package vm import ( "math/big" "github.com/ethereum/go-ethereum/params" ) type jumpPtr struct { fn instrFn valid bool } type vmJumpTable [256]jumpPtr func newJumpTable(blockNumber *big.Int) vmJumpTable { var jumpTable vmJumpTable // when initialising a new VM execution we must first check the homestead // changes. if params.IsHomestead(blockNumber) { jumpTable[DELEGATECALL] = jumpPtr{opDelegateCall, true} } jumpTable[ADD] = jumpPtr{opAdd, true} jumpTable[SUB] = jumpPtr{opSub, true} jumpTable[MUL] = jumpPtr{opMul, true} jumpTable[DIV] = jumpPtr{opDiv, true} jumpTable[SDIV] = jumpPtr{opSdiv, true} jumpTable[MOD] = jumpPtr{opMod, true} jumpTable[SMOD] = jumpPtr{opSmod, true} jumpTable[EXP] = jumpPtr{opExp, true} jumpTable[SIGNEXTEND] = jumpPtr{opSignExtend, true} jumpTable[NOT] = jumpPtr{opNot, true} jumpTable[LT] = jumpPtr{opLt, true} jumpTable[GT] = jumpPtr{opGt, true} jumpTable[SLT] = jumpPtr{opSlt, true} jumpTable[SGT] = jumpPtr{opSgt, true} jumpTable[EQ] = jumpPtr{opEq, true} jumpTable[ISZERO] = jumpPtr{opIszero, true} jumpTable[AND] = jumpPtr{opAnd, true} jumpTable[OR] = jumpPtr{opOr, true} jumpTable[XOR] = jumpPtr{opXor, true} jumpTable[BYTE] = jumpPtr{opByte, true} jumpTable[ADDMOD] = jumpPtr{opAddmod, true} jumpTable[MULMOD] = jumpPtr{opMulmod, true} jumpTable[SHA3] = jumpPtr{opSha3, true} jumpTable[ADDRESS] = jumpPtr{opAddress, true} jumpTable[BALANCE] = jumpPtr{opBalance, true} jumpTable[ORIGIN] = jumpPtr{opOrigin, true} jumpTable[CALLER] = jumpPtr{opCaller, true} jumpTable[CALLVALUE] = jumpPtr{opCallValue, true} jumpTable[CALLDATALOAD] = jumpPtr{opCalldataLoad, true} jumpTable[CALLDATASIZE] = jumpPtr{opCalldataSize, true} jumpTable[CALLDATACOPY] = jumpPtr{opCalldataCopy, true} jumpTable[CODESIZE] = jumpPtr{opCodeSize, true} jumpTable[EXTCODESIZE] = jumpPtr{opExtCodeSize, true} jumpTable[CODECOPY] = jumpPtr{opCodeCopy, true} jumpTable[EXTCODECOPY] = jumpPtr{opExtCodeCopy, true} jumpTable[GASPRICE] = jumpPtr{opGasprice, true} jumpTable[BLOCKHASH] = jumpPtr{opBlockhash, true} jumpTable[COINBASE] = jumpPtr{opCoinbase, true} jumpTable[TIMESTAMP] = jumpPtr{opTimestamp, true} jumpTable[NUMBER] = jumpPtr{opNumber, true} jumpTable[DIFFICULTY] = jumpPtr{opDifficulty, true} jumpTable[GASLIMIT] = jumpPtr{opGasLimit, true} jumpTable[POP] = jumpPtr{opPop, true} jumpTable[MLOAD] = jumpPtr{opMload, true} jumpTable[MSTORE] = jumpPtr{opMstore, true} jumpTable[MSTORE8] = jumpPtr{opMstore8, true} jumpTable[SLOAD] = jumpPtr{opSload, true} jumpTable[SSTORE] = jumpPtr{opSstore, true} jumpTable[JUMPDEST] = jumpPtr{opJumpdest, true} jumpTable[PC] = jumpPtr{nil, true} jumpTable[MSIZE] = jumpPtr{opMsize, true} jumpTable[GAS] = jumpPtr{opGas, true} jumpTable[CREATE] = jumpPtr{opCreate, true} jumpTable[CALL] = jumpPtr{opCall, true} jumpTable[CALLCODE] = jumpPtr{opCallCode, true} jumpTable[LOG0] = jumpPtr{makeLog(0), true} jumpTable[LOG1] = jumpPtr{makeLog(1), true} jumpTable[LOG2] = jumpPtr{makeLog(2), true} jumpTable[LOG3] = jumpPtr{makeLog(3), true} jumpTable[LOG4] = jumpPtr{makeLog(4), true} jumpTable[SWAP1] = jumpPtr{makeSwap(1), true} jumpTable[SWAP2] = jumpPtr{makeSwap(2), true} jumpTable[SWAP3] = jumpPtr{makeSwap(3), true} jumpTable[SWAP4] = jumpPtr{makeSwap(4), true} jumpTable[SWAP5] = jumpPtr{makeSwap(5), true} jumpTable[SWAP6] = jumpPtr{makeSwap(6), true} jumpTable[SWAP7] = jumpPtr{makeSwap(7), true} jumpTable[SWAP8] = jumpPtr{makeSwap(8), true} jumpTable[SWAP9] = jumpPtr{makeSwap(9), true} jumpTable[SWAP10] = jumpPtr{makeSwap(10), true} jumpTable[SWAP11] = jumpPtr{makeSwap(11), true} jumpTable[SWAP12] = jumpPtr{makeSwap(12), true} jumpTable[SWAP13] = jumpPtr{makeSwap(13), true} jumpTable[SWAP14] = jumpPtr{makeSwap(14), true} jumpTable[SWAP15] = jumpPtr{makeSwap(15), true} jumpTable[SWAP16] = jumpPtr{makeSwap(16), true} jumpTable[PUSH1] = jumpPtr{makePush(1, big.NewInt(1)), true} jumpTable[PUSH2] = jumpPtr{makePush(2, big.NewInt(2)), true} jumpTable[PUSH3] = jumpPtr{makePush(3, big.NewInt(3)), true} jumpTable[PUSH4] = jumpPtr{makePush(4, big.NewInt(4)), true} jumpTable[PUSH5] = jumpPtr{makePush(5, big.NewInt(5)), true} jumpTable[PUSH6] = jumpPtr{makePush(6, big.NewInt(6)), true} jumpTable[PUSH7] = jumpPtr{makePush(7, big.NewInt(7)), true} jumpTable[PUSH8] = jumpPtr{makePush(8, big.NewInt(8)), true} jumpTable[PUSH9] = jumpPtr{makePush(9, big.NewInt(9)), true} jumpTable[PUSH10] = jumpPtr{makePush(10, big.NewInt(10)), true} jumpTable[PUSH11] = jumpPtr{makePush(11, big.NewInt(11)), true} jumpTable[PUSH12] = jumpPtr{makePush(12, big.NewInt(12)), true} jumpTable[PUSH13] = jumpPtr{makePush(13, big.NewInt(13)), true} jumpTable[PUSH14] = jumpPtr{makePush(14, big.NewInt(14)), true} jumpTable[PUSH15] = jumpPtr{makePush(15, big.NewInt(15)), true} jumpTable[PUSH16] = jumpPtr{makePush(16, big.NewInt(16)), true} jumpTable[PUSH17] = jumpPtr{makePush(17, big.NewInt(17)), true} jumpTable[PUSH18] = jumpPtr{makePush(18, big.NewInt(18)), true} jumpTable[PUSH19] = jumpPtr{makePush(19, big.NewInt(19)), true} jumpTable[PUSH20] = jumpPtr{makePush(20, big.NewInt(20)), true} jumpTable[PUSH21] = jumpPtr{makePush(21, big.NewInt(21)), true} jumpTable[PUSH22] = jumpPtr{makePush(22, big.NewInt(22)), true} jumpTable[PUSH23] = jumpPtr{makePush(23, big.NewInt(23)), true} jumpTable[PUSH24] = jumpPtr{makePush(24, big.NewInt(24)), true} jumpTable[PUSH25] = jumpPtr{makePush(25, big.NewInt(25)), true} jumpTable[PUSH26] = jumpPtr{makePush(26, big.NewInt(26)), true} jumpTable[PUSH27] = jumpPtr{makePush(27, big.NewInt(27)), true} jumpTable[PUSH28] = jumpPtr{makePush(28, big.NewInt(28)), true} jumpTable[PUSH29] = jumpPtr{makePush(29, big.NewInt(29)), true} jumpTable[PUSH30] = jumpPtr{makePush(30, big.NewInt(30)), true} jumpTable[PUSH31] = jumpPtr{makePush(31, big.NewInt(31)), true} jumpTable[PUSH32] = jumpPtr{makePush(32, big.NewInt(32)), true} jumpTable[DUP1] = jumpPtr{makeDup(1), true} jumpTable[DUP2] = jumpPtr{makeDup(2), true} jumpTable[DUP3] = jumpPtr{makeDup(3), true} jumpTable[DUP4] = jumpPtr{makeDup(4), true} jumpTable[DUP5] = jumpPtr{makeDup(5), true} jumpTable[DUP6] = jumpPtr{makeDup(6), true} jumpTable[DUP7] = jumpPtr{makeDup(7), true} jumpTable[DUP8] = jumpPtr{makeDup(8), true} jumpTable[DUP9] = jumpPtr{makeDup(9), true} jumpTable[DUP10] = jumpPtr{makeDup(10), true} jumpTable[DUP11] = jumpPtr{makeDup(11), true} jumpTable[DUP12] = jumpPtr{makeDup(12), true} jumpTable[DUP13] = jumpPtr{makeDup(13), true} jumpTable[DUP14] = jumpPtr{makeDup(14), true} jumpTable[DUP15] = jumpPtr{makeDup(15), true} jumpTable[DUP16] = jumpPtr{makeDup(16), true} jumpTable[RETURN] = jumpPtr{nil, true} jumpTable[SUICIDE] = jumpPtr{nil, true} jumpTable[JUMP] = jumpPtr{nil, true} jumpTable[JUMPI] = jumpPtr{nil, true} jumpTable[STOP] = jumpPtr{nil, true} return jumpTable }