🔮 Let's dive into the enchanting world of Ethereum!
And discover the secrets of the Ethereum Virtual Machine (EVM), a magical brain that brings smart contracts to life
Gas, bytecode, stack, and memory—unravel the mysteries of this captivating realm where code wields its powers
📚 TL;DR
EVM is our friendly robot with a giant brain
It helps smart contracts (magical agreements) to work correctly within a defined set of rules and commands
EVM uses "gas" as energy to perform tasks ...
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It has a special stack and memory to solve problems and remember things
Magical agreements are divided into small units called Bytecodes
Each bytecode is a specific operation or command to fulfill
Let us hear this story of how the EVM brings Ethereum to life!
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In the world of Ethereum lives a robot with a giant brain called the Ethereum Virtual Machine (EVM)
Entrusted with the job of making sure that all the little programs, called smart contracts, could do their tasks correctly
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Smart contracts are agreements that are written using a magical language called Solidity
EVM reads and understands these smart contracts
To do its job, the robot needs energy which is called the "gas"
Each task that it performs costs some gas
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Just like in our world, some tasks are easy, and some are difficult
EVM uses gas to measure how hard a task is
The harder the task, the more gas it needs
Think of it like a game where you spend energy points to do different activities
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When someone wants to use a smart contract, they send a message to the EVM
It receives this message, reads the smart contract, and starts working
And follows all the instructions in the contract step by step
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Bytecode
Smart contracts are written in a code that only EVM understands
Tiny instructions that tell it what to do - called the bytecode
Each specific operation or command is the opcode
EVM processes these - one by one
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Stack
A special place where EVM puts and takes out pieces of information
Exactly like a stack of blocks where it can easily access the top block
It uses the stack to remember things and solve problems
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Memory
Sometimes, it needs more space to remember things
More like a whiteboard where it can write down temporary information and access information while it's working during the execution of smart contracts
Memory is temporary and cleared after contract execution
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Storage
Unlike memory which is temporary, EVM has a storage vault where it can store and retrieve data for each smart contract
It ensures the persistence and integrity of the data on the blockchain & helps smart contracts remember things even when the magical world changes
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Gas Optimization
A smart contract has to be efficient by using as little energy (gas)
People who write smart contracts try to make them efficient so that EVM can work faster and save energy
It is done by simplifying code, optimizing storage, and making tasks easier
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EVM is always evolving
Smart people are constantly working to make it even better, faster, and more secure
They want the magic world of Ethereum to be a wonderful place for everyone
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And that's the story of the Ethereum Virtual Machine (EVM)
It's a powerful robot that brings smart contracts to life in the magical world of Ethereum
Stay curious, and remember to keep exploring!
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For a little more technical post, feel free to give this article a read
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medium.com/@everythingblockchain/a-deep-dive-into-the-ethereum-virtual-machine-part-i-eb0c2eb4f8f3
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