Features between Ethereum

Vision virtual machine (VVM) is based on Ethereum solidity language, it also has Vision's own features.

VVM uses the concept of entropy instead of gas.

  • No concept of gasprice. VVM has a stable entropy price or floating rate from freezing VS.

  • There is no concept of block.difficulty. It is a constant 0.

  • There is no concept of block.gaslimit. It is always 0.

  • The selfbalance, chianid opcode is not supported.

  • Most instructions consume almost the same amount of EVM, memory operation instructions consume less than EVM.

  • COINBASE opcode returns a 21-byte address

  • The contract address created by the CREATE2 instruction is calculated with a prefix of 0x41, not 0xff for EVM.

  • The CREATE instruction creates a contract address calculated as keccak256(transaction root hash + nonce), where nonce is the index of the current internal transaction, starting from 0.

  • Adding VRC10 token function and related opcodes

  • Adding opcodes for bulk signature verification and multisig validation

  • Adding shielded VRC20 contracts and several librustzcash instructions

  • Internal Transaction has No data information.

  • An extra error type TransactionException is introduced, it interrupts VM execution without consuming all entropy.

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