Tag: opcode

53 What OPCODES are available for the Ethereum EVM? 2016-01-20T20:54:31.433

47 How can you decompile a smart contract? 2016-01-21T06:53:58.907

29 What's a precompiled contract and how are they different from native opcodes? 2016-01-23T01:40:45.443

21 Is there a table of EVM instructions and their gas costs? 2017-01-17T21:03:45.707

16 What does bytecode of blank contract do? 2016-04-09T16:06:04.723

11 what is block.timestamp 2017-01-02T21:58:50.560

8 Can a contract access the code of another contract? 2016-03-07T17:10:10.160

8 Is the cost of updating storage different than the cost of adding to storage? 2016-04-23T21:38:49.660

8 Why a contract with only one variable produces lots of EVM code? 2016-12-16T17:56:46.167

7 Are linkable ring signatures available in Ethereum? 2016-02-29T06:52:42.030

6 When does a SUICIDE opcode becomes effective? 2016-05-10T14:15:31.217

6 What are the two arguments to a RETURN opcode? 2016-08-15T18:32:50.797

5 Can a contract fetch the global block gas limit? 2017-01-09T22:41:14.937

5 Can a transaction have a negative fee? 2017-06-26T09:01:43.750

5 Are new Opcodes approved in EIP's implemented in Solidity before they are introduced in a hardfork? 2017-08-08T12:50:50.833

4 Why are there missing opcodes when using the disassembler on bytecode from the blockchain? 2016-05-15T08:57:16.587

4 Can the CALL opcode be used to create a contract? 2017-02-16T09:10:08.740

4 Why does the init code of a contract change for Solidity > 0.4.5? 2017-07-11T14:49:54.817

4 why is the EVM stack limited to 1024? 2017-09-22T23:44:21.147

4 What are the reasons behind jumpdest? 2017-12-21T18:25:56.840

3 Ethereum's Storage: is SSTORE updates only at the post-transaction state? 2016-08-03T09:50:05.883

3 Ethereum Ddos attack 2016-10-15T13:03:46.433

3 Is there any available sandbox for Ethereum's OPCODES? 2016-12-05T00:12:53.733

3 Why doesn't bytecode match the opcodes on Etherscan? 2017-07-26T15:06:19.527

3 evaluation of execution speeds for various opcodes in EVM 2017-08-07T20:56:29.650

3 does the command `evm --debug --code OPCODES` still work? 2017-09-17T20:44:23.733

3 How are storage pointers implemented in the EVM layer? 2018-05-09T16:03:21.063

3 How to separate functions in evm bytecode? 2018-07-28T14:22:23.463

3 Ethereum opcode: meaning of first few instructions? 2018-08-18T15:59:15.967

3 EVM SIGNEXTEND Opcode explanation 2018-11-26T14:33:36.273

2 Is there a decompiler for the binary data in the blockchain 2016-04-21T07:21:09.543

2 Possible to create new contract via a proposal in the ethereum.org/dao framework? 2016-05-24T19:28:26.790

2 Recursive call ends with `VM Exception: invalid opcode` 2016-11-05T19:50:40.283

2 Internal message call CALL opcode 2017-05-29T19:01:22.403

2 analysis of the opcodes used in smart contract execution on ropsten, geth 2017-08-03T19:18:33.007

2 geth console flag/option to output all opcodes executed in call to contract or function invocation 2017-08-07T16:20:33.693

2 Are makeLog instruction functions opcodes or not? 2017-09-28T19:40:39.720

2 Why does PUSH1 0x60 PUSH1 x40 MSTORE store 0x60 at memory location 0x50 (and not 0x40)? 2017-10-05T05:02:51.840

2 Is it possible to get compiler version from the bytecode and smart contract code? 2017-10-06T09:49:33.113

2 Understanding solidity inline assembly code 2017-12-27T19:27:07.370

2 convert bytes to uint8[8] using mstore() 2018-03-07T15:38:04.410

2 Why return to String need so many operations when develop a smart contract? 2018-04-05T15:00:36.777

2 Updated list of EVM Opcodes 2018-05-01T20:39:18.453

2 CALL instruction push GAS to stack? 2018-08-19T16:44:32.600

2 how are negative numbers stored within the EVM stack? 2018-08-21T06:34:43.420

2 What do last few opcodes of a smart contract do? 2018-08-21T14:41:27.727

2 how are conditional JUMPI opcodes valid? 2018-08-22T11:55:18.200

1 Create a contract at a defined address? 2016-07-23T14:07:09.927

1 Where are the opcode 0xfe and 0xfd documented? 2017-06-30T15:12:00.633

1 filter to restrict output of opcode data only to contracts/functions called by local node 2017-08-08T20:59:09.093

1 Why does the EVM program counter not increase by one but by two in PUSH1 opcode? 2017-08-29T11:05:44.927

1 EVM opcodes-prices 2018-04-09T18:57:51.453

1 What happens in CALL when gas is set to 0? 2018-05-27T23:12:15.037

1 What’s the opcode chain for sending ethereum from a smart contract? 2018-06-01T16:59:18.360

1 How can we implement a new opcode in the Ethereum Virtual Machine. 2018-06-19T13:14:27.027

1 Pushing bytes to EVM stack 2018-06-25T20:27:14.177

1 Code scope in evm 2018-08-20T15:46:35.730

1 Are OPCODEs for ETH and ETC different? 2018-09-11T08:38:00.233

1 How to deploy contract with bytecode from etherscan? 2018-09-27T20:19:20.070

0 log output of modified function to geth console 2017-08-08T13:53:10.523

0 Why does an Oraclize contract deployed with Remix JavaScript VM gives an "invalid opcode error" and not on main/testnet? 2017-10-05T07:46:51.697

0 Why is using `<address>.callcode()` discouraged in Solidity? 2017-11-15T11:11:08.640

0 Why is a state-modifying function working from Truffle console, but not when calling from web3? 2018-01-16T11:57:49.693

0 Transaction Error. Exception thrown in contract code. REVERT opcode when sending ETH to crowdsale 2018-03-04T00:41:10.657

0 How to code ADDRESS using opcodes in a solidity function? 2018-03-11T09:54:04.890

0 How does message call send gas? 2018-05-08T03:42:32.597

0 What’s the purpose of the delegatecall second target parameter? 2018-06-18T19:07:51.570

0 callvalue opcode, for what? 2018-08-23T11:53:08.463

0 Opcodes PUSH, DUP and SWAP? 2018-09-05T09:29:55.933