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# [G-21] Use assembly to write address storage values
Summary
[G-21] Use assembly to write address storage values
By using assembly to write to address storage values, you can bypass some of these operations and lower the gas cost of writing to storage. Assembly code allows you to directly access the Ethereum Virtual Machine (EVM) and perform low-level operations that are not possible in Solidity.
example of using assembly to write to address storage values:
contract MyContract {
address private myAddress;
function setAddressUsingAssembly(address newAddress) public {
assembly {
sstore(0, newAddress)
}
}
}
file: /src/Beedle.sol
15 function _afterTokenTransfer(address from, address to, uint256 amount)
https://github.com/Cyfrin/2023-07-beedle/blob/main/src/Beedle.sol#L15
file: /src/Lender.sol
101 feeReceiver = _feeReceiver;
https://github.com/Cyfrin/2023-07-beedle/blob/main/src/Lender.sol#L101
file: /src/utils/Ownable.sol
20 owner = _owner;
https://github.com/Cyfrin/2023-07-beedle/blob/main/src/utils/Ownable.sol#L20
Prize pool breakdown
Total prize
20,000 USDC
nSLOC
70628 USDC / LOC
18,000 USDC
2,000 USDC
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