Solidity

推荐 Ethereum Virtual Machine Opcodes Arithmetic Operations 1 2 3 4 5 6 7 8 9 10 11 12 ADD //Add the top two stack items MUL //Multiply the top two stack items SUB //Subtract the top two stack items DIV //Integer division SDIV //Signed integer division MOD //Modulo (remainder) operation SMOD //Signed modulo operation ADDMOD //Addition modulo any number MULMOD //Multiplication modulo any number EXP //Exponential operation SIGNEXTEND //Extend the length of a two’s complement signed integer SHA3 //Compute the Keccak-256 hash of a block of memory Stack Operations 1 2 3 4 5 6 7 8 9 10 POP //Remove the top item from the stack MLOAD //Load a word from memory MSTORE //Save a word to memory MSTORE8 //Save a byte to memory SLOAD //Load a word from storage SSTORE //Save a word to storage MSIZE //Get the size of the active memory in bytes PUSHx //Place x-byte item on the stack, where x can be any integer from 1 to 32 (full word) inclusive DUPx //Duplicate the x-th stack item, where x can be any integer from 1 to 16 inclusive SWAPx //Exchange 1st and (x+1)-th stack items, where x can by any integer from 1 to 16 inclusive Process Flow Operations 1 2 3 4 5 STOP //Halts execution JUMP //Set the program counter to any value JUMPI //Conditionally alter the program counter PC //Get the value of the program counter (prior to the increment corresponding to this instruction) JUMPDEST //Mark a valid destination for jumps System Operations 1 2 3 4 5 6 7 8 9 10 LOGx //Append a log record with +x+ topics, where +x+ is any integer from 0 to 4 inclusive CREATE //Create a new account with associated code CALL //Message-call into another account, i.e. run another account's code CALLCODE //Message-call into this account with an another account’s code RETURN //Halt execution and return output data DELEGATECALL //Message-call into this account with an alternative account’s code, but persisting the current values for sender and value STATICCALL //Static message-call into an account REVERT //Halt execution reverting state changes but returning data and remaining gas INVALID //The designated invalid instruction SELFDESTRUCT //Halt execution and register account for deletion Logic Operations 1 2 3 4 5 6 7 8 9 10 11 LT //Less-than comparison GT //Greater-than comparison SLT //Signed less-than comparison SGT //Signed greater-than comparison EQ //Equality comparison ISZERO //Simple not operator AND //Bitwise AND operation OR //Bitwise OR operation XOR //Bitwise XOR operation NOT //Bitwise NOT operation BYTE //Retrieve a single byte from a full-width 256 bit word Environmental Operations 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GAS //Get the amount of available gas (after the reduction for this instruction) ADDRESS //Get the address of the currently executing account BALANCE //Get the account balance of any given account ORIGIN //Get the address of the EOA that initiated this EVM execution CALLER //Get the address of the caller immediately responsible for this execution CALLVALUE //Get the ether amount deposited by the caller responsible for this execution CALLDATALOAD //Get the input data sent by the caller responsible for this execution CALLDATASIZE //Get the size of the input data CALLDATACOPY //Copy the input data to memory CODESIZE //Get the size of code running in the current environment CODECOPY //Copy the code running in the current environment to memory GASPRICE //Get the gas price specified by the originating transaction EXTCODESIZE //Get the size of any account's code EXTCODECOPY //Copy any account’s code to memory RETURNDATASIZE //Get the size of the output data from the previous call in the current environment RETURNDATACOPY //Copy of data output from the previous call to memory Block Operations 1 2 3 4 5 6 BLOCKHASH //Get the hash of one of the 256 most recently completed blocks COINBASE //Get the block’s beneficiary address for the block reward TIMESTAMP //Get the block’s timestamp NUMBER //Get the block’s number DIFFICULTY //Get the block’s difficulty GASLIMIT //Get the block’s gas limit