// Copy calldata to memory offset 0
calldatacopy(0, 0, calldata_size);
// Create a new contract based on that calldata stored in memory, deposit 0 wei into it.
// Return the new contract's address back to the stack.
contract_address = create(0, 0, calldata_size);
// Delegatecall
// Return 0 or 1
returndata = delegatecall(gas, contract_address, 0, 0, 0, 0);
// Read the storage slot 5
element = sload(0x05);
if (element == 0xAA) {
jump(0x1E);
}
The new contract must store 0xAA in storage slot 5. The runtime code is easy to write:
PUSH1 0xAA
PUSH1 0x05
SSTORE
Compile:
60aa600555
Build a creation code just like what we did in Puzzle 2:
