Convert bytes20 to address in assembly

Question

Can you convert a bytes20 to address in assembly (not solidity-typecasting)?

If so, how?

Answer 1

SOLUTION:

If the address is in the first bytes, you can do:

assembly {
    parsed := shr(96, mload(add(data, 32)))
}

With this, you right-shift 96 bits (or 12 bytes), and then assign to an address type.

This solution won't work if you assign to a bytes20 because bytes20 grabs the highest bytes while address the lowest.

Answer 2

Yep, heres an example of what the function might look like:

function convertBytes20ToAddress(bytes bytesInput) internal returns (address addressOutput) {
    assembly {
      addressOutput := mload(add(bytesInput,20))
    } 
}