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Calldata.md

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63 - Calldata

Calldata is a read-only byte-addressable space where the data parameter of a transaction or call is held.

This is accessed with CALLDATASIZE/CALLDATALOAD/CALLDATACOPY instructions.

Slide Screenshot

063.jpg

Slide Text

  • Data Parameters
  • Txs & Message Calls
  • Read-only
  • Byte-addressable
  • Three Instructions -> CALLDATASIZE, CALLDATALOAD, CALLDATACOPY

References