Ethereum: How to determine if a target network supports a given EVM opcode?

Determination of EVM opcodes in target networks: a comprehensive guide

As a smart contract development or security researcher, understanding the compatibility of your Ethereum-based project with various networks is of crucial importance in order to ensure seamless provision and to minimize risks in connection with errors and vulnerabilities. A critical aspect that often remains unnoticed is the support of specific EVM opcodes (Ethereum Virtual Machine) in target networks.

In this article we will deal with the world of EVM opcodes and a step-by-step instructions for determination whether a certain EVM op code is supported in a target network before providing.

What are EVM opcodes?

EVM opcodes represent instructions that the Virtual Machine (EVM) executes in the Ethereum during its execution cycle. These instructions can be used for various purposes, e.g. B. for the execution of intelligent contract logic, interaction with external services and administrative status. The EVM uses a series of predefined opcodes to carry out these instructions.

Why is EVM Opcode supported?

If you make sure that your EVM op code is supported in the target network, this is of crucial importance for several reasons:

• Avoidance of errors

  : If you do not support an EVM opcode, this can lead to unexpected behaviors or mistakes if you interact with intelligent contracts in this network.

• Safety : The support of a certain EVM opcode ensures that the security guarantees of your contract are not affected by unknown or non -supported opcodes.

• Compliance : In some jurisdiction, the use of non -supported EVM opcodes can trigger the regulatory requirements for the provision of intelligent contract.

How to determine whether a target network supports a certain EVM opcode

To determine whether a target network supports a certain EVM op code, you can follow the following steps:

• Check the EVM -OPCODE list of the Ethereum -Network : Visit the official Ethereum -Website ([ Female ( /EIP143) And check the EVM opcode list for the target network.

• Search for the EVM opcode registration

  : The EVM -OPCODE register is maintained by the Ethereum Foundation. You can search for the EVM opcode in which you are interested in determining whether it is supported in various networks.

• ** Use generate reports on code coverage). You can use these libraries to check whether an EVM opcode is supported in a target network.

• Test your contract : Once you have confirmed that the EVM opcode is supported, test your smart contract with the supported opcodes.

Example application cases:

• If you develop a new project based on Ethereum and want to ensure that the «DelegatedStorageat» opcode is supported in the target network, you can use the following code:

`Solidity

Pragma solidity ^0.8.0;

Treaty MyContract {

Function Test Delegated Storage State () Public {

// Use the DelegatedStorageat Opcode

}

}

`

• If you are a security researcher and want to identify potential weaknesses in an existing contract, you can use tools such as «Solidity Coverage» to analyze the code coverage of various EVM opcodes.

Diploma

The determination of whether a target network supports a certain EVM opcode is crucial to ensure the integrity and security of your project based by Ethereum. If you follow these steps and use relevant libraries or tools, you can provide your intelligent contracts in supported networks and at the same time minimize risks associated with unknown or non -supported opcodes. Remember to stay up to date on the latest changes in the Ethereum ecosystem and to keep your projects too compliant with the official requirements.

Additional resources:

• Official Ethereum -Documentation: [ (

• EVM -OPCODE registration: [https: // github.

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