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Simplify precompiles

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Alex Beregszaszi 2022-06-27 01:22:00 +02:00 committed by Nikola Matic
parent 12aa9e54cb
commit a58fbba0db
1 changed files with 4 additions and 10 deletions
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14
solstdlib/src/precompiles.sol
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@ -28,17 +28,11 @@ function ecrecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) returns (address
mstore(add(input, 96), s) mstore(add(input, 96), s)
// Prepare output // Prepare output
let output := add(input, 128) mstore(0, 0)
mstore(output, 0)
// Call the precompile // Call the precompile
let ret := staticcall(gas(), 1, input, 128, output, 32) let ret := staticcall(gas(), 1, input, 128, 0, 32)
switch ret if iszero(ret) { revert(0, 0) }
case 1 { // Success addr := mload(0)
addr := mload(output)
}
default { // Failure
// Need to do anything?
}
} }
} }