| OP Code (Hexidecimal) | Operation1 | Description | Gas |
|---|---|---|---|
| 0x50 | POP 1 0 | Remove item from stack | 2 |
| 0x51 | MLOAD 1 1 | Load word from memory | 32 |
| 0x52 | MSTORE 2 0 | Save word to memory | 32 |
| 0x53 | MSTORE8 2 0 | Save byte to memory | 3 |
| 0x54 | SLOAD 1 1 | Load word from storage | 800 |
| 0x55 | SSTORE 2 0 | Save word to storage | 200002 |
| 0x56 | JUMP 1 0 | Alter the program counter | 8 |
| 0x57 | JUMPI 2 0 | Conditionally alter the program counter | 10 |
| 0x58 | PC 0 1 | Get the value of the program counter prior to the increment corresponding to this instruction | 2 |
| 0x59 | MSIZE 0 1 | Get the size of active memory in bytes | 2 |
| 0x5a | GAS 0 1 | Get the amount of available gas, including the corresponding reduction for the cost of this instruction | 2 |
| 0x5b | JUMPDEST 0 0 | Mark a valid destination for jumps. This operation has no effect on machine state during execution. | 1 |