The Complete Solidity Course - Zero to Advanced for Blockchain and Smart Contracts - Assembly and EVM OpCodes with Solid

The video tutorial explains that smart contracts on the Ethereum blockchain are not directly written in Solidity but are compiled into a lower-level language for the Ethereum Virtual Machine (EVM). Solidity is used to create efficient code compilations, which are then translated into OP codes that the EVM understands. The tutorial also covers the use of inline assembly within Solidity, allowing direct manipulation of the EVM, which can be risky and should only be used when necessary. A practical example is provided to demonstrate how a function can be created using inline assembly to interact with the EVM.

What is the role of Solidity in the Ethereum blockchain?

• It is a high-level language compiled to a lower-level language for the EVM.

• It is the actual code executed on the blockchain.

• It is a tool for managing blockchain transactions.

• It is used to directly manipulate the EVM.

What are OP codes in the context of the Ethereum Virtual Machine?

• They are security protocols for blockchain transactions.

• They are tools for debugging smart contracts.

• They are low-level instructions executed by the EVM.

• They are high-level programming languages.

Why might a developer choose to use inline assembly in Solidity?

• To avoid using OP codes.

• To increase the readability of the code.

• To directly manipulate the EVM when necessary.

• To simplify the code.

What is a potential risk of using inline assembly in Solidity?

• It can make the code more readable.

• It can increase the size of the smart contract.

• It can lead to direct memory manipulation, which is risky.

• It can make the code run slower.

What operation is performed by the function 'add to EVM' in the example?

• It multiplies two numbers.

• It divides one number by another.

• It adds two numbers.

• It subtracts one number from another.