| fork | group |
|---|---|
Frontier |
Stack Memory Storage and Flow Operations |
Index 1 is top of the stack. See PUSH.
Pop from the stack a word as offset to locate and read a word from the memory at offset position and push into top of stack. Expand memory with uint256(0) to the offset position if necessary.
offset: offset in the memory in bytes.
value: the 32 bytes in memory starting at that offset. If it goes beyond its current size (see MSIZE), writes 0s.
| Memory |
|---|
0x00000000000000000000000000000000000000000000000000000000000000FF |
| * | Input | Output | * | * | Input | Output |
|---|---|---|---|---|---|---|
1 |
0 |
0xFF |
* | 1 |
1 |
0xFF00 |
The state changes done by the current context are reverted in those cases:
- Not enough gas.
- Not enough values on the stack.