fix: old implementation for older evm versions

bgd-labs · Dec 23, 2024 · 331e8e2 · 331e8e2
1 parent aca0882
commit 331e8e2
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/zksync/src/contracts/utils/ScriptUtilsZkSync.sol b/zksync/src/contracts/utils/ScriptUtilsZkSync.sol
@@ -188,8 +188,13 @@ library Create2UtilsZkSync {
       let dataPtr := add(data, 32)
       let resultPtr := add(result, 32)
 
-      // Use mcopy to efficiently copy the slice
-      mcopy(resultPtr, add(dataPtr, start), length)
+      // Copy the slice
+      let words := div(add(length, 31), 32)
+      let srcPtr := add(dataPtr, start)
+
+      for { let i := 0 } lt(i, words) { i := add(i, 1) } {
+        mstore(add(resultPtr, mul(i, 32)), mload(add(srcPtr, mul(i, 32))))
+      }
 
       mstore(result, length)
     }