Module vm 

Structs

FrameTxContext

Context for frame transaction (EIP-8141) execution. This is set when executing a frame transaction and is used by APPROVE, TXPARAM, FRAMEDATALOAD, and FRAMEDATACOPY opcodes.

PrefixSimResult

Result of VM::simulate_validation_prefix (EIP-8141 mempool simulation).

Substate

Execution substate that tracks changes during transaction execution.

VM

Enums

VMType

Specifies whether the VM operates in L1 or L2 mode.

Functions

frame_signatures_are_low_s

Local mempool anti-malleability policy (NOT consensus): returns false if any frame signature is high-s (s > n/2).

frame_value_exceeds_balance

The LEVM (Lambda EVM) execution engine.

validate_frame_signatures

Validate every EIP-8141 outer signature (spec commit fe0940cae2) against the canonical sig_hash. Returns false if any signature is malformed or invalid. Verification gas is intrinsic (already in total_gas_limit), so a scratch budget is used for the crypto precompiles and their deduction is ignored.

Type Aliases

Storage

Storage mapping from slot key to value.