		fn $name_jit() {
+			$name_test(Factory::new(VMType::Jit));
+		}
+		#[test]
+		#[ignore]
+		fn $name_int() {
+			$name_test(Factory::new(VMType::Interpreter));
+		}
+	}
+);

src/evm/instructions.rs

@@ -0,0 +1,534 @@
+//! VM Instructions list and utility functions
+
+pub type Instruction = u8;
+
+/// Returns true if given instruction is `PUSHN` instruction.
+pub fn is_push(i: Instruction) -> bool {
+	i >= PUSH1 && i <= PUSH32
+}
+
+/// Returns number of bytes to read for `PUSHN` instruction
+/// PUSH1 -> 1
+pub fn get_push_bytes(i: Instruction) -> usize {
+	assert!(is_push(i), "Only for PUSH instructions.");
+	(i - PUSH1 + 1) as usize
+}
+
+#[test]
+fn test_get_push_bytes() {
+	assert_eq!(get_push_bytes(PUSH1), 1);
+	assert_eq!(get_push_bytes(PUSH3), 3);
+	assert_eq!(get_push_bytes(PUSH32), 32);
+}
+
+/// Returns stack position of item to duplicate
+/// DUP1 -> 0
+pub fn get_dup_position(i: Instruction) -> usize {
+	assert!(i >= DUP1 && i <= DUP16);
+	(i - DUP1) as usize
+}
+
+#[test]
+fn test_get_dup_position() {
+	assert_eq!(get_dup_position(DUP1), 0);
+	assert_eq!(get_dup_position(DUP5), 4);
+	assert_eq!(get_dup_position(DUP10), 9);
+}
+
+/// Returns stack position of item to SWAP top with
+/// SWAP1 -> 1
+pub fn get_swap_position(i: Instruction) -> usize {
+	assert!(i >= SWAP1 && i <= SWAP16);
+	(i - SWAP1 + 1) as usize
+}
+
+#[test]
+fn test_get_swap_position() {
+	assert_eq!(get_swap_position(SWAP1), 1);
+	assert_eq!(get_swap_position(SWAP5), 5);
+	assert_eq!(get_swap_position(SWAP10), 10);
+}
+
+/// Returns number of topcis to take from stack
+/// LOG0 -> 0
+pub fn get_log_topics (i: Instruction) -> usize {
+	assert!(i >= LOG0 && i <= LOG4);
+	(i - LOG0) as usize
+}
+
+#[test]
+fn test_get_log_topics() {
+	assert_eq!(get_log_topics(LOG0), 0);
+	assert_eq!(get_log_topics(LOG2), 2);
+	assert_eq!(get_log_topics(LOG4), 4);
+}
+
+#[derive(PartialEq)]
+pub enum GasPriceTier {
+	/// 0 Zero
+	Zero,
+	/// 2 Quick
+	Base,
+	/// 3 Fastest
+	VeryLow,
+	/// 5 Fast
+	Low,
+	/// 8 Mid
+	Mid,
+	/// 10 Slow
+	High,
+	/// 20 Ext
+	Ext,
+	/// Multiparam or otherwise special
+	Special,
+	/// Invalid
+	Invalid
+}
+
+/// Returns the index in schedule for specific `GasPriceTier`
+pub fn get_tier_idx (tier: GasPriceTier) -> usize {
+	match tier {
+		GasPriceTier::Zero => 0,
+		GasPriceTier::Base => 1,
+		GasPriceTier::VeryLow => 2,
+		GasPriceTier::Low => 3,
+		GasPriceTier::Mid => 4,
+		GasPriceTier::High => 5,
+		GasPriceTier::Ext => 6,
+		GasPriceTier::Special => 7,
+		GasPriceTier::Invalid => 8
+	}
+}
+
+pub struct InstructionInfo {
+	pub name: &'static str,
+	pub additional: usize,
+	pub args: usize,
+	pub ret: usize,
+	pub side_effects: bool,
+	pub tier: GasPriceTier
+}
+impl InstructionInfo {
+	pub fn new(name: &'static str, additional: usize, args: usize, ret: usize, side_effects: bool, tier: GasPriceTier) -> InstructionInfo {
+		InstructionInfo {
+			name: name,
+			additional: additional,
+			args: args,
+			ret: ret,
+			side_effects: side_effects,
+			tier: tier
+		}
+	}
+}
+
+/// Return details about specific instruction
+pub fn get_info (instruction: Instruction) -> InstructionInfo {
+	match instruction {
+		STOP => 		InstructionInfo::new("STOP",			0, 0, 0, true, GasPriceTier::Zero),
+		ADD => 			InstructionInfo::new("ADD",				0, 2, 1, false, GasPriceTier::VeryLow),
+		SUB => 			InstructionInfo::new("SUB",				0, 2, 1, false, GasPriceTier::VeryLow),
+		MUL => 			InstructionInfo::new("MUL",				0, 2, 1, false, GasPriceTier::Low),
+		DIV => 			InstructionInfo::new("DIV",				0, 2, 1, false, GasPriceTier::Low),
+		SDIV => 		InstructionInfo::new("SDIV",			0, 2, 1, false, GasPriceTier::Low),
+		MOD => 			InstructionInfo::new("MOD",				0, 2, 1, false, GasPriceTier::Low),
+		SMOD => 		InstructionInfo::new("SMOD",			0, 2, 1, false, GasPriceTier::Low),
+		EXP => 			InstructionInfo::new("EXP",				0, 2, 1, false, GasPriceTier::Special),
+		NOT => 			InstructionInfo::new("NOT",				0, 1, 1, false, GasPriceTier::VeryLow),
+		LT => 			InstructionInfo::new("LT",				0, 2, 1, false, GasPriceTier::VeryLow),
+		GT => 			InstructionInfo::new("GT",				0, 2, 1, false, GasPriceTier::VeryLow),
+		SLT => 			InstructionInfo::new("SLT",				0, 2, 1, false, GasPriceTier::VeryLow),
+		SGT => 			InstructionInfo::new("SGT",				0, 2, 1, false, GasPriceTier::VeryLow),
+		EQ => 			InstructionInfo::new("EQ",				0, 2, 1, false, GasPriceTier::VeryLow),
+		ISZERO => 		InstructionInfo::new("ISZERO",			0, 1, 1, false, GasPriceTier::VeryLow),
+		AND => 			InstructionInfo::new("AND",				0, 2, 1, false, GasPriceTier::VeryLow),
+		OR => 			InstructionInfo::new("OR",				0, 2, 1, false, GasPriceTier::VeryLow),
+		XOR => 			InstructionInfo::new("XOR",				0, 2, 1, false, GasPriceTier::VeryLow),
+		BYTE => 		InstructionInfo::new("BYTE",			0, 2, 1, false, GasPriceTier::VeryLow),
+		ADDMOD => 		InstructionInfo::new("ADDMOD",			0, 3, 1, false, GasPriceTier::Mid),
+		MULMOD => 		InstructionInfo::new("MULMOD",			0, 3, 1, false, GasPriceTier::Mid),
+		SIGNEXTEND => 	InstructionInfo::new("SIGNEXTEND",		0, 2, 1, false, GasPriceTier::Low),
+		SHA3 => 		InstructionInfo::new("SHA3",			0, 2, 1, false, GasPriceTier::Special),
+		ADDRESS => 		InstructionInfo::new("ADDRESS",			0, 0, 1, false, GasPriceTier::Base),
+		BALANCE => 		InstructionInfo::new("BALANCE",			0, 1, 1, false, GasPriceTier::Ext),
+		ORIGIN => 		InstructionInfo::new("ORIGIN",			0, 0, 1, false, GasPriceTier::Base),
+		CALLER => 		InstructionInfo::new("CALLER",			0, 0, 1, false, GasPriceTier::Base),
+		CALLVALUE => 	InstructionInfo::new("CALLVALUE",		0, 0, 1, false, GasPriceTier::Base),
+		CALLDATALOAD => InstructionInfo::new("CALLDATALOAD",	0, 1, 1, false, GasPriceTier::VeryLow),
+		CALLDATASIZE => InstructionInfo::new("CALLDATASIZE",	0, 0, 1, false, GasPriceTier::Base),
+		CALLDATACOPY => InstructionInfo::new("CALLDATACOPY",	0, 3, 0, true, GasPriceTier::VeryLow),
+		CODESIZE => 	InstructionInfo::new("CODESIZE",		0, 0, 1, false, GasPriceTier::Base),
+		CODECOPY => 	InstructionInfo::new("CODECOPY",		0, 3, 0, true, GasPriceTier::VeryLow),
+		GASPRICE => 	InstructionInfo::new("GASPRICE",		0, 0, 1, false, GasPriceTier::Base),
+		EXTCODESIZE => 	InstructionInfo::new("EXTCODESIZE",		0, 1, 1, false, GasPriceTier::Ext),
+		EXTCODECOPY => 	InstructionInfo::new("EXTCODECOPY",		0, 4, 0, true, GasPriceTier::Ext),
+		BLOCKHASH => 	InstructionInfo::new("BLOCKHASH",		0, 1, 1, false, GasPriceTier::Ext),
+		COINBASE => 	InstructionInfo::new("COINBASE",		0, 0, 1, false, GasPriceTier::Base),
+		TIMESTAMP => 	InstructionInfo::new("TIMESTAMP",		0, 0, 1, false, GasPriceTier::Base),
+		NUMBER => 		InstructionInfo::new("NUMBER",			0, 0, 1, false, GasPriceTier::Base),
+		DIFFICULTY => 	InstructionInfo::new("DIFFICULTY",		0, 0, 1, false, GasPriceTier::Base),
+		GASLIMIT => 	InstructionInfo::new("GASLIMIT",		0, 0, 1, false, GasPriceTier::Base),
+		POP => 			InstructionInfo::new("POP",				0, 1, 0, false, GasPriceTier::Base),
+		MLOAD => 		InstructionInfo::new("MLOAD",			0, 1, 1, false, GasPriceTier::VeryLow),
+		MSTORE => 		InstructionInfo::new("MSTORE",			0, 2, 0, true, GasPriceTier::VeryLow),
+		MSTORE8 => 		InstructionInfo::new("MSTORE8",			0, 2, 0, true, GasPriceTier::VeryLow),
+		SLOAD => 		InstructionInfo::new("SLOAD",			0, 1, 1, false, GasPriceTier::Special),
+		SSTORE => 		InstructionInfo::new("SSTORE",			0, 2, 0, true, GasPriceTier::Special),
+		JUMP => 		InstructionInfo::new("JUMP",			0, 1, 0, true, GasPriceTier::Mid),
+		JUMPI => 		InstructionInfo::new("JUMPI",			0, 2, 0, true, GasPriceTier::High),
+		PC => 			InstructionInfo::new("PC",				0, 0, 1, false, GasPriceTier::Base),
+		MSIZE => 		InstructionInfo::new("MSIZE",			0, 0, 1, false, GasPriceTier::Base),
+		GAS => 			InstructionInfo::new("GAS",				0, 0, 1, false, GasPriceTier::Base),
+		JUMPDEST => 	InstructionInfo::new("JUMPDEST",		0, 0, 0, true, GasPriceTier::Special),
+		PUSH1 => 		InstructionInfo::new("PUSH1",			1, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH2 => 		InstructionInfo::new("PUSH2",			2, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH3 => 		InstructionInfo::new("PUSH3",			3, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH4 => 		InstructionInfo::new("PUSH4",			4, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH5 => 		InstructionInfo::new("PUSH5",			5, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH6 => 		InstructionInfo::new("PUSH6",			6, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH7 => 		InstructionInfo::new("PUSH7",			7, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH8 => 		InstructionInfo::new("PUSH8",			8, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH9 => 		InstructionInfo::new("PUSH9",			9, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH10 => 		InstructionInfo::new("PUSH10",			10, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH11 => 		InstructionInfo::new("PUSH11",			11, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH12 => 		InstructionInfo::new("PUSH12",			12, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH13 => 		InstructionInfo::new("PUSH13",			13, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH14 => 		InstructionInfo::new("PUSH14",			14, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH15 => 		InstructionInfo::new("PUSH15",			15, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH16 => 		InstructionInfo::new("PUSH16",			16, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH17 => 		InstructionInfo::new("PUSH17",			17, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH18 => 		InstructionInfo::new("PUSH18",			18, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH19 => 		InstructionInfo::new("PUSH19",			19, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH20 => 		InstructionInfo::new("PUSH20",			20, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH21 => 		InstructionInfo::new("PUSH21",			21, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH22 => 		InstructionInfo::new("PUSH22",			22, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH23 => 		InstructionInfo::new("PUSH23",			23, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH24 => 		InstructionInfo::new("PUSH24",			24, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH25 => 		InstructionInfo::new("PUSH25",			25, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH26 => 		InstructionInfo::new("PUSH26",			26, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH27 => 		InstructionInfo::new("PUSH27",			27, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH28 => 		InstructionInfo::new("PUSH28",			28, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH29 => 		InstructionInfo::new("PUSH29",			29, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH30 => 		InstructionInfo::new("PUSH30",			30, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH31 => 		InstructionInfo::new("PUSH31",			31, 0, 1, false, GasPriceTier::VeryLow),
+		PUSH32 => 		InstructionInfo::new("PUSH32",			32, 0, 1, false, GasPriceTier::VeryLow),
+		DUP1 => 		InstructionInfo::new("DUP1",			0, 1, 2, false, GasPriceTier::VeryLow),
+		DUP2 => 		InstructionInfo::new("DUP2",			0, 2, 3, false, GasPriceTier::VeryLow),
+		DUP3 => 		InstructionInfo::new("DUP3",			0, 3, 4, false, GasPriceTier::VeryLow),
+		DUP4 => 		InstructionInfo::new("DUP4",			0, 4, 5, false, GasPriceTier::VeryLow),
+		DUP5 => 		InstructionInfo::new("DUP5",			0, 5, 6, false, GasPriceTier::VeryLow),
+		DUP6 => 		InstructionInfo::new("DUP6",			0, 6, 7, false, GasPriceTier::VeryLow),
+		DUP7 => 		InstructionInfo::new("DUP7",			0, 7, 8, false, GasPriceTier::VeryLow),
+		DUP8 => 		InstructionInfo::new("DUP8",			0, 8, 9, false, GasPriceTier::VeryLow),
+		DUP9 => 		InstructionInfo::new("DUP9",			0, 9, 10, false, GasPriceTier::VeryLow),
+		DUP10 => 		InstructionInfo::new("DUP10",			0, 10, 11, false, GasPriceTier::VeryLow),
+		DUP11 => 		InstructionInfo::new("DUP11",			0, 11, 12, false, GasPriceTier::VeryLow),
+		DUP12 => 		InstructionInfo::new("DUP12",			0, 12, 13, false, GasPriceTier::VeryLow),
+		DUP13 => 		InstructionInfo::new("DUP13",			0, 13, 14, false, GasPriceTier::VeryLow),
+		DUP14 => 		InstructionInfo::new("DUP14",			0, 14, 15, false, GasPriceTier::VeryLow),
+		DUP15 => 		InstructionInfo::new("DUP15",			0, 15, 16, false, GasPriceTier::VeryLow),
+		DUP16 => 		InstructionInfo::new("DUP16",			0, 16, 17, false, GasPriceTier::VeryLow),
+		SWAP1 => 		InstructionInfo::new("SWAP1",			0, 2, 2, false, GasPriceTier::VeryLow),
+		SWAP2 => 		InstructionInfo::new("SWAP2",			0, 3, 3, false, GasPriceTier::VeryLow),
+		SWAP3 => 		InstructionInfo::new("SWAP3",			0, 4, 4, false, GasPriceTier::VeryLow),
+		SWAP4 => 		InstructionInfo::new("SWAP4",			0, 5, 5, false, GasPriceTier::VeryLow),
+		SWAP5 => 		InstructionInfo::new("SWAP5",			0, 6, 6, false, GasPriceTier::VeryLow),
+		SWAP6 => 		InstructionInfo::new("SWAP6",			0, 7, 7, false, GasPriceTier::VeryLow),
+		SWAP7 => 		InstructionInfo::new("SWAP7",			0, 8, 8, false, GasPriceTier::VeryLow),
+		SWAP8 => 		InstructionInfo::new("SWAP8",			0, 9, 9, false, GasPriceTier::VeryLow),
+		SWAP9 => 		InstructionInfo::new("SWAP9",			0, 10, 10, false, GasPriceTier::VeryLow),
+		SWAP10 => 		InstructionInfo::new("SWAP10",			0, 11, 11, false, GasPriceTier::VeryLow),
+		SWAP11 => 		InstructionInfo::new("SWAP11",			0, 12, 12, false, GasPriceTier::VeryLow),
+		SWAP12 => 		InstructionInfo::new("SWAP12",			0, 13, 13, false, GasPriceTier::VeryLow),
+		SWAP13 => 		InstructionInfo::new("SWAP13",			0, 14, 14, false, GasPriceTier::VeryLow),
+		SWAP14 => 		InstructionInfo::new("SWAP14",			0, 15, 15, false, GasPriceTier::VeryLow),
+		SWAP15 => 		InstructionInfo::new("SWAP15",			0, 16, 16, false, GasPriceTier::VeryLow),
+		SWAP16 => 		InstructionInfo::new("SWAP16",			0, 17, 17, false, GasPriceTier::VeryLow),
+		LOG0 => 		InstructionInfo::new("LOG0",			0, 2, 0, true, GasPriceTier::Special),
+		LOG1 => 		InstructionInfo::new("LOG1",			0, 3, 0, true, GasPriceTier::Special),
+		LOG2 => 		InstructionInfo::new("LOG2",			0, 4, 0, true, GasPriceTier::Special),
+		LOG3 => 		InstructionInfo::new("LOG3",			0, 5, 0, true, GasPriceTier::Special),
+		LOG4 => 		InstructionInfo::new("LOG4",			0, 6, 0, true, GasPriceTier::Special),
+		CREATE => 		InstructionInfo::new("CREATE",			0, 3, 1, true, GasPriceTier::Special),
+		CALL => 		InstructionInfo::new("CALL",			0, 7, 1, true, GasPriceTier::Special),
+		CALLCODE => 	InstructionInfo::new("CALLCODE",		0, 7, 1, true, GasPriceTier::Special),
+		RETURN => 		InstructionInfo::new("RETURN",			0, 2, 0, true, GasPriceTier::Zero),
+		DELEGATECALL => InstructionInfo::new("DELEGATECALL",	0, 6, 1, true, GasPriceTier::Special),
+		SUICIDE => 		InstructionInfo::new("SUICIDE",			0, 1, 0, true, GasPriceTier::Zero),
+		_ => InstructionInfo::new("INVALID_INSTRUCTION", 0, 0, 0, false, GasPriceTier::Invalid)
+	}
+}
+
+/// Virtual machine bytecode instruction.
+/// halts execution
+pub const STOP: Instruction = 0x00;
+/// addition operation
+pub const ADD: Instruction = 0x01;
+/// mulitplication operation
+pub const MUL: Instruction = 0x02;
+/// subtraction operation
+pub const SUB: Instruction = 0x03;
+/// integer division operation
+pub const DIV: Instruction = 0x04;
+/// signed integer division operation
+pub const SDIV: Instruction = 0x05;
+/// modulo remainder operation
+pub const MOD: Instruction = 0x06;
+/// signed modulo remainder operation
+pub const SMOD: Instruction = 0x07;
+/// unsigned modular addition
+pub const ADDMOD: Instruction = 0x08;
+/// unsigned modular multiplication
+pub const MULMOD: Instruction = 0x09;
+/// exponential operation
+pub const EXP: Instruction = 0x0a;
+/// extend length of signed integer
+pub const SIGNEXTEND: Instruction = 0x0b;
+
+/// less-than comparision
+pub const LT: Instruction = 0x10;		
+/// greater-than comparision
+pub const GT: Instruction = 0x11;
+/// signed less-than comparision
+pub const SLT: Instruction = 0x12;
+/// signed greater-than comparision
+pub const SGT: Instruction = 0x13;
+/// equality comparision
+pub const EQ: Instruction = 0x14;
+/// simple not operator
+pub const ISZERO: Instruction = 0x15;
+/// bitwise AND operation
+pub const AND: Instruction = 0x16;
+/// bitwise OR operation
+pub const OR: Instruction = 0x17;
+/// bitwise XOR operation
+pub const XOR: Instruction = 0x18;
+/// bitwise NOT opertation
+pub const NOT: Instruction = 0x19;
+/// retrieve single byte from word
+pub const BYTE: Instruction = 0x1a;
+
+/// compute SHA3-256 hash
+pub const SHA3: Instruction = 0x20;	
+
+/// get address of currently executing account
+pub const ADDRESS: Instruction = 0x30;	
+/// get balance of the given account
+pub const BALANCE: Instruction = 0x31;
+/// get execution origination address
+pub const ORIGIN: Instruction = 0x32;
+/// get caller address
+pub const CALLER: Instruction = 0x33;
+/// get deposited value by the instruction/transaction responsible for this execution
+pub const CALLVALUE: Instruction = 0x34;
+/// get input data of current environment
+pub const CALLDATALOAD: Instruction = 0x35;
+/// get size of input data in current environment
+pub const CALLDATASIZE: Instruction = 0x36;
+/// copy input data in current environment to memory
+pub const CALLDATACOPY: Instruction = 0x37;
+/// get size of code running in current environment
+pub const CODESIZE: Instruction = 0x38;
+/// copy code running in current environment to memory
+pub const CODECOPY: Instruction = 0x39;
+/// get price of gas in current environment
+pub const GASPRICE: Instruction = 0x3a;
+/// get external code size (from another contract)
+pub const EXTCODESIZE: Instruction = 0x3b;
+/// copy external code (from another contract)
+pub const EXTCODECOPY: Instruction = 0x3c;
+
+/// get hash of most recent complete block
+pub const BLOCKHASH: Instruction = 0x40;
+/// get the block's coinbase address
+pub const COINBASE: Instruction = 0x41;
+/// get the block's timestamp
+pub const TIMESTAMP: Instruction = 0x42;
+/// get the block's number
+pub const NUMBER: Instruction = 0x43;
+/// get the block's difficulty
+pub const DIFFICULTY: Instruction = 0x44;
+/// get the block's gas limit
+pub const GASLIMIT: Instruction = 0x45;
+
+/// remove item from stack
+pub const POP: Instruction = 0x50;		
+/// load word from memory
+pub const MLOAD: Instruction = 0x51;
+/// save word to memory
+pub const MSTORE: Instruction = 0x52;
+/// save byte to memory
+pub const MSTORE8: Instruction = 0x53;
+/// load word from storage
+pub const SLOAD: Instruction = 0x54;
+/// save word to storage
+pub const SSTORE: Instruction = 0x55;
+/// alter the program counter
+pub const JUMP: Instruction = 0x56;
+/// conditionally alter the program counter
+pub const JUMPI: Instruction = 0x57;
+/// get the program counter
+pub const PC: Instruction = 0x58;
+/// get the size of active memory
+pub const MSIZE: Instruction = 0x59;
+/// get the amount of available gas
+pub const GAS: Instruction = 0x5a;
+/// set a potential jump destination
+pub const JUMPDEST: Instruction = 0x5b;
+
+/// place 1 byte item on stack
+pub const PUSH1: Instruction = 0x60;	
+/// place 2 byte item on stack
+pub const PUSH2: Instruction = 0x61;
+/// place 3 byte item on stack
+pub const PUSH3: Instruction = 0x62;
+/// place 4 byte item on stack
+pub const PUSH4: Instruction = 0x63;
+/// place 5 byte item on stack
+pub const PUSH5: Instruction = 0x64;
+/// place 6 byte item on stack
+pub const PUSH6: Instruction = 0x65;
+/// place 7 byte item on stack
+pub const PUSH7: Instruction = 0x66;
+/// place 8 byte item on stack
+pub const PUSH8: Instruction = 0x67;
+/// place 9 byte item on stack
+pub const PUSH9: Instruction = 0x68;
+/// place 10 byte item on stack
+pub const PUSH10: Instruction = 0x69;
+/// place 11 byte item on stack
+pub const PUSH11: Instruction = 0x6a;
+/// place 12 byte item on stack
+pub const PUSH12: Instruction = 0x6b;
+/// place 13 byte item on stack
+pub const PUSH13: Instruction = 0x6c;
+/// place 14 byte item on stack
+pub const PUSH14: Instruction = 0x6d;
+/// place 15 byte item on stack
+pub const PUSH15: Instruction = 0x6e;
+/// place 16 byte item on stack
+pub const PUSH16: Instruction = 0x6f;
+/// place 17 byte item on stack
+pub const PUSH17: Instruction = 0x70;
+/// place 18 byte item on stack
+pub const PUSH18: Instruction = 0x71;
+/// place 19 byte item on stack
+pub const PUSH19: Instruction = 0x72;
+/// place 20 byte item on stack
+pub const PUSH20: Instruction = 0x73;
+/// place 21 byte item on stack
+pub const PUSH21: Instruction = 0x74;
+/// place 22 byte item on stack
+pub const PUSH22: Instruction = 0x75;
+/// place 23 byte item on stack
+pub const PUSH23: Instruction = 0x76;
+/// place 24 byte item on stack
+pub const PUSH24: Instruction = 0x77;
+/// place 25 byte item on stack
+pub const PUSH25: Instruction = 0x78;
+/// place 26 byte item on stack
+pub const PUSH26: Instruction = 0x79;
+/// place 27 byte item on stack
+pub const PUSH27: Instruction = 0x7a;
+/// place 28 byte item on stack
+pub const PUSH28: Instruction = 0x7b;
+/// place 29 byte item on stack
+pub const PUSH29: Instruction = 0x7c;
+/// place 30 byte item on stack
+pub const PUSH30: Instruction = 0x7d;
+/// place 31 byte item on stack
+pub const PUSH31: Instruction = 0x7e;
+/// place 32 byte item on stack
+pub const PUSH32: Instruction = 0x7f;
+
+/// copies the highest item in the stack to the top of the stack
+pub const DUP1: Instruction = 0x80;	
+/// copies the second highest item in the stack to the top of the stack
+pub const DUP2: Instruction = 0x81;
+/// copies the third highest item in the stack to the top of the stack
+pub const DUP3: Instruction = 0x82;
+/// copies the 4th highest item in the stack to the top of the stack
+pub const DUP4: Instruction = 0x83;
+/// copies the 5th highest item in the stack to the top of the stack
+pub const DUP5: Instruction = 0x84;
+/// copies the 6th highest item in the stack to the top of the stack
+pub const DUP6: Instruction = 0x85;
+/// copies the 7th highest item in the stack to the top of the stack
+pub const DUP7: Instruction = 0x86;
+/// copies the 8th highest item in the stack to the top of the stack
+pub const DUP8: Instruction = 0x87;
+/// copies the 9th highest item in the stack to the top of the stack
+pub const DUP9: Instruction = 0x88;
+/// copies the 10th highest item in the stack to the top of the stack
+pub const DUP10: Instruction = 0x89;
+/// copies the 11th highest item in the stack to the top of the stack
+pub const DUP11: Instruction = 0x8a;
+/// copies the 12th highest item in the stack to the top of the stack
+pub const DUP12: Instruction = 0x8b;
+/// copies the 13th highest item in the stack to the top of the stack
+pub const DUP13: Instruction = 0x8c;
+/// copies the 14th highest item in the stack to the top of the stack
+pub const DUP14: Instruction = 0x8d;
+/// copies the 15th highest item in the stack to the top of the stack
+pub const DUP15: Instruction = 0x8e;
+/// copies the 16th highest item in the stack to the top of the stack
+pub const DUP16: Instruction = 0x8f;
+
+/// swaps the highest and second highest value on the stack
+pub const SWAP1: Instruction = 0x90;	
+/// swaps the highest and third highest value on the stack
+pub const SWAP2: Instruction = 0x91;
+/// swaps the highest and 4th highest value on the stack
+pub const SWAP3: Instruction = 0x92;
+/// swaps the highest and 5th highest value on the stack
+pub const SWAP4: Instruction = 0x93;
+/// swaps the highest and 6th highest value on the stack
+pub const SWAP5: Instruction = 0x94;
+/// swaps the highest and 7th highest value on the stack
+pub const SWAP6: Instruction = 0x95;
+/// swaps the highest and 8th highest value on the stack
+pub const SWAP7: Instruction = 0x96;
+/// swaps the highest and 9th highest value on the stack
+pub const SWAP8: Instruction = 0x97;
+/// swaps the highest and 10th highest value on the stack
+pub const SWAP9: Instruction = 0x98;
+/// swaps the highest and 11th highest value on the stack
+pub const SWAP10: Instruction = 0x99;
+/// swaps the highest and 12th highest value on the stack
+pub const SWAP11: Instruction = 0x9a;
+/// swaps the highest and 13th highest value on the stack
+pub const SWAP12: Instruction = 0x9b;
+/// swaps the highest and 14th highest value on the stack
+pub const SWAP13: Instruction = 0x9c;
+/// swaps the highest and 15th highest value on the stack
+pub const SWAP14: Instruction = 0x9d;
+/// swaps the highest and 16th highest value on the stack
+pub const SWAP15: Instruction = 0x9e;
+/// swaps the highest and 17th highest value on the stack
+pub const SWAP16: Instruction = 0x9f;
+
+/// Makes a log entry; no topics.
+pub const LOG0: Instruction = 0xa0;	
+/// Makes a log entry; 1 topic.
+pub const LOG1: Instruction = 0xa1;
+/// Makes a log entry; 2 topics.
+pub const LOG2: Instruction = 0xa2;
+/// Makes a log entry; 3 topics.
+pub const LOG3: Instruction = 0xa3;
+/// Makes a log entry; 4 topics.
+pub const LOG4: Instruction = 0xa4;
+/// Maximal number of topics for log instructions
+pub const MAX_NO_OF_TOPICS : usize = 4;
+
+/// create a new account with associated code
+pub const CREATE: Instruction = 0xf0;	
+/// message-call into an account
+pub const CALL: Instruction = 0xf1;
+/// message-call with another account's code only
+pub const CALLCODE: Instruction = 0xf2;
+/// halt execution returning output data
+pub const RETURN: Instruction = 0xf3;
+/// like CALLCODE but keeps caller's value and sender
+pub const DELEGATECALL: Instruction = 0xf4;
+/// halt execution and register account for later deletion
+pub const SUICIDE: Instruction = 0xff;	
+

src/evm/mod.rs

@@ -2,8 +2,11 @@
 
 pub mod ext;
 pub mod evm;
+pub mod interpreter;
+#[macro_use]
 pub mod factory;
 pub mod schedule;
+mod instructions;
 #[cfg(feature = "jit" )]
 mod jit;
 
@@ -14,3 +17,4 @@ pub use self::evm::{Evm, Error, Result};
 pub use self::ext::{Ext, ContractCreateResult, MessageCallResult};
 pub use self::factory::Factory;
 pub use self::schedule::Schedule;
+pub use self::factory::VMType;

src/evm/tests.rs

@@ -1,6 +1,6 @@
 use common::*;
 use evm;
-use evm::{Ext, Schedule, Factory, ContractCreateResult, MessageCallResult};
+use evm::{Ext, Schedule, Factory, VMType, ContractCreateResult, MessageCallResult};
 
 struct FakeLogEntry {
 	topics: Vec<H256>,
@@ -18,11 +18,20 @@ struct FakeExt {
 	codes: HashMap<Address, Bytes>,
 	logs: Vec<FakeLogEntry>,
 	_suicides: HashSet<Address>,
-	info: EnvInfo
+	info: EnvInfo,
+	_schedule: Schedule
 }
 
 impl FakeExt {
-	fn new() -> Self { FakeExt::default() }
+	fn new() -> Self { 
+		FakeExt::default()
+	}
+}
+
+impl Default for Schedule {
+	fn default() -> Self {
+		Schedule::new_frontier()
+	}
 }
 
 impl Ext for FakeExt {
@@ -60,14 +69,14 @@ impl Ext for FakeExt {
 		unimplemented!();
 	}
 
-	fn extcode(&self, address: &Address) -> Vec<u8> {
+	fn extcode(&self, address: &Address) -> Bytes {
 		self.codes.get(address).unwrap_or(&Bytes::new()).clone()
 	}
 
-	fn log(&mut self, topics: Vec<H256>, data: Bytes) {
+	fn log(&mut self, topics: Vec<H256>, data: &[u8]) {
 		self.logs.push(FakeLogEntry {
 			topics: topics,
-			data: data
+			data: data.to_vec()
 		});
 	}
 
@@ -80,7 +89,7 @@ impl Ext for FakeExt {
 	}
 
 	fn schedule(&self) -> &Schedule {
-		unimplemented!();
+		&self._schedule
 	}
 
 	fn env_info(&self) -> &EnvInfo {
@@ -97,8 +106,35 @@ impl Ext for FakeExt {
 }
 
 #[test]
-fn test_add() {
+fn test_stack_underflow() {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
+	let code = "01600055".from_hex().unwrap();
+
+	let mut params = ActionParams::new();
+	params.address = address.clone();
+	params.gas = U256::from(100_000);
+	params.code = Some(code);
+	let mut ext = FakeExt::new();
+
+	let err = {
+		let vm : Box<evm::Evm> = Box::new(super::interpreter::Interpreter);
+		vm.exec(params, &mut ext).unwrap_err()
+	};
+	
+	match err {
+		evm::Error::StackUnderflow {instruction: _, wanted, on_stack} => {
+			assert_eq!(wanted, 2);
+			assert_eq!(on_stack, 0);
+		}
+		_ => {
+			assert!(false, "Expected StackUndeflow")
+		}
+	};
+}
+
+evm_test!{test_add: test_add_jit, test_add_int}
+fn test_add(factory: super::Factory) {
+  let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let code = "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01600055".from_hex().unwrap();
 
 	let mut params = ActionParams::new();
@@ -108,7 +144,7 @@ fn test_add() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -116,8 +152,8 @@ fn test_add() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe").unwrap());
 }
 
-#[test]
+evm_test!{test_sha3: test_sha3_jit, test_sha3_int}
-fn test_sha3() {
+fn test_sha3(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let code = "6000600020600055".from_hex().unwrap();
 
@@ -128,7 +164,7 @@ fn test_sha3() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -136,8 +172,8 @@ fn test_sha3() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470").unwrap());
 }
 
-#[test]
+evm_test!{test_address: test_address_jit, test_address_int}
-fn test_address() {
+fn test_address(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let code = "30600055".from_hex().unwrap();
 
@@ -148,7 +184,7 @@ fn test_address() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -156,8 +192,8 @@ fn test_address() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("0000000000000000000000000f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap());
 }
 
-#[test]
+evm_test!{test_origin: test_origin_jit, test_origin_int}
-fn test_origin() {
+fn test_origin(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let origin = Address::from_str("cd1722f2947def4cf144679da39c4c32bdc35681").unwrap();
 	let code = "32600055".from_hex().unwrap();
@@ -170,7 +206,7 @@ fn test_origin() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -178,8 +214,8 @@ fn test_origin() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("000000000000000000000000cd1722f2947def4cf144679da39c4c32bdc35681").unwrap());
 }
 
-#[test]
+evm_test!{test_sender: test_sender_jit, test_sender_int}
-fn test_sender() {
+fn test_sender(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let sender = Address::from_str("cd1722f2947def4cf144679da39c4c32bdc35681").unwrap();
 	let code = "33600055".from_hex().unwrap();
@@ -192,7 +228,7 @@ fn test_sender() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -200,8 +236,8 @@ fn test_sender() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("000000000000000000000000cd1722f2947def4cf144679da39c4c32bdc35681").unwrap());
 }
 
-#[test]
+evm_test!{test_extcodecopy: test_extcodecopy_jit, test_extcodecopy_int}
-fn test_extcodecopy() {
+fn test_extcodecopy(factory: super::Factory) {
 		// 33 - sender
 		// 3b - extcodesize
 		// 60 00 - push 0
@@ -227,7 +263,7 @@ fn test_extcodecopy() {
 	ext.codes.insert(sender, sender_code);
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -235,8 +271,8 @@ fn test_extcodecopy() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("6005600055000000000000000000000000000000000000000000000000000000").unwrap());
 }
 
-#[test]
+evm_test!{test_log_empty: test_log_empty_jit, test_log_empty_int}
-fn test_log_empty() {
+fn test_log_empty(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let code = "60006000a0".from_hex().unwrap();
 
@@ -247,7 +283,7 @@ fn test_log_empty() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -257,8 +293,8 @@ fn test_log_empty() {
 	assert_eq!(ext.logs[0].data, vec![]);
 }
 
-#[test]
+evm_test!{test_log_sender: test_log_sender_jit, test_log_sender_int}
-fn test_log_sender() {
+fn test_log_sender(factory: super::Factory) {
 	// 60 ff - push ff
 	// 60 00 - push 00
 	// 53 - mstore 
@@ -279,7 +315,7 @@ fn test_log_sender() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -290,8 +326,8 @@ fn test_log_sender() {
 	assert_eq!(ext.logs[0].data, "ff00000000000000000000000000000000000000000000000000000000000000".from_hex().unwrap());
 }
 
-#[test]
+evm_test!{test_blockhash: test_blockhash_jit, test_blockhash_int}
-fn test_blockhash() {
+fn test_blockhash(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let code = "600040600055".from_hex().unwrap();
 	let blockhash = H256::from_str("123400000000000000000000cd1722f2947def4cf144679da39c4c32bdc35681").unwrap();
@@ -304,7 +340,7 @@ fn test_blockhash() {
 	ext.blockhashes.insert(U256::zero(), blockhash.clone());
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -312,8 +348,8 @@ fn test_blockhash() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &blockhash);
 }
 
-#[test]
+evm_test!{test_calldataload: test_calldataload_jit, test_calldataload_int}
-fn test_calldataload() {
+fn test_calldataload(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let code = "600135600055".from_hex().unwrap();
 	let data = "0123ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff23".from_hex().unwrap();
@@ -326,7 +362,7 @@ fn test_calldataload() {
 	let mut ext = FakeExt::new();
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -335,8 +371,8 @@ fn test_calldataload() {
 
 }
 
-#[test]
+evm_test!{test_author: test_author_jit, test_author_int}
-fn test_author() {
+fn test_author(factory: super::Factory) {
 	let author = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 	let code = "41600055".from_hex().unwrap();
 
@@ -347,7 +383,7 @@ fn test_author() {
 	ext.info.author = author;
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -355,8 +391,8 @@ fn test_author() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("0000000000000000000000000f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap());
 }
 
-#[test]
+evm_test!{test_timestamp: test_timestamp_jit, test_timestamp_int}
-fn test_timestamp() {
+fn test_timestamp(factory: super::Factory) {
 	let timestamp = 0x1234; 
 	let code = "42600055".from_hex().unwrap();
 
@@ -367,7 +403,7 @@ fn test_timestamp() {
 	ext.info.timestamp = timestamp;
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -375,8 +411,8 @@ fn test_timestamp() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("0000000000000000000000000000000000000000000000000000000000001234").unwrap());
 }
 
-#[test]
+evm_test!{test_number: test_number_jit, test_number_int}
-fn test_number() {
+fn test_number(factory: super::Factory) {
 	let number = 0x1234; 
 	let code = "43600055".from_hex().unwrap();
 
@@ -387,7 +423,7 @@ fn test_number() {
 	ext.info.number = number;
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -395,8 +431,8 @@ fn test_number() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("0000000000000000000000000000000000000000000000000000000000001234").unwrap());
 }
 
-#[test]
+evm_test!{test_difficulty: test_difficulty_jit, test_difficulty_int}
-fn test_difficulty() {
+fn test_difficulty(factory: super::Factory) {
 	let difficulty = U256::from(0x1234);
 	let code = "44600055".from_hex().unwrap();
 
@@ -407,7 +443,7 @@ fn test_difficulty() {
 	ext.info.difficulty = difficulty;
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
@@ -415,8 +451,8 @@ fn test_difficulty() {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("0000000000000000000000000000000000000000000000000000000000001234").unwrap());
 }
 
-#[test]
+evm_test!{test_gas_limit: test_gas_limit_jit, test_gas_limit_int}
-fn test_gas_limit() {
+fn test_gas_limit(factory: super::Factory) {
 	let gas_limit = U256::from(0x1234);
 	let code = "45600055".from_hex().unwrap();
 
@@ -427,10 +463,11 @@ fn test_gas_limit() {
 	ext.info.gas_limit = gas_limit;
 
 	let gas_left = {
-		let vm = Factory::create();
+		let vm = factory.create();
 		vm.exec(params, &mut ext).unwrap()
 	};
 
 	assert_eq!(gas_left, U256::from(79_995));
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &H256::from_str("0000000000000000000000000000000000000000000000000000000000001234").unwrap());
 }
+

src/executive.rs

@@ -2,7 +2,7 @@
 use common::*;
 use state::*;
 use engine::*;
-use evm::{self, Factory, Ext};
+use evm::{self, Ext};
 use externalities::*;
 use substate::*;
 
@@ -199,8 +199,7 @@ impl<'a> Executive<'a> {
 
 			let res = {
 				let mut ext = self.to_externalities(OriginInfo::from(&params), &mut unconfirmed_substate, OutputPolicy::Return(output));
-				let evm = Factory::create();
+				self.engine.vm_factory().create().exec(params, &mut ext)
-				evm.exec(params, &mut ext)
 			};
 
 			trace!("exec: sstore-clears={}\n", unconfirmed_substate.sstore_clears_count);
@@ -232,8 +231,7 @@ impl<'a> Executive<'a> {
 
 		let res = {
 			let mut ext = self.to_externalities(OriginInfo::from(&params), &mut unconfirmed_substate, OutputPolicy::InitContract);
-			let evm = Factory::create();
+			self.engine.vm_factory().create().exec(params, &mut ext)
-			evm.exec(params, &mut ext)
 		};
 		self.enact_result(&res, substate, unconfirmed_substate, backup);
 		res
@@ -274,6 +272,21 @@ impl<'a> Executive<'a> {
 
 		match result { 
 			Err(evm::Error::Internal) => Err(ExecutionError::Internal),
+			// TODO [ToDr] BadJumpDestination @debris - how to handle that?
+			Err(evm::Error::OutOfGas) 
+				| Err(evm::Error::BadJumpDestination { destination: _ }) 
+				| Err(evm::Error::BadInstruction { instruction: _ }) 
+				| Err(evm::Error::StackUnderflow {instruction: _, wanted: _, on_stack: _})
+				| Err(evm::Error::OutOfStack {instruction: _, wanted: _, limit: _}) => {
+				Ok(Executed {
+					gas: t.gas,
+					gas_used: t.gas,
+					refunded: U256::zero(),
+					cumulative_gas_used: self.info.gas_used + t.gas,
+					logs: vec![],
+					contracts_created: vec![]
+				})
+			},
 			_ => {
 				Ok(Executed {
 					gas: t.gas,
@@ -290,7 +303,11 @@ impl<'a> Executive<'a> {
 	fn enact_result(&mut self, result: &evm::Result, substate: &mut Substate, un_substate: Substate, backup: State) {
 		// TODO: handle other evm::Errors same as OutOfGas once they are implemented
 		match result {
-			&Err(evm::Error::OutOfGas) => {
+			&Err(evm::Error::OutOfGas)
+				| &Err(evm::Error::BadJumpDestination { destination: _ }) 
+				| &Err(evm::Error::BadInstruction { instruction: _ }) 
+				| &Err(evm::Error::StackUnderflow {instruction: _, wanted: _, on_stack: _})
+				| &Err(evm::Error::OutOfStack {instruction: _, wanted: _, limit: _}) => {
 				self.state.revert(backup);
 			},
 			&Ok(_) | &Err(evm::Error::Internal) => substate.accrue(un_substate)
@@ -306,17 +323,19 @@ mod tests {
 	use ethereum;
 	use engine::*;
 	use spec::*;
-	use evm::Schedule;
+	use evm::{Schedule, Factory, VMType};
 	use substate::*;
 
 	struct TestEngine {
+		factory: Factory,
 		spec: Spec,
 		max_depth: usize
 	}
 
 	impl TestEngine {
-		fn new(max_depth: usize) -> TestEngine {
+		fn new(max_depth: usize, factory: Factory) -> TestEngine {
 			TestEngine {
+				factory: factory,
 				spec: ethereum::new_frontier_test(),
 				max_depth: max_depth 
 			}
@@ -326,6 +345,9 @@ mod tests {
 	impl Engine for TestEngine {
 		fn name(&self) -> &str { "TestEngine" }
 		fn spec(&self) -> &Spec { &self.spec }
+		fn vm_factory(&self) -> &Factory {
+			&self.factory
+		}
 		fn schedule(&self, _env_info: &EnvInfo) -> Schedule { 
 			let mut schedule = Schedule::new_frontier();
 			schedule.max_depth = self.max_depth;
@@ -340,9 +362,9 @@ mod tests {
 		assert_eq!(expected_address, contract_address(&address, &U256::from(88)));
 	}
 
-	#[test]
 	// TODO: replace params with transactions!
-	fn test_sender_balance() {
+	evm_test!{test_sender_balance: test_sender_balance_jit, test_sender_balance_int}
+	fn test_sender_balance(factory: Factory) {
 		let sender = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
 		let address = contract_address(&sender, &U256::zero());
 		let mut params = ActionParams::new();
@@ -354,7 +376,7 @@ mod tests {
 		let mut state = State::new_temp();
 		state.add_balance(&sender, &U256::from(0x100u64));
 		let info = EnvInfo::new();
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 		let mut substate = Substate::new();
 
 		let gas_left = {
@@ -372,8 +394,8 @@ mod tests {
 		// TODO: just test state root.
 	}
 
-	#[test]
+	evm_test!{test_create_contract: test_create_contract_jit, test_create_contract_int}
-	fn test_create_contract() {
+	fn test_create_contract(factory: Factory) {
 		// code:
 		//
 		// 7c 601080600c6000396000f3006000355415600957005b60203560003555 - push 29 bytes?
@@ -412,7 +434,7 @@ mod tests {
 		let mut state = State::new_temp();
 		state.add_balance(&sender, &U256::from(100));
 		let info = EnvInfo::new();
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 		let mut substate = Substate::new();
 
 		let gas_left = {
@@ -425,8 +447,8 @@ mod tests {
 		assert_eq!(substate.contracts_created.len(), 0);
 	}
 
-	#[test]
+	evm_test!{test_create_contract_value_too_high: test_create_contract_value_too_high_jit, test_create_contract_value_too_high_int}
-	fn test_create_contract_value_too_high() {
+	fn test_create_contract_value_too_high(factory: Factory) {
 		// code:
 		//
 		// 7c 601080600c6000396000f3006000355415600957005b60203560003555 - push 29 bytes?
@@ -465,7 +487,7 @@ mod tests {
 		let mut state = State::new_temp();
 		state.add_balance(&sender, &U256::from(100));
 		let info = EnvInfo::new();
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 		let mut substate = Substate::new();
 
 		let gas_left = {
@@ -477,8 +499,8 @@ mod tests {
 		assert_eq!(substate.contracts_created.len(), 0);
 	}
 
-	#[test]
+	evm_test!{test_create_contract_without_max_depth: test_create_contract_without_max_depth_jit, test_create_contract_without_max_depth_int}
-	fn test_create_contract_without_max_depth() {
+	fn test_create_contract_without_max_depth(factory: Factory) {
 		// code:
 		//
 		// 7c 601080600c6000396000f3006000355415600957005b60203560003555 - push 29 bytes?
@@ -501,7 +523,7 @@ mod tests {
 		// 60 00 - push 0
 		// f3 - return
 
-		let code = "7c601080600c6000396000f3006000355415600957005b60203560003555600052601d60036017f0600055".from_hex().unwrap();
+		let code = "7c601080600c6000396000f3006000355415600957005b60203560003555600052601d60036017f0".from_hex().unwrap();
 
 		let sender = Address::from_str("cd1722f3947def4cf144679da39c4c32bdc35681").unwrap();
 		let address = contract_address(&sender, &U256::zero());
@@ -516,7 +538,7 @@ mod tests {
 		let mut state = State::new_temp();
 		state.add_balance(&sender, &U256::from(100));
 		let info = EnvInfo::new();
-		let engine = TestEngine::new(1024);
+		let engine = TestEngine::new(1024, factory);
 		let mut substate = Substate::new();
 
 		{
@@ -529,9 +551,8 @@ mod tests {
 	}
 
 	// test is incorrect, mk
-	#[ignore]
+	evm_test_ignore!{test_aba_calls: test_aba_calls_jit, test_aba_calls_int}
-	#[test]
+	fn test_aba_calls(factory: Factory) {
-	fn test_aba_calls() {
 		// 60 00 - push 0
 		// 60 00 - push 0
 		// 60 00 - push 0
@@ -576,7 +597,7 @@ mod tests {
 		state.add_balance(&sender, &U256::from(100_000));
 
 		let info = EnvInfo::new();
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 		let mut substate = Substate::new();
 
 		let gas_left = {
@@ -589,9 +610,8 @@ mod tests {
 	}
 
 	// test is incorrect, mk
-	#[ignore]
+	evm_test_ignore!{test_recursive_bomb1: test_recursive_bomb1_jit, test_recursive_bomb1_int}
-	#[test]
+	fn test_recursive_bomb1(factory: Factory) {
-	fn test_recursive_bomb1() {
 		// 60 01 - push 1
 		// 60 00 - push 0
 		// 54 - sload 
@@ -620,7 +640,7 @@ mod tests {
 		let mut state = State::new_temp();
 		state.init_code(&address, code.clone());
 		let info = EnvInfo::new();
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 		let mut substate = Substate::new();
 
 		let gas_left = {
@@ -634,9 +654,8 @@ mod tests {
 	}
 
 	// test is incorrect, mk
-	#[ignore]
+	evm_test_ignore!{test_transact_simple: test_transact_simple_jit, test_transact_simple_int}
-	#[test]
+	fn test_transact_simple(factory: Factory) {
-	fn test_transact_simple() {
 		let mut t = Transaction::new_create(U256::from(17), "3331600055".from_hex().unwrap(), U256::from(100_000), U256::zero(), U256::zero());
 		let keypair = KeyPair::create().unwrap();
 		t.sign(&keypair.secret());
@@ -647,7 +666,7 @@ mod tests {
 		state.add_balance(&sender, &U256::from(18));	
 		let mut info = EnvInfo::new();
 		info.gas_limit = U256::from(100_000);
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 
 		let executed = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
@@ -666,14 +685,14 @@ mod tests {
 		assert_eq!(state.storage_at(&contract, &H256::new()), H256::from(&U256::from(1)));
 	}
 
-	#[test]
+	evm_test!{test_transact_invalid_sender: test_transact_invalid_sender_jit, test_transact_invalid_sender_int}
-	fn test_transact_invalid_sender() {
+	fn test_transact_invalid_sender(factory: Factory) {
 		let t = Transaction::new_create(U256::from(17), "3331600055".from_hex().unwrap(), U256::from(100_000), U256::zero(), U256::zero());
 
 		let mut state = State::new_temp();
 		let mut info = EnvInfo::new();
 		info.gas_limit = U256::from(100_000);
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 
 		let res = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
@@ -686,8 +705,8 @@ mod tests {
 		}
 	}
 
-	#[test]
+	evm_test!{test_transact_invalid_nonce: test_transact_invalid_nonce_jit, test_transact_invalid_nonce_int}
-	fn test_transact_invalid_nonce() {
+	fn test_transact_invalid_nonce(factory: Factory) {
 		let mut t = Transaction::new_create(U256::from(17), "3331600055".from_hex().unwrap(), U256::from(100_000), U256::zero(), U256::one());
 		let keypair = KeyPair::create().unwrap();
 		t.sign(&keypair.secret());
@@ -697,7 +716,7 @@ mod tests {
 		state.add_balance(&sender, &U256::from(17));	
 		let mut info = EnvInfo::new();
 		info.gas_limit = U256::from(100_000);
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 
 		let res = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
@@ -711,8 +730,8 @@ mod tests {
 		}
 	}
 
-	#[test]
+	evm_test!{test_transact_gas_limit_reached: test_transact_gas_limit_reached_jit, test_transact_gas_limit_reached_int}
-	fn test_transact_gas_limit_reached() {
+	fn test_transact_gas_limit_reached(factory: Factory) {
 		let mut t = Transaction::new_create(U256::from(17), "3331600055".from_hex().unwrap(), U256::from(80_001), U256::zero(), U256::zero());
 		let keypair = KeyPair::create().unwrap();
 		t.sign(&keypair.secret());
@@ -723,7 +742,7 @@ mod tests {
 		let mut info = EnvInfo::new();
 		info.gas_used = U256::from(20_000);
 		info.gas_limit = U256::from(100_000);
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 
 		let res = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
@@ -737,8 +756,8 @@ mod tests {
 		}
 	}
 
-	#[test]
+	evm_test!{test_not_enough_cash: test_not_enough_cash_jit, test_not_enough_cash_int}
-	fn test_not_enough_cash() {
+	fn test_not_enough_cash(factory: Factory) {
 		let mut t = Transaction::new_create(U256::from(18), "3331600055".from_hex().unwrap(), U256::from(100_000), U256::one(), U256::zero());
 		let keypair = KeyPair::create().unwrap();
 		t.sign(&keypair.secret());
@@ -748,7 +767,7 @@ mod tests {
 		state.add_balance(&sender, &U256::from(100_017));	
 		let mut info = EnvInfo::new();
 		info.gas_limit = U256::from(100_000);
-		let engine = TestEngine::new(0);
+		let engine = TestEngine::new(0, factory);
 
 		let res = {
 			let mut ex = Executive::new(&mut state, &info, &engine);
@@ -761,4 +780,40 @@ mod tests {
 			_ => assert!(false, "Expected not enough cash error. {:?}", res)
 		}
 	}
+
+	evm_test!{test_sha3: test_sha3_jit, test_sha3_int}
+	fn test_sha3(factory: Factory) {
+		let code = "6064640fffffffff20600055".from_hex().unwrap();
+
+		let sender = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
+		let address = contract_address(&sender, &U256::zero());
+		// TODO: add tests for 'callcreate'
+		//let next_address = contract_address(&address, &U256::zero());
+		let mut params = ActionParams::new();
+		params.address = address.clone();
+		params.sender = sender.clone();
+		params.origin = sender.clone();
+		params.gas = U256::from(0x0186a0);
+		params.code = Some(code.clone());
+		params.value = U256::from_str("0de0b6b3a7640000").unwrap();
+		let mut state = State::new_temp();
+		state.add_balance(&sender, &U256::from_str("152d02c7e14af6800000").unwrap());
+		let info = EnvInfo::new();
+		let engine = TestEngine::new(0, factory);
+		let mut substate = Substate::new();
+
+		let result = {
+			let mut ex = Executive::new(&mut state, &info, &engine);
+			ex.create(params, &mut substate)
+		};
+
+		match result {
+			Err(_) => {
+			},
+			_ => {
+				panic!("Expected OutOfGas");
+			}
+		}
+	}
+
 }

src/externalities.rs

@@ -157,7 +157,7 @@ impl<'a> Ext for Externalities<'a> {
 		}
 	}
 
-	fn extcode(&self, address: &Address) -> Vec<u8> {
+	fn extcode(&self, address: &Address) -> Bytes {
 		self.state.code(address).unwrap_or(vec![])
 	}
 
@@ -196,9 +196,9 @@ impl<'a> Ext for Externalities<'a> {
 		}
 	}
 
-	fn log(&mut self, topics: Vec<H256>, data: Bytes) {
+	fn log(&mut self, topics: Vec<H256>, data: &[u8]) {
 		let address = self.origin_info.address.clone();
-		self.substate.logs.push(LogEntry::new(address, topics, data));
+		self.substate.logs.push(LogEntry::new(address, topics, data.to_vec()));
 	}
 
 	fn suicide(&mut self, refund_address: &Address) {

src/lib.rs

@@ -1,5 +1,6 @@
 #![feature(cell_extras)]
 #![feature(augmented_assignments)]
+#![feature(wrapping)]
 //#![feature(plugin)]
 //#![plugin(interpolate_idents)]
 //! Ethcore's ethereum implementation
@@ -89,6 +90,8 @@ extern crate ethcore_util as util;
 
 pub mod common;
 pub mod basic_types;
+#[macro_use]
+pub mod evm;
 pub mod error;
 pub mod log_entry;
 pub mod env_info;
@@ -110,7 +113,6 @@ pub mod views;
 pub mod blockchain;
 pub mod extras;
 pub mod substate;
-pub mod evm;
 pub mod service;
 pub mod executive;
 pub mod externalities;

src/null_engine.rs

@@ -1,20 +1,29 @@
 use engine::Engine;
 use spec::Spec;
 use evm::Schedule;
+use evm::Factory;
 use env_info::EnvInfo;
 
 /// An engine which does not provide any consensus mechanism.
 pub struct NullEngine {
 	spec: Spec,
+	factory: Factory
 }
 
 impl NullEngine {
 	pub fn new_boxed(spec: Spec) -> Box<Engine> {
-		Box::new(NullEngine{spec: spec})
+		Box::new(NullEngine{
+			spec: spec,
+			// TODO [todr] should this return any specific factory?
+			factory: Factory::default()
+		})
 	}
 }
 
 impl Engine for NullEngine {
+	fn vm_factory(&self) -> &Factory {
+		&self.factory
+	}
 	fn name(&self) -> &str { "NullEngine" }
 	fn spec(&self) -> &Spec { &self.spec }
 	fn schedule(&self, _env_info: &EnvInfo) -> Schedule { Schedule::new_frontier() }

src/state.rs

@@ -101,7 +101,7 @@ impl State {
 	}
 
 	/// Mutate storage of account `a` so that it is `value` for `key`.
-	pub fn code(&self, a: &Address) -> Option<Vec<u8>> {
+	pub fn code(&self, a: &Address) -> Option<Bytes> {
 		self.get(a, true).as_ref().map(|a|a.code().map(|x|x.to_vec())).unwrap_or(None)
 	}
 

src/tests/executive.rs

@@ -4,19 +4,21 @@ use executive::*;
 use spec::*;
 use engine::*;
 use evm;
-use evm::{Schedule, Ext, Factory, ContractCreateResult, MessageCallResult};
+use evm::{Schedule, Ext, Factory, VMType, ContractCreateResult, MessageCallResult};
 use ethereum;
 use externalities::*;
 use substate::*;
 
 struct TestEngine {
+	vm_factory: Factory,
 	spec: Spec,
 	max_depth: usize
 }
 
 impl TestEngine {
-	fn new(max_depth: usize) -> TestEngine {
+	fn new(max_depth: usize, vm_type: VMType) -> TestEngine {
 		TestEngine {
+			vm_factory: Factory::new(vm_type),
 			spec: ethereum::new_frontier_test(),
 			max_depth: max_depth 
 		}
@@ -26,6 +28,7 @@ impl TestEngine {
 impl Engine for TestEngine {
 	fn name(&self) -> &str { "TestEngine" }
 	fn spec(&self) -> &Spec { &self.spec }
+	fn vm_factory(&self) -> &Factory { &self.vm_factory }
 	fn schedule(&self, _env_info: &EnvInfo) -> Schedule { 
 		let mut schedule = Schedule::new_frontier();
 		schedule.max_depth = self.max_depth; 
@@ -112,11 +115,11 @@ impl<'a> Ext for TestExt<'a> {
 		MessageCallResult::Success(*gas)
 	}
 
-	fn extcode(&self, address: &Address) -> Vec<u8> {
+	fn extcode(&self, address: &Address) -> Bytes  {
 		self.ext.extcode(address)
 	}
 	
-	fn log(&mut self, topics: Vec<H256>, data: Bytes) {
+	fn log(&mut self, topics: Vec<H256>, data: &[u8]) {
 		self.ext.log(topics, data)
 	}
 
@@ -146,17 +149,28 @@ impl<'a> Ext for TestExt<'a> {
 }
 
 fn do_json_test(json_data: &[u8]) -> Vec<String> {
+	let vms = VMType::all();
+	vms
+		.iter()
+		.flat_map(|vm| do_json_test_for(vm, json_data))
+		.collect()
+}
+
+fn do_json_test_for(vm: &VMType, json_data: &[u8]) -> Vec<String> {
 	let json = Json::from_str(::std::str::from_utf8(json_data).unwrap()).expect("Json is invalid");
 	let mut failed = Vec::new();
 	for (name, test) in json.as_object().unwrap() {
 		println!("name: {:?}", name);
 		// sync io is usefull when something crashes in jit
-		//::std::io::stdout().write(&name.as_bytes());
+		// ::std::io::stdout().write(&name.as_bytes());
-		//::std::io::stdout().write(b"\n");
+		// ::std::io::stdout().write(b"\n");
-		//::std::io::stdout().flush();
+		// ::std::io::stdout().flush();
 		let mut fail = false;
 		//let mut fail_unless = |cond: bool| if !cond && !fail { failed.push(name.to_string()); fail = true };
-		let mut fail_unless = |cond: bool, s: &str | if !cond && !fail { failed.push(name.to_string() + ": "+ s); fail = true };
+		let mut fail_unless = |cond: bool, s: &str | if !cond && !fail { 
+			failed.push(format!("[{}] {}: {}", vm, name.to_string(), s)); 
+			fail = true 
+		};
 	
 		// test env
 		let mut state = State::new_temp();
@@ -183,7 +197,7 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 			info.timestamp = xjson!(&env["currentTimestamp"]);
 		});
 
-		let engine = TestEngine::new(1);
+		let engine = TestEngine::new(1, vm.clone());
 
 		// params
 		let mut params = ActionParams::new();
@@ -214,7 +228,7 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 									  &mut substate, 
 									  OutputPolicy::Return(BytesRef::Flexible(&mut output)),
 									  params.address.clone());
-			let evm = Factory::create();
+			let evm = engine.vm_factory().create();
 			let res = evm.exec(params, &mut ex);
 			(res, ex.callcreates)
 		};
@@ -223,7 +237,7 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 		match res {
 			Err(_) => fail_unless(out_of_gas, "didn't expect to run out of gas."),
 			Ok(gas_left) => {
-				//println!("name: {}, gas_left : {:?}, expected: {:?}", name, gas_left, U256::from(&test["gas"]));
+				// println!("name: {}, gas_left : {:?}", name, gas_left);
 				fail_unless(!out_of_gas, "expected to run out of gas.");
 				fail_unless(gas_left == xjson!(&test["gas"]), "gas_left is incorrect");
 				fail_unless(output == Bytes::from_json(&test["out"]), "output is incorrect");

src/tests/state.rs

@@ -8,8 +8,7 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
 	let json = Json::from_str(::std::str::from_utf8(json_data).unwrap()).expect("Json is invalid");
 	let mut failed = Vec::new();
 
-	let engine = ethereum::new_frontier_test().to_engine().unwrap();
+	let engine = ethereum::new_frontier_like_test().to_engine().unwrap();
-
 	flush(format!("\n"));
 
 	for (name, test) in json.as_object().unwrap() {