//TODO: Endianism checks can be done on pop and push
public void Step(Program program)
{
var instruction = program.GetCurrentInstruction();
var instructionInfo = GetInstructionInfo(instruction);
switch ((Instruction)instruction)
{
case Instruction.STOP:
break;
case Instruction.ADD:
break;
case Instruction.MUL:
break;
case Instruction.SUB:
break;
case Instruction.DIV:
break;
case Instruction.SDIV:
break;
case Instruction.MOD:
break;
case Instruction.SMOD:
break;
case Instruction.ADDMOD:
break;
case Instruction.MULMOD:
break;
case Instruction.EXP:
break;
case Instruction.SIGNEXTEND:
break;
case Instruction.LT:
break;
case Instruction.GT:
var gtBytes1 = program.StackPop();
var gtBytes2 = program.StackPop();
program.StackPush(new[] { new BigInteger(gtBytes1) > new BigInteger(gtBytes2) ? (byte)1 : (byte)0 });
program.Step();
break;
case Instruction.SLT:
break;
case Instruction.SGT:
break;
case Instruction.EQ:
var eqBytes1 = program.StackPop();
var eqBytes2 = program.StackPop();
//check endianism
program.StackPush(new[] { new BigInteger(eqBytes1) == new BigInteger(eqBytes2) ? (byte)1: (byte)0 });
program.Step();
break;
case Instruction.ISZERO:
var isZeroBytes = program.StackPop();
//check endianism
program.StackPush(new BigInteger(isZeroBytes) == 0 ? new[] { (byte)1 } : new[] { (byte)0 });
program.Step();
break;
case Instruction.AND:
var andBytes1 = program.StackPop();
var andBytes2 = program.StackPop();
//check endianism
var andB1 = new BigInteger(andBytes1);
andB1 = andB1 & new BigInteger(andBytes2);
program.StackPush(andB1.ToByteArray());
program.Step();
break;
case Instruction.OR:
var orBytes1 = program.StackPop();
var orBytes2 = program.StackPop();
var orB1 = new BigInteger(orBytes1);
orB1 = orB1 | new BigInteger(orBytes2);
program.StackPush(orB1.ToByteArray());
program.Step();
break;
case Instruction.XOR:
var xorBytes1 = program.StackPop();
var xorBytes2 = program.StackPop();
var xorB1 = new BigInteger(xorBytes1);
xorB1 = xorB1 ^ new BigInteger(xorBytes2);
program.StackPush(xorB1.ToByteArray());
program.Step();
break;
case Instruction.NOT:
break;
case Instruction.BYTE:
var byteBytes1 = program.StackPop();
var byteBytes2 = program.StackPop();
var pos = new BigInteger(byteBytes1);
var word = PadTo32Bytes(byteBytes2);
var result = pos < 32 ? new [] { word[(int)pos] } : new byte[0];
program.StackPush(result);
program.Step();
break;
case Instruction.SHA3:
break;
case Instruction.ADDRESS:
break;
case Instruction.BALANCE:
break;
case Instruction.ORIGIN:
break;
case Instruction.CALLER:
break;
case Instruction.CALLVALUE:
break;
case Instruction.CALLDATALOAD:
break;
case Instruction.CALLDATASIZE:
break;
case Instruction.CALLDATACOPY:
break;
case Instruction.CODESIZE:
break;
case Instruction.CODECOPY:
break;
case Instruction.GASPRICE:
break;
case Instruction.EXTCODESIZE:
break;
case Instruction.EXTCODECOPY:
break;
case Instruction.BLOCKHASH:
break;
case Instruction.COINBASE:
break;
case Instruction.TIMESTAMP:
break;
case Instruction.NUMBER:
break;
case Instruction.DIFFICULTY:
break;
case Instruction.GASLIMIT:
break;
case Instruction.POP:
break;
case Instruction.MLOAD:
break;
case Instruction.MSTORE:
break;
case Instruction.MSTORE8:
break;
case Instruction.SLOAD:
break;
case Instruction.SSTORE:
break;
case Instruction.JUMP:
break;
case Instruction.JUMPI:
break;
case Instruction.PC:
break;
case Instruction.MSIZE:
break;
case Instruction.GAS:
break;
case Instruction.JUMPDEST:
break;
case Instruction.PUSH1:
case Instruction.PUSH2:
case Instruction.PUSH3:
case Instruction.PUSH4:
case Instruction.PUSH5:
case Instruction.PUSH6:
case Instruction.PUSH7:
case Instruction.PUSH8:
case Instruction.PUSH9:
case Instruction.PUSH10:
case Instruction.PUSH11:
case Instruction.PUSH12:
case Instruction.PUSH13:
case Instruction.PUSH14:
case Instruction.PUSH15:
case Instruction.PUSH16:
case Instruction.PUSH17:
case Instruction.PUSH18:
case Instruction.PUSH19:
case Instruction.PUSH20:
case Instruction.PUSH21:
case Instruction.PUSH22:
case Instruction.PUSH23:
case Instruction.PUSH24:
case Instruction.PUSH25:
case Instruction.PUSH26:
case Instruction.PUSH27:
case Instruction.PUSH28:
case Instruction.PUSH29:
case Instruction.PUSH30:
case Instruction.PUSH31:
case Instruction.PUSH32:
program.Step();
var pushNumber = instruction - (int)Instruction.PUSH1 + 1;
var data = program.Sweep(pushNumber);
program.StackPush(data);
break;
case Instruction.DUP1:
case Instruction.DUP2:
case Instruction.DUP3:
case Instruction.DUP4:
case Instruction.DUP5:
case Instruction.DUP6:
case Instruction.DUP7:
case Instruction.DUP8:
case Instruction.DUP9:
case Instruction.DUP10:
case Instruction.DUP11:
case Instruction.DUP12:
case Instruction.DUP13:
case Instruction.DUP14:
case Instruction.DUP15:
case Instruction.DUP16:
break;
case Instruction.SWAP1:
case Instruction.SWAP2:
case Instruction.SWAP3:
case Instruction.SWAP4:
case Instruction.SWAP5:
case Instruction.SWAP6:
case Instruction.SWAP7:
case Instruction.SWAP8:
case Instruction.SWAP9:
case Instruction.SWAP10:
case Instruction.SWAP11:
case Instruction.SWAP12:
case Instruction.SWAP13:
case Instruction.SWAP14:
case Instruction.SWAP15:
case Instruction.SWAP16:
break;
case Instruction.LOG0:
break;
case Instruction.LOG1:
break;
case Instruction.LOG2:
break;
case Instruction.LOG3:
break;
case Instruction.LOG4:
break;
case Instruction.PUSHC:
break;
case Instruction.JUMPV:
break;
case Instruction.JUMPVI:
break;
case Instruction.BAD:
break;
case Instruction.CREATE:
break;
case Instruction.CALL:
break;
case Instruction.CALLCODE:
break;
case Instruction.RETURN:
break;
case Instruction.DELEGATECALL:
break;
case Instruction.SUICIDE:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
//TODO: Endianism checks can be done on pop and push // or not
public void Step(Program program)
{
var instruction = program.GetCurrentInstruction();
var instructionInfo = GetInstructionInfo(instruction);
switch ((Instruction)instruction)
{
case Instruction.STOP:
break;
case Instruction.ADD:
break;
case Instruction.MUL:
break;
case Instruction.SUB:
break;
case Instruction.DIV:
break;
case Instruction.SDIV:
break;
case Instruction.MOD:
break;
case Instruction.SMOD:
break;
case Instruction.ADDMOD:
break;
case Instruction.MULMOD:
break;
case Instruction.EXP:
break;
case Instruction.SIGNEXTEND:
break;
case Instruction.LT:
var ltBytes1 = program.StackPop();
var ltBytes2 = program.StackPop();
if (BitConverter.IsLittleEndian)
{
ltBytes1 = ltBytes1.Reverse().ToArray();
ltBytes2 = ltBytes2.Reverse().ToArray();
}
program.StackPush(new[] { new BigInteger(ltBytes1) < new BigInteger(ltBytes2) ? (byte)1 : (byte)0 });
program.Step();
break;
case Instruction.GT:
var gtBytes1 = program.StackPop();
var gtBytes2 = program.StackPop();
if (BitConverter.IsLittleEndian)
{
gtBytes1 = gtBytes1.Reverse().ToArray();
gtBytes2 = gtBytes2.Reverse().ToArray();
}
program.StackPush(new[] { new BigInteger(gtBytes1) > new BigInteger(gtBytes2) ? (byte)1 : (byte)0 });
program.Step();
break;
case Instruction.SLT:
var sltBytes1 = program.StackPop();
var sltBytes2 = program.StackPop();
if (BitConverter.IsLittleEndian)
{
sltBytes1 = sltBytes1.Reverse().ToArray();
sltBytes2 = sltBytes2.Reverse().ToArray();
}
program.StackPush(new[] { new BigInteger(sltBytes1) < new BigInteger(sltBytes2) ? (byte)1 : (byte)0 });
program.Step();
break;
case Instruction.SGT:
var sgtBytes1 = program.StackPop();
var sgtBytes2 = program.StackPop();
if (BitConverter.IsLittleEndian)
{
sgtBytes1 = sgtBytes1.Reverse().ToArray();
sgtBytes2 = sgtBytes2.Reverse().ToArray();
}
program.StackPush(new[] { new BigInteger(sgtBytes1) > new BigInteger(sgtBytes2) ? (byte)1 : (byte)0 });
program.Step();
break;
case Instruction.EQ:
var eqBytes1 = program.StackPop();
var eqBytes2 = program.StackPop();
//check endianism
if (BitConverter.IsLittleEndian)
{
eqBytes1 = eqBytes1.Reverse().ToArray();
eqBytes2 = eqBytes2.Reverse().ToArray();
}
program.StackPush(new[] { new BigInteger(eqBytes1) == new BigInteger(eqBytes2) ? (byte)1: (byte)0});
program.Step();
break;
case Instruction.ISZERO:
var isZeroBytes = program.StackPop();
//check endianism
program.StackPush(new BigInteger(isZeroBytes) == 0 ? new[] {(byte) 1} : new[] {(byte) 0});
program.Step();
break;
case Instruction.AND:
var andBytes1 = program.StackPop();
var andBytes2 = program.StackPop();
//check endianism
var andB1 = new BigInteger(andBytes1);
andB1 = andB1 & new BigInteger(andBytes2);
program.StackPush(andB1.ToByteArray());
program.Step();
break;
case Instruction.OR:
var orBytes1 = program.StackPop();
var orBytes2 = program.StackPop();
//check endianism
var orB1 = new BigInteger(orBytes1);
orB1 = orB1 | new BigInteger(orBytes2);
program.StackPush(orB1.ToByteArray());
program.Step();
break;
case Instruction.XOR:
var xorBytes1 = program.StackPop();
var xorBytes2 = program.StackPop();
//check endianism
var xorB1 = new BigInteger(xorBytes1);
xorB1 = xorB1 ^ new BigInteger(xorBytes2);
program.StackPush(xorB1.ToByteArray());
program.Step();
break;
case Instruction.NOT:
var notBytes1 = program.StackPop();
//check endianism
var notB1 = new BigInteger(notBytes1);
program.StackPush((~notB1).ToByteArray());
break;
case Instruction.BYTE:
var byteBytes1 = program.StackPop();
var byteBytes2 = program.StackPop();
var pos = new BigInteger(byteBytes1);
var word = PadTo32Bytes(byteBytes2);
var result = pos < 32 ? new [] { word[(int)pos]} : new byte[0];
program.StackPush(result);
program.Step();
break;
case Instruction.SHA3:
break;
case Instruction.ADDRESS:
break;
case Instruction.BALANCE:
break;
case Instruction.ORIGIN:
break;
case Instruction.CALLER:
break;
case Instruction.CALLVALUE:
break;
case Instruction.CALLDATALOAD:
break;
case Instruction.CALLDATASIZE:
break;
case Instruction.CALLDATACOPY:
break;
case Instruction.CODESIZE:
break;
case Instruction.CODECOPY:
break;
case Instruction.GASPRICE:
break;
case Instruction.EXTCODESIZE:
break;
case Instruction.EXTCODECOPY:
break;
case Instruction.BLOCKHASH:
break;
case Instruction.COINBASE:
break;
case Instruction.TIMESTAMP:
break;
case Instruction.NUMBER:
break;
case Instruction.DIFFICULTY:
break;
case Instruction.GASLIMIT:
break;
case Instruction.POP:
program.StackPop();
program.Step();
break;
case Instruction.MLOAD:
break;
case Instruction.MSTORE:
break;
case Instruction.MSTORE8:
break;
case Instruction.SLOAD:
break;
case Instruction.SSTORE:
break;
case Instruction.JUMP:
break;
case Instruction.JUMPI:
break;
case Instruction.PC:
break;
case Instruction.MSIZE:
break;
case Instruction.GAS:
break;
case Instruction.JUMPDEST:
break;
case Instruction.PUSH1:
case Instruction.PUSH2:
case Instruction.PUSH3:
case Instruction.PUSH4:
case Instruction.PUSH5:
case Instruction.PUSH6:
case Instruction.PUSH7:
case Instruction.PUSH8:
case Instruction.PUSH9:
case Instruction.PUSH10:
case Instruction.PUSH11:
case Instruction.PUSH12:
case Instruction.PUSH13:
case Instruction.PUSH14:
case Instruction.PUSH15:
case Instruction.PUSH16:
case Instruction.PUSH17:
case Instruction.PUSH18:
case Instruction.PUSH19:
case Instruction.PUSH20:
case Instruction.PUSH21:
case Instruction.PUSH22:
case Instruction.PUSH23:
case Instruction.PUSH24:
case Instruction.PUSH25:
case Instruction.PUSH26:
case Instruction.PUSH27:
case Instruction.PUSH28:
case Instruction.PUSH29:
case Instruction.PUSH30:
case Instruction.PUSH31:
case Instruction.PUSH32:
program.Step();
var pushNumber = instruction - (int)Instruction.PUSH1 + 1;
var data = program.Sweep(pushNumber);
program.StackPush(data);
break;
case Instruction.DUP1:
case Instruction.DUP2:
case Instruction.DUP3:
case Instruction.DUP4:
case Instruction.DUP5:
case Instruction.DUP6:
case Instruction.DUP7:
case Instruction.DUP8:
case Instruction.DUP9:
case Instruction.DUP10:
case Instruction.DUP11:
case Instruction.DUP12:
case Instruction.DUP13:
case Instruction.DUP14:
case Instruction.DUP15:
case Instruction.DUP16:
break;
case Instruction.SWAP1:
case Instruction.SWAP2:
case Instruction.SWAP3:
case Instruction.SWAP4:
case Instruction.SWAP5:
case Instruction.SWAP6:
case Instruction.SWAP7:
case Instruction.SWAP8:
case Instruction.SWAP9:
case Instruction.SWAP10:
case Instruction.SWAP11:
case Instruction.SWAP12:
case Instruction.SWAP13:
case Instruction.SWAP14:
case Instruction.SWAP15:
case Instruction.SWAP16:
break;
case Instruction.LOG0:
break;
case Instruction.LOG1:
break;
case Instruction.LOG2:
break;
case Instruction.LOG3:
break;
case Instruction.LOG4:
break;
case Instruction.PUSHC:
break;
case Instruction.JUMPV:
break;
case Instruction.JUMPVI:
break;
case Instruction.BAD:
break;
case Instruction.CREATE:
break;
case Instruction.CALL:
break;
case Instruction.CALLCODE:
break;
case Instruction.RETURN:
break;
case Instruction.DELEGATECALL:
break;
case Instruction.SUICIDE:
break;
default:
throw new ArgumentOutOfRangeException();
}
}