callData.sol

callData.sol

function callWithData(address dest, bytes data) 
        private returns (bytes32 c)
    {
        assembly {
            let freemem := mload(0x40)
            
            pop(
            call(      
                5000,
                dest,
                0,
                add(data, 0x20),
                mload(data),
                freemem,
                0x20
            )
            )
    
            c := mload(freemem)
            mstore(0x40, add(freemem, 0x20))
        }
    }